Laminate of reception label and producing method thereof

Abstract

To provide a laminate of reception labels that can be readily peeled when adhering to an article, can reduce an amount of waste release sheets to be discharged as waste, and can readily produce with a simple method.SOLUTION: A laminate of reception labels comprises at least two or more tack papers laminated in the following order of a substrate sheet, an adhesive layer, and a release sheet consisting of a release layer and a support sheet. In adjacent two tack sheets, a release sheet of one tack sheet and a substrate sheet of the other tack sheet are partially joined via an adhering layer, and thereby a housing part capable of housing an article to be housed is formed.SELECTED DRAWING: Figure 1(C)

Description

[Technical field]

[0001] The present invention relates to a storage label laminate and a manufacturing method thereof, and more particularly to a storage label laminate that has an opening and a storage portion capable of storing an object to be stored therein, and is used by being affixed to an article, and a manufacturing method thereof. [Background technology]

[0002] Conventionally, there has been known a storage label having a bag-shaped storage section capable of storing thin contents such as various documents, pamphlets, cards, etc., as typified by a delivery pack that can be attached to an article while storing a detailed slip of contents, a delivery note, a receipt, etc. of the contents. In such a storage label, the storage section is formed between a base sheet and a cover film superimposed on the surface of the base sheet, and an adhesive layer to be attached to the article is formed on the back surface of the base sheet (the opposite side to the cover film). Before being attached to an article, the storage label generally has the adhesive layer covered with a release sheet.

[0003] By the way, the release sheet is peeled off when the storage label is attached to the article and is discarded as waste. Therefore, if the release sheet can be eliminated, the amount of waste can be reduced, which is effective in saving resources and reducing costs.

[0004] Patent Document 1 (JP 2008-197261 A) discloses a storage label comprising a main body in which a storage section is formed between two layers of film, the peripheral portions of which are bonded together via an adhesive layer in whole or in part, an adhesive layer provided on the rear surface of the lower film for attaching the main body to an object to which the main body is attached, and an item stored within the storage section of the main body, wherein the adhesive layer and the adhesive layer are each composed of a heat-sensitive adhesive.

[0005] Patent Document 2 (Utility Model Registration No. 3111630) discloses an adhesive bag for slip covers without release paper, which is a bag-shaped slip cover made by laminating two plastic films and heat-welding the three edges with one end open, in which multiple rows of band-shaped adhesive layers are formed on the back of the lower sheet of the slip cover, and a release coating layer is formed on the surface of the upper sheet. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2008-197261 A [Patent Document 2] Utility Model Registration No. 3111630 Summary of the Invention [Problem to be solved by the invention]

[0007] In Patent Document 1, a heat-sensitive adhesive is used as an adhesive layer provided on the back surface of the lower film for adhering to the object. Since the heat-sensitive adhesive does not exhibit adhesiveness at room temperature, it is not necessary to temporarily attach it to a release paper, and the above problem can be solved. However, since the heat-sensitive adhesive exhibits adhesiveness when heated, a heating device is required to attach it to the object.

[0008] In Patent Document 2, a release coating layer is formed on the surface of a transparent plastic film that becomes an upper sheet, so it is necessary to wind it up in a roll. This requires the formation of separation lines such as perforations to separate the continuous film formed in the width direction into individual sheets, and the application of multiple rows of band-like adhesive layers, which makes the manufacturing process complicated.

[0009] The present invention has been completed in view of the above problems, and aims to provide, in one embodiment, a storage label laminate that can be easily manufactured by a simple method and that can reduce the amount of waste of release sheets that are peeled off when affixing to an article and discarded as garbage. In another embodiment, the present invention aims to provide a method for manufacturing such a storage label laminate. [Means for solving the problem]

[0010] As a result of intensive research, the inventors have found that a structure in which two or more tack papers are stacked in order, as described below, can reduce the amount of waste release sheets that are discarded as garbage, can be easily manufactured by a simple method, and can solve the above-mentioned problems. The present invention has been completed based on the above findings, and is exemplified below.

[0011] In one aspect, the present invention is a laminate of storage labels, the laminate including at least two or more tack papers laminated in this order with a base sheet, an adhesive layer, and a release sheet consisting of a release layer and a support sheet, and in two adjacent tack papers, the release sheet of one tack paper and the base sheet of the other tack paper are partially joined via an adhesive layer, thereby forming a storage section capable of storing an item to be stored.

[0012] In one embodiment of the present invention, the tack paper in the outermost layer of the laminate may include only a release sheet, without including a base sheet or an adhesive layer.

[0013] In one embodiment of the present invention, the adhesive layer may be provided along the peripheral edge of the tack paper in a shape that has a partial opening.

[0014] In one embodiment of the present invention, the tack paper has a rectangular peripheral edge, and the adhesive layer can be provided in a U-shape on the peripheral edge so that at least one side of the rectangle is an opening.

[0015] In one embodiment of the present invention, the tack paper has a rectangular peripheral portion, the adhesive layer is arranged in a U-shape surrounding the peripheral portion, and the release sheet can be provided with an opening cut into which the item to be contained can be placed.

[0016] In one embodiment of the present invention, the tack paper has a rectangular peripheral portion, the adhesive layer is arranged in a U-shape or a L-shape on the peripheral portion, and an area in which the base sheet is partially missing can be provided on the peripheral portion of the tack paper on the opening side so that at least one side of the peripheral portion becomes an opening.

