JPS5938102B2 - design - Google Patents

Description

[Detailed description of the invention] The present invention relates to a synthetic resin laminate for design.

More specifically, the present invention comprises a copyable synthetic resin upper layer surface-treated with a composition containing a photosensitive material, a lower layer made of a synthetic resin or an inorganic material, and an intermediate layer bonding these two layers. The present invention relates to a synthetic resin laminate for design, in which the layer is peeled off at the adhesive surface with the lower layer. The synthetic resin laminate for design according to the present invention can be produced by, for example, directly copying designs such as letters and figures onto the copyable upper layer, cutting out the necessary parts, and coloring them with a desired water-based paint. It can be used to create colored design manuscripts.

Conventionally, to create this type of manuscript, the manuscript creator must simultaneously glue together a transparent synthetic resin film, tracing film, and adhesive, or glue sticky Mino paper to the synthetic resin film at the same time. I was using it.

However, these methods are very inconvenient and have the disadvantage that the material may be uneven due to differences in the skill of the manuscript creator. One object of the present invention is to provide a synthetic resin laminate that is easy to use, has constant quality, and can be provided with an accurate color design. Thus, one of the features of the synthetic resin laminate for designs of the present invention is that the two synthetic resin layers are adhered via an adhesive intermediate layer, but when they are peeled off, a transparent layer with a design or color is formed. No adhesive intermediate layer remains on the synthetic resin lower layer.
Moreover, no release agent layer is used on top of this lower layer.

Other features and advantages of the invention will become more apparent from the description below.

In the present invention, the synthetic resin upper layer surface-treated to make it copyable means a synthetic resin upper layer surface-treated with a composition containing a photosensitive material.

As a light-sensitive material, Jaromi and John Kos ed.
Published by Wiley & Sons, Inc., 1965.
light-SensltiveSystems”CHA
The photosensitive materials described in PTERI, CHAPTER■, ■, V, ■, ■, ■, and ■ can be used, but preferably the composition based on the diazo compound for dry development described in CHAPTER■ is used. preferable.

Furthermore, since the coloring material commonly used for design is a water-based paint, it is desirable that the upper layer be water resistant. Examples of the material for the synthetic resin upper layer include oriented polypropylene, polyethylene terephthalate, polybutylene terephthalate, polyethylene phthalate, cellulose butyrate, cellulose diacetate, cellulose triacetate, and hard polyvinyl chloride. Most preferred is polyethylene terephthalate. The thickness of the upper layer is about 9-1
00 microns, preferably about 12-30 microns. Furthermore, the transparency of this upper layer is not particularly limited, but preferably transparent or translucent.

In addition, the soil layer, which has been surface treated to make it copyable, is further
As described in No. 89791, fine powder of about 2 to 10-odd microns (FinepOw) of inorganic silica, talc, etc.
der) may be resurfaced so that it can be written on with a pencil or the like to ensure a uniform dispersion.

In the present invention, the lower layer made of synthetic resin or inorganic material must have appropriate strength as a design substrate, have good adhesion to commonly used water-based paints, and be water resistant. .

Examples of synthetic resin materials suitable for such purposes include oriented polypropylene, polyethylene terephthalate, and cellulose triacetate. Examples of inorganic materials include glass, ceramics, and metals such as aluminum, with aluminum foil or sheet being particularly preferred. The thickness of the lower layer is preferably thicker than the upper layer, and a suitable value is about 40 to 180 microns. However, it may be slightly thicker. Transparency is not particularly determined.

In the present invention, the intermediate layer that adheres both layers refers to an adhesive layer that substantially adheres an upper layer and a lower layer, and specifically, the intermediate layer that adheres the upper layer and the lower layer. In view of this, it is preferable to use a thin layer of pressure-sensitive adhesive.

