Recording body and article

Abstract

Provided is a recording body such that it is difficult to take out a recording member from the recording body. The recording body includes a laminated body and an outer material covering at least a portion of a surface of the laminated body. The laminated body includes a base material, an intermediate layer provided on the base material and having a receiving portion, a recording member provided in the receiving portion, and a cover layer provided on the intermediate layer. The accommodating portion is provided in a part of the surface of the intermediate layer. The accommodating part is a through hole penetrating through the intermediate layer in the thickness direction thereof or a recessed part recessed in the thickness direction of the intermediate layer. The recording member includes a color-developing layer containing a coloring compound having electron-donating properties, a developer having electron-accepting properties, and a matrix resin. The substrate, the intermediate layer, and the cover layer contain the same type of resin material. The substrate and the intermediate layer are bonded to each other by fusion, and the intermediate layer and the cover layer are bonded to each other by fusion.

Description

Technical Field

[0001] The present disclosure relates to records and articles including records. Background Art

[0002] In recent years, it has been considered that articles such as product labels, sign plates or accessories include a recording member configured to be able to change the coloring state by external stimulation. For example, Patent Document 1 discloses an anti-counterfeiting structure in which a security device and a transparent protective sheet are sequentially arranged on a coloring layer having a laser coloring portion.

[0003] Reference List

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2019-38141 Summary of the invention

[0006] Problems to be solved by the present invention

[0007] In recent years, from the viewpoint of anti-counterfeiting, anti-tampering, etc., it is desired to make it difficult to remove the recording member from an article such as a product label, a logo plate, or an accessory.

[0008] An object of the present disclosure is to provide a record body capable of making it difficult to remove a record member therefrom, and an article including the record body.

[0009] Solution to the problem

[0010] In order to solve the above problems, the first recording medium according to the present disclosure includes:

[0011] A laminate; and

[0012] an outer material covering at least a portion of a surface of the laminate, wherein

[0013] The laminate comprises:

[0014] Base material;

[0015] An intermediate layer is disposed on the substrate and has a receiving portion;

[0016] a recording member disposed in the receiving portion; and

[0017] A covering layer, provided on the middle layer,

[0018] The receiving portion is provided in a portion of the plane of the intermediate layer,

[0019] The receiving portion is a through hole penetrating the middle layer in the thickness direction of the middle layer or a recessed portion recessed in the thickness direction of the middle layer.

[0020] The recording member includes a color developing layer, the color developing layer containing a coloring compound having an electron donating property, a developer having an electron accepting property, and a matrix resin,

[0021] The substrate, the intermediate layer and the cover layer comprise the same type of resin material, and

[0022] The base material and the intermediate layer are bonded to each other by fusion, and the intermediate layer and the cover layer are bonded to each other by fusion.

[0023] The second recording medium according to the present disclosure includes:

[0024] A laminate; and

[0025] an outer material covering at least a portion of a surface of the laminate, wherein

[0026] The laminate comprises:

[0027] Base material;

[0028] Covering layer;

[0029] an intermediate layer disposed between the substrate and the cover layer and having a receiving portion; and

[0030] A recording member is disposed in the receiving portion,

[0031] The receiving portion is provided in a portion of the plane of the intermediate layer,

[0032] The receiving portion is a through hole penetrating the middle layer in the thickness direction of the middle layer or a recessed portion recessed in the thickness direction of the middle layer.

[0033] The recording member includes a color developing layer, the color developing layer containing a coloring compound having an electron donating property, a developer having an electron accepting property, and a matrix resin,

[0034] The substrate, the intermediate layer and the cover layer comprise the same type of resin material, and

[0035] The substrate and the intermediate layer are bonded to each other by a heat-curing adhesive, and the intermediate layer and the cover layer are bonded to each other by a heat-curing adhesive.

[0036] A third recording medium according to the present disclosure includes:

[0037] a laminate structure in which a plurality of laminates are laminated; and

[0038] an outer material covering at least a portion of a surface of the laminate structure, wherein

[0039] The laminate comprises:

[0040] Base material;

[0041] An intermediate layer is disposed on the substrate and has a receiving portion;

[0042] a recording member disposed in the receiving portion; and

[0043] A covering layer, provided on the middle layer,

[0044] The receiving portion is provided in a portion of the plane of the intermediate layer,

[0045] The receiving portion is a through hole penetrating the middle layer in the thickness direction of the middle layer or a recessed portion recessed in the thickness direction of the middle layer.

[0046] The recording member includes a color developing layer, the color developing layer containing a coloring compound having an electron donating property, a developer having an electron accepting property, and a matrix resin,

[0047] The substrate, the intermediate layer and the cover layer comprise the same type of resin material, and

[0048] The base material and the intermediate layer are bonded to each other by fusion, and the intermediate layer and the cover layer are bonded to each other by fusion.

[0049] A fourth recording medium according to the present disclosure includes:

[0050] a laminate structure in which a plurality of laminates are laminated; and

[0051] an outer material covering at least a portion of a surface of the laminate structure, wherein

[0052] The laminate comprises:

[0053] Base material;

[0054] Covering layer;

[0055] an intermediate layer disposed between the substrate and the cover layer and having a receiving portion; and

[0056] A recording member is disposed in the receiving portion,

[0057] The receiving portion is provided in a portion of the plane of the intermediate layer,

[0058] The receiving portion is a through hole penetrating the middle layer in the thickness direction of the middle layer or a recessed portion recessed in the thickness direction of the middle layer.

[0059] The recording member includes a color developing layer containing a coloring compound having an electron donating property, a developer having an electron accepting property, and a matrix resin,

[0060] The substrate, the intermediate layer and the cover layer comprise the same type of resin material, and

[0061] The base material and the intermediate layer are bonded to each other by a heat-curing adhesive, and the intermediate layer and the cover layer are bonded to each other by a heat-curing adhesive.

[0062] An article according to the present disclosure includes a first record, a second record, a third record, or a fourth record. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 is a perspective view showing an example of the appearance of a laminate.

[0064] Figure 2 is along Figure 1 A cross-sectional view taken along line AA in FIG.

[0065] Figure 3 is a cross-sectional view showing an example of a configuration of a recording member.

[0066] Figure 4 is a cross-sectional view showing an example of a configuration of a recording member.

[0067] Figure 5 is a diagram of a test apparatus for a 90 degree peel test.

[0068] Figure 6 A is a diagram for explaining the preparation steps for the 90-degree peel test. Figure 6 B is a diagram of the test equipment used for the 90 degree peel test.

[0069] Figure 7 is a cross-sectional view showing a configuration example of a laminate.

[0070] Figure 8 is a cross-sectional view showing a configuration example of a laminate.

[0071] Fig. 9 is a cross-sectional view showing a configuration example of a laminate.

[0072] Fig.10 is a perspective view showing an example of the appearance of a laminate.

[0073] Fig.11 is a cross-sectional view showing a configuration example of a laminate.

[0074] Fig.12 is a cross-sectional view showing a configuration example of a laminate.

[0075] Fig.13 is a cross-sectional view showing a configuration example of a laminate.

[0076] Fig.14 is a cross-sectional view showing a configuration example of a laminate.

[0077] Fig.15 is a cross-sectional view showing an example of a configuration of a recording member.

[0078] Fig.16is a cross-sectional view showing an example of a configuration of a recording member.

[0079] Fig.17 is a cross-sectional view showing an example of a configuration of a recording member.

[0080] Fig.18 is a cross-sectional view showing an example of a configuration of a recording member.

[0081] Fig.19 is a cross-sectional view showing an example of a configuration of a recording member.

[0082] Fig. 20 is a cross-sectional view showing an example of a configuration of a recording member.

[0083] Fig.21 is a cross-sectional view showing an example of a configuration of a recording member.

[0084] Fig. 22 is a cross-sectional view showing an example of a configuration of a recording member.

[0085] Fig.23 is a cross-sectional view showing an example of a configuration of a recording member.

[0086] Fig.24 is a perspective view showing an example of the appearance of the recording medium according to the first embodiment.

[0087] Fig.25 It is along Fig.24 A cross-sectional view taken along line AA in FIG.

[0088] Fig.26 is a cross-sectional view showing a configuration example of a laminate.

[0089] Fig. 27 is a cross-sectional view showing an example of the configuration of the exterior material.

[0090] Fig.28 is a cross-sectional view showing an example of the configuration of the exterior material.

[0091] Fig.29 is a cross-sectional view showing an example of the configuration of the exterior material.

[0092] Fig.30 is a cross-sectional view showing an example of the configuration of the exterior material.

[0093] Fig.31 is a cross-sectional view showing an example of the configuration of the exterior material.

[0094] Fig.32 is a cross-sectional view showing an example of the configuration of the exterior material.

[0095] Fig.33is a cross-sectional view showing an example of the configuration of the exterior material.

[0096] Fig.34 is a cross-sectional view showing an example of the configuration of the exterior material.

[0097] Fig.35 is a cross-sectional view showing an example of the configuration of the exterior material.

[0098] Fig.36 is a cross-sectional view showing an example of the configuration of the exterior material.

[0099] Fig.37 is a cross-sectional view showing an example of fixing a recorded body to an article.

[0100] Fig.38 is a cross-sectional view showing an example of fixing a recorded body to an article.

[0101] Fig.39 is a plan view showing an example of the appearance of a recording medium according to the second embodiment.

[0102] Fig.40 is a cross-sectional view showing a configuration example of a recording body according to the second embodiment.

[0103] Fig.41 is a cross-sectional view showing an example of a configuration of a recording body according to a modification.

[0104] Fig.42 is a cross-sectional view showing an example of a configuration of a recording body according to a modification.

[0105] Fig.43 is a cross-sectional view showing an example of a configuration of a recording body according to a modification.

[0106] Fig.44 A is a plan view showing an example of the appearance of a recording medium according to a modification. Fig.44 B is along Fig.44 A is a cross-sectional view taken along line AA.

[0107] Fig.45 A is a plan view showing an example of the appearance of a recording medium according to a modification. Fig.45 B is along Fig.45 A is a cross-sectional view taken along line AA.

[0108] Fig.46 is a cross-sectional view showing an example of a configuration of a recording body according to a modification.

[0109] Fig.47 is a cross-sectional view showing an example of a configuration of a recording body according to a modification.

[0110] Fig.48is a cross-sectional view showing an example of a configuration of a recording body according to a modification.

[0111] Fig.49 A is a plan view of a recording medium according to the third embodiment. Fig.49 B is along Fig.49 A is a cross-sectional view taken along line AA.

[0112] Fig.50 A is a plan view showing a configuration example of a recording body according to a modification. Fig.50 B is along Fig.50 A is a cross-sectional view taken along line AA.

[0113] Fig.51 is a cross-sectional view showing an example of a configuration of a recording body according to a modification.

[0114] Fig.52 is a cross-sectional view showing an example of a configuration of a recording body according to a modification.

[0115] Fig.53 is a perspective view showing an example of the appearance of a recording body according to the fourth embodiment.

[0116] Fig.54 is a cross-sectional view showing a configuration example of a recording body according to a fourth embodiment.

[0117] Fig.55 is a cross-sectional view showing an example of a configuration of a recording body according to a modification.

[0118] Fig.56 A and Fig.56 Each of B is a cross-sectional view for explaining an embodiment of a method for manufacturing a recording body according to a modification.

[0119] Fig.57 is a cross-sectional view showing an example of a configuration of a recording body according to a modification.

[0120] Fig.58 is a cross-sectional view showing an example of a configuration of a recording body according to a modification.

[0121] Fig.59 A is a front view showing an appearance example of a recording body according to the fifth embodiment. Fig.59 B is a side view showing an example of the appearance of the recording body according to the fifth embodiment.

[0122] Fig.60 It is a diagram showing an example of a configuration of an image authentication system.

[0123] Fig.61 It is a diagram for explaining the artifact metric registration and authentication method (1).

[0124] Fig.62 It is a diagram for explaining the artifact metric registration and authentication method (1).

[0125] Fig.63 It is a diagram for explaining the artifact metric registration and authentication method (2).

[0126] Fig.64 It is a diagram for explaining the artifact metric registration and authentication method (2).

[0127] Fig.65 is a plan view showing a configuration example of a recording body according to the sixth embodiment.

[0128] Fig.66 A. Fig.66 B and Fig.66 Each of C is described along Fig.65 A cross-sectional view of an embodiment of a cross-sectional structure taken along line AA in FIG.

[0129] Fig.67 1 is a plan view showing an example of display of drug-related information.

[0130] Fig.68 It is a plan view showing a display example of drug-related information.

[0131] Fig.69 1 is a plan view showing an example of display of drug-related information.

[0132] Fig.70 It is a plan view showing a display example of drug-related information.

[0133] Fig.71 It is a plan view showing a display example of drug-related information.

[0134] Fig.72 is a perspective view showing an external appearance example of a medicine container.

[0135] Fig.73 is a plan view showing a configuration example of a recording body according to the sixth embodiment.

[0136] Fig.74 is an exploded perspective view showing a configuration example of a recording body according to the seventh embodiment.

[0137] Fig.75 This is a diagram for explaining an example of using an identification tag.

[0138] Fig.76 is a graph showing the measurement results of the peel strength of the samples. DETAILED DESCRIPTION

[0139] The embodiments of the present disclosure will be described in the following order with reference to the drawings. In addition, in all the drawings of the following embodiments, the same reference numerals are given to the same or corresponding parts.

[0140] 1 Laminated body

[0141] 2 Recording components

[0142] 3. First Embodiment (Example of Recording Material)

[0143] 4 Second Embodiment (Example of Recording Material)

[0144] 5 Third Embodiment (Example of Recording Material)

[0145] 6 Fourth Embodiment (Example of Recording Material)

[0146] 7 Fifth Embodiment (Example of Recording Material)

[0147] 8 Sixth Embodiment (Example of Recording Material)

[0148] 9 Seventh Embodiment (Example of Recording Material)

[0149] 10 Modification

[0150] 11 Reference Examples and Examples

[0151] <1 Laminated body>

[0152] Hereinafter, laminated bodies 1 to 6 included in the recording bodies of the first to seventh embodiments will be described.

[0153] <1-1 Laminated Body 1>

[0154] [Configuration of Laminated Body 1]

[0155] Figure 1 1 is a perspective view showing an external appearance example of the configuration of the laminated body 1 . Figure 2 is along Figure 1 The laminated body 1 includes a substrate 11 , an adhesive layer 12 , an intermediate layer 13 , an adhesive layer 14 , a cover layer 15 , and a recording member 20 .

[0156] (Substrate 11)

[0157] The substrate 11 is a support body that supports the recording member 20 and the intermediate layer 13. The substrate 11 may be a card. The substrate 11 may have a color such as white. In the substrate 11, a pattern, a picture, a photo, a character, a combination of two or more thereof, etc. (hereinafter, referred to as "pattern, etc.") may be printed on one main surface on one side on which the intermediate layer 13, the recording member 20, etc. are provided.

[0158] The substrate 11 includes, for example, plastic. The substrate 11 may include at least one selected from the group consisting of a colorant, an antistatic agent, a flame retardant, a surface modifier, and the like as needed.

[0159] The plastic includes, for example, at least one selected from the group consisting of ester resins, amide resins, olefin resins, vinyl resins, acrylic resins, imide resins, styrene resins, engineering plastics, etc. In the case where the substrate 11 includes two or more resins, the two or more resins may be mixed, copolymerized, or laminated.

[0160] Ester resins include, for example, at least one selected from the group consisting of polyethylene terephthalate (PET) resins, polybutylene terephthalate (PBT) resins, polyethylene naphthalate (PEN) resins, polyethylene terephthalate-ethylene isophthalate copolymer resins, terephthalic acid-cyclohexanedimethanol-ethylene glycol copolymer resins, etc. Amide resins include, for example, at least one selected from the group consisting of nylon 6 resins, nylon 66 resins, nylon 610 resins, etc. Olefin resins include, for example, at least one selected from the group consisting of polyethylene (PE) resins, polypropylene (PP) resins, polymethylpentene (PMP) resins, etc. Vinyl resins include, for example, polyvinyl chloride (PVC) resins.

[0161] Acrylic resins include, for example, at least one selected from the group consisting of polyacrylate resins, polymethacrylate resins, polymethyl methacrylate (PMMA) resins, etc. Imides include, for example, at least one selected from the group consisting of polyimide (PI) resins, polyamideimide (PAI) resins, polyetherimide (PEI) resins, etc. Styrene resins include, for example, at least one selected from the group consisting of polycarbonate (PC) resins, polystyrene (PS) resins, high-impact polystyrene resins, acrylonitrile-styrene resins (AS resins), acrylonitrile-butadiene-styrene resins (ABS resins), etc. Engineering plastics include, for example, at least one selected from the group consisting of polycarbonate (PC) resins, polyarylate (PAR) resins, polysulfone (PSF) resins, polyethersulfone resins (PES), polyphenylene ether (PPE) resins, polyphenylene sulfide (PPS) resins, polyetherketone (PEK) resins, polyetheretherketone (PEEK) resins, polyphenylene ether (PPO) resins, polyether sulfite resins, and the like.

[0162] (Middle layer 13)

[0163] The intermediate layer 13 is provided on the main surface of the substrate 11, and the adhesive layer 12 is sandwiched between the substrate 11 and the intermediate layer 13. The intermediate layer 13 includes a housing portion 13A for accommodating the recording member 20. The housing portion 13A is provided in a part of the plane of the intermediate layer 13. The housing portion 13A may be a through hole that penetrates the intermediate layer 13 in the thickness direction of the intermediate layer. The intermediate layer 13 is used to suppress the height difference formed by the recording member 20 when the recording member 20 is sandwiched between the substrate 11 and the cover layer 15. The intermediate layer 13 has substantially the same thickness as the recording member 20, and covers an area other than an area where the recording member 20 is provided in one main surface of the substrate 11.

[0164] The intermediate layer 13 has a film shape. The intermediate layer 13 may have transparency. The intermediate layer 13 includes plastic. As the plastic, the same materials as the substrate 11 can be cited.

[0165] (cover layer 15)

[0166] The cover layer 15 is provided on the intermediate layer 13 and the recording member 20, and covers the intermediate layer 13 and the recording member 20. The adhesive layer 14 is sandwiched between the intermediate layer 13 / recording member 20 and the cover layer 15. The cover layer 15 protects the internal components of the laminate 1 (i.e., the recording member 20 and the intermediate layer 13) and maintains the mechanical reliability of the laminate 1.

[0167] The cover layer 15 has a film shape. The cover layer 15 has transparency. The cover layer 15 contains plastic. As the plastic, the same materials as the base material 11 can be cited. A pattern or the like can be printed on at least one main surface of the cover layer 15.

[0168] (Adhesive layer 12)

[0169] The adhesive layer 12 is provided between the substrate 11 and the intermediate layer 13 accommodating the recording member 20, and adheres the substrate 11 and the intermediate layer 13 accommodating the recording member 20 to each other. The adhesive layer 14 is provided between the intermediate layer 13 accommodating the recording member 20 and the cover layer 15, and adheres the intermediate layer 13 accommodating the recording member 20 and the cover layer 15 to each other. The adhesive layers 12 and 14 have transparency. The adhesive layers 12 and 14 each contain a heat-curable adhesive. The heat-curable adhesive contains a thermosetting resin. The thermosetting resin contains, for example, at least one selected from the group consisting of epoxy resins, polyurethane resins, etc. From the viewpoint of reducing damage to the recording member 20, the curing temperature of the heat-curable adhesive is preferably within a temperature range of 100° C. or more and 120° C. or less.

[0170] (Recording member 20)

[0171] Figure 32 is a cross-sectional view showing an embodiment of the configuration of the recording member 20. The recording member 20 is configured to be able to change the coloring state by an external stimulus. By such a change in the coloring state, for example, a pattern or the like can be recorded in the recording member 20. The external stimulus is a laser. The change in the coloring state can be a reversible change or an irreversible change. That is, the type of the recording member 20 can be a rewritable type in which a pattern or the like can be repeatedly written, or can be a one-time write type in which a pattern or the like can be written only once.

[0172] From the viewpoint of improving anti-counterfeiting performance, the change in the coloring state is preferably an irreversible change. That is, from the viewpoint of improving anti-counterfeiting performance, the type of the recording member 20 is preferably a one-time write type in which a pattern or the like can be written only once. Preferably, the recording member 20 is assembled into the receiving portion 13A of the intermediate layer 13, and the recording member 20 and the intermediate layer 13 are integrated with each other. As a result, it is possible to make it difficult to visually recognize the boundary between the recording member 20 and the intermediate layer 13 in the in-plane direction of the laminate 1. Therefore, the anti-counterfeiting performance can be improved.

[0173] The recording member 20 includes, in order, a substrate 21, an intermediate layer 32A, a color development layer 24, an intermediate layer 32B, a color development layer 27, an intermediate layer 32C, and a color development layer 30. More specifically, the recording member 20 includes, in order, a substrate 21, a pressure-sensitive adhesive layer 22, a heat-insulating layer 23, a color development layer 24, a pressure-sensitive adhesive layer 25, a heat-insulating layer 26, a color development layer 27, a pressure-sensitive adhesive layer 28, a heat-insulating layer 29, and a color development layer 30. Figure 3 As shown, the recording member 20 may further include a protective layer 31 on the color development layer 30. Figure 4 As shown, the recording member 20 may further include an intermediate layer 32D between the color development layer 30 and the protective layer 31. The heat insulating layers 23, 26, and 29 may be provided as required or may not be provided.

[0174] (Substrate 21)

[0175] The substrate 21 is a support for supporting the color development layers 24, 27 and 30. The substrate 21 preferably comprises a material having excellent heat resistance and excellent dimensional stability in the planar direction. The substrate 21 may be light-transmitting or non-light-transmitting. The substrate 21 may be, for example, a rigid substrate such as a wafer, or may be a flexible thin glass, film, paper, etc. By using a flexible substrate as the substrate 21, a flexible (bendable) recording member may be realized.

[0176] Examples of the constituent material of the substrate 21 include inorganic materials, metal materials, plastics, and the like. Inorganic materials include, for example, X ), Silicon Nitride (SiN X ), aluminum oxide (AlO X) and the like. Silicon oxide includes glass, spin-on glass (SOG), and the like. The metal material includes, for example, at least one selected from the group consisting of aluminum (Al), nickel (Ni), stainless steel, and the like. As the plastic, the same materials as the substrate 11 can be cited.

[0177] Note that a reflective layer (not shown) may be provided on at least one main surface of the substrate 21, or the substrate 21 itself may also function as the reflective layer. The substrate 21 having such a configuration enables clearer color display.

[0178] (Middle Layers 32A, 32B, 32C, and 32D)

[0179] The intermediate layer 32A is provided between the substrate 21 and the color development layer 24. The intermediate layer 32A can bond the substrate 21 and the color development layer 24 to each other. The intermediate layer 32A can be capable of thermally insulating the substrate 21 and the color development layer 24 from each other and suppressing diffusion of constituent materials between the substrate 21 and the color development layer 24. The intermediate layer 32A includes a pressure-sensitive adhesive layer 22 and a heat-insulating layer 23. The pressure-sensitive adhesive layer 22 is close to the substrate 21, and the heat-insulating layer 23 is close to the color development layer 24. Note that the intermediate layer 32A may include only the pressure-sensitive adhesive layer 22.

[0180] The intermediate layer 32B is provided between the color development layer 24 and the color development layer 27. The intermediate layer 32B may bond the color development layer 24 and the color development layer 27 to each other. The intermediate layer 32B may be able to thermally insulate the color development layer 24 and the color development layer 27 from each other and suppress diffusion of constituent materials between the color development layer 24 and the color development layer 27. The intermediate layer 32B includes a pressure-sensitive adhesive layer 25 and a heat-insulating layer 26. Note that the intermediate layer 32B may include only the pressure-sensitive adhesive layer 25.

[0181] The intermediate layer 32C is provided between the color development layer 27 and the color development layer 30. The intermediate layer 32C may bond the color development layer 27 and the color development layer 30 to each other. The intermediate layer 32C may be able to thermally insulate the color development layer 27 and the color development layer 30 from each other and suppress diffusion of constituent materials between the color development layer 27 and the color development layer 30. The intermediate layer 32C includes a pressure-sensitive adhesive layer 28 and a heat-insulating layer 29. Note that the intermediate layer 32C may include only the pressure-sensitive adhesive layer 28.