[0017] In one embodiment of the present invention, the tack paper has a rectangular peripheral portion, the adhesive layer is provided on the peripheral portion in a U-shape or a L-shape, and the release sheet can be provided with an incision for partially removing the release sheet so that at least one side of the peripheral portion becomes an opening.

[0018] In one embodiment of the present invention, the tack paper has a rectangular peripheral portion, the adhesive layer is provided on the peripheral portion in a U-shape or a L-shape, and the release sheet can have an area where the release sheet is partially missing so that at least one side of the peripheral portion becomes an opening.

[0019] In another aspect, the present invention is a method for manufacturing a laminate of storage labels, the method including a first step of preparing at least two pieces of tack paper each having a base sheet, an adhesive layer, and a release sheet consisting of a release layer and a support sheet laminated in that order; a second step of providing an adhesive layer on the peripheral edge of the back surface of the release sheet of the tack paper or the front surface of the base sheet, or both; and a third step of stacking and bonding at least two pieces of the tack paper together to stack the tack papers.

[0020] In one embodiment of the present invention, the method includes a first step of preparing at least two pieces of tack paper that are n times the size of the storage label (n is an integer greater than or equal to 2); a second step of providing n adhesive layers that conform to the shape of the peripheral edge of the storage label on the back side of the release sheet of the tack paper or the front side of the base sheet, or both; a third step of stacking and bonding at least two pieces of the tack paper to form a tack paper laminate; and a fourth step of cutting the tack paper laminate to the size of the storage label.

[0021] In one embodiment of the present invention, the method may further include a step of providing a slit in either the base sheet or the release sheet for accommodating an object to be accommodated.

[0022] In one embodiment of the present invention, the method can further include a step of providing an incision in either the base sheet or the release sheet for accommodating an item to be contained, and a step of partially removing the base sheet or the release sheet along the incision. Effect of the Invention

[0023] According to the storage label laminate of one embodiment of the present invention, by using the release sheet used in the tack paper as the upper layer film, it is possible to reduce the amount of waste of the release sheet that is peeled off when attaching to an article and discarded as garbage. In addition, the storage label laminate can be easily manufactured by the simple method of laminating the tack paper as it is. [Brief description of the drawings]

[0024] [Figure 1(A)] FIG. 2 is a schematic diagram for explaining a stack of storage labels of the present invention. [Figure 1(B)] FIG. 2 is a schematic diagram for explaining a stack of storage labels of the present invention. [Figure 1(C)] FIG. 2 is a schematic diagram for explaining a stack of storage labels of the present invention. [Diagram 2] 10 is a schematic diagram for explaining another example of the storage-label laminate of the present invention. FIG. [Figure 3(A)] 1 is a schematic diagram for explaining an example of a configuration of a storage label of the present invention. [Figure 3(B)] 1 is a schematic diagram for explaining an example of a configuration of a storage label of the present invention. [Figure 4(A)] 11 is a schematic diagram for explaining another example of the configuration of the storage label of the present invention. FIG. [Figure 4(B)] 11 is a schematic diagram for explaining another example of the configuration of the storage label of the present invention. FIG. [Figure 4(C)] 11 is a schematic diagram for explaining another example of the configuration of the storage label of the present invention. FIG. [Figure 5(A)] 1 is a schematic diagram for explaining an example of a storage-label laminate of the present invention. [Figure 5(B)] 1 is a schematic diagram for explaining an example of a storage-label laminate of the present invention. [Figure 5(C)] 1 is a schematic diagram for explaining an example of a storage-label laminate of the present invention. [Figure 6(A)] FIG. 6 is a schematic diagram for explaining an example of a storage label in the stack of storage labels shown in FIGS. 5(A) to 5(C). [Figure 6(B)] FIG. 6 is a schematic diagram for explaining an example of a storage label in the stack of storage labels shown in FIGS. 5(A) to 5(C). [Figure 6(C)] FIG. 6 is a schematic diagram for explaining an example of a storage label in the stack of storage labels shown in FIGS. 5(A) to 5(C). [Figure 7(A)] 13 is a schematic diagram of a tack paper to explain yet another example of a storage label laminate of the present invention. FIG. [Figure 7(B)] 13 is a schematic diagram of a tack paper to explain yet another example of a storage label laminate of the present invention. FIG. [Figure 8(A)] 8 is a schematic diagram for explaining an example of a stack of storage labels of the present invention using the tack paper of FIG. 7(A) and FIG. 7(B). [Figure 8(B)] 8 is a schematic diagram for explaining an example of a stack of storage labels of the present invention using the tack paper of FIG. 7(A) and FIG. 7(B). [Figure 8(C)]It is a schematic diagram for explaining an example of a laminate of the storage label of the present invention using the tack paper of FIGS. 7(A) and 7(B). [Figure 9(A)] It is a schematic diagram for explaining the storage label in the laminate of the storage label of the present invention of FIGS. 8(A) to 8(C). [Figure 9(B)] It is a schematic diagram for explaining the storage label in the laminate of the storage label of the present invention of FIGS. 8(A) to 8(C). [Figure 9(C)] It is a schematic diagram for explaining the storage label in the laminate of the storage label of the present invention of FIGS. 8(A) to 8(C). [Figure 10(A)] It is a schematic diagram for explaining the storage label of the present invention of FIGS. 9(A) to 9(C). [Figure 10(B)] It is a schematic diagram for explaining the storage label of the present invention of FIGS. 9(A) to 9(C). [Figure 11(A)] It is a schematic diagram of a tack paper for explaining still another example of the laminate of the storage label of the present invention. [Figure 11(B)] It is a schematic diagram of a tack paper for explaining still another example of the laminate of the storage label of the present invention. [Figure 11(C)] It is a schematic diagram of a tack paper for explaining still another example of the laminate of the storage label of the present invention. [Figure 12(A)] It is a schematic diagram for explaining the laminate of the storage label of the present invention using the tack paper of FIGS. 11(A) to 11(C). [Figure 12(B)] It is a schematic diagram for explaining the laminate of the storage label of the present invention using the tack paper of FIGS. 11(A) to 11(C). [Figure 12(C)] It is a schematic diagram for explaining the laminate of the storage label of the present invention using the tack paper of FIGS. 11(A) to 11(C). [Figure 13] It is a schematic diagram for explaining the storage label in the laminate of the storage label of FIG. 12(C). [Figure 14(A)] It is a schematic diagram for explaining an example of a method for manufacturing the laminate of the storage label of the present invention. [Figure 14(B)]1 is a schematic diagram for explaining an example of a method for producing a storage-label laminate of the present invention. FIG. [Figure 14(C)] 1 is a schematic diagram for explaining an example of a method for producing a storage-label laminate of the present invention. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] Next, the embodiments of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the following embodiments, and it should be understood that appropriate design changes, improvements, etc. may be made based on the ordinary knowledge of those skilled in the art without departing from the spirit of the present invention. Note that the dimensions, scales, angles, etc. in the drawings explaining each embodiment of the present invention are shown for convenience to aid understanding, and do not necessarily represent the actual dimensions, scales, angles, etc.

