JPS5819636B2 - Manufacturing method for decorative architectural boards - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing decorative architectural boards,
More specifically, the present invention relates to a method for producing an inorganic-organic porous composite having a pattern in which a coloring agent has penetrated into the porous interior.

In recent years, various non-combustible or flame-retardant materials have been developed and proposed for use in construction with enhanced non-combustibility or flame retardancy. The quality complex is known.

This material combines the advantages of an inorganic substance and an organic polymer compound, and is highly expected to be used as a non-flammable or flame-retardant material in construction materials.

In order to utilize such complexes, their surfaces are painted to enhance their decorative effect and increase their utility value.

Conventionally, a simple thermal transfer method, a direct printing method, or a kneading method has been used to decorate such composites.

However, in the case of transfer methods or direct printing methods, it is extremely difficult to print on the composite material itself, and even if a pattern is formed on the composite material, it will not have the depth that natural materials have. Furthermore, even in the case of the kneading method, it is difficult to predict the finish, and there are disadvantages such as the inability to obtain pattern reproducibility.Neither of these are suitable for industrial production, and are not fully satisfactory. isn't it.

As a result of various studies aimed at solving the above-mentioned drawbacks, the present inventors have found that a porous inorganic plate can be coated with an arbitrary pattern layer made of a composition containing a binder and a melting or sublimating colorant as main components. The pattern layer is transferred and painted using a transfer sheet with heat and pressure in a vacuum, and an organic polymer compound is applied inside the porous material, allowing operation at relatively low temperatures. The present invention was completed by discovering that scales can be produced by manufacturing a decorative architectural board with a pattern that penetrates deep into the porous interior.

That is, in the present invention, a transfer sheet having an arbitrary pattern layer made of a composition mainly composed of a binder and a melting or sublimable colorant is superimposed so that the surface of the pattern layer is in contact with the porous inorganic surface. The method is characterized in that the transfer sheet is laminated, heated and pressurized in a vacuum, then depressurized and cooled to peel off the transfer sheet from the porous inorganic plate, the porous inorganic plate is impregnated with a polymer solution, and then dried. This is a method for manufacturing decorative architectural boards.

The above invention will be explained in more detail below.

First, in the present invention, as the porous inorganic board, a gypsum board, a magnesium carbonate board, a calcium carbonate board, an asbestos perlite board, an asbestos cement board, a foamed concrete board, an asbestos lax board, etc. can be used.

Also, composite materials of the above materials mixed with pulp synthetic fibers, glass fibers, metal fibers, carbon fibers, etc. for reinforcement of each material,
Wood wool cement boards, gypsum boards, pulp cement boards, etc. can be used.

In the present invention, the surface of the above-mentioned porous inorganic plate, a binder, and a melting or sublimating coloring agent are mixed as main components in a vacuum system of 200 Torr or less, preferably 160 Torr or less, adjusted by means such as a vacuum pump. The surface of the pattern layer of a transfer sheet having an arbitrary pattern layer made of a composition is placed so that they are in contact with each other, and the two are transferred as they are.
Heat the top surface of the photo sheet to approximately 150°C to 220°C,
On the other hand, the bottom surface of the porous inorganic plate is not heated, or it is sandwiched between press plates of a press machine so as to be heated to an appropriate temperature as necessary.

Approximately 5 to 30 at a pressure of about 50g/crI to 1-5/7
After that, the press plate is depressurized and cooled, the porous inorganic plate and the transfer sheet are superimposed, the gills are taken out, and the transfer sheet is then peeled off from the porous inorganic force to finish the painting. Let's do it.

: To explain the above transfer sheet in more detail, the transfer sheet mainly contains a binder and a melting or sublimating colorant, and if necessary, various known additives are added, and a solvent is added. , mixed with a diluent, etc., and kneaded to produce an ink composition.

Then, using the ink composition obtained above on any base sheet, for example, gravure printing, offset printing,
Any pattern can be printed or drawn in a single color or in multiple colors using ordinary printing methods such as letterpress printing and silk screen printing, or ordinary drawing methods, to form an arbitrary pattern layer. :jJ can do it.

In the above, as the melting or sublimating coloring agent, known ones such as disperse dyes and oil-soluble dyes can be used. Specifically, Sudan ■ Sudan G1
Miketon Polyester Yellow GF1 Sudan Brown, Sudan Blue ■, Malachite Green, Astra Green Base, Sudan ■, Resolin Lend FB, Resolin Blue RRL1 Miketon First Yellow G1
Miketon Fast Violet BB1 Sumikaron 1
Yellow 601 Sumikaron Yellow GR8, Dianix Fast Orange R-FSM/D, Artsil Scarlet GFL, Fuoron Red PL, Nigrosine, Para Blue, Dyctoria Blue 4R, Astra Blue Base, Sudan Red L], 5' Dehydroxy-4 , S-steryl aminoanthraquinone, Seriton Blue G1 Seriton Fast Yellow RR, Resolin Blue FBL, Rachile Yellow-3G, Rachile Violet 2R, Dranol Paiolene) 2R, Arteisil Yellow RGFL, Acetoquinone Lend RLM
, etc. can be used.

In the present invention, the preferred temperature range of the melting temperature or sublimation temperature of the colorant as described above is about 120°C to 22°C at room temperature.
0° C., and the sublimation half-life is preferably 5 to 30 f/IQ within this temperature range.

Next, in the above, it is necessary to use a binder that acts as a binder even at a temperature higher than the melting point or sublimation temperature of the colorant, and it is necessary to use a binder that acts as a binder even at a temperature higher than the melting point or sublimation temperature of the colorant. I don't like those who give.

As the above-mentioned binder, specifically, for example, resins such as vinyl chloride resin, polyvinyl alcohol, polyvinyl acetal, acrylic resin, cellulose derivative, polycarbonate, polyamide, and polyester can be used.

