JPS62116146A - Decorative sheet - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a decorative sheet having an embossed pattern on its surface, which is used for walls, ceilings, etc. of buildings.

Conventionally, the method of expressing a three-dimensional pattern on the surface of a decorative sheet has been to emboss it using a molded roll or plate. In this method, the stamping roll or plate itself is expensive, requires incidental equipment, and complicates the work process, resulting in lower workability and productivity and higher costs. In addition, the unevenness formed by embossing is small and does not change easily, and the base sheet used to form it by pressing may be torn, or the recesses may appear convex on the back surface. When pasted on a ceiling surface, there were problems such as the adhesive seeping out from the torn places, contaminating the surface, causing the concave parts to collapse, and the adhesion of the convex parts to be poor.

In order to solve such problems in forming a three-dimensional pattern by embossing, a method of expressing a three-dimensional pattern using a screen printing method has been proposed.

The screen printing method allows printing with raised patterns by increasing the amount of printing ink transferred, and was used as a method of expressing three-dimensional patterns on decorative materials. However, it is actually difficult to make the color tone of the pattern itself rich in variation.
The three-dimensional patterns that are printed have to be monotonous. In order to overcome the monotony of this screen printing pattern, after forming a three-dimensional pattern by screen printing, a pattern corresponding to the pattern is printed using normal printing methods (gravure printing,
A method of manufacturing a decorative material having a variable surface by forming it by offset printing, etc. has been proposed. (Special Publication in 1972) However, the following problems still remain in the manufacturing method.

- After the three-dimensional pattern is formed, the pattern is formed using a normal printing method, so the three-dimensional pattern is crushed or worn during printing, resulting in a poor three-dimensional effect.

■ Since the normal printing method itself requires precision (smoothness) on the surface of the printing material, the height of the convex parts of the three-dimensional pattern is uneven, and it is actually difficult to print on the three-dimensional pattern after it is formed. be.

■ Although it is possible to print in a non-uniform state and form a pattern in a part, the pattern itself will look mottled and the design effect will be reduced.

■ After forming a three-dimensional pattern, it may be possible to polish the convex mold to make a smooth surface for printing, but the three-dimensional pattern will become smaller and the design effect will be reduced, and the workability and process will be complicated, increasing costs. At the same time, work efficiency and productivity are reduced.

The present invention solves the problems of these conventional methods and makes it possible to easily express an elegant embossed pattern by effectively utilizing a three-dimensional pattern produced by screen printing.

The gist of the present invention is to form a pattern (2) by printing on the surface of a base sheet Tll which has been colored as necessary, and further to form a pattern (2) on the base sheet 1 on which the pattern (2) has been formed. It exists in a decorative sheet in which a transparent convex pattern 6 is formed in a pattern by screen printing or gravure printing using a transparent paint.

[Explanation of Examples]

(2) Figure 1 shows a case where the decorative sheet a of the present invention is laminated on a substrate 3 such as plywood or fiberboard. 4 is an adhesive layer between the decorative sheet of the present invention and the substrate 3;

Reference numeral 1 denotes a base material sheet, and the base material sheet 1 is a sheet-like material such as paper, cloth, resin sheet, metal foil, etc., and a pattern 2 is formed by arbitrary decoration such as gravure, offset, or gravure offset printing, or the sheet 1 itself is formed. It is colored or has an uneven pattern formed by embossing.

A transparent convex pattern 6 is formed on the base sheet 1 by screen printing or gravure printing using a transparent paint.

In addition, 5a is a transparent material obtained by applying a transparent or semi-transparent paint to the entire surface of the transparent convex pattern 6 after drying or in an undried state using a coating device such as a roll coater or flow coater, and then drying the surface. Or a semi-transparent protective layer.

The present invention is a division of Japanese Patent Application No. 54-132.420, but the invention of this original application is based on the base sheet l being divided into three substrates.
A transparent convex pattern 6 is formed on the base sheet 1 after it is laminated and adhered to the base sheet 1. In this way, the base sheet 1 is prevented from being wrinkled.

The present invention is directed to a decorative sheet a in which a transparent convex pattern 6, which is the premise of the invention of the original application, is formed on a base sheet 1 in advance. That is, in the original application, in the present invention, when the decorative sheet a is attached directly onto the substrate 3, wrinkles are improved, whereas the present invention has an advantage in that the decorative sheet a can be separated and transported. It is something.