[0026] (1. Stack of storage labels) 1(A) to 1(C) are schematic diagrams for explaining a storage label laminate 100 of the present invention. According to FIG. 1(A) to FIG. 1(C), the storage label laminate 100 of one embodiment of the present invention includes at least two or more tack papers 10 (FIG. 1(A) and (B)) in which a base sheet 1, an adhesive layer 2, and a release sheet 3 consisting of a release layer 31 and a support sheet 32 ​​are laminated in this order, and in two adjacent tack papers 10, the release sheet 3 of one tack paper (FIG. 1(A)) and the base sheet 1 of the other tack paper (FIG. 1(B)) are partially bonded via an adhesive layer 4, thereby forming a storage section capable of storing an object to be stored (FIG. 1(C)). When peeled off from the laminate 100, the release sheet 3 and the base sheet 1 including the storage section form a storage label 5 capable of storing an object to be stored. The adhesive layer 4 can be provided along the peripheral portion of the tack paper 10 in a shape that opens partially. In the example of Figure 1, the tack paper 10 has a rectangular peripheral portion consisting of two pairs of opposing sides, and in Figure 1(B), an adhesive layer 4 is provided in a U-shape on the surface of the base sheet 1 opposite the release sheet 3 so that at least one side of the peripheral portion becomes an opening.

[0027] 1(A), the tack paper 10 used in this embodiment may be one in which a base sheet 1, an adhesive layer 2, and a release sheet 3 consisting of a release layer 31 and a support sheet 32 ​​are laminated in this order. The number of tack papers 10 is not particularly limited, but may be, for example, 3 or more and 500 or less.

[0028] The base sheet 1 used in the tack paper 10 is not particularly limited, and for example, a paper base material or a resin film base material can be used depending on the purpose and the situation of use. Specifically, paper base materials such as fine paper, art paper, coated paper, cast coated paper, etc., synthetic resin films such as polypropylene, polyethylene, polyethylene terephthalate, polyvinyl chloride, cellulose, etc., synthetic paper made mainly from these synthetic resins, etc. can be used. If necessary, an easy-adhesion treatment can be performed to improve the adhesion between the base sheet and the adhesive layer.

[0029] The thickness of the base sheet 1 is appropriately 10 to 300 μm, and preferably 10 to 100 μm. The shape and size of the base sheet 1 are not particularly limited, but a rectangular shape having a rectangular peripheral portion consisting of two pairs of opposing sides is usually suitable for containing the contained items.

[0030] The adhesive layer 2 is not particularly limited, and a general adhesive, a strong adhesive, a weak adhesive, a removable adhesive, etc. can be used depending on the purpose and the situation of use. Specifically, adhesives such as acrylic, urethane, epoxy, rubber, polyester, cellulose, emulsion, etc. can be used. In addition, fillers, tackifiers, curing agents, etc. can be appropriately used as additives for improving the properties of the adhesive, if necessary.

[0031] The thickness of the adhesive layer 2 is not particularly limited as long as it allows attachment to an adherend, and is usually 20 μm to 200 μm, preferably 25 μm to 75 μm. When forming the adhesive layer 2 on the base sheet 1, the adhesive can be formed using a coating method such as gravure coating, gravure reverse coating, comma coating, knife coating, or die coating.

[0032] There is no particular limitation on the material of the release sheet 3, and any conventionally known material may be used. As the release sheet 3, a release layer 31 using a release agent such as silicone resin, fluorine resin, alkyd resin, wax, etc. is formed on a support sheet 32 ​​such as paper or synthetic paper, such as fine paper, craft paper, glassine paper, or clay-coated paper, a synthetic resin film, such as polypropylene, polyethylene, polyethylene terephthalate, polyvinyl chloride, or cellulose, or a polylaminated paper obtained by laminating a synthetic resin, such as polyethylene, on craft paper or fine paper, etc., is appropriately used.

