Method for manufacturing a cosmetic sheet
The method synchronizes printed and concavo-convex patterns on a decorative sheet by forming a transparent resin layer and protective layer on the opposite surface, addressing protection and synchronization issues in conventional methods.
Patent Information
- Application Number
- JP2024089276
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-07-23
- Estimated Expiration
- 2040-07-31
AI Technical Summary
Conventional decorative sheet manufacturing methods face challenges in ensuring adequate protection of inkjet-printed patterns and achieving precise synchronization between printed and concavo-convex patterns, with existing technologies either failing to provide sufficient protection or struggling with fine synchronization.
A method for manufacturing a decorative sheet that involves forming a printed pattern on one surface of a base sheet, followed by a transparent resin layer on the opposite surface, and synchronizing an uneven pattern with the printed pattern using feedback mechanisms based on detected marks and patterns, including a primer and protective layer for enhanced protection.
The method ensures precise synchronization and adequate protection of printed patterns by using a transparent resin and protective layer, enhancing the durability and visibility of the decorative sheet.
Smart Images

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Abstract
Description
Technical Field
[0001] The present invention relates to a decorative sheet for furniture and fixtures, for example, and to a method for manufacturing a decorative sheet that enables synchronization of a pattern portion and a concavo-convex pattern portion in the manufacturing process.
Background Art
[0002] Conventionally, a "decorative sheet and a method for manufacturing the same" has been known in which a pattern layer is printed on the back surface of a base sheet using a printing machine, the pitch of the embossed pattern is continuously measured, and printing is performed while adjusting the pitch of the inkjet-printed pattern layer to be equal to this measured value (see paragraphs
[0025] ,
[0041] , and
[0042] of Patent Document 1, and FIG. 5). Also, conventionally, a "manufacturing apparatus for a decorative sheet and a method for manufacturing a decorative sheet" has been known in which the printed pattern and the concavo-convex pattern can be synchronized by controlling the pressing force between a pair of rollers with respect to a pre-printed sheet base material (see paragraphs
[0021] and
[0031] to
[0034] of Patent Document 2, and FIG. 2).
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Patent Document 2
Summary of the Invention
Problems to be Solved by the Invention
[0004] In the above-described conventional "decorative sheet and a method for manufacturing the same" (Patent Document 1), as shown in FIGS. 1 and 2 of Patent Document 1, on the back side of a decorative sheet having an embossed pattern on the surface, that is, on the back surface of a synthetic resin base sheet, an inkjet-printed pattern layer is formed. Therefore, a case where the protection of the inkjet-printed pattern layer is insufficient is assumed. In addition, in the conventional "manufacturing apparatus for cosmetic sheets and manufacturing method for cosmetic sheets" (Patent Document 2), by controlling the pressing force between a pair of rollers, the printed pattern and the uneven pattern can be synchronized, and the synchronizability is good, but there are cases where fine synchronization is difficult to achieve.
[0005] The present invention focuses on the above points, and not only can the printed pattern portion printed by a printing machine and the uneven pattern portion formed thereafter be synchronized, but also by printing the printed pattern portion on the surface of the printing layer facing away from the surface in contact with the base sheet, the resin layer and the protective layer can sufficiently protect the printed pattern portion.
Means for Solving the Problems
[0006] A method for manufacturing a cosmetic sheet according to an aspect of the present invention includes a base sheet supply step of pulling out and transferring a base sheet from a base roll, a printing layer forming step of forming a printing layer having a printed pattern portion on one surface of the base sheet transferred by the base sheet supply step based on printing information related to printing using a printing machine, a resin layer forming step of forming a transparent resin layer in the same direction as the printing layer on the other surface of the printing layer formed by the printing layer forming step, which faces away from one surface adjacent to the base sheet, and an uneven pattern forming step of forming an uneven pattern portion in synchronization with the printed pattern portion on the other surface of the resin layer formed by the resin layer forming step, which faces away from one surface adjacent to the printing layer. The method is a method for manufacturing a cosmetic sheet that continuously executes the steps. The uneven pattern forming step includes an uneven pattern mark forming step of forming an uneven pattern mark that is located outside the printed pattern portion in the base sheet and is associated with the uneven pattern portion. After the uneven pattern mark forming step, there are a mark detection step of detecting the uneven pattern mark formed by the uneven pattern mark forming step and a feedback step of correcting the printing information based on the uneven pattern mark detection information detected in the mark detection step. It is characterized by including the above.
[0007] Moreover, the method for manufacturing a cosmetic sheet according to one aspect of the present invention includes, in the printing layer forming step, a printing mark forming step of forming, on the base sheet, a printing mark that is located outside the printed pattern portion and is associated with the printed pattern portion. In the mark detection step, in addition to the concavo-convex pattern mark, the printing mark formed by the printing mark forming step is detected. In the feedback step, based on the printing mark detection information related to the printing mark in addition to the concavo-convex pattern mark detection information related to the concavo-convex pattern mark, the printing information is corrected.
[0008] The method for manufacturing a cosmetic sheet according to one aspect of the present invention is characterized in that when the printing mark and the concavo-convex pattern mark have a preset specific positional relationship when viewed from the thickness direction of the base sheet, the printed pattern portion and the concavo-convex pattern portion are associated so as to be synchronized.
[0009] The method for manufacturing a cosmetic sheet according to one aspect of the present invention is characterized in that in the feedback step, correction information of at least one of the dimensional correction information and the phase correction information of the printed pattern portion is created.
[0010] The method for manufacturing a cosmetic sheet according to one aspect of the present invention is characterized in that the dimensional correction information of the printed pattern portion is created based on the concavo-convex pattern distance information including the distance calculated between adjacent concavo-convex pattern marks in the transport direction and the width direction of the base sheet.
[0011] The method for manufacturing a cosmetic sheet according to one aspect of the present invention is characterized in that the dimensional correction information of the printed pattern portion is created based on the ratio between the printing mark distance information including the distance calculated between adjacent printing marks in the transport direction and the width direction of the base sheet and the concavo-convex pattern distance information.
[0012] The manufacturing method of a cosmetic sheet according to one aspect of the present invention is characterized in that the phase correction information of the printed pattern portion is created based on the inter - mark distance information including the calculated distance obtained by calculating the distance between adjacent uneven pattern marks and the printed marks in the transport direction and width direction of the original sheet.
[0013] The manufacturing method of a cosmetic sheet according to one aspect of the present invention includes, in the manufacturing method, a primer layer forming step of forming a primer layer on the other surface of one surface of the original sheet, and a protective layer forming step of forming a transparent protective layer on the surface of the resin layer after the formation of the uneven pattern portion by the uneven pattern forming step. The primer layer forming step and the protective layer forming step are provided continuously or discontinuously with respect to the original sheet supply step, the printing layer forming step, the resin layer forming step, and the uneven pattern forming step.
[0014] A cosmetic sheet according to one aspect of the present invention is characterized in that it is manufactured using the manufacturing method of a cosmetic sheet.
