JPS6022020B2 - Method for manufacturing wall covering material with metallic luster - Google Patents

Description

[Detailed description of the invention] The present invention is applicable to earthen walls, gypsum boards, cement mortar, foam concrete boards, PC boards (precast concrete boards).
The present invention relates to a method for producing a material for wall coverings that exhibits a beautiful metallic luster when coated on surfaces such as the like.

Formation of metallic-toned walls has been practiced for some time, and most of the methods used have been to use metal powders such as gold powder made from pulverized yellow steel or silver powder made from pulverized aluminum.

Furthermore, even if a paint containing a pearl pigment is sometimes applied to a wall surface, a paint containing a pearl pigment is not used in which particles having a particle size of 10 to 100 mesh are coated in advance with a paint containing a pearl pigment, as in the present invention. However, wall covering materials that use this type of metal powder and have a metallic luster have a disadvantage that they eventually lose their metallic luster because of their poor chemical resistance to alkalis, acids, and the like.

The present inventors have studied materials for wall coverings that can be finished in a metallic luster color tone without using metal powders as described above, and as a result, have arrived at the present invention.

That is, the present invention uses pre-colored wood powder granules of 10 to 100 mesh as the main material, and produces a pearl pigment synthetic resin emulsion of 1 to 100 particles per surface area obtained from the specific gravity and average particle size of this main material. This is a method for producing a material for wall covering material obtained by coating the surface of the main material using a liquid to which is added as a binder.

However, wall covering materials using the coating material obtained by the method of the present invention have strong alkali and acid resistance properties, and have a gloss similar to that made using metal powder, while also being suitable as wall bag materials. It can maintain an elegant luster.

In producing the wall bag material of the present invention, wood flour is used as the main material.

The appropriate particle size is about 10 to 100 mesh. As mentioned above, the present invention consists of using pre-colored wood powder granules, but for reference, the coloring method is described below for the wood powder granules material having a particle size suitable for carrying out the present invention. Add a coloring liquid made by mixing an effective amount of a synthetic resin emulsion as a binder, a melamine resin, or a mixture of both, water and an extender pigment so that the coloring pigment can be colored in any desired color tone, and mix well. After kneading, it is dried to prepare colored granules. Next, the surface area is calculated from the average particle diameter obtained from the specific gravity and particle size distribution of the granules using a simple formula [6/(specific gravity x average particle diameter)].
A liquid containing 0.00 parts by weight of a synthetic resin emulsion as a binder is added to the pre-colored granules, kneaded well, and dried to obtain a material for coating materials that exhibits a metallic luster. In order to obtain a wall material exhibiting a metallic luster using the thus obtained wall covering material of the present invention, 1 to 15 parts by weight of a synthetic glue such as carboxymethyl cellulose is added to the wall covering material. After adding and mixing thoroughly, add 10 to 5 parts by weight of a synthetic resin emulsion such as vinyl acetate emulsion as an adhesive to 10 parts by weight of water.
A liquid is prepared in which 0 to 60 parts by weight of the pigment is dispersed, and this is mixed to moisten the colored powder to create a wall covering that is suitable for bell painting and can also produce a metallic luster.

The synthetic resin emulsion used as a binder for pearl pigments in the present invention may be either aqueous or solvent-based, but solvent-based emulsions using organic solvents pose risks of environmental pollution due to toxicity and fires due to ignition. Water-based synthetic resin emulsions are preferable because they require high operating costs for complete recovery equipment and complete combustion equipment for prevention, and are sterile agents.

As such a synthetic resin emulsion, it is preferable to use one that is used as an adhesive or a raw material for a paint, etc. After the pearl pigment is spread on the surface of the granular material, it remains sticky.
Synthetic resin emulsions for adhesives, in which granules form blocks with each other, are not suitable for use as wall covering materials.
It is also undesirable to use paints that discolor due to the effects of ultraviolet rays or air oxidation after being painted on the wall.

Synthetic resin emulsions used as raw materials for adhesives or paints include emulsions such as vinyl acetate resin, ethylene-pinyl acetate copolymer resin, vinyl acetate-acrylic copolymer resin, acrylic ester resin, and styrene-acrylic copolymer resin. As the acrylic emulsion, an acrylic copolymer resin emulsion obtained by appropriately blending acrylic acid or methacrylic acid and their esters may be used.

Further, as the pearl pigment, a natural pearl essence obtained by finely pulverizing fish scales may be used, or a synthetic pearl pigment such as basic lead carbonate, bismuth trichloride, or mica coated with a titanium oxide thin film may be used.

Therefore, the coating material made using the material for coating material obtained by the method of the present invention can be used for cement mortar walls, gypsum plaster, etc.
Earthen walls, gypsum boards, PC boards, foam concrete boards (AL
It can be applied to a variety of substrates such as C board), plywood, etc., and can be used in hot environments where sulfur dioxide gas is likely to be generated, and in areas with severe air pollution. It can also be used in areas where gloss may be lost.

The present invention will be explained in more detail with reference to Examples below.

Examples 16-24 mesh 20% 24-48 mesh 60%
Wood flour made of 20% of 48-100 mesh is coated with a mixture of acrylic copolymer resin emulsion made of methyl tacrylate, ethyl acrylate, and 2-ethylhexyl acrylate, melamine resin, powdered calcium carbonate, and phthalocyanine green to create a green color. 100 parts by weight of this green wood flour (approximately 14 parts by weight with a surface area of
) in a container, and while bowing, add basic lead carbonate, 70
50 consisting of methyl methacrylate, ethyl acrylate, and 2-ethylhexyl acrylate with the addition of parts by weight of
% concentration of an acrylic copolymer resin emulsion was gradually added, the mixture was taken out in a uniformly mixed state, and dried to obtain a coating material.

Then, to 100 parts by weight of this material, 10 parts by weight of carboxymethyl cellulose, 400 parts by weight of 50% concentration ethylene-acetate pinylemulsion, and 6000 parts by weight of water were added to make a wall rhombus material, which was then applied to the wall using an eel. Paint and
When dried, a painted surface with a beautiful green metallic luster was obtained.

Claims (1)

[Claims] 1 Pre-colored wood flour granules with a particle size of 10 to 100 mesh are used as the main material, and 1 to 100 g/surface area of the main material is used.
The surface of the main material is coated with a liquid obtained by adding a synthetic resin emulsion, which is used as an adhesive or paint raw material, to a pearl pigment of m^2 as a binder. A manufacturing method for wall covering materials.