[0033] When forming the release layer 31 on the support sheet 32, the release agent can be applied by a coating method such as gravure coating, gravure reverse coating, comma coating, knife coating, die coating, or the like.

[0034] The release sheet 3 is usually used to protect the adhesive layer 2, and is peeled off and discarded when affixed to an adherend, but in the present invention, the release sheet 3 does not need to be discarded because it is used as the upper film of the storage label 5. It is preferable to use a transparent or semi-transparent film for the upper film (release sheet 3) so that the contents stored in the storage section 52 can be seen through it. Conversely, it may be opaque so that the contents cannot be seen through it.

[0035] The thickness of the release sheet 3 is appropriately 10 to 300 μm, and preferably 10 to 100 μm. The shape, size, etc. of the release sheet 3 may be the same as that of the base sheet 1.

[0036] The material of the adhesive layer 4 is not particularly limited as long as it can bond the release sheet 3 and the base sheet 1 together, but a heat-sensitive adhesive layer that does not exhibit adhesive properties at room temperature but becomes adhesive when activated by heating is preferred when stacking the tack paper 10 to form the laminate 100.

[0037] The heat-sensitive adhesive layer is mainly composed of a thermoplastic resin such as vinyl acetate-ethylene copolymer, vinyl acetate-acrylic acid ester copolymer, vinyl acetate-ethylene-styrene copolymer, vinyl acetate-ethylene-vinyl chloride copolymer, vinyl-ethylene-acrylic acid ester copolymer, ethylene-vinyl chloride copolymer, (meth)acrylic acid ester copolymer, styrene-isoprene copolymer, styrene-butadiene copolymer, acrylonitrile-butadiene copolymer, etc., blended with a solid plasticizer or a tackifier, etc., and can be formed using a heat-sensitive adhesive such as a hot melt type adhesive, a heat seal type adhesive, a delayed tack type adhesive, etc. In particular, it is preferable to use a heat seal type adhesive or a delayed tack type adhesive, since it can be easily patterned by a printing method such as screen printing, gravure printing, offset printing, flexographic printing, etc., and the adhesiveness activated by heating continues for a long time even after cooling. When a heat-sensitive adhesive is used for the adhesive layer 4, the temperature at which the adhesive layer 4 is activated and exhibits adhesiveness is appropriately 60°C to 180°C, and preferably 80°C to 150°C.

[0038] The adhesive layer 4 is formed with a predetermined width over the periphery of the superposed base sheet 1 and support sheet 32 ​​so that at least a part of the periphery becomes an opening 51, and the storage section 52 is formed inside the area surrounded by this periphery. The thickness of the adhesive layer 4 is appropriately 3 μm to 30 μm, and the width of the adhesive layer 4 formed on the periphery is appropriately designed depending on the size of the storage label 5. For example, in the case of a storage label 5 having a length x width of 80 mm to 100 mm x 100 mm to 150 mm, the width of the adhesive layer 4 is preferably about 2 mm to 10 mm. Here, the width of the adhesive layer 4 means the shortest distance connecting the outer periphery and the inner periphery of the adhesive layer 4.

[0039] FIG. 2 is a schematic diagram for explaining another example of the storage label laminate 100 of this embodiment. In the storage label laminate 100 in FIG. 1(C) which is merely a stack of tack papers 10 and 20, the base sheet 1 and adhesive layer 2 of the outermost layer (i.e., the top in the drawing, meaning the tack paper 10 which is stacked first) are not necessarily required because they are not used as the storage label 5. In FIG. 2, the base sheet 1 of the topmost tack paper 10 has been removed together with the adhesive layer 2 from the storage label laminate 100 in FIG. 1(C). Alternatively, since the topmost base sheet 1 does not need to be used as the storage label 5, it can be freely used as a product package, for example, to protect the product (storage label) or to display a pattern or letters to convey product information.

[0040] 3(A) and 3(B) are schematic diagrams for explaining an example of the configuration of the storage label 5 of this embodiment. In this embodiment, the storage label 5 that can be attached to an adherend has, as shown in Fig. 3(A), a release sheet 3 consisting of a release layer 31 and a support sheet 32 ​​at the top, a base sheet 1 and a pressure-sensitive adhesive layer 2 at the bottom, and the release sheet 3 and the base sheet 1 overlapped with an adhesive layer 4 interposed therebetween. As shown in Fig. 3(B), the storage label 5 has the release sheet 3 used as an upper layer film and the base sheet 1 used as a lower layer film, and the stored item 6 is stored between the release sheet 3 and the base sheet 1.

[0041] 4(A) to 4(C) are schematic diagrams for explaining another example of the configuration of the storage label 5 of this embodiment. In FIG. 4(A), the storage label 5 has a rectangular peripheral portion consisting of two pairs of opposing two sides, and an upper layer film consisting of a release sheet 3 and a lower layer film consisting of a base sheet 1 and an adhesive layer 2 are superimposed via an adhesive layer 4 provided in a square shape so as to surround the entire periphery of the peripheral portion (FIG. 4(B)). In the storage label 5 of FIG. 4, as shown in FIG. 4(B), a slit 71 for storing the stored object 6 is provided in the release sheet 3, and as shown in FIG. 4(c), the stored object 6 is stored through an opening formed by the slit 71 in the release sheet 3. Instead of the slit 71, a perforation that can be easily opened can also be provided.

