Laminated sheet for thermal transfer printer and method for manufacturing skin design sheet

Abstract

To manufacture a skin design sheet by on-demand printing a design desired by a user.SOLUTION: A laminated sheet comprises: a strip-shaped release sheet; a first adhesive layer which is provided on the release sheet; and a stretchable sheet which is provided on the adhesive layer. The bending resistance of the release sheet is between 150 mg and 2500 mg. The release sheet includes paper and the thickness thereof may be between 130 μm and 210 μm. A plurality of recesses are formed on a surface on the side where the first adhesive layer of the release sheet is provided, and the depth of the recess may be between 1 μm and 17 μm.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a laminate sheet and a method for manufacturing a skin design sheet. [Background technology]

[0002] Skin design sheets, such as tattoo stickers and skin concealing sheets, are known for use by sticking them to the skin. Tattoo stickers, printed with various designs, are sold at variety stores, sporting and music event venues, amusement parks, etc., and are used to liven up the atmosphere.

[0003] The skin concealing sheet is a sheet in which a base material is colored in advance with a predetermined color by screen printing or the like, and is used to conceal discoloration such as skin scratches and blemishes. The user selects and uses the sheet that matches the color of their skin. For example, the skin concealing sheet is a sheet in which a release sheet, an adhesive layer, an elastic base material, and a cover sheet are laminated in this order, and the sheet is attached to the user's skin by peeling off the release sheet, attaching the adhesive layer to the skin, and then peeling off the cover sheet.

[0004] Users can select a skin concealing sheet that is close to their own skin color from the multiple colors available on the market, but the colors of skin concealing sheets on the market are limited, and users may be concerned about the color difference between the skin concealing sheet and their skin, which can leave them dissatisfied.

[0005] It is conceivable to produce a skin concealing sheet by on-demand printing in a color that matches the skin tone of the user. For printing, a dye-sublimation type thermal transfer printer, which has excellent color reproducibility and gradation, is suitable. However, conventional thermal transfer printers form images on a transfer target using a highly rigid base material such as PET (polyethylene terephthalate) or PP (polypropylene), and are not designed to form images on a stretchable material such as a skin concealing sheet. For this reason, on-demand printing of a skin concealing sheet using a thermal transfer printer has been difficult. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2009-100851 A Summary of the Invention [Problem to be solved by the invention]

[0007] An objective of the present disclosure is to provide a laminated sheet used to manufacture a skin design sheet on which a design desired by a user is printed on demand, and a method for manufacturing the skin design sheet. [Means for solving the problem]

[0008] The laminated sheet of the present disclosure comprises a strip-shaped release sheet, a first adhesive layer provided on the release sheet, and an elastic sheet provided on the first adhesive layer, and is characterized in that the bending resistance of the release sheet is 150 mg or more and 2500 mg or less.

[0009] The skin design sheet manufacturing method disclosed herein comprises the steps of peeling off a protective film at one longitudinal end of a laminated sheet to expose the surface of an elastic sheet, forming an image on the elastic sheet using a thermal transfer printer, transferring a protective layer onto the image to produce a skin design sheet including a first adhesive layer, the elastic sheet and the protective layer, and cutting out an area including the skin design sheet from the laminated sheet. Effect of the Invention

[0010] According to the present disclosure, a skin design sheet can be produced by printing on demand the design desired by the user. [Brief description of the drawings]