[0182] The intermediate layer 32D is provided between the color developing layer 30 and the protective layer 31. The intermediate layer 32D can bond the color developing layer 30 and the protective layer 31 to each other. The intermediate layer 32D can thermally insulate the color developing layer 30 and the protective layer 31 from each other and suppress the diffusion of the constituent materials between the color developing layer 30 and the protective layer 31. The intermediate layer 32D includes a pressure-sensitive adhesive layer 33 and a heat insulating layer 34. Note that the intermediate layer 32D may include only the pressure-sensitive adhesive layer 33.

[0183] (Color development layers 24, 27 and 30)

[0184] The coloring layers 24, 27 and 30 are configured to be able to change the coloring state by external stimuli such as laser or heat. The coloring layers 24, 27 and 30 are configured using materials that can perform stable recording and can control the coloring state. Each of the coloring layers 24, 27 and 30 contains a coloring compound with electron-donating properties, a developer with electron-accepting properties and corresponding to the coloring compound, a matrix polymer (binder) and a photothermal conversion material. Each of the coloring layers 24, 27 and 30 may contain at least one additive selected from the group consisting of, for example, a sensitizer, an ultraviolet absorber, etc. in addition to the above-mentioned materials as needed.

[0185] The coloring layers 24, 27, and 30 contain coloring compounds having coloring hues different from each other. That is, the coloring compounds contained in the coloring layers 24, 27, and 30 exhibit colors different from each other in the coloring state. The coloring compound contained in the coloring layer 24 exhibits, for example, cyan in the coloring state. The coloring compound contained in the coloring layer 27 exhibits, for example, magenta in the coloring state. The coloring compound contained in the coloring layer 30 exhibits, for example, yellow in the coloring state. The photothermal conversion materials contained in the coloring layers 24, 27, and 30 generate heat by absorbing laser beams in wavelength ranges different from each other (for example, near-infrared laser beams different from each other).

[0186] The thickness of each of the color development layers 24, 27, and 30 is preferably 1 μm or more and 20 μm or less, and more preferably 2 μm or more and 15 μm or less. When the thickness of each color development layer 24, 27, and 30 is 1 μm or more, sufficient color development density can be obtained. On the other hand, when the thickness of each color development layer 24, 27, and 30 is 20 μm or less, excessive heat utilization of each color development layer 24, 27, and 30 can be suppressed. Therefore, deterioration of color development can be suppressed.

[0187] (Coloring Compound)

[0188] The coloring compound is, for example, a leuco dye. The leuco dye may be, for example, an existing dye used for thermal paper. Specific examples thereof include compounds containing a group having an electron donating property represented by the following formula (1) in its molecule.

[0189] [Chemical formula 1]

[0190]

[0191] The coloring compound is not particularly limited and can be appropriately selected according to the purpose. In addition to the compound represented by the above formula (1), specific examples of the coloring compound include fluorocarbon compounds, triphenylmethanephthalide compounds, azaphthalide compounds, phenothiazine compounds, leucoauramine compounds, indolinophthalide compounds, etc. In addition, specific examples of the coloring compound include 2-anilino-3-methyl-6-diethylaminofluoran, 2-anilino-3-methyl-6-di(n-butylamino)fluoran, 2-anilino-3-methyl-6-(N-n-propyl-N-methylamino)fluoran, 2-anilino-3-methyl-6-(N-isopropyl-N-methylamino)fluoran, 2-anilino-3-methyl-6-(N-isobutyl-N-methylamino)fluoran, 2-anilino-3-methyl-6-(N-n-pentyl-N-methylamino)fluoran, 2-anilino-3-methyl-6-(N-sec-butyl-N-methylamino)fluoran fluoran, 2-anilino-3-methyl-6-(N-n-pentyl-N-ethylamino) fluoran, 2-anilino-3-methyl-6-(N-isopentyl-N-ethylamino) fluoran, 2-anilino-3-methyl-6-(N-n-propyl-N-isopropylamino) fluoran, 2-anilino-3-methyl-6-(N-cyclohexyl-N-methylamino) fluoran, 2-anilino-3-methyl-6-(N-ethyl-p-toluoylamino) fluoran, 2-anilino-3-methyl-6-(N-methyl-p-toluoylamino) fluoran, 2-(m-trichloromethylanilino)-3-methyl-6-diethylamino fluoran, 2-(m-trifluoromethylanilino)-3-methyl-6-diethylaminofluoran, 2-(m-trichloromethylanilino)-3-methyl-6-(N-cyclohexyl-N-methylamino)fluoran, 2-(2,4-dimethylanilino)-3-methyl-6-diethylaminofluoran, 2-(N-ethyl-p-toluidino)-3-methyl-6-(N-ethylanilino)fluoran, 2-(N-ethyl-p-toluidino)-3-methyl-6-(N-propyl-p-toluidino)fluoran, 2-anilino-6-(N-n-hexyl-N-ethylamino)fluoran, 2-(o-chloroanilino) -6-diethylaminofluoran, 2-(o-chloroanilino)-6-dibutylaminofluoran, 2-(m-trifluoromethylanilino)-6-diethylaminofluoran, 2,3-dimethyl-6-dimethylaminofluoran, 3-methyl-6-(N-ethyl-p-toluidinyl)fluoran, 2-chloro-6-diethylaminofluoran, 2-bromo-6-diethylaminofluoran, 2-chloro-6-dipropylaminofluoran, 3-chloro-6-cyclohexylaminofluoran, 3-bromo-6-cyclohexylaminofluoran, 2-chloro-6-(N-ethyl-N-isopentylamino)fluoran, 2-chloro-3-methyl-6-diethylaminofluoran,2-anilino-3-chloro-6-diethylaminofluoran, 2-(o-chloroanilino)-3-chloro-6-cyclohexylaminofluoran, 2-(m-trifluoromethylanilino)-3-chloro-6-diethylaminofluoran, 2-(2,3-dichloroanilino)-3-chloro-6-diethylaminofluoran, 1,2-benzo-6-diethylaminofluoran, 3-diethylamino-6-(m-trifluoromethylanilino)fluoran, 3-(1-ethyl-2-methylindol-3-yl)-3-(2-ethoxy-4-diethylaminophenyl)-4-azaphthalide, 3-(1-ethyl-2-methylindol-3-yl)-3-(2-ethoxy-4-diethylaminophenyl)-7-azaphthalide , 3-(1-octyl-2-methylindol-3-yl)-3-(2-ethoxy-4-diethylaminophenyl)-4-azepinephthalide, 3-(1-ethyl-2-methylindol-3-yl)-3-(2-methyl-4-diethylaminophenyl)-4-azepinephthalide, 3-(1-ethyl-2-methylindol-3-yl)-3-(2-methyl-4-diethylaminophenyl)-7-azepinephthalide, 3-(1-ethyl-2-methylindol-3-yl)-3-(4-diethylaminophenyl)-4-azepinephthalide, 3-(1-ethyl-2-methylindol-3-yl)-3-(4-diethylaminophenyl)-4-azepinephthalide, 2-(p-acetylanilino)-6-(N-n-pentyl-N-n-butylamino)fluoran, 2-benzylamino-6-(N-ethyl-p-toluinyl)fluoran, 2-benzylamino-6-(N-methyl-2,4-dimethylanilino)fluoran, 2-benzylamino-6-(N-ethyl-2,4-dimethylanilino)fluoran, 2-benzylamino-6-(N-methyl-2,4-dimethylanilino)fluoran, 2-benzylamino-6-(N-ethyl-2,4-dimethylanilino)fluoran, 2-benzylamino-6-(N-methyl-p-toluinyl)fluoran fluoran, 2-benzylamino-6-(N-ethyl-p-toluidinyl)fluoran, 2-(di-p-methylbenzylamino)-6-(N-ethyl-p-toluidinyl)fluoran, 2-(α-phenylethylamino)-6-(N-ethyl-p-toluidinyl)fluoran, 2-methylamino-6-(N-methylanilino)fluoran, 2-methylamino-6-(N-ethylanilino)fluoran, 2-methylamino-6-(N-ethylanilino)fluoran, 2-methylamino-6-(N-propylanilino)fluoran, 2-ethylamino-6-(N-methyl-p-toluidinyl)fluoran, 2-methylamino-6-(N-methyl-2,4-dimethylanilino)fluoran, 2-ethylamino-6-(N-ethyl-2,4-dimethylanilino)fluoran,2-dimethylamino-6-(N-methylanilino)fluoran, 2-dimethylamino-6-(N-ethylanilino)fluoran, 2-diethylamino-6-(N-methyl-p-toluidinyl)fluoran, 2-diethylamino-6-(N-ethyl-p-toluidinyl)fluoran, 2-dipropylamino-6-(N-methylanilino)fluoran, 2-dipropylamino-6-(N-ethylanilino)fluoran, 2-amino- 6-(N-methylanilino)fluoran, 2-amino-6-(N-ethylanilino)fluoran, 2-amino-6-(N-propylanilino)fluoran, 2-amino-6-(N-methyl-p-toluinol)fluoran, 2-amino-6-(N-ethyl-p-toluinol)fluoran, 2-amino-6-(N-propyl-p-toluinol)fluoran, 2-amino-6-(N-methyl-p-ethylanilino)fluoran, 2- Amino-6-(N-ethyl-p-ethylanilino)fluoran, 2-amino-6-(N-propyl-p-ethylanilino)fluoran, 2-amino-6-(N-methyl-2,4-dimethylanilino)fluoran, 2-amino-6-(N-ethyl-2,4-dimethylanilino)fluoran, 2-amino-6-(N-propyl-2,4-dimethylanilino)fluoran, 2-amino-6-(N-methyl-p-chloroanilino)fluoran 1,2-benzo-6-(N-ethyl-N-isopentylamino)fluoran, 1,2-benzo-6-dibutylaminofluoran, 1,2-benzo-6-(N-methyl-N-cyclohexylamino)fluoran, 1,2-benzo-6-(N-ethyl-N-toluamino)fluoran, etc. Each of the coloring layers 24, 27 and 30 may contain one of the above-mentioned coloring compounds alone or may contain two or more types thereof.

[0192] <Developer>

[0193] The developer is used, for example, to develop a colorless coloring compound. The developer may have a particle form. The developer contains, for example, at least one selected from the group consisting of a phenol derivative, a salicylic acid derivative, a urea derivative, etc. Specifically, the developer contains, for example, a hydroxybenzoic acid type compound represented by the following formula (2), which contains a group having an electron accepting property in its molecule. The hydroxybenzoic acid type compound may be a bis(hydroxybenzoic acid) type compound.

[0194] [Chemical formula 2]

[0195]

[0196] (Note that X is any of -NHCO-, -CONH-, -NHCONH-, -CONHCO-, -NHNHCO-, -CONHNH-, -CONHNHCO-, -NHCOCONH-, -NHCONHCO-, -CONHCONH-, -NHNHCONH-, -NHCONHNH-, -CONHNHCONH-, -NHCONHNH-, -CONHNHCONH-, -NHCONHNHCO-, and -CONHNHCONH-. R is a straight chain hydrocarbon group having 25 or more and 34 or less carbon atoms.)

[0197] The bonding positions of the hydroxyl group (-OH), carboxyl group (-COOH) and -XR group in formula (2) are not limited. For example, a hydroxybenzoic acid type compound may have a structure in which the hydroxyl group and carboxyl group are bonded to the ortho position of benzene (ie, salicylic acid skeleton).

[0198] The developer may contain a compound represented by the following formula (3). The compound represented by formula (3) may be used alone or in combination with another compound, for example, a hydroxybenzoic acid type compound represented by the above formula (2) or the like.

[0199] [Chemical formula 3]

[0200]

[0201] (Note that in formula (3), X 0 Is a divalent group containing at least one benzene ring. 01 and Y 02 Each is independently a monovalent group. n01 and n02 are each independently an integer from 0 to 5. In the case where n01 is an integer from 2 to 5, Y 01 They may be the same as or different from each other. When n02 is an integer from 2 to 5, Y 02 Can be the same or different from each other. 01 and Z 02 Each is independently a hydrogen bonding group.

[0202] In X 0 Contains at least one benzene ring, and X 0 Compared with the case where X is an aliphatic hydrocarbon group (e.g., a normal alkyl chain), the melting point can be increased, and thus the color retention property during high temperature and high humidity storage (hereinafter, referred to as "high temperature and high humidity storage property") can be improved. From the viewpoint of improving high temperature and high humidity storage property and heat resistance, X 0 It is preferred to contain at least two benzene rings. The high temperature and high humidity storage characteristics are, for example, storage characteristics under an environment of 80°C and 60%RH. The improvement in heat resistance leads to an improvement in the resistance of the recording member 20 to severe processes (e.g., hot pressing, integral molding using molten resin, etc.).0 In the case of containing at least two benzene rings, the at least two benzene rings may be fused. 0 It may be naphthalene, anthracene, etc.

[0203] In Z 01 and Z 02 In the case where each is independently a hydrogen bonding group, a developer may be present when aggregated to some extent by hydrogen bonding, thereby improving the stability of the developer in the color development layers 24, 27, and 30. In this specification, a hydrogen bonding group refers to a functional group containing an atom that can hydrogen bond with an atom present in another functional group, another compound, or the like.

[0204] The developer preferably contains a compound represented by the following formula (4):

[0205] [Chemical formula 4]

[0206]

[0207] (Note that in formula (4), X 1 Y is a divalent group containing at least one benzene ring. 11 , Y 12 , Y 13 and Y 14 Each is independently a monovalent group. 11 and Z 12 are each independently a hydrogen bonding group. )

[0208] X 1 Contains at least one benzene ring, and X 1 Compared with the case where X is an aliphatic hydrocarbon group (e.g., a normal alkyl chain), the melting point can be increased, and thus the high temperature and high humidity storage characteristics can be improved. From the viewpoint of improving the high temperature and high humidity storage characteristics and heat resistance, X 1 Preferably contains at least two benzene rings. 1 In the case of containing at least two benzene rings, the at least two benzene rings may be fused. 1 It may be naphthalene, anthracene, etc.

[0209] Z 11 and Z 12 Each independently being a hydrogen bonding group allows the developer to easily appear when aggregated to a certain extent by hydrogen bonding, and thus the stability of the developer in the color development layers 24 , 27 , and 30 is improved.

[0210] In the case where formula (3) and formula (4) each contain a hydrocarbon group, the hydrocarbon group is a general term for a group containing carbon (C) and hydrogen (H), and may be a saturated hydrocarbon group or an unsaturated hydrocarbon group. A saturated hydrocarbon group is an aliphatic hydrocarbon group having no carbon-carbon multiple bonds, and an unsaturated hydrocarbon group is an aliphatic hydrocarbon group having carbon-carbon multiple bonds (carbon-carbon double bonds or carbon-carbon triple bonds).

[0211] In the case where formula (3) and formula (4) each contain a hydrocarbon group, the hydrocarbon group may be in a chain form or may include one or more rings. The chain form may be a straight chain form or may be a branched chain form having one or more side chains or the like.

[0212] (X 0 and X 1 Each contains a benzene ring)

[0213] X in formula (3) 0 and X in formula (4) 1 Each is, for example, a divalent group containing one benzene ring. The divalent group is represented by, for example, the following formula (5):

[0214] [Chemical formula 5]

[0215]

[0216] (Note that in formula (5), X 21 may or may not exist, and when X 21 When X exists, 21 Is a divalent group. 22 may or may not exist, and when X 22 When X exists, 22 Is a divalent group. 21 is a monovalent group. n21 is an integer from 0 to 4. When n21 is an integer from 2 to 4, R 21 They may be the same or different from each other. The symbol * indicates a binding moiety. )

[0217] In formula (5), X on the benzene ring 21 and X 22 The bonding position of X is not restricted. 21 and X 22 The bonding position on the benzene ring may be any of the ortho, meta and para positions.

[0218] From the viewpoint of improving high temperature and high humidity storage characteristics, the above-mentioned divalent group containing one benzene ring is preferably represented by the following formula (6):

[0219] [Chemical formula 6]

[0220]

[0221] (Note that in formula (6), R 22 is a monovalent group. n22 is an integer from 0 to 4. In the case where n22 is an integer from 2 to 4, R 22 They may be the same or different from each other. The symbol * indicates a binding moiety. )

[0222] In formula (3), X 0 When it is a divalent group containing one benzene ring, Z on the benzene ring in formula (6) 01 and Z 02 The bonding position of Z is not restricted. 01 and Z 02 The bonding position of may be any one of the ortho, meta and para positions.

[0223] In formula (4), X 1 When it is a divalent group containing one benzene ring, Z on the benzene ring in formula (6) 11 and Z 12 The bonding position of Z is not restricted. 11 and Z 12 The bonding position on the benzene ring may be any of the ortho, meta and para positions.

[0224] (X 21 and X 22 )

[0225] X in formula (5) 21 and X 22 It is only necessary that each independently is a divalent group without limitation, and its embodiment includes a hydrocarbon group optionally having a substituent. The hydrocarbon group is preferably in a chain form. Through the chain hydrocarbon group, the melting point of the developer can be reduced, and thus the developer melts by irradiation with laser, and the coloring compound is easy to develop color. From the viewpoint of reducing the melting point of the developer, a normal alkyl chain is particularly preferred in the chain hydrocarbon group.

[0226] The number of carbon atoms of the hydrocarbon group which may have a substituent is, for example, 1 to 15, 1 to 13, 1 to 12, 1 to 10, 1 to 6, or 1 to 3.

[0227] In formula (5), X 21 and X 22In the case of a normal alkyl group, from the viewpoint of high temperature storage stability, the number of carbon atoms of the normal alkyl group is preferably 8 or less, more preferably 6 or less, more preferably 5 or less, and particularly preferably 3 or less. It is believed that in the case where the number of carbon atoms of the normal alkyl group is 8 or less, due to the short length of the normal alkyl group, thermal disturbance is less likely to occur in the developer during high temperature storage, and the site that interacts with the coloring compound such as the leuco dye is less likely to be separated during color development. Therefore, during high temperature storage, the coloring compound such as the leuco dye is less likely to decolorize, thereby improving the high temperature storage stability.

[0228] Examples of the substituent which the hydrocarbon group may optionally have include a halogen group (e.g., a fluoro group), an alkyl group having a halogen group (e.g., a fluoro group), etc. The hydrocarbon group which may optionally have a substituent may be a hydrocarbon group obtained by replacing some carbon atoms of the hydrocarbon group (e.g., some carbon atoms included in the main chain of the hydrocarbon group) with an element such as oxygen.

[0229] (R 21 )

[0230] R in formula (5) 21 It only needs to be a monovalent group without limitation, and examples thereof include a halogen group and a hydrocarbon group optionally having a substituent.

[0231] The halogen group is, for example, fluoro (—F), chloro (—Cl), bromo (—Br) or iodo (—I).

[0232] The number of carbon atoms of the hydrocarbon group which may have a substituent is, for example, 1 to 15, 1 to 13, 1 to 12, 1 to 10, 1 to 6, or 1 to 3.

[0233] Examples of the substituent which the hydrocarbon group may optionally have include a halogen group (e.g., a fluoro group), an alkyl group having a halogen group (e.g., a fluoro group), etc. The hydrocarbon group which may optionally have a substituent may be a hydrocarbon group obtained by replacing some carbon atoms of the hydrocarbon group (e.g., some carbon atoms included in the main chain of the hydrocarbon group) with an element such as oxygen.

[0234] (R 22 )

[0235] R in formula (6) 22 It only needs to be a monovalent group without limitation, and examples thereof include a halogen group and a hydrocarbon group optionally having a substituent. The halogen group and the hydrocarbon group optionally having a substituent are each similar to R in the above formula (3). 21 situation.

[0236] (X 0 and X 1 Each contains two benzene rings)

[0237] X in formula (3)0 and X in formula (4) 1 Each is, for example, a divalent group containing two benzene rings. The divalent group is represented by, for example, the following formula (7):

[0238] [Chemical formula 7]

[0239]

[0240] (It should be noted that in formula (7), X 31 may or may not exist, and when X 31 When present, X 31 Is a divalent group. 32 may or may not exist, and when X 32 When present, X 32 Is a divalent group. 33 may or may not exist, and when X 33 When present, X 33 Is a divalent group. 31 and R 32 Each is independently a monovalent group. n31 and n32 are each independently an integer from 0 to 4. In the case where n31 is an integer from 2 to 4, R 31 They may be the same as or different from each other. When n32 is an integer from 2 to 4, R 32 They may be the same or different from each other. The symbol * indicates a binding moiety. )

[0241] In formula (7), X 31 and X 32 The bonding position on the benzene ring is not restricted. 31 and X 32 The bonding position on the benzene ring can be any one of the ortho, meta and para positions. Similarly, in formula (7), X 32 and X 33 The bonding position on the benzene ring is not restricted. 32 and X 33 The bonding position on the benzene ring may be any of the ortho, meta and para positions.

[0242] From the viewpoint of improving high temperature and high humidity storage characteristics, the above-mentioned divalent group containing two benzene rings is preferably represented by the following formula (8):

[0243] [Chemical formula 8]

[0244]

[0245] (Note that in formula (8), X 34 Is a divalent group. 33 and R 34Each is independently a monovalent group. n33 and n34 are each independently an integer from 0 to 4. In the case where n33 is an integer from 2 to 4, R 33 They may be the same as or different from each other. When n34 is an integer from 2 to 4, R 34 They may be the same or different from each other. The symbol * indicates a binding moiety. )

[0246] In formula (3), X 0 In the case of a divalent group containing two benzene rings, Z on the benzene ring in formula (8) 01 and X 34 The bonding position of Z is not restricted. 01 and X 34 The bonding position of can be any one of the ortho, meta and para positions. Similarly, in formula (8), Z on the benzene ring 02 and X 34 The bonding position of Z is not restricted. 02 and X 34 The bonding position of may be any one of the ortho, meta and para positions.

[0247] In formula (4), X 1 When it is a divalent group containing two benzene rings, Z on the benzene ring in formula (8) 11 and X 34 The bonding position of Z is not restricted. 11 and X 34 The bonding position on the benzene ring can be any one of the ortho, meta and para positions. Similarly, in formula (8), Z 12 and X 34 The bonding position on the benzene ring is not restricted. 12 and X 34 The bonding position on the benzene ring may be any of the ortho, meta and para positions.

[0248] (X 31 , X 32 , and X 33 )

[0249] X in formula (7) 31 , X 32 and X 33 Each of them need only be independently a divalent group without limitation, and examples thereof include a hydrocarbon group optionally having a substituent. The hydrocarbon group is similar to X in the above formula (5). 21 and X 22 Those.

[0250] (X 34 )

[0251] X in formula (8)34 It only needs to be a divalent group without limitation, and examples thereof include a hydrocarbon group optionally having a substituent. The hydrocarbon group is similar to X in the above formula (5). 21 and X 22 Those.

[0252] (R 31 and R 32 )

[0253] R in formula (7) 31 and R 32 Each only needs to be a monovalent group without limitation, and examples thereof include a halogen group and a hydrocarbon group optionally having a substituent. The halogen group and the hydrocarbon group optionally having a substituent are similar to R in the above formula (5). 21 content.

[0254] (R 33 and R 34 )

[0255] R in formula (8) 33 and R 34 Each only needs to be a monovalent group without limitation, and examples thereof include a halogen group and a hydrocarbon group optionally having a substituent. The halogen group and the hydrocarbon group optionally having a substituent are similar to R in the above formula (5). 21 content.

[0256] (Y 01 and Y 02 )

[0257] Y in formula (3) 01 and Y 02 Each independently represents, for example, a hydrogen group (—H), a hydroxyl group (—OH), a halogen group (—X), a carboxyl group (—COOH), an ester group (—COOR), or a hydrocarbon group which may have a substituent.

[0258] The halogen group is, for example, fluoro (—F), chloro (—Cl), bromo (—Br) or iodo (—I).

[0259] The number of carbon atoms of the hydrocarbon group which may have a substituent is, for example, 1 to 15, 1 to 13, 1 to 12, 1 to 10, 1 to 6, or 1 to 3.

[0260] Examples of the substituent that the hydrocarbon group may optionally have include a halogen group (e.g., a fluoro group), an alkyl group having a halogen group (e.g., a fluoro group), etc. The hydrocarbon group that may optionally have a substituent may be a hydrocarbon group obtained by replacing some carbon atoms of the hydrocarbon group (e.g., some carbon atoms included in the main chain of the hydrocarbon group) with an element such as oxygen.

[0261] In formula (3), (Y01 ) n01 One and / or (Y 02 ) n02 One of them is preferably a hydroxyl group (-OH). 01 ) n01 One of and / or (Y 02 ) n02 When one of the groups is a hydroxyl group (-OH), display quality and light resistance can be improved.

