JP4216106B2 - Perspective sheet and manufacturing method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fluoroscopic sheet in which a plurality of small holes are perforated. This fluoroscopic sheet is suitably used as a so-called see-through film that is affixed to a window glass of a car, a store, etc. so that a pattern such as a picture or character can be observed from the outside and the outside can be observed from the inside.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is a so-called see-through film that is attached to a window glass of a car, a store, etc., and a pattern such as a picture or a letter can be observed from the outside of the car, the store, etc., and the outside can be observed from the inside.
[0003]
As a method for producing a see-through sheet applicable to this see-through film, (1) an adhesive material layer is formed on the black sheet side of a base sheet formed by laminating a white sheet and a black sheet, and (2) a plurality of sheets are formed. There is a type of manufacturing a fluoroscopic sheet by forming a small hole to form a transparent sheet original fabric and printing a pattern with an inkjet printer or the like on the white sheet side of the transparent sheet original fabric (for example, Patent Documents) 1).
[0004]
As another method for producing a fluoroscopic sheet, (1) a pattern layer is formed on one surface of a wrapping paper (roll-shaped) transparent substrate, and (2) a white layer is printed on the pattern layer. (3) Form a black layer by printing on the white layer, (4) Form a small hole by punching, (5) Form an adhesive layer on the other side of the transparent equipment, (6) Adhesive There are some which manufacture a fluoroscopic sheet by sticking a release sheet on the surface of the layer and cutting it into (7) sheets.
[Patent Document 1]
JP-A-9-226032 (Example)
[0005]
[Problems to be solved by the invention]
However, the fluoroscopic sheet manufactured by the former manufacturing method is externally attached (that is, there is an adhesive layer on the dark color layer side), for example, when the fluoroscopic sheet is attached to a window glass on a high floor of a building. Needs to be affixed using a crane or the like lowered from the roof, and the affixing work becomes very complicated. In addition, since the attached fluoroscopic sheet is exposed to the outside, the surface becomes dirty and the visibility of the pattern is likely to deteriorate, and dust accumulates in the small holes and the transparency from the inside tends to decrease. Further, when the fluoroscopic sheet becomes dirty as described above, it is necessary to clean it using a crane or the like as in the pasting operation, and the maintenance operation becomes complicated.
[0006]
In addition, the latter method for producing a fluoroscopic sheet produces a fluoroscopic sheet by printing a pattern layer on a wrapping paper-like sheet. Therefore, a large number of fluoroscopic sheets having the same pattern are manufactured, which is not suitable for the production of a small lot.
[0007]
The present invention has been made in view of such problems, and the problems are as follows. 1) A method for manufacturing a fluoroscopic sheet, which can easily manufacture a fluoroscopy sheet that can be applied to a small lot. 2) To provide a light-shielding sheet that can be attached internally and is excellent in performance such as transparency.
[0008]
[Means for Solving the Problems]
  In order to solve the above problems, the method for producing a fluoroscopic sheet of the present invention includes:A plurality of small holes are formed by punching a tensioned wrapping paper-like transparent substrate.A substrate forming process;A sheet transparent substrate forming step of cutting the wrapping transparent substrate formed with the plurality of small holes into sheets to form a sheet transparent substrate;A pattern layer forming step of forming a pattern layer having a predetermined pattern on one surface of the transparent substrate of the sheet by printing; and a bright color exhibiting a light color on the pattern layer side of the transparent substrate of the sheet A light color layer forming step of forming a layer by printing, and a dark color layer forming step of forming a dark color layer exhibiting a dark color on the surface of the transparent substrate of the sheet on the light color layer side by printing.
[0009]
According to this, since the pattern layer that presents an arbitrary pattern is formed on a single transparent substrate by printing, it is possible to easily form a pattern layer that exhibits a different pattern for each single transparent substrate. The fluoroscopic sheet can be easily manufactured. In addition, the manufactured fluoroscopic sheet can be used as an internal-ply-type fluoroscopic sheet by sticking the other surface of the transparent substrate (the surface on which the pattern layer is not formed) to the inner surface of the window glass of a car or a store. It can be easily attached to a high-rise window glass, and maintenance is easy. Furthermore, since a fluoroscopic sheet is produced by printing the pattern layer, the light color layer, and the dark color layer in this order, the dark color layer is transparent so as to cover at least a part near the dark color layer of the light color layer forming the peripheral surface of the small hole. A sheet can be manufactured, and a fluoroscopic sheet having excellent transparency can be manufactured.
[0011]
  Moreover,Since a long transparent substrate is perforated and then cut into single wafers, the transparent substrate is long when drilling. Therefore, tension can be easily applied, and there is little occurrence of defects such as burrs. Small holes can be formed, and as a result, the appearance and transparency of the produced fluoroscopic sheet are improved.
[0012]
In addition, the method for producing a fluoroscopic sheet of the present invention includes a substrate forming step of forming a single wafer transparent substrate having a release layer on one surface and a plurality of small holes on the surface; A pattern layer forming step for forming a pattern layer on the other side of the substrate by printing, and a light layer for forming a light layer on the surface of the transparent substrate on the pattern layer side by printing. A layer forming step and a dark color layer forming step of forming a dark color layer exhibiting a dark color on the surface of the transparent substrate on the light color layer side by printing (claim 2).