[0011] [Figure 1] 1a and 1b are cross-sectional views of a laminated sheet. [Diagram 2] FIG. 2a is a cross-sectional view of the laminated sheet, and FIG. 2b is a plan view of the laminated sheet. [Diagram 3]FIG. 3a is a cross-sectional view of the laminated sheet, and FIG. 3b is a plan view of the laminated sheet. [Figure 4] FIG. [Diagram 5] FIG. 1 is a schematic configuration diagram of a skin design sheet manufacturing system according to an embodiment of the present disclosure. [Figure 6] FIG. 2 is a functional block diagram of an arithmetic and control device. [Figure 7] FIG. 7a shows a captured image, and FIG. 7b shows a simulated image. [Figure 8] FIG. 1 is a schematic diagram illustrating a printer. [Figure 9] FIG. [Figure 10] 10a to 10c are diagrams illustrating a process for removing the protective film. [Figure 11] FIG. 11a is a cross-sectional view of the laminated sheet, and FIG. 11b is a plan view of the laminated sheet. [Figure 12] FIG. 12a is a cross-sectional view of the laminated sheet, and FIG. 12b is a plan view of the laminated sheet. [Figure 13] FIG. 13a is a cross-sectional view of the cover sheet, and FIG. 13b is a perspective view of the cover sheet. [Figure 14] FIG. 14a is a cross-sectional view of the laminated sheet, and FIG. 14b is a plan view of the laminated sheet. [Figure 15] FIG. 13 is a diagram showing an example of use of the skin design sheet. [Figure 16] FIG. 13 is a diagram showing an example of use of the skin design sheet. [Figure 17] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] 1a is a cross-sectional view of a laminated sheet 20 used in the manufacture of a skin design sheet according to an embodiment of the present disclosure. The laminated sheet 20 is a long strip, and has a release sheet 21, an adhesive layer 22 (first adhesive layer), and an elastic sheet 23 laminated in this order.

[0013] Release sheet Release paper that has been subjected to a silicone release treatment or the like can be used as the release sheet 21. The thickness of the release sheet is preferably about 130 μm or more and 210 μm or less.

[0014] The bending resistance of the release sheet is preferably 150 mg to 2500 mg, more preferably 280 mg to 2100 mg. By setting the bending resistance to 150 mg or more, the occurrence of jams during image formation processing in the printer 4 described below can be suppressed. By setting the bending resistance to 2500 mg or less, the release sheet can be easily cut using a cutter 38 (see FIG. 8) of the printer 4 described below.

[0015] The surface of the release sheet (the surface on which the adhesive layer is provided) preferably has a plurality of recesses (dimples). The planar shape of the recesses is substantially circular with a diameter of about 2 mm to 3 mm. The recesses occupy about 3% to 20% of the surface of the release sheet. The bottoms of the recesses are curved, and the depth of the deepest part is about 1 μm to 17 μm. By forming such recesses on the surface of the release sheet, the peel force between the release sheet and the adhesive layer can be made to an appropriate value. Furthermore, in the image formation process on the laminated sheet using a printer described later, an appropriate printing pressure can be applied, and the occurrence of orange peel can be suppressed.

[0016] adhesive layer For the adhesive layer 22, it is preferable to use a urethane-based or acrylic-based adhesive that is unlikely to cause rashes or inflammation on the skin. In addition, it is preferable to use a gel-type adhesive to ensure adhesion to the skin. The thickness of the adhesive layer is, for example, 15 μm or more and 25 μm or less.

[0017] Elastic Sheet The stretchable sheet 23 may be, for example, a urethane sheet. The stretchable sheet preferably has a stretchability of about 60% so as to follow the stretching of the skin when attached. In addition, the stretchable sheet may have a stretchability of 1000 g / (m 2 It is preferable that the material has a moisture permeability of at least 24 hours.

[0018] In order to prevent wrinkles from forming during application and to improve workability, the thickness of the stretchable sheet is preferably 5 μm or more, and more preferably 10 μm or more, and in order to prevent discomfort during application, the thickness of the stretchable sheet is preferably 35 μm or less.

[0019] In order to facilitate handling of the laminated sheet 20 in which the release sheet 21, the adhesive layer 22, and the elastic sheet 23 are laminated in this order, as shown in Fig. 1b, a processing film 40 may be provided on the elastic sheet 23. For the processing film 40, an LDPE film or the like having a thickness of about 30 µm to 60 µm can be used.

[0020] As shown in Figures 2a and 2b, the adhesive layer 22 and the stretchable sheet 23 of the laminated sheet 20 are processed into a shape of the product form of the skin design sheet using a known cutting device. Figure 2a is a cross-sectional view of line IIa-IIa in Figure 2b. For example, as shown in Figures 2a and 2b, the adhesive layer 22 and the stretchable sheet 23 are processed into a circular shape in a plan view. The circular adhesive layer 22 and the stretchable sheet 23 are formed at a predetermined interval in the longitudinal direction. The circular adhesive layer 22 and the stretchable sheet 23 arranged in the longitudinal direction may be in one row or multiple rows. Figures 2a and 2b show an example of two rows.

