JP2012139939A - Laminate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laminate that protects a basically planar specimen such as a paper sample and a picture more inexpensively and easily than the prior technology while allowing viewing and browsing of the planar specimen.SOLUTION: The laminate 10 includes a first sheet 102 having flexibility, a release sheet 104, and a second sheet 106 having flexibility, in this order. Surfaces of the first sheet 102 and the second sheet 106 on the sides in contact with the release sheet 104 are coated substantially entirely with adhesive agents 1021, 1061, respectively. Further, at least one of the first sheet 102 and the second sheet 106 has translucency.

Description

The present invention relates to a laminate.

In the old days, a forehead using a glass plate was used to protect photographs and the like so that they could be observed and viewed. As a result, discoloration due to the influence of sunlight or the like is unavoidable, but it is excellent in storage for a long period of time without physically damaging the surface, and can be observed and browsed when desired. After that, the ease of use increased with the widespread use of albums in which photos were fixed on the adhesive surface and the surface was protected with a transparent film. Furthermore, a method in which a photograph or the like is sandwiched between two laminate films and heat-pressed with a laminator is widely used. Photos protected by this are excellent in waterproofness and have some elasticity, so there is a wide range of methods to carry after laminating flat objects such as your favorite specific photos, membership cards and examination cards. Popular. However, in order to laminate photos, etc., a specific laminate film must be used, a laminator that cannot be said to be inexpensive is necessary, and further, there is a possibility of heat denaturation because it is heated when laminating. There were problems such as being unsuitable for things. Furthermore, since the laminate film is cured during the heating process, the texture is inferior, and there is a possibility of hurting others, which is unsuitable for use in a situation where flexibility is required. In addition, by using a cover film (Nichiban), it is possible to protect both the front and back sides of the photo in a state where it can be viewed without using special equipment, but the cover film is originally a book, magazine, document or pamphlet. It is intended to reinforce and repair, and is not intended to laminate flat objects. It is necessary to cut the front and back sheets to the required sizes, respectively. If the sizes do not exactly match, it is necessary to cut unnecessary portions after the lamination process. In general, wrinkles are likely to occur when a protective film is applied to a plate-like material and when it is cut, so a solution for the problem is also disclosed, but a large-scale mechanical device is required (patent) Reference 1). On the other hand, the invention regarding the surface protection film laminated body which can perform a sticking operation | work more easily is disclosed. The present invention is a surface protective film laminate including a plurality of film bodies, and the plurality of film bodies have substantially the same plane shape and are laminated so as to be peeled from each other. Further, in a film body having an adhesive surface on one surface and a non-adhesive surface on the other surface and adjacent in the laminating direction, the adhesive surface of the other film body is opposite to the non-adhesive surface of one film body. It is adhered so as to be peelable (Patent Document 2). Since the film bodies have substantially the same plane shape, it becomes possible to match the front and back sheets. However, it is a surface protective film for the purpose of preventing adhesion of scratches and dirt, and is not intended for laminating a planar object. There is a limit to the accuracy of the bonding operation, and it is necessary to cut unnecessary portions after laminating.

JP 2006-21444 A Registered Utility Model No. 3134213

Therefore, an object of the present invention is to provide a laminate that protects a substantially flat paper sample or a specimen such as a photograph in a state where it can be observed and browsed easily and without the need for a separate device, etc. That is.

The invention according to claim 1 is a laminate including a flexible first sheet, a release sheet, and a flexible second sheet in this order, and the first sheet and the The surface of the second sheet on the side in contact with the release sheet is coated with an adhesive over substantially the entire surface, and at least one of the first sheet and the second sheet has translucency. It is a laminated body. The invention according to claim 2 is the laminate according to claim 1, wherein the release sheet is provided with a cut and can be divided into a plurality of parts. Invention of Claim 3 is a laminated body of Claim 1 or 2 whose said adhesive is a pressure sensitive adhesive. Invention of Claim 4 is a laminated body in any one of Claims 1-3 by which an auxiliary line is printed on the said 1st sheet | seat, a peeling sheet, or a 2nd sheet | seat. The invention according to claim 5 is characterized in that the first sheet and the second sheet are formed by bending one continuous sheet, and the laminate according to any one of claims 1 to 4 It is. The invention according to claim 6 is the laminate according to claim 5, wherein a portion where the adhesive is not applied exists inside the bent portions of the first sheet and the second sheet. is there. The invention according to claim 7 is the laminate according to any one of claims 1 to 6, wherein the release sheet has a hole. The invention according to claim 8 is the laminate according to any one of claims 1 to 7, wherein the release sheet and the pressure-sensitive adhesive are stored in an airtight manner by the first sheet and the second sheet. It is.