[0013]
According to this, since the pattern layer that presents an arbitrary pattern is formed on a single transparent substrate by printing, it is possible to easily form a pattern layer that exhibits a different pattern for each single transparent substrate. The fluoroscopic sheet can be easily manufactured. In addition, the manufactured fluoroscopic sheet is easily attached to a window glass of a car or a store by an adhesive layer exposed by peeling off the release sheet. In addition, since the manufactured fluoroscopic sheet is of an internal bonding type, it can be easily applied to a high-rise window glass, and maintenance is easy. Furthermore, since a fluoroscopic sheet is produced by printing the pattern layer, the light color layer, and the dark color layer in this order, the dark color layer is transparent so as to cover at least a part near the dark color layer of the light color layer forming the peripheral surface of the small hole. A sheet can be manufactured, and a fluoroscopic sheet having excellent transparency can be manufactured.
[0014]
  In this fluoroscopy sheet manufacturing method, in the substrate forming step, a plurality of small holes are formed by perforation, and a long transparent substrate having a release sheet on one surface formed on one surface is cut into sheets. Form a transparent substrate of leaves, or in the substrate forming process, cut a long transparent substrate with a plurality of small holes by perforation into single sheets and form an adhesive layer with a release sheet on one surface It is preferable to form a single wafer transparent substrate.
[0015]
According to this, since a long transparent substrate is perforated and then cut into sheets, the transparent substrate is long when perforating, and therefore tension can be easily applied, and defects such as burrs are generated. Therefore, it is possible to form a highly accurate small hole with a small amount, and as a result, the appearance and transparency of the produced fluoroscopic sheet are improved.
[0016]
  Further, in these fluoroscopic sheet manufacturing methods, a silver layer is formed by printing a silver layer exhibiting a silver color on the surface of the transparent substrate of the single wafer between the white layer forming step and the black layer forming step. A formation step may be further included.
[0017]
According to this, it is possible to manufacture a see-through sheet in which the silver layer supplements the concealability of the white layer and the pattern can be observed with high contrast.
[0018]
  Furthermore, in these methods for producing a fluoroscopic sheet, at least in the pattern layer forming step and the bright color layer forming step (and the silver layer forming step), printing may be performed using an ultraviolet curable ink.
[0019]
According to this, since the ultraviolet curable ink is used in the pattern layer forming step and the light color layer forming step (and the silver layer forming step), the light color layer that immediately follows can be cured by irradiating the ink with ultraviolet rays after printing. It can shift to a formation process (a silver layer formation process) and a dark color layer formation process, and can improve production efficiency. In the subsequent bright color layer forming step (and silver layer forming step) and dark color layer forming step, the ink of the pattern layer or the bright color layer (or silver layer) is completely cured, so that the bright color to be printed in layers. It becomes possible to reliably put the ink of the layer (the silver layer) or the dark color layer on a predetermined thickness.
[0020]
  Further, in these methods for producing a fluoroscopic sheet, printing may be performed by an offset printing method in the pattern layer forming step, the light color layer forming step (and the silver layer forming step), and the dark color layer forming step.
[0021]
The offset printing method is easy to produce plates and is inexpensive, so it is an advantageous means for delivery and small lots, and it can be produced with a low loss rate. Even if it exists, it can manufacture efficiently. In addition, offset ink generally has high thixotropy (fluidity due to mechanical impulses), so that when the pattern layer is formed by printing, the pattern ink located in the small holes is not divided and forms a film to cover the small holes. Therefore, it is possible to prevent the transparency of the fluoroscopic sheet from being deteriorated.
[0022]
  Furthermore, in these methods for producing a fluoroscopic sheet, it is preferable that the light color layer is formed by printing a plurality of times in the light color layer forming step.
[0023]
According to this, the light color layer can be formed to a sufficient thickness, the light color layer can be sufficiently concealed, and as a result, a fluoroscopic sheet capable of observing a pattern with high contrast is manufactured. It becomes possible.
[0024]
  In order to solve the above problems, the fluoroscopic sheet of the present invention includes a sheet-like transparent substrate, a pattern layer formed by printing as a layer exhibiting a predetermined pattern on one surface of the transparent substrate, and a pattern layer Printed as a light-colored layer formed by printing as a light-colored layer on the surface opposite to the surface in contact with the transparent substrate, and a dark-colored layer on the surface opposite to the surface in contact with the pattern layer of the light-colored layer And a plurality of small holes formed so as to penetrate at least from the transparent substrate to the dark color layer, and the dark color layer is at least the dark color layer of the light color layer forming the peripheral surface of the small holes It is formed and configured to cover a part of the side.
[0025]
According to this, since the dark color layer is formed so as to cover at least a part near the dark color layer of the light color layer forming the peripheral surface of the small hole, when the fluoroscopic sheet is observed from the dark color layer side, it is almost bright. The color layer is not observed, and as a result, excellent transparency when observing from the dark color layer side of the fluoroscopic sheet can be secured.
[0026]
  The fluoroscopic sheet of the present invention has a sheet-like transparent substrate, a pattern layer formed by printing as a layer that exhibits a predetermined pattern on one surface of the transparent substrate, and a surface of the pattern layer that is in contact with the transparent substrate. A light-colored layer formed by printing as a light-colored layer on the surface side, and a dark-colored layer formed by printing as a dark-colored layer on the surface opposite to the surface contacting the pattern layer of the light-colored layer, An adhesive layer formed on the other surface of the transparent substrate with a release sheet on the surface, and a plurality of small holes formed so as to penetrate at least from the adhesive layer to the dark color layer, and the dark color layer is small It is formed so as to cover at least a part near the dark color layer of the light color layer forming the peripheral surface of the hole.
