KR101602551B1 - Composition for coloration of stone and method for colored sand by using the composion - Google Patents

Abstract

The present invention relates to a composition for coloring stones and a method for producing colored sandals using the same, wherein the composition for coloring stones according to the present invention comprises lithium silicate, sodium silicate, potassium silicate, An inorganic mixture comprising an inorganic pigment and any one selected from the group consisting of calcium silicate, magnesium silicate, colloidal silica, and mixtures thereof; A polyurethane resin, a urethane resin, an epoxy resin, an acrylic resin, a silicone resin, a polyvinyl acetate resin, a polyamide resin, a polycarbonate resin, resin, and mixtures thereof; an organic mixture comprising any one selected from the group consisting of alcohols having 1 to 5 carbon atoms, hexane, methylene chloride, and mixtures thereof, and organic pigments; A dispersant comprising any one selected from the group consisting of sodium aliphatic acid, monoalkylsulfuric acid salts, alkylbenzenesulfonic acid salts, alkylsulfobetaines, alkylcarboxybetaines, polyvinylalcohols, fatty acid sorbitan esters, and mixtures thereof; Dimethyl-polysiloxane, decanoic acid, and mixtures thereof, and may be mixed with stirring at 300 to 3000 RPM.
The composition for coloring stone according to the present invention can increase the color and texture of the stone by allowing the reactive resin and the color to completely penetrate into the interior of the stone so as to have various colors and textures on the surface of the stone.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composition for coloring stones and a method for producing colored sandals using the same,

The present invention relates to a composition for coloring stones and a method for producing colored sandals using the same. More particularly, the present invention relates to a composition for coloring a stone and a method for producing a colored sand using the same, wherein the color and texture are improved, the formation of the colored layer is uniform, the heat resistance and the durability can be improved.

In general, a variety of materials are used for interior and exterior materials for construction to suit the functions and the aesthetics of interior and exterior spaces of a building. These inner and outer materials serve to block weather, wind, sunlight, fire, heat and noise, and their materials are divided into wood, synthetic resin, paper and stone.

Among the materials used in conventional interior and exterior materials for construction, stones are widely used as durability and environmentally friendly materials. However, the stone used in the past can not satisfy the demand of the consumers who demand various colors and textures by using the natural texture and color feeling as they are.

Also, in modern construction, stone is used as interior and exterior materials to add the structure or aesthetic function of the construction. Demand for stone is also increasing as the demand of the construction material increases due to population increase and industrialization. In addition, most of the stone users in the past were used to enjoy the natural beauty felt in the texture of the stone, but in the modern stone user, the demand for the beautiful color was added together with the natural beauty felt in the stone unique material, and accordingly, Is increasing.

It is also possible to use interior and exterior materials having a color and texture similar to those of a stone made by molding a mixture of artificial stone and stone powder mixed with a certain proportion of pigment and cement adhesive, There is a problem in that the color is discolored or discolored, and dust and pigment are scattered in the working process, thereby deteriorating the working environment.

Further, in the case of marble, in order to mechanically process the surface of the collected natural stone, it is necessary to undergo a polishing process several times. Due to a great effort in the polishing process, it takes a long time to obtain a desired stone, There is a drawback in that it is expensive, and the stone powder is scattered during the polishing process, which deteriorates the work environment and causes a serious injury to the health of the workers.

In the case of marble used as a conventional interior / exterior material, it is possible to use a product produced by coating a coating material having marble pattern that realizes various colors on the surface of a generally used processed stone, or a synthetic resin film, , A curing agent, and the like at a predetermined ratio are molded and cured. As an example of such an example, Korean Patent Registration No. 10-0342176 discloses a composition prepared by adding a curing agent to a resin mixture obtained by mixing an epoxy resin composition with a synthetic resin film color chip. In this case, And the coating surface is peeled off or worn by the external stimuli. In addition, when the coating surface is exposed to ultraviolet rays for a long period of time, there is a phenomenon of discoloration of the artificial marble, There is a drawback that the color of the coating is lost.