[0042] 5(A) to 5(C) are schematic diagrams for explaining an example of a storage label laminate 100 of this embodiment. In Fig. 5(A), the tack paper 10 has a rectangular peripheral portion consisting of two pairs of opposing sides, and a notch 72 is provided on one side of the peripheral portion of the base sheet 1. As shown in Fig. 5(B), the base sheet 1 of the tack paper 10, which is the lower film, is overlapped with one side of the adhesive layer 2 partially missing (53) along the notch 72, forming a storage label 5 laminate 100 as shown in Fig. 5(C).

[0043] In the example of Fig. 5, the adhesive layer 4 is provided on the base sheet 1. The adhesive layer 4 may be provided in a U-shape on the peripheral portion of the base sheet 1, or in a square shape so as to surround the entire peripheral portion. If the adhesive layer 4 is provided on the base sheet 1 of the tack paper 10, the base sheet 1 of the tack paper 10, which serves as the lower film before overlapping, and the adhesive layer 2 can be partially removed (53) from above the release sheet 3 along the incision 72.

[0044] 6(A) to 6(C) are schematic diagrams for explaining the storage label 5 in the storage label laminate 100 shown in FIG. 5(A) to FIG. 5(C). As shown in FIG. 6(A), the storage label 5 is formed by overlapping an upper layer film made of a release sheet 3 and a lower layer film made of a base sheet 1 and an adhesive layer 2 with an adhesive layer 4 interposed therebetween. The base sheet 1 has an area 53 where one side (the opening side) is partially cut out along a cut 72, and the upper layer film is protruding. As shown in FIG. 6(B), the object 6 can be easily stored in the storage label 5 along the protruding upper layer film. Also, as shown in FIG. 6(C), the storage label 5 containing the object 6 is bonded to the lower layer film via the adhesive layer 2 by folding the protruding upper layer film, so that the object 6 can be prevented from falling out unintentionally.

[0045] 7(A) and 7(B) are schematic diagrams of a tack paper 10 for illustrating yet another example of the storage label laminate 100 of the present invention. In Fig. 7(A), the tack paper 10 has a rectangular peripheral portion consisting of two pairs of opposing two sides, and a notch 73 is provided on one side of the peripheral portion of the release sheet 3 as shown in Fig. 7(B).

[0046] Fig. 8(A) to Fig. 8(C) are schematic diagrams for explaining an example of a stack 100 of storage labels using the tack paper of Fig. 7(A) and Fig. 7(B). In Fig. 8(A), a notch 73 is provided on one side of the peripheral portion of the release sheet 3 of the tack paper 10. As shown in Fig. 8(B), an adhesive layer 4 is provided on the base sheet 1 of the tack paper 10, which serves as the lower layer film, and as shown in Fig. 8(C), the upper tack paper 10 and the lower tack paper 10 are overlapped with the adhesive layer 4 interposed therebetween to form the stack 100 of storage labels 5.

[0047] In the example of FIG. 8, the adhesive layer 4 is provided in a U-shape on the peripheral portion of the base sheet 1, except for an area 53 on the opening side. The area 53 on the opening side is an area that is partially missing from the release sheet 3 along a cut 73 when used as a storage label 5. The adhesive layer 4 may be provided in a U-shape up to the end of the opening side of the base sheet 1, or may be provided in a square shape so as to surround the entire peripheral portion. In this case, by providing a glue-blocking layer (described later) in the area 53 on the opening side of the base sheet 1 or the adhesive layer 4, which becomes the lower layer film, it can be partially removed (53) along the cut 73 from the release sheet 3, which becomes the upper layer film after superposition.

[0048] 9(A) to 9(C) are schematic diagrams for explaining the storage label 5 in the storage label stack 100 of FIG. 8(A) to 8(C). FIG. 9(A) is a structure including the uppermost base sheet 1 removed from the storage label stack 100 of FIG. 8(C). The base sheet 1 is removed together with the adhesive layer 2 and the opening side region 53 of the release sheet 3. FIG. 9(B) is a storage label 5 made of the storage label stack 100 of FIG. 8(C). The storage label 5 is configured such that an upper layer film made of the release sheet 3 from which the opening side region 53 has been removed and a lower layer film made of the base sheet 1 and the adhesive layer 2 are superimposed via the adhesive layer 4, with the lower layer film protruding. FIG. 9(C) is the storage label stack 100 after one storage label 5 has been removed. The area 53 on the opening side of the release sheet 3 has been removed while remaining attached to the adhesive layer 2 of the storage label 5 in FIG. 9(B).

[0049] 10(A) and 10(B) are schematic diagrams for explaining the storage label 5 of FIG. 9(A) to FIG. 9(C). FIG. 10(A) is different from FIG. 9(B) in that the region 53 on the opening side of the release sheet 3 attached to the adhesive layer 2 of the storage label 5 is removed. The release sheet 3 in the region 53 on the opening side may be removed before or after it is attached to the adherend. The region 53 on the opening side made of the release sheet 3 is in the form of a thin film, so that even if it remains attached to the adhesive layer 2, there is no problem in attaching it to the adherend. In addition, since the release sheet 3 covers the adhesive layer 2 in the region 53 on the opening side, it functions as a knob when attaching it to the adherend, improving the workability of alignment, correction of attachment position, and the like.

[0050] 10(B), the object 6 can be easily accommodated in the storage label 5 along the protruding lower film. In addition, since the lower film protrudes from the upper film, the object 6 can be easily accommodated in the storage label 5 even after the storage label 5 is attached to the adherend.