[0015] A decorative board according to one aspect of the present invention is characterized by comprising the cosmetic sheet and a base material bonded to at least one surface of the cosmetic sheet.
[0016] A method for manufacturing a cosmetic sheet according to an aspect of the present invention includes a base sheet supply step of pulling out and transferring a base sheet from a base roll, and on one surface of the base sheet transferred by the base sheet supply step, based on print information related to printing, using a printing machine, a printing layer forming step of forming a printing layer having a printed pattern portion, in the printing layer formed by the printing layer forming step, on the other surface facing the opposite side of the one surface adjacent to the base sheet, a resin layer forming step of forming a transparent resin layer in the same direction as the printing layer, in the resin layer formed by the resin layer forming step, on the other surface facing the opposite side of the one surface adjacent to the printing layer, an uneven pattern forming step of forming an uneven pattern portion in synchronization with the printed pattern portion, and is a method for manufacturing a cosmetic sheet that continuously executes the steps, and after the uneven pattern forming step, includes an uneven pattern detection step of detecting the uneven pattern portion formed by the uneven pattern forming step, and a feedback step of correcting the print information based on the uneven pattern detection information detected in the uneven pattern detection step.
[0017] A method for manufacturing a cosmetic sheet according to an aspect of the present invention includes, in the printing layer forming step, a print mark forming step of forming a print mark that is located outside the printed pattern portion in the base sheet and is associated with the printed pattern portion, the mark detection step includes a print mark detection step of detecting the print mark formed by the print mark forming step, and in the feedback step, in addition to the uneven pattern detection information related to the uneven pattern portion, based on the print mark detection information related to the print mark detected in the print mark detection step, the print information is corrected.
[0018] A method for manufacturing a cosmetic sheet according to an aspect of the present invention includes a base sheet supply step of pulling out and transferring a base sheet from a base roll, and on one surface of the base sheet transferred by the base sheet supply step, based on printing information related to printing, using a printing machine, a printing layer forming step of forming a printing layer having a printed pattern portion, in the printing layer formed by the printing layer forming step, on the other surface facing the opposite side to the one surface adjacent to the base sheet, a resin layer forming step of forming a transparent resin layer in the same orientation as the printing layer, and in the resin layer formed by the resin layer forming step, on the other surface facing the opposite side to the one surface adjacent to the printing layer, an uneven pattern forming step of forming an uneven pattern portion in synchronization with the printed pattern portion. The method for manufacturing a cosmetic sheet continuously executes these steps, and after the uneven pattern forming step, an image detection step of simultaneously imaging the printed pattern portion formed by the printing layer forming step and the uneven pattern portion formed by the uneven pattern forming step, and a feedback step of correcting the printing information based on the image detection information detected in the image detection step.
Effects of the Invention
[0019] According to an aspect of the present invention, not only can the printed pattern portion printed by a printing machine and the uneven pattern portion formed thereafter be synchronized, but also by printing the printed pattern portion on the surface of the printing layer facing the opposite side to the surface in contact with the base sheet, the printed pattern portion can be sufficiently protected by the resin layer and the protective layer.
Brief Description of the Drawings
[0020]
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Mode for Carrying Out the Invention
[0021] (Explanation of Embodiments 1 to 4 shown in FIGS. 1 to 7) The first feature of Embodiment 1 is that, as shown in FIG. 3, uneven pattern marks 500 and 510 and printing marks 400 and 410 are formed on the base sheet 20, and the marks 500, 510, 400, and 410 are detected in the manufacturing process. Note that existing general names such as "dragonfly" may be used for the printing marks 400 and 410.
[0022] The second feature of Embodiment 1 is that, as shown in FIG. 2, by feeding back to the printing machine 140 through the mark detection step J and the feedback step K, the printing information of the printed pattern portion 31 formed by the printing machine 140 thereafter is corrected. The feature of Embodiment 2 is that the one mark detector 330 (see FIG. 2) used in Embodiment 1 is separated into two detectors 320 and 330 as shown in FIG. 5. The feature of Embodiment 3 is that, instead of the uneven pattern marks 500 and 510 used in Embodiment 1, as shown in FIG. 6, in the uneven pattern detection step N, the uneven pattern portion 51 is directly detected. The feature of Embodiment 4 is that, instead of the printing marks 400 and 410 used in Embodiment 1, as shown in FIG. 7, in the image detection step O, the printed pattern portion 31 and the uneven pattern portion 51 are simultaneously imaged.
[0023] (Cosmetic sheet 10 shown in FIG. 1) In FIG. 1, 10 indicates a cosmetic sheet, and the cosmetic sheet 10 is used as a surface material for applications such as furniture and fixtures. As shown in Fig. 1, the cosmetic sheet 10 is composed of the following layers. The following (1) to (7) will be described later. (1) Base sheet 20 (2) Printing layer 30 (3) Adhesive layer 40 (4) Resin layer 50 (6) Protective layer 60 (7) Primer layer 70 The cosmetic sheet 10 is laminated in the order of (7) primer layer 70, (1) base sheet 20, (2) printing layer 30, (3) adhesive layer 40, (4) resin layer 50, and (6) protective layer 60, and is composed of seven layers. Note that the cosmetic sheet 10 is not limited to (1) to (7), and for example, the primer layer 70 may be omitted.
[0024] (Base sheet 20) The base sheet 20 is made of, for example, a transparent thermoplastic resin and is composed of a colored film. As materials used for the base sheet 20, polyolefin resins such as low-density polyethylene resin (LDPE), high-density polyethylene resin (HDPE), linear low-density polyethylene resin (LLDPE), polypropylene resin (PP), and polyolefin elastomers, polyester resins such as polyethylene terephthalate resin (PET), polybutylene terephthalate resin (PBT), and polyethylene naphthalate resin (PEN), cellulose resins such as cellophane and triacetate cellulose (TAC) resin, polymethyl methacrylate resin (PMMA), ethylene-vinyl acetate copolymer resin (EVA), ionomer resin, polybutene resin, polyacrylonitrile resin, polyamide resins such as nylon-6 and nylon-66, polystyrene resin (PS), polyvinyl chloride resin (PVC), polyvinylidene chloride resin (PVDC), polycarbonate resin (PC), fluorine-based resins, and urethane-based resins can be used. However, materials that are difficult to stretch against tension are suitable. Common materials include stretched polypropylene resin (OPP) film, stretched polyethylene terephthalate resin (PET) film, stretched polyamide resin (ONy) film, etc. As for the thickness of the original sheet 20, if it is a PP film, about 70 μm is desirable. If it is 30 μm, the pitch of the embossed pattern described later will not be stable.
[0025] (Printing layer 30) The printing layer 30 is formed on the surface of the original sheet 20 using a printing machine 140, for example, an inkjet method, and a printed pattern portion 31 is further formed on the surface. The printing machine 140 can use, for example, inks for solvent-based, water-based, and solventless inkjet printers. Among them, solventless or poor-solvent ultraviolet-curable inks are less likely to cause clogging of the inkjet nozzles and can be preferably used.