In Korean Patent No. 10-0366568, a mixture obtained by mixing a resin composition with a synthetic resin film color chip in a state of heating the epoxy resin composition at 30 to 100 캜 is stirred under reduced pressure to remove bubbles and moisture, A first curing step in which the curing agent is added to the mixture and the mixture is vacuum degassed again and then poured into a mold to form the pressed molding agent into a touched state and a preliminarily cured molded article is maintained for a certain period of time So as to complete the curing of the molded body, thereby producing an artificial marble.

However, the artificial marble produced by the above-described production method satisfies the strength required for interior and exterior materials and has excellent properties in terms of abrasion resistance, shrink resistance, water resistance, cold resistance and chemical resistance, It is disadvantageous in that the original color is lost due to the phenomenon of discoloration.

Accordingly, there is a need for a research method capable of realizing various colors without discoloring or discoloring even when exposed to ultraviolet rays for a long time while maintaining the inherent properties of the stone, and to color various colors in stone.

KR 10-0342176 B1 KR 10-0366568 B1

An object of the present invention is to provide a stone coloring composition which allows the reactive resin and the color to be completely penetrated and colored to the inside of the stone so as to have various colors and textures on the surface of the stone.

Another object of the present invention is to provide a colored sanding color in which the coloring layer is uniformly formed using the coloring composition of the stone and the durability and the abrasion resistance are improved.

In order to accomplish the above object, a composition for coloring a stone according to an embodiment of the present invention may include at least one selected from the group consisting of lithium silicate, sodium silicate, potassium silicate, calcium silicate, an inorganic mixture comprising any one selected from the group consisting of magnesium silicate, colloidal silica, and mixtures thereof, and an inorganic pigment; A polyurethane resin, a urethane resin, an epoxy resin, an acrylic resin, a silicone resin, a polyvinyl acetate resin, a polyamide resin, a polycarbonate resin, resin, and mixtures thereof; an organic mixture comprising any one selected from the group consisting of alcohols having 1 to 5 carbon atoms, hexane, methylene chloride, and mixtures thereof, and organic pigments; A dispersant comprising any one selected from the group consisting of sodium aliphatic acid, monoalkylsulfuric acid salts, alkylbenzenesulfonic acid salts, alkylsulfobetaines, alkylcarboxybetaines, polyvinylalcohols, fatty acid sorbitan esters, and mixtures thereof; Dimethyl-polysiloxane, decanoic acid, and mixtures thereof, and may be mixed with stirring at 300 to 3000 RPM.

Wherein the composition for coloring stones comprises, based on 100 parts by weight of the inorganic mixture, 80 to 200 parts by weight of the organic mixture; 0.5 to 2 parts by weight of the dispersing agent and 0.01 to 0.1 part by weight of the penetrating agent. The inorganic mixture may have a specific gravity of 1.3 to 2.2 and the organic mixture may have a specific gravity of 0.8 to 1.2.

The stone coloring composition may further comprise 1 to 5 parts by weight of calcium carbonate per 100 parts by weight of the inorganic mixture.

