JPS5848592B2 - 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 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 often lose their metallic luster because of 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 inorganic granules with a particle size of 10 to 100 mesh as the main material, and a synthetic resin emulsion to a pearl pigment of 1 to 100 P/m2 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.

Therefore, the wall covering 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 of 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, inorganic granules are used as the main material.

Inorganic granules include natural sand, feldspar, basalt,
Examples include inorganic rocks such as marble and anhydrite, inorganic minerals such as magnetite and pyrite, slag produced as a by-product during iron and aluminum smelting, crushed products of ceramic products such as glass and ceramics, and foamed granules of these. Although they are used as a mixture, the appropriate particle size is about 10 to 100 mesh no matter what kind of combination they are used as the main ingredients.

Furthermore, if the particle surface is too rough or the consistency distribution is too narrow, the particle surface area will increase, resulting in the need for a large amount of pearl pigment and synthetic resin emulsion as a binder. It's the economy.

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

In addition, this granular material may be porous or hollow, but when it is kneaded with water and a synthetic resin emulsion because it is to be applied with a trowel as a wall covering material for the final object, the strength becomes weak due to the kneading water and it collapses. It is not preferable to use granular materials with low water resistance and compressive strength that easily break when applied with a trowel or by the pressure of the trowel.

As mentioned above, the present invention consists of using pre-colored granules, but for reference, the coloring method is described below. A coloring liquid made by mixing a synthetic resin emulsion, a melamine resin, or a mixture of both, water, an extender pigment, and a coloring pigment so that it can be colored in any desired color tone is added, kneaded well, and then dried. Prepare colored granules.

Next, the surface area is calculated from the specific gravity of the granules and the average particle diameter obtained from the particle size distribution using a simple formula [6/(specific gravity x average particle diameter)]. /m2 of pearl pigment with 100 to iooo parts by weight of synthetic resin emulsion as a binder added to the previously colored granules, kneaded well, and dried to create a wall covering that exhibits a metallic luster. Materials for wood can be obtained.

In order to obtain a wall material exhibiting a metallic luster using the thus obtained wall covering material of the present invention, a synthetic glue such as carboxymethyl cellulose 1 to 1 is added to the wall covering material.
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.
A wall covering material suitable for troweling and capable of producing a metallic luster by preparing a liquid in which 0 to 50 MM parts are dispersed in 100 to 600 parts by weight of water, and mixing this to moisten colored powder particles. It is possible to do this.

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. Moreover, from the point of view that the operation cost of complete recovery equipment and complete combustion equipment for preventing these problems is high and uneconomical, an aqueous resin emulsion is preferable.

Preferably, such synthetic resin emulsions are used as adhesives or raw materials for paints, etc. After the pearl pigment is spread on the surface of the granules, tackiness remains.
Synthetic resin emulsions for adhesives where 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-vinyl 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, wall covering materials made using the material for wall covering materials obtained by the method of the present invention can be used for cement mortar walls, gypsum plaster,
Earthen walls, gypsum boards, PC boards, foam concrete boards (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 you might lose your ability.

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

Example 1 Black silica sand was obtained by coating the surface of 20 to 48 mesh silica sand with a mixture of acrylic emulsion consisting of methyl methacrylate and butyl acrylate, melamine resin, clay, and black iron oxide, and 1000 parts by weight of this black silica sand (surface area A liquid obtained by adding 5 parts by weight of natural pearl essence to 15 M parts of a 50% concentration acrylic emulsion made of methyl methacrylate and butyl acrylate is mixed into approximately 4 m2), kneaded, dried, and made into a wall covering material. Obtained materials for use.

Next, add 30 parts by weight of carboxymethyl cellulose and 50 parts by weight of vinyl acetate emulsion to 1000 parts by weight of this wall covering material.
Parts by weight and 350 parts by weight of water were kneaded to make a wall covering material, which was troweled onto a flexible board with a strong alkaline base surface, and when dried, a black-silver finished surface with an elegant luster was obtained.

Example 2 16-24 mesh 32% 24-48 mesh 6
0% 48-100 mesh 8% Methyl methacrylate, ethyl acrylate, 2- by adding 30 parts by weight of basic lead carbonate to 1000 parts by weight (surface area approximately 5 m2) of crushed black slag produced during the refining of copper. A 50% concentration acrylic emulsion made of ethylhexyl acrylate was gradually added, mixed uniformly, and taken out and dried to obtain a wall covering material.

To 1000 parts by weight of this material, 8 parts by weight of carboxymethyl cellulose, 100 parts by weight of 50% ethylene-vinyl acetate emulsion and 300 parts by weight of water were added to make a wall covering material, and when painted on the wall using a trowel, it turned black. A finished surface with a beautiful silver metallic luster was obtained.

Example 3 18-25 mesh 50% 25-1 of an inorganic lightweight granular material (trade name: cloud particles, manufactured by OK Trading Co., Ltd.) made of ceramic or alkali glass as a raw material and foamed and fired at high temperature.
00 mesh 50% mixture was surface coated with a formulation consisting of ethylene-vinyl acetate emulsion, melamine resin, finely powdered calcium carbonate, and yellow iron oxide to obtain yellow inorganic lightweight granules, and this yellow inorganic lightweight granules 10
It was obtained by adding 1,400 parts by weight of a styrene-acrylic copolymer resin emulsion which had been previously diluted with water to a concentration of 25% and 700 parts by weight of mica coated with a titanium oxide thin film exhibiting a golden color to 0 parts by weight (surface area approximately 14 m2). After the liquid was added and mixed uniformly, it was taken out and dried under hot air at 80°C to obtain a wall covering material.

80 parts by weight of carboxymethyl cellulose, 400 parts by weight of vinyl acetate acrylic copolymer resin emulsion, and 4000 parts by weight of water were added to 1000 parts by weight of this material to make a wall covering material, and when painted on the wall using a trowel, it turned golden yellow. A shiny, beautiful and luxurious painted surface was obtained.

Example 4 24-48 mesh 90% 48-100 mesh LO
% glass beads with a small amount of lid cyanine green dispersed in a 50% acrylic emulsion consisting of methyl methacrylate and butyl acrylate, the surface is coated to maintain the transparency of the glass. Green glass beads were obtained, and to 1000 parts by weight of the green glass beads (surface area approximately 4 m2), 5 parts by weight of mica coated with a thin film of ethylene oxide exhibiting a pearl color was added at a concentration of 40% consisting of methyl methacrylate, ethyl acrylate, and 2-ethylhexyl acrylate. The resulting liquid was added to the acrylic emulsion, kneaded, and dried to obtain a wall covering material.

To 1000 parts by weight of this material were added 10 parts by weight of carboxymethyl cellulose, 200 parts by weight of a 50% styrene-acrylic emulsion which had been made to a film-forming temperature below 0°C by adding toluene in advance, and 400 parts by weight of water to obtain a wall covering material. When the wall material was painted on the wall surface, a beautiful, luxurious, and water-resistant painted surface was obtained that had a green metallic luster and sparkled with the light reflected from the interior of the glass beads.

Claims (1)

[Claims] 1 The main material is pre-colored inorganic granules with a particle size of 10 to 100 mesh, and 1 to 100 per surface area of the main material.
1. A method for producing a material for wall covering material having metallic luster, which comprises coating the surface of the main material using a liquid obtained by adding a synthetic resin emulsion as a binder to a pearl pigment of "f/m" as a binder.