ADVANTAGE OF THE INVENTION According to this invention, the laminated body which protects in the state which can observe and browse a substantially planar sample, a photograph, etc. more cheaply and easily than the prior art can be provided.

It is a perspective view of one embodiment of a layered product of the present invention. It is a figure for demonstrating the usage method of the laminated body of this invention. It is a figure for demonstrating the usage method of the laminated body of this invention. It is a figure for demonstrating the usage method of the laminated body of this invention. It is a figure for demonstrating the usage method of the laminated body of this invention. It is a figure for demonstrating the usage method of the laminated body of this invention. It is a perspective view explaining the form which printed the auxiliary line on the peeling sheet. It is a perspective view for demonstrating the form by which a 1st sheet and a 2nd sheet | seat are comprised by bending one continuous sheet | seat. It is a perspective view for demonstrating the form by which a 1st sheet and a 2nd sheet | seat are comprised by bending one continuous sheet | seat. It is a perspective view for demonstrating the peeling sheet which has a hole part. It is a perspective view for demonstrating another form of the laminated body of this invention. It is a perspective view of the laminated body of this invention for demonstrating the form by which the cut is provided in the peeling sheet. It is a figure for demonstrating the usage method of the laminated body of this invention in case a slit is provided in a peeling sheet and it can divide | segment into several parts. It is a figure for demonstrating the usage method of the laminated body of this invention in case a slit is provided in a peeling sheet and it can divide | segment into several parts. It is a figure for demonstrating the usage method of the laminated body of this invention in case a slit is provided in a peeling sheet and it can divide | segment into several parts. It is a figure for demonstrating the usage method of the laminated body of this invention in case a slit is provided in a peeling sheet and it can divide | segment into several parts. It is a figure for demonstrating the usage method of the laminated body of this invention in case a slit is provided in a peeling sheet and it can divide | segment into several parts. It is a figure for demonstrating the usage method of the laminated body of this invention in case a slit is provided in a peeling sheet and it can divide | segment into several parts. It is a figure for demonstrating the usage method of the laminated body of this invention in case a slit is provided in a peeling sheet and it can divide | segment into several parts. It is a figure for demonstrating the usage method of the laminated body of this invention in case a slit is provided in a peeling sheet and it can divide | segment into several parts.

Hereinafter, the present invention will be described in more detail with reference to the drawings. In the following drawings, the thicknesses of the first and second sheets, the release sheet, and the pressure-sensitive adhesive are shown to be thicker than the actual thickness for the purpose of explanation. FIG. 1 is a perspective view of an embodiment of the laminate of the present invention. The laminate 10 of the present invention includes a flexible first sheet 102, a release sheet 104, and a flexible second sheet 106 in this order, and the first sheet 102 and the second sheet 106. The pressure-sensitive adhesive 1021 and the pressure-sensitive adhesive 1061 are applied over substantially the entire surface on the side in contact with the release sheet 104. Further, at least one of the first sheet 102 and the second sheet has translucency.

Examples of the flexible first sheet 102 and the second sheet 106 include a plastic film having flexibility. Examples of such a film include polyethylene terephthalate (PET) and polyethylene naphthalate (PEN). Polyester resin, diacetate resin, triacetate resin, acrylic resin, polycarbonate resin, triacetyl cellulose, polystyrene, polyolefin, polyurethane resin, polyvinyl chloride, polyimide resin, polyamide resin, etc. A layer or a composite film. In addition, one or both of the first sheet 102 and the second sheet 106 needs to be translucent. Here, translucency means that the visible light transmittance is 50% or more, preferably 70% or more, and more preferably 90% or more.

As the release sheet 104, a conventionally known one can be used. For example, the surface of a film made of a resin such as polyethylene terephthalate, polypropylene, or polyethylene is subjected to a release treatment with a release agent such as silicone or fluorine. , Glassine paper, clay coated paper, and the like, which have been subjected to a release treatment with the above release agent. The thickness of the release sheet is usually about 10 to 500 μm.