[0026] (Adhesive layer 40) The adhesive layer 40 is formed on the surface of the printing layer 30 having the printed pattern portion 31. For the adhesive layer 40, for example, a polyolefin-based copolymer resin into which a polar group is introduced, a polyester-based resin into which a polar group is similarly introduced, an ionomer resin, etc. can be used.
[0027] (Resin layer 50) The resin layer 50 is transparent so that the printed pattern portion 31 can be seen through, and an uneven pattern portion 51 such as an emboss is formed on the surface in synchronization with the printed pattern portion 31. The resin layer 50 can use the same material as the original sheet 20. As a method of shaping the uneven pattern portion 51 such as an emboss, as shown in FIG. 2, when the molten resin material is extruded from the T-die 160 and pressed against the cooled embossing roll 180 to directly form an embossed film (not shown), the highest reproducible embossing effect can be obtained. Therefore, it is advisable to select a resin material suitable for this method.
[0028] Specifically, polyolefin resins such as low-density polyethylene resin (LDPE), high-density polyethylene resin (HDPE), linear low-density polyethylene resin (LLDPE), polypropylene resin (PP), and polyolefin elastomers, polyester resins such as polyethylene terephthalate resin (PET), polybutylene terephthalate resin (PBT), and polyethylene naphthalate resin (PEN), polymethyl methacrylate resin (PMMA), ethylene-vinyl acetate copolymer resin (EVA), ionomer resin, polybutene resin, polyacrylonitrile resin, polyamide resins such as nylon-6 and nylon-66, polystyrene resin (PS), polyvinyl chloride resin (PVC), polyvinylidene chloride resin (PVDC), polycarbonate resin (PC), urethane resin, etc. can be used as extrusion grades for various synthetic resin films. When forming the resin layer 50 by an extrusion process using a T-die 160, it is not limited to a single layer, and a two-layer or three-layer coextrusion method may also be used. A material with good adhesiveness can be used on the side in contact with the raw sheet 20, and it can be a two-layer extrusion of the adhesive layer 40 and the main layer (not shown) described above, or a three-layer extrusion using a material with good light resistance on the outside of the main layer.
[0029] (Protective layer 60) The protective layer 60 is formed on the surface of the resin layer 50 having the uneven pattern portion 51, and adds various surface properties to the surface of the decorative sheet 10, and can improve scratch resistance, light resistance, surface gloss, touch feeling, etc. As the material, a two-component curable acrylic urethane resin or a topcoat resin added with additives necessary for an ultraviolet curable acrylic resin can be used.
[0030] (Primer layer 70) The primer layer 70 is formed on the back surface of the raw sheet 20. The primer layer 70 is an anchor coat layer for the purpose of improving the adhesiveness of the resin. In addition to improving adhesiveness, the functions of the primer layer 70 also include surface stabilization after surface treatment, corrosion prevention of the metal surface, imparting adhesiveness, preventing deterioration of the adhesive, etc. As the primer (undercoat agent) for forming the primer layer 70, for example, a two-component urethane resin-based primer can be used. The type of primer varies depending on the adherend and the application. Examples of the adherend include plate-shaped members made of a metal-based or wood-based material. Examples of the metal-based material include aluminum, steel, stainless steel, composite panels, etc. Examples of the composite panel include those having a resin layer as a core material and metal plates (such as aluminum, gallium, stainless steel, etc.) attached to both sides of the resin layer. Examples of the wood-based material include MDF (medium density fiberboard), plywood, particle board, etc.
[0031] (Manufacturing apparatus 100) The decorative sheet 10 having the above-described layers is manufactured using the manufacturing apparatus 100 shown in FIG. 2. As shown in FIG. 2, the manufacturing apparatus 100 includes the following parts. Note that the following (1) to (15) will be described later. (1) Base fabric roll 110 (2) Primer coater 120 (3) Primer drying equipment 130 (4) Printing machine 140 (5) Ink drying equipment 150 (6) T-die 160 (7) Back roll 170 (8) Embossing roll 180 (11) Protective layer coater 190 (12) Protective layer drying equipment 200 (13) Product roll 210 (14) Mark detector 300 (15) Detection signal 310
[0032] Note that, as parts of the manufacturing apparatus 100, the above-described (1) to (15) are exemplified, but the present invention is not limited thereto. Although not shown, for example, when forming the primer layer 70 discontinuously (offline), the primer coater 120 and the drying equipment 130 for the primer may be omitted. Also, when forming the protective layer 60 discontinuously (offline), the protective layer coater 190 and the drying equipment 200 for the protective layer may be omitted. Further, the mark detector 300 is configured by one detector, but the present invention is not limited thereto. As shown in FIG. 5, for example, it may be configured by two detectors, i.e., a printed mark detector 320 and a concavo-convex pattern mark detector 330.
[0033] That is, it is possible to form both or one of the primer layer 70 and the protective layer 60 discontinuously (offline). For example, when forming the primer layer 70 discontinuously (offline), the primer coater 120 and the drying equipment 130 for the primer can be omitted, and the structure of the entire manufacturing apparatus 100 can be simplified and miniaturized. Also, for example, when forming the protective layer 60 discontinuously (offline), the protective layer coater 190 and the drying equipment 200 for the protective layer can be omitted, and the structure of the entire manufacturing apparatus 100 can be simplified and miniaturized.
[0034] (Original web roll 110) The original web roll 110 is wound with the original web sheet 20. (Primer coater 120) The primer coater 120 forms the primer layer 70 on the back surface of the original web sheet 20. (Drying equipment 130 for primer) The drying equipment 130 for primer dries the primer layer 70 formed by the primer coater 120.
[0035] (Printing machine 140) The printing machine 140 forms the printing layer 30 having the printed pattern portion 31 on the front surface of the original web sheet 20, and for example, uses an inkjet method. (Drying equipment 150 for ink) The ink drying equipment 150 is for drying the printing layer 30 having the printed pattern portion 31 formed by the printing machine 140, and for example, it cures the ultraviolet curable ink used for printing by UV curing. (T-die 160) The T-die 160 extrudes the molten resin material and forms the resin layer 50 on the surface of the printing layer 30 having the printed pattern portion 31. When forming the resin layer 50, the adhesive layer 40 may be co-extruded or independently formed between the resin layers 50.
[0036] (Back roll 170) The back roll 170 presses the molten resin material extruded from the T-die 160 against the embossing roll 180. (Embossing roll 180) The embossing roll 180 has, for example, a wood grain conduit pattern formed thereon, and forms an uneven pattern portion 51 such as an emboss on the surface of the resin layer 50. The uneven pattern portion 51 is formed to be synchronized with the printed pattern portion 31.
[0037] (Protective layer coater 190) The protective layer coater 190 forms the protective layer 60 on the surface of the resin layer 50 having the uneven pattern portion 51. (Drying equipment 200 for protective layer) The drying equipment 200 for protective layer dries the protective layer 60. (Product roll 210) The product roll 210 winds up the manufactured decorative sheet 10.