The thickness of this intermediate layer is preferably about 2 to 10 microns, and the material is a material that has pressure-sensitive adhesive properties at room temperature as an adhesive and is made of substantially transparent synthetic rubber, polyacrylic acid, silicone resin, etc. Examples include pressure sensitive adhesives containing resin.
In the present invention, the intermediate layer is peeled off at the adhesive surface with the lower layer, which means that when an attempt is made to peel off the upper layer and the lower layer, the intermediate layer that adheres both layers is always separated from the lower layer, that is, the intermediate layer is separated from the upper layer. This means that it was made to separate while being glued to it. In other words, the bond between the intermediate layer and the lower layer must be a releasable adhesive, and the bond between the intermediate layer and the upper layer must have adhesive strength greater than that of the releasable adhesive. Therefore, for this purpose, if the material of the intermediate layer cannot have the above-mentioned difference in adhesion to the upper and lower layers, the lower surface of the upper layer should be roughened by sand blasting or solvent etching, or corona discharge. It is necessary to perform oxidation treatment or apply an under coating to increase adhesion. Preferred undercoatings include mixtures of linear polyester and polyurethane compounds. Of course, if the material of the intermediate layer itself can meet the above-mentioned adhesion conditions for the upper and lower layers, there is no need to perform any treatment on the lower surface of the upper layer. The present invention will be described in detail below based on embodiments shown in the figures.

Note that the present invention is not limited thereby. First, in Figure 1, 1 is a synthetic resin laminate for design.
It consists of an upper layer 2, an adhesive intermediate layer 3, and a lower layer 4.

The upper layer 2 is made of biaxially oriented polypropylene and has a thickness of about 20
A photosensitive material mainly composed of a diazo compound for dry development is coated on the top surface of the layer with a thickness of about microns to impart copyability, and the bottom surface is treated with corona discharge to increase the contact angle with water (
Contact ignorance is below 78%.

The intermediate layer 3 is a transparent pressure-sensitive adhesive layer made of a nitrocellulose/acrylic acid polymer and a polyurethane initial condensate having active isocyanate groups, and has a thickness of about 6 microns. The smooth plane of the biaxially stretched polypropylene intermediate layer has peelability and is easy to break. The lower layer 4 is a transparent layer of about 60 microns of biaxially oriented polypropylene. Therefore, the lower surface of the upper layer 2 and the upper surface of the lower layer 4 that are in contact with the intermediate layer 3 are made of the same biaxially oriented polypropylene, but the lower surface of the upper layer 2 has been treated with corona discharge, so it has a strong adhesive force and can be peeled off. is always performed on the upper surface of the lower layer 4. Next, a method for producing a color printing original using the synthetic resin laminate 1 explained above will be described in detail.

First, in FIG. 1, an original drawing (not shown) is placed on a synthetic resin laminate 1, and a sketch 5 is copied onto the surface of the upper layer 2.

Then, cut the upper layer 2 with a knife along the (line) of the sketch, and pull up the cut part of the upper layer 2 in the direction of the arrow (FIG. 2). Here, as explained above, the peeling surface is on the adhesion surface between the intermediate layer 3 and the lower layer 4, and since the membrane of the intermediate layer 3 is extremely easy to break, the cut upper layer 2 and the corresponding intermediate layer are separated. Only 3 is peeled off. Next, a predetermined color 6 is applied from above by spraying, and the remaining upper layer 2 is similarly pulled up and peeled off (FIG. 3). In addition, when applying the color, since no part of the intermediate layer 3 remains on the lower layer 4, the color adhesion is good. Of course, the intermediate layer 3 is also peeled off at any time, and the color printing 7 corresponds to the cut shape.
Only this remains on the lower layer 4, forming a color printing original (FIG. 4). Further, this color printing original may be superimposed on another color printing original to form a multicolor printing original, or may be superimposed on a ready-made background original. In this case, if an adhesive layer and a removable film are sequentially laminated on the lower surface of the lower layer 4, the adhesive surface will be exposed just by peeling off the releasable film, and it will be possible to bond it to the background document. In FIG. 3, before peeling off the entire remaining upper layer 2 together with the intermediate layer 3, a part of the upper layer 2 is further cut, that part is peeled off, a different color is applied, and the remaining upper layer 2 is removed with the intermediate layer 3. If it is peeled off together with layer 3, a two-color printing original is completed. Of course, this manuscript may be placed with either the top or bottom side as the front side, if necessary. Other combinations of materials that have the same structure as the synthetic resin laminate 1 shown in FIG. 1 are illustrated below.

(2) Instead of corona discharge treating the lower surface of the upper layer, the lower surface is undercoated with a linear polyester and polyurethane compound.

The other configurations are the same in FIG. 5, where v is a synthetic resin laminate with different materials for the upper layer z and lower layer 4', and the upper layer z is made of cellulose triacetate whose surface has been subjected to the same copying treatment as in FIG. The intermediate layer y is composed of a natural rubber adhesive containing a liquid tackifier such as an esterified product of hydrogenated rosin, and the lower layer 1 is composed of polyethylene terephthalate.