[0021] When the process film 40 is provided, it is peeled off from the stretchable sheet 23 when the laminated sheet 20 is set in the cutting device.

[0022] After the adhesive layer 22 and the stretchable sheet 23 are processed into a product form, a long strip-shaped protective film 24 is attached onto the laminated sheet 20 as shown in Figures 3a and 3b. The protective film 24 has a weak adhesive layer 25 (second adhesive layer) on one side. The weak adhesive layer 25 is provided in a position that does not contact the adhesive layer 22 and the stretchable sheet 23. For example, in the example shown in Figure 3a, three lines of the weak adhesive layer 25 are provided on one side of the protective film 24, and are attached to the surface of the release sheet 21 at three points outside the stretchable sheet 23 (and adhesive layer 22) in the width direction (short direction) and between the stretchable sheets 23, 23.

[0023] An LDPE film or a PP film having a thickness of about 30 μm to 60 μm can be used for the protective film 24. An acrylic or urethane weak adhesive can be used for the weak adhesive layer 25.

[0024] Next, using a known cutting device, a plurality of half cuts 26 extending in the width direction are formed at predetermined intervals in the protective film 24, as shown in Fig. 4. The half cuts 26 are formed at positions between the elastic sheets 23. For example, the half cuts 26 are formed at positions between the elastic sheets 23, 23 adjacent to each other in the longitudinal direction.

[0025] The laminated sheet 20 with the half cut 26 formed in the protective film 24 is wound into a roll to produce a laminated sheet roll, which is set in the printer 4 (see Figs. 5 and 8) described below.

[0026] Fig. 5 is a schematic diagram of a skin design sheet manufacturing system according to an embodiment of the present disclosure. As shown in Fig. 5, the skin design sheet manufacturing system includes a photographing device 1, a computing and controlling device 2, a display device 3, and a printer 4, and produces a skin design sheet 5 that is applied to the skin of a user P to conceal discoloration such as blemishes and scratches.

[0027] The photographing device 1 may be a digital camera or the like, and photographs the user P. In addition to the imaging equipment, the photographing device 1 includes equipment for appropriately photographing the skin color of the user P, such as lighting equipment and background equipment. The photographing device 1 may be something like a photo booth for taking ID photos. In the following embodiment, the photographing device 1 is described as photographing the face of the user P. If the user has applied makeup to their skin beforehand, the skin in the photographed face image refers to the state in which the makeup has been applied to the skin. The photographing device 1 transmits the face image of the user P to the arithmetic and control device 2.

[0028] The arithmetic and control device 2 is, for example, a computer having a CPU, memory, etc., and the CPU executes the skin design sheet manufacturing program stored in the memory to realize the functions of an image receiving unit 201, an analysis unit 202, a skin design sheet data generating unit 203, a simulation image generating unit 205, a display processing unit 206, and a print control unit 207, as shown in Fig. 6. Instead of storing all programs in the CPU or memory for each system, the server and the CPU of each system may be linked via a network to execute the programs, and the server may register and manage data such as user P information, captured images, and output images.

[0029] The image receiving unit 201 receives a face image of the user P from the photographing device 1 .

[0030] The analysis unit 202 analyzes the facial image, identifies discolored areas such as blemishes and scratches, and analyzes the hue of the natural skin (other than the discolored areas) and the hue of the discolored areas.

[0031] The skin design sheet data generating unit 203 generates data (design data) of a skin design sheet suitable for concealing discoloration parts based on the analysis results of the hues of the background and discoloration parts. The data of the skin design sheet includes color information. The color of the skin design sheet may be determined taking into account trends and the age of the user P.

[0032] The simulation image generating unit 205 generates a simulation image of a case where a skin design sheet based on the data of the skin design sheet is attached to the face of the user P. For example, the simulation image is generated by synthesizing an image of the skin design sheet based on the position of the discoloration part with the face image of the user P.