[0051] 11(A) to 11(C) are schematic diagrams of a tack paper 10 for explaining another example of the storage label laminate 100 of this embodiment. In Fig. 11(A), the tack paper 10 has a rectangular peripheral portion consisting of two pairs of opposing sides, and as shown in Fig. 11(B), a notch 73 is provided on one side of the peripheral portion of the release sheet 3. Also, as shown in Fig. 11(C), the adhesive layer 2 is provided with a glue-blocking layer 8 in an area 53 on the opening side where the release sheet 3 is removed along the notch 73.

[0052] The adhesive blocking layer 8 is a layer that partially seals the adhesive force of the adhesive layer 2, and can be formed by performing an adhesive blocking treatment with silicone, varnish, or the like. This seals the adhesive force of the area 53 on the opening side of the adhesive layer 2, and allows the release sheet 3 to be easily removed along the incision 73. The adhesive blocking treatment can be performed, for example, by once peeling the release sheet 3 from the tack paper 10, printing silicone or varnish, or the like, on the part of the adhesive layer 2 where the adhesive force is to be sealed, and then re-attaching the release sheet 3. The thickness of the adhesive blocking layer 8 is, for example, 1 μm to 10 μm, preferably 2 μm to 7 μm. The adhesive blocking layer 8 may be formed with colored ink other than colorless varnish, and may also be formed by a method of partially attaching a film or a method of partially not providing an adhesive layer.

[0053] 12(A) to 12(C) are schematic diagrams for explaining an example of a storage label laminate 100 using the tack paper 10 of FIG. 11(A) to FIG. 11(C). In FIG. 12(A), a notch 73 is provided on one side of the peripheral portion of the release sheet 3 of the tack paper 10, and a glue-blocking layer 8 is provided on the adhesive layer 2 in an area 53 on the opening side where the release sheet 3 is removed along the notch 73. As shown in FIG. 12(B), an adhesive layer 4 is provided on the base sheet 1 of the tack paper 10, which serves as a lower layer film, and as shown in FIG. 12(C), after the area 53 on the opening side of the release sheet 3 is removed along the notch 73, the upper tack paper 10 and the lower tack paper 10 are superimposed via the adhesive layer 4 to form a storage label laminate 100.

[0054] In the example of Figure 12, the adhesive layer 4 is provided in a U-shape on the peripheral portion of the base sheet 1 except for the area 53 on the opening side, but as in the example of Figure 8, the adhesive layer 4 may be provided in a U-shape up to the end of the base sheet 1 on the opening side, or may be provided in a square shape so as to surround the entire peripheral portion.

[0055] FIG. 13 shows the storage label 5 in the storage label laminate 100 of FIG. 12(C). The storage label 5 is configured such that an upper layer film made of a release sheet 3 from which an area 53 on the opening side has been removed, and a lower layer film made of a base sheet 1 and an adhesive layer 2 are superimposed via an adhesive layer 4, and the lower layer film is protruding. In FIG. 13, the adhesive layer 8 covers the adhesive layer 2 in the area 53 on the opening side, so that unlike FIG. 9(B), even if the area 53 on the opening side made of the release sheet 3 is not attached to the adhesive layer 2, the area 53 on the opening side covered by the adhesive layer 8 functions as a knob when attaching to an adherend, improving workability. Also, as in FIG. 10(B), the contents 6 can be easily stored in the storage label 5 along the protruding lower layer film.

[0056] (2. Manufacturing method of the storage label laminate) Next, a method for manufacturing the laminate of the storage label of the present invention will be described. Referring to FIG. 1, first, as shown in FIG. 1(A) and (B), tack papers 10 and 20 are prepared in which a base sheet 1, an adhesive layer 2, and a release sheet 3 consisting of a release layer 31 and a support sheet 32 ​​are laminated in this order (first step). Here, one of the two tack papers (FIG. 1(A)) is assumed to be the upper tack paper 10, and the other (FIG. 1(B)) is assumed to be the lower tack paper 20. Next, an adhesive layer 4 is provided on the base sheet 1 of the lower tack paper 20 (second step). In FIG. 1, the tack papers 10 and 20 have a rectangular peripheral portion consisting of two pairs of opposing two sides, and the adhesive layer 4 is provided in a U-shape on the peripheral portion of the lower tack paper 20 so that one side becomes an opening. Next, the upper tack paper 10 and the lower tack paper 20 are overlapped with the adhesive layer 4 interposed therebetween (third step). Similarly, any number of lower tack papers 20 are stacked together to produce a storage label stack 100 as shown in FIG. 1(C).

[0057] In FIG. 1(B), the adhesive layer 4 is provided in a U-shape on the periphery of the base sheet 1, but as shown in FIG. 4(A), it may be provided in a square shape so as to surround the entire periphery of the base sheet 1. The adhesive layer 4 may be provided on the periphery of the release sheet 3 or the base sheet 1, or on both, as long as two tack papers can be laminated together. When a heat-sensitive adhesive layer is used for the adhesive layer 4, the sheets may be laminated in any number and then laminated by applying temperature and pressure using a heat press or the like. The temperature and pressure required for lamination may be appropriately set depending on the number of sheets to be laminated and the balance between the pressure-sensitive adhesive layer and the adhesive layer. For example, if the number of sheets to be laminated is as small as about 10, the sheets may be laminated at a heating temperature of 80° C. to 160° C., a pressing pressure of 0.1 MPa to 5 MPa, and a pressing time of about 1 second to 30 seconds. In addition, if the number of overlapping sheets is large, such as about 50, they may be laminated at the same heating temperature with a press pressure of 0.001 MPa to 0.005 MPa and a press time of about 5 to 30 minutes. If a long time is required at a low temperature and low pressure, the lamination may be performed by placing the sheets in an oven or thermostatic bath under a load.