[0027]
According to this, since the dark color layer is formed so as to cover at least a part near the dark color layer of the light color layer forming the peripheral surface of the small hole, when the fluoroscopic sheet is observed from the dark color layer side, it is almost bright. The color layer is not observed, and as a result, excellent transparency when observing from the dark color layer side of the fluoroscopic sheet can be secured. In addition, this fluoroscopic sheet can be easily affixed to the window glass of a car or a store by the adhesive layer exposed by peeling the release sheet, and moreover, it is easily attached to a high-rise window glass because it is an internal adhesive type. It can be attached to the battery, and maintenance is easy.
[0028]
  Further, these fluoroscopic sheets may further include a silver layer formed by printing as a layer exhibiting a silver color between the light color layer and the dark color layer.
[0029]
According to this, the concealability of the light color layer can be supplemented by the silver layer, and it becomes possible to provide a picture with a higher contrast to the observer.
[0030]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
[0031]
1.First embodiment
1)Configuration of fluoroscopic sheet
FIG. 1 is a cross-sectional view schematically showing a basic configuration of a fluoroscopic sheet according to the first embodiment of the present invention. As shown in FIG. 1, the fluoroscopic sheet 1 according to the first embodiment includes a sheet-like transparent substrate 2, an adhesive layer 3 formed on one surface (the upper surface in FIG. 1) of the transparent substrate 2, and an adhesive layer. 3, a release sheet 4 attached to the surface of the transparent substrate 2, a pattern layer 5 formed on the other surface (the lower surface in FIG. 1), a light color layer 6 laminated on the pattern layer 5, and a lighter layer And a dark color layer 7 laminated on the color layer 6. The fluoroscopic sheet 1 is formed with a plurality of small holes 8 penetrating from the adhesive layer 3 to the dark color layer 7.
[0032]
The transparent substrate 2 is a sheet made of a substantially transparent resin, and a polyester resin sheet such as polyethylene terephthalate or polybutylene terephthalate, a polyolefin resin sheet such as polyethylene or polypropylene, or the like is used. In particular, when a polyethylene terephthalate sheet is used, there is an advantage that the punching property at the time of perforation is good and the generation of burrs is small.
[0033]
The transparent substrate 2 may be colored or semi-transparent as long as it is substantially transparent. However, since the pattern of the pattern layer 5 is observed through the transparent substrate 2 as will be described later, the pattern is clearly observed. For this purpose, the transparent substrate 2 is preferably colorless and transparent. However, it is desirable to provide an ink receiving layer (not shown) on at least the design printing surface of the transparent substrate 2, and in this case, the transparency of the transparent substrate 2 is reduced by the ink receiving layer, but the clarity of the design is improved. In the fluoroscopic sheet 1 of the present invention, a performance that surpasses the demerits due to the decrease in the transparency of the transparent substrate 2 is exhibited. When the ink receiving layer is formed, the pattern layer 5 and the light color layer 6 are firmly fixed, and the ink for forming the dark color layer 7 does not mix with the light color layer 6 and the image layer 5. Therefore, the light color layer 6 and the pattern layer 5 can be prevented from being darkened (dull), and the pattern can be observed more clearly. The ink receiving layer has higher transparency, better adhesion to the transparent substrate 2, excellent ink absorption and drying, clear printed image, no bleeding, ink fixability and water resistance. Those that are good and have good storage stability after printing are appropriately selected.
[0034]
The adhesive layer 3 is formed using a known transparent adhesive material that is substantially transparent. Examples of the adhesive material include rubber resins such as polyisoprene rubber, polyisobutylene rubber, styrene butadiene rubber, butadiene acrylonitrile rubber, (meth) acrylic acid ester resin, polyvinyl ether resin, polyvinyl resin, and polyvinyl acetate resin. It is formed by adding an appropriate tackifier to an arbitrary resin system mainly composed of one or a mixture of two or more kinds of resin, polyvinyl chloride / vinyl acetate copolymer resin, and polyvinyl butyrate resin. Is used. The pressure-sensitive adhesive layer 3 may be colored and transparent as long as it is substantially transparent, but is preferably colorless and transparent for the same reason as the transparent substrate 2.
[0035]
The release sheet 4 is a sheet for protecting the surface of the adhesive layer 3, and a paper sheet, a resin sheet, or the like is used. Examples of the paper sheet include high-quality paper and craft paper. Examples of the resin sheet include polyester resin sheets such as polyethylene terephthalate and polybutylene terephthalate, and polyolefin resin sheets such as polyethylene and polypropylene. Moreover, the sheet | seat which coated by heat-melting or emulsifying the component etc. which were used for the said resin sheet on the paper sheet may be sufficient, and the synthetic resin which has mold release characteristics, such as a silicon | silicone, was apply | coated. It may be a thing. Among these, when a paper sheet is used as the release sheet 4, it is possible to prevent the fluoroscopic sheets 1 from sticking to each other due to static electricity when the multiple fluoroscopic sheets 1 are stacked and stored and transported, and handling is easy. There is an advantage of becoming.