As the adhesives 1021 and 1061, conventionally known ones can be used, for example, acrylic adhesives, rubber adhesives, silicone adhesives, urethane adhesives, polyester adhesives, styrene-diene blocks. Examples thereof include copolymer-based pressure-sensitive adhesives, vinyl alkyl ether-based pressure-sensitive adhesives, polyamide-based pressure-sensitive adhesives, and fluorine-based pressure-sensitive adhesives. Among these, a pressure sensitive adhesive is preferable.

Next, the usage method of the laminated body 10 of this invention is demonstrated. The laminated body 10 of the present invention can be suitably used for protecting a specimen such as a substantially flat paper sample or a photograph in a state where it can be observed and viewed. 2-6 is a figure for demonstrating the usage method of the laminated body 10 of this invention. The method of use includes, for example, the following series of steps. First step: The user first separates the first sheet 102 from the second sheet 106. At this time, the release sheet 104 is left on the second sheet 106 side (FIG. 2). Second step: After separating the first sheet 102 in the first step, the specimen 202 is placed at a desired position on the release sheet 104 (FIG. 3). Third step: The separated first sheet 102 is placed on the specimen 202 and adhered. At this stage, the first sheet 102 and the specimen 202 are adhered and fixed (FIG. 4). Fourth step: The specimen 202 fixed to the adhesive 1021 applied to the first sheet 102 is separated from the second sheet 106, and the release sheet 104 is removed from the second sheet 106 (FIG. 5). Fifth step: By superimposing the specimen 202 fixed on the adhesive surface of the first sheet 102 with the adhesive surface of the second sheet 106, the first sheet 102 and the specimen 202 can be observed and browsed. Second sheet 1
It becomes a state protected by 06 (FIG. 6).

In the first step, before use of the laminate of the present invention, the shape of the release sheet 104 is the same as that of the first sheet 102 and the second sheet 106, as shown in FIG. Part of the first sheet 102 and the second sheet 106 comes to adhere to each other. In this case, the second and subsequent steps are performed in a state where the adhesive portion is fixed, and there is an advantage that a shift is less likely to occur when overlapping is performed in the fifth step. In the second step, the fixing position of the specimen 202 on the release sheet 104 can be adjusted. If the release sheet 104 does not exist, when the specimen 202 is installed, it is immediately fixed by the adhesive surface of the second sheet 106, and fine adjustment of the fixing position of the specimen 202 becomes impossible. Further, when a pressure sensitive adhesive is used as the adhesive in the third step, it is preferable that the position where the specimen 202 is placed can be finely adjusted because the adhesiveness does not appear before the pressure is applied.

Moreover, in this invention, it is preferable that an auxiliary line is printed on a 1st sheet | seat, a peeling sheet, or a 2nd sheet | seat. FIG. 7 is a diagram illustrating a form in which auxiliary lines are printed on the release sheet 104. In this embodiment, in the second step, the specimen 202 can be installed along the auxiliary lines 302 formed in a grid pattern, so that the fine adjustment of the fixing position of the specimen 202 can be more reliably performed. In addition, the oblique line on the peeling sheet 104 in the figure is for visually clearly showing the distinction between the first sheet, the second sheet, and the pressure-sensitive adhesive, and means that there is a diagonal line on the peeling sheet. It is not a thing.

According to another aspect of the present invention, the first sheet and the second sheet are formed by bending a continuous sheet. FIG. 8 is a perspective view for explaining this embodiment. The first sheet 102 and the second sheet 106 are formed by bending the sheet S with reference to the center line C of the central portion in the length direction of the single sheet S of the rectangle. An adhesive 1021 and an adhesive 1061 are applied to the first sheet 102 and the second sheet 106, respectively, when the laminate is formed on both sides of the sheet S with the center line C therebetween. FIG. 9 shows a process of bending the sheet S. Although it is bent on the basis of the center line C so that the adhesive surfaces on the sheet S are overlapped, it is necessary to overlap the two after placing the release sheet 104 so that the adhesive surfaces do not contact each other. According to this aspect, in the fifth step, a shift is less likely to occur when the adhesive surface of the first sheet 102 to which the specimen 202 is fixed and the adhesive surface of the second sheet 106 are overlapped. As shown in FIG. 9, except that the first sheet 102 and the second sheet 106 are continuous, the first sheet 102, the adhesive 1021, the release sheet 104, the adhesive 1061, It is a laminated body provided with the first sheet 106 in this order. In addition, although an actual crease exists as an acute angle, it is illustrated in a rounded shape for convenience.

