JPS6039036B2 - Method for manufacturing decorative sheet - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a method for producing a decorative sheet used for displaying metallic-colored characters and designs on molded products such as containers and lids, and others. The present invention relates to a method for manufacturing a sheet for shaping molded products, etc., which is used to shape molded products by directly attaching it to the surface of the molded product, or by transferring it or the like.

Decorative sheets for displaying metallic letters or designs on containers, etc. by pasting them onto the surface of containers, etc. are, for example, laminated metal foil on a transparent film, or metal vapor-deposited films. After forming an etching resist film representing desired characters or designs on this metal foil or vapor deposited film by screen printing method or the like, an etching resist film of the metal foil or vapor deposited film is formed using a predetermined etching solution. It is manufactured by etching and removing the unmarked parts, and then removing the etching resist film as it is or by dissolving and removing it with a predetermined stripping solution to form the display part 2 of metal letters and designs on the film. .

However, when producing decorative sheets using such an etching method, there are problems with wastewater treatment when the etching solution and resist film stripping solution age, and wastewater is generated during the manufacturing process, which is undesirable in terms of pollution prevention. ,Also,
Etching solutions and resist film stripping solutions may have an adverse effect on the film base material, so the film material, etching solution, and resist film stripping solution must be carefully selected, and the necessary parts during the etching process must be carefully selected. Even if it is masked with an etching resist film, it is inevitable that side etching will occur, and as a result, the display area of characters and designs formed by metal foil or vapor-deposited film may not be clearly outlined. .

Moreover, the conventional etching method has problems in that the process is relatively complicated and requires a large number of steps, and furthermore, the manufacturing cost is not low. The present invention eliminates the drawbacks of the conventional etching method (wet method) mentioned above, and because it uses a dry method, there is no pollution problem such as disposal of waste liquid during the manufacturing process, and the film base material is not attacked by etching solution. It is possible to easily, reliably, and efficiently produce multicolor adjustment sheets, including metallic colors, which can be directly attached to containers, etc. or used as transfer foils, etc., without any problems such as smearing, etc., and the process is simple. It is also an object of the present invention to provide a method for manufacturing a slicing sheet that can be manufactured at low cost. That is, in order to achieve the above object, the present invention forms an adhesive layer by printing desired characters and designs on a predetermined film directly or through a release layer using pressure-sensitive or heat-sealable adhesive ink. At the same time, the first sheet material for decoration is sent to the pressing device, and the second sheet material for decoration, which is formed by forming a colored film layer such as a metal vapor deposited film on the film via a release layer, is transferred to the above-mentioned method. 1. Send the sheet material for seaming facing the adhesive layer to the pressure padding device, press both the sheet materials together by the pressure padding device, and then separate the two sheet materials from each other to form the sheet material for seaming. By adhering the colored film layer and release layer of the second articulating sheet material to the adhesive layer in a shape corresponding to this, a decorative sheet having a display portion showing letters and designs in metallic color etc. is obtained. This is how it was done.

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 3.

Figure 1 shows an outline of the manufacturing method for a sheet for tuna, which is used to display metal-colored letters and designs on containers, etc. by applying a brush to the container.
When producing such a decorative sheet, first apply a pressure-sensitive adhesive ink to one side of a transparent or colored film 1 such as a polyester film, which flows viscous and adheres to the object when pressed, or when heated. Using heat-seal adhesive ink that softens or melts and adheres to the adhered material, screen printing method, offset EO method,
A first decorative sheet material 3 with an adhesive layer 2 formed thereon is produced by printing desired characters and designs using a printing method such as gravure printing.

In this case, the adhesive layer 2 formed with the above ink is transparent;
It may be formed to be translucent or opaque, and may be colorless or colored, and may be the same color as the above film or a different color.
In the figure, 2a represents a transparent adhesive layer 2, and 2b represents a semi-transparent adhesive layer. On the other hand, the first decorative sheet material 3
Separately, a second seaming sheet material 7 is prepared in which a release layer 5 is formed on substantially the entire surface of one side of a film 4 such as a polyester film, and a colored film layer 6 is formed on substantially the entire surface of the release layer 5.