[0058] In this embodiment, the process may include a step of providing the incisions 71, 72, and 73 in the release sheet 3 and the base sheet 1. The method of forming the incisions 71, 72, and 73 in the tack paper 10 is not particularly limited, and for example, a Vic blade, a Pinnacle (registered trademark) blade, or a mold can be used, and machines such as laser light and a machining center can also be used. The incisions 71, 72, and 73 can be half-cut to any depth according to the thickness of the release sheet 3 and the base sheet 1. In the case of the storage label 5 shown in FIG. 4, the release sheet 3 of the tack paper 10 and 20 is half-cut in advance, and an adhesive layer 4 is provided on the base sheet 1 of the lower tack paper 20, and an arbitrary number of pieces are stacked together to produce the storage label stack 100. 6, the base sheet 1 of the tack papers 10 and 20 is half-cut in advance, an adhesive layer 4 is provided on the base sheet 1 of the lower tack paper 20, and then the base sheet 1 is partially removed along the cut 72, after which any number of sheets are stacked together to produce the stack 100 of storage labels. The step of providing the cuts 71, 72, and 73 can be performed, for example, between the first and second steps.

[0059] In this embodiment, the method may include a step of removing the base sheet 1 of the uppermost tack paper 10 together with the adhesive layer 2 from the stack of tack papers. This step may be performed after the third step, or may be performed on the uppermost tack paper 10 when preparing the tack papers 10 in the first step. Alternatively, the method may include a printing step of applying a pattern, letters, or other indications to convey product information to the uppermost base sheet 1. In addition, the method may include a step of providing an adhesive-blocking layer 8 on the adhesive layer 2 as described above.

[0060] One embodiment of the method for manufacturing the storage label of the present invention has been described above. In the method for manufacturing the storage label of the present invention, the size of the tack paper does not necessarily have to be the same as the size of the storage label 5. As shown in Figs. 14(A) to 14(C), a tack paper having a size n times (n is an integer of 2 or more) that of the storage label may be used. Figs. 14(A) to 14(C) are schematic diagrams for explaining another example of the method for manufacturing the storage label laminate 100 of the present invention. First, as shown in Fig. 14(A), an upper tack paper 10 and a lower tack paper 20 having a size n times that of the storage label 5, in which a base sheet 1, an adhesive layer 2, and a release sheet 3 consisting of a release layer 31 and a support sheet 32 ​​are laminated in this order, are prepared (first step). Next, n adhesive layers 4 are provided on the base sheet 1 of the lower tack paper 20, following the shape of the peripheral portion of the storage label 5 (second step). In FIG. 14(A), 20 adhesive layers 4 are provided in a U-shape so that one side of the storage label having a rectangular periphery consisting of two pairs of opposing two sides becomes an opening. Next, the upper tack paper 10 and the lower tack paper 20 are overlapped with the adhesive layer 4 (third step). Similarly, any number of lower tack papers 20 are overlapped and stacked to form a tack paper stack 200, and then the tack paper stack 200 may be cut to the size of the storage label 5 using a known method such as a cutting machine to manufacture the stack 100 of the storage label 5 (fourth step). In FIG. 14, a half cut is made in advance on the base sheet 1 of the lower tack paper 20, and an adhesive layer 4 is provided on the base sheet 1 of the lower tack paper 20, and then the base sheet 1 is partially removed along the half cut. EXAMPLES

[0061] Hereinafter, an embodiment of the storage-label laminate of the present invention will be described with reference to Fig. 14(A) to Fig. 14(C). Note that Fig. 14(A) to Fig. 14(C) are provided for reference of the manufacturing procedure of the storage-label laminate of the present invention, and do not entirely match the description of the following embodiment.

[0062] Example 1 Tack papers 10 and 20 (size: 545 mm x 394 mm, Avery Dennison BM0301) were prepared, in which a base sheet 1 (PP 52 μm), an acrylic adhesive layer 2, and a release sheet 3 consisting of a release layer 31 (silicone) and a support sheet 32 ​​(PET 30 μm) were laminated in this order. Next, as shown in FIG. 14(A), an adhesive layer 4 (Toyo Morton heat sealant EH-A700) was used on the base sheet 1 of the lower tack paper 20 to form 5 x 5 U-shaped adhesive layers (width 5 mm, thickness 6 μm) so that one side of the storage label 5 (outer dimensions 105 mm x 77 mm) would be an opening. Next, the upper tack paper 10 and the lower tack paper 20 were overlapped with the adhesive layer 4 interposed therebetween. Similarly, as shown in Fig. 14(B), five sheets of the lower tack paper 20 were stacked and bonded together by heat pressing (temperature 150°C, pressure 2 MPa, press time 5 seconds) to produce a tack paper laminate 200. Finally, as shown in Fig. 14(C), the tack paper laminate 200 was cut to the size of the storage label 5 using a cutter to produce the storage label 5 laminate 100 shown in Fig. 1. Note that Example 1 differs from the embodiment of Fig. 14 in that the base sheet 1 of the lower tack paper 20 was not half-cut or partially removed.