[0038] (Mark detector 300) The mark detector 300 is located downstream of the embossing roll 180 and is for detecting the uneven pattern marks 500, 510 described later with reference to FIG. 3. The mark detector 300 is electrically connected directly or indirectly to the printing machine 140. In addition to the uneven pattern marks 500, 510, the mark detector 300 may also be configured to detect the printing marks 400, 410 described later with reference to FIG. 3. In the first embodiment, the uneven pattern marks 500 and 510 and the printed marks 400 and 410 are detected simultaneously. Although the mark detector 300 is composed of one detector, it is not limited thereto. As shown in FIG. 5, for example, it may be composed of two detectors, a printed mark detector 320 and an uneven pattern mark detector 330.
[0039] (Detection signal 310) The detection signal 310 includes the uneven pattern mark detection information detected by the mark detector 300. It is included. In addition to the uneven pattern mark detection information, the detection signal 310 may also include the printed mark detection information detected by the mark detector 300. In the first embodiment, the detection signal 310 includes the uneven pattern mark detection information and the printed mark detection information in a distinguishable manner.
[0040] (Manufacturing method) The manufacturing method of the decorative sheet 10 using the above-described manufacturing apparatus 100 includes the following steps as shown in FIG. 2. Note that the following (1) to (7) will be described later. (1) Base sheet supply step A (2) Primer layer formation step B (3) Printing layer formation step C (4) Resin layer formation step D (5) Uneven pattern formation step E (6) Protective layer formation step F (7) Product recovery step G Although the above (1) to (7) are exemplified as the manufacturing method, it is not limited thereto. Although not shown, for example, when the primer layer 70 is formed discontinuously (offline), the primer layer formation step B may be omitted, or when the protective layer 60 is formed discontinuously (offline), the protective layer formation step F may be omitted.
[0041] (Base sheet supply step A) The raw fabric sheet supply process A is a process of pulling out the raw fabric sheet 20 from the raw fabric roll 110 and transferring it, and the transfer direction is the direction of the arrow in Fig. 2. (Primer layer forming process B) The primer layer forming process B is a process of forming a primer layer 70 on the back surface of the raw fabric sheet 20 using a primer coater 120 and primer drying equipment 130.
[0042] (Printing layer forming process C) The printing layer forming process C is a process of forming a printing layer 30 having a printed pattern portion 31 on the front surface of the raw fabric sheet 20 using, for example, an inkjet printer 140 and ink drying equipment 150 after the completion of the primer layer forming process B. In the printing layer forming process C, the printing layer 30 having the printed pattern portion 31 is printed using the printer 140 based on preset printing reference information as will be described later with reference to Fig. 3.
[0043] (Resin layer forming process D) The resin layer forming process D is a process of forming an adhesive layer 40 and a resin layer 50 in two layers on the surface of the printing layer 30 having the printed pattern portion 31 mainly using a T-die 160 and a back roll 170 after the completion of the printing layer forming process C. (Convex and concave pattern forming process E) The convex and concave pattern forming process E is a process of forming a convex and concave pattern portion 51 such as an emboss on the surface of the resin layer 50 mainly using an embossing roll 180 after the completion of the resin layer forming process D. The convex and concave pattern portion 51 is formed so as to be synchronized with the printed pattern portion 31.
[0044] (Protective layer forming process F) The protective layer forming process F is a process of forming a protective layer 60 on the surface of the resin layer 50 having the convex and concave pattern portion 51 using a protective layer coater 190 and protective layer drying equipment 200 after the completion of the convex and concave pattern forming process E. (Product recovery process G) The product recovery process G is a process of winding up and recovering the manufactured decorative sheet 10 using a product roll 210 after the completion of the protective layer forming process F.
[0045] (Other processes) As other processes in addition to the above-described Processes A to G, as shown in FIG. 2, the following processes are included. Note that the following (1) to (4) will be described later. (1) Printing mark forming process H (2) Concavo-convex pattern mark forming process I (3) Mark detecting process J (4) Feedback process K Note that, as other processes, the above-described (1) to (4) are exemplified, but the present invention is not limited thereto. For example, as will be described later with reference to FIG. 3, it is also possible to previously form the printing marks 400 and 410 on the raw sheet 20. When the printing marks 400 and 410 are formed discontinuously (offline), the printing mark forming process H may be omitted. Further, although the mark detecting process J is described as one process, the present invention is not limited thereto. For example, as shown in FIG. 5, it may be configured by two processes, i.e., a printing mark detecting process L and a concavo-convex pattern mark detecting process M.
[0046] (Printing mark forming process H) The printing mark forming process H is included in the printing layer forming process C, and is a process of forming printing marks 400 and 410, which are located outside the printing pattern portion 31 and associated with the printing pattern portion 31, on the raw sheet 20 as shown in FIG. 3. Here, the "outside" of the printing pattern portion 31 means "outside" in the width direction of the raw roll 110, for example, as shown in FIG. 3, compared with the position where the printing pattern portion 31 is formed. Further, the printing marks 400 and 410 are printed using the printing machine 140. Note that the printing marks 400 and 410 are printed using the printing machine 140, but the present invention is not limited thereto. Although not shown, another printing machine may be installed together with the printing machine 140 for printing, or for example, a stamp may be used or a branding mark may be formed using a laser beam.
[0047] (Concavo-convex pattern mark forming process I) The concavo-convex pattern mark forming step I is included in the concavo-convex pattern forming step E. For example, as shown in FIG. 3, in the raw sheet 20, it is a step of forming concavo-convex pattern marks 500 and 510 that are located outside the printed pattern portion 31 and are associated with the concavo-convex pattern portion 51. Here, as the "outside" of the printed pattern portion 31, as described above, it means "outside" in the width direction of the raw roll 110. Also, the concavo-convex pattern marks 500 and 510 are formed in a concavo-convex shape using the embossing roll 180. Note that although the concavo-convex pattern marks 500 and 510 are formed in a concavo-convex shape using the embossing roll 180, it is not limited to this. Although not shown, they may be formed flatly. For example, a printing machine may be installed together with the embossing roll 180 for printing, or, for example, a stamp may be used, or a branding mark may be formed using a laser beam.
[0048] (Mark detection step J) The mark detection step J is located in the subsequent stage of the concavo-convex pattern mark forming step I, and is a step of detecting the concavo-convex pattern marks 500 and 510 formed by the concavo-convex pattern mark forming step I. Also, in the mark detection step J, a detection signal 310 including the detected concavo-convex pattern mark detection information is transmitted directly or indirectly to the printing machine 140. On the other hand, in the mark detection step J, in addition to the concavo-convex pattern marks 500 and 510, the printing marks 400 and 410 formed by the printing mark forming step H are detected. The mark detection step J transmits to the printing machine 140 including printing mark detection information in addition to the concavo-convex pattern mark detection information.
[0049] (Feedback step K) The feedback step K is a step of correcting printing information based on the concavo-convex pattern mark detection information detected in the mark detection step J. Also, the feedback step K corrects the printing information based on the printing mark detection information related to the printing marks 400 and 410 in addition to the concavo-convex pattern mark detection information related to the concavo-convex pattern marks 500 and 510 In the feedback process K, at least one of the correction information of the dimensional correction information and the phase correction information of the printed pattern portion 31 is created.