(2) Fig. 2 shows a second embodiment of the decorative sheet a of the present invention, in which a protective layer 5b is formed on the surface of the base sheet 1, and then a transparent convex pattern 6 is formed by screen printing or gravure printing. By doing so, the pattern 2 can maintain its sharpness for a long time.

Similar to the protective layer 5a, the protective layer 5b is a transparent or semi-transparent paint obtained by applying a transparent or semi-transparent paint to the metal surface of the base sheet 1 using a roll coater, flow coater, etc., and then drying it. It is a transparent film membrane.

(2) FIG. 3 similarly shows a third embodiment, in which the protective layer 5b of the second embodiment and the protective layer 5a of the first embodiment are both provided.

■ A matting agent (
Commonly used materials such as silica powder, diatomaceous earth, and clay may be used.) Matte transparent paints may also be used.
The transparent convex pattern 6 may be formed in synchronization with the pattern 2 formed on the surface of the decorative sheet a, or may be formed without synchronization.

■ The pattern 2 can be seen through the transparent coating film forming the transparent convex pattern 6 formed thereon, and due to the phenomenon of light refraction, the pattern 2 in that part stands out compared to other parts. It looks solid, and the color tone itself is expressed in a light tone, creating a three-dimensional pattern that has not been seen in the past, improving the design effect.

The resin, viscosity, etc. of the transparent paint forming the transparent convex pattern 6 may be determined by taking into account the printing method, the thickness and height of the coating film of the pattern, etc., and the transparent paint may be arbitrarily colored. It is also possible to form a colored transparent convex pattern 6 so as to bring about a change in color tone.

Effects of the present invention: (a) Cosmetic sheet) Since the transparent convex pattern 6 is formed on a, the decorative pattern 2a can be seen through the transparent convex pattern 6 and seen. It is also expressed faintly and magnificently. (Fig. 3) On the other hand, the decorative pattern 2b on the surface other than the transparent convex pattern 6
Since the patterns 2a and 2b do not stand out and appear to be visible, the patterns 2a and 2b contrast and give a sense of change.

(b) Decorative sheet of the present invention) Since the decorative sheet a is independently attached to the substrate 3, it has the advantage that only the decorative sheet a can be rolled up and transported all at once.

Example: Pattern #II on the surface of decorative sheet a with pattern 2 printed on the surface! A transparent convex pattern 6 is formed using a screen printing device using a transparent water-based acrylic resin screen printing ink in synchronization with the pattern 2.

Furthermore, a urethane resin-based transparent top coat of 30 g/m'' was applied to the entire surface using flow coke, and then dried in a hot air dryer at 60-120°C for 10 minutes to form a makeup with an embossed pattern on the surface. I got plywood.

[Brief explanation of drawings]

1 to 3 are partial sectional views showing an embodiment of the decorative sheet according to the present invention, and FIG. 4 is an explanatory view of the function. l... Base material, 2... Pattern, 3... Substrate, 4... Adhesive, 5a, 5b... Protection Layer 6... Decorative sheet of the present invention.

Claims (1)

[Claims] [1] A pattern (2) is printed on the surface of the base sheet (1), and the base sheet (1) has the pattern (2) printed thereon.
A decorative sheet characterized in that a transparent convex pattern (6) made of transparent paint is formed on the top thereof. (2) Base sheet colored as necessary (1)
A pattern (2) is formed by printing on the surface of, and further,
A transparent convex pattern (6) is formed on the base sheet (1) on which the pattern (2) is formed by screen printing or gravure printing using a transparent paint.
Cosmetic sheet. (3) The decorative sheet according to claim 2, wherein a protective layer (5a) made of a transparent paint is formed on the entire surface of the base sheet before forming the transparent convex pattern (6). (4) The decorative sheet according to claim 1, wherein a protective layer (5a) of transparent paint is formed on the entire surface of the base sheet (1) on the surface of the transparent convex pattern (6). (5) The decorative sheet according to claim 1, which uses a matte paint in which a matting agent is added to the transparent paint forming the transparent convex pattern (6).