The colored sand sand using the stone coloring composition according to another embodiment of the present invention includes a silica sand selection step of selecting a stone to a predetermined size; A cleaning step of washing and drying the stone having been subjected to the silica sand sorting step; The stone subjected to the purging step is stirred at 300 to 3,000 RPM to obtain a mixture of lithium silicate, sodium silicate, potassium silicate, calcium silicate, magnesium silicate, Colloidal silica, and mixtures thereof, an inorganic mixture containing an inorganic pigment, a urethane resin, an epoxy resin, an acrylic resin, a silicone resin, a silicone resin, a polyvinyl acetate resin, a polyamide resin, a polycarbonate resin, and a mixture thereof, an alcohol having 1 to 5 carbon atoms, hexane, Methylene chloride, and mixtures thereof, and an organic pigment. A dispersing agent containing any one selected from the group consisting of a water-soluble polymer, a polymer, a mechanical mixture, a sodium salt of a fatty acid, a monoalkylsulfate, an alkylbenzenesulfonate, an alkylsulfobetaine, an alkylcarboxybetaine, a polyvinyl alcohol, a fatty acid sorbitan ester, A first coloring step of coloring with a first stone coloring composition comprising a penetrating agent comprising any one selected from the group consisting of polysiloxane, decanoic acid, and mixtures thereof; A coloring layer stabilizing step of washing and drying the stone subjected to the first coloring step while stirring at 300 to 3000 RPM; A second coloring step of coloring the stone subjected to the coloring layer stabilization step with a second stone coloring composition comprising urethane resin, epoxy resin, alcohol having 1 to 5 carbon atoms, and organic pigment; A colored layer drying step of drying the stone subjected to the second coloring step with stirring at 300 to 3000 RPM; A coating step of coating the stone subjected to the coloring layer drying step with a coating solution containing acrylic resin and titanium dioxide while stirring at 300 to 3000 RPM and a coating step of drying the coated stone with stirring at 300 to 3000 RPM And a drying step.

Hereinafter, the present invention will be described in more detail.

In order to accomplish the above object, a composition for coloring a stone according to an embodiment of the present invention may include at least one selected from the group consisting of lithium silicate, sodium silicate, potassium silicate, calcium silicate, an inorganic mixture comprising any one selected from the group consisting of magnesium silicate, colloidal silica, and mixtures thereof, and an inorganic pigment; A polyurethane resin, a urethane resin, an epoxy resin, an acrylic resin, a silicone resin, a polyvinyl acetate resin, a polyamide resin, a polycarbonate resin, resin, and mixtures thereof; an organic mixture comprising any one selected from the group consisting of alcohols having 1 to 5 carbon atoms, hexane, methylene chloride, and mixtures thereof, and organic pigments; A dispersant comprising any one selected from the group consisting of sodium aliphatic acid, monoalkylsulfuric acid salts, alkylbenzenesulfonic acid salts, alkylsulfobetaines, alkylcarboxybetaines, polyvinylalcohols, fatty acid sorbitan esters, and mixtures thereof; Dimethyl-polysiloxane, decanoic acid, and mixtures thereof, and may be mixed with stirring at 300 to 3000 RPM.

The inorganic mixture serves to strengthen the surface of the stone and stably form the colored layer containing the inorganic pigment. The inorganic pigment may be determined in consideration of the color and texture of the colored layer to be formed, and is considered to include all of the inorganic pigments that can be used in the related art.

Preferably, the inorganic mixture may comprise lithium silicate, potassium silicate and an inorganic pigment. When the lithium silicate and potassium silicate are mixedly used, the reinforcing effect on the stone is excellent. The lithium silicate is excellent in adhesion and is excellent in forming a coloring layer on the stone, and the potassium silicate is mixed with the lithium silicate The adhesion of the lithium silicate is controlled to improve the workability and the durability of the stone can be enhanced.

More preferably, the inorganic mixture may include 100 parts by weight of lithium silicate, 20 to 800 parts by weight of potassium silicate, 5 to 10 parts by weight of calcium silicate, and an inorganic pigment with respect to the lithium silicate. According to the above-mentioned range, there is an advantage that a colored layer having excellent adhesiveness and durability can be formed and a natural texture of a stone to be colored can be derived.

Further, the viscosity of the inorganic mixture may be 2.1 to 30 cP. According to the viscosity range, not only a certain amount of the mixture can penetrate into the inside of the stone granules but also can be uniformly applied to the stone granules, thereby preventing the generation of stone granules in which the respective stone granules are not attached to form a colored layer .

The organic mixture has an advantage of enhancing natural color and texture. When the pigment contained in the organic mixture is used for the inorganic mixture, it is possible to improve the durability of the coloring layer of the stone and produce a more natural color and texture.

The organic pigment may be determined in consideration of the color and texture of the colored layer to be formed, and is considered to include all the organic pigments that can be used in the related art.