[0050] That is, when it is determined that the printed pattern portion 31 and the concavo-convex pattern portion 51 are not in synchronization based on the concavo-convex pattern mark detection information and the printed mark detection information, if the cause is the dimension of the printed pattern portion 31, that is, the scale, the dimensional correction information of the printed pattern portion 31 is created. Further, when the cause of the non-synchronization is a deviation in the phase of the printed pattern portion 31, the phase correction information of the printed pattern portion 31 is created. When the cause of the non-synchronization is both a deviation in dimension and a deviation in phase, both the dimensional correction information and the phase correction information are created. On the other hand, when it is determined that the printed pattern portion 31 and the concavo-convex pattern portion 51 are in synchronization, no correction information is created.
[0051] (Explanation of the printed marks 400, 410 and the concavo-convex pattern marks 500, 510 shown in FIGS. 3 and 4) The printed marks 400, 410 and the concavo-convex pattern marks 500, 510 will be described with reference to FIGS. 3 and 4. FIG. 3 shows the detection states of the printed marks 400, 410 and the concavo-convex pattern marks 500, 510 by the mark detector 300. In the figure, the printed pattern portion 31 and the concavo-convex pattern portion 51 are entered, but the mark detector 300 only detects the printed marks 400, 410 and the concavo-convex pattern marks 500, 510, and the printed pattern portion 31 and the concavo-convex pattern portion 51 are entered for reference only.
[0052] (Specific positional relationship) The printed marks 400, 410 and the concavo-convex pattern marks 500, 510 are related so that the printed pattern portion 31 and the concavo-convex pattern portion 51 are in synchronization when they overlap, that is, coincide, as viewed from the thickness direction of the original sheet 20, for example, as shown in FIG. 4. Note that, as the specific positional relationship, the case of coincidence is exemplified, but the present invention is not limited thereto, and a case where a part overlaps or intersects may also be acceptable. Figure 3 illustrates a case where the printed pattern portion 31 is not in sync with the concavo-convex pattern portion 51. As a result, the printed marks 400, 410 and the concavo-convex pattern marks 500, 510 do not overlap and are separated. In contrast, Figure 4 illustrates a case where the printed pattern portion 31 is in sync with the concavo-convex pattern portion 51. As a result, the printed marks 400, 410 and the concavo-convex pattern marks 500, 510 partially overlap and coincide.
[0053] (Printed marks 400, 410) As shown in Figure 3, the printed marks 400, 410 are located outside the printed pattern portion 31 on the original sheet 20 and are associated with the printed pattern portion 31. In Figure 3, the printed marks 400, 410 are illustrated on the XY axes. The X-axis direction coincides with the transfer direction of the original sheet 20. The Y-axis direction coincides with the width direction of the original sheet 20. The printed marks 400, 410 are formed at regular intervals along the transfer direction (X-axis direction) of the original sheet 20.
[0054] Also, a pair of printed marks 400, 410 are formed separated from each other in the width direction (Y-axis direction) of the original sheet 20. The printed mark 400 is located above Figure 3 in the width direction of the original sheet 20, sandwiching the printed pattern portion 31, for example. The printed mark 410 is located below Figure 3. The upper printed mark 400 and the lower printed mark 410 are formed symmetrically with respect to the width direction (Y-axis direction) of the original sheet 20. The printed marks 400, 410 are commonly called "dragonflies", but are not limited to "dragonflies". For example, they are formed in a positive sign "plus" shape having intersection points a', b', c', d'. Although a "plus" shape is illustrated as the printed marks 400, 410, it is not limited to this. Although not shown, for example, they may be formed in a polygon, a circle, a geometric shape, etc.
[0055] (Concavo-convex pattern marks 500, 510) The concavo-convex pattern marks 500 and 510 are located outside the printed pattern portion 31 in the original sheet 20 and are associated with the concavo-convex pattern portion 51. The concavo-convex pattern marks 500 and 510 are formed at the same interval as the printing marks 400 and 410 along the transfer direction (X-axis direction) of the original sheet 20. Similar to the printing marks 400 and 410, a pair of concavo-convex pattern marks 500 and 510 are formed apart in the width direction (Y-axis direction) of the original sheet 20. The concavo-convex pattern mark 500 is located above in FIG. 3 in the width direction of the original sheet 20, for example, sandwiching the printed pattern portion 31. The concavo-convex pattern mark 510 is located below in FIG. 3. The upper concavo-convex pattern mark 500 and the lower concavo-convex pattern mark 510 are formed symmetrically with respect to the line in the width direction (Y-axis direction) of the original sheet 20, similar to the upper printing mark 400 and the lower printing mark 410.
[0056] The concavo-convex pattern marks 500 and 510 are formed, for example, in a positive sign "plus" shape having intersection points a, b, c, and d. The shapes of the concavo-convex pattern marks 500 and 510 are made different from those of the printing marks 400 and 410 so as to be distinguishable. For example, the shapes of the concavo-convex pattern marks 500 and 510 are formed larger than the shapes of the printing marks 400 and 410. Note that although the "plus" shape is exemplified as the concavo-convex pattern marks 500 and 510, it is not limited thereto. Although not shown, for example, it may be formed in a polygon, a circle, a geometric shape, etc. Also, as shown in FIGS. 3 and 4, the concavo-convex pattern marks 500 and 510 and the printing marks 400 and 410 form a set. That is, the intersection point a of the upper concavo-convex pattern mark 500 constitutes a set with the intersection point a' of the upper printing mark 400. Similarly, the intersection point b constitutes a set with the intersection point b', the intersection point c constitutes a set with the intersection point c', and the intersection point d constitutes a set with the intersection point d'.
[0057] (Specific positional relationship) Regarding specific positional relationships, although described previously, for example, when the intersection points a’, b’, c’, d’ of the printing marks 400, 410 overlap with the intersection points a, b, c, d of the uneven pattern marks 500, 510, the printed pattern portion 31 and the uneven pattern portion 51 are laid out in synchronization. (Correction information for the printed pattern portion 31) The correction information for the printed pattern portion 31 includes (1) dimensional correction information (hereinafter also referred to as “dimensional correction”) and (2) phase correction information (hereinafter also referred to as “phase correction”).
[0058] (Dimensional correction) The dimensional correction calculates the distance between adjacent uneven pattern marks 500, 510 in the transport direction (X-axis direction) and width direction (Y-axis direction) of the original sheet 20, and is created based on the uneven pattern distance information including the calculated distance. Also, the dimensional correction calculates the distance between adjacent printing marks 400, 410 in the transport direction (X-axis direction) and width direction (Y-axis direction) of the original sheet 20, and is created based on the ratio between the printing mark distance information including the calculated distance and the uneven pattern distance information.