[0262] (Y 11 , Y 12 , Y 13 and Y 14 )

[0263] In formula (4), Y 11 and Y 12 The bonding position on the benzene ring is not limited. 11 and Y 12 The bonding position on the benzene ring can be any one of the ortho, meta and para positions. Similarly, in formula (4), Y 13 and Y 14 The bonding position on the benzene ring is not restricted. 13 and Y 14 The bonding position of can be any one of the ortho, meta and para positions. In formula (4), Y 11 and Y 12 The bonding position on a benzene and Y 13 and Y 14 The bonding position on the other benzene may be the same or different.

[0264] Y in formula (4) 11 , Y 12 , Y 13 and Y 14 Each independently represents, for example, a hydrogen group (—H), a hydroxyl group (—OH), a halogen group, a carboxyl group (—COOH), an ester group (—COOR), or a hydrocarbon group optionally having a substituent. Each of the halogen group and the hydrocarbon group optionally having a substituent is similar to Y in the above formula (3). 01 and Y 02 content.

[0265] In formula (4), Y 11 and / or Y 13 Preferably it is hydroxyl group (-OH). 11 and / or Y 13 In the case of a hydroxyl group (-OH), display quality and light resistance can be improved.

[0266] (Z 01 and Z 02 )

[0267] Z in formula (3) 01 and Z 02 Each independently is, for example, a urea bond (-NHCONH-), an amide bond (-NHCO- or -OCHN-), or a hydrazide bond (-NHCOCONH-). From the viewpoint of improving high temperature and high humidity storage characteristics, Z 01 and Z 02 Preferably, it is a urea bond. 01 In the case of an amide bond, the nitrogen included in the amide bond may be bonded to benzene, or the carbon included in the amide bond may be bonded to benzene. 02 In the case of an amide bond, nitrogen included in the amide bond may be bonded to benzene, or carbon included in the amide bond may be bonded to benzene.

[0268] (Z 11 and Z 12 )

[0269] Z in formula (4) 11 and Z 12 Each independently is, for example, a urea bond (-NHCONH-), an amide bond (-NHCO- or -OCHN-), or a hydrazide bond (-NHCOCONH-). From the viewpoint of improving high temperature and high humidity storage characteristics, Z 11 and Z 12 Preferably, it is a urea bond. 11 In the case of an amide bond, the nitrogen included in the amide bond may be bonded to benzene, or the carbon included in the amide bond may be bonded to benzene. 12 In the case of an amide bond, nitrogen included in the amide bond may be bonded to benzene, or carbon included in the amide bond may be bonded to benzene.

[0270] (Specific Examples of Developer)

[0271] Where X in formula (3) 0 and X in formula (4) 1 The developers each containing a benzene ring specifically contain, for example, at least one selected from the group consisting of compounds represented by the following formulae (9-1) to (9-6).

[0272] [Chemical formula 9]

[0273]

[0274] Where X in formula (3) 0 and X in formula (4) 1 The developers each containing two benzene rings specifically contain at least one selected from the group consisting of compounds represented by the following formulae (10-1) to (10-8).

[0275] [Chemical formula 10]

[0276]

[0277] (Matrix polymer)

[0278] The matrix polymer (matrix resin) preferably has a function as a binder. The matrix polymer is preferably a matrix polymer in which a coloring compound, a developer and a photothermal conversion material may be uniformly dispersed. The matrix polymer is, for example, at least one selected from the group consisting of a thermosetting resin and a thermoplastic resin. Specifically, the matrix polymer is, for example, at least one selected from the group consisting of: polyvinyl chloride resins, polyvinyl acetate resins, vinyl chloride-vinyl acetate copolymer resins, ethyl cellulose resins, polystyrene resins, styrene copolymer resins, phenoxy resin resins, polyester resins, aromatic polyester resins, polyurethane resins, polycarbonate resins, polyacrylate resins, polymethacrylate resins, acrylic copolymer resins, maleic acid polymer resins, polyvinyl alcohol resins, modified polyvinyl alcohol resins, hydroxyethyl cellulose resins, carboxymethyl cellulose resins, starch, etc.

[0279] The matrix polymer preferably contains a polycarbonate resin. By using a matrix polymer containing a polycarbonate resin, the light resistance of the background of the recording member 20 can be improved. Herein, a polycarbonate resin is a resin having a carbonate group (-O-(C=O)-O-) as a structural unit at least in its main chain. Therefore, in addition to the carbonate group, other structural units may be included in the main chain.

[0280] The ratio of the developer to the total amount of the developer and the base resin is preferably 16% by mass or less. When the ratio of the developer is 16% by mass or less, the adhesion between the color development layers 24, 27 and 30 and the layers adjacent to the color development layers 24, 27 and 30 (particularly, the heat insulation layers 23, 26 and 29) can be improved.

[0281] The ratio of the developer to the total amount of the developer and the base resin is measured as follows. The composition of the developer and the base polymer in the color development layer is measured by mapping using a Fourier transform infrared spectrophotometer (micro FTIR). Alternatively, the composition is calculated by measuring the weight while dissolving each color development layer 24, 27, and 30 in an appropriate organic solvent using the solubility difference between the developer and the base polymer.

[0282] From the viewpoint of improving the adhesion between the color development layers 24, 27 and 30 and the layers adjacent to the color development layers 24, 27 and 30 (especially, the heat insulating layers 23, 26 and 29), the content of the base polymer in each of the color development layers 24, 27 and 30 is preferably 84% by mass or more. From the viewpoint of suppressing the reduction in the color development of the color development layers 24, 27 and 30, the content of the base polymer is preferably 50% by mass or more and 70% by mass or less, and more preferably 58% by mass or more and 65% by mass or less. In the case where the content of the base polymer is 50% by mass or more and 70% by mass or less, it is preferred to select the layer adjacent to the color development layers 24, 27 and 30 to obtain good adhesion.

[0283] The content of the base polymer in each color development layer 24, 27 and 30 is measured as follows. The composition of the developer and the base polymer in each of the color development layers 24, 27 and 30 is measured by performing mapping using a Fourier transform infrared spectrophotometer (micro FTIR). Alternatively, the composition is calculated by measuring the weight while dissolving each color development layer 24, 27 and 30 in an appropriate organic solvent using the solubility difference between the components in the color development layers 24, 27 and 30.

[0284] (Photothermal conversion materials)

[0285] For example, the photothermal conversion material generates heat by absorbing light in a predetermined wavelength region such as a near-infrared region. As a photothermal conversion material, for example, it is preferred to use a near-infrared absorbing dye having an absorption peak in a wavelength range of 700 nm to 2000 nm and having almost no absorption in the visible region. The photothermal conversion material is specifically, for example, selected from at least one of the groups consisting of a compound having a phthalocyanine skeleton (phthalocyanine dye), a compound having a squarylium skeleton (squarylium dye), an inorganic compound, etc. The inorganic compound is, for example, selected from at least one of the groups consisting of a metal complex such as a disulfide complex, a diimmonium salt, an ammonium salt, an inorganic compound, etc. The inorganic compound is, for example, selected from at least one of the groups consisting of the following: graphite, carbon black, metal powder particles, metal oxides such as cobalt tetraoxide, iron oxide, chromium oxide, copper oxide, titanium black, and indium tin oxide (ITO), metal nitrides such as niobium nitride, metal carbides such as tantalum carbide, metal sulfides, various magnetic powders, etc. In addition, a compound having a cyanine skeleton (cyanine dye) having excellent light resistance and heat resistance can be used. In addition, the excellent light resistance mentioned here means that it will not decompose due to light irradiation of fluorescent lamps, etc. under the use environment. Excellent heat resistance means that, for example, the maximum absorption peak of the absorption spectrum of the film formed together with the polymer material will not change by more than 20% after being stored at 150°C for 30 minutes. Examples of such compounds having a cyanine skeleton include compounds having SbF in their molecules. 6 PF 6 , BF4 , ClO 4 CF 3 SO 3 or (CF 3 SO 3 ) 2 N or a compound having at least one of a counter ion of any one of 5-membered ring or 6-membered ring methine chain. Note that although the compound having a cyanine skeleton used for the recording member 20 in the laminate 1 preferably has both any one of the above counter ions and a cyclic structure such as a 5-membered ring or 6-membered ring in the methine chain, sufficient light resistance and heat resistance are ensured as long as the compound has at least one of the counter ion or the cyclic structure.

[0286] It should be noted that as the photothermal conversion material, for example, a photothermal conversion material in which the light absorption band is narrow in the wavelength range of 700 nm to 2000 nm and the light absorption bands of the color development layers 24, 27, and 30 do not overlap with each other is preferably selected. As a result, a desired layer among the color development layers 24, 27, and 30 can be selectively colored.

[0287] (Thermal insulation layers 23, 26, 29, 34)

[0288] The heat insulating layer 23 is provided between the substrate 21 and the color developing layer 24, and the substrate 21 and the color developing layer 24 are heat-insulated from each other. The heat insulating layer 26 is provided between the color developing layer 24 and the color developing layer 27, and the color developing layer 24 and the color developing layer 27 are heat-insulated from each other. The heat insulating layer 29 is provided between the color developing layer 27 and the color developing layer 30, and the color developing layer 27 and the color developing layer 30 are heat-insulated from each other. The heat insulating layer 34 is provided between the color developing layer 30 and the protective layer 31, and the color developing layer 30 and the protective layer 31 are heat-insulated from each other. The heat insulating layers 23, 26, 29, 34 are composed of, for example, a general light-transmitting polymer material. The specific material is, for example, at least one selected from the group consisting of acrylic resin, polyvinyl chloride resin, polyvinyl acetate resin, vinyl chloride-vinyl acetate copolymer resin, ethyl cellulose resin, polystyrene resin, styrene resin copolymer resin, phenoxy resin resin, polyester resin, aromatic polyester resin, polyurethane resin, polycarbonate resin, polyacrylate resin, polymethacrylate resin, acrylic copolymer resin, maleic acid polymer resin, polyvinyl alcohol resin, modified polyvinyl alcohol resin, hydroxyethyl cellulose resin, carboxymethyl cellulose resin, starch, etc. Note that the heat insulating layers 23, 26, 29, 34 may contain various additives such as ultraviolet absorbers.

[0289] The heat-insulating layers 23, 26, 29 and 34 may each be an ultraviolet curable resin layer. The ultraviolet curable resin layer comprises an ultraviolet curable resin composition cured by a polymerization reaction. More specifically, for example, the ultraviolet curable resin layer comprises a polymer of a polymerizable compound and a polymerization initiator, the structure of which is changed by generating an active substance by irradiation with external energy (ultraviolet rays). The ultraviolet curable resin composition contains, for example, at least one selected from the group consisting of an ultraviolet curable resin composition of free radical polymerization, an ultraviolet curable resin composition of cationic polymerization, and the like. As required, the ultraviolet curable resin composition may include at least one selected from the group consisting of a sensitizer, a filler, a stabilizer, a leveling agent, a defoamer, a viscosity modifier, and the like. The ultraviolet curable resin composition may be an ultraviolet curable resin composition for a hard coat. The ultraviolet curable resin composition may be an acrylic ultraviolet curable resin composition.

[0290] The heat insulating layers 23, 26, 29 and 34 may contain a light-transmitting inorganic material. For example, when porous silica, alumina, titanium dioxide, carbon, a composite thereof, etc. are used, thermal conductivity is reduced and the heat insulating effect is high, which is preferred. The heat insulating layers 23, 26, 29 can be formed, for example, by a sol-gel method.

[0291] By adjusting the thickness of the heat insulating layers 23, 26, 29 and 34, the thickness of the recording member 20 can be made equal to the thickness of the intermediate layer 13, and the occurrence of physical height difference can be suppressed. The thickness of the heat insulating layers 23, 26, 29, 34 is preferably 3 μm or more and 100 μm or less, more preferably 5 μm or more and 50 μm or less. If the thickness of the heat insulating layers 23, 26, 29, 34 is 3 μm or more, a sufficient heat insulating effect can be obtained. On the other hand, if the thickness of each heat insulating layer 23, 26, 29, 34 is 100 μm or less, the deterioration of light transmittance can be suppressed. In addition, the reduction in the bending resistance of the recording member 20 can be suppressed and defects such as cracks are less likely to occur.

[0292] The pencil hardness of the surface of the heat insulating layers 23, 26, 29, 34 is preferably 2B or more, more preferably H or more. When the pencil hardness of each surface of the heat insulating layers 23, 26, 29, and 34 is 2B or more, the density of each of the heat insulating layers 23, 26, 29, and 34 is high, and the diffusion of substances through the intermediate layers 32A, 32B, 32C, and 32D can be further suppressed. For example, in the case where the pencil hardness of the surface of the heat insulating layers 26, 29 is 2B or more, the diffusion of the coloring compound through the intermediate layers 32B, 32C can be further suppressed. Therefore, the change in the color tone of each color developing layer 24, 27, and 30 during long-term storage can be further suppressed. As each heat insulating layer 23, 26, 29, 34 having the above-mentioned pencil hardness, an ultraviolet curable resin layer is preferred.

[0293] The pencil hardness of the surface of the heat insulating layer 23 is measured as follows. First, the laminate 1 is decomposed to expose the surface of the heat insulating layer 23. Next, the pencil hardness of the surface of the heat insulating layer 23 is measured in accordance with JIS K5600-5-4. The measurement is performed in an atmosphere of a standard state of a temperature of 23±1°C and a relative humidity of 50±5%. The pencil hardness of each surface of the heat insulating layers 26, 29, and 34 is also measured in the same order as the pencil hardness of the surface of the heat insulating layer 23.

[0294] (Pressure-Sensitive Adhesive Layers 22, 25, 28 and 33)

[0295] The pressure-sensitive adhesive layer 22 is disposed between the substrate 21 and the heat-insulating layer 23, and the substrate 21 and the heat-insulating layer 23 are bonded to each other. The pressure-sensitive adhesive layer 25 is disposed between the color-developing layer 24 and the heat-insulating layer 26, and the color-developing layer 24 and the heat-insulating layer 26 are bonded to each other. The pressure-sensitive adhesive layer 28 is disposed between the color-developing layer 27 and the heat-insulating layer 29, and the color-developing layer 27 and the heat-insulating layer 29 are bonded to each other. The pressure-sensitive adhesive layer 33 is disposed between the color-developing layer 30 and the heat-insulating layer 34, and the color-developing layer 30 and the heat-insulating layer 34 are bonded to each other. In the case where the recording member 20 does not include the heat-insulating layer 23, the pressure-sensitive adhesive layer 22 bonds the substrate 21 and the color-developing layer 24 to each other. In this case, the pressure-sensitive adhesive layer 22 may have a function as a heat-insulating layer and / or a diffusion-preventing layer. In the case where the recording member 20 does not include the heat-insulating layer 26, the pressure-sensitive adhesive layer 25 bonds the color-developing layer 24 and the color-developing layer 27 to each other. In this case, the pressure-sensitive adhesive layer 25 may have a function as a heat-insulating layer and / or an anti-diffusion layer. In the case where the recording member 20 does not include the heat-insulating layer 29, the pressure-sensitive adhesive layer 28 bonds the color-developing layer 27 and the color-developing layer 30 to each other. In this case, the pressure-sensitive adhesive layer 28 may have a function as a heat-insulating layer and / or an anti-diffusion layer. In the case where the recording member 20 does not include the heat-insulating layer 34, the pressure-sensitive adhesive layer 33 bonds the color-developing layer 30 and the protective layer 31 to each other. In this case, the pressure-sensitive adhesive layer 33 may have a function as a heat-insulating layer and / or an anti-diffusion layer. In this specification, the term "and / or" means "at least one", and for example, in the case where the term is used in the phrase "X and / or Y", the phrase refers to three cases of "only X", "only Y" and "X and Y".

[0296] Each of the pressure-sensitive adhesive layers 22, 25, 28, and 33 contains a pressure-sensitive adhesive. The pressure-sensitive adhesive contains, for example, at least one selected from the group consisting of acrylic resin, silicone resin, urethane resin, epoxy resin, and elastomer material.

[0297] (Protective layer 31)

[0298] The protective layer 31 is used to protect the surface of the recording member 20 and is formed using, for example, at least one of an ultraviolet curable resin or a thermosetting resin. The protective layer 31 is preferably a hard coat layer. The thickness of the protective layer 31 is, for example, 0.1 μm or more and 20 μm or less.

[0299] (Average peel strength between layers)

[0300] The average peel strength at the interface between the layers constituting the laminate 1 is preferably 3.5 N / cm or more, more preferably 4.0 N / cm or more, still more preferably 4.5 N / cm or more, and particularly preferably 5.0 N / cm or more. By having an average peel strength of 3.5 N / cm or more at the interlayer interface, peeling at the interlayer interface constituting the laminate 1 can be suppressed. Therefore, the anti-counterfeiting performance and anti-tampering performance of the laminate 1 can be improved. Here, the layer constituting the laminate 1 may include a layer constituting the recording member 20.

[0301] The average peel strength at the interface between the layers is obtained by performing a 90 degree peel test. The average peel strength at the interface of each layer is determined in the same manner, so refer to Figure 5 Only the method for measuring the average peel strength of the interface between the heat-insulating layer 26 and the color-developing layer 27 will be described.

[0302] First, the laminate 1 is cut into a strip having a width of 10 mm and a length of 100 mm to prepare a test piece 60, and the test piece 60 is placed in an atmosphere under a standard state at a temperature of 23±1° C. and a relative humidity of 50±5% for 24 hours or longer. Note that in the case of measuring the average peel strength at the interface included in the recording member 20, the test piece 60 is cut to include the recording member 20. Hereinafter, in the test piece 60, the laminate on the lower side of the interface between the heat insulating layer 26 and the color developing layer 27 is referred to as an adherend 60A, and the laminate on the upper side of the interface is referred to as an adherend 60B (see Figure 3 ). Next, at one end of the length direction of the sample 60, the part between the adherend 60A and the adherend 60B is cut off by a sharp blade such as a cutter, and the adherend 60B is peeled off 20mm in the length direction to make a gripping edge. Afterwards, the surface of the adherend 60A side of the test piece 60 is fixed to the test bench 71 using a strong pressure-sensitive adhesive. As a pressure-sensitive adhesive, a pressure-sensitive adhesive with sufficiently high pressure-sensitive adhesive force is selected, for example, the strong pressure-sensitive adhesive tape Scotch (registered trademark) manufactured by 3M makes it possible for the sample 60 to not be peeled off from the test bench 71 when measuring the peel strength between the heat insulating layer 26 and the color developing layer 27.

[0303] Next, one end of the stretching member 61 is bonded to the surface of the color developing layer 27 side of the adherend 60B. As the stretching member 61, a strip film that does not cause elongation or breakage during the measurement of the peel strength and has sufficient strength is used. In addition, one end of the stretching member 61 is bonded to the adherend 60B with a sufficiently high pressure-sensitive adhesive force so that the stretching member 61 is not peeled off from the adherend 60A during the measurement of the peel strength. Figure 5 Although the tension member 61 is shown as an example of the holding margin, if the position where the adherend 60B is clamped by the clamping device (metal plate) 62 has a sufficient stroke, the adherend 60B may be clamped directly without using the tension member 61 .

[0304] Next, the clamping edge of the tensile member 61 is inserted between a set of movable rollers 73A and 73B of the clamp 72, and then clamped and fixed by more than 10 mm by the clamping device (metal plate) 62 of the tensile compression tester SV-55C 2H manufactured by IMADA-SS Corporation. In the 90-degree peel test, the movable rollers 73A and 73B are used as fulcrums for peeling. Next, a 90-degree peel test is performed using a tensile compression tester, and the test force [N / 10mm] and stroke [mm] are monitored in terms of voltage value by a data recorder such as that manufactured by Keyence Corporation, and the voltage value is converted into force and stored in a memory as CSV output data. In addition, the above-mentioned 90-degree peel test is performed at a tensile speed of 5mm / second under standard conditions of temperature 23±1°C and relative humidity 50±5%. The stroke is set to 50mm or greater.

[0305] The above 90-degree peel test was performed three times in total, and the point where the peel strength was stable (the position where the force rose gently) was taken as the starting point (0 mm), and the CSV output data up to the position at a relative distance of 50 mm from the starting point were arithmetic averaged to calculate the average value. Thus, the average peel strength of the heat insulating layer 26 and the color developing layer 27 was obtained. Note that in the case where there is a point (spike) where the peel force suddenly decreases in the CSV output data, the average peel strength excluding the point (spike) is calculated.

[0306] The average value of the minimum peel strength among the peel strengths between the layers constituting the laminate 1 is preferably 3.5 N / cm or more, more preferably 4.0 N / cm or more, still more preferably 4.5 N / cm or more, and particularly preferably 5.0 N / cm or more. By making the average value of the minimum peel strength 3.5 N / cm or more as described above, the peeling between the layers constituting the laminate 1 can be suppressed. Therefore, the anti-counterfeiting performance and anti-tampering performance of the laminate 1 can be improved. Here, the layer constituting the laminate 1 may include a layer constituting the recording member 20.

[0307] The average value of the minimum peel strength among the peel strengths between the layers constituting the laminate 1 is obtained by performing a 90 degree peel test. Figure 6 A and Figure 6 B describes a method for measuring the average value of the minimum peel strength among the peel strengths between layers.

[0308] First, the laminate 1 was cut into a strip having a width of 10 mm and a length of 100 mm to prepare a test piece 60, and the test piece 60 was placed in an atmosphere under a standard state at a temperature of 23±1° C. and a relative humidity of 50±5% for 24 hours or more. Figure 6 As shown in FIG. 1A, the surface of the substrate 11 side of the test piece 60 is fixed to the test stand 71 using a strong pressure-sensitive adhesive, and the tensile member 61 is bonded to the surface of the cover layer 15 side of the test piece 60. As the tensile member 61, a tape film having sufficient strength and not causing elongation or breakage when measuring the average peel strength is used. In addition, one end of the tensile member 61 is bonded to the adherend 60B with a sufficiently high adhesive force so that it does not peel off from the adherend 60B when measuring the average peel strength.

[0309] Next, if Figure 6 B, the clamping edge of the tensile member 61 is inserted between a set of movable rollers 73A and 73B of the clamp 72, and then the clamping edge is clamped and fixed by 10 mm or more by the clamping device (metal plate) 62 of the tensile compression tester SV-55C 2H manufactured by IMADA-SS Corporation. The subsequent process is the same as the method for measuring the average peel strength of the interface between the heat insulating layer 26 and the color developing layer 27. As described above, the average value of the minimum peel strength among the peel strengths between the layers constituting the laminate 1 is obtained.

[0310] The interface with the lowest average peel strength among the interfaces of the laminate 1 is preferably located between the color development layer 24 and the color development layer 27 or between the color development layer 27 and the color development layer 30. When the laminate 1 is disassembled, the recording member 20 is disassembled, so it is difficult to take out and use the recording member 20. Therefore, the anti-counterfeiting performance of the laminate 1 can be improved.

[0311] (combination of materials for base material, intermediate layer and cover layer)

[0312] From the viewpoint of improving adhesion, the substrate 11, the intermediate layer 13 and the covering layer 15 preferably contain the same type of resin material. The resin material may be a thermoplastic resin. From the viewpoint of environmental friendliness, the substrate 11, the intermediate layer 13 and the covering layer 15 preferably contain a polycarbonate (PC) resin or a polyethylene terephthalate (PET) resin. From the viewpoint of improving durability, the substrate 11, the intermediate layer 13 and the covering layer 15 preferably contain a polycarbonate (PC) resin or a polyvinyl chloride (PVC) resin. From the viewpoint of improving adhesion, environmental friendliness and improving durability, the substrate 11, the intermediate layer 13 and the covering layer 15 preferably contain a polycarbonate (PC) resin.

[0313] For example, it can be confirmed as follows that the substrate 11, the intermediate layer 13, and the cover layer 15 contain the same type of resin material. First, the substrate 11, the intermediate layer 13, and the cover layer 15 are taken out from the laminate 1. Next, an IR spectrum of each of the substrate 11, the intermediate layer 13, and the cover layer 15 is obtained by infrared absorption spectroscopy (IR). Next, by comparing the obtained IR spectra of each layer, it is confirmed that the substrate 11, the intermediate layer 13, and the cover layer 15 contain the same type of resin material.

[0314] Furthermore, the type of the resin material contained in each of the base material 11 , the intermediate layer 13 , and the cover layer 15 can be confirmed using the IR spectrum obtained for each layer.