Preferably, the organic mixture may comprise urethane resin, acrylic resin, polycarbonate resin, organic pigment, methanol and hexane. According to the above range, it is possible to form an organic coloring layer having a more natural color tone while being well compatible with the use of the inorganic mixture.

More preferably, the organic mixture comprises 100 parts by weight of a urethane resin, 100 to 230 parts by weight of an acrylic resin, 12 to 30 parts by weight of a polycarbonate resin, 10 to 400 parts by weight of an organic pigment, 10 to 400 parts by weight of methanol, Parts by weight. According to the above-mentioned range, there is an advantage that a colored layer having excellent adhesiveness and durability can be formed and a natural texture of a stone to be colored can be derived.

The inorganic mixture and the organic mixture may be mixed at a weight ratio of 3: 1 to 1: 3, and preferably the inorganic mixture and the organic mixture may be mixed at a weight ratio of 2: 1 to 1.1: 1. In the above range, a synergistic effect depending on the use of each mixture may be exhibited in increasing the stiffness and the expressive power of the colored layer.

The dispersant is used to uniformly disperse the inorganic mixture and the organic mixture. Unless the inorganic mixture and the organic mixture are uniformly dispersed in the process of applying the mixture to the stone, it is difficult to achieve natural color and texture by using the inorganic and organic mixture and the pigment.

Preferably, the dispersant may be a mixture of an alkyl benzene sulfonate and an alkyl sulfobetaine in a weight ratio of 1: 3 to 3: 1. According to the above range, the inorganic mixture and the organic mixture can be uniformly dispersed evenly and workability can be improved, and the stone coloring composition can be evenly applied to the stone, and a color sand of excellent quality can be produced.

Preferably, the dispersing agent may be a mixture of alkyl benzene sulfonate, alkyl sulfobetaine and fatty acid sorbitan ester in a weight ratio of 1: 3: 3 to 3: 1: 1.

The penetrating agent is essentially used to inhibit foaming of the stone coloring composition and penetrate into the inside of the stone.

Preferably, the penetrating agent may include 0.01 to 0.1% by weight of dimethyl-polysiloxane based on the total amount of the stone coloring composition. According to the above range, it is possible to prevent foam formation of the stone coloring composition and increase the permeability. If the amount is less than 0.01 part by weight, the effect is insignificant. If the amount is more than 0.1 part by weight, the penetrating agent acts as an impurity, thereby deteriorating the color of the pigment.

The stone coloring composition is stirred at 300 to 3000 RPM, and the inorganic mixture and the organic mixture are uniformly mixed by an instant. The inorganic mixture and the organic mixture form a certain layer with a specific gravity difference on the stone after application, and a colored layer having high durability and reinforcement for the stone can be formed, and natural color and texture can be expressed. However, in the process of coating, the inorganic mixture and the organic mixture may be dispersed evenly in each of the stone granules, and stirring may be performed, so that stirring in the above range may be required.

When stirring is carried out at less than 300RPM, the above-mentioned effect is hardly obtained, and when stirred at 3000 RPM or more, there is a problem that permeability of the stone coloring composition is lowered due to foam formation.

More preferably, the stone coloring composition may be stirred at 1000 to 1800 RPM. According to the above range, it is possible to evenly disperse the inorganic mixture and the organic mixture, and the permeability can be prevented from lowering.

Wherein the composition for coloring stones comprises, based on 100 parts by weight of the inorganic mixture, 80 to 200 parts by weight of the organic mixture; 0.5 to 2 parts by weight of the dispersing agent and 0.01 to 0.1 part by weight of the penetrating agent. The inorganic mixture may have a specific gravity of 1.3 to 2.2 and the organic mixture may have a specific gravity of 0.8 to 1.2.

