JPS62100562A - Wall material composition and production thereof - Google Patents

Abstract

PURPOSE:To readily obtain a uniform wall material composition, by adding an aqueous solution of an alkaline material to colored clay, etc., neutralizing acidic materials contained therein, mixing short fibers therewith and mixing the resultant granulated material having improved preservation stability, solubility in kneading with water, etc., with a granulated material of a different color obtained in the similar manner. CONSTITUTION:An aqueous solution of an alkaline material, e.g. sodium hydroxide, is added to a mixture consisting essentially of a granular aggregate, e.g. sand, crushed stone, etc., and a colorant to neutralize acidic materials contained in the granular aggregate and colored clay. A wall material component consisting essentially of sodium cellulose glycolate, and short fibers, e.g. fibers for plastering or finely pulverized pulp, is mixed therewith to give a granulated material of a specific color, which is then mixed with one or more granulated materials of a different color obtained in the similar manner to afford the aimed wall material composition. The above-mentioned alkaline material is added to give 6-11pH, preferably 8-10pH when dissolving the wall material composition in water. EFFECT:A wall surface having the Japanese style feeling is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a wall material composition capable of forming a wall finish exhibiting a Japanese style area and a method for producing the same.
It is useful as a plastering material.

Conventional technology The main components are granular aggregates such as sand, crushed stone, glass beads, wood flour, synthetic resin, and rubber, natural or artificial colored soil, and short fibers such as sandpaper and finely crushed bulbs, and these are used as adhesive components. Wall materials made by blending cellulose sodium glycolate alone or in combination with other glues are easy to separate due to the large difference in specific gravity of the blended base materials, and even if the short fibers become entangled with each other (forming into strips). Since it is difficult to mix uniformly due to phenomena such as If the wall material composition is made into an integral granule, the viscosity of the cellulose sodium glycolate decreases significantly when it comes into contact with colored soil, making it unsuitable for long-term storage. A manufacturing method has been proposed in which granules are prepared by separating cellulose and sodium glycolate, and the granules on both sides are mixed together.(Japanese Patent Publication No. 15465/1983) Problems to be Solved by the Invention Colored soil and cellulose sodium glycolate are separated, and granules mainly composed of granular aggregate and colored soil and granules mainly composed of granular aggregate and cellulose sodium glycolate are made separately, and the granules on both sides are made uniform. When the storage period of wall materials manufactured by mixing the granular aggregate with the granular aggregate exceeds several months, the deterioration of cellulose sodium glycolate becomes noticeable, making it unsuitable for use as a wall material. Granules mainly made of soil do not disintegrate quickly when they come into contact with water, so even after mixing with water, colored soil remains on the surface of some granular aggregates without disintegrating, resulting in different colors. When granulated materials are mixed together, colored soil appears as streaks in the direction of the troweling,
Since color unevenness occurs on the finished wall surface, it is extremely difficult to combine specific brands of paint or pigments to create a mixed or neutral color.

Means to Solve the Problems In view of the above circumstances, the inventors of the present invention have repeatedly conducted various tests and found that an adhesive composition whose main components are granular aggregate, colored soil, and short fibers, and whose main component is cellulose sodium glycolate. The reason why cellulose sodium glycolate becomes insolubilized when these base materials are mixed in contact with each other in wall materials is as follows.
A small amount of acidic substance contained in colored soil reacts with cellulose sodium glycolate, and part of it changes to cellulose glycolic acid, which is converted into magnesium contained in colored soil and some types of granular aggregates during mixing with water. , Calsulam, zinc, iron, aluminum, chromium, manganese, etc. react with divalent or higher metal ions, forming cross-links within or between the molecules of cellulose sodium glycolate, resulting in gelation of cellulose sodium glycolate. In order to prevent this harmful effect, we added an alkaline substance to the wall material, which is mainly composed of granular aggregate, colored soil, and short fibers, and whose main adhesive component is cellulose sodium glycolate, and added water. The pH value of the wall material dissolved in
By adjusting it within the range of 1 to 11, even when the cellulose sodium glycolate and colored soil are brought into direct contact, the viscosity change of the cellulose sodium glycolate is slight,
It is possible to integrally granulate each of these base materials, and the granules produced in this way dissolve quickly when brought into contact with water, even when granules of different colors are mixed. It was discovered that by just lightly kneading, the colored soils of each granule were mixed, and the scales were able to reveal mixed colors and neutral colors of several different colored granules.

In addition, when forming granules in which colored soil, alkaline substances, short fibers, and cellulose sodium glycolate are coated on the surface of granular aggregate, changes in the viscosity of the wall material over time are further reduced and its storage stability is improved. As a result of considering ways to further increase the granular aggregate and colored soil, we added an aqueous solution of an alkaline substance to the mixture of granular aggregate and colored soil to neutralize it. By mixing cellulose sodium glycolate and other base materials and granulating the mixture, a wall material composition with further improved formulation stability and solubility when kneaded with water was created.