[0033] The display processing unit 206 displays the face image of the user P and the simulation image on the display device 3. For example, the face image of the user P as shown in Fig. 7a and the simulation image as shown in Fig. 7b are displayed on the display device 3. When the user P checks the simulation image in which the discolored part S on the face is concealed, displayed on the display device 3, he / she operates an operation unit (not shown) to instruct the start of production of the skin design sheet.

[0034] The user P may be allowed to adjust the color and density of the skin design sheet by operating the operation unit while checking the simulation image. The adjustment result is reflected in the data of the skin design sheet.

[0035] When the print control unit 207 receives an instruction to start production, it transfers data of the skin design sheet to the printer 4. The printer 4 performs printing processing based on the data of the skin design sheet, and outputs the skin design sheet 5.

[0036] FIG. 8 is a schematic diagram of the printer 4, and FIG. 9 is a plan view of a thermal transfer sheet 10 used in the printer 4. As shown in FIG.

[0037] The thermal transfer sheet 10 is wound around a supply section 33, and is unwound from the supply section 33, passes through a thermal head 31, and is wound up and collected by a collection section .

[0038] The thermal transfer sheet 10 has a transfer-type receiving layer 11, a yellow dye layer 12, a magenta dye layer 13, a cyan dye layer 14, and a protective layer 15 formed in surface order from the recovery section 34 side on one surface of a base sheet (not shown). The receiving layer 11 is a transparent layer that receives the dye transferred from the thermal transfer sheet 10. The yellow dye layer 12, the magenta dye layer 13, and the cyan dye layer 14 contain a binder resin and a sublimation dye. The receiving layer 11, the yellow dye layer 12, the magenta dye layer 13, and the cyan dye layer 14 can be made of known materials.

[0039] A transparent resin material can be used for the protective layer 15. Moreover, the protective layer 15 is preferably a matte layer with low surface reflectance in order to prevent shine when applied to the skin. Here, the term "matte" refers to a state in which the glossiness is 40% or less. The glossiness is a value measured using a gloss meter at an incident angle of 45°.

[0040] The laminated sheet 20 is unwound from a laminated sheet roll 36. The laminated sheet roll 36 is produced by the method described above and is attached to a reel part (not shown). When the reel part is rotated (forward / reverse), the laminated sheet roll 36 rotates and the laminated sheet 20 is unwound or wound. Since the release sheet 21 has a bending resistance of 150 mg or more and the protective film 24 is provided on the elastic sheet 23, the laminated sheet 20 has high rigidity and ensures stable transportability within the printer 4.

[0041] In the printer 4, a rotatable platen roll 32 is provided on the opposite side of the thermal head 31 with the thermal transfer sheet 10 sandwiched therebetween. The thermal head 31 and the platen roll 32 sandwich the laminated sheet 20 and the thermal transfer sheet 10 and heat the thermal transfer sheet 10.

[0042] A conveying guide 35 is provided downstream of the thermal head 31 in the conveying direction of the laminated sheet 20. A cutter 38 is provided downstream of the conveying guide 35 in the conveying direction of the laminated sheet 20 and in the vicinity of an outlet (not shown) of the printer 4.

[0043] To form an image of a desired color on the elastic sheet 23 of the laminated sheet 20, it is necessary to peel off the protective film 24. Therefore, before forming the image, as shown in Fig. 10a, the leading end of the laminated sheet 20 is discharged from the discharge port of the printer 4 to the outside of the printer 4, and in that state, the conveyance of the laminated sheet 20 is temporarily stopped.

[0044] As shown in FIG. 10b, a worker peels off the protective film 24 at the leading end of the laminated sheet 20 and cuts it along the half cut 26.

[0045] The worker peels off the protective film 24 to expose the release sheet 21 and the stretchable sheet 23 at the leading end of the laminate sheet 20, and then operates a button or the like on the printer 4 to give an instruction to start the image forming process. In response to the instruction to start the image forming process, the printer 4 reverses the laminate sheet roll 36 to wind up the laminate sheet 20. As shown in FIG. 10c, the leading end of the laminate sheet 20 is rewound into the printer 4.