[0036]
The pattern layer 5 constitutes a pattern on the fluoroscopic sheet 1 and is formed by printing as will be described later. As the printing ink constituting the pattern layer 5 (hereinafter referred to as pattern ink), a known binder resin to which a colorant such as a known dye or pigment is added can be used. In particular, when an ultraviolet curable ink (hereinafter referred to as UV ink) is used as the pattern ink, the UV ink can be cured quickly and reliably by irradiating the applied UV ink with ultraviolet rays. When printing the printing ink constituting the light color layer 6 (hereinafter referred to as “light color ink”), the light color ink can be reliably placed on the pattern layer 5. There is an advantage that it can be reliably formed to the required thickness. Further, when the pattern layer 5 is formed by the offset printing method, the offset ink generally has high thixotropy (fluidity due to mechanical impulse), so that the pattern ink positioned in the small hole when forming the pattern layer by printing. Can be prevented from becoming a film without being divided and covering the small holes, thereby reducing the transparency of the fluoroscopic sheet.
[0037]
The light color layer 6 is a light color layer for displaying the pattern of the pattern layer 5 with high contrast. Specifically, the light color layer 6 and the dark color layer 7 are overlapped, and this is separated from the light color layer 6. When viewed, this layer has whiteness enough to shine the pattern layer 5 and has a hiding power that is not affected by the dark color layer 7, and is formed by printing as described later. Here, the bright color refers to a bright color such as white, cream, or light blue. As the light-colored ink constituting the light-colored layer 6, one obtained by adding a light-colored colorant such as a known dye or pigment to a known binder resin can be used. Similarly to the case of the pattern layer 5, when UV ink is used as the light color ink, the applied UV ink is cured by ultraviolet irradiation to form a printing ink that forms the dark color layer 7 on the light color layer 6. (Hereinafter, referred to as dark ink) can be reliably placed, and there is an advantage that the dark color layer 7 can be reliably formed to a required thickness. In addition, when the bright color layer 6 is formed by the offset printing method, the high thixotropy of the offset ink can prevent the bright color ink from forming a film and covering the small holes 8. Same as the case.
[0038]
The dark color layer 7 is a dark color layer for improving the transparency from the dark color layer 7 side of the fluoroscopic sheet 1 and is formed by printing as described later. Here, the dark color refers to a dark color such as black, gray or brown. As the dark color ink constituting the dark color layer 7, one obtained by adding a dark colorant such as a known dye or pigment to a known binder resin can be used. When the dark color layer 7 is formed by the offset printing method, the high thixotropy of the offset ink has the advantage that the dark color ink can be prevented from covering the small holes 8 as a film. Same as the case.
[0039]
The small hole 8 is for ensuring the transparency of the fluoroscopic sheet 1 and is formed so as to penetrate from the adhesive layer 3 to the dark color layer 7 of the fluoroscopic sheet 1. The cut surface of the small hole 8 can be formed in a circular shape, a polygonal shape (including a triangle or a quadrangle), etc. However, particularly when the cut surface is formed in a circular shape, there is no corner portion (vertex portion), and thus a fluoroscopic sheet. 1 is advantageous in that it is difficult to break. It is desirable to form a plurality of small holes 8 having a small area at equal intervals. When the area per small hole 8 is increased, it is difficult to observe a clear pattern when observing the pattern layer 5, and when the small holes 8 are formed to be biased, the observed pattern is not uniform, The transparency of the fluoroscopic sheet 1 is also reduced. Specifically, the area per small hole 8 is 0.5-3 mm.²(When the small holes 8 are circular, the diameter is preferably 0.8 to 2 mm), and the small holes 8 are preferably arranged at polygonal lattice points such as a triangle, a quadrangle, and a hexagon. The area of the small holes 8 with respect to the area of the fluoroscopic sheet 1 is preferably 10 to 50%.
[0040]
FIG. 2 is an enlarged cross-sectional view of the position of the small hole 8 in FIG. As shown in FIG. 2, the dark color layer 7 is formed so as to cover at least part of the light color layer 6 forming the peripheral surface of the small hole 8 near the dark color layer 7. In this way, by covering at least a part of the light color layer 6 forming the peripheral surface of the small hole 8 near the dark color layer 7 with the dark color layer 7, when the fluoroscopic sheet 1 is observed from the dark color layer 7 side (slightly obliquely). The light color layer 6 is hardly observed (even when observing from the side), and as a result, excellent transparency when observing the fluoroscopic sheet 1 from the dark color layer 7 side can be ensured, and the texture is calm and feels good. improves.
[0041]
Similarly, the light color layer 6 is formed so as to cover at least a part near the light color layer 6 of the pattern layer 5 forming the peripheral surface of the small hole 8, and the peripheral surface of the small hole 8 is formed. The pattern layer 5 is formed so as to cover at least a part of the transparent substrate 2 near the pattern layer 5.
[0042]
2)Function of fluoroscopic sheet
Next, the operation of the fluoroscopic sheet 1 configured as described above will be described with reference to FIGS. FIG. 3 shows an example in which the fluoroscopic sheet 1 is used for a window glass of a car, and FIG. 4 shows an example in which the fluoroscopic sheet 1 is used for a window glass of a building.
