JPH06143481A - Laminating auxiliary sheet - Google Patents

Abstract

PURPOSE:To provide a laminating auxiliary sheet enabling simple and easy laminating work and easy in pattern matching. CONSTITUTION:A laminating auxiliary sheet is obtained by arranging a transparent film (B) having a positioning mark applied thereto to the surface subjected to release treatment of a transparent protective film (A) having a transparent self-adhesive layer (1) provided to the untreated single surface thereof through a transparent self-adhesive layer (2).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminating auxiliary sheet, which is used for laminating an image-printed film on a wall surface or for laminating an image-printed film with an image-printed film. For easy attachment on-site without distorting the pattern, and for easy and easy attachment of a transparent protective film that protects the film on which the image is printed from ultraviolet deterioration or surface stains. The present invention relates to a protective sheet for laminating.

[0002]

2. Description of the Related Art Conventionally, a transparent protective film is attached to a film or the like on which an image is printed to protect the printed surface. And as a method of sticking a protective film on the film on which multiple images that normally require pattern matching are printed,
First, a film on which an image is printed is attached to a wall surface or the like, a film on which an image is printed is attached thereon, and then a protective film is further attached thereon. However, in this case, there is a problem that not only skill is required for the bonding work of the films printed with the images but also it takes time. There is also a method of pasting a protective film immediately after printing, but in this case as well, pattern matching is difficult at the time of laminating work, and in general, the film on which the image is printed is often thin, so workability is poor. However, it was the actual situation that it was not done so often except in special cases.

[0003]

In view of such circumstances, an object of the present invention is to solve the above-mentioned problems at the time of pasting a conventional transparent protective film on a protected film, simply and easily, and An object of the present invention is to provide a bonding auxiliary sheet that can be easily bonded to a wall or the like without causing the pattern to be displaced.

[0004]

The gist of the present invention is to have a transparent adhesive layer (1) on one surface and the other surface on the other surface of a release-treated transparent protective film (A). The transparent sheet (B) having a positioning mark is arranged through the transparent pressure-sensitive adhesive layer (2).

The transparent protective film (A) used in the present invention is not particularly limited as long as it is a transparent film, and has a light transmittance of 50% or more, preferably 70%.
% Or more of the film is desirable. Specific examples of such a film (A) include fluorine-based films such as polyvinyl fluoride and polyvinylidene fluoride.
Examples thereof include acrylic film, vinylon film, polyester film, polyimide resin film, polysiloxane film and the like. A film having a fluorine-based transparency is preferably used in terms of weather resistance and antifouling property. The thickness of these films is 10-100
It is 0 μm, preferably 20 to 100 μm. The surface of the transparent protective film (A) opposite to the surface having the transparent pressure-sensitive adhesive layer (1) needs to be subjected to a release treatment, and this treatment prevents the transparent pressure-sensitive adhesive layer (2) from adhering to the pressure-sensitive adhesive. be able to. As a method of the mold release treatment, a usual method can be used, but a silicon treatment is preferable. A function as a protective film can be imparted to the transparent protective film by blending an additive such as an ultraviolet absorber and an antioxidant.

The transparent adhesive layer of the present invention includes an adhesive layer (2) to which the transparent protective film (A) and the transparent film (B) are adhered, a transparent protective film (A) and a film on which an image is printed. There is an adhesive layer (1) for laminating. When the auxiliary sheet with the image-printed film is attached to the film with the image-printed on the wall or the like, and pattern matching is performed, the transparent protective film (A) is subjected to a release treatment on one side. It is necessary that the adhesive force of the transparent adhesive layer (1) is stronger than that of the transparent adhesive layer (2). The pressure-sensitive adhesive used in the pressure-sensitive adhesive layer (A) and the pressure-sensitive adhesive layer (B) is not particularly limited as long as it is a pressure-sensitive adhesive having transparency, but an acrylic pressure-sensitive adhesive is preferably used in terms of transparency and weather resistance.

The transparent film (B) of the present invention can be used without particular limitation as long as it has transparency because it is finally removed. Examples of such a film (B) include polyester film, paper, polyethylene film, vinyl chloride film, vinyl chloride-
A vinylidene chloride copolymer film or the like is used. Due to the necessity of pattern matching, it is more preferable to use a film having a light transmittance of 40% or more, preferably 70% or more. The thickness of the transparent film (B) is 10 to 1000
μm, preferably 20 to 100 μm. Further, the transparent film (B) of the present invention needs to be provided with positioning marks for the convenience of pattern matching. For example, lines at equal intervals in the horizontal direction, lines at equal intervals in the vertical direction, A mark such as a lattice pattern in which these are combined is attached to the transparent film (B) by printing or the like. There are no particular restrictions on the type and spacing of the marks, but it is preferable that the marks be provided at intervals of 2 to 5 cm. Adhesive layer (2) of transparent film (B)
It is preferable that the surface opposite to the adhesive surface is subjected to a release treatment. By performing the release treatment, the laminating auxiliary sheet of the present invention can be used without using release paper in the transparent adhesive layer (1) of the transparent protective film. It is possible to wind up. This mold release process can be performed in the same manner as the mold release process.