The granular aggregate suitable for carrying out the present invention is 10 to 80 mesos.
Preferably, the particle size is 20 to 48 mesh, typical examples of which include sand, natural or artificial sand such as analite, perlite, vermiculite, crushed stone, wood powder, glass beads, synthetic resin, natural rubber, Synthetic rubber, etc. Colored soil is natural or artificial material to which coloring agents such as dispersants, pigments, and dyes are added as necessary. Short fibers include suzane, finely pulverized bulbs, and various fibers. It is possible to use a material cut into lengths of several 1.

Typical alkaline substances used in the present invention include sodium hydroxide, potassium hydroxide, aqueous ammonia, sodium carbonate, acidic sodium carbonate, potassium carbonate, ammonium carbonate, and sodium phosphate. , organic carboxylic acid, sulfurous acid, nitrous acid, phosphoric acid, hydrochloric acid, sulfuric acid, etc. containing trace amounts of acidic substances with a pH of 3.8 to 6.
The colored soil and acidic granular aggregate should be neutralized and the pH of the wall material composition should be 6 to 11, preferably 8 to 10, and the amount of alkaline substances added to the wall material should be If the amount is too high, it will cause scum and stains on the painted wall surface, so mixing the alkaline substance must be done properly.

In carrying out the present invention, it is desirable to add a polyhydric alcohol such as glycerin to the aqueous solution containing an alkaline substance to increase the permeability of the aqueous alkaline solution into the wall base material.

As the adhesive component in the present invention, in addition to using cellulose sodium glycolate alone, methyl cellulose,
Hydroxyethyl cellulose, polyvinyl alcohol,
Water-soluble glues such as sodium alginate, sodium polyacrylate, and starch can be used together, and these water-soluble glues can be stored in the same way as cellulose sodium glycolate by adding an alkaline substance to the wall material composition. Also, it suppresses the decrease in viscosity of the paste during kneading with water, and improves solubility.

In the present invention, in order to finish walls in various colors according to customer needs, the three primary colors of red granules, yellow granules, and blue granules have a limited color range and are difficult to express a deep color tone. Therefore, granules of at least five primary colors should be formed and used in appropriate combinations.

Effect According to the present invention, since an alkaline substance is added to the wall material composition, the color and, in some cases, the respective acidic substances contained in the granular aggregate are neutralized and the cellulose sodium glycolate has no effect. Metal ions of divalent or higher valence contained in colored soil and, in some cases, granular aggregates react with alkaline substances and turn into insoluble hydroxides.
As a result, cellulose sodium glycolate does not participate in gelatinization at all, so even if the wall material components are mixed in contact with each other and kneaded with water, no chemical change in cellulose sodium glycolate will occur. It can be stored stably for a long time and dissolves quickly when mixed with water, so if you mix several types of granules in advance using different colored soils, it will be easier to mix with water. Sometimes, by simply kneading the granules lightly, the colored soils of each granule can be mixed with each other to form a uniformly mixed color state.

The present invention will be specifically explained below using Examples and Reference Examples.

Note that the numerical units in these tests are expressed in weight, unless otherwise specified.

Reference example 1 Acidity of various naturally produced colored soils and acidic granular aggregates (P
This was neutralized to pH 7 using H) and an aqueous sodium carbonate solution, and the required amount of sodium carbonate was measured, and the results were as shown in Table 1.

Table 1 (Unit: mg7kg)□
□No From these results, colored soil is granular and porous, so when it is treated at room temperature, the acidic substances in the colored soil cannot be completely neutralized with a short period of neutralization, and the layer of alkaline substances is It was recognized that the amount measured by boiling neutralization should be used as a standard, and a similar phenomenon was observed for granular aggregates such as river sand.

Reference example 2 785 parts of river sand (average particle size: 30 mesh) and 1150 parts of natural
(P114.5) and 15 parts of pigment were uniformly mixed 7.
To this, 50 parts of a 2% aqueous solution of sodium carbonate was added and kneaded uniformly. Furthermore, 14.5 parts of cellulose sodium glycolate, 5 parts of methyl cellulose, and 35 parts of pulverized valve were added, and stirring and mixing was continued. This produces granules with other base materials spread on the surface of sand, which is dried at a temperature of about 80"C for 3 hours to form granules with other base materials integrally attached to the surface of sand. Obtained wall material.

The pH value of the thus prepared granular wall material composition dissolved in water is 9.0, and when the wall material composition is added to a container containing 800 parts of water, the granules disintegrate immediately. This caused a viscous slurry in which each base material was evenly dispersed with just a light kneading, and when this was applied to the wall with a trowel, workability such as elongation and separation with the trowel was extremely good, and the wall was dry. The finished surface was able to express the beautiful uneven satin pattern unique to Juraku walls, with no short fiber pilling at all.

Reference Example 3 In Reference Example 2, instead of the sodium carbonate aqueous solution,
Wall material A was manufactured by adding granules containing each base material to the surface of sand made by adding water that did not contain sodium carbonate and performing the same treatment, and adding 600 parts of sand to water. Wet it and add 150 parts of natural material, 15 parts of pigment, 5 parts of methyl cellulose.
and 35 parts of finely pulverized pulp were added and mixed and granulated to form a dry granule, and 185 parts of sand was moistened with water and 14.5 parts of cellulose sodium glycolate was added thereto and mixed. The granules were granulated and dried to form a granule, wall material B was prepared by blending these granules on both sides, and wall material C was prepared by adding the alkaline substance produced in Reference Example 2, and polyethylene bags were prepared. Table 2 shows the results of measuring the change in viscosity after leaving them in a constant temperature bath kept at 60° C. for 20 days.