[0043]
First, the release sheet 4 is peeled off and the fluoroscopic sheet 1 is attached to the window glass using the adhesive force of the adhesive layer 3 that appears. At this time, the fluoroscopic sheet 1 is attached to the window glass so that the pattern layer 5 faces the outside of the car or building so that the pattern of the pattern layer 5 is observed from the outside of the car or building. Therefore, the fluoroscopic sheet 1 is affixed from the inside of a car or a building. In this way, the see-through see-through sheet 1 attached from the inside of the car or building is not exposed to the outside of the car or building, so that dust or the like accumulates in the small holes 8 and the transparency is reduced. It is difficult to happen. Moreover, since the fluoroscopy sheet 1 for internal application is affixed from the inside of a building or the like, it can be easily applied to a window glass on a high layer such as a building.
[0044]
And as above-mentioned, since the fluoroscopy sheet | seat 1 is stuck so that the pattern layer 5 may face the outer side of a car or a building among the pattern layer 5, the light color layer 6, and the dark color layer 7, and the dark color layer 7 may face inside. When the fluoroscopic sheet 1 is observed from the outside of the car or the building, the pattern of the pattern layer 5 is observed through the adhesive layer 3 and the transparent substrate 2 formed substantially transparent, and the fluoroscopic sheet is observed from the inside of the car or the building. When 1 is observed, the dark color layer 7 is observed, and at the same time, the scenery outside the car or the building is observed through the small hole 8. That is, in general (particularly during the daytime), the outside of the car or building is brighter than the inside, so when observing the fluoroscopic sheet 1 from the bright outside, the light transmitted to the outside through the small hole 8 from the dark inside is not. Only the pattern of the pattern layer 5 is observed by the bright light outside, hardly recognized. On the other hand, when the fluoroscopic sheet 1 is observed from the dark inner side, the light transmitted through the small hole 8 from the bright outer side is clearly observed, so that the scenery outside the car or building is observed.
[0045]
Further, as described above, since the dark color layer 7 is formed so as to cover at least a part near the dark color layer 7 of the light color layer 6 forming the peripheral surface of the small hole 8, the fluoroscopic sheet is formed from the inside of the car or the building. When observing 1, the bright color layer 6 is hardly observed from the small hole 8, and excellent transparency is obtained when the fluoroscopic sheet 1 is observed from the inside of the car or the building. That is, when the bright color layer 6 is seen from the small hole 8 when the fluoroscopic sheet 1 is viewed from the dark color layer 7 side, the light transmitted through the small hole 8 and the light reflected by the bright color layer 6 are reflected. The outside scenery is faintly observed by mixing, but when the light color layer 6 cannot be seen from the small hole 8, the light transmitted through the small hole 8 is noticeably observed with respect to the dark color layer 7. Therefore, the outside scenery is clearly observed.
[0046]
3)Production method of fluoroscopic sheet
Next, a method for manufacturing the fluoroscopic sheet 1 will be described with reference to FIGS. FIG. 5 is a flowchart of the manufacturing process of the fluoroscopic sheet 1, and FIG. 6 is a cross-sectional view showing the state of the fluoroscopic sheet 1 in each manufacturing process.
[0047]
First, a long wrapping paper (roll-shaped) transparent substrate 2 is prepared (step S1). Here, the long wrapping paper-like transparent substrate 2 is used because the transparent substrate 2 is punched by punching or the like in the subsequent step S2. At this time, it is necessary to apply a certain amount of tension. This is because the paper-like transparent substrate 2 is advantageous.
[0048]
Next, the long transparent paper substrate 2 is punched to form the small holes 8 (step S2, FIG. 6A). The small holes 8 are punched by punching using a punching press. As described above, punching with a punching press is performed in a state where a certain amount of tension is applied to the transparent substrate 2 as a pressed material in order to reduce the occurrence of defects such as burrs and increase the accuracy of punching. The small holes 8 can be drilled by a punching process because it requires less equipment investment and does not require highly skilled work. However, the present invention is not limited to this, and laser processing, etc. You may carry out with another processing method.
[0049]
Next, an adhesive material is applied to one surface of the transparent substrate 2 to form the adhesive layer 3 (step S3, FIG. 6B). The adhesive material is applied so as not to protrude into the small holes 8 with respect to the transparent substrate 2 after the perforation. And the release sheet 4 is affixed on the surface of the adhesion layer 3 (step S4, FIG.6 (B)).
[0050]
In addition, the thing provided with the transparent substrate 2, the adhesive material layer 3, and the release sheet 4 as described above and having the small holes 8 is hereinafter referred to as a transparent sheet original fabric.
[0051]
Next, the long transparent sheet-shaped web is cut into a sheet-shaped transparent sheet (step S5, FIG. 6C). Cutting into a sheet-like fluoroscopic sheet may be performed using a shearing press, a laser cutting machine, or the like. The sheet-like transparent sheet original is cut in this way when the pattern layer 5 is printed on the long transparent sheet-like original sheet when the pattern layer 5 is subsequently formed. This is because the fluoroscopic sheet 1 with a pattern (pattern layer 5) is manufactured in large quantities and it is difficult to handle a small lot. That is, it is because it is advantageous to use a sheet-like transparent sheet raw material for manufacturing a small-lot fluoroscopic sheet 1 with a small number of fluoroscopic sheets 1 having the same pattern (pattern layer 5).