[0315] [Method for producing laminate 1]

[0316] Hereinafter, an embodiment of a method for producing the laminated body 1 will be described.

[0317] First, a thermosetting resin as a thermal adhesive is applied to one main surface of the substrate 11 to form the adhesive layer 12. Next, the intermediate layer 13 is placed on the adhesive layer 12, and then the recording member 20 is assembled into the housing portion 13A of the intermediate layer 13. Note that the intermediate layer 13 in which the recording member 20 is assembled into the housing portion 13A in advance may be placed on the adhesive layer 12. Alternatively, the adhesive layer 12 may be formed by applying a thermosetting resin on the intermediate layer 13 in which the recording member 20 is assembled into the housing portion 13A in advance, and then placing the intermediate layer 13 on the main surface of the substrate 11 so that the coating is sandwiched between the intermediate layer 13 and the intermediate layer 13. Alternatively, the adhesive layer 12 may be formed by bonding a preformed sheet (for example, by applying a thermosetting resin to a diaphragm) to the main surface of the substrate 11 or the intermediate layer 13 in which the recording member 20 is assembled into the housing portion 13A in advance by heat lamination or the like.

[0318] Next, a thermosetting resin as a thermal adhesive is applied to the intermediate layer 13 to form an adhesive layer 14, and then a covering layer 15 is placed on the adhesive layer 14. Next, the obtained laminate is sandwiched between metal plates, and pressure is applied while heating to thermally cure the adhesive layer 12 and the adhesive layer 14. From the viewpoint of reducing damage to the recording member 20, the temperature applied to the laminate during thermal curing is preferably above 100°C and below 120°C. As a result, the target laminate 1 is obtained. The adhesive layer 14 can be formed by applying a thermosetting resin to the covering layer 15 and then placing the covering layer 15 on the intermediate layer 13 so as to sandwich the coating therebetween. Alternatively, the adhesive layer 14 can be formed by bonding a preformed sheet (for example, by applying a thermosetting resin to a diaphragm) to the covering layer 15 or the intermediate layer 13 by thermal lamination or the like.

[0319] [Recording Method of Laminated Body 1]

[0320] In the laminated body 1, for example, a pattern or the like can be recorded on the recording member 20 as follows. Here, a case where the color developing layers 24, 27, and 30 respectively exhibit cyan, magenta, and yellow will be described as an example.

[0321] For example, the recording member 20 is irradiated with infrared light having a predetermined wavelength and a predetermined output by a semiconductor laser or the like through the cover layer 15. Here, in the case of coloring the color-developing layer 24, the infrared light having a wavelength λ 1 The infrared ray irradiates the color developing layer 24 with an energy that reaches the color developing temperature of the color developing layer 24. As a result, the photothermal conversion material contained in the color developing layer 24 generates heat, a coloring reaction (color developing reaction) occurs between the coloring compound and the developer, and cyan is developed in the irradiated portion. Similarly, in the case of coloring the color developing layer 27, the infrared ray having a wavelength λ 2 The color developing layer 27 is irradiated with infrared light at an energy level at which the color developing layer 27 reaches the color developing temperature. Similarly, in the case of causing the color developing layer 30 to develop color, the color developing layer 30 is irradiated with infrared light having a wavelength λ at an energy level at which the color developing layer 30 reaches the color developing temperature. 3 The color developing layer 30 is irradiated with infrared rays of the corresponding wavelength. As a result, the photothermal conversion materials contained in the color developing layer 27 and the color developing layer 30 each generate heat to cause a coloring reaction between the coloring compound and the developer, and magenta and yellow are developed in the irradiated portions, respectively. In this way, by irradiating an arbitrary portion with infrared rays having a corresponding wavelength, a pattern or the like (for example, a full-color pattern or the like) can be recorded.

[0322] [Function and Effect]

[0323] As described above, in the laminate 1, the base material 11 and the intermediate layer 13 are bonded to each other by the adhesive layer 12 containing a thermal adhesive, and the intermediate layer 13 and the cover layer 15 are bonded to each other by the adhesive layer 12 containing a thermal adhesive. With this configuration, the base material 11 and the intermediate layer 13 can be firmly bonded to each other, and the intermediate layer 13 and the cover layer 15 can be firmly bonded to each other. Therefore, the anti-counterfeiting performance of the laminate 1 can be improved. In addition, the anti-tampering performance of the laminate 1 can be improved. Therefore, the security of the laminate 1 can be improved.

[0324] Since the recording member 20 includes the color developing layers 24, 27, and 30, a photographed image or the like of the laminate 1 such as a plastic security card can be fully colored.

[0325] In the laminated body 1 , the full-color recording member 20 is provided in a part of the plane of the laminated body 1 , and therefore, the cost can be reduced compared with the case where the full-color recording member 20 is provided on the entire plane of the laminated body 1 .

[0326] Since the recording member 20 is fitted into the housing portion 13A of the intermediate layer 13, it is possible to make it difficult to visually recognize the boundary between the recording member 20 and the intermediate layer 13 in the in-plane direction of the laminate 1. Therefore, it is difficult to recognize the portion in which the recording member 20 is provided in the plane of the laminate 1. Therefore, the anti-counterfeiting performance can be improved.

[0327] Since the recording member 20 is sealed in the inner portion of the laminated body 1 , the influence of moisture on the recording member 20 can be reduced.

[0328] Since the recording member 20 includes the heat insulating layers 23, 26, and 29, the thickness of the recording member 20 can be made equal to the thickness of the intermediate layer 13 by adjusting the thickness of the heat insulating layers 23, 26, and 29. Therefore, the occurrence of a physical layer difference at the boundary between the recording member 20 and the intermediate layer 13 can be suppressed.

[0329] <1-2 Laminated body 2>

[0330] [Configuration of Laminated Body 2]

[0331] Figure 7 2 is a cross-sectional view showing a configuration example of the laminate 2. The laminate 2 is different from the laminate 1 in that the intermediate layer 13 has a receiving portion 13B instead of the receiving portion 13A. The receiving portion 13B is a bottomed depression that is depressed in the thickness direction of the intermediate layer 13. The receiving portion 13B may be provided on the main surface on the side facing the cover layer 15 or on the main surface on the side facing the substrate 11, of the two main surfaces of the intermediate layer 13.

[0332] [Function and Effect]

[0333] In the laminated body 2 , actions and effects similar to those of the laminated body 1 can be obtained.

[0334] <1-3 Laminated body 3>

[0335] [Configuration of Laminated Body 4]

[0336] Figure 8 : is a cross-sectional view showing a configuration example of laminate 3. Laminate 3 is different from laminate 1 in that laminate 3 does not include adhesive layer 12 or adhesive layer 14, substrate 11 and intermediate layer 13 are bonded to each other by melting, and intermediate layer 13 and cover layer 15 are bonded to each other by melting.

[0337] In the laminate 4, the base material 11, the intermediate layer 13, and the cover layer 15 preferably contain a thermoplastic resin as plastic. By making the base material 11, the intermediate layer 13, and the cover layer 15 all contain a thermoplastic resin, the interlayer adhesion strength by fusion can be improved. From the viewpoint of reducing damage to the recording member 20, the thermoplastic resin is preferably capable of thermally fusing the layers of the laminate 3 to each other within a temperature range of 130° C. to 200° C.

[0338] The substrate 11, the intermediate layer 13, and the cover layer 15 may contain the same type of thermoplastic resin, or the substrate 11, the intermediate layer 13, and the cover layer 15 do not necessarily contain the same type of thermoplastic resin. In the case where the substrate 11, the intermediate layer 13, and the cover layer 15 do not contain the same type of thermoplastic resin, one of the substrate 11, the intermediate layer 13, and the cover layer 15 may contain a thermoplastic resin of a type different from that of the other two layers, or the substrate 11, the intermediate layer 13, and the cover layer 15 may contain thermoplastic resins of different types from each other.

[0339] In the case where the substrate 11, the intermediate layer 13 and the cover layer 15 contain the same type of thermoplastic resin, from the viewpoint of improving interlayer adhesive strength by fusion, the substrate 11, the intermediate layer 13 and the cover layer 15 preferably contain at least one selected from the group consisting of semicrystalline thermoplastic resins and non-crystalline thermoplastic resins.

[0340] The semi-crystalline thermoplastic resin includes, for example, at least one selected from the group consisting of polypropylene (PP), polyethylene (PE), polyacetal (POM), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyphenylene sulfide (PPS), polyetheretherketone (PEEK), etc.

[0341] The non-crystalline thermoplastic resin includes, for example, at least one selected from the group consisting of ABS resin, polycarbonate (PC), a polymer alloy of ABS resin and PC (hereinafter, referred to as "ABS / PC polymer alloy"), AS resin, polystyrene (PS), polymethyl methacrylate (PMMA), polyphenylene ether (PPO), polysulfone (PSU), polyvinyl chloride (PVC), polyetherimide (PEI), polyethersulfone (PES), etc.

[0342] In the case where the base material 11 , the intermediate layer 13 , and the cover layer 15 do not contain the same type of thermoplastic resin, the base material 11 , the intermediate layer 13 , and the cover layer 15 preferably contain a non-crystalline thermoplastic resin from the viewpoint of improving interlayer adhesive strength by fusion.

[0343] The combination of non-crystalline thermoplastic resins contained in two adjacent layers of the laminate 3 is preferably as follows. In the case where one of the two adjacent layers of the laminate 3 contains ABS resin, the other layer preferably contains at least one selected from the group consisting of ABS / PC polymer alloy, polycarbonate (PC), AS resin, polystyrene (PS), polymethyl methacrylate (PMMA), and polyvinyl chloride (PVC).

[0344] In the case where one of the two adjacent layers of the laminate 3 contains ABS / PC polymer alloy, the other layer preferably contains at least one selected from the group consisting of ABS resin, polycarbonate (PC) and polymethyl methacrylate (PMMA). In the case where one of the two adjacent layers of the laminate 3 contains polycarbonate (PC), the other layer preferably contains at least one selected from the group consisting of ABS resin, ABS / PC polymer alloy and polymethyl methacrylate (PMMA).

[0345] When one of the two adjacent layers of the laminate 3 contains AS resin, the other layer preferably contains at least one selected from the group consisting of ABS resin, polystyrene (PS), polymethyl methacrylate (PMMA), and polyphenylene ether (PPO). When one of the two adjacent layers of the laminate 3 contains polystyrene (PS), the other layer preferably contains at least one selected from the group consisting of AS resin and polyphenylene ether (PPO).

[0346] When one of the two adjacent layers of the laminate 3 contains polymethyl methacrylate (PMMA), the other layer preferably contains at least one selected from the group consisting of ABS resin, ABS / PC polymer alloy, AS resin, and polyphenylene ether (PPO). When one of the two adjacent layers of the laminate 3 contains polyphenylene ether (PPO), the other layer preferably contains at least one selected from the group consisting of polycarbonate (PC), AS resin, polystyrene (PS), and polymethyl methacrylate (PMMA).

[0347] In the case where one of two adjacent layers of the laminate 3 contains polysulfone (PSU), the other layer preferably contains polycarbonate (PC). In the case where one of two adjacent layers of the laminate 3 contains polyvinyl chloride (PVC), the other layer preferably contains ABS resin.

[0348] [Method for producing laminate 3]

[0349] Hereinafter, an embodiment of a method for producing the laminated body 3 will be described.

[0350] First, the intermediate layer 13 is placed on one main surface of the substrate 11, and then the recording member 20 is assembled into the housing portion 13A of the intermediate layer 13. Note that the intermediate layer 13 in which the recording member 20 is assembled into the housing portion 13A in advance may be placed on one main surface of the substrate 11. Next, the cover layer 15 is placed on the intermediate layer 13. Next, the obtained laminate is sandwiched between metal plates, and heated and pressurized to thermally fuse the substrate 11 and the intermediate layer 13, and to thermally fuse the intermediate layer 13 and the cover layer 15. From the viewpoint of reducing damage to the recording member 20 and showing sufficient melt strength, the temperature applied to the laminate during heat fusion is preferably 130° C. or more and 200° C. or less. Thus, the target laminate 3 is obtained.

[0351] [Function and Effect]

[0352] As described above, in the laminate 3, the base material 11 is fused with the intermediate layer 13, and the intermediate layer 13 is fused with the cover layer 15. With this configuration, the base material 11 and the intermediate layer 13 can be firmly bonded to each other, and the intermediate layer 13 and the cover layer 15 can be firmly bonded to each other. Therefore, the anti-counterfeiting performance of the laminate 3 can be improved. In addition, the anti-tampering performance of the laminate 3 can be improved. Therefore, the security of the laminate 3 can be improved.

[0353] <1-4 Laminated body 4>

[0354] [Configuration of Laminated Body 4]

[0355] Fig. 9: is a cross-sectional view showing a configuration example of the laminate 4. The laminate 4 is different from the laminate 3 in that the intermediate layer 13 has a receiving portion 13B instead of the receiving portion 13A. The receiving portion 13B is a bottomed depression that is depressed in the thickness direction of the intermediate layer 13. The receiving portion 13B may be provided on the main surface on the side facing the cover layer 15 or on the main surface on the side facing the substrate 11 of the two main surfaces of the intermediate layer 13.

[0356] [Function and Effect]

[0357] In the laminated body 4, similar actions and effects as those of the laminated body 3 can be obtained.

[0358] <1-5 Laminated body 5>

[0359] [Configuration of Laminated Body 5]

[0360] Fig.10 1 is a perspective view showing an example of the appearance of the laminated body 5 . Fig.11 is along Fig.10 The laminate 5 includes a substrate 11, an adhesive layer 12, an intermediate layer 16, an adhesive layer 14, a cover layer 15, and a recording member 20. Note that in the laminate 5, portions similar to those in the laminate 1 are denoted by the same reference numerals, and description thereof is omitted.

[0361] (Middle layer 16)

[0362] The intermediate layer 16 can protect the side of the recording member 20. The intermediate layer 16 surrounds the peripheral edge portion of one main surface of the substrate 11. The intermediate layer 16 has a frame shape in a plan view. In this specification, the peripheral portion of one main surface refers to an area having a predetermined width from the periphery of one main surface toward the inside. In addition, in this specification, a plan view refers to a plan view when an object is viewed from a direction perpendicular to one main surface of the substrate 11.

[0363] The intermediate layer 16 includes a housing portion 16A. The recording member 20 is housed in the housing portion 16A. The housing portion 16A is a through hole that penetrates the recording member 20 in its thickness direction. The intermediate layer 16 and the recording member 20 preferably have substantially the same thickness. As a result, it is possible to suppress the occurrence of a step difference at the boundary between the intermediate layer 16 and the recording member 20 in a state where the recording member 20 is housed in the housing portion 16A.

[0364] The intermediate layer 16 has a film shape. The intermediate layer 16 may have transparency. The intermediate layer 16 contains plastic. Examples of the plastic include the same materials as those for the substrate 11.

[0365] (Middle layer)

[0366] The intermediate layer 35A is similar to the intermediate layer 32B of the recording member 20, except that the heat insulating layer 26 is adjacent to the color developing layer 24 and the pressure sensitive adhesive layer 25 is adjacent to the color developing layer 27. The intermediate layer 35B is similar to the intermediate layer 32C of the recording member 20, except that the heat insulating layer 29 is adjacent to the color developing layer 27 and the pressure sensitive adhesive layer 28 is adjacent to the color developing layer 30. The intermediate layer 35C is similar to the intermediate layer 32D of the recording member 20, except that the heat insulating layer 34 is adjacent to the color developing layer 30 and the pressure sensitive adhesive layer 33 is adjacent to the protective layer 36.

[0367] (Protective layer 36)

[0368] The protective layer 36 includes an ultraviolet curable resin layer 36A, a UV cutting layer 36B, a pressure-sensitive adhesive layer 36C and a base material 36D in sequence on one main surface of the intermediate layer 35C. The ultraviolet curable resin layer 36A can protect the surface of the recording member 20. The ultraviolet curable resin layer 36A can have a function as a heat insulating layer and / or a diffusion preventing layer. The UV cutting layer 36B can cut ultraviolet rays incident on the color developing layers 24, 27 and 30.

[0369] The pressure-sensitive adhesive layer 36C may bond the UV cutting layer 36B and the base material 36D to each other.

[0370] As the material of the pressure-sensitive adhesive layer 36C, a material similar to that of the pressure-sensitive adhesive layers 22, 25, and 28 can be exemplified. The substrate 36D can support the ultraviolet curable resin layer 36A, the UV cutting layer 36B, and the pressure-sensitive adhesive layer 36C. The substrate 36D can protect the surface of the recording member 20. As the material of the substrate 36D, for example, a material similar to that of the substrate 11 can be exemplified.

[0371] [Function and Effect]

[0372] In the laminated body 5 , actions and effects similar to those of the laminated body 1 can be obtained.

[0373] <1-6 laminate 6>

[0374] [Configuration of Laminated Body 6]

[0375] Fig.12 1 is a cross-sectional view showing a configuration example of the laminate 6. The laminate 6 is different from the laminate 6 in that the intermediate layer 16 has a shell portion 16B instead of the shell portion 16A. The receiving portion 16B is a bottomed recessed portion recessed in the thickness direction of the intermediate layer 16. The receiving portion 16B may be provided on the main surface on the side facing the cover layer 15 or on the main surface on the side facing the substrate 11, of the two main surfaces of the intermediate layer 13.

[0376] [Function and Effect]

[0377] In the laminated body 6, similar actions and effects to those of the laminated body 5 can be obtained.

[0378] <1-7 Laminated body 7>

[0379] [Configuration of Laminated Body 7]

[0380] Fig.13 1 is a cross-sectional view showing an example of a configuration of a laminate 7. The laminate 7 is different from the laminate 3 in that an intermediate layer 16 is included instead of the intermediate layer 13. The intermediate layer 16 is as described in the configuration of the laminate 5.

[0381] [Function and Effect]

[0382] In the laminated body 7 , actions and effects similar to those of the laminated body 3 can be obtained.

[0383] <1-8 Laminated body 8>

[0384] [Configuration of Laminated Body 8]

[0385] Fig.14 is a cross-sectional view showing a configuration example of a laminate 8. The laminate 8 is different from the laminate 7 in that the intermediate layer 16 has an outer shell portion 16B instead of the outer shell portion 16A. The receiving portion 16B is a bottomed recessed portion recessed in the thickness direction of the intermediate layer 16. The receiving portion 16B may be provided on the main surface on the side facing the cover layer 15 or on the main surface on the side facing the substrate 11, of the two main surfaces of the intermediate layer 16.

[0386] [Function and Effect]

[0387] In the laminated body 8 , actions and effects similar to those of the laminated body 7 can be obtained.

[0388] <2 Recording Components>

[0389] In the above description of the laminates 1 to 6, an embodiment has been described in which the laminates 1 to 6 each include the recording member 20. However, the laminates 1 to 6 may each include Figures 15 to 22 Any of the recording members 20A to 20H shown, or may include Fig.23 The recording member 50 is shown. Alternatively, the laminates 1 to 6 may each include another recording member. Hereinafter, these recording members will be described sequentially.

[0390] <2-1 Recording Member 20A>

[0391] Fig.152 is a cross-sectional view showing an embodiment of the configuration of the recording member 20A. The recording member 20A includes a substrate 21, a pressure-sensitive adhesive layer 22, a color layer 24, an intermediate layer 35A, a color layer 27, an intermediate layer 35B, a color layer 30, an intermediate layer 35C, and a protective layer 36 in sequence. More specifically, the recording member 20A includes a substrate 21, a pressure-sensitive adhesive layer 22, a color layer 24, a heat-insulating layer 26, a pressure-sensitive adhesive layer 25, a color layer 27, a heat-insulating layer 29, a pressure-sensitive adhesive layer 28, a color layer 30, a heat-insulating layer 34, a pressure-sensitive adhesive layer 33, and a protective layer 36 in sequence. The heat-insulating layers 26, 29, and 34 may or may not be provided as required. The recording member 20A is accommodated in the receiving portion 16A of the intermediate layer 16 so that the substrate 21 is on one side of the adhesive layer 12 and the protective layer 31 is on one side of the adhesive layer 14.

[0392] (Middle Layers 35A, 35B and 35C)

[0393] The intermediate layer 35A is similar to the intermediate layer 32B of the recording member 20, except that the heat insulating layer 26 is adjacent to the color developing layer 24 and the pressure sensitive adhesive layer 25 is adjacent to the color developing layer 27. The intermediate layer 35B is similar to the intermediate layer 32C of the recording member 20, except that the heat insulating layer 29 is adjacent to the color developing layer 27 and the pressure sensitive adhesive layer 28 is adjacent to the color developing layer 30. The intermediate layer 35C is similar to the intermediate layer 32D of the recording member 20, except that the heat insulating layer 34 is adjacent to the color developing layer 30 and the pressure sensitive adhesive layer 33 is adjacent to the protective layer 36.

[0394] (Protective layer 36)

[0395] The protective layer 36 includes an ultraviolet curable resin layer 36A, a UV cutting layer 36B, a pressure-sensitive adhesive layer 36C and a base material 36D in sequence on one main surface of the intermediate layer 35C. The ultraviolet curable resin layer 36A can protect the surface of the recording member 20A. The ultraviolet curable resin layer 36A can have a function as a heat insulating layer and / or a diffusion prevention layer. The UV cutting layer 36B can cut ultraviolet rays incident on the color developing layers 24, 27 and 30.

[0396] The pressure-sensitive adhesive layer 36C may bond the UV cutting layer 36B and the base material 36D to each other.

[0397] As the material of the pressure-sensitive adhesive layer 36C, a material similar to that of the pressure-sensitive adhesive layers 22, 25, and 28 can be exemplified. The substrate 36D can support the ultraviolet curable resin layer 36A, the UV cutting layer 36B, and the pressure-sensitive adhesive layer 36C. The substrate 36D can protect the surface of the recording member 20A. As the material of the substrate 36D, for example, a material similar to that of the substrate 11 can be exemplified.

[0398] <2-2 Recording Component 20B>

[0399] Fig.16 20B is a cross-sectional view showing a configuration example of the recording member 20B. The recording member 20B is different from the recording member 20 in that a protective layer 36 is included instead of the protective layer 31. The protective layer 36 is as described in the description of the recording member 20A.

[0400] <2-3 Recording Component 20C>

[0401] Fig.17 20C is a cross-sectional view showing a configuration example of a recording member 20C. The recording member 20C is different from the recording member 20A in that intermediate layers 37A, 37B, and 37C are included instead of the intermediate layers 35A, 35B, and 35C. The recording member 20C does not necessarily include the base material 21 or the pressure-sensitive adhesive layer 22.

[0402] The intermediate layer 37A includes a heat insulating layer 26A and a pressure sensitive adhesive layer 25 in sequence on one main surface of the color developing layer 24. The heat insulating layer 26A includes a resin layer 26A1 and an ultraviolet curable resin layer 26A2 in sequence on one main surface of the color developing layer 24. The resin layer 26A1 is arranged between the color developing layer 24 and the ultraviolet curable resin layer 26A2. The resin layer 26A1 can improve the adhesion between the color developing layer 24 and the ultraviolet curable resin layer 26A2. The resin layer 26A1 contains a resin material of the same type as the matrix polymer contained in the color developing layer 24. For example, in the case where the color developing layer 24 contains a polycarbonate resin as the matrix polymer, the resin layer 26A1 contains a polycarbonate resin. The ultraviolet curable resin layer 26A2 is similar to the ultraviolet curable resin layer of the heat insulating layer 26 in the recording member 20A.

[0403] The intermediate layer 37B includes a heat insulating layer 29A and a pressure sensitive adhesive layer 28 in sequence on one main surface of the color developing layer 27. The heat insulating layer 29A includes a resin layer 29A1 and an ultraviolet curable resin layer 29A2 in sequence on one main surface of the color developing layer 27. The resin layer 29A1 is provided between the color developing layer 27 and the ultraviolet curable resin layer 29A2. The resin layer 29A1 can improve the adhesion between the color developing layer 27 and the ultraviolet curable resin layer 29A2. The resin layer 29A1 contains a resin material of the same type as the base polymer contained in the color developing layer 27. For example, in the case where the color developing layer 27 contains a polycarbonate resin as the base polymer, the resin layer 29A1 contains a polycarbonate resin. The ultraviolet curable resin layer 29A2 is similar to the ultraviolet curable resin layer of the heat insulating layer 29 in the recording member 20A.