The laminating auxiliary sheet of the present invention has a transparent adhesive layer (1) on one surface and a transparent adhesive layer (1) on the other surface of the transparent protective film (A) having the other surface subjected to a release treatment. The transparent film (B) having a positioning mark is arranged through the step 2), and the patterning of the film on which the image is printed can be easily and easily performed. The above-mentioned bonding auxiliary sheet can be produced by an ordinary method. For example, one surface of the transparent protective film (A) is subjected to a release treatment, and then the transparent adhesive layer (1) is formed on the other surface. It can be manufactured by laminating the transparent film (B) having the positioning mark and the transparent adhesive layer (2) on the release treated surface.

[0009]

The present invention will be described in more detail based on the following examples, but the invention is not intended to be limited thereto. The workability was evaluated in three grades of ◯, Δ, and × according to the ease of pattern matching and bonding. Also, the color fading is
Ultraviolet accelerated tester SU manufactured by Dainippon Plastics Co., Ltd.
Using V-W11, UV intensity 90 mW / cm ↑ 2, black panel temperature 83 ° C, 70% RH, UV irradiation time 16 hours, water injection 6 hours, reset 2 hours as one cycle for 500 hours. It was measured with a color difference meter Z-1001P manufactured by Denshoku Industries Co., Ltd. and shown as a ΔE value.

Example 1 A polyester film having a light transmittance of 96% was used as the transparent film (B), a positioning mark of 5 × 5 cm was printed on the polyester film, and one surface of the film was subjected to a releasing treatment.
After applying an acrylic pressure-sensitive adhesive to the surface of the polyester film that has not been subjected to release treatment, a transparent protective film (A)
As the above, a polyvinylidene fluoride film having a light transmittance of 88% whose one surface was subjected to a mold release treatment was used, and the mold treated surfaces of the films were superposed. Furthermore, the above-mentioned acrylic pressure-sensitive adhesive was applied to the surface of the polyvinylidene fluoride film which had not been subjected to the mold release treatment, and the film was wound up to form an auxiliary sheet for bonding. Then, the film on which the image was printed was attached to the auxiliary sheet for laminating that was partially cut off, and the film on which the image was printed with an adhesive was also attached to the wall.
Adhesive is applied on the Ao size film with the image printed on the wall, and the film with the image with the same pattern is pasted on it. When I worked, pattern matching was easy. Workability and discoloration were evaluated, and the results are shown in Table 1.

Example 2 Size 950 × 1300 m as a transparent protective sheet (A)
Using a polyvinyl fluoride film (trade name: Tedra, manufactured by DuPont, thickness: 25 μm) having a light transmittance of 75% at m, an auxiliary sheet for bonding is prepared and bonded in the same manner as in Example 1 except that the film is not wound. I did the matching work. Workability and discoloration were evaluated, and the results are shown in Table 1.

Comparative Example 1 A film on which an image is printed is attached to a wall surface using an acrylic pressure-sensitive adhesive, then the acrylic pressure-sensitive adhesive is applied on the film on which the image is printed, and then an image with the same pattern is printed. I pasted the film. Then, a vinyl chloride film was further attached as a transparent protective sheet. The workability and the color fading property were evaluated, and the results are shown in Table 1.

Comparative Example 2 The release paper of the film on which the adhesive-treated image was printed was peeled off, and the film on which the image of the same pattern was printed was laminated on the workbench. An acrylic pressure-sensitive adhesive was applied onto this laminate, and a vinyl chloride-vinylidene chloride film was attached as a transparent protective sheet (A).
The workability and the color fading property were evaluated, and the results are shown in Table 1.

[0014]

[Table 1]

[0015]

As described above, according to the present invention, patterning is facilitated and workability is remarkably improved by combining a transparent film with a mark with a transparent protective film.

[Procedure amendment]

[Submission date] October 1, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Added

[Correction content]

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a bonding auxiliary sheet of the present invention.

[Explanation of Codes] 1, 2: Transparent adhesive layer A: Transparent protective film B: Transparent film

Claims (3)

[Claims] 1. A transparent adhesive film (A) having a transparent pressure-sensitive adhesive layer (1) on one surface and the other surface having been subjected to a release treatment, and the transparent adhesive film (2) is positioned on the other surface of the transparent protective film (A). An auxiliary sheet for laminating, comprising a transparent film (B) with a mark. 2. The laminating auxiliary sheet according to claim 1, wherein the surface of the transparent film (B) opposite to the surface on which the adhesive layer (2) is adhered is subjected to a release treatment. 3. The transparent protective film (A) has a light transmittance of 50% or more, and the transparent film (B) has a light transmittance of 4 or more.
The auxiliary sheet for laminating according to claim 1 or 2, which is 0% or more.