JPS6022021B2 - 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.

In the past, it has been possible to form walls with a metallic tone, and most of the methods used to do this were to use metal powders such as gold powder made from pulverized brass or the like, or silver powder made from pulverized aluminum or the like.

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 granules 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 in that they lose their metallic luster because of their poor chemical resistance to alkalis, acids, and the like.

The present inventor has studied a material for wall coverings that can be finished in a metallic luster color tone without using the above-mentioned metal powder, and as a result, has arrived at the present invention.

That is, the present invention uses pre-colored pulverized granules of synthetic resin with a particle size of 10 to 100 mesh as the main material, and has a particle size of 1 to 100 m/s 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 obtained by adding a synthetic resin emulsion as a binder to the pearl pigment.

Therefore, the wall bag material using the wall covering material obtained by the method of the present invention not only has strong alkali resistance and acid resistance properties, but also has a gloss similar to that obtained using metal powder and can be used as a wall covering material. This allows it to retain its elegant luster.

In producing the wall covering material of the present invention, pulverized granules of synthetic resin are used as the main material.

That is, the pulverized granules of synthetic resins include pulverized granules of thermosetting resin cured products of unsaturated polyester resins, urea resins, or phenolic resins, alone or in combination, or
Examples include pulverized granules of thermoplastic resins such as polyvinyl chloride, polyethylene, and polypropylene containing 0 to 8% by weight of inorganic fillers, and the appropriate particle size is about 10 to 100 mesh.

In addition, if the particle surface is too rough or the particle size distribution is too narrow, the particle surface area will increase and a large amount of pearl pigment and synthetic resin emulsion as a binder will be required, making it uneconomical. It is.

Therefore, it is preferable that the particle surface is relatively smooth and the average grain size is 48 mesh or more.

In addition, it does not matter if this granular material is porous or hollow, but when it is mixed with water and synthetic resin emulsion to be coated with a trowel as a wall bag material for the final purpose, the strength weakens due to mixed water and collapses. Particles with low water resistance and compressive strength that easily break under the pressure of the trowel are not preferred. As mentioned above, the present invention consists of using pre-colored pulverized granules of synthetic resin, but for reference, the coloring method is as follows: After adding a coloring liquid made by mixing an effective amount of synthetic resin emulsion, melamine resin, etc., or a mixture of both, water, extender pigments, and coloring pigments so as to produce any desired color tone, and kneading thoroughly. , and dry 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 100 to 100 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 wall coverings that exhibits a metallic luster. It is.

In order to obtain a wall material exhibiting a metallic luster using the thus obtained material for a wall bag material of the present invention, a synthetic glue such as carboxymethylcellulose 1 to 1
After adding 5 parts by weight and mixing well, add 1 part of a synthetic resin emulsion such as vinyl acetate emulsion as an adhesive.
0 to 5 parts by weight are previously dispersed in 100 to 60 parts by weight of water to prepare a liquid, and this is mixed to moisten the colored powder and granules, and the wall covering can be passed through the eel lacquering process and can also produce a metallic luster. It can be used as a material.

In the present invention, the synthetic resin emulsion used as a binder for pearl pigments may be either aqueous or solvent-based, but solvent-based emulsions using organic solvents pose a risk of environmental pollution due to toxicity and fires due to ignition. Furthermore, from the point of view that operating costs for complete recovery equipment and complete combustion equipment for preventing these problems are high and uneconomical, aqueous synthetic resin emulsions are preferred.

As such a synthetic resin emulsion, it is preferable to use one that is used as an adhesive or a raw material for paint, etc. After the pearl pigment is spread on the surface of the granular material, it remains sticky.
Synthetic resin emulsions for adhesives, where granules form blocks with each other, are not suitable for use as paint 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 pinyl acetate resin, ethylene-vinyl acetate copolymer resin, vinyl acetate-acrylic copolymer resin, acrylate 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, wall covering materials made using the wall covering material obtained by the method of the present invention can be used for cement mortar walls, gypsum plaster,
wall, gypsum board, PC board, foam concrete board (AL
It can be applied to a variety of substrates such as C board) and plywood, and it can be applied to a variety of substrates, such as hot springs where sulfur dioxide gas is easily generated and places with severe air pollution. It can also be used in places where there is a risk of loss.

In the present invention, the inorganic filler used to obtain the pulverized granules of thermoplastic resin is preferably calcium carbonate, talc, clay, etc., and the amount used is 40 to 8% by weight in the pulverized granules of thermoplastic resin. % is appropriate.

This is because if it is less than 4% by weight, it is difficult to crush it into granules and coat it during coloring, and if it is more than 8% by weight, the strength of the granules will decrease, which is undesirable. The present invention will be explained in more detail with reference to Examples below.

Example 1 Unsaturated polyester resin granules ground to 20 to 80 mesh were surface coated with a mixture consisting of styrene-acrylate copolymer resin emulsion, fine clay, and yellow iron oxide to obtain yellow plastic granules. 100 parts by weight of this yellow plastic granule (surface area approximately 8
To the solution obtained by adding 16 parts by weight of golden-colored titanium oxide thin film coating mica to 35 parts by weight of a styrene-acrylic acid ester copolymer resin emulsion with an agricultural degree of 5, the solution obtained was added to After mixing, take out the
A wall covering material was obtained by drying with hot air.

Thereafter, to 100 parts by weight of this material, 5 parts by weight of carboxymethyl cellulose, 300 parts by weight of a 45% concentration acrylic acid ester copolymer resin emulsion, butyl carbitol acetate as an abdominal formation aid, and 250 parts by weight of water were added. When used as wall covering material and painted on the wall using a mirror, a beautiful, water-resistant, gold-colored painted surface was obtained.

Example 2 20-48 mesh 70%, 48% obtained by crushing a molded product consisting of 4% by weight of military calcium carbonate as an inorganic filler and 6% by weight of vinyl chloride resin containing a plasticizer
Granules containing 30% ~100 mesh were surface coated with a blend of pinyl acetate resin emulsion, talc, and brown iron oxide to obtain reddish-brown granules.

A liquid obtained by adding 5 parts by weight of mica coated with a golden yellow titanium oxide thin film to 100 parts by weight of the granules (with a surface area of about 45) to 10 parts by weight of a 50% concentration ethylene-vinyl acetate resin emulsion was obtained. After the mixture was added and mixed uniformly, it was taken out and dried to obtain a wall covering material.

Thereafter, to 100 parts by weight of this material, 3 parts by weight of carboxymethyl cellulose, 100 parts by weight of pinylacetate-acrylic acid ester copolymer resin emulsion, and 150 parts by weight of water were added to make a wall covering material, and this was applied to the wall using a mirror. When painted, a beautiful painted surface with a metallic copper-like luster was obtained.

Claims (1)

[Scope of Claims] 1. The main material is pre-colored pulverized synthetic resin granules with a particle size of 10 to 100 mesh, and 1 to 1 per surface area of the main material.
The surface of the main material is coated with a liquid obtained by adding 00 g/m^2 of pearl pigment and a synthetic resin emulsion used as a raw material for adhesives or paints as a binder. A method for producing a glossy wall covering material. 2. The method according to claim 1, characterized in that as the pulverized granules of synthetic resin, pulverized granules of a thermosetting resin cured product of unsaturated polyester resin, urea resin, or phenol resin are used alone or in combination. A method for producing a material for wall coverings that has a metallic luster. 3. The pulverized granules of a synthetic resin include pulverized granules of a thermoplastic resin such as polyvinyl chloride, polyethylene, or polypropylene containing 40 to 80% by weight of an inorganic filler. A method for producing a material for wall coverings that has a metallic luster.