[0059] Here, the distance between adjacent uneven pattern marks 500, 510 refers to, as shown in FIG. 3, for example, at the intersection points a~d of the uneven pattern marks 500, 510, the distance in the X-axis direction between intersection points a, b and between intersection points c, d. In the Y-axis direction, it refers to the distance between intersection points a, c and between intersection points b, d. Also, here, the distance between adjacent printing marks 400, 410 refers to, for example, at the intersection points a’~d’ of the printing marks 400, 410, the distance in the X-axis direction between intersection points a’, b’ and between intersection points c’, d’. In the Y-axis direction, it refers to the distance between intersection points a’, c’ and between intersection points b’, d’.
[0060] (Phase correction) The phase correction calculates the distance between adjacent uneven pattern marks 500, 510 and printing marks 400, 410 in the transport direction (X-axis direction) and width direction (Y-axis direction) of the original sheet 20, and is created based on the inter-mark distance information including the calculated distance. Here, the distance between the adjacent concave-convex pattern marks 500 and 510 and the printing marks 400 and 410 refers to the distance in the X-axis direction between the intersection point a' of the printing mark 400 and the intersection point a of the concave-convex pattern mark 500, and between the intersection point b' of the printing mark 400 and the intersection point b of the concave-convex pattern mark 500. In the Y-axis direction, it refers to the distance between the intersection point a' of the printing mark 400 and the intersection point a of the concave-convex pattern mark 500, and between the intersection point b' of the printing mark 400 and the intersection point b of the concave-convex pattern mark 500.
[0061] (Calculation of Dimension Correction) The dimension correction is calculated as follows. (1) At the intersection points a to d of the concave-convex pattern marks 500 and 510, calculate the distance in the X-axis direction between the intersection points a and b and between the intersection points c and d. Similarly, calculate the distance in the Y-axis direction between a and c, and between b and d. Take the average of each as the following "Equation 1".
[0062]
Equation
[0063] (2) Similarly, for the printing marks 400 and 410, calculate the following "Equation 2".
[0064]
Equation
[0065] That is, at the intersection points a' to d' of the printing marks 400 and 410, calculate the distance in the X-axis direction between the intersection points a' and b' and between the intersection points c' and d'. Similarly, calculate the distance in the Y-axis direction between a' and c', and between b' and d'.
[0066] (3) Based on the dimension of the previously calculated "Equation 1" from the concave-convex pattern marks 500 and 510, take the dimension of the printed pattern part 31, that is, the scale. When the printing dimensions before correction are x2' and y2', the printing dimension x3' after correction is the following "Equation 3" and becomes.
[0067] [Number]
[0068] The printed dimension y3' after correction becomes the following "Number 4".
[0069] [Number]
[0070] The printed dimensions x2' and x3' are located in the transfer direction (X-axis direction) of the original sheet 20 and correspond to the vertical dimension of the printed pattern portion 31. The printed dimensions y2' and y3' are located in the width direction (Y-axis direction) of the original sheet 20 and correspond to the horizontal dimension of the printed pattern portion 3 1.
[0071] For example, among the printed dimensions, when the vertical dimension is "x2' = x3'", in the vertical dimension, the printed pattern portion 31 and the concavo-convex pattern portion 51 are in sync, and there is no need to correct the vertical dimension of the printed pattern portion 31. On the other hand, among the printed dimensions, when the vertical dimension is "x2' < x3'", with respect to the concavo-convex pattern portion 51 the vertical dimension of the printed pattern portion 31 becomes relatively short, and in subsequent printings, it is necessary to correct the vertical dimension of the printed pattern portion 31 to be longer. Conversely, among the printed dimensions, when the vertical dimension is "x2' > x3'", with respect to the concavo-convex pattern portion 51 the vertical dimension of the printed pattern portion 31 becomes relatively long, and in subsequent printings, it is necessary to correct the vertical dimension of the printed pattern portion 31 to be shorter.
[0072] (Calculation of Phase Correction) Next, the phase correction is calculated as follows. With the above dimension correction, since the dimension correction is completed, it is presumed that for phase correction, if the phase on one side, that is, the printed mark 400 and the concavo-convex pattern mark 500 located on the upper side, or the printed mark 410 and the concavo-convex pattern mark 510 located on the lower side, are detected and corrected, the phase and dimension on the other side will also be aligned. For phase correction, the printed output position after correction was calculated from the following: (1) phase correction in the X-axis direction and (2) phase correction in the Y-axis direction.
[0073] (1) Phase correction in the X-axis direction For the phase correction in the X-axis direction, the following "Equation 5" was used.
[0074]
Equation
[0075] Shift the printed output position of the concavo-convex pattern portion 51 after dimension correction in the X-axis direction by the value obtained from the above "Equation 5". That is, in the previous stage of the above "Equation 5", calculate the distance between the intersection point a' of the printed mark 400 and the intersection point a of the concavo-convex pattern mark 500 (xa' - xa). Next, calculate the distance between the intersection point b' of the printed mark 400 and the intersection point b of the concavo-convex pattern mark 500 (xb' - xb). Then, calculate the average value of "xa' - xa" and "(xb' - xb). Finally, calculate the ratio of the pre-correction printed dimension x'2 to the post-correction printed dimension x'3 in the X-axis direction and calculate the printed output position of the concavo-convex pattern portion 51 after dimension correction.
[0076] (2) Phase correction in the Y-axis direction For the phase correction in the Y-axis direction, the following "Equation 6" was used.
[0077]
Equation
[0078] Shift the printed output position of the concavo-convex pattern portion 51 after dimension correction in the Y-axis direction by the value obtained from the above "Equation 6". That is, in the above "Equation 6", similar to the above "Equation 5", in the Y-axis direction, the printing output position of the concavo-convex pattern portion 51 after dimensional correction is calculated.
[0079] (Operation of Embodiment 1) According to the first embodiment, by using the concavo-convex pattern marks 500 and 510, it can be easily and surely confirmed that the printed pattern portion 31 and the concavo-convex pattern portion 51 are in synchronization by visually observing that the printed marks 400 and 410 have a specific positional relationship. Further, according to the first embodiment, the correction information of the printed pattern portion 31 can be accurately and simply calculated. According to the first embodiment, as correction information, dimensional correction of the printing dimensions and phase correction can be accurately and simply calculated.
[0080] (Description of Embodiment 2 Shown in FIG. 5) Embodiment 2 will be described with reference to FIG. 5. The first characteristic point of Embodiment 2 is that the one mark detector 300 of Embodiment 1 shown in FIG. 2 is composed of two detectors, namely a printed mark detector 320 and a concavo-convex pattern mark detector 330, as shown in FIG. 5. The second characteristic point of Embodiment 2 is that the one mark detection step J of Embodiment 1 shown in FIG. 2 is separated into two steps, namely a printed mark detection step L and a concavo-convex pattern mark detector M, as shown in FIG. 5. In the description of the second embodiment, for the same components as those in the first embodiment described with reference to FIGS. 1 to 4, the description will be omitted by using the same reference numerals.