[0404] The intermediate layer 37C includes a heat insulating layer 34A and a pressure sensitive adhesive layer 33 on one main surface of the color developing layer 30 in sequence. The heat insulating layer 34A includes a resin layer 34A1 and an ultraviolet curable resin layer 34A2 on one main surface of the color developing layer 30 in sequence. The resin layer 34A1 is arranged between the color developing layer 30 and the ultraviolet curable resin layer 34A2. The resin layer 34A1 can improve the adhesion between the color developing layer 30 and the ultraviolet curable resin layer 34A2. The resin layer 34A1 contains a resin material of the same type as the matrix polymer contained in the color developing layer 30. For example, in the case where the color developing layer 30 contains a polycarbonate resin as the matrix polymer, the resin layer 34A1 contains a polycarbonate resin. The ultraviolet curable resin layer 34A2 is similar to the ultraviolet curable resin layer of the heat insulating layer 34 in the recording member 20A.

[0405] The reason why the resin layer 26A1 is disposed between the color developing layer 24 and the ultraviolet curable resin layer 26A2 is as follows. In the case where the color developing layer 24 contains a particulate developer, the particulate developer is distributed on the surface of the color developing layer 24. Therefore, in the case where the color developing layer 24 and the ultraviolet curable resin layer 26A2 are adjacent to each other, the adhesion may be reduced. As described above, by the resin layer 34A1 being adjacent to the color developing layer 24 and the resin layer 34A1 containing the same type of resin material as the base polymer contained in the color developing layer 24, the adhesion at the interface other than the portion where the developer is distributed can be improved. Therefore, the reduction in adhesion due to the particulate developer can be compensated.

[0406] The reason why resin layer 29A1 is set between color development layer 27 and ultraviolet curable resin layer 29A2 and the reason why resin layer 34A1 is set between color development layer 30 and ultraviolet curable resin layer 34A2 is similar to the reason why resin layer 26A1 is set between color development layer 24 and ultraviolet curable resin layer 26A2.

[0407] <2-4 Recording Component 20D>

[0408] Fig.18 20D is a cross-sectional view showing a configuration example of a recording member 20D. The recording member 20D is different from the recording member 20A in that intermediate layers 38A, 38B, and 38C are included instead of the intermediate layers 35A, 35B, and 35C.

[0409] The intermediate layer 38A includes a heat-insulating layer 26B and a pressure-sensitive adhesive layer 25 in this order on one major surface of the color-developing layer 24 .

[0410] The heat-insulating layer 26B includes a pressure-sensitive adhesive layer 26B1 and an ultraviolet curable resin layer 26B2 in sequence on one main surface of the color-developing layer 24. The pressure-sensitive adhesive layer 26B1 is disposed between the color-developing layer 24 and the ultraviolet curable resin layer 26B2. The pressure-sensitive adhesive layer 26B1 can adhere the color-developing layer 24 and the ultraviolet curable resin layer 26B2 to each other. Since the pressure-sensitive adhesive layer 26B1 is disposed between the color-developing layer 24 and the ultraviolet curable resin layer 26B2, the reduction in adhesion caused by the developer contained in the color-developing layer 24 can be compensated. As the material of the pressure-sensitive adhesive layer 26B1, a material similar to that of the pressure-sensitive adhesive layers 22, 25, and 28 can be exemplified.

[0411] The intermediate layer 38B includes a heat-insulating layer 29B and a pressure-sensitive adhesive layer 28 in this order on one major surface of the color-developing layer 27 .

[0412] The heat-insulating layer 29B includes a pressure-sensitive adhesive layer 29B1 and an ultraviolet curable resin layer 29B2 in sequence on one main surface of the color-developing layer 27. The pressure-sensitive adhesive layer 29B1 is disposed between the color-developing layer 27 and the ultraviolet curable resin layer 29B2. The pressure-sensitive adhesive layer 29B1 can adhere the color-developing layer 27 and the ultraviolet curable resin layer 29B2 to each other. Since the pressure-sensitive adhesive layer 29B1 is disposed between the color-developing layer 27 and the ultraviolet curable resin layer 29B2, it is possible to compensate for the reduction in adhesion due to the developer contained in the color-developing layer 27. As a material of the pressure-sensitive adhesive layer 29B1, a material similar to that of the pressure-sensitive adhesive layers 22, 25, and 28 can be exemplified.

[0413] The intermediate layer 38C includes a heat-insulating layer 34B and a pressure-sensitive adhesive layer 33 in this order on one major surface of the color-developing layer 30 .

[0414] The heat-insulating layer 34B includes a pressure-sensitive adhesive layer 34B1 and an ultraviolet curable resin layer 34B2 in sequence on one main surface of the color-developing layer 30. The pressure-sensitive adhesive layer 34B1 is disposed between the color-developing layer 30 and the ultraviolet curable resin layer 34B2. The pressure-sensitive adhesive layer 34B1 can adhere the color-developing layer 30 and the ultraviolet curable resin layer 34B2 to each other. Since the pressure-sensitive adhesive layer 34B1 is disposed between the color-developing layer 30 and the ultraviolet curable resin layer 34B2, the reduction in adhesion due to the developer contained in the color-developing layer 30 can be compensated. As a material of the pressure-sensitive adhesive layer 34B1, a material similar to that of the pressure-sensitive adhesive layers 22, 25, and 28 can be exemplified.

[0415] <2-5 Recording Component 20E>

[0416] Fig.1920E is a cross-sectional view showing a configuration example of a recording member 20E. The recording member 20E is different from the recording member 20A in that intermediate layers 39A, 39B, and 39C are included instead of the intermediate layers 35A, 35B, and 35C. The recording member 20E does not necessarily include the base material 21 or the pressure-sensitive adhesive layer 22.

[0417] Each of the intermediate layers 39A, 39B is a film. The film is preferably a film that has been subjected to easy adhesion treatment. As the material of the film, a material similar to that of the substrate 11 can be exemplified. Examples of easy adhesion treatment include primer treatment, active energy ray irradiation treatment, plasma treatment, corona treatment, vapor deposition treatment, etching treatment, sandblasting treatment, etc. One or a combination of two or more of them can be selected from these. The primer treatment can be a primer treatment using a resin, a silane coupling agent, a tetraalkoxysilane, etc.

[0418] Since a film that has been subjected to an easy adhesion treatment as the intermediate layer 39A is provided between the color development layer 24 and the color development layer 27, it is possible to compensate for the decrease in adhesion due to the developer contained in the color development layer 24. Since a film that has been subjected to an easy adhesion treatment as the intermediate layer 39B is provided between the color development layer 27 and the color development layer 30, it is possible to compensate for the decrease in adhesion due to the developer contained in the color development layer 27.

[0419] The intermediate layer 39C is a pressure-sensitive adhesive layer. As the material of the pressure-sensitive adhesive layer, materials similar to those of the pressure-sensitive adhesive layers 22, 25, and 28 can be exemplified. Since the pressure-sensitive adhesive layer is provided as the intermediate layer 39C between the color development layer 30 and the protective layer 36, the decrease in adhesion due to the developer contained in the color development layer 30 can be compensated.

[0420] <2-6 Recording Component 20F>

[0421] Fig. 20 20F is a cross-sectional view showing an example of the configuration of a recording member 20F. The recording member 20F is different from the recording member 20E of Modification 9 in that an intermediate layer 41B is included instead of the intermediate layer 39B.

[0422] The intermediate layer 41B includes a resin layer 41B1 and a resin layer 41B2 in sequence on one main surface of the color development layer 27. The resin layer 41B1 contains a resin material of the same type as the base polymer contained in the color development layer 27. For example, in the case where the color development layer 27 contains a polycarbonate resin as the base polymer, the resin layer 41B1 contains a polycarbonate resin. The resin layer 41B2 is a film. The film is preferably a film that has been subjected to easy adhesion treatment. As the material of the film, a material similar to that of the substrate 11 can be exemplified.

[0423] As described above, since the resin layer 41B1 is provided between the color development layer 27 and the resin layer 41B2 , it is possible to compensate for a decrease in adhesion due to the developer contained in the color development layer 27 .

[0424] <2-7 Recording Component 20G>

[0425] Fig.21 20G is a cross-sectional view showing a configuration example of a recording member 20G. The recording member 20G is different from the recording member 20E of Modification 9 in including an intermediate layer 38A instead of the intermediate layer 39A and including a base material 42.

[0426] The intermediate layer 38A is as described in the recording member 20D. The substrate 42 is provided adjacent to the other surface of the color development layer 24. The substrate 42 is a film that has been subjected to an easy adhesion treatment. As the material of the film, materials similar to those of the substrate 11 can be exemplified.

[0427] <2-8 Recording Component 20H>

[0428] Fig. 22 20H is a cross-sectional view showing a configuration example of a recording member 20H. The recording member 20H is different from the recording member 20A in that intermediate layers 42A and 42B are included instead of the intermediate layers 35A and 35B.

[0429] Each of the intermediate layers 42A and 42B is a pressure-sensitive adhesive layer. As the material of the pressure-sensitive adhesive layer, a material similar to that of the pressure-sensitive adhesive layers 22, 25, and 28 can be exemplified.

[0430] <2-9 Recording Component 50>

[0431] Fig.23 2 is a cross-sectional view showing an example of a configuration of the recording member 50. Each of the above-mentioned recording members 20 and 20A to 20H includes three color development layers (color development layers 24, 27 and 30) having mutually different hues, and thus can perform multi-color display. On the other hand, the recording member 50 has a single-layer structure capable of multi-color display.

[0432] The recording member 50 includes, in order, a base material 51, a color development layer 52, and a protective layer 53. The base material 51 and the protective layer 53 are similar to the base material 21 and the protective layer 31 in the first embodiment, respectively.

[0433] The color development layer 52 includes three types of microcapsules 52C, 52M and 52Y having different color tones. That is, the color development layer 52 includes three types of microcapsules 52C, 52M and 52Y that respectively display different colors in the color development state. The color development layer 52 may contain a first matrix polymer as needed. For example, the three types of microcapsules 52C, 52M, and 52Y respectively contain coloring compounds that exhibit different colors from each other (for example, cyan (C), magenta (M), and yellow (Y)), developers corresponding to the coloring compounds, photothermal conversion materials that generate heat by absorbing light in different wavelength ranges from each other, and a second matrix polymer. As the material of the microcapsule wall containing the above-mentioned material, for example, it is preferred to use the same material as the material constituting the above-mentioned heat insulation layers 23, 26, and 29.

[0434] <2-10 Other Recording Components>

[0435] The above-mentioned recording members (excluding the recording member 50) all have a configuration including three color development layers (color development layers 24, 27 and 30). However, the number of color development layers of the recording member is not limited thereto. For example, the recording member may include one color development layer, or may include multiple color development layers other than the three color development layers (i.e., two color development layers or four or more color development layers). In this case as well, an intermediate layer may be provided between the laminated color development layers. The multiple color development layers may exhibit different hues from each other in the color development state. That is, the coloring compounds contained in the multiple color development layers may exhibit different hues from each other in the color development state. The photothermal conversion agents contained in the corresponding multiple color development layers may have different absorption wavelength peaks from each other.

[0436] The recording member may include an intermediate layer including a recording member capable of rewriting a pattern or the like by an external stimulus such as laser or heat. More specifically, the recording member may include an intermediate layer including a recording member capable of reversibly changing a coloring state by an external stimulus such as laser or heat. The recording member may have a configuration capable of performing full-color recording, or may have a configuration capable of performing monochrome recording such as monochrome recording.

[0437] <3 First Embodiment>

[0438] [Configuration of Recording Body 100]

[0439] Fig.24 : is a perspective view showing an example of the appearance of the recording body 100 according to the first embodiment. Fig.25 It is along Fig.241. The recording body 100 may be a label (e.g., a product label) or a plate (e.g., a logo plate) for verifying that the article 101 is authentic. The recording body 100 may be connected to the article 101 by at least one connecting member 102. The recording body 100 includes a laminate 10 and an external material 110.

[0440] In order to make the record body 100 easy to bend, the record body 100 may include a plurality of dividing elements, and the dividing elements may be connected to each other by a connecting member. Cutting may be performed in advance in the record body 100. Alternatively, the record body 100 may include an elastic substrate as a constituent component. In order to prevent the record body 100 from bending, the record body 100 may include a rigid retainer.

[0441] (Item 101)

[0442] The article 101 is, for example, a leather product including leather or a cloth product including cloth. Specifically, the article 101 is, for example, a bag, a wallet, clothes, and the like.

[0443] (Connecting member 102)

[0444] The connection member 102 may connect the external material 110 and the article 101 to each other.

[0445] The connecting member 102 is a yarn, a pin, a rivet, or the like.

[0446] (Laminate 10)

[0447] Fig.26 is a cross-sectional view showing a configuration example of the laminated body 10. Authentication information may be included in the laminated body 10, specifically, in the recording member 20. The authentication information may be information for proving whether the article 101 provided with the recording body 100 is authentic.

[0448] Examples of authentication information include serial numbers, QR codes (registered trademarks), fine characters, random shapes (e.g., artifact metrics), parallax, etc., and these can be used alone or in combination of two or more thereof. For example, parallax is read at a specific angle by thickening the middle layer of the recording member 20.

[0449] Cracks may be formed in the recording member 20. The cracks may be used as authentication information of the recording body 100 as an artifact metric. For example, the cracks are formed in the process of manufacturing the recording member 20. Specifically, for example, the cracks are formed by processes such as pulling the recording member 20, hitting the recording member 20, pressing the recording member 20, bending the recording member 20, or rapidly cooling the recording member 20. These processes may be performed alone or in combination of two or more types thereof.

[0450] The manufacturer, seller, etc. of the article 101 may store the authentication information in a storage device such as a cloud server or a database and manage the authentication information. In this case, the user can read the authentication information stored in the laminate 10 using a reading device, and compare the read authentication information with the authentication information stored in the storage device using a terminal device via the Internet, etc. In addition, when the comparison is obtained, the user can use the terminal device to obtain information related to the article 101 (for example, the history of the article 101, etc.). The authentication information can be used for anti-counterfeiting. For example, the authentication information can be used to determine the authenticity of transactions between individuals.

[0451] A pattern, a picture, a photograph, a character, a color, or a combination of two or more thereof (hereinafter, referred to as a "pattern, etc.") may be recorded in the recording medium 100. As the pattern, etc. recorded in the recording medium 100 and the design of the recording medium 100, it is preferred to select a pattern that does not impair the design of the article 101.

[0452] The laminate 10 may be any one of the laminates 1 to 8 described above. Fig.24 and 26 An embodiment in which the laminate 10 is the laminate 1 is shown.

[0453] (external material 110)

[0454] The external material 110 covers the rear surface of the laminate 10 and the side surface of the laminate 10. In this specification, the front surface of the laminate 10 means the main surface (first surface) on the cover layer 15 side of the two main surfaces of the laminate 10, and the rear surface of the laminate 10 means the main surface (second surface) on the substrate 11 side of the two main surfaces of the laminate 10. The external material 110 has a receiving portion 111 on one surface side. The laminate 10 is accommodated in the receiving portion 111. The laminate 10 can be assembled into the outer shell portion 111 of the external material 110, and the laminate 10 and the external material 110 can be integrated with each other. An adhesive or a pressure-sensitive adhesive can be provided between the laminate 10 and the external material 110, and the laminate 10 and the external material 110 can be bonded to each other. Alternatively, the laminate 10 and the external material 110 can be bonded to each other by fusion. The external material 110 can be light-transmitting or non-light-transmitting. The outer material 110 may have transparency or may be colored.

[0455] The outer material 110 includes a bottom 112 and a side wall portion 113. The bottom 112 covers the rear surface of the laminate 10. The bottom 112 has a plate shape. The bottom 112 has the same shape as the bottom of the laminate 10. The side wall portion 113 covers the side surface of the laminate 10. The side wall portion 113 rises vertically from the peripheral edge portion of one main surface of the bottom 112. The side wall portion 113 has a closed loop shape in a top view. Here, a plan view refers to a plan view when an object is observed from a direction perpendicular to the main surface of the laminate 10.

[0456] The external material 110 includes, for example, leather, cloth, polymer resin, metal, glass, paper, wood or a composite material of two or more thereof. For example, the composite material of two or more materials can be a laminate in which two or more materials are laminated in sequence. Embodiments of metals include single substances such as aluminum, titanium, zinc, nickel, magnesium, copper, or iron, and alloys including two or more types thereof. Specific embodiments of alloys include stainless steel (SUS), aluminum alloys, magnesium alloys, titanium alloys, etc. Embodiments of polymer resins include copolymer synthetic resins (ABS resins) of acrylonitrile, butadiene, and styrene, polycarbonate (PC) resins, PC-ABS alloy resins, etc.

[0457] [Modifications]

[0458] (Variant 1)

[0459] In the first embodiment, the example has been described in which the recording body 100 includes the exterior material 110. However, the recording body 100 may include Figures 27 to 34 Any of the outer materials 110A to 110H shown instead of the outer material 110, or may include Fig.35 and Fig.36 Any one of the exterior material 120 and the exterior material 120A shown. Hereinafter, the exterior materials 110A to 110H, 120, and 120A will be described in sequence. Note that, in the exterior materials 110A to 110H, 120, and 120A, portions similar to those of the exterior material 110 in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

[0460] (External material 110A)

[0461] Fig. 27 110A is a cross-sectional view showing a configuration example of the exterior material 110A. The exterior material 110A covers the side surface of the laminated body 10 and opens both main surfaces of the laminated body 10. The exterior material 110A includes only the side wall portion 113.

[0462] (External material 110B)

[0463] Fig.281 is a cross-sectional view showing a configuration embodiment of the external material 110B. The external material 110B covers the rear surface of the laminate 10 and the side surface of the laminate 10, and covers the peripheral edge portion of the front surface of the laminate 10. Here, the peripheral edge portion of the front surface of the laminate 10 refers to an area having a predetermined width from the peripheral edge of one main surface of the front surface of the laminate 10 toward the inside. The external material 110B includes a bottom 112, a side wall portion 113 and a protrusion 114. The protrusion 114 covers the peripheral edge portion of the front surface of the laminate 10. The protrusion 114 is provided at the upper end of the side wall portion 113 and protrudes in a direction perpendicular to the inner peripheral surface of the side wall portion 113.

[0464] (External material 110C)

[0465] Fig.29 110 is a cross-sectional view showing a configuration example of an exterior material 110C. The exterior material 110C covers the side surface of the laminated body 10 and covers the peripheral edge portion of the front surface of the laminated body 10. The exterior material 110C includes a side wall portion 113 and a protruding portion 114.

[0466] (External material 110D)

[0467] Fig.30 1 is a cross-sectional view showing an embodiment of the configuration of the external material 110D. The external material 110D covers the front surface of the laminate 10 and the side surface of the laminate 10. The external material 110D includes a side wall portion 113 and an upper portion 115. The upper portion 115 covers the front surface of the laminate 10. The upper portion 115 is light-transmissive. The side wall portion 113 may also be light-transmissive. The upper portion 115 has a plate shape. The upper portion 115 has the same shape as the front surface of the laminate 10.

[0468] (External material 110E)

[0469] Fig.31 1 is a cross-sectional view showing a configuration example of the external material 110E. The external material 110E covers the entire surface of the laminate 10. That is, the external material 110E covers the rear surface of the laminate 10, the side surface of the laminate 10, and the front surface of the laminate 10. The external material 110E includes a bottom 112, a side wall portion 113, and an upper portion 115. The bottom 112, the side wall portion 113, and the upper portion 115 may all contain the same material. The external material 110E is light-transmissive.

[0470] (External material 110F)

[0471] Fig.321 is a cross-sectional view showing a configuration example of an exterior material 110F. The exterior material 110F includes a bottom 112, a side wall portion 113, and an upper portion 116. The upper portion 116 includes a material different from that of the bottom 112 and the side wall portion 113. In this case, the upper portion 116 is light-transmissive, while the bottom 112 and the side wall portion 113 may be light-impermeable.

[0472] (External material 110G)

[0473] Fig.33 1 is a cross-sectional view showing a configuration example of an exterior material 110G. The exterior material 110G includes a bottom portion 117, a side wall portion 113, and an upper portion 115. The bottom portion 117 includes a material different from that of the side wall portion 113 and the upper portion 115. In this case, the side wall portion 113 and the upper portion 115 are light-transmissive, while the bottom portion 117 may be light-impermeable.

[0474] (External material 110H)

[0475] Fig.34 1 is a cross-sectional view showing an embodiment of the configuration of the external material 110H. The external material 110H includes a bottom 117, a side wall portion 113, and an upper portion 116. The bottom 117 includes a material different from that of the side wall portion 113. The upper portion 116 includes a material different from that of the side wall portion 113. The bottom 117 may include a material different from that of the upper portion 116, or may include the same material as that of the upper portion 116. The upper portion 116 is light-transmissive. The bottom 117 and the side wall portion 113 may be light-transmissive or non-light-transmissive.

[0476] (external material 120)

[0477] Fig.35 1 is a cross-sectional view showing a configuration embodiment of the external material 120. The external material 120 includes a first external member 121 and a second external member 122. The first external member 121 and the second external member 122 are preferably flexible. The first external member 121 and the second external member 122 preferably each have a film shape. The laminate 10 is sandwiched between the first external member 121 and the second external member 122. The first external member 121 covers the rear surface of the laminate 10. The first external member 121 may be light-transmissive or light-impermeable. The first external member 121 may be colored. The second external member 122 covers the front surface of the laminate 10. The second external member 122 is light-transmissive. The second external member 122 may be colored.

[0478] The peripheral edge portions of the first outer member 121 and the second outer member 122 may be bonded to each other, or may be connected by a connecting member. Alternatively, the peripheral edge portions of the first outer member 121 and the second outer member 122 may be bonded to each other and connected by a connecting member. Preferably, the type of bonding between the peripheral edge portions is selected in consideration of the materials of the first outer member 121 and the second outer member 122. Specific examples of the bonding type between the peripheral edge portions include fusion and bonding using an adhesive, a pressure-sensitive adhesive, and the like. Specific examples of the connecting member include yarn, pins, rivets, and the like.

[0479] (External material 120A)

[0480] Fig.36 1 is a cross-sectional view showing a configuration embodiment of an external material 120A. The external material 120 includes a first external member 123 and a second external member 124. The first external member 123 and the second external member 124 are preferably flexible. The first external member 123 and the second external member 124 preferably each have a film shape. The laminate 10 is sandwiched between the first external member 123 and the second external member 124. The first external member 123 covers the rear surface of the laminate 10. The first external member 123 has an opening 123A. A portion of the rear surface of the laminate 10 is exposed through the opening 123A. The second external member 124 covers the front surface of the laminate 10. The second external member 124 has an opening 124A. A portion of the front surface of the laminate 10 is exposed through the opening 124A. The first external member 123 and the second external member 124 may be light-transmissive or light-proof. The first external member 123 and the second external member 124 may be colored.

[0481] The peripheral edge portions of the first outer member 123 and the second outer member 124 are bonded to each other.

[0482] The bonding type between the peripheral edge portions is similar to that of the outer material 120 .

[0483] In the exterior material 120A having the above configuration, as Fig.37 As shown, a peripheral edge portion of outer material 120A is connected to article 101 by at least one connecting member 102. Outer material 120 is similarly connected to article 101.

[0484] (Variant 2)

[0485] In the second embodiment, the embodiment in which the recording medium 100 is fixed to the article 101 by at least one connecting member 102 has been described. Fig.38 As shown, record 100 may be secured to article 101 via adhesive layer 103 .

[0486] The adhesive layer 103 is provided between the article 101 and the rear surface of the recording body 100. The adhesive layer 103 adheres the article 101 and the rear surface of the recording body 100 to each other. For example, the adhesive layer 103 is a pressure-sensitive adhesive layer or an adhesive layer. In this specification, the pressure-sensitive adhesive layer is a layer containing a pressure-sensitive adhesive. The adhesive layer is a layer containing an adhesive.

[0487] (Variant 3)

[0488] The recorder 100 can be used for personal ID identification of livestock (e.g., Japanese beef, etc.), fisheries (e.g., tuna, pontoon, etc.), and racehorses. The recorder 100 can be used as an ear tag. The recorder 100 can be embedded in a collar, spiral, hoop, etc.