Here, the adhesion of the intermediate layer y is stronger to cellulose triacetate than to polyethylene, and therefore the peeling surface is the intermediate layer y.
and the lower layer 4 are bonded to each other. Of course, in this case, no treatment is required to increase the adhesive force on the lower surface of the upper layer z.
Further other embodiments will be described below.

Example 1' Both sides of a biaxially stretched polypropylene film with a thickness of 20 μm were treated with corona discharge, and the contact angle of the surface with water was set to 70 μm.
I let it go.

A coating having the following composition as a primer was applied to one side of the above film to a dry thickness of 1 μm. The above primer-coated film was completely transparent and bright as a whole.

Next, a photosensitive material having the following composition was applied to the primer-coated surface of the film to a dry thickness of 3 microns.

F4L'4d) The 24 μm thick film provided with the photosensitive material layer had a light brown appearance and was transparent.

Next, the surface of the film coated with the photosensitive material that was not coated with the photosensitive material and a plate having a thickness of 1 m10A1 were laminated and integrated through a layer of pressure-sensitive adhesive made of acrylic resin. The laminate can be separated by applying force to the two layers, one of which is Al
The board itself has no acrylic pressure-sensitive adhesive left on its surface.

The other is a transparent film with a layer of photosensitive material, and has a layer of acrylic pressure-sensitive adhesive on the opposite side of the photosensitive material. Place the photosensitive material side of the laminate that does not separate into the two layers above, overlay the transparent original of the pattern on top, and expose it for a predetermined time (30 seconds to 1 minute and 30 seconds) using a vacuum printer, and then The laminate was removed from the vacuum printer and exposed to an ammonia gas atmosphere for 1 minute.

Development of the photosensitive material took place in an ammonia gas atmosphere, and a pattern corresponding to the transparent original was copied as a sepia image onto the layer of photosensitive material on the surface of the laminate. After making cuts in the film surface along the pattern of the sepia image and removing the desired stencil, the surface of the laminate was sprayed with color lacquer. After the lacquer had dried, the film layer with the image copied onto the photosensitive material layer was removed from the laminate, and a pattern of color lacquer corresponding to a stencil was obtained on the surface of the Al plate.
Example A lacquer having the following composition was coated on one side of a biaxially oriented polyethylene terephthalate film having a thickness of 20 μm to obtain a photosensitive translucent film having a thickness of 25 μm after drying.

The film coated with the above-mentioned lacquer was a reddish-yellow translucent film, the coating film was finely matte, could be written on with a pencil, and had a surface hardness of 5H in pencil hardness.

Next, in the same manner as in Examples, the non-coated surface of the film and polystyrene synthetic paper were laminated and integrated via a layer of acrylic pressure-sensitive adhesive to form a laminate.

The film surface of the laminate is provided with a photosensitive and writable layer, and when a transparent original with a pattern is placed on the surface, exposed to ultraviolet light, and then developed in ammonia gas, the surface of the laminate is coated with a photosensitive and writable layer. An accurate copy of the pattern was obtained. Cut lines were made with a knife at the required points on the pattern, a stencil was created, and the stencil was removed.

Thereafter, the surface of the laminate was spray coated with Color Lacquer. By removing the film from the laminate after the color lacquer had dried, it was possible to obtain a precise pattern of the color lacquer on the synthetic paper. In this example, the surface of the photosensitive material is made into a fine mat shape so that the operator's eyes do not get strained when looking at the copied image, and when it becomes necessary to add another pattern to the copied image, the surface can be used with a pencil. Since it was possible to write with a pencil, additions and corrections were easy with a pencil.

[Brief explanation of drawings]

1 to 4 are cross-sectional views showing one embodiment of the synthetic resin laminate for design according to the present invention in the order of production, and FIG. 5 is a cross-sectional view showing another embodiment. 1, V...Synthetic resin laminate, 2,7...
...Top layer, 3,3...Middle layer, 4,4t...
...lower layer, 7...color printing.

Claims (1)

[Claims] 1. A copyable synthetic resin upper layer surface-treated with a composition containing a photosensitive material, a lower layer made of a synthetic resin or an inorganic material, and an intermediate layer that adheres these two layers, the intermediate layer being an adhesive surface to the lower layer. A synthetic resin laminate for design, characterized in that it can be peeled off.