[0063] Example 2 A laminate 100 of storage labels 5 was produced in the same manner as in Example 1. However, half-cutting was performed in advance on the release sheets 3 of the tack papers 10 and 20, and the adhesive layer 4 was made to surround the entire peripheral portion of the storage label 5, thereby producing a laminate of storage labels 5 as shown in FIG.

[0064] Example 3 A laminate 100 of storage labels 5 was produced in the same manner as in Example 1. However, a half cut was made in advance on the base sheet 1 of the tack paper 20 before forming the adhesive layer 4, and the base sheet 1 was partially scraped and removed along the half cut, and then the laminate 100 of storage labels 5 shown in FIG. 5 was produced by overlapping it with the tack paper 20.

[0065] Example 4 A laminate 100 of storage labels 5 was produced in the same manner as in Example 1. However, the release sheet 3 of the tack papers 10 and 20 was half-cut in advance, and the adhesive layer 4 was made U-shaped except for the region 53 on the opening side of the storage label 5, to produce the laminate 100 of storage labels 5 shown in FIG.

[0066] Example 5 A laminate 100 of storage labels 5 was produced in the same manner as in Example 4. However, after forming an adhesive-blocking layer 8 in advance between the release sheet 3 and the adhesive layer 2, a half cut was made in the release sheet 3, and the release sheet 3 was partially removed along the half cut by scraping, and then superimposed with tack papers 10 and 20 to produce the laminate 100 of storage labels 5 shown in FIG.

[0067] In all of the above Examples 1 to 5, the storage labels 5 could be removed one by one, and the release sheet 3 that was discarded was only the release sheet 3 of the last tack paper 10. [Explanation of symbols]

[0068] 1 Base sheet 2 Adhesive layer 3 Release sheet 31 Peeling layer 32 Support Sheet 4 Adhesive layer 5. Containment Label 51 Opening 52 Storage unit 6. Detained items 71, 72 73 Cutting 8. Glue-killing layer 10, 20 Tack paper 100 Laminate of storage labels 200 Tack paper laminate

Claims

1. A stack of storage labels, The laminate includes at least two or more tack papers in which a base sheet, a pressure-sensitive adhesive layer, and a release sheet composed of a release layer and a support sheet are laminated in this order, A laminate in which the release sheet of one tack paper and the base sheet of the other tack paper are partially joined via an adhesive layer between two adjacent tack papers, thereby forming a storage section capable of storing an item to be stored.

2. 2. The laminate according to claim 1, wherein the tack paper in the outermost layer of the laminate does not include a base sheet or an adhesive layer, but includes only a release sheet.

3. The laminate according to claim 1 or 2, wherein the adhesive layer is provided along the peripheral edge of the tack paper in a shape that has a partial opening.

4. 3. The laminate according to claim 1, wherein the tack paper has a rectangular peripheral edge, and the adhesive layer is provided in a U-shape on the peripheral edge so that at least one side of the rectangle is an opening.

5. 3. The laminate of claim 1 or 2, wherein the tack paper has a rectangular peripheral portion, the adhesive layer is arranged in a square shape to surround the peripheral portion, and the release sheet has an opening cut into which an object to be contained can be placed.

6. The laminate described in claim 1 or 2, wherein the tack paper has a rectangular peripheral portion, the adhesive layer is provided on the peripheral portion in a U-shape or a L-shape, and an area where the base sheet is partially missing is provided on the peripheral portion of the tack paper on the opening side so that at least one side of the peripheral portion is an opening.

7. 3. The laminate of claim 1 or 2, wherein the tack paper has a rectangular peripheral portion, the adhesive layer is provided on the peripheral portion in a U-shape or a L-shape, and the release sheet is provided with an incision for partially removing the release sheet so that at least one side of the peripheral portion becomes an opening.

8. 3. The laminate of claim 1 or 2, wherein the tack paper has a rectangular peripheral portion, the adhesive layer is provided on the peripheral portion in a U-shape or a L-shape, and the release sheet has an area where the release sheet is partially missing so that at least one side of the peripheral portion is an opening.

9. A method for manufacturing a stack of storage labels, comprising the steps of: A method for manufacturing a laminate, comprising: a first step of preparing at least two pieces of tack paper each having a base sheet, an adhesive layer, and a release sheet consisting of a release layer and a support sheet laminated in that order; a second step of providing an adhesive layer on the peripheral edge of the back surface of the release sheet of the tack paper or the front surface of the base sheet, or both; and a third step of stacking and bonding at least two pieces of the tack paper together to laminate the tack papers.

10. A method for manufacturing a laminate as described in claim 9, comprising: a first step of preparing at least two pieces of tack paper each having a size n times (n is an integer greater than or equal to 2) the size of the storage label; a second step of providing n adhesive layers conforming to the shape of the peripheral edge of the storage label on the back surface of the release sheet of the tack paper or the front surface of the base sheet, or both; a third step of stacking and bonding at least two pieces of tack paper together to form a tack paper laminate; and a fourth step of cutting the tack paper laminate to the size of the storage label.

11. The method for producing a laminate according to claim 9 or 10, further comprising the step of providing a cut in either the base sheet or the release sheet for accommodating an object to be accommodated.

12. The method for producing a laminate according to claim 9 or 10, further comprising the steps of: providing a cut in either the base sheet or the release sheet for accommodating an object to be contained; and partially removing the base sheet or the release sheet along the cut.

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