[0489] <4 Second Embodiment>

[0490] [Configuration of Recording Body 200]

[0491] Fig.39 : is a plan view showing an example of the appearance of a recording medium 200 according to the second embodiment. Fig.40 2 is a cross-sectional view showing a configuration example of a recording body 200 according to a second embodiment. The recording body 200 may be a display board such as a digital board. The recording body 200 may have a planar shape or a curved shape. The recording body 200 includes a white substrate 201, an adhesive layer 202, a laminate 10, an adhesive layer 203, and a cover layer 204 in sequence. In the second embodiment, the white substrate 201 and the cover layer 204 constitute an external material. The recording body 200 may further include at least one of an ultraviolet cutting layer or a gas barrier layer on the cover layer 204. Of the two main surfaces of the recording body 200, the surface on the cover layer 204 side is a display surface side.

[0492] (White substrate 201)

[0493] The white substrate 201 has a white color. The white color of the white substrate 201 may be a background color of a pattern or the like recorded in the recording member 20. The white substrate 201 is a supporting substrate that supports a layer laminated on the white substrate 201. The white substrate 201 has a predetermined shape such as a rectangle in a plan view. Here, the so-called top view refers to a top view when the white substrate 201 is observed from a direction perpendicular to the supporting surface. The white substrate 201 may be a flat plate.

[0494] The white base material 201 includes, for example, plastic and at least one white pigment. The white base material 201 may include at least one selected from the group consisting of a colorant, an antistatic agent, a flame retardant, a surface modifier, etc. as needed. The at least one white pigment includes, for example, at least one selected from the group consisting of titanium white, magnesium carbonate, zinc oxide, barium sulfate, silicon dioxide, talc, clay, calcium carbonate, etc. As the material of the plastic, a material similar to the base material 11 of the laminate 1 can be exemplified.

[0495] (Adhesive layers 202 and 203)

[0496] The adhesive layer 202 is provided between the white substrate 201 and the laminate 10, and the white substrate 201 and the laminate 10 are bonded to each other. The adhesive layer 202 is provided between the laminate 10 and the cover layer 204, and the laminate 10 and the cover layer 204 are bonded to each other. The adhesive layers 202 and 203 are preferably light-transmissive. Each of the adhesive layers 202 and 203 is a pressure-sensitive adhesive layer or an adhesive layer.

[0497] (Laminate 10)

[0498] A pattern, a picture, a photo, a character, or a combination of two or more thereof (hereinafter, referred to as “pattern etc.”) may be recorded in the recording body 200. Authentication information may be included in the recording body 200, specifically, in the recording member 20.

[0499] The substrate 11 of the recording member 20 included in the laminate 10 is preferably light-transmissive. As a result, the background of the pattern or the like recorded in the recording member 20 can be made white. The laminate 10 may be any one of the laminates 1 to 8 described above.

[0500] (cover layer 204)

[0501] The covering layer 204 is light-transmissive. The covering layer 204 may be transparent or colored in a predetermined color. The covering layer 204 covers the front surface of the laminate 10 and can inhibit moisture and the like from entering the laminate 10. The covering layer 204 has, for example, a plate shape. The surface of the covering layer 204 (the surface opposite to the laminate 10) is, for example, planar. The covering layer 204 is a glass layer or a plastic layer. The covering layer includes, for example, soda glass, borosilicate glass, forsterite, lead glass, quartz glass, high strain point glass, and the like. As the material of the plastic layer, a material similar to that of the substrate 11 can be cited, and acrylic resin is preferred.

[0502] [Modifications]

[0503] (Variant 1)

[0504] In the second embodiment, an example in which the recording body 200 is a display board such as a digital board has been described, but the recording body 200 is not limited to a display board. For example, the recording body 200 may be an item tag, a board, etc., or may be an accessory. Examples of accessories include key chains, rings, bracelets, brooches, pins, earrings, necklaces, hair accessories, buttons, etc.

[0505] The recording body 200 may be a metal object or a glass object. The metal object and the glass object include decorative items. The recording body 200 may be a vehicle inspection certificate seal, a coating in a glass frame, etc.

[0506] (Variant 2)

[0507] In the second embodiment, the example has been described in which the recording body 200 includes the white base material 201. However, Fig.41 As shown, the recording body 200 may include a metal substrate 205 instead of the white substrate 201. In this case, the metal substrate 205 can be used as a reflective layer. Examples of the material of the metal substrate 205 include a single substance such as aluminum, titanium, zinc, nickel, magnesium, copper, or iron, and an alloy containing two or more types thereof. Specific examples of the alloy include stainless steel (SUS), aluminum alloy, magnesium alloy, titanium alloy, etc.

[0508] (Variant 3)

[0509] In the second embodiment, the example has been described in which the recording body 200 includes the white base material 201. However, Fig.42 As shown, the recording body 200 may include a glass substrate 206 instead of the white substrate 201. As the material of the glass substrate 206, for example, a material similar to that of the glass layer in the cover layer 204 can be exemplified.

[0510] (Variant 4)

[0511] like Fig.43 As shown, the recording member 200 may further include a covering material 207. In this case, the glass substrate 206, the covering layer 204, and the covering material 207 constitute an exterior material. The covering material 207 covers the side surface of the laminate 200A in which the glass substrate 206, the adhesive layer 202, the laminate 10, the adhesive layer 203, and the covering layer 204 are laminated in this order. The covering material 207 preferably covers at least the side surface of the laminate 10, and particularly preferably covers all the side surfaces of the glass substrate 206, the adhesive layer 202, the laminate 10, the adhesive layer 203, and the covering layer 204. The covering material 207 covers the side surface of the laminate 200A, whereby it is possible to suppress the entry of moisture and the like into the recording member 20. Therefore, the weather resistance of the recording member 20 can be improved.

[0512] The covering material 207 includes, for example, at least one of an ultraviolet curable resin or a thermosetting resin. The covering material 207 may include fine particles as needed. Examples of the fine particles include particles containing metal oxides such as silicon oxide (SiO X ) and other inorganic particles.

[0513] (Variant 5)

[0514] like Fig.44 A and Fig.44 B, the recording body 200 may further include a housing 208. The housing 208 accommodates the laminate 200A in which the white base material 201, the adhesive layer 202, the laminate 10, the adhesive layer 203, and the cover layer 204 are sequentially laminated. Examples of the housing include a housing, a frame, etc. The housing can be used to accommodate electronic devices, etc. Fig.44 A and Fig.44 B shows an example in which the housing 209 is a housing having an opening on the front surface side of the laminated body 10 .

[0515] In Modification 4, it is not necessary to provide the adhesive layer 202 and the adhesive layer 203. In this case, preferably, the side surfaces of the white base material 201, the laminated body 10, and the cover layer 204 are fitted to the side wall portion of the housing 208 and held by the housing 208. An image including a painting, a photograph, a character, a figure, a symbol, a pattern, a color, or a combination thereof (hereinafter, referred to as an "image such as a painting") may be drawn on the laminated body 10. As a material for the housing 208, a material similar to that of the exterior material 110 in the first embodiment may be exemplified.

[0516] (Variant 6)

[0517] like Fig.45 A and Fig.45 As shown in FIG. 2B , the recording body 200 may include a housing 209 having at least one opening 209A. The at least one opening 209A is formed in the housing 209 at a position facing the front surface of the laminated body 10 .

[0518] A pattern or the like may be drawn on the laminate 10. The pattern or the like may be drawn at a position facing the opening 209A. In this case, the user can visually recognize the pattern or the like through the opening 209A. The recording body 200 according to Modification 6 is preferably an accessory such as a keychain.

[0519] (Variant 7)

[0520] In the second embodiment, an example has been described in which the surface of the cover layer 204 is a flat surface, but the surface of the cover layer 204 may have a flat surface. Fig.46The curved surface shape shown in . Embodiments of the curved surface include a protruding curved surface protruding in a direction away from the front surface of the laminate 10, a concave curved surface concave in a direction close to the front surface of the laminate 10, a free curved surface, etc. Embodiments of the protruding curved surface and the concave curved surface include a substantially cylindrical surface, a substantially spherical surface, a parabolic surface, etc. Here, the substantially cylindrical surface, the substantially spherical surface, and the substantially parabolic surface include a cylindrical surface, a spherical surface, and a parabolic surface, respectively. The surface shape of the covering layer 204 is not limited to a plane shape and a curved shape, and may be a shape having a polygonal shape, such as a cross section of a triangular shape, etc.

[0521] (Variant 8)

[0522] In the second embodiment, the example has been described in which the recording body 200 includes the white base material 201. However, Fig.47 As shown, the recording body 200 may include a metal substrate 210 instead of the white substrate 201. The metal substrate 210 may have a plate shape. The metal substrate 210 has a recess 210A on one main surface. A laminate 200B in which an adhesive layer 202, a laminate 10, an adhesive layer 203, and a cover layer 204 are laminated in sequence is provided in the recess 210A. The laminate 200B may be assembled into the recess 210A, and the laminate 200B and the metal substrate 210 may be integrated with each other. In Modification 8, it is not necessary to provide the adhesive layer 202 and the adhesive layer 203.

[0523] (Variant 9)

[0524] like Fig.48 As shown, the recording body 200 may include an external material 211 instead of the white substrate 201 and the cover layer 204. The external material 211 covers the entirety of the laminate 200C in which the adhesive layer 202, the laminate 10, and the adhesive layer 203 are sequentially laminated. In Modification 9, the adhesive layer 202 and the adhesive layer 203 are provided as needed, and the adhesive layer 202 and the adhesive layer 203 do not need to be provided. That is, the entire laminate 10 may be covered with the external material 211. The external material 211 is preferably light-transmissive. The external material 211 includes, for example, glass or plastic. The external material 211 may include a stack of glass layers and plastic layers.

[0525] <5 Third Embodiment>

[0526] [Configuration of Recording Body 300]

[0527] Fig.49 A is a plan view of a recording medium 300 according to the third embodiment. Fig.49 B is along Fig.49A is a cross-sectional view taken along line AA in FIG. The recording body 300 may be a board on which an image such as a painting is drawn. The recording body 300 may be accommodated in a frame 310 .

[0528] (Record 300)

[0529] The recording body 300 includes, in order, a substrate 301, an adhesive layer 302, a laminate 10, an adhesive layer 303, and a surface material 304. In the third embodiment, the substrate 301 and the surface material 304 constitute an exterior material.

[0530] (Substrate 301)

[0531] The substrate 301 is preferably a white substrate. The substrate 301 supports the layers laminated on the substrate 301. The substrate 301 may have a function as a thickness adjusting material.

[0532] (Adhesive layers 302 and 303)

[0533] Adhesive layer 302 is provided between substrate 301 and laminate 10, and substrate 301 and laminate 10 are bonded to each other. Adhesive layer 303 is provided between laminate 10 and face material 304, and laminate 10 and face material 304 are bonded to each other. Adhesive layers 202 and 203 are preferably light-transmissive. Each of adhesive layers 302 and 303 is a pressure-sensitive adhesive layer or an adhesive layer.

[0534] (surface material 304)

[0535] The surface material 304 covers the front surface of the laminate 10 and protects the laminate 10. The surface material 304 is light-transmissive. The surface material 304 is a glass layer or a plastic layer. The plastic layer contains, for example, acrylic resin, vinyl chloride resin, etc.

[0536] (Laminate 10)

[0537] The laminate 10 may have a drawn region 305. By irradiating the recording member 20 of the laminate 10 with laser light L (see, for example, Fig.11 The recording member 20 of the laminate 10 is rewritable. In this case, an image such as a painting drawn on the recording body 300 can be newly rewritten.

[0538] The drawing area 305 may include authentication information. For example, the authentication information is recorded in at least one image such as an image of paint or matte paper, or in at least one image such as an image of paint or a schoolyard. The authentication information is information for confirming that the record 300 is official. The authentication information includes at least one selected from the group consisting of: (1) a logo image and / or a logo coating, (2) an invisible pattern, and (3) an artifact metric.

[0539] The laminate 10 may be any one of the laminates 1 to 8 described above, but is preferably any one of the laminates 5 to 8 in consideration of the size of the stretching range. Fig.49 B shows an example in which the laminate 10 is any one of the laminates 5 to 8 .

[0540] (Frame 310)

[0541] The frame 310 includes a frame material 311, a back plate 312, and a switch button 313. The frame material 311 is a main body of the frame 310, and accommodates the laminated body 10. The back plate 312 covers the rear surface of the recording body 300. The rotation button 313 supports the back plate 312.

[0542] [Drawing Method on Recording Material 300]

[0543] like Fig.49 As shown in FIG. 3B, in a state of being housed in the frame 310, the recording body 300 is irradiated with laser light L, and an image such as paint is drawn. In this case, drawing can be performed up to the position of the inner periphery of the frame material 311.

[0544] [Function and Effect]

[0545] In the recording body 300 according to the third embodiment, an image such as paint can be drawn to the position of the inner periphery of the frame material 311. Therefore, matte paper is unnecessary, and the overall feeling between the image such as paint and the frame 310 can be improved.

[0546] [Modifications]

[0547] (Variant 1)

[0548] In the third embodiment, an example in which the laminate 10 has one drawing region 305 has been described, but the laminate 10 may have two first drawing regions 306A and 306B and one second drawing region 307, as shown in FIG. Fig.50 A and Fig.50 B. The second drawing area 307 may surround the first drawing area 306A.

[0549] The first drawing areas 306A and 306B are formed by irradiating the recording body 300 with laser light L and drawing an image (first image) such as paint. The second drawing area 307 is formed by irradiating the recording body 300 with laser light L and drawing an image of matte paper or an image of canvas (second image).

[0550] In the above embodiment, the embodiment in which the laminate 10 has two first stretch regions 306A and 306B has been described, but the laminate 10 may have one first stretch region 306A. In this case, the second drawing region 307 may have a closed loop shape along the inner periphery of the frame material 311 and surround the first drawing region 306A.

[0551] A combination of an image such as paint and an image of matte paper may be a prescribed combination. In this case, by confirming the combination, it can be confirmed that the frame 310 accommodating the record body 300 is an official frame.

[0552] In the recording medium 100 according to Modification 1, an image can be drawn on matte paper of free size, free color, and free design. Therefore, the size, color, and design of the matte paper can be selected according to an image such as a painting drawn on the recording medium 300.

[0553] (Variant 2)

[0554] In the third embodiment, the example in which the recording body 300 is irradiated with the laser light L in a state where the recording body 300 is accommodated in the frame 310 has been described. Fig.51 As shown, in a state where the recording body 300 is not accommodated in the frame 310, the recording body 300 can be irradiated with the laser L, and an image such as paint can be drawn. At this time, it is preferable to perform drawing in consideration of the size of the frame 310. For example, drawing can be performed up to a position corresponding to the inner periphery of the frame material 311. Note that in Fig.51 , the frame material 311 indicated by the two-dot chain line actually indicates the position of the frame material 311 when the recording body 300 is accommodated in the frame 310.

[0555] (Variant 3)

[0556] In the third embodiment, an example has been described in which the recording body 300 is accommodated in the frame 310, but an image of the frame may be drawn on the recording body 100. Fig.52As shown in , the laminate 10 includes a drawing area (first drawing area) 305 and a frame drawing area (second drawing area) 305A. The image of the frame (second image) is drawn in the frame drawing area. The frame drawing area 305A is preferably formed along the peripheral edge portion of the laminate 10. The frame drawing area 305A may have a rectangular ring shape in a plan view. The drawing area 305 is set inside the frame drawing area 305A. The drawing area 305 and the frame drawing area 305A may be adjacent to each other, or an image of matte paper and / or an image of canvas may be drawn between the drawing area 305 and the frame drawing area 305A.

[0557] <6 Fourth Embodiment>

[0558] [Configuration of Recording Body 400]

[0559] Fig.53 4 is a perspective view showing an example of the appearance of a record body 400 according to the fourth embodiment. The record body 400 is a temple provided in the glasses 410. The record body 400 is detachably connected to the surrounding end piece 411 via a hinge 412. The glasses 410 also include sunglasses. In the fourth embodiment, an example in which the record body 400 is glasses will be described, but the record body 400 may be an accessory such as a keychain or the like.

[0560] Fig.54 4 is a cross-sectional view showing a configuration example of a recording body 400 according to the fourth embodiment. The recording body 400 includes a laminated body 10 and an exterior material 421 .

[0561] (external material 421)

[0562] The exterior material 421 covers the entire laminate 10. The exterior material 421 is light-transmissive. The exterior material 421 may have transparency to visible light or may be colored. The exterior material 421 includes plastic. As the plastic, the same material as the substrate 11 can be cited.

[0563] (Laminate 10)

[0564] Patterns and the like can be recorded in the laminate 10. The laminate 10 can be any one of the above-mentioned laminates 1 to 8. At least one piece of authentication information can be included in the laminate 10, specifically, in the recording member 20. The authentication information can be recorded in, for example, a pattern and the like. The authentication information can be similar to the authentication information in the fifth embodiment described later. The laminate 10 can be rewritable or can be written once. In the case where the laminate 10 is rewritable, the recording body 400 can be recycled. In the case where the laminate 10 is written once, an undrawn laminate 10 is prepared, and a pattern and the like according to the user's requirements can be drawn out at a store or the like. In the case where the recording body 400 has a curved surface, a jig can be used for drawing. Drawing can be performed using autofocus.

[0565] The recording body 400 is formed by, for example, insert molding. More specifically, for example, the recording body 400 is formed by arranging the laminated body 10 at a predetermined position of a mold, then injecting a molten resin into the mold, and solidifying the molten resin.

[0566] [Function and Effect]

[0567] Since the recording body 400 according to the fourth embodiment includes the laminated body 10 , after the laminated body 10 is manufactured, a pattern or the like can be drawn on the laminated body 10 in a store or the like according to a customer's request.

[0568] Therefore, a pattern or the like may be drawn on an item such as the glasses 410 according to seasons, skin color, fashion, etc. Therefore, a design suitable for user preferences or the like may be applied to the glasses 410 .

[0569] An image that changes depending on the user can be drawn on the laminate 10. Therefore, it is unlikely that the same article (glass 410, etc.) exists. Therefore, the effect of preventing the theft of articles is also obtained.

[0570] Since the exterior material 421 covers the entire laminated body 10, scratches and stains can be suppressed. In addition, contact between the recording member 20 containing a coloring compound or the like and a human body can be suppressed.

[0571] [Modifications]

[0572] (Variant 1)

[0573] like Fig.55 As shown, the recording body 400 may include a laminate 430 instead of the laminate 10. The laminate 430 sequentially includes a resin layer 431, a bonding layer 432, the laminate 10, a bonding layer 433, and a resin layer 434. The laminate 430 may include a metal layer instead of the resin layer 431.

[0574] The bonding layer 432 is disposed between the resin layer 431 and the laminate 10, and the resin layer 431 and the laminate 10 are bonded to each other. The bonding layer 433 is disposed between the laminate 10 and the resin layer 434, and the laminate 10 and the resin layer 434 are bonded to each other. The bonding layers 432 and 433 are light-transmissive. Each of the bonding layers 432 and 433 is a pressure-sensitive adhesive layer or an adhesive layer. The resin layers 431 and 434 are light-transmissive. Each of the resin layers 431 and 434 is, for example, a plastic layer. As the material of the plastic layer, a material similar to that of the substrate 11 can be embodied.

[0575] For example, the recording medium 400 having the above configuration is prepared as follows. First, Fig.56 As shown in A, bonding layers 432 and 433 are formed on the first main surface and the second main surface of the laminate 10, respectively. Fig.56 As shown in FIG. 4B, the resin layer 431 is bonded to the first main surface of the laminate 10 through the bonding layer 432, and the resin layer 434 is bonded to the second main surface of the laminate 10 through the bonding layer 433. As a result, the laminate 430 is obtained. Next, the outer periphery of the laminate 430 is coated with a liquid resin, and the resin is cured to obtain Fig.55 Record 400 is shown.

[0576] (Variant 2)

[0577] like Fig.57 As shown, the recording body 400 may include a resin layer 435 instead of the external material 421. The resin layer 435 covers the surface of the laminate 430 on the resin layer 434 side and covers the side surface of the laminate 430. The resin layer 435 is, for example, a plastic layer. The laminate 430 does not necessarily include the resin layer 434. In this case, the adhesive layer 433 is provided between the laminate 10 and the resin layer 435, and adheres the laminate 10 and the resin layer 435 to each other.

[0578] (Variant 3)

[0579] like Fig.58 As shown in FIG. 4 , the resin layer 431 may have a housing 431A. A laminate 430A in which a bonding layer 432, a laminate 10, a bonding layer 423, a resin layer 424, and a resin layer 436 are sequentially laminated is housed in the housing 431A. The recording body 400 may include a metal layer instead of the resin layer 431.

[0580] The resin layer 436 is light-transmissive. The resin layer 436 includes, for example, a potting material. The potting material includes, for example, at least one selected from the group consisting of a polyurethane resin, an epoxy resin, and a silicone resin. The resin layer 436 is formed by applying and curing a liquid potting material. The recording body 400 according to the modification 3 may be an accessory such as a keychain.

[0581] (Variant 4)

[0582] The recording body 400 may include a barrier film. This can inhibit oxygen, moisture, etc. from entering the laminate 10. For example, the barrier film may cover the surface of the exterior material 421 or the surface of the laminate 10.

[0583] <7 Fifth Embodiment>

[0584] [Configuration of Recording Body 500]

[0585] Fig.59 A is a front view showing an example of the appearance of a recording body 500 according to the fifth embodiment. Fig.59 B is a side view showing an example of the appearance of a recording medium 500 according to the fifth embodiment. The recording medium 500 is soot. The recording medium 500 includes a face portion 510 and a backing portion 520.

[0586] The face portion 510 includes an outer material 511 and a laminate 10. The outer material 511 covers the laminate 10. The outer material 511 is light-transmissive. The outer material 110 may have transparency or may be colored. The backing portion 520 includes a support rod 521 and a fastener 522. The support rod 521 rises vertically from the rear surface of the outer material 511. The fastener 522 is disposed at the distal end of the support rod 521.

[0587] Patterns and the like may be recorded in the laminate 10. The design of the pattern and the like may be changed according to the sales cycle (e.g., sales month) of the record 500, the region of the record 500, and the like. At least one piece of authentication information may be included in the laminate 10, specifically, in the recording member 20. The authentication information may be recorded in, for example, a pattern and the like. The authentication information is information for authenticating the owner of the record 500. For example, the authentication information is the date of birth of the owner of the record 500, an anniversary date associated with the owner of the record 500, a serial number (Serial ID), and the like, and these information may be used alone or in combination of two or more thereof. Data associated with the serial number may be obtained via the Internet, and the like. In this way, it is not necessary to record information other than the serial number in the record body 500. An application may be used to obtain a purchase (use) history associated with a serial number, and the like.

[0588] At least one piece of authentication information includes, for example, at least one item selected from the group consisting of: (1) an identification image and / or an identification code, (2) an invisible pattern, and (3) an artifact metric. (1) The identification image and / or the identification coating can be recorded in the laminate 10 in a visually recognizable size. (2) The invisible pattern cannot be visually confirmed, but can be recorded in a size that can be confirmed by an optical microscope. (3) The artifact metric can be a random pattern formed during the manufacture of the laminate 10. (1) When the image is drawn on the laminate 10, the identification image and / or the identification coating and (2) the invisible pattern can be written on the laminate 10 together with the image. The artifact metric refers to a random unique pattern owned by the individual of the artifact. This can occur naturally or can be given in advance. Specific embodiments of artifact metrics include light reflection patterns of granular materials randomly dispersed in the recording member 20, random spot patterns in the recording member 20 (for example, cracks during preparation, film thickness non-uniformity, etc.), magnetic patterns randomly arranged in the recording member 20, random patterns generated when drawing on the recording member 20, etc.

[0589] The authentication information may be recorded to appear black when viewed visually, but separated into cyan (C), magenta (M), and yellow (Y) when viewed with a microscope. The authentication information may be recorded to be visible only when viewed through a lens (e.g., a mobile phone's camera).

[0590] A mark for defining the position where the artifact metric is read may be drawn on the laminate 10 (specifically, the recording member 20). The mark may be visible or invisible, but is preferably a mark that can be easily determined. Note that in embodiments other than this embodiment, that is, in the first to fourth, fifth and seventh embodiments, a mark may be drawn on the recording member 20 similarly.

[0591] The laminate 10 may be any one of the laminates 1 to 8 described above.

[0592] [Configuration of image authentication system]

[0593] In the following, reference will be made to Fig.60 The configuration example of the image authentication system is described. The image authentication system includes a first terminal device 81, a second terminal device 82, and an image authentication device 83. The first terminal device 81 is owned by, for example, a manufacturer of the recording body 500. The second terminal device 82 is owned by, for example, a seller of the recording body 500.

