JPH0120065B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a tile-like decorative material. In particular, the present invention relates to a method for manufacturing a tile-like decorative material that allows the joints of tiles to actually have a recessed shape.

When installing the actual tiles, each tile piece is
It is normal to construct the joints at intervals of ~3 mm and fill the resulting gaps with a joint material such as white cement. By performing such construction, it is possible to deal with uneven groundwork and cracks after construction. It is.

Therefore, even when manufacturing tile-like decorative materials using other materials, it is more realistic to express the joints according to this custom, so various methods are used to express the joints. It has been known. For example, a method in which a pattern is formed on a foamable thermoplastic resin sheet using an ink containing a foaming suppressor or a foaming accelerator and then foamed, or a pattern is formed with an ink containing a curing inhibitor, and then a curable paint is applied. There are two methods: a method of printing only the portions to be made into convex portions using foamable ink, and then foaming.

All of the above conventional methods result in thick decorative layers, and are particularly unsuitable for fields where paper such as tissue paper or thin plastic film is used as the base sheet.

The present invention uses a liquid repellent ink to form a tile joint pattern on a base sheet, and then coats the entire surface with a transparent paint that is repelled by the joint pattern to form a thin paper sheet. The present invention relates to a method for producing a tile-like decorative material that actually has concave portions, and is suitable for cases where paper such as the above, thin plastic film, or the like is used as a base sheet.

The present invention will be explained in detail below. First, in the present invention, any commonly used base sheet can be used for producing the tile-like decorative material. For example, tissue paper, bleached kraft paper, titanium paper, etc. , paper such as linter paper, paperboard, and gypsum board paper, polyethylene film, polypropylene film, polyvinyl chloride film, polyvinylidene chloride film, polyvinyl alcohol film, polyethylene terephthalate film,
polycarbonate film, nylon film,
Polystyrene film, ethylene vinyl acetate copolymer film, ethylene vinyl alcohol copolymer film, plastic film such as ionomer, metal foil or sheet of iron, aluminum, copper, etc., and composites of each of the above base materials can be used. . Among the above, especially for printed plywood, the basis weight is
23-35g/ ^m2 thin paper, high quality paper, thickness 50-500μ
Polyvinyl chloride film of m is preferred.

If desired, a tile-like pattern is printed on the base sheet as described above by a known printing method using ordinary ink. Typical inks include, as vehicles, cellulose derivatives such as ethyl cellulose, ethyl hydroxyethyl cellulose, cellulose acetate propionate, and cellulose acetate, styrene resins and styrene copolymer resins such as polystyrene, polyα-methylstyrene, polymethyl methacrylate, and polymethacrylate. Acrylic or methacrylic resin alone or copolymer resin, such as ethyl acid, polyethyl acrylate, butyl polyacrylate,
Rosin, rosin-modified maleic acid resin, rosin-modified phenolic resin, rosin ester resin such as polymerized rosin, polyvinyl acetate resin, coumaron resin, vinyl toluene resin, vinyl chloride resin, polyester resin, polyurethane resin, butyral resin, polyamide resin, chloride One or more types of vinyl-vinyl acetate copolymer resins are selected and used in consideration of the adhesion to the base sheet as well as the adhesion to liquid-emitting inks and transparent paints, which will be described later. Known printing methods include gravure printing, gravure offset printing, and gravure printing using an ink prepared by adding and kneading pigments, dye colorants, plasticizers, stabilizers, extender pigments, dispersants, solvents, and diluents as appropriate. Printing methods such as lithographic offset printing, die-line printing, letterpress printing, intaglio printing, jet printing, silk screen printing, and electrostatic printing can be used.

As the tile-like pattern, one that appropriately imitates the color and pattern of the tile base is used. Alternatively, solid printing in a single color may be performed to imitate a solid color tile.

As described above, after a tile-like pattern is printed on the base sheet by a known printing method using ordinary ink, if desired, a tile joint pattern is formed using a liquid-repellent ink.

Liquid-repellent inks include, for example, inks that use liquid-repellent silicone resin as a vehicle, which are obtained by adding liquid-repellent silicone oil, wax, etc. to the above-mentioned general ink vehicle ink that uses a synthetic resin as a vehicle. It is preferable to use an ink using a thermosetting resin such as an aminoalkyd resin, a polyurethane resin, a polyamide resin, or an epoxy resin as a vehicle. In particular, it is preferable to use a silicone resin alone or by adding it to a suitable vehicle.

In order to emphasize the recessed feeling of the joints of the tile-like decorative material, it is preferable that the liquid-emitting ink be darker and matte than the surrounding area, but white ink is sometimes used for the joints of the tiles. Matting is effective in such cases.

As the matte liquid-repellent ink, a known matting agent such as calcium carbonate or silica may be added to the liquid-repellent ink. The amount of matting agent added is 3 to 3 parts by weight per 100 parts by weight of the liquid-emitting ink vehicle.
It is recommended to add 5 parts by weight. If it is less than 3 parts by weight, the matting effect will not be sufficient, and if it is more than 5 parts by weight, the repellency of the transparent paint described later will be poor, which is not preferable.