[0052]
Next, the pattern layer 5 is formed by printing on the surface of the transparent substrate 2 side of the sheet-like transparent sheet original (step S6, FIG. 6D). The pattern layer 5 is formed by applying a pattern ink to the surface of the transparent substrate 2 by a known offset printing method. When ultraviolet curable ink is used as the pattern ink, the coated pattern ink is irradiated with ultraviolet rays and cured. In this way, if the pattern ink is cured by ultraviolet irradiation using an ultraviolet curable ink as the pattern ink, it is possible to immediately shift to the subsequent formation of the light color layer 6, and the light color ink is applied by printing. In this case, it is advantageous in that the riding of the light color ink is improved and a predetermined amount of the light color ink can be reliably applied by one printing.
[0053]
Next, a bright color layer 6 is laminated on the pattern layer 5 by printing (step S7, FIG. 6E). The light color layer 6 is formed by applying light color ink to the surface of the pattern layer 5 by a known offset printing method. When an ultraviolet curable ink is used as the bright color ink, the bright color ink after application is irradiated with ultraviolet rays and cured. In this way, if the light-colored ink is cured by ultraviolet irradiation using an ultraviolet-curable ink as the light-colored ink, it is possible to immediately shift to the subsequent formation of the dark color layer 7, and a predetermined amount of dark color can be obtained by one printing. The advantage of being able to reliably apply ink is the same as in the case of forming the picture layer 5. In addition, in order to ensure the concealability of the light color layer 6, the light color layer 6 having a predetermined thickness may be formed by repeating printing twice or more.
[0054]
Next, a dark color layer 7 is laminated on the light color layer 6 by printing (step S8, FIG. 6 (F)). The dark color layer 7 is formed by applying dark ink to the surface of the light color layer 6 by a known offset printing method. When an ultraviolet curable ink is used as the bright color ink, the bright color ink after application is irradiated with ultraviolet rays and cured. Thus, if the dark color ink is cured by ultraviolet irradiation using an ultraviolet curable ink as the bright color ink, the fluoroscopic sheet 1 can be immediately handled. The dark color layer 7 can also be formed by repeating printing twice or more.
[0055]
In this way, the fluoroscopic sheet 1 becomes a finished product, but may be further cut into a predetermined size to obtain a finished product.
[0056]
2.Second embodiment
1)Configuration of fluoroscopic sheet
FIG. 7 is a cross-sectional view schematically showing a basic configuration of a fluoroscopic sheet according to the second embodiment of the present invention. As shown in FIG. 7, the see-through sheet 11 according to the second embodiment has the configuration of the translucent sheet 1 according to the first embodiment except that a silver layer 12 is formed between the light color layer 6 and the dark color layer 7. Therefore, the same reference numerals are used for the same elements, and duplicate descriptions are omitted.
[0057]
The silver layer 12 is a layer for assisting the concealing property of the light color layer 6 and is formed by printing as will be described later. As a silver ink which comprises the silver layer 12, what added aluminum powder to well-known binder resin can be used. Further, when UV ink is used as the silver ink, the applied UV ink is cured by ultraviolet irradiation, whereby the dark ink constituting the dark color layer 7 can be surely placed on the silver layer 12, and the dark color layer 7 There is an advantage that can be reliably formed to the required thickness. Further, when the silver layer 12 is formed by the offset printing method, the high thixotropy of the offset ink can prevent the silver ink from becoming a film and covering the small holes 8 as in the first embodiment. is there.
[0058]
Then, the dark color layer 7 is formed so as to cover at least a part near the dark color layer 7 of the silver layer 12 forming the peripheral surface of the small hole 8. As a result, when the fluoroscopic sheet 11 is observed from the dark color layer 7 side, the silver layer 12 is hardly observed, and as a result, excellent transparency when observing the fluoroscopic sheet 11 from the dark color layer 7 side is ensured. The fact that it is possible is the same as in the case of the fluoroscopic sheet 1 according to the first embodiment.
[0059]
2)Function of fluoroscopic sheet
As with the fluoroscopic sheet 1 according to the first embodiment, the fluoroscopic sheet 11 is used by being affixed to the window glass of a car or the window glass of a building from the inside. The basic function of the fluoroscopic sheet 11 used in this way is the same as that of the fluoroscopic sheet 1 according to the first embodiment.
[0060]
Since the fluoroscopic sheet 11 is formed with a silver layer 12 for assisting the concealment of the light color layer 6, the dark color layer 7 is not seen through when viewed from the pattern layer 5 side, and has high contrast. There is an advantage that a picture can be provided.
[0061]
3)Production method of fluoroscopic sheet
The manufacturing method of the fluoroscopic sheet 11 is basically the same as that of the fluoroscopic sheet 1 according to the first embodiment. However, since the fluoroscopic sheet 11 includes the silver layer 12, the pattern layer 5 is formed on the surface of the sheet-like transparent sheet original fabric transparent substrate 2 by printing (step S6 in FIG. 5), and then on the pattern layer 5. The silver layer 12 is laminated and formed by printing.
[0062]
The silver layer 12 is formed by applying silver ink to the surface of the picture layer 5 by a known offset printing method. When an ultraviolet curable ink is used as the silver ink, the coated silver ink is irradiated with ultraviolet rays to be cured. Thus, if the silver ink is cured by ultraviolet irradiation using an ultraviolet curable ink for the silver ink, it is possible to immediately shift to the subsequent formation of the dark color layer 7, and a predetermined amount of dark ink can be obtained by one printing. The advantage that it can be reliably applied is the same as in the case of forming the pattern layer 5. The silver layer 12 can also be formed by repeating printing twice or more.
[0063]
After forming the silver layer 12 in this way, the fluoroscopic sheet 11 may be manufactured by executing Step 6 and subsequent steps of the first embodiment.