[0081] (Manufacturing Apparatus 100 of Embodiment 2) The manufacturing apparatus 100 according to the second embodiment includes the following parts as shown in FIG. 5. Note that the following (1) and (2) will be described later. (1) Printed Mark Detector 320 (2) Concavo-Convex Pattern Mark Detector 330
[0082] (Printed Mark Detector 320) As shown in Fig. 5, the printing mark detector 320 is located downstream of the embossing roll 180 and detects the printing marks 400 and 410 (see Fig. 3). The printing mark detector 320 is electrically connected to the printing machine 140 directly or indirectly. (Embossed pattern mark detector 330) As shown in Fig. 5, the embossed pattern mark detector 330 is located downstream of the embossing roll 180 and is for detecting the embossed pattern marks 500 and 510 (see Fig. 3). The embossed pattern mark detector 330 is electrically connected to the printing machine 140 directly or indirectly and is.
[0083] (Steps of Embodiment 2) Embodiment 2 includes the following steps. Note that the following (1) to (3) will be described later. (1) Printing mark detection step L (2) Embossed pattern mark detection step M (3) Feedback step K
[0084] (Printing mark detection step L) The printing mark detection step L is located downstream of the embossed pattern mark forming step I and is a step of detecting the printing marks 400 and 410 (see Fig. 3) formed in the printing mark forming step H using the printing mark detector 320. In the printing mark detection step L, a detection signal 310 including the detected printing mark detection information is transmitted to the printing machine 140 directly or indirectly.
[0085] (Embossed pattern mark detection step M) The embossed pattern mark detection step M is located downstream of the embossed pattern mark forming step I and is a step of detecting the embossed pattern marks 500 and 510 (see Fig. 3) formed in the embossed pattern mark forming step I using the embossed pattern mark detector 330. In the embossed pattern mark detection step M, a detection signal 310 including the detected embossed pattern mark detection information is transmitted to the printing machine 140 directly or indirectly. (Feedback step K) The feedback step K is a step of correcting print information based on the print mark detection information detected in the print mark detection step L and the concavo-convex pattern mark detection information detected in the concavo-convex pattern mark detection step M.
[0086] (Operation of Embodiment 2) According to the second embodiment, by using two detectors, the burden on the single mark detector 300 of the first embodiment shown in FIG. 2 can be reduced. Further, according to the second embodiment, by separating into two steps, the burden of the single mark detection step J of the first embodiment shown in FIG. 2 can be reduced.
[0087] (Description of Embodiment 3 shown in FIG. 6) Embodiment 3 will be described with reference to FIG. 6. The first characteristic point of Embodiment 3 is that the use of the concavo-convex pattern marks 500 and 510 of the first embodiment shown in FIG. 3 is stopped. That is, in Embodiment 3, as shown in FIG. 6, a concavo-convex pattern detector 340 is used to detect the concavo-convex pattern portion 51 (see FIG. 3). In the description of the third embodiment, for the same components as those in the first embodiment described with reference to FIGS. 1 to 4, the description will be omitted using the same reference numerals.
[0088] (Steps of Embodiment 3) The third embodiment includes the following steps as shown in FIG. 6. Note that the following (1) and (2) will be described later. (1) Concavo-convex pattern detection step N (2) Feedback step K
[0089] (Concavo-convex pattern detection step N) The concavo-convex pattern detection step N is located after the concavo-convex pattern formation step E as shown in FIG. 6, and is a step of detecting the concavo-convex pattern portion 51 (see FIGS. 1 and 3) formed by the concavo-convex pattern formation step E. (Feedback step K)(Feedback step K) The feedback process K is a process of correcting the printing information based on the uneven pattern detection information detected in the uneven pattern detection process N.
[0090] (Operation of Embodiment 3) According to Embodiment 3, in the uneven pattern detection process N, by detecting the uneven pattern portion 51, the printing information can be corrected in the feedback process K. That is, by using the corrected printing information, and then forming the printed pattern portion 31 in the printing layer forming process C using the printing machine 140, the printed pattern portion 31 and the uneven pattern portion 51 can be synchronized. Further, according to Embodiment 3, since it is not necessary to use the uneven pattern marks 500 and 510 of Embodiment 1 shown in FIG. 3, not only can the structure of the manufacturing apparatus 100 be simplified, but the number of processes can also be reduced.
[0091] (Manufacturing Apparatus 100 of Embodiment 3) The manufacturing apparatus 100 according to Embodiment 3 includes the following parts as shown in FIG. 7. (1) Uneven pattern detector 340 In addition to detecting the uneven pattern portion 51 (see FIG. 3), the uneven pattern detector 340 may also detect the printing marks 400 and 410 (see FIG. 3) simultaneously. Although the uneven pattern detector 340 is composed of one detector, as in Embodiment 2 shown in FIG. 5 (not shown), it may also be composed of a plurality of detectors. That is, the uneven pattern detector 340 may be separated into a detector for detecting the uneven pattern portion 51 and a detector for detecting the printing marks 400 and 410.
[0092] (Other Processes of Embodiment 3) Embodiment 3 includes the following other processes. Note that the following (1) to (3) will be described later. (1) Printing mark forming process H (2) Printing mark detection process L (3) Feedback process K In addition, as other processes, although (1) to (3) described above are exemplified, the present invention is not limited thereto. For example, it is also possible to previously form the printing marks 400 and 410 on the original fabric sheet 20. When the printing marks 400 and 410 are formed discontinuously (offline), the printing mark forming step H may be omitted.
[0093] (Printing mark forming step H) The printing mark forming step H is included in the printing layer forming step C, and is a step of forming printing marks 400 and 410 (see FIG. 3) that are located outside the printed pattern portion 31 and are associated with the printed pattern portion 31 on the original fabric sheet 20. (Printing mark detection step L) The printing mark detection step L is included in the mark detection step J, and is a step of detecting the printing marks 400 and 410 formed by the printing mark forming step H. (Feedback step K) The feedback step K is a step of correcting the printing information based on the mark detection information related to the printing marks 400 and 410 detected by the printing mark detection step L in addition to the concavo-convex pattern detection information related to the concavo-convex pattern portion 51.
[0094] (Other operations of Embodiment 3) According to Embodiment 3, by using the printing marks 400 and 410, it is possible to easily know the relative position of the concavo-convex pattern portion 51 with respect to the concavo-convex pattern portion 51.
[0095] (Description of Embodiment 4 shown in FIG. 7) Embodiment 4 will be described with reference to FIG. 7. The first feature of Embodiment 4 is that, instead of the concavo-convex pattern detector 340 of Embodiment 3 described with reference to FIG. 6, as shown in FIG. 7, an image detector 350 is used. The second feature of Embodiment 4 is that it includes an image detection step O using the image detector 350. That is, when using the image detector 350 to capture an image from the surface side of the uneven pattern portion 51 shown in FIG. 1, since the protective layer 60, the resin layer 50, and the adhesive layer 40 are transparent, the printed pattern portion 31 is captured through. As a result, in one frame of the image, the printed pattern portion 31 and the uneven pattern portion 51 are simultaneously reflected, and it becomes possible to grasp the relative position of the uneven pattern portion 51 with respect to the printed pattern portion 31. In addition, in the fourth embodiment, in addition to the images of the printed pattern portion 31 and the uneven pattern portion 51, the printing marks 400 and 410 may be used assistively and simultaneously captured as a part of the image. Also, in the description of the fourth embodiment, for the same components as those in the first embodiment described with reference to FIGS. 1 to 4, the description is omitted using the same reference numerals.