In addition, it is preferable not to apply an adhesive to the hatched portion i around the center line C in FIG. The hatched portion i is inside the bent portion of the first sheet 102 and the second sheet 106, and when the adhesive is applied to this portion, the size of the specimen 202 is large enough to reach the center line C. Alternatively, when the specimen 202 is to be placed in a location in contact with the center line C, the specimen 202 is fixed before reaching the center line C by the adhesive of the hatched portion i bent at an acute angle inside, causing a problem. To do.

Moreover, according to another form of this invention, it is preferable that a peeling sheet has a hole. FIG. 10 is a plan view for explaining a release sheet having a hole. According to the form of FIG. 10, small holes 502 are provided at a plurality of locations on the release sheet 104. According to this form, for example, when the specimen 202 is bent or full of wrinkles, the specimen 202 is temporarily fixed to the adhesive surface of the second sheet 106 through the hole 502 of the release sheet 104 in the second step. The specimen 202 is temporarily fixed on the release sheet 104 in a stretched state without bending or wrinkles. In addition, when the specimen 202 is adhered and fixed by the first sheet 102 in the third step, the specimen 202 is fixed in this state. Since the specimen 202 is only temporarily fixed to the adhesive surface of the second sheet 106 through the hole 502, it can be easily separated from the adhesive surface of the second sheet 106 in the fourth step. In this embodiment, the total area of the holes 502 preferably occupies 12 to 27% of the release sheet 104. Further, as shown in FIG. 10A, it is preferable that the hole portion 502 provided along the diagonal lines M and M ′ of the release sheet 104 has a larger hole area than the other hole portions. The reason is that when a specimen with many wrinkles is stretched and temporarily fixed on a release sheet, the specimen is pulled from the surrounding rather than being concentrically fixed from one point on the specimen, and the tensioned state is maintained. However, the sample is less distorted when temporarily fixed. Assuming that many of the specimens are generally rectangular, it is most effective to pull in the diagonal direction in order to extend the specimen's wrinkles uniformly. Pulling the two diagonal lines on the specimen sequentially from both ends, while maintaining the tensioned state, preferentially strongly fix the area near the diagonal line to reduce distortion and temporarily fix the rest of the part other than the diagonal line It is sufficient to perform it lightly. Therefore, the area of the hole other than the diagonal line may be small. Furthermore, in FIG.10 (b), the hole 502 provided along the centerline M and M 'of the peeling sheet 104 showed the shape which enlarged the hole area rather than the other hole. This shape is preferable for temporary fixation when the center line of the specimen is clear. When the center line of a specimen with many wrinkles and a bad condition is stretched and temporarily fixed on the release sheet, the center line of the specimen is fixed by temporarily fixing the center line of the stretched specimen on the center line of the release sheet. It is fixed on the release sheet center line. After that, the specimen located on the other center line on the release sheet is pulled from both sides, and temporarily fixed on the release sheet while maintaining the pulled state. It is sufficient that the sample is temporarily fixed on the two center lines and the remaining portions are temporarily fixed lightly. Therefore, the area of the hole other than the center line may be small. 10 (a) and 10 (b), the hole 502 provided along the diagonal line and the center line of the release sheet 104 has a shape in which the hole area is larger than the other holes. The location where the partial area is increased is not limited to the diagonal line and the center line. Various patterns are conceivable depending on the shape of the specimen, but in any case, it is important to provide sharpness with other parts because the areas with relatively large hole areas on the release sheet are distributed on the line. . Specimens with many wrinkles are in a state where the hole area is relatively large, and the specimen is peeled off because the other hole areas are relatively small and the specimen is not temporarily fixed more strongly than necessary. It is possible to minimize the burden on the specimen when it is separated from the sheet.