[0064]
3.Other embodiments
In the above embodiment, after forming the small hole 8 by perforating the transparent substrate 2, the adhesive layer 3 is formed and the release sheet 4 is pasted to form the transparent sheet original fabric. However, the present invention is not limited to this. Alternatively, the adhesive layer 3 may be formed on the transparent substrate 2 and the release sheet 4 may be attached, followed by perforation to form the small holes 8. That is, the fluoroscopic sheet 1 ′ may be formed in the order shown in FIG. The translucent sheet 1 ′ thus manufactured is formed by penetrating small holes 8 from the dark color layer 7 to the release sheet 4 as shown in FIG. 9.
[0065]
In the above embodiment, the fluoroscopic sheets 1 and 11 are configured to include the adhesive layer 3 and the release sheet 4, but the fluoroscopic sheet may be formed without the adhesive layer 3 and the release sheet 4. . In this case, the fluoroscopic sheet is attached to a window glass or the like using a substantially transparent adhesive tape, adhesive, or the like.
[0066]
Furthermore, the present invention is not limited to the above-described embodiments, and various modifications or changes can be made within the scope of the invention described in the claims.
[0067]
【Example】
(1) A plurality of small holes (circular with a diameter of 1 mm) are formed in a staggered pattern on a base material made of a transparent transparent polyethylene terephthalate film (Toray mirror S10, thickness 100 μm) by punching. did. The area ratio of the small holes was 38%.
[0068]
{Circle around (2)} A water-based acrylic emulsion-type pressure-sensitive adhesive was applied so as not to block small holes on the surface of the substrate, and a release sheet was attached to the surface of the paper-based pressure-sensitive adhesive. At this time, a release sheet having a polyethylene coat on both sides of a paper having a basis weight of 100 g was used.
[0069]
(3) A sheet was cut into a predetermined size (A version).
[0070]
(4) An advertising pattern for cigarettes consisting of four colors was printed using an ultraviolet curable offset ink (manufactured by Tokyo Ink: UV curable offset UV carton) with an offset printing machine. Thereafter, the ink was cured by ultraviolet irradiation.
[0071]
(5) Light color layer printing
A shaved version (solid version) is prepared, the surface and coating amount are adjusted by the amount of inking, and a white UV-curing offset ink (Tokyo Ink: UV-curing) with a printing pressure that can slightly coat small holes. (Type offset UV carton) was applied to the surface of the pattern layer. Thereafter, the ink was cured by ultraviolet irradiation. One application amount is 5 g / m.²As a result, coating was performed twice.
[0072]
(6) Dark layer printing
A shaved version (solid version) is prepared, the surface and coating amount are adjusted by the amount of inking, and a black UV-curing offset ink (Tokyo Ink) is applied at a printing pressure that can slightly coat small holes in the light color layer. (Manufactured: UV curable offset UV carton) was applied to the surface of the white layer. Thereafter, the ink was cured by ultraviolet irradiation. One application amount is 4 g / m.²It was.
[0073]
(7) The above sheet was punched into a predetermined shape.
[0074]
The fluoroscopic sheet manufactured as described above can be attached to a car window from the inside, for example, and the visibility from the inside is good. Moreover, it was possible to manufacture efficiently even with a small lot.
[0075]
【The invention's effect】
As described above, according to the method for manufacturing a fluoroscopic sheet of the present invention, it is easy to manufacture a small-lot fluoroscopic sheet. In addition, it is possible to manufacture an internally-attached fluoroscopic sheet, and therefore, it is possible to manufacture a fluoroscopic sheet that can be easily attached to a high-rise window glass and can be easily maintained. Furthermore, a fluoroscopic sheet having excellent transparency can be manufactured (claims 1 and 2).
[0076]
Furthermore, when a long transparent substrate with a plurality of small holes is cut into single sheets to form a single transparent substrate, it can be perforated while applying tension, and there is little occurrence of defects such as burrs. Small holes with high accuracy can be formed (claims 3, 4 and 5).
[0077]
Furthermore, by forming a silver layer, it is possible to manufacture a see-through sheet that compensates for the concealment of the bright color layer with the silver layer and can provide a picture with a higher contrast to the observer (Claim 6).
[0078]
Furthermore, when ultraviolet curable ink is used for printing, the process can be immediately shifted to the next process, the production efficiency can be improved, and the ink to be printed repeatedly can be reliably put on a predetermined thickness. 8).
[0079]
Furthermore, printing by offset printing method is suitable for plate making, delivery time, low loss and small lot correspondence, and in the case of UV curable ink, there is no heat, high coating printing, multicolor printing, ink thixotropy, There is little ink stringing with respect to the perforated original fabric, and there is no ink dripping when uncured after transfer, and the design around the hole is good. (Claims 9 and 10).
[0080]
Furthermore, when the light color layer is formed by printing a plurality of times, the light color layer can be sufficiently concealed, and as a result, a fluoroscopic sheet capable of observing a picture with high contrast can be manufactured. .
[0081]
Further, according to the fluoroscopic sheet of the present invention, when observing the fluoroscopic sheet from the dark color layer side, almost no bright color layer is observed, and as a result, excellent transparency when observing from the dark color layer side of the fluoroscopic sheet is ensured. (Claims 12 and 13). In addition, when an adhesive layer is provided, it can be easily affixed to the window glass of a car or a store, and since it is an internal adhesive type, it can be easily affixed to a high-rise window glass, and maintenance is easy ( Claim 13).