[0046] When the elastic sheet 23 with its surface exposed reaches the thermal head 31, the thermal head 31 heats the transfer type receptive layer 11 and transfers the receptive layer 11 onto the elastic sheet 23 of the laminated sheet 20, as shown in Figures 11a and 11b. The receptive layer 11 is transferred to match the shape of the elastic sheet 23.

[0047] Next, the thermal head 31 sequentially heats the yellow dye layer 12, the magenta dye layer 13 and the cyan dye layer 14 based on the data of the skin design sheet, transferring the dyes to the receiving layer 11 on the image receiving sheet 20 to form the skin design sheet image G.

[0048] Next, the protective layer 15 of the thermal transfer sheet 10 is heated, and the protective layer 15 is transferred onto the receiving layer 11 on which the skin design sheet image G is formed, as shown in Figures 12a and 12b. This forms a skin design sheet 5 on the release sheet 21, in which the adhesive layer 22, the stretchable sheet 23, the receiving layer 11 on which the skin design sheet image G is formed, and the protective layer 15 are laminated in this order.

[0049] Then, the cutter 38 cuts the tip of the release sheet 21 in the width direction, cuts out the area where the skin design sheet 5 is provided from the laminated sheet 20, and discharges it from the printer 4. The cutter 38 only needs to cut the release sheet 21 portion, and the blade does not come into contact with the adhesive layer 22, so that deterioration of the cutting performance due to use can be suppressed. In addition, since the bending resistance of the release sheet 21 is 2500 mg or less, it is easy for the cutter 38 to cut the release sheet 21.

[0050] Next, a cover sheet 27 is prepared having a weak adhesive layer 28 (third adhesive layer) on one side, as shown in Figures 13a and 13b. The weak adhesive layer 28 is applied in a strip shape to the center of the cover sheet 27, and its width is approximately the same as or slightly larger than the size (diameter) of the skin design sheet 5. The weak adhesive layer 28 is not provided on the ends of the cover sheet 27.

[0051] As shown in Figs. 14a and 14b, the cover sheet 27 is attached to the upper surface of the skin design sheet 5 (protective layer 15) by contacting the weak adhesive layer 28 therewith.

[0052] When using the skin design sheet 5, the user pinches the end of the cover sheet 27 where the weak adhesive layer 28 is not provided, and peels the skin design sheet 5 together with the cover sheet 27 from the release sheet 21 as shown in Fig. 15. The surface of the release sheet 21 is provided with a recess, and the peeling force between the weak adhesive layer 28 and the protective layer 15 is stronger than the peeling force between the adhesive layer 22 and the release sheet 21, so that the skin design sheet 5 together with the cover sheet 27 can be peeled off from the release sheet 21.

[0053] As shown in FIG. 16, the user aligns the skin design sheet 5 so that it covers the discolored area S of the skin, and attaches the skin design sheet 5 to the skin using the adhesive layer 22. Then, the user peels off the weak adhesive layer 28 and the cover sheet 27 from the skin design sheet 5. The peeling force between the adhesive layer 22 and the skin is stronger than the peeling force between the weak adhesive layer 28 and the protective layer 15. Also, the peeling force between the protective layer 15 and the receiving layer 11 and the peeling force between the receiving layer 11 and the stretchable sheet 23 are stronger than the peeling force between the weak adhesive layer 28 and the protective layer 15. Therefore, the weak adhesive layer 28 and the cover sheet 27 can be peeled off from the skin design sheet 5.

[0054] In this way, according to this embodiment, the skin design sheet 5 is produced on-demand from a captured image of the user P, so that the color of the skin design sheet 5 matches the natural skin color of the user P, thereby reducing the sense of discomfort when the skin design sheet 5 is applied to the skin, resulting in a natural finish.

[0055] Moreover, the laminated sheet 20 can be transported stably within the printer 4, and the occurrence of jams can be suppressed.