Example 1 160 parts of Aichi clay clay, titanium oxide, and 50 parts of rutile-type white pigment were added to 625 parts of river sand (average particle size: 30 mcm) and mixed. To this was added 70 parts of a 3% aqueous solution of sodium carbonate, and the mixture was mixed uniformly. After mixing, 20 parts of sodium cellulose glycolate, 10 parts of methyl cellulose, and 70 parts of finely pulverized pulp were added and stirring was continued. As a result, other base materials were spread on the surface of the sand. The resulting granules were dried at a temperature of about 80° C. for 3 hours to obtain white granules having a pH of 8.5 and having another base material integrally adhered to the surface of river sand.

On the other hand, 625 parts of sand (particle size is the same as the river sand), 160 parts of white clay whose main component is kaolin, and an iron-based red pigment (trade name [
Mavi colend! ? -516LJ Titanium Kogyo Co., Ltd.), 100 parts of a 3% sodium carbonate aqueous solution containing 10 parts of glycerin was added thereto and kneaded uniformly. A mixture of 35 parts of short hemp fibers, 20 parts of cellulose sodium glycolate, and 10 parts of methylcellulose was added and mixed, and the resulting granules were dried in the same manner as above to coat the surface of the sand with other bases. A red granule having a P)I of 8.5 was obtained which was integrally coated with the material.

The white granules and red granules were mixed in a ratio of 5:95.25 near 5.
．． When a wall material was made by mixing each at a ratio of 50:50 and these were added to a container containing 800 parts of water, the granules immediately disintegrated, and when they were lightly kneaded and applied to the wall surface with a trowel, there was no elongation. Workability such as trowel removal was good, and no streaks of colored clay were observed on the troweled surface. The finished surface was prepared by mixing the same white and red pigments as above and other wall materials in the same proportions as above (-) to make a single pink granulated ball, which was then completely dissolved and troweled. No color difference was observed when compared to the same pattern as that of the original one, and the same uniform pink satin texture pattern was produced.

Example 2 625 parts of the same sand as in the previous example, 160 parts of white clay mainly composed of kaolin-montmorillonite, and a pigment (yellow is a product name: LLXLOj manufactured by Titan Kogyo, green is a product name of Kogyo rcB5)
54J Koshigaya Kasei, black product name "BL-100J Titanium Kogyo Co., Ltd.") were mixed together, 100 parts of a 3% sodium carbonate aqueous solution containing 10 parts of glycerin was added thereto, and kneaded uniformly. 35 parts of finely pulverized pulp, 20 parts of cellulose sodium glycolate, and 10 parts of methyl cellulose
The resulting granules were dried in the same manner as above to form yellow granules with a pH of approximately 8.5, which were integrally coated with other base materials on the surface of the silver sand. A green granule and a black granule were obtained.

Next, the granules and each granule of Example 1 were mixed in the proportions shown in Table 3 to form the wall material NJ1 composition.Water was added and mixed lightly with a hoe, and this was troweled onto the wall surface. When I painted it,
The workability of trowel elongation and trowel separation was good, and there were no streaks of colored soil observed on the finished surface, and the dry surface showed an uneven satin pattern with an even and deep color tone as shown in the table. I was able to get it out.

Effects of the Invention The present invention involves distributing cellulose sodium glycolate to a base material consisting of granular aggregate, colored soil, short fibers, etc., and by adding an alkaline substance, each component of the wall material is integrated. It can be stored stably as a granule, and quickly dissolves when it comes into contact with water, so by forming several types of granules in different colors and combining them, customers can enjoy their products regardless of the amount. Since wall material compositions exhibiting a wide range of mixed colors or neutral colors can be produced extremely easily, production efficiency in factories can be dramatically increased.

Patent applicant -,

Claims (3)

[Claims] (1) In a wall material whose main components are granular aggregate, colored soil, and short fibers, whose main adhesive component is cellulose sodium glycolate, and which are integrally granulated, P of the composition dissolved in water is used.
Add an alkaline substance so that H is within the range of 6 to 11, and change the color of the colored soil to form several types of granules with different colors, and form two or more types of granules with different colors. A wall material composition characterized by being mixed. (2) Add an aqueous solution of an alkaline substance to a mixture mainly consisting of granular aggregate and colored soil, and add cellulose sodium glycolate and short fibers mainly to the neutralized mixture mainly composed of granular aggregate and colored soil. Mix and granulate wall material components to form granules of a specific color, form several types of granules of different colors in the same manner as above, and form two or more types of granules of different colors. A method for producing a wall material composition characterized by mixing. (3) A method for producing a wall material composition according to claim (2), wherein a polyhydric alcohol is contained in an aqueous solution of an alkaline substance.