[0082]
Further, when a silver layer is provided between the light color layer and the dark color layer, the concealability of the light color layer can be supplemented by the silver layer, and a picture can be provided with higher contrast to the observer.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view schematically showing a basic configuration of a fluoroscopic sheet according to a first embodiment.
FIG. 2 is an enlarged cross-sectional view of a small hole position in FIG.
FIG. 3 is an example in which the fluoroscopic sheet according to the first embodiment is used for a window glass of a car.
FIG. 4 is an example in which the fluoroscopic sheet according to the first embodiment is used for a window glass of a building.
FIG. 5 is a flowchart of a manufacturing process of the fluoroscopic sheet according to the first embodiment.
6 is a cross-sectional view showing a state of the fluoroscopic sheet in each manufacturing process in FIG.
FIG. 7 is a cross-sectional view schematically showing a basic configuration of a fluoroscopic sheet according to a second embodiment.
FIG. 8 is a flowchart of a manufacturing process of a fluoroscopic sheet according to another embodiment.
FIG. 9 is a cross-sectional view schematically showing a basic configuration of a fluoroscopic sheet according to another embodiment.
[Explanation of symbols]
1,11 Perspective sheet
2 Transparent substrate
3 Adhesive layer
4 Release sheet
5 pattern layers
6 Light layer
7 Dark layer
8 small holes
12 Silver layer

Claims (9)

A substrate forming step of punching a tensioned wrapping-like transparent substrate to form a plurality of small holes ;
A transparent substrate forming step of a single wafer that forms a transparent substrate of a single wafer by cutting the paper-like transparent substrate in which the plurality of small holes are formed,
A pattern layer forming step of forming a pattern layer by printing to present a predetermined pattern on one surface of the transparent substrate of the sheet;
A light color layer forming step of forming a light color layer exhibiting a light color on the surface of the transparent substrate of the single wafer by printing;
A dark color layer forming step of forming a dark color layer exhibiting a dark color on the surface of the transparent substrate of the single wafer by printing;
A method for producing a fluoroscopic sheet, comprising: A substrate forming step of punching a tensioned wrapping-like transparent substrate to form a plurality of small holes ;
An adhesive layer forming step of forming an adhesive layer having a release sheet on one surface of the wrapping paper-like transparent substrate in which the plurality of small holes are formed;
After forming the adhesive layer by the adhesive layer forming step, a sheet-like transparent substrate forming step of cutting the wrapping paper-like transparent substrate formed with the plurality of small holes into sheets to form a sheet-like transparent substrate;
A pattern layer forming step of forming a pattern layer on the other side of the transparent substrate of the sheet by printing a pattern layer having a predetermined pattern; and
A light color layer forming step of forming a light color layer exhibiting a light color on the surface of the transparent substrate of the single wafer by printing;
A dark color layer forming step of forming a dark color layer exhibiting a dark color on the surface of the transparent substrate of the single wafer by printing;
A method for producing a fluoroscopic sheet, comprising: An adhesive layer forming step of forming an adhesive layer having a release sheet on one surface of a wrapping paper-like transparent substrate;
Substrate forming step of forming a plurality of small holes by punching a tensioned wrapping paper-like transparent substrate after the adhesive layer forming step ;
A transparent substrate forming step of a single wafer that forms a transparent substrate of a single wafer by cutting the paper-like transparent substrate in which the plurality of small holes are formed,
A pattern layer forming step of forming a pattern layer on the other side of the transparent substrate of the sheet by printing a pattern layer having a predetermined pattern; and
A light color layer forming step of forming a light color layer exhibiting a light color on the surface of the transparent substrate of the single wafer by printing;
A dark color layer forming step of forming a dark color layer exhibiting a dark color on the surface of the transparent substrate of the single wafer by printing;
A method for producing a fluoroscopic sheet, comprising: In the manufacturing method of the fluoroscopic sheet as described in any one of Claims 1 thru | or 3 ,
The method further includes a silver layer forming step of forming a silver layer having a silver color by printing on the surface of the transparent substrate of the single wafer between the light color layer forming step and the dark color layer forming step. A manufacturing method of a fluoroscopic sheet characterized by the above. In the manufacturing method of the fluoroscopic sheet as described in any one of Claims 1 thru | or 3 ,
At least in the pattern layer forming step and the bright color layer forming step, printing is performed using an ultraviolet curable ink. In the manufacturing method of the fluoroscopy sheet | seat of Claim 4 ,
At least in the pattern layer forming step, the light color layer forming step, and the silver layer forming step, printing is performed using an ultraviolet curable ink. In the manufacturing method of the fluoroscopic sheet as described in any one of Claims 1 thru | or 3 ,
A fluoroscopy sheet manufacturing method, wherein printing is performed by an offset printing method in the pattern layer forming step, the light color layer forming step, and the dark color layer forming step. In the manufacturing method of the fluoroscopy sheet | seat of Claim 4 ,
The method for producing a see-through sheet, wherein the pattern layer forming step, the light color layer forming step, the silver layer forming step, and the dark color layer forming step are printed by an offset printing method. In the manufacturing method of the fluoroscopic sheet as described in any one of Claims 1 thru | or 4 ,
In the light color layer forming step, the light color layer is formed by printing a plurality of times.

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