In this case, the film 4 may be opaque, but
It is preferable to use transparent or translucent materials.
Further, the release layer 5 is formed by applying a required paint, etc. In this case as well, the release layer 5 may be opaque, but is preferably transparent or translucent.
Note that the film 4 and the release layer 5 may be cold-colored or colored. Furthermore, the formation of the colored layer 6 is
For example, a metal evaporated film may be formed by vacuum evaporating a metal such as aluminum on the release layer 5, or a metal film or an inorganic film such as a metal oxide may be formed by vapor phase plating such as cathode sputtering or ion plating. This is done by forming a coating of a metal compound, in which case the colored layer 6 is formed in a metallic color. In addition, in the said 1st and 2nd sheet material 3, 7 for decoration, the adhesive force between the film 4 and the peeling layer 6 of the 2nd sheet material 7 for decoration is formed the weakest.

Next, the first and second articulation sheet materials 3 and 7 formed as described above are held with their adhesive layers 2 and colored film layers 6 facing each other, and are then held by pressing rolls 8a and 8b, respectively. The materials 3 and 7 are continuously fed between the pressing devices 8 and pressed by these rolls 8a and 8b.

In this case, if the adhesive layer 2 is of a pressure-sensitive type, it is sufficient to simply press the two materials 7 together, but if the adhesive layer 2 is of a heat-seal type, the roll 8a is heated to an appropriate temperature. 8b is heated and both materials 3 and 7 are heated and pressed.
After the materials 3 and 7 are compressed in this way, they are fed out from between the rolls 8a and 8b, and when the materials 3 and 7 are separated from each other, the adhesive layer 2 of the first articulating sheet material 3 is bonded to the material. A colored layer 6 having a shape of letters and designs corresponding to the adhesive layer 2
' and a peeling layer 5' is transferred and adhered thereto, whereby the sheet 1 is formed into a shape corresponding to it through the adhesion layer 2 formed by printing desired characters and designs on one side of the sheet 1. A scale sheet 9 is obtained in which the peeled colored film layer 6' and the peeling layer 5' are laminated. As shown in FIG. 2, this joining sheet 9 has a film and an adhesive layer 2 that are transparent or translucent, so that the shapes of letters and designs corresponding to the adhesive layer 2 can be shaped. The display portion 10 appears on the sheet 9 by the colored film layer 6', and in this case, since the colored film layer 6' is formed in a metallic color, the metallic character or pattern is partially displayed. A seaming sheet 9 is obtained.

When the film 1 and the adhesive layer 2 are each colorless, the color (metallic color) of the colored film layer 6' is directly exposed to the outside, and at least one of the film and the adhesive layer 2 is colored. In this case, the color of the display section 10 appears as a mixture of the color of the colored film layer 6'. In addition, in FIG. 2, 10a is a display area in which the adhesive layer 2 is transparent;
b represents a display portion in which the adhesive layer 2 is semitransparent, and these display portions 10a and 10b have different colors. This joining sheet 9 can be used to join containers, etc., by wrapping the container as it is and pasting the edges together, but the joining sheet 9 can be used for joining the entire surface of the release layer 5' side of the joining sheet 9 or It is also possible to partially apply a pressure-sensitive adhesive or the like and stick it to a container or the like using this adhesive.

Note that after the colored film layer 6' and the release layer 5' have been transferred to the support layer 2 in the same shape, the second drinking sheet material 7 has the same shape as the third sheet material 7.
As shown in the figure, when the film 4 is transparent or semitransparent, the colored film layer 6' and the release layer 5'
Since it is extracted, it can be used as a decorative sheet 12 on which a corresponding display section 11 is formed.

That is, in this decorative sheet 12, the display part 11 is formed by punching, and the part 13 other than the display part 11 appears in a metallic color, and is used in the same manner as the above-mentioned decorative sheet 9. In this case, the film 4 of the decorative sheet 12 is used as it is without being peeled off. Further, FIG. 4 shows another embodiment of the present invention, and explains the outline of a method for producing a cutting sheet used as a transfer foil.