[0096] (Manufacturing apparatus 100 of the fourth embodiment) As shown in FIG. 7, the manufacturing apparatus 100 according to the fourth embodiment includes the following parts. (1) Image detector 350 The image detector 350 simultaneously captures the printed pattern portion 31 and the uneven pattern portion 51 shown in FIG. 1, and for example, uses a CCD image sensor.
[0097] (Process of the fourth embodiment) As shown in FIG. 6, the fourth embodiment includes the following processes. Note that the following (1) and (2) will be described later. (1) Image detection process O (2) Feedback process K
[0098] (Image detection process O) The image detection process O is a process of simultaneously capturing the printed pattern portion 31 formed by the printing layer forming process C and the uneven pattern portion 51 formed by the uneven pattern forming process E using the image detector 350. Also, the image detection process O directly or indirectly transmits a detection signal 310 including the detected image detection information to the printing machine 140. (Feedback process K) The feedback process K is a process of correcting the printing information based on the image detection information detected by the image detection process O. In creating the correction information for the printing information, AI (artificial intelligence) may be used. For example, both images of the printed pattern portion 31 and the concavo-convex pattern portion 51 may be analyzed using AI, and based on the analysis result of the images, correction information may be created using AI.
[0099] (Operation of Embodiment 4) According to Embodiment 4, since the printed pattern portion 31 and the concavo-convex pattern portion 51 are simultaneously reflected in the image information detected by the image detector 350, it is not necessary to form and detect the concavo-convex pattern marks 500 and 510 as in Embodiment 1 described with reference to FIGS. 1 to 4.
Explanation of Reference Numerals
[0100] 10 Cosmetic sheet 20 Base fabric sheet 30 Printing layer 31 Printed pattern portion 40 Adhesive layer 50 Resin layer 51 Concavo-convex pattern portion 60 Protective layer 70 Primer layer 100 Manufacturing apparatus 110 Base fabric roll 120 Primer coater 130 Drying equipment for primer 140 Printing machine 150 Drying equipment for ink 160 T-die 170 Back roll 180 Embossing roll 190 Protective layer coater 200 Drying equipment for protective layer 210 Product roll A Base fabric sheet supply process B Primer layer formation process C Printing layer formation process D Resin layer formation process E Concavo-convex pattern formation process F Protective Layer Formation Process G Product Recovery Process 300 Mesh Print Detector 310 Detection Signal H Printed Mark Formation Process I Concave-Convex Pattern Mark Formation Process J Mark Detection Process K Feedback Process 400, 410 Printed Marks 500, 510 Concave-Convex Pattern Marks 320 Printed Mark Detector 330 Concave-Convex Pattern Mark Detector L Printed Mark Detection Process M Concave-Convex Pattern Mark Detection Process 340 Concave-Convex Pattern Detector N Concave-Convex Pattern Detection Process 350 Image Detector O Image Detection Process
Claims
1. A base fabric sheet supply step of pulling out and transferring a base fabric sheet from a base fabric roll, A printing layer forming step of forming a printing layer having a printed pattern portion on one surface of the base fabric sheet transferred by the base fabric sheet supply step, based on printing information related to printing, using a printing machine, A resin layer forming step of forming a transparent resin layer in the same orientation as the printing layer on the other surface of the printing layer formed by the printing layer forming step, which faces the opposite side to one surface adjacent to the base fabric sheet, An uneven pattern forming step of forming an uneven pattern portion in synchronization with the printed pattern portion on the other surface of the resin layer formed by the resin layer forming step, which faces the opposite side to one surface adjacent to the printing layer, A method for manufacturing a decorative sheet, which continuously executes: After the uneven pattern forming step, An image detection step of simultaneously imaging the printed pattern portion formed by the printing layer forming step and synchronized with the uneven pattern portion, and the uneven pattern portion formed by the uneven pattern forming step, A feedback step of correcting the printing information based on the image detection information detected in the image detection step, Characterized by including.
2. A base fabric sheet supply step of pulling out and transferring a base fabric sheet from a base fabric roll, A printing layer forming step of forming a printing layer having a printed pattern portion on one surface of the base fabric sheet transferred by the base fabric sheet supply step, based on printing information related to printing, using a printing machine, A resin layer forming step of forming a transparent resin layer in the same orientation as the printing layer on the other surface of the printing layer formed by the printing layer forming step, which faces the opposite side to one surface adjacent to the base fabric sheet, An uneven pattern forming step of forming an uneven pattern portion in synchronization with the printed pattern portion on the other surface of the resin layer formed by the resin layer forming step, which faces the opposite side to one surface adjacent to the printing layer, A method for manufacturing a decorative sheet, which continuously executes: After the uneven pattern forming step, An image detection step of simultaneously imaging the printed pattern portion formed by the printing layer forming step and the uneven pattern portion formed by the uneven pattern forming step, A feedback step of correcting the printing information based on the image detection information detected in the image detection step, Including, In the printing layer forming step, In the original sheet, it includes a printing mark forming step of forming a printing mark that is located outside the printed pattern portion and is associated with the printed pattern portion. In the image detection step, A method for manufacturing a decorative sheet, characterized by detecting the printed mark formed by the printing mark forming step in addition to the printed pattern portion and the concavo-convex pattern portion.
3. An original sheet supply step of pulling out and transferring an original sheet from an original roll, A printing layer forming step of forming a printing layer having a printed pattern portion on one surface of the original sheet transferred by the original sheet supply step based on printing information related to printing using a printing machine. A resin layer forming step of forming a transparent resin layer in the same direction as the printing layer on the other surface of the printing layer formed by the printing layer forming step, which faces the opposite side of the one surface adjacent to the original sheet. A concavo-convex pattern forming step of forming a concavo-convex pattern in synchronization with the printed pattern portion on the other surface of the resin layer formed by the resin layer forming step, which faces the opposite side of the one surface adjacent to the printing layer. A method for manufacturing a decorative sheet that continuously executes the above steps, After the concavo-convex pattern forming step, An image detection step of simultaneously imaging the printed pattern portion formed by the printing layer forming step and the concavo-convex pattern portion formed by the concavo-convex pattern forming step. A feedback step of correcting the printing information based on the image detection information detected in the image detection step. Including In the printing layer forming step, In the original sheet, it includes a printing mark forming step of forming a printing mark that is located outside the printed pattern portion and is associated with the printed pattern portion. In the image detection step, In addition to the printed pattern portion and the concavo-convex pattern portion, the printed mark formed by the printing mark forming step is detected. In the feedback step, A method for manufacturing a decorative sheet, characterized by correcting the printing information based on the image detection information consisting of only the printed pattern portion, the concavo-convex pattern portion, and the printed mark.
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