[0056] As described above, the leading end of the laminated sheet 20 is temporarily discharged outside the printer 4, and after the protective film 24 is peeled off, the laminated sheet 20 is rewound to the position of the thermal head 31. For this reason, as shown in Fig. 17, it is preferable to provide a rib 35a on the conveying guide 35 so as not to come into contact with the exposed surface of the elastic sheet 23. For example, a plurality of ribs 35a extending along the conveying direction of the laminated sheet 20 are provided.

[0057] When the laminated sheet 20 is rewound to the position of the thermal head 31, the stretchable sheet 23 with its surface exposed passes between the ribs 35a, 35a.

[0058] The transport guide 35 and guide rollers (not shown) in the printer 4 are preferably made of non-adhesive materials.

[0059] When a receiving layer is provided in advance on the laminate sheet 20, there is a risk that the stretchable sheet 23 may be melted and damaged, or denatured or deformed by a solvent during the process of applying and drying a coating liquid for the receiving layer onto the stretchable sheet 23. Therefore, in this embodiment, the receiving layer 11 is transferred from the thermal transfer sheet 10 onto the laminate sheet 20, thereby suppressing deterioration of the properties of the stretchable sheet 23.

[0060] In the above embodiment, the transfer type receiving layer 11 provided on the thermal transfer sheet 10 used in the printer 4 may be a white receiving layer. The white receiving layer is a laminate of a primer layer containing a white pigment such as titanium oxide and a transparent receiving layer. By using the white receiving layer, it is possible to suppress reflected light from the discolored area S, increase the concealment of the discolored area S, and improve the reproducibility of the desired skin color. The transparent receiving layer may contain particles that scatter light.

[0061] In the above embodiment, the part photographed by the photographing device 1 of the skin design sheet manufacturing system may be other than the face.

[0062] In the above embodiment, an example has been described in which the photographing device 1 photographs the user P and generates a facial image. However, the user P may prepare facial image data in advance and store it in a portable terminal such as a smartphone or a portable storage medium such as a USB memory, and input the facial image data to the arithmetic and control device 2. EXAMPLES

[0063] The present disclosure will now be described in more detail with reference to examples, but the present disclosure is not limited to these examples.

[0064] (Preparation of laminated sheets) The following release sheets 1 to 5 were prepared. Release sheet 1: Nitto Denko Corporation, thickness 160μm Release sheet 2: SLB-110WT, manufactured by Sumitomo Kakoshi Co., Ltd., thickness 170 μm Release sheet 3: Nitto Denko Corporation, thickness 160 μm Release sheet 4: Lintec Corporation TL-250S, thickness 376 μm Release sheet 5: Shin-Tac Chemical Co., Ltd., thickness 100 μm

[0065] Using any of the release sheets 1 to 5, an acrylic weak adhesive was applied as an adhesive onto the release sheet to form an adhesive layer with a thickness of 20 μm, and a urethane film (stretchable sheet) was attached onto the adhesive layer to produce laminate sheets of Examples 1 to 5 and Comparative Examples 1 to 3, in which the release sheet, adhesive layer, and stretchable sheet were laminated in that order. The types of release sheets and the thicknesses of the urethane films used in the laminate sheets of Examples 1 to 5 and Comparative Examples 1 to 3 are as shown in Table 1.

[0066] The depth of the recesses formed on the surface of release sheets 1 to 5 was measured using a surface roughness tester (Surfcom 1400G, manufactured by Tokyo Seimitsu Co., Ltd.). Each release sheet was cut to a size of 10 mm x 10 mm, and the surface roughness was measured twice in the TD direction of the release sheet using the surface roughness tester, and the average value of the two measurements was recorded as the measurement result. The measurement results are shown in Table 1.

[0067] The bending resistance of the release sheets 1 to 5 was measured by the method described in JIS L 1085. The measuring machine used was a Gurley flexibility tester manufactured by Toyo Seiki Seisakusho Co., Ltd. The measurement results are shown in Table 1.

