JPH0529294Y2 - - Google Patents

Description

[Detailed explanation of the idea]

Purpose of invention

[Industrial application field]

The present invention relates to an improvement of a gypsum board with a tile-like surface suitable as a wall material.

[Conventional technology]

When attempting to manufacture a gypsum board with a tile-like surface for use as a wall material, conventionally, paper or plastic film printed with a tile pattern is attached to the gypsum board. However,
Paper is not water-resistant and easily peels off, while plastic film stretches, causing tile patterns to shift. In any case, normal printing does not give the impression of unevenness between the tiles and the joints.

[Problem that the invention attempts to solve]

The purpose of this invention is to improve the above-mentioned drawbacks of the conventional tile-like gypsum board, to have an uneven feel between the tiles and the joints, to minimize pattern misalignment, and to have excellent surface properties such as water resistance. The purpose is to provide a tile-like gypsum board with a high degree of design. Structure of the idea

[Means to solve the problem]

To explain with reference to the drawings, the tile-like gypsum board of the present invention, as shown in FIG. A tile-like decorative sheet 1 is laminated to a gypsum board 2 to express tiles by further providing a matte printing layer 14 at a portion corresponding to the joint of tiling. If desired, as shown in FIG. 2, a base sheet 11 having a printed layer 12 with a tile-like pattern is used. The thickness of the polyvinyl chloride base sheet is 50~
200μ, plasticizer 20PHR or less, gross value 75 or more, preferably thickness 70-150μ, plasticizer 15PHR or less,
Use a material with a gross value of 90 or higher. If a hard sheet with a low plasticizer content is used, the decorative sheet will have less elongation and the pattern will be less likely to shift. As the transparent curable synthetic resin, resins such as polyester (meth)acrylate, polyurethane (meth)acrylate, epoxy (meth)acrylate, unsaturated polyester resin, diallyl phthalate, etc. can be used. This resin layer is uniformly applied onto the base sheet 11 by any means such as gravure coating, and is formed to have a glossy surface. Curing may be performed using known techniques depending on each resin. When printing a tile-like pattern, it may be carried out by gravure or any other arbitrary method using ordinary printing ink. Matting ink is prepared by using a curable synthetic resin as a vehicle and blending it with a matting agent, a solvent, and in some cases, a pigment. The curable synthetic resin is selected from among aminoalkyd resins, urethane resins, acrylic urethane resins, polyester resins, phenolic resins, melamine resins, and the like. As the matting agent, powders such as pigments, calcium carbonate, magnesium carbonate, barium sulfate, and silica are used. Silica-based fillers are optimal. The matte printing layer is formed by printing using the above-mentioned ink composition by gravure or any other arbitrary method. In this case, the matte printing layer may be colored with a different color from the tile color or the same color but with a different density by selecting a pigment, or may be made transparent without using any pigment. Gypsum board that is commonly used in the manufacture of building materials may be used. The tile-like decorative sheet may be attached to the gypsum board using a commonly used adhesive.

[Effect]

The part corresponding to the tile of the decorative sheet is represented by a transparent and glossy surface made of hardening synthetic resin.
By using matte printing to represent the portions corresponding to the joints of the tiles, the joints appear recessed and the feel of the tiles is better expressed. The layer of transparent hardening synthetic resin that covers the surface improves surface properties such as water resistance, and also minimizes elongation when the tile-like decorative sheet is attached to plasterboard.

[Example 1] A urethane-based transparent hardening synthetic resin was placed on a white polyvinyl chloride sheet "W37710" (Bando Chemical) with a thickness of 70μ, a plasticizer of 10PHR, and a gloss value of 92 (measured using a 75° Gardoner gloss meter). The paint (100 parts by weight of main agent, 15 parts by weight of curing agent) was gravure coated using a gravure plate with a plate depth of 45 μm. On top of that, using black matte ink (100 parts by weight of base agent, 15 parts by weight of hardening agent), gravure printing was performed in a grid pattern on the parts corresponding to the joints of the tiles, so that the tile parts were glossy white and the joints were A tile-like decorative sheet with black recesses visible was obtained. This sheet was attached to a plasterboard to obtain a tile-like plasterboard.

[Example 2] White polyvinyl chloride sheet "UT-8" (RIKEN VINYL) with a thickness of 100μ, a plasticizer of 8PHR, and a gloss value of 94
A tile-like pattern was printed on the surface by gravure printing using ink containing polyvinyl chloride and acrylic resin as a vehicle. On top of that, urethane-based transparent hardening synthetic resin paint (100 parts by weight of main agent, 15 parts by weight of hardening agent) is applied to the depth of the plate.
It was gravure coated using a 45μ gravure plate and cured. Furthermore, on top of that, brown matte ink (main agent
(100 parts by weight and 15 parts by weight of curing agent), the portions corresponding to the joints of the tiles were gravure printed in a grid pattern. In this way, a tile-like decorative sheet was obtained in which the tiles appeared to be convex portions and the joints appeared to be concave portions. This sheet was attached to a plasterboard to obtain a tile-like plasterboard. Effects of the invention Compared to conventional products, the tile-like gypsum board of this invention has a concave feeling at the joints, and therefore the tile part feels like a convex part, and has a high design quality that is similar to actual tiles. It is. The decorative sheet of this gypsum board has excellent surface properties such as water resistance. In addition, it is possible to minimize the misalignment of the tile pattern, with the misalignment being within 2 mm on walls with a height of 8 shaku, which is standard for Japanese homes.

[Brief explanation of the drawing]

FIG. 1 is a schematic cross-sectional view showing the basic structure of the tile-like gypsum board of the present invention. FIG. 2 is a sectional view similar to FIG. 1, showing a modified configuration. 1...Tile-like decorative sheet, 11...Base material sheet, 12...Tile-like pattern printed layer, 13...
Layer of transparent hardening type synthetic resin, 14... Matte printing layer, 2... Gypsum board.

Claims (1)

[Claims for Utility Model Registration] (1) A transparent curable synthetic resin layer 13 is provided on a polyvinyl chloride base sheet 11 so that the surface has a glossy surface, and is further provided in areas corresponding to the joints of tiling. Tile-like decorative sheet 1 that expresses tiles by providing a matte printing layer 14
This is a tile-like gypsum board constructed by laminating the above onto a gypsum board 2. (2) A tile-like gypsum board according to claim 1, which uses a base sheet 11 having a printed layer 12 with a tile-like pattern. (3) The tile-like gypsum board according to claim 1 or 2, wherein the matte printing layer 14 is colored in a color different from the color of the tiles on which it is expressed. (4) The tile-like gypsum board according to claim 1 or 2, wherein the matte printing layer 14 is transparent.