The method for forming the joint pattern of tiles using the above-mentioned liquid-repellent ink can be carried out by any known printing method, but when creating a tile-like pattern, the same printing method as for creating the tile-like pattern can be used. If you do this, you can print with one printing machine, which is preferable.
Further, in order to ensure the liquid-generating effect, the plate depth of the gravure plate used is preferably 45 μm or more.

As described above, after providing a tile-like pattern as desired and forming a tile joint pattern, the entire surface is coated with a transparent paint that is repelled by the tile joint pattern to form a surface layer. As the transparent paint used for this purpose, those having a vehicle such as epoxy resin, urethane resin, aquinoalkyd resin, acrylic resin, polyester resin, etc., which are usually used for coating the surface of decorative laminates, can be used. Adding silicone resin, which is usually added for the purpose of improving the surface properties of decorative laminates, makes it difficult to repel the joint pattern of the tiles, so it is not recommended for at least the first coating, so silicone oil is not added. Epoxy resins that provide the required surface properties are preferred. The above-mentioned transparent paints can be applied using known coating methods such as gravure coating, roll coating, air knife coating, kiss coating, spray coating, continuous coating, dip coating, spinner coating,
The coating may be carried out by a method such as wheeler coating, brush coating, solid coating by silk screen, or wire bar coating, and may be coated in one coat or in multiple coats.

In addition, by adjusting the repellency between the transparent paint used in the second and subsequent applications and the joint pattern of the tiles, it is possible to paint the joint areas created by the first application without damaging the unevenness. Adding the liquid repellent component of the liquid repellent ink described above to the paint used after the first application improves wetting of the joint pattern during painting.

The transparent paint may be colored with a transparent colorant or the degree of gloss may be adjusted with a matting agent, if necessary, but the gloss of the surface layer made up of the transparent paint may be It is preferable to make the gloss higher than the gloss of the tile joint pattern formed by the color ink because it visually enhances the concave feeling of the tile joint pattern.

When the transparent paint is applied in the above manner, the paint is not applied to the parts of the tile where the joint pattern is provided due to the repulsion between the joint pattern and the transparent paint, and the part where the tile joint pattern is not provided. Since the paint is applied, selective application is possible.

Further, the step of forming the surface layer with the above-mentioned transparent paint can be carried out even after the tile-like pattern and tile joint pattern provided as desired on the base sheet, or after the tile-like pattern and tile joint pattern provided as desired on the base sheet. This may be carried out after preparing a printed sheet and pasting the printed sheet on a suitable base material.

The above base materials include paperboard: plastic board:
Wood base materials such as wood, plywood, and particle board: Gypsum base materials such as gypsum board and gypsum slag board: Fiber cement boards such as pulp cement board, asbestos cement board, and wood chip cement board, GRC and concrete: Iron, aluminum, copper A suitable adhesive may be used to attach such a base material and a printed sheet.

Since the present invention has the above-described configuration, it is possible to easily provide a tile joint pattern with a pseudo-concave feel by a printing method, and it can also be used with pre-painting or without painting. It can be pasted to the base material in its original condition and coated with a paint that gives the desired gloss and physical properties, or it can be pasted with a pre-painted sheet and repainted, both of which can be done using conventional decorative board manufacturing equipment. It can be used as is.

Furthermore, by adjusting the repellency of paint and tile joint patterns, the water resistance of the decorative material can be improved and it can be used in wet areas such as bathrooms and kitchens.

Examples are given below to further specifically illustrate the present invention.

Example 1 A colored solid printing was performed on thin paper with a basis weight of 30 g/m ² by a gravure printing method using a gravure ink using a butyral resin as a vehicle.Furthermore, 2% of silicone oil was added to the same ink as above. After printing the pattern of the joints of the tiles in a grid pattern using a liquid repellent ink using a gravure printing method using a gravure plate with a plate depth of 60 μm, epoxy paint was printed using a gravure plate with a plate depth of 130 μm. A tile-like decorative material was obtained which had concave portions at the joints and convex portions where the surfaces other than the joints were raised and flat.

Example 2 When a urethane-based transparent paint was applied to the entire surface of the tile-like decorative material obtained in Example 1 using a gravure solid plate with a depth of 45 μm, the joint areas were covered with a thin urethane film. Obtained cosmetic materials. The obtained decorative material has improved water resistance and sellotape resistance compared to the decorative material of Example 1, and when it was attached to water-resistant plywood with a urethane adhesive and used as a decorative plywood for bathroom interiors, it could be used without any problems. Ta.

Claims (1)

[Scope of Claims] 1. A tile joint pattern is formed on a base sheet using a liquid repellent ink, and then a transparent paint having the property of being repelled by the joint pattern is applied to the entire surface to form a surface layer. A method for producing a tile-like decorative material characterized by: 2. The method for producing a tile-like decorative material according to claim 1, wherein the liquid-repellent ink is matte. 3. The method for producing a tile-like decorative material according to claim 1 or 2, wherein the liquid-repellent ink is constituted by a vehicle mainly composed of a liquid-repellent silicone resin. 4. Claims 1 and 2, characterized in that the base sheet is thin paper with a basis weight of 23 to 35 g/m ²
A method for producing a tile-like decorative material according to item 1 or 3.