Moreover, in another form of this invention, it is preferable that the adhesive 1021, the adhesive 1061, and the peeling sheet 104 are airtightly accommodated by the first sheet 102 and the second sheet 106. When an adhesive that may lose its adhesiveness in a dry state is employed, the first sheet 102 and the second sheet 102 are temporarily bonded by temporarily bonding the periphery of the first sheet 102 and the second sheet 106 with an easy adhesive or the like. The inside of the storage unit constituted by the sheet 106 is in an airtight state, and drying of the pressure-sensitive adhesive can be prevented.

FIG. 11 is a perspective view for explaining still another embodiment of the laminate of the present invention. In FIG. 11A, the laminate 60 of the present invention is formed in a long shape and is wound around a core portion 601 to form a wound body 602. FIG. 11B is a perspective view of a form in which the first sheet 102 is separated from the release sheet 104 in the laminated body of the present invention in which a part is unwound from the wound body 602. The laminate 60 of the present invention is preferably provided with a cut in the release sheet 104 so that it can be divided into a plurality of portions.

FIG. 12 is a perspective view of the laminate of the present invention for explaining a form in which the release sheet 104 is provided with cuts. As shown in FIG. 12, in the laminate 60 of the present invention, a plurality of cuts d are provided in a direction perpendicular to the length direction of the release sheet 104.

Hereinafter, the usage method of the laminated body of this invention in case a cut | interruption is provided in the peeling sheet 104 and it can divide | segment into several parts is demonstrated. In addition, the following usage method is based on the operation | work of the 1st process-the 5th process of the usage method of the laminated body of this invention demonstrated above.

First, as shown in FIG. 13, the first sheet 102 and the adhesive 1021 that forms the adhesive surface thereof are separated from the release sheet 104. Next, as shown in FIG. 14, the specimen 202 is placed at a desired location on the release sheet 104. Subsequently, as shown in FIG. 15, the separated first sheet 102 is placed on the specimen 202 and adhered. At this stage, the first sheet 102 and the specimen 202 adhere and become fixed. Next, as shown in FIG. 16, the specimen 202 fixed to the adhesive 1021 provided on the first sheet 102 is attached to the first sheet 102. The two sheets 106 are separated. Subsequently, as shown in FIG. 17, the release sheet 104 is removed for each break. In addition, when the release sheet 104 is not provided with a cut, the release sheet 104 is connected to the wound body, and thus cannot be removed at this stage. Next, as shown in FIG. 18, the specimen 202 fixed to the adhesive surface of the first sheet 102 is overlapped with the adhesive surface of the second sheet 106. Then, as shown in FIG. 19, the long laminated body 60 is cut in a desired location. Finally, as shown in FIG. 20, the release sheet 104 remaining in the vicinity of the cut portion is removed, for example, by lifting the first sheet 102 upward and exposing it.

According to the above configuration, since the laminate is used as a roll, it is suitable for carrying and storage, and the direction of separation and re-adhesion of the first sheet 102 is the unwinding direction of the laminate from the roll. Therefore, the first sheet 102 and the specimen 202 are preferably adhered and fixed to the second sheet 106 without being deviated from each other.

10 Laminate 102 First Sheet 1021 Adhesive (Applied to First Sheet) 104 Release Sheet 106 Second Sheet 1061 Adhesive (Applied to Second Sheet) 202 Specimen

Claims (8)

A laminated body including a flexible first sheet, a release sheet, and a flexible second sheet in this order, and is in contact with the release sheet of the first sheet and the second sheet. A laminate in which a pressure-sensitive adhesive is coated on substantially the entire surface, and at least one of the first sheet and the second sheet has translucency. The laminate according to claim 1, wherein the release sheet is provided with a cut and can be divided into a plurality of portions. The laminate according to claim 1 or 2, wherein the pressure-sensitive adhesive is a pressure-sensitive pressure-sensitive adhesive. The laminated body according to any one of claims 1 to 3, wherein auxiliary lines are printed on the first sheet, the release sheet, or the second sheet. The laminate according to any one of claims 1 to 4, wherein the first sheet and the second sheet are formed by bending a continuous sheet. The laminate according to claim 5, wherein a portion where the adhesive is not applied exists inside the bent portions of the first sheet and the second sheet. The laminate according to any one of claims 1 to 6, wherein the release sheet has a hole. The laminate according to any one of claims 1 to 7, wherein the release sheet and the pressure-sensitive adhesive are stored in an airtight manner by the first sheet and the second sheet.

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