Furthermore, in the above, known additives such as various plasticizers, waxes, greases, desiccants, auxiliary desiccants, surfactants, fillers, and the like can be used.

Furthermore, as the base sheet in the above, known ones,
For example, various papers and processed papers, synthetic resin films or sheets, metal foils such as aluminum foil, or laminations made by laminating these materials.
Film, etc. can be used.

After painting the porous inorganic board by the above method, the porous inorganic board is impregnated with a polymer solution and then dried to produce a decorative architectural board in which the colorant penetrates into the porous interior.

In the above, the polymers include, for example, the following heptamers alone or copolymerized with other monomers, specifically, vinyl chloride and vinylidene chloride resins, vinyl acetate resins, polyolefin resins such as polyethylene or polypropylene, Polystyrene resin, acrylic resin, polyvinyl alcohol, polyvinyl acetal, styrene and acrylonitrile copolymer and ABS resin,
Thermoplastic or thermosetting resins such as polyamide resins, unsaturated polyester resins, epoxy resins, phenolic resins, amino resins, etc. can be used,
The polymers can be used alone or in mixtures of two or more.

The monomers mentioned above include, for example, styrene and its derivatives, vinylidene chloride, vinylpyridine, unsaturated carboxylic acids such as acrylic acid, methacrylic acid, itaconic acid, maleic acid, or fumaric acid, or such acids such as methyl, ethyl , propyl or butyl ester derivatives, nitrile derivatives, acid amide derivatives, hydroxyethyl acrylate or methacrylate, hydroxypropyl acrylate or methacrylate, vinyl acetate, allyl alcohol.

and monomers such as allyl ester, methyl vinyl ketone, acrolein, and vinyl carbazole.

When the monomer or prepolymer is a liquid, it can be directly impregnated into a painted porous inorganic plate, or when it is other than a liquid.

Even if it is a liquid, it can be made into a solution and impregnated if necessary.

The above polymer is impregnated in solution.

Here, the solvent used is selected from those capable of dissolving the above polymer, such as ketones and esters.

Examples include hydrocarbons, aromatics, halogenated hydrocarbons, dimethylformamide, and tetrahydrofuran.

After impregnation with the polymer solution, further drying is performed. The decorative architectural boards produced in this way can be used as is, but if necessary.

For example, the surface can be made of urethane-bound vinyl chloride and vinylidene chloride resins, vinyl acetate resins, polyolefin resins such as polyethylene or polypropylene, polystyrene resins, acrylic resins, polyvinyl alcohol, polyvinyl acetal, etc.

The surface can also be protected by top coating with a resin such as styrene and acrylonyl-IJ copolymer, ABS resin, polyamide resin, unsaturated polyester resin, epoxy resin, phenol resin, or amine resin.

As is clear from the above description, the present invention uses a transfer sheet having an arbitrary pattern layer on a porous inorganic plate made of a composition containing a binder and a melting or sublimating colorant as main components. A decorative architectural board having a pattern in which the coloring agent penetrates into the porous interior by transferring the pattern layer under vacuum and applying pressure, and then applying an organic polymer compound to the porous interior. This is a method of manufacturing.

In the present invention, a melting or sublimation coloring agent is used, and since the coloring agent is transferred in a vacuum, the coloring agent penetrates deep into the porous interior.Also, since the organic polymer compound is applied, the coloring agent is transferred deep into the porous interior. It will further penetrate and become established in the future.

Therefore, the decorative architectural board produced by the method of the present invention has depth and does not impair the texture of the material.

In addition, the method of the present invention has extremely good pattern reproducibility, and the same pattern can be obtained at will, so it is a method suitable for industrial production. Boards can be widely used for various architectural purposes, including ceiling materials and wall materials.

Next, the present invention will be explained in more detail with reference to Examples.

Note that "parts" in the examples represent "parts by weight."

Example 15 parts of Sudan G, 78 parts of ethyl cellulose N, and 23 parts of a turpine-butanol mixture (1:1) were thoroughly mixed and kneaded to prepare an ink composition, and then the ink composition was used to prepare top coated paper. An abstract pattern was printed on it using a gravure printing method to obtain a transfer sheet.

Next, in a vacuum system of about 80 Torr, the pattern layer of this transfer sheet is placed on top of the surface of the gypsum board so that it is in contact with the surface of the gypsum board, and while both are kept as they are, the temperature of the press plate on the side of the transfer sheet is set to 200 Torr. ℃, and the press plate on the gypsum plate side is placed between the press plates of the press machine without heating, and the pressure is about IK.
The transfer sheet was held for about 20 seconds under heat and pressure of g,/7 or less, and then the press was removed, and the transfer sheet was then peeled off from the plasterboard and painted.

Next, acrylic resin (
The board was impregnated with a solution of 15 methyl ethyl ketone (Hytaloid 1007, manufactured by Hitachi Chemical), and then air-dried at room temperature to obtain a decorative architectural board.

Furthermore, the surface of the product is polished as necessary to make the surface smooth.

The decorative architectural board manufactured in this way had the coloring agent penetrate into the porous interior, and was further penetrated and fixed by the organic polymer compound, giving the product depth and being extremely practical. .

Claims (1)

[Claims] 1 Transfer sheets having an arbitrary pattern layer made of a composition containing a binder and a melting or sublimable coloring agent as main components are stacked so that the surface of the pattern layer is in contact with the surface of the porous inorganic plate, and the transfer sheet is heated in a vacuum. Production of a decorative architectural board, characterized in that the transfer sheet is peeled off from the porous inorganic board by heating and pressurizing, then cooling by removing pressure, and then impregnating the porous inorganic board with a polymer solution, followed by drying. Law.