According to the above range, a natural coloring layer can be formed when the organic mixture and the inorganic mixture are properly mixed with the stone, and in particular, when the specific gravity ranges, the stone coloring composition The inorganic mixture plays a role of enhancing the durability of the stain and the reinforcement of the stones in the interior of the stone, and the organic mixture forms a colored layer having better color feeling and texture . Particularly, since the specific gravity should be considered in consideration of the permeability of the inorganic mixture and the organic mixture, the specific gravity range suitable for the stone coloring composition according to the present invention is not uniformly applicable to general coloring compositions.

More preferably, the inorganic mixture has a specific gravity of 1.5 to 2.0, and the organic mixture may have a specific gravity of 0.85 to 1.0. In the above range, the effect of the specific gravity difference can be more excellent.

The stone coloring composition may further comprise 1 to 5 parts by weight of calcium carbonate per 100 parts by weight of the inorganic mixture. This has the advantage of enhancing the durability of the stone and enhancing the effect of strengthening the colored layer.

More preferably, the stone coloring composition may further comprise 1 to 5 parts by weight of calcium carbonate and 0.01 to 1 part by weight of sodium phosphate dibasic with respect to 100 parts by weight of the inorganic mixture. Particularly, the use of the second sodium phosphate prevents the stone particles from sticking to each other while forming a certain film immediately after the coloring layer is applied to the stone, and can exhibit very high durability.

The colored sand sand using the stone coloring composition according to another embodiment of the present invention includes a silica sand selection step of selecting a stone to a predetermined size; A cleaning step of washing and drying the stone having been subjected to the silica sand sorting step; The stone subjected to the purging step is stirred at 300 to 3,000 RPM to obtain a mixture of lithium silicate, sodium silicate, potassium silicate, calcium silicate, magnesium silicate, Colloidal silica, and mixtures thereof, an inorganic mixture containing an inorganic pigment, a urethane resin, an epoxy resin, an acrylic resin, a silicone resin, a silicone resin, a polyvinyl acetate resin, a polyamide resin, a polycarbonate resin, and a mixture thereof, an alcohol having 1 to 5 carbon atoms, hexane, Methylene chloride, and mixtures thereof, and an organic pigment. A dispersing agent containing any one selected from the group consisting of a water-soluble polymer, a polymer, a mechanical mixture, a sodium salt of a fatty acid, a monoalkylsulfate, an alkylbenzenesulfonate, an alkylsulfobetaine, an alkylcarboxybetaine, a polyvinyl alcohol, a fatty acid sorbitan ester, A first coloring step of coloring with a first stone coloring composition comprising a penetrating agent comprising any one selected from the group consisting of polysiloxane, decanoic acid, and mixtures thereof; A coloring layer stabilizing step of washing and drying the stone subjected to the first coloring step while stirring at 300 to 3000 RPM; A second coloring step of coloring the stone subjected to the coloring layer stabilization step with a second stone coloring composition comprising urethane resin, epoxy resin, alcohol having 1 to 5 carbon atoms, and organic pigment; A colored layer drying step of drying the stone subjected to the first coloring step with stirring at 300 to 3000 RPM; A coating step of coating the stone subjected to the coloring layer drying step with a coating solution containing acrylic resin and titanium dioxide while stirring at 300 to 3000 RPM and a coating step of drying the coated stone with stirring at 300 to 3000 RPM And a drying step.

The stone used throughout the specification of the present invention is broadly defined to include, in addition to its general meaning, sand, mica, quartz, natural stone and other non-metallic minerals.

The color sand used throughout the specification of the present invention is defined as meaning one or more colored stone grains or one or more colored stone grains used for making or using the artificial stone itself.

In the silica sand separation step, the stone granules may have a diameter of 0.1 mm to 13 mm. According to the above range, it is possible to form a stable coloring layer by using the stone coloring composition.

And the purging step is performed so that the colored layer can be strongly adhered to and formed on the surface of the stone. It is possible to prevent the contamination of the colored layer and the durability of the colored layer from being deteriorated by removing the impurities.

The purification step may be a mixture of water and an alkylbenzenesulfonic acid salt. Preferably, water and an alkylbenzenesulfonic acid salt are mixed at a weight ratio of 1000: 1 to 100: 1. According to the above range, the impurities contained in the stone can be removed, and the surface of the stone can be prevented from being contaminated during the purification process.