[0594] (First terminal device 81)

[0595] The first terminal device 81 can transmit and receive information to and from the image authentication device 83 via a network such as the Internet.

[0596] A drawing device 81A and an imaging device 81B are connected to the first terminal device 81. The first terminal device 81 controls the drawing device 81A and can cause the drawing device 81A to draw an image on the recording body 500. The first terminal device 81 controls the imaging device 81B and can cause the imaging device 81B to capture an image drawn on the recording body 500.

[0597] The first terminal device 81 may acquire authentication information from an image drawn on the recording body 500. The location of the authentication information may be drawn with a marker. In the case where the authentication information is an artifact metric, the first terminal device 81 may acquire the authentication information by acquiring the artifact metric from the image drawn on the recording body 500 and then extracting a feature quantity from the artifact metric. The first terminal device 81 may send the acquired authentication information to the image authentication device 83.

[0598] The first terminal device 81 includes a storage device 81C. The storage device 81C is, for example, a hard disk drive, etc. The first terminal device 81 can store the image of the record 500 acquired by the imaging device 81B, the authentication information, etc. in the storage device 81C.

[0599] The first terminal device 81 may be a general-purpose terminal device such as a personal computer, or may be a dedicated terminal device for controlling the drawing device 81A and the imaging device 81B.

[0600] (Drawing device 81A)

[0601] The drawing device 81A can draw an image by irradiating the color development layers 24, 27, and 30 with the first, second, and third laser beams, respectively, under the control of the first terminal device 81. The first, second, and third laser beams are preferably near-infrared laser beams. The first laser beam, the second laser beam, and the third laser beam preferably have peak wavelengths different from each other. As a result, an image can be selectively drawn on a desired color development layer among the color development layers 24, 27, and 30.

[0602] Specifically, the drawing device 81A can be used to draw 1 The first laser beam having a peak wavelength irradiates the color development layer 24 to make the color development layer 24 develop magenta. 2 The drawing device 81A can make the color developing layer 27 develop cyan by irradiating the color developing layer 27 with a second laser beam having a peak wavelength at λ. 3 The third laser beam having a peak wavelength at irradiates the color development layer 30, and the drawing device 81A can make the color development layer 30 display yellow. The focal points of the first laser beam, the second laser beam and the third laser beam are adjusted to the color development layers 24, 27 and 30 respectively.

[0603] (Imaging device 81B)

[0604] The imaging device 81B captures an image drawn on the record 500 under the control of the first terminal device 81, and transmits the image to the first terminal device 81. The imaging device 81B is, for example, a camera or the like.

[0605] (Second terminal device 82)

[0606] The second terminal device 82 can transmit and receive information to and from the image authentication device 83 via a network such as the Internet.

[0607] The drawing device 82A and the imaging device 82B are connected to the second terminal device 82. The second terminal device 82 controls the drawing device 82A and enables the drawing device 82A to draw an image on the recording body 500. The second terminal device 82 controls the imaging device 82B and enables the imaging device 82B to capture an image drawn on the recording body 500.

[0608] The second terminal device 82 may acquire authentication information from the image drawn on the recording body 500. In the case where the authentication information is an artifact metric, the second terminal device 82 may acquire the authentication information by acquiring the artifact metric from the image drawn on the recording body 500 and then extracting a feature amount from the artifact metric. The first terminal device 81 may transmit the acquired authentication information to the image authentication device 83.

[0609] The second terminal device 82 may be a general-purpose terminal device such as a personal computer, or may be a dedicated terminal device for controlling the drawing apparatus 82A and the imaging device 82B.

[0610] (Drawing device 82A)

[0611] Drawing device 82A draws an image by irradiating color development layers 24, 27 and 30 with first, second and third laser beams respectively under the control of second terminal device 82. Details of the drawing operation of drawing device 82A are similar to those of drawing device 81A.

[0612] (Imaging device 82B)

[0613] The imaging device 82B captures an image drawn on the record 500 under the control of the second terminal device 82, and transmits the image to the second terminal device 82. The imaging device 82B is, for example, a camera or the like.

[0614] (Image Authentication Device 83)

[0615] The image authentication device 83 may receive information from the first terminal device 81 and the second terminal device 82 , and transmit information to the first terminal device 81 and the second terminal device 82 via a network such as the Internet.

[0616] The image authentication device 83 includes a storage device 83A. The storage device 83A is, for example, a hard disk drive, etc. The image authentication device 83 can store information received from the first terminal device 81 and the second terminal device 82 in the storage device 83A. The storage device 83A stores, for example, an image of the record 500, authentication information of the record 500, a solid identification number of the record 500, information associated with the solid identification number, etc.

[0617] The image authentication device 83 may store the image of the record 500, the authentication information, etc. received from the first terminal device 81 in the storage device 83A. The image authentication device 83 compares the authentication information received from the second terminal device 82 with the authentication information stored in the storage device 83A, and notifies the second terminal device 82 of the comparison result. Specifically, the image authentication device 83 compares the authentication information received from the second terminal device 82 with the authentication information stored in the storage device 83A, and when the comparison is obtained, the image authentication device 83 may notify the second terminal device 82 that the record 500 is authentic. On the other hand, in the case where the comparison is not obtained, the image authentication device 83 may notify the second terminal device 82 of the fact that the record 500 is a counterfeit. The image authentication device 83 may be a server such as a cloud server.

[0618] [Artifact metric registration and certification method (1)]

[0619] In the following, we will refer to Fig.61 and Fig.62 An artifact metric registration and authentication method (1) is described.

[0620] First, in step S111, the recording member 20 is manufactured. Next, in step S112, the first terminal device 81 controls the drawing device 81A and draws a mark on the laminate 10. Next, in step S113, the first terminal device 81 controls the imaging device 81B, captures the image drawn on the laminate 10, and acquires the artifact metric from the captured image at the position defined by the mark. The image including the artifact metric may be acquired from the front surface side of the recording body 500 or may be acquired from the rear surface side of the recording body 500. Note that the order of steps S112 and S113 may be reversed. That is, after acquiring the artifact metric, the first terminal device 81 may draw a mark at the acquisition position.

[0621] Next, in step S114, the first terminal device 81 extracts a feature quantity (authentication information) from the acquired artifact measurement, and sends the feature quantity to the image authentication device 83. At this time, the first terminal device 81 may store the feature quantity extracted in step S114 in the storage device 81C. Next, in step S114, the image authentication device 83 stores the feature quantity received from the first terminal device 81 in the storage device 83A. Next, in step S115, the recording member 20 is cut into a predetermined size.

[0622] Next, in step S121, the laminate 10 having a prescribed size is incorporated into the record 500. Next, in step S122, the second terminal device 82 controls the drawing device 82A and draws a pattern or the like on the laminate 10. The pattern or the like is selected according to the request of the customer. Next, in step S123, the record 500 is circulated. Next, in step S124, the second terminal device 82 controls the imaging device 81B, captures the image drawn on the laminate 10 of the record 500, and acquires the artifact metric from the captured image at the position defined by the mark definition.

[0623] Next, in step S125, the second terminal device 82 extracts a feature amount (authentication information) from the acquired artifact metric, and transmits the feature amount to the image authentication device 83. Next, in step S126, the image authentication device 83 compares the feature amount received from the first terminal device 81 with the feature amount stored in the storage device 83A, and notifies the second terminal device 82 of the comparison result.

[0624] When the feature amount is matched in step S126, in step S127, the image authentication device 83 transmits the personal identification information to the second terminal device 82 in response to the request from the second terminal device 82. Subsequently, in step S127, the image authentication device 83 transmits information associated with the personal identification information to the second terminal device 82 in response to the request from the second terminal device 82.

[0625] [Artifact metric registration and certification method (2)]

[0626] In the following, we will refer to Fig.63 and Fig.64 Describe the artifact metric registration and authentication method (2).

[0627] First, in step S211, the recording member 20 is manufactured. Next, in step S212, the recording member 20 is cut into a predetermined size.

[0628] Next, in step S221, the laminate 10 is incorporated into the recording body 500. Next, in step S222, the second terminal device 82 controls the drawing device 82A to draw a pattern or the like on the laminate 10. The pattern or the like is selected according to the request of the customer. Next, in step 223, the second terminal device 82 uses the pattern or the like drawn in step S222 as a mark to determine the acquisition position of the artifact metric. Next, in step S224, the second terminal device 82 acquires the artifact metric from the acquisition position determined in step S223.

[0629] Next, in step S225 , the second terminal device 82 extracts a feature amount (authentication information) from the artifact metric acquired in step S224 , and transmits the feature amount to the image authentication device 83 .

[0630] The subsequent steps S226 to S231 are the same as steps S123 to S128.

[0631] [Modifications]

[0632] (Variant 1)

[0633] In the fifth embodiment, an example in which the record body 500 is a cufflink has been described, but the record body 500 may be an accessory other than a cufflink, jewelry, etc. Examples of accessories other than a cover include a keychain, a ring, a bracelet, a brooch, a pin, an earring, a necklace, a hair ornament, a button, a sign plate, etc.

[0634] (Variant 2)

[0635] The exterior material 511 may have a light transmission portion 511A such as a through hole. In this case, an image of the recording body 500 (including an image of authentication information) can be acquired from the light transmission portion 511A by the imaging devices 81B and 82B.

[0636] (Variant 3)

[0637] The image authentication system and the artifact metric registration and authentication method described in the fifth embodiment can be used for registration, authentication, etc. of artifact metrics included in the record 100 according to the first embodiment, the record 200 according to the second embodiment, the record 300 according to the third embodiment, the record 400 according to the fourth embodiment, the record 600 according to the sixth embodiment, and the record 700 according to the seventh embodiment.

[0638] <8 Sixth Implementation Method>

[0639] [Configuration of Recording Body 600]

[0640] Fig.65: is a plan view showing an example of the appearance of a recording medium 600 according to the sixth embodiment. Fig.66 A is a diagram illustrating the Fig.65 6. The recording body 600 is a press-through packaging (PTP) packaging sheet. The recording body 600 as a PTP packaging sheet includes a container film 602 having a plurality of pockets 603 and a cover film 601 provided on the back of the container film 602 to close the pockets 603. In the sixth embodiment, the container film 602 and the cover film 601 constitute an exterior material. Each of the pockets 603 accommodates a flat plate 604 as an object to be accommodated.

[0641] The container film 602 may be light-transmissive. The container film 602 includes, for example, a resin material. The resin material includes, for example, at least one selected from the group consisting of polyvinylidene chloride resins, cycloolefin copolymer resins, polytrifluoroethylene resins, polyvinyl chloride resins, polyethylene resins, and polypropylene resins. The cover film 601 includes, for example, an aluminum foil.

[0642] like Fig.66 As shown in A, the container film 602 may include a laminate 10. Fig.66 B and Fig.66 As shown in C, a laminate 10 may be provided between a cover film 601 and a container film 602. Fig.66 As shown in B, the laminate 10 may be provided in a portion of the region other than the plurality of pocket portions 603, or as shown in Fig.66 As shown in FIG. 6C, the laminate 10 may be provided in the entire region except for the plurality of pockets 603. Authentic product guarantee information may be recorded in the laminate 10. The authentic product guarantee information is information for guaranteeing that the recording body 600 (i.e., the PTP packaging sheet) is an authentic product. The authentic product guarantee information is, for example, a bar coating, a QR code (registered trademark), or a combination thereof.

[0643] The laminate 10 may be any one of the laminates 1 to 8 described above.

[0644] [Function and Effect]

[0645] In the recording body (PTP packaging sheet) 600 according to the sixth embodiment, information such as genuine product guarantee information is recorded in the laminate 10 included in the PTP packaging sheet. Therefore, compared with the case where a seal is installed on the PTP packaging sheet, the anti-counterfeiting performance is improved. In addition, since the information can be recorded in the laminate 10 by laser, the work of imparting the information to the PTP packaging sheet can be reduced compared with the case where a seal describing the information is attached to the PTP packaging sheet.

[0646] [Modifications]

[0647] (Variant 1)

[0648] In the sixth embodiment, an example in which the genuine product assurance information is recorded in the laminate 10 has been described, but the information recorded in the laminate 10 is not limited to this example. For example, drug product related information related to the drug product (tablet 604) contained in the PTP packaging sheet may be recorded in the laminate 10. The drug product related information includes at least one selected from the group consisting of the type (use) of the drug product (tablet 604), dosage, dosage date and time, number of dosages, and the like.

[0649] Specifically, Fig.67 As shown in FIG. 6 , the type (use) of the drug product (tablet 604) (e.g., headache medicine, etc.) can be recorded in the laminate 10. Fig.68 As shown, the number of doses (e.g., twice a day, etc.) and the dosage (e.g., two tablets each time, etc.) of the drug product (tablets 604) can be recorded in the laminate 10. Fig.69 In the embodiment, the dosage date and time of the drug (tablet 604) (for example, the month and date when the drug (tablet 604) is scheduled to be taken, etc.) can be recorded in the laminate 10. The information related to the pharmaceutical product can be as follows Fig.67 and Fig.68 The Japanese language is shown as follows Fig.70 The description may be written in a language other than Japanese (eg, English), or may be written in two or more languages.

[0650] (Variant 2)

[0651] In the sixth embodiment, the example in which the laminate 10 is provided in the portion other than the pocket portion 603 has been described. Fig.71 As shown, the laminate 10 may be disposed in the pocket 603. The drug-related information is preferably recorded in the laminate 10.

[0652] The laminate 10 may be provided in a portion of the cover film 601 corresponding to the lower side of the pocket portion 603. That is, the laminate 10 may be provided in a portion immediately below the flat plate 604. Therefore, the anti-counterfeiting performance of the recording body 600 may be improved.

[0653] (Variant 3)

[0654] In the sixth embodiment, an example has been described in which the laminate 10 is provided in the PTP packaging sheet, but the laminate 10 may be provided in a medicine other than the PTP packaging sheet.

[0655] Fig.72610 includes a laminate 10. The medicine container 610 includes a container portion 611 and a cover 612. The medicine container 610 is an embodiment of a recording body. The container portion 611 includes glass or plastic. The container portion 611 includes the laminate 10. The glass or plastic covering the laminate 10 is an embodiment of an external material. A trade name may be recorded in the laminate 10. At least one of authentic product guarantee information or drug-related information may be recorded in the laminate 10.

[0656] <9 Seventh Implementation Method>

[0657] [Configuration of Recording Body 700]

[0658] Fig.73 is a cross-sectional view showing a configuration example of a recording body 700 according to the seventh embodiment. Fig.74 7 is an exploded perspective view showing a configuration example of a recording body 700 according to the seventh embodiment. The recording body 700 is a pet plate. The pet plate is, for example, a dog license tag, an identification tag, etc. For example, when a municipality issues a dog license tag, drawing of the dog license tag is performed. Drawing of the identification tag is performed, for example, when an identification tag is issued by an identification tag issuing agency or an identification tag issuing store.

[0659] In the case where the contact address is recorded in the record body 700 by a QR code (registered trademark), character information such as a telephone number may be encoded. The contact address and personal number of the issuing source are encoded, and when the issuing source is notified of the lost pet and the personal number is protected together, the issuing source can contact the owner. In the case where a vaccination record is described in the record body 700, the record body 700 preferably includes a rewritable layer for describing the vaccination record. Addition or update of the vaccination date can be performed by a vaccination agency or a dog license tag / identification tag issuing source.

[0660] Hereinafter, an embodiment in which the recording body 700 is an identification label will be described. The recording body 700 includes a laminated structure 710 and an external material 720. The laminated structure 710 includes a laminated body 10A, an adhesive layer 711, a laminated body 10B, an adhesive layer 712, an intermediate layer 13 accommodating a recording member 20RE, an adhesive layer 713, and a laminated body 10C. Fig.74 Adhesive layers 711, 712 and 713 are not shown.

[0661] (Laminate 10A)

[0662] A QR code (registered trademark) as identification information and / or authentication information can be recorded in the laminate 10A. A license number can be recorded in the laminate 10A. The QR code (registered trademark) includes, for example, the contact address of the issuer of the record 700, a user number, etc. The user number is, for example, identification information for identifying a pet owner. The laminate 10A can be any one of the above-mentioned laminates 1 to 8. The recording member 20 of the laminate 10A is preferably written once. The recording member 20 of the laminate 10A may include a single color developing layer. The single color developing layer may be able to present black in the color developing state. The substrate 11 of the laminate 10A is preferably non-light-transmitting. Note that the identification information and / or authentication information is not limited to the QR code (registered trademark), and may be, for example, a serial number, fine characters, random shapes, etc. (e.g., artifact metrics), parallax, etc., and this information may be used alone or in combination of two or more thereof.

[0663] (Laminate 10B)

[0664] The owner's desired pattern or the like can be recorded in the laminate 10B. The laminate 10B may be any one of the above-described laminates 1 to 8. The recording member 20 of the laminate 10B may be rewritable or may be write-once.

[0665] (Recording member 20RE)

[0666] The date of vaccination may be recorded in the laminate 10B. The license number may be recorded in the recording member 20RE. The recording member 20RE may be the recording member 20 in the first embodiment, or may be any one of the recording members 20A to 20H in the modification of the first embodiment. The recording member 20RE may be rewritable. Note that in the case where the license number is recorded in the recording member 20RE, the recording member 20RE is preferably write-once.

[0667] (Laminate 10C)

[0668] The owner's desired pattern or the like can be recorded in the laminate 10C. The laminate 10C may be any one of the above-described laminates 1 to 8. The recording member 20 of the laminate 10C may be rewritable or may be write-once.

[0669] (Joining layers 711, 712 and 713)

[0670] The bonding layer 711 is arranged between the laminate 10A and the laminate 10B, and the laminate 10A and the laminate 10B are bonded to each other. The bonding layer 712 is arranged between the laminate 10B and the intermediate layer 13 accommodating the recording member 20RE, and the laminate 10B and the intermediate layer 13 accommodating the recording member 20RE are bonded to each other. The bonding layer 713 is arranged between the intermediate layer 13 accommodating the recording member 20RE and the laminate 10C, and the intermediate layer 13 accommodating the recording member 20RE and the laminate 10C are bonded to each other. The bonding layer 711 can be light-transmitting or non-light-transmitting. The bonding layers 712 and 713 are preferably light-transmitting. Each of the bonding layers 711, 712 and 713 is a pressure-sensitive adhesive layer or an adhesive layer.

[0671] [Example of use of recording medium 700]

[0672] In the following, reference will be made to Fig.75 An example of use of the record 700 is described.

[0673] (Manufacturer)

[0674] First, in step S11, the manufacturer manufactures identification labels. Next, in step S12, the manufacturer receives an order for identification labels from an issuer. Next, in step S13, the manufacturer ships the identification labels to the issuer.

[0675] (Issuer)

[0676] First, in step S21, the issuer orders an identification tag from a manufacturer. Next, in step S22, the issuer stocks the identification tags. Next, in step S23, the issuer receives an order for an identification tag from a user. Next, in step S24, the issuer stores the user's contact address in a cloud server, etc. At this time, the user's contact address is stored in association with the user number. Next, in step S25, the issuer draws a pattern, etc. on the identification tag. Examples of patterns, etc. include photos, license numbers, vaccination records, user numbers, etc. Next, in step S26, the issuer issues the identification tag to the user. Next, in step S27, the issuer searches the cloud server based on the user number that the lost pet finder has notified the issuer of, and extracts the user's contact address. Next, in step S28, the issuer contacts the user.

[0677] (user)

[0678] First, in step S31, the user orders an identification tag from a light transmitter. Next, in step S32, the user receives the identification tag from the issuer and attaches the identification tag to an item (e.g., a dog). Next, in step S33, the user receives a notification of finding a lost pet from the issuer and receives the lost pet from the lost pet finder.

[0679] (Lost Pet Finder)

[0680] First, in step S41, the lost pet finder finds and protects the lost pet. Next, in step S42, the lost pet finder reads the QR code (registered trademark) of the identification tag on the smart phone. Next, in step S43, the smart phone displays the contact address and user number of the issuer of the identification tag based on the QR code (registered trademark). Next, in step S44, the lost pet finder contacts the issuer by using the contact address of the issuer, and notifies the issuer of the user number. Next, in step S45, the lost pet finder hands the lost pet to the user.

[0681] [Modifications]

[0682] (Variant 1)

[0683] In the seventh embodiment, an example in which the base material 11 is provided for each of the laminate 10A and the laminate 10B has been described, but the base material 11 may be shared by the laminate 10A and the laminate 10B. In this case, the number of layers of the laminate structure 710 can be reduced.

[0684] (Variant 2)

[0685] In the seventh embodiment, the use example of the record body (article) has been described using the identification tag as an example, but the flowchart used for the description can also be applied to the authenticity determination and owner confirmation of the article, etc. of each embodiment by replacing the description of "identification tag" etc. with the article (e.g., accessories or pharmaceutical products) of each embodiment other than the seventh embodiment. In this case, the identification information and / or authentication information used for authenticity determination and owner confirmation is not limited to the QR code (registered trademark), and for example, a serial number, fine characters, random shapes, etc. (e.g., artifact measurement), parallax, etc. can be used. Note that these can be used alone or in combination of two or more thereof.

[0686] <10 Modification>

[0687] The embodiments and modified examples of the present disclosure have been specifically described above, but the present disclosure is not limited to the above-described embodiments and modified examples, and various modifications based on the technical idea of ​​the present disclosure can be made.

[0688] For example, the configurations, methods, steps, shapes, materials, numerical values, etc. described in the above-mentioned embodiments and modified examples are merely examples, and different configurations, methods, steps, shapes, materials, numerical values, etc. may be used as needed. The configurations, methods, steps, shapes, materials, numerical values, etc. of the above-mentioned embodiments and modified examples may be combined with each other without departing from the gist of the present disclosure.

[0689] In the numerical ranges described in the stages in the above embodiments and modifications, the upper limit or lower limit of the numerical range of a certain stage can be replaced by the upper limit or lower limit of the numerical range of another stage. Unless otherwise specified, the materials exemplified in the above embodiments and modifications can be used alone or in combination of two or more types thereof.

[0690] Furthermore, the present disclosure may also adopt the following configurations.

[0691] (1) A record comprising:

[0692] A laminate; and

[0693] an outer material covering at least a portion of a surface of the laminate, wherein

[0694] The laminate comprises:

[0695] Base material;

[0696] An intermediate layer is disposed on the substrate and has a receiving portion;

[0697] a recording member disposed in the receiving portion; and

[0698] A covering layer, provided on the middle layer,

[0699] The receiving portion is provided in a portion of the plane of the intermediate layer,

[0700] The receiving portion is a through hole penetrating along the thickness direction of the middle layer or a recessed portion recessed along the thickness direction of the middle layer.

[0701] The recording member includes a color developing layer, the color developing layer containing a coloring compound having an electron donating property, a developer having an electron accepting property, and a matrix resin,

[0702] The substrate, the intermediate layer and the cover layer comprise the same type of resin material, and

[0703] The base material and the intermediate layer are bonded to each other by fusion, and the intermediate layer and the cover layer are bonded to each other by fusion. (2)

[0705] A record, comprising:

[0706] A laminate; and

[0707] an outer material covering at least a portion of a surface of the laminate, wherein

[0708] The laminate comprises:

[0709] Base material;

[0710] Covering layer;

[0711] an intermediate layer disposed between the substrate and the cover layer and having a receiving portion; and

[0712] A recording member is disposed in the receiving portion,

[0713] The receiving portion is provided in a portion of the plane of the intermediate layer,

[0714] The receiving portion is a through hole penetrating the middle layer in the thickness direction of the middle layer or a recessed portion recessed in the thickness direction of the middle layer.