(In the embodiment shown in FIG. 4, the same reference numerals are given to the same components as in the embodiment shown in FIG.
A transparent or translucent colorless or colored release layer 14 is formed on almost the entire surface of one side of the film (in this case, the film may be opaque), and a pressure-sensitive or heat-sealable release layer 14 is formed on this release layer 14. A roll 8a presses the first seam sheet material 3 on which the adhesive layer 2 is formed by printing the required characters and designs using the same ink.
.
The sheet material 7 is continuously fed between rolls 8a and 8b with its colored film layer 6 facing the adhesive layer 2.
After the above-mentioned materials 3 and 7 are compressed by a and 8b, they are separated from each other, thereby forming a colored film layer 6' and a release layer 5' in the same shape on the adhesive layer 2 of the first articulating sheet material 3. After peeling and adhesion, the transfer adhesive storage tank 15 and this storage tank 1 are removed.
A first roll 16 which is rotatably arranged in a state where it is partially immersed in the adhesive 20a in the adhesive 20a in the adhesive 20a, a second roll 17 which is in rolling contact with the first roll 16, and a doctor 18. The provided transfer adhesive coating device 19 coats the entire surface of the first decorative sheet material 3 on the peeling layer 5' side with a transfer adhesive 20a to form a transfer adhesive layer 20, thereby forming a transfer foil. A sheet 21 for jointing is obtained. In this case, the adhesive force between the film 4 of the second articulation sheet material 7 and the release layer 5 is formed to be the weakest, and the adhesive force between the film 1 and the release layer of the first articulation sheet material 3 is set to be the weakest. The peeling layer 14 is selected so as to have a large adhesive force with the colored film layer 6 and to prevent the peeling layer 14 from adhering to the colored film layer 6. Further, the transfer adhesive layer 20 may be transparent or opaque, and may be colored. Then, as shown in FIGS. 5 and 6, the articulation sheet 21 obtained as described above is coated with an adhesive layer 20 on the surface of the transferred object 22 such as metal, glass, plastic, paper, etc. The sheet 21 is heated and pressed from the film 1 side using a heat roll 23, etc., and then the film is used. Multicolored letters and designs are transferred and formed, including beautiful metallic decorations all over the surface.

In the above embodiment, the colored film layer is formed in a metallic color by vapor phase plating, but the present invention is not limited to this, and various changes can be made to other configurations.

As explained above, according to the present invention, there is provided a first joint sheet material in which an adhesive layer is formed by printing required characters and designs directly on a predetermined film or with heat-sealable adhesive ink, and a film. A second joining sheet material having a colored film layer such as a metal vapor deposited film formed thereon via a release layer is sent to a pressure welding device with the colored film layer facing the adhesive layer, and both materials are bonded to this pressure bonding device. By a very simple operation of press-contacting each other with a device, it is possible to easily, reliably, and efficiently produce a cutting sheet on which a display part showing a large number of characters and designs including metallic colors is formed. In addition, since the present invention can obtain the cutting sheet by the dry method, there are no pollution problems such as waste liquid treatment in the manufacturing process, and the film base material is not attacked by etching liquid or the like. There is no risk of side etching of the colored film layer (metal foil layer, layer deposited by Shoyabu equipment) due to the etching solution, and the display area has clear outlines and beautiful letters and designs, and can be directly attached to containers, etc., or can be used as a transfer foil. It has the advantage that it is possible to easily and inexpensively manufacture a cutting sheet used as a carpenter, etc.

[Brief explanation of the drawing]

FIG. 1 is a schematic cross-sectional view showing one embodiment of the present invention, FIGS. 2 and 3 are plan views showing a joint sheet obtained by the method shown in FIG. 1, and FIG. 4 is a schematic cross-sectional view showing an embodiment of the present invention. A schematic cross-sectional view showing another example, FIG. 5 is a schematic cross-sectional view showing how to use the sheet for decoration obtained by the method shown in FIG. 4, and FIG. FIG. 1... Film, 2, 2a, 2b... Adhesive layer, 3...
First seaming sheet material, 4: Film, 5: Peeling layer, 6: Colored film layer, 7: Second seaming sheet material, 8: Press bale device, 9, 12 ...Kashu sheet, 14
...Release layer, 21... Sheet for adjustment. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1. A first decorative sheet material, which is formed by printing desired characters and designs on a predetermined film directly or through a release layer using pressure-sensitive or heat-sealable adhesive ink to form an adhesive layer, is applied to a pressure welding device. At the same time, a second decorative sheet material formed by forming a colored film layer such as a metal vapor deposited film on the film via a release layer is placed so that the colored film layer faces the adhesive layer of the first decorative sheet material. After the above-mentioned sheet materials are pressed against each other by this pressure-welding device, these two sheet materials are separated from each other, and a corresponding adhesive layer is applied to the adhesive layer of the first decorative sheet material. A method for producing a decorative sheet, characterized in that a colored film layer and a release layer of a second decorative sheet material are attached to the shape.