[0068] (Production of skin design sheet) The urethane film and adhesive layer of the laminated sheets of Examples 1 to 5 and Comparative Examples 1 to 3 were processed so that the planar shape was a circle with a diameter of 15 mm. The processed laminated sheets were set in a thermal transfer printer (DS620, manufactured by Dai Nippon Printing Co., Ltd.), a receiving layer was transferred onto the circular urethane film, and an image was formed (R, G, B = 127 / 255, 127 / 255, 127 / 255) on the transferred receiving layer to produce a skin design sheet, and the release sheet was cut with the cutter of the thermal transfer printer to cut out the skin design sheet portion.

[0069] <<Transportability evaluation>> The laminate sheet was observed as it was being conveyed through the thermal transfer printer, and the conveyability was evaluated based on the following evaluation criteria. The results are shown in Table 1.

[0070] "Evaluation Criteria" A: No jam occurred B: A jam has occurred.

[0071] <<Cuttability evaluation>> The cut area of ​​the release sheet by the cutter of the thermal transfer printer was observed and the cuttability was evaluated based on the following evaluation criteria. The results are shown in Table 1.

[0072] "Evaluation Criteria" A: The cut was successful. B: There was a part that could not be cut and was connected.

[0073] <<Printability evaluation>> The color of the prepared skin design sheet was observed and evaluated based on the following criteria. The results are shown in Table 1.

[0074] "Evaluation Criteria" A: The color was uniform and even. B: Yuzu skin has developed

[0075] [Table 1] [Explanation of symbols]

[0076] 1. Imaging device 2. Arithmetic and control device 3 Display device 4. Printers 10 Thermal transfer sheet 11 Receptor 15 Protective layer 20 Laminated Sheet 21 Release sheet 22 Adhesive layer 23 Elastic Sheet 24 Protective Film 25 Low adhesive layer 27 Cover Sheet 28 Low adhesive layer 201 Image receiving unit 202 Analysis Department 203 Skin design sheet data generation unit 205 Simulation Image Generation Unit 206 Display processing unit 207 Print control unit

Claims

1. A strip-shaped release sheet; A first adhesive layer provided on the release sheet; an elastic sheet provided on the first adhesive layer; Equipped with The bending resistance of the release sheet is 150 mg or more and 2500 mg or less, A laminated sheet for a thermal transfer printer, characterized in that a plurality of recesses are formed on the surface of the release sheet on which the first adhesive layer is formed, and the depth of the recesses is 1 μm or more and 9 μm or less.

2. 2. The laminate sheet for a thermal transfer printer according to claim 1, wherein the release sheet includes paper and has a thickness of 130 [mu]m or more and 210 [mu]m or less.

3. 3. The laminate sheet for a thermal transfer printer according to claim 1, wherein the thickness of the stretchable sheet is from 10 μm to 35 μm.

4. 4. The laminated sheet for a thermal transfer printer according to claim 1, wherein the first adhesive layer is adapted to be attached to the skin.

5. 5. The laminate sheet for a thermal transfer printer according to claim 1, wherein a plurality of the first adhesive layers are provided at predetermined intervals along the longitudinal direction of the release sheet.

6. The elastic sheet further includes a protective film provided on the release sheet so as to cover the elastic sheet, A laminate sheet for a thermal transfer printer as described in claim 5, characterized in that a second adhesive layer is provided between the protective film and the release sheet, and the second adhesive layer is not provided between the protective film and the elastic sheet.

7. A process for preparing a laminated sheet having a strip-shaped release sheet, a first adhesive layer provided on the release sheet, a stretchable sheet provided on the first adhesive layer, and a protective film provided on the release sheet so as to cover the stretchable sheet, wherein the stiffness of the release sheet is 150 mg or more and 2500 mg or less, a plurality of the first adhesive layers are provided at predetermined intervals along the longitudinal direction of the release sheet, a second adhesive layer is provided between the protective film and the release sheet, and the second adhesive layer is not provided between the protective film and the stretchable sheet; peeling off the protective film at one end of the laminated sheet in the longitudinal direction to expose a surface of the stretchable sheet; forming an image on the stretchable sheet using a thermal transfer printer; A step of transferring a protective layer onto the image to prepare a skin design sheet including the first adhesive layer, the stretchable sheet, and the protective layer; A step of cutting out an area including the skin design sheet from the laminated sheet; A method for producing a skin design sheet comprising the steps of:

Images