[0715] The recording member includes a color developing layer, the color developing layer containing a coloring compound having an electron donating property, a developer having an electron accepting property, and a matrix resin,

[0716] The substrate, the intermediate layer and the cover layer comprise the same type of resin material, and

[0717] The base material and the intermediate layer are bonded to each other by a heat-curing adhesive, and the intermediate layer and the cover layer are bonded to each other by a heat-curing adhesive. (3)

[0719] The record according to (1) or (2), wherein:

[0720] The resin material includes a thermoplastic resin. (4)

[0722] The record according to (1) or (2), wherein:

[0723] The resin material includes a polycarbonate-based resin. (5)

[0725] The record according to (1) or (2), wherein:

[0726] The resin material includes polyethylene terephthalate-based resin. (6)

[0728] A record according to (2), wherein

[0729] Heat-curing adhesives contain thermosetting resins. (7)

[0731] The recording medium according to any one of (1) to (6), wherein:

[0732] The color development layer is configured to be able to change the coloring state by laser, and

[0733] The change of coloring state is irreversible. (8)

[0735] The recording medium according to any one of (1) to (7), wherein:

[0736] The record component includes authentication information. (9)

[0738] A record according to (8), wherein

[0739] The authentication information includes artifact metrics. (10)

[0741] The recording medium according to any one of (1) to (9), wherein:

[0742] The external material includes a supporting substrate and a protective layer, and

[0743] The laminate is disposed between the supporting substrate and the protective layer. (11)

[0745] The recording medium according to any one of (1) to (9), wherein:

[0746] The outer material covers the entirety of the laminate. (12)

[0748] The recording medium according to any one of (1) to (9), wherein:

[0749] The outer material is the packaging sheet. (13)

[0751] The recording medium according to any one of (1) to (9), wherein:

[0752] The outer material includes a flexible first outer member and a flexible second outer member,

[0753] The laminate is sandwiched between the first exterior member and the second exterior member, and

[0754] The peripheral edge portions of the first outer member and the second outer member are bonded to each other or connected to each other by a connecting member. (14)

[0756] The recording medium according to any one of (1) to (13), wherein:

[0757] The exterior material includes leather, cloth, polymer resin, metal, glass, paper, wood, or a composite material of two or more thereof. (15)

[0759] The recording medium according to any one of (1) to (10), wherein:

[0760] drawing a first image and a second image surrounding the first image on a recording member, and

[0761] The second image includes an image of matte paper or an image of a frame. (16)

[0763] An article comprising the record according to any one of (1) to (15). (17)

[0765] The article according to (16), wherein

[0766] The item is an accessory or a pharmaceutical product.

[0767] (18) A record comprising:

[0768] a laminate structure in which a plurality of laminates are laminated; and

[0769] an outer material covering at least a portion of a surface of the laminate structure, wherein

[0770] The laminate comprises:

[0771] Base material;

[0772] An intermediate layer is disposed on the substrate and has a receiving portion;

[0773] a recording member disposed in the receiving portion; and

[0774] A covering layer, provided on the middle layer,

[0775] The receiving portion is provided in a portion of the plane of the intermediate layer,

[0776] The receiving portion is a through hole penetrating the middle layer in the thickness direction of the middle layer or a recessed portion recessed in the thickness direction of the middle layer.

[0777] The recording member includes a color developing layer, the color developing layer containing a coloring compound having an electron donating property, a developer having an electron accepting property, and a matrix resin,

[0778] The substrate, the intermediate layer and the cover layer comprise the same type of resin material, and

[0779] The base material and the intermediate layer are bonded to each other by fusion, and the intermediate layer and the cover layer are bonded to each other by fusion. (19)

[0781] A record, comprising:

[0782] a laminate structure in which a plurality of laminates are laminated; and

[0783] an outer material covering at least a portion of a surface of the laminate structure, wherein

[0784] The laminate comprises:

[0785] Base material;

[0786] Covering layer;

[0787] an intermediate layer disposed between the substrate and the cover layer and having a receiving portion; and

[0788] A recording member is disposed in the receiving portion,

[0789] The receiving portion is provided in a portion of the plane of the intermediate layer,

[0790] The receiving portion is a through hole penetrating along the thickness direction of the middle layer or a recessed portion recessed along the thickness direction of the middle layer.

[0791] The recording member includes a color developing layer, the color developing layer containing a coloring compound having an electron donating property, a developer having an electron accepting property, and a matrix resin,

[0792] The substrate, the intermediate layer and the cover layer comprise the same type of resin material, and

[0793] The base material and the intermediate layer are bonded to each other by a heat-curing adhesive, and the intermediate layer and the cover layer are bonded to each other by a heat-curing adhesive. (20)

[0795] A record according to (18) or (19), wherein:

[0796] Multiple laminates include:

[0797] at least one first laminate including a rewritable recording member; and

[0798] At least one second laminate includes a recording member that is write-once.

[0799] <11 Reference Examples and Examples>

[0800] Hereinafter, the present disclosure will be specifically described with reference to Examples and Examples, but the present disclosure is not limited to the Reference Examples and Examples.

[0801] [Reference Example 1-1]

[0802] First, a first adhesive layer was provided on a substrate, and then an intermediate layer was provided on the first adhesive layer. Next, a second adhesive layer was provided on the intermediate layer, and then a cover layer was provided on the second adhesive layer to obtain a laminated structure. Next, the laminated structure was heated and pressurized at a temperature of 120° C. to adhere the substrate and the intermediate layer to each other via the first adhesive layer, and to adhere the intermediate layer and the cover layer to each other via the second adhesive layer. As a result, a target laminate was obtained.

[0803] As the substrate, the first adhesive layer, the intermediate layer, the second adhesive layer, and the cover layer, the following materials were used.

[0804] Cover layer: a polycarbonate film having a thickness of 50 μm (hereinafter, referred to as “PC film”).

[0805] Second intermediate layer: Epoxy resin layer (thermosetting resin layer) having a thickness of 5 μm

[0806] Middle layer: PC film with a thickness of 100 μm

[0807] First adhesive layer: Epoxy-based resin layer (thermosetting resin layer) having a thickness of 5 μm

[0808] Substrate: PC film with a thickness of 25 μm

[0809] [Reference Example 1-2]

[0810] A laminate was obtained in a similar manner to Reference 1-1 except that the following materials were used as the substrate, the intermediate layer, and the cover layer.

[0811] Cover layer: a polyvinyl chloride film (hereinafter, referred to as "PVC film") having a thickness of 50 μm.

[0812] Middle layer: PVC vinyl film with 100 μm thickness

[0813] Substrate: PVC vinyl film with 25 μm thickness

[0814] [Reference Examples 1-3]

[0815] A laminate was obtained in a similar manner to Reference 1-1 except that the following materials were used as the substrate, the intermediate layer, and the cover layer.

[0816] Cover layer: a polyethylene terephthalate film (hereinafter, referred to as "PET film") having a thickness of 50 μm.

[0817] Middle layer: PET film with a thickness of 100 μm

[0818] Substrate: PET film with a thickness of 25 μm

[0819] [Reference Examples 1-4]

[0820] A laminate was obtained in a similar manner to Reference 1-1 except that the following materials were used as the substrate, the intermediate layer, and the cover layer.

[0821] Cover layer: PC film with 50 μm thickness

[0822] Middle layer: PVC film with a thickness of 100 μm

[0823] Substrate: PC film with a thickness of 25 μm

[0824] [Reference Examples 2-1, 2-2, 2-3 and 2-4]

[0825] A laminate was obtained in a manner similar to Reference Examples 1-1, 1-2, 1-3 and 1-4, except that the substrate, the intermediate layer and the covering layer were laminated to obtain a laminate structure, and then the laminate structure was heated and pressurized at a temperature of 180°C to fuse the substrate and the intermediate layer to each other and to fuse the intermediate layer and the covering layer to each other.

[0826] [evaluate]

[0827] The laminate obtained as described above was evaluated for adhesion, environmental friendliness, and durability as follows.

[0828] (Adhesion)

[0829] First, the average peel strength between the substrate and the intermediate layer and the average peel strength between the intermediate layer and the covering layer are measured. The average peel strength is measured by the method for measuring the average peel strength of the laminate described in the first embodiment. Next, the average peel strength measured is evaluated according to the following criteria. The evaluation results are shown in Table 1.

[0830] The average peel strength between the substrate and the intermediate layer and the average peel strength between the intermediate layer and the cover layer were both 5.0 N / cm or more.

[0831] ○: The average peel strength between the substrate and the intermediate layer and the average peel strength between the intermediate layer and the cover layer are both 3.5 N / cm or more.

[0832] ×: The average peel strength between the substrate and the intermediate layer and the average peel strength between the intermediate layer and the cover layer are both less than 3.5 N / cm.

[0833] (Environmental friendliness)

[0834] The environmental friendliness of the laminate was evaluated according to the following criteria.

[0835] ○: When the laminate is processed with insufficient equipment, harmful substances (specifically, dioxins) are unlikely to be generated.

[0836] ×: When the laminate is processed with insufficient equipment, there is a possibility that harmful substances (specifically, dioxins) are generated.

[0837] (Durability)

[0838] The durability of the laminate was evaluated according to the following standard in accordance with ISO / IEC10373-1. The evaluation results are shown in Table 1.

[0839] ○: No change in appearance (warping) after heating

[0840] ×: The appearance changes (warping) after heating

[0841] [Table 1]

[0842]

[0843]

[0844] * Change in appearance after heating (warping)

[0845] Table 1 is shown below.

[0846] Good adhesion can be obtained by bonding the substrate and the intermediate layer to each other, and bonding the intermediate layer and the cover layer to each other by a thermosetting resin or melting.

[0847] From the viewpoint of improving adhesiveness, it is preferred that the substrate and the intermediate layer be bonded to each other, and the intermediate layer and the cover layer be bonded to each other by fusion.

[0848] From the viewpoint of environmental friendliness, it is preferred to use a PC film or a PET film as each of the base material, the intermediate layer, and the cover layer.

[0849] From the viewpoint of improving durability, it is preferred to use a PC film or a PVC film as each of the base material, the intermediate layer, and the cover layer.

[0850] From the viewpoints of environmental friendliness and improved durability, it is preferred to use a PC film as each of the base material, the intermediate layer, and the cover layer.

[0851] (Examples 1 to 3)

[0852] First, by laminating the layers shown in Table 2, a Fig.15 Next, a PET film having a frame shape and a thickness of 100 μm was prepared (see Fig.13 ) as an intermediate layer, and the recording medium is loaded into the frame of the PET film. The thickness of the recording medium and the PET film is set to be substantially the same. Next, a laminate is obtained in a manner similar to Reference Example 2-1, except that an intermediate layer equipped with a recording medium is used as described above. Note that after laminating the substrate, the intermediate layer and the cover layer, the interface of the bonding recording medium is also treated by heating and pressurizing.

[0853] (Example 4)

[0854] A laminate was obtained in a similar manner to Example 1, except that a laminate having Fig. 22 A recording medium having a layer configuration shown in FIG.

[0855] (Example 5)

[0856] A laminate was obtained in a similar manner to Example 1, except that a laminate having Fig.17 A recording medium having a layer configuration shown in FIG.

[0857] (Example 6)

[0858] A laminate was obtained in a similar manner to Example 1, except that a laminate having Fig.18 A recording medium having a layer configuration shown in FIG.

[0859] (Example 7)

[0860] A laminate was obtained in a similar manner to Example 1, except that a laminate having Fig.19 A recording medium having a layer configuration shown in FIG.

[0861] (Example 8)

[0862] A laminate was obtained in a similar manner to Example 1, except that a laminate having Fig. 20 A recording medium having a layer configuration shown in FIG.

[0863] (Example 9)

[0864] A laminate was obtained in a similar manner to Example 1, except that a laminate having Fig.19 A recording medium having a layer configuration shown in FIG.

[0865] (Example 10)

[0866] A laminate was obtained in a similar manner to Example 1, except that a laminate having Fig.21 A recording medium having a layer configuration shown in FIG.

[0867] [evaluate]

[0868] The adhesiveness and durability of the laminate obtained as described above were evaluated as follows.

[0869] (Adhesion)

[0870] First, the average peel strength between the layers of the laminate is measured. The average peel strength is measured by the method for measuring the average peel strength of the laminate described in the first embodiment. Next, the average peel strength measured is evaluated according to the following standards. Among the average peel strengths between the layers of the laminate, the lowest average peel strength is shown in Table 2, Table 3 and Table 4. In addition, the position of the interface with the minimum average peel strength is shown in Table 2, Table 3 and Table 4.

[0871] ○: All average peel strengths between layers were 3.5 N / cm or more.

[0872] ×: At least one of the average peel strengths between layers is less than 3.5 N / cm.

[0873] (Anti-counterfeiting performance)

[0874] The anti-counterfeiting performance of the laminate was evaluated according to the following criteria.

[0875] ○: Satisfies at least one of the following conditions (1) or (2).

[0876] ×: Neither the following conditions (1) nor (2) are satisfied.

[0877] Condition (1): The average peel strength between each layer of the laminate is 3.5 N / cm or more.

[0878] Condition (2): The interface with the lowest average peeling force value is located between the color-developing layers.

[0879] (Maximum color rendering OD)

[0880] First, the maximum color development OD of the laminate was measured using a spectrocolorimetric densitometer eXact (manufactured by X-Rite Inc.). Next, the color development was evaluated according to the following criteria. The evaluation results are shown in Tables 2, 3, and 4.

[0881] ○: The maximum color development OD is 1.0 or more. When drawing a person, an OD value of 1.0 at which a person can be recognized is used as a reference.

[0882] ×: Maximum color development OD is less than 1.0. When the OD value is less than 1.0, it is difficult to recognize a person when drawing a person.

[0883] (Color gamut maintained after heating)

[0884] First, the color gamut retention rate after heating was measured using the eXact spectrophotometric colorimetric densitometer. Next, the color gamut retention rate after heating was evaluated according to the following criteria. The evaluation results are shown in Table 2, Table 3, and Table 4.

[0885] ○: The color gamut retention rate after heating is 80% or more.

[0886] ×: The color gamut retention rate after heating is less than 80%.

[0887] Note that when the color gamut preservation rate is 80% or more, when drawing a person, the color representation of the person is sufficient.

[0888] [Table 2]

[0889]

[0890]

[0891] [Table 3]

[0892]

[0893]

[0894] [Table 4]

[0895]

[0896]

[0897] The details of the members described in Table 2, Table 3 and Table 4 are as follows.

[0898] PC: PC film

[0899] PET: PET film

[0900] Easy-adhesion-treated PET: PET film subjected to easy-adhesion treatment (Diafoil (registered trademark) manufactured by Mitsubishi Chemical Corporation)

[0901] OCA: Optically Clear Adhesive

[0902] UV resin: UV curable resin layer (acrylic resin layer for hard coating)

[0903] Base polymer layer: a resin layer containing the same type of polymer as the base polymer contained in the adjacent color development layer (specifically, a polycarbonate-based resin layer)

[0904] Color development layer Y1: A color development layer comprising a yellow colorless dye, a developer, and a polycarbonate resin, wherein the content of the polycarbonate resin in the color development layer is 58% by mass

[0905] Color development layer Y2: A color development layer comprising a yellow colorless dye, a developer, and a polycarbonate resin, wherein the content of the polycarbonate resin in the color development layer is 58% by mass

[0906] Color development layer C1: a color development layer comprising a cyan color-developing colorless dye, a developer, and a polycarbonate resin, wherein the content of the polycarbonate resin in the color development layer is 65% by mass

[0907] Color development layer C2: A color development layer comprising a cyan color-developing colorless dye, a developer, and a polycarbonate resin, wherein the content of the polycarbonate resin in the color development layer is 65% by mass

[0908] Color development layer M1: a color development layer comprising a colorless dye that develops magenta, a developer, and a polycarbonate resin, wherein the content of the polycarbonate resin in the color development layer is 58% by mass

[0909] Color development layer M2: A color development layer comprising a colorless dye that develops magenta, a developer, and a polycarbonate resin, wherein the content of the polycarbonate resin in the color development layer is 58% by mass

[0910] Table 2, Table 3 and Table 4 show the following.

[0911] When the intermediate layer between the color development layers comprises a base polymer layer, an ultraviolet curable resin layer and a pressure-sensitive adhesive layer, the adhesion between the color development layer and the intermediate layer can be improved (see the evaluation results of Example 5).

[0912] When the intermediate layer between the color developing layers comprises a pressure-sensitive adhesive layer, an ultraviolet curable resin layer and a pressure-sensitive adhesive layer, the adhesion between the color developing layer and the intermediate layer can be improved (see the evaluation results of Examples 6 and 10).

[0913] When the intermediate layer between the color development layers comprises a base polymer layer and a film, the adhesion between the color development layer and the intermediate layer can be improved (see the evaluation results of Example 8).

[0914] When the intermediate layer between the color-developing layers includes an easy-adhesion treatment film, the adhesion between the color-developing layer and the intermediate layer can be improved (see the evaluation results of Examples 9 and 10).

[0915] (Reference Examples 3-1 to 3-8)

[0916] A PC film having a thickness of 25 μm, a polycarbonate resin layer having a thickness of 5 μm, and a PC film having a thickness of 25 μm were laminated and then heated and pressed at a temperature of 180° C. to fuse, thereby obtaining a sample. As the layer containing the polycarbonate resin, a layer having the composition shown in Table 5 was used.

[0917] (Adhesion)

[0918] First, the average peel strength between the layers of the sample was measured. The average peel strength was measured by the method for measuring the average peel strength of the laminate described in the first embodiment. Next, the measured average peel strength was evaluated according to the following criteria.

[0919] ○: All average peel strengths between layers were 3.5 N / cm or more.

[0920] ×: At least one of the average peel strengths between layers is less than 3.5 N / cm.

[0921] The evaluation results are shown in Table 5 and Fig.76 It should be noted that the average peel strength described in Table 5 represents the average peel strength between the polycarbonate-based resin-containing layer and the PC film.

[0922] [Table 5]

[0923]

[0924]

[0925] Details of the components and materials described in Table 5 are as follows.

[0926] OCA: Optically Clear Adhesive

[0927] UV curable resin layer: Acrylic resin layer for hard coat

[0928] Base polymer: polycarbonate resin

[0929] Developer: a compound represented by formula (3)

[0930] Table 5 and Fig.76 It is shown that when the ratio of the developer to the total amount of the developer and the base polymer is 16% by mass or less, the peel strength can be 3.5 N / cm or more.

[0931] Reference Symbols List

[0932] 1, 2, 3, 4, 5, 6, 7, 8, 10-layer laminate

[0933] 11 Base material

[0934] 12, 14 adhesive layer

[0935] 13,16 middle layer

[0936] 13A, 13B, 16A, 16B Storage Section

[0937] 15 Covering Layer

[0938] 20, 20A, 20B, 20C, 20D, 20E, 20F, 20G, 20H, 50 recording components

[0939] 22, 25, 28, 33 Pressure-sensitive adhesive layer

[0940] 23, 26, 29, 34, 26A, 29A, 34A, 26B, 29B, 34B insulation layer

[0941] 24, 27, 30, 52 color layers

[0942] 26A1, 29A1, 34A1 resin layer

[0943] 26A2, 29A2, 34A2, 26B2, 29B2, 34B2 UV curable resin layer

[0944] 26B1, 29B1, 34B1 pressure-sensitive adhesive layer

[0945] 31,36 protection layers

[0946] 32A, 32B, 32C, 35A, 35B, 35C, 37A, 37B, 37C, 38A, 38B, 38C middle layer

[0947] 36A UV curable resin layer

[0948] 36B UV Cutting Layer

[0949] 36C pressure sensitive adhesive layer

[0950] 36D base material

[0951] 52C, 52M, 52Y

[0952] Microcapsules

[0953] 60 specimens

[0954] 60A, 60B adherend

[0955] 61 tensile member

[0956] 62 Clamping device

[0957] 71 test bench

[0958] 72 fixture

[0959] 73A, 73B movable roller

[0960] 100, 200, 300, 400, 500, 600, 700 records

[0961] 101 Items

[0962] 102 Connecting components

[0963] 110External materials

[0964] 111 Containment Sector

[0965] 112 bottom

[0966] 113 side wall

Claims

1. A record comprising: Laminates; as well as an outer material covering at least a portion of a surface of the laminate, wherein The laminate comprises: Base material; an intermediate layer, disposed on the substrate and having a receiving portion; a recording member disposed in the housing portion; and a cover layer, disposed on the intermediate layer, The receiving portion is provided in a portion of the plane of the intermediate layer, The receiving portion is a through hole penetrating the middle layer in the thickness direction of the middle layer or a recessed portion recessed in the thickness direction of the middle layer. The recording member includes a color developing layer containing a coloring compound having an electron donating property, a developer having an electron accepting property, and a matrix resin, The substrate, the intermediate layer and the cover layer include the same type of resin material, and The base material and the intermediate layer are bonded to each other by fusion, and the intermediate layer and the cover layer are bonded to each other by fusion.

2. A record comprising: Laminates; as well as an outer material covering at least a portion of a surface of the laminate, wherein The laminate comprises: Base material; Covering layer; an intermediate layer disposed between the substrate and the cover layer and having a receiving portion; and a recording member, disposed in the housing portion, The receiving portion is provided in a portion of the plane of the intermediate layer, The receiving portion is a through hole penetrating the middle layer in the thickness direction of the middle layer or a recessed portion recessed in the thickness direction of the middle layer. The recording member includes a color developing layer containing a coloring compound having an electron donating property, a developer having an electron accepting property, and a matrix resin, The substrate, the intermediate layer and the cover layer include the same type of resin material, and The base material and the intermediate layer are bonded to each other by a heat-curing adhesive, and the intermediate layer and the cover layer are bonded to each other by a heat-curing adhesive.

3. The recording medium according to claim 1, wherein The resin material includes a thermoplastic resin.

4. The recording medium according to claim 1, wherein The resin material includes a polycarbonate resin.

5. The recording medium according to claim 1, wherein The resin material includes polyethylene terephthalate resin.

6. The recording medium according to claim 2, wherein The heat-curing adhesive includes a thermosetting resin.

7. The recording medium according to claim 1, wherein The color development layer is configured to be able to change the color state by laser, and The change of coloring state is irreversible.

8. The recording medium according to claim 1, wherein The record member includes authentication information.

9. The recording medium according to claim 8, wherein The authentication information includes an artifact metric.

10. The recording medium according to claim 1, wherein The external material includes a supporting substrate and a protective layer, and The laminate is disposed between the supporting substrate and the protective layer.

11. The recording medium according to claim 1, wherein The exterior material covers the entirety of the laminate.

12. The recording medium according to claim 1, wherein The outer material is a packaging sheet.

13. The recording medium according to claim 1, wherein The exterior material includes a flexible first exterior member and a flexible second exterior member, the laminate is sandwiched between the first exterior member and the second exterior member, and Peripheral edge portions of the first exterior member and the second exterior member are bonded to each other or connected to each other by a connecting member.

14. The recording medium according to claim 1, wherein The exterior material includes leather, cloth, polymer resin, metal, glass, paper, wood, or a composite material of two or more of leather, cloth, polymer resin, metal, glass, paper, and wood.

15. The recording medium according to claim 1, wherein drawing a first image and a second image surrounding the first image on the recording member, and The second image includes an image of matte paper or an image of a frame.

16. An article comprising the record according to claim 1.

17. The article of claim 16, wherein The item is an accessory or a pharmaceutical product.

18. A record comprising: a laminate structure in which a plurality of laminates are laminated; and an outer material covering at least a portion of a surface of the laminate structure, wherein The laminate comprises: Base material; An intermediate layer is disposed on the substrate and has a receiving portion; a recording member disposed in the housing portion; and a cover layer, disposed on the intermediate layer, The receiving portion is provided in a portion of the plane of the intermediate layer, The receiving portion is a through hole penetrating the middle layer in the thickness direction of the middle layer or a recessed portion recessed in the thickness direction of the middle layer. The recording member includes a color developing layer containing a coloring compound having an electron donating property, a developer having an electron accepting property, and a matrix resin, The substrate, the intermediate layer and the cover layer include the same type of resin material, and The base material and the intermediate layer are bonded to each other by fusion, and the intermediate layer and the cover layer are bonded to each other by fusion.

19. A record comprising: a laminate structure in which a plurality of laminates are laminated; as well as an outer material covering at least a portion of a surface of the laminate structure, wherein The laminate comprises: Base material; Covering layer; an intermediate layer disposed between the substrate and the cover layer and having a receiving portion; and a recording member, disposed in the housing portion, The receiving portion is provided in a portion of the plane of the intermediate layer, The receiving portion is a through hole penetrating the middle layer in the thickness direction of the middle layer or a recessed portion recessed in the thickness direction of the middle layer. The recording member includes a color developing layer containing a coloring compound having an electron donating property, a developer having an electron accepting property, and a matrix resin, The substrate, the intermediate layer and the cover layer include the same type of resin material, and The base material and the intermediate layer are bonded to each other by a heat-curing adhesive, and the intermediate layer and the cover layer are bonded to each other by a heat-curing adhesive.

20. The recording medium according to claim 18, wherein The plurality of laminates comprises: at least one first laminate including a rewritable recording member; and At least one second laminate includes a write-once recording member.

Images