The coloring layer stabilization step may be performed at 40 to 90 < 0 > C. According to the above range, the colored layer by the first coloring step can be stably formed.

Preferably, the second stone coloring composition comprises 100 parts by weight of urethane resin, 80 to 400 parts by weight of an epoxy resin, 20 to 800 parts by weight of methanol, and 100 parts by weight of an organic pigment . In the above range, the expressiveness of color and texture of the stone can be enhanced.

The second release step is to protect the colored layer formed in the first coloring step by further coloring to form a coloring layer having better texture and color.

The coloring layer drying step may be performed at 40 to 50 < 0 > C. According to the above range, the coloring layer formed by the second coloring step is not broken, and a coloring layer having excellent color and texture can be formed.

By the coating step, it is possible to prevent the coloring layer from being discolored or being physically deformed in the course of processing the colored stone by forming a coating layer on the entire coloring layer. In particular, when the acrylic resin and the titanium dioxide are mixed in a weight ratio of 100: 3 to 10: 1, the effect of using the coating layer can be remarkably excellent.

The drying of the coating layer may be performed at 40 to 50 ° C. It is possible to form a coating layer having excellent durability and uniformly cured on the surface in the above range.

The composition for coloring stone according to the present invention can increase the color and texture of the stone by allowing the reactive resin and the color to completely penetrate into the stone so as to have various colors and textures on the surface of the stone,

The colored sand produced by using the coloring composition of the stone may have improved color and texture as well as improved durability and abrasion resistance while the colored layer is uniformly formed.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

[Preparation Example: Preparation of Examples and Comparative Examples]

In order to confirm the effect according to the present invention, coloring was proceeded with the composition shown in Table 1 below. Screening, cleaning, standardization and screening of non-metallic minerals other than the coloring step were carried out in the same manner according to a conventional method. Otherwise, the manufacturing step was carried out according to the manufacturing method of the present invention. The stone used had an average diameter of 2 to 3.5 mm.

Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 The first colored layer A ○ - - - - - The first colored layer B - ○ - - - - The first colored layer C - - ○ - - - The first colored layer D - - - ○ ○ ○ The second colored layer ○ ○ ○ - ○ ○ Coating layer ○ ○ ○ ○ - ○

100: 400: 20: 100: 160: 10: 15 Weight ratio (% by weight): First coloring layer A composition: Lithium silicate, potassium silicate, inorganic pigment, urethane resin, acrylic resin, polycarbonate resin, organic pigment

100: 400: 6: 20: 100: 160: 10: 15 Weight ratio of the first coloring layer B composition: Lithium silicate, potassium silicate, calcium silicate, inorganic pigment, urethane resin, acrylic resin, polycarbonate resin, organic pigment

100: 400: 6: 10: 20: 100: 160: 10 The first coloring layer C composition is a mixture of lithium silicate, potassium silicate, calcium silicate, calcium carbonate, inorganic pigment, urethane resin, acrylic resin, polycarbonate resin, : 15 weight ratio

- First colored layer D Composition: urethane resin, epoxy resin, methanol and organic pigment 100: 200: 200: 30 Weight ratio

- Second colored layer composition: urethane resin, epoxy resin, methanol and organic pigment 100: 200: 200: 30 weight ratio

- Coating layer composition: acrylic resin and titanium dioxide 40: 3 weight ratio

[Experimental Example: Color Evaluation and Durability Evaluation of Color Sand]

Example 1 was set as 10, and the contents according to the following Table 2 were indexed on the basis thereof, and the contents were evaluated for each Example and Comparative Example. The higher the number, the better the effect.

Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Pressure resistance 10 12 15 6 7 8 Chemical resistance 10 10 12 5 2 7 Scratch resistance 10 12 15 5 3 6 Texture 10 11 13 6 7 7 Color 10 10 12 7 8 8

Referring to Table 2, it can be seen that the best coloring of each item can be achieved according to the embodiment of the present invention. In particular, the pigments are not removed through the pores present in the natural stone, so that the overall color and texture can be maintained naturally, and the durability of the colored stone itself as well as the durability of the colored layer itself are excellent.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

Claims (4)

The group consisting of lithium silicate, sodium silicate, potassium silicate, calcium silicate, magnesium silicate, colloidal silica, and mixtures thereof An inorganic mixture containing any selected one and an inorganic pigment;
A polyurethane resin, a urethane resin, an epoxy resin, an acrylic resin, a silicone resin, a polyvinyl acetate resin, a polyamide resin, a polycarbonate resin, resin, and mixtures thereof; an organic mixture comprising any one selected from the group consisting of alcohols having 1 to 5 carbon atoms, hexane, methylene chloride, and mixtures thereof, and organic pigments;
A dispersant comprising any one selected from the group consisting of sodium aliphatic acid, monoalkylsulfuric acid salts, alkylbenzenesulfonic acid salts, alkylsulfobetaines, alkylcarboxybetaines, polyvinylalcohols, fatty acid sorbitan esters, and mixtures thereof;
Dimethylpolysiloxane, dimethyl-polysiloxane, decanoic acid, and mixtures thereof, wherein the penetrant comprises:
Mixed at 300 to 3000 RPM and mixed
A composition for coloring a stone. The method according to claim 1,
With respect to 100 parts by weight of the inorganic mixture,
80 to 200 parts by weight of the organic mixture;
0.5 to 2 parts by weight of the dispersant and
0.01 to 0.1 parts by weight of the above-mentioned penetrating agent
Wherein the inorganic mixture has a specific gravity of 1.3 to 2.2,
Wherein the organic mixture has a specific gravity of 0.8 to 1.2
A composition for coloring a stone. The method according to claim 1,
With respect to 100 parts by weight of the inorganic mixture,
1 to 5 parts by weight of calcium carbonate is further contained.
A composition for coloring a stone. A silica sand sorting step of sorting the stone to a predetermined size;
A cleaning step of washing and drying the stone having been subjected to the silica sand sorting step;
The stone subjected to the purging step is stirred at 300 to 3,000 RPM to obtain a mixture of lithium silicate, sodium silicate, potassium silicate, calcium silicate, magnesium silicate, Colloidal silica, and mixtures thereof, an inorganic mixture containing an inorganic pigment, a urethane resin, an epoxy resin, an acrylic resin, a silicone resin, a silicone resin, a polyvinyl acetate resin, a polyamide resin, a polycarbonate resin, and a mixture thereof, an alcohol having 1 to 5 carbon atoms, hexane, Methylene chloride, and mixtures thereof, and an organic pigment. A dispersing agent containing any one selected from the group consisting of a water-soluble polymer, a polymer, a mechanical mixture, a sodium salt of a fatty acid, a monoalkylsulfate, an alkylbenzenesulfonate, an alkylsulfobetaine, an alkylcarboxybetaine, a polyvinyl alcohol, a fatty acid sorbitan ester, A first coloring step of coloring with a first stone coloring composition comprising a penetrating agent comprising any one selected from the group consisting of polysiloxane, decanoic acid, and mixtures thereof;
A coloring layer stabilizing step of washing and drying the stone subjected to the first coloring step while stirring at 300 to 3000 RPM;
A second coloring step of coloring the stone subjected to the coloring layer stabilization step with a second stone coloring composition comprising urethane resin, epoxy resin, alcohol having 1 to 5 carbon atoms, and organic pigment;
A colored layer drying step of drying the stone subjected to the second coloring step with stirring at 300 to 3000 RPM;
A coating step of coating the stone subjected to the coloring layer drying step with a coating solution containing an acrylic resin and titanium dioxide while stirring at 300 to 3000 RPM and
And a coating layer drying step in which the coated stone is dried with stirring at 300 to 3000 RPM according to the coating step
Colored color sand using a stone coloring composition.