A hydrophilic high-density stone-like material and a preparation method thereof

By combining white stone paint base with multi-colored tinted paint, the problem of easy contamination on the surface of stone paint is solved, achieving self-cleaning and stain resistance, simplifying construction, and improving decorative effect and environmental performance.

CN122103933APending Publication Date: 2026-05-29LANGFANG NIPPON PAINT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LANGFANG NIPPON PAINT CO LTD
Filing Date
2024-11-27
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing stone paint surfaces are easily contaminated and difficult to clean with rainwater or by hand, affecting the aesthetics of buildings. Moreover, the construction is complex and requires additional topcoat varnish treatment.

Method used

A highly hydrophilic and dense imitation stone material is formulated using white stone paint base and multi-colored tinted paint. The tinted paint seals the gaps in the stone paint, giving it anti-fouling and self-cleaning capabilities, thus avoiding the need for additional topcoat varnish.

Benefits of technology

It achieves the self-cleaning ability of real stone paint, improves stain resistance and decorative effect, simplifies construction procedures, saves costs and time, and keeps buildings clean and beautiful.

✦ Generated by Eureka AI based on patent content.

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Abstract

The hydrophilic high-density stone-like material and the preparation method thereof belong to the technical field of exterior wall decoration coatings. The hydrophilic high-density stone-like material is prepared from a white real stone paint base and a colorful toning paint. The weight ratio of the white real stone paint base and the colorful toning paint is preferably 95:5, 90:10, 85:15 or 80:20. The real stone paint can imitate the decorative effect of natural stone, and does not need to use natural color sand, so it is friendly to the environment. The added toning colorful paint has hydrophilicity, can close the gaps of the real stone paint while toning, and endows the real stone paint with unique stain resistance and self-cleaning ability, without the need of additional use of a matching topcoat varnish. The real stone paint not only maintains the traditional decorative effect, but also has stronger stain resistance and self-cleaning ability, can effectively prevent atmospheric pollutants from polluting and eroding the surface of the real stone paint, maintains the cleanliness and beauty of the building surface, and brings a continuous good experience to urban life.
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Description

Technical Field

[0001] This invention belongs to the field of exterior wall decorative coating technology, specifically relating to a hydrophilic, highly dense, stone-like material and its preparation method. Background Technology

[0002] Stone-like paint, also known as imitation stone paint or crushed stone paint, is a sand-textured coating made using natural crushed stone as a colorant, polymer emulsion as a binder, and various additives. Its decorative effect resembles natural granite and marble, giving it a dignified and elegant aesthetic.

[0003] Compared to traditional marble and glazed ceramic tiles, stone-like paint not only solves the problems of construction complexity and risk of peeling in exterior wall applications, but also provides a wide variety of decorative effects. Furthermore, stone-like paint is characterized by low cost, safety and pollution-free properties, durability, and superior stone-like effect, thus gaining widespread application in the coatings industry and being highly favored by consumers both domestically and internationally. As an exterior wall coating, stone-like paint films are exposed to wind and sunlight, making it crucial that the film resists external pollution and maintains its aesthetic appeal. Due to the textured, uneven surface of stone-like paint, it provides a substrate for the deposition and intrusion of external pollutants. Contaminated stone-like paint surfaces are difficult to clean with rainwater or manual methods, significantly impacting the building's aesthetics. Therefore, researching a stone-like paint that is easy to apply and has good self-cleaning capabilities is particularly important. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the prior art and provide a hydrophilic, highly dense stone-like material and its preparation method. The technical solution of this invention uses white stone-like paint as a base, and modulates the stone-like paint to achieve the desired color using multi-color tinting paint (or by mixing multiple prepared single-color paints). The stone-like paint of this invention can mimic the decorative effect of natural stone and does not require the use of natural colored sand, thus being environmentally friendly. Simultaneously, the added multi-color tinting paint is hydrophilic, which, while color mixing, can seal the gaps in the stone-like paint, giving it unique stain resistance and self-cleaning capabilities, eliminating the need for an additional topcoat. Thus, this stone-like paint not only maintains the traditional decorative effect but also has stronger stain resistance and self-cleaning ability, effectively preventing atmospheric pollutants from contaminating and eroding the surface of the stone-like paint, maintaining the cleanliness and beauty of building surfaces, and bringing a continuously pleasant experience to urban life.

[0005] The first objective of this invention is:

[0006] A hydrophilic, highly dense imitation stone material is provided, which is formulated from white real stone paint base and multi-color tinted paint.

[0007] A further optimization of the hydrophilic, highly dense, stone-like material of the present invention is as follows:

[0008] The weight ratio of the white stone-like paint base to the multi-color tinted paint is 95:5, 90:10, 85:15 or 80:20.

[0009] A further optimization of the hydrophilic, highly dense, stone-like material of the present invention is as follows:

[0010] The white stone-like paint base material comprises the following raw material components in parts by weight:

[0011] 10-15 parts water, 0.05-0.2 parts hydroxyethyl cellulose, 0.05-0.2 parts pH adjuster, 10-15 parts silicone-acrylic emulsion, 0.1-0.4 parts defoamer, 0.5-1.0 parts film-forming aid, 0.2-0.7 parts antifreeze, 0.05-0.3 parts thickener, 0.05-0.2 parts bactericide, 70-75 parts crystalline white sand, totaling 100 parts by weight;

[0012] The multicolor tinted paint comprises the following raw material components in parts by weight:

[0013] 8-15 parts of protective colloid solution, 15-25 parts of continuous phase emulsion, 30-40 parts of crystal white sand, 25-40 parts of tinted base paint, 0-5 parts of deionized water, and a total weight of 100 parts.

[0014] The protective adhesive solution comprises: 5-10 parts of protective adhesive, 90-95 parts of deionized water, and a total weight of 100 parts.

[0015] The base paint for color matching consists of: 20-25 parts emulsion, 1.5-8 parts pigments and fillers, 0.5-5 parts cosolvent, 0.5-5 parts additives, 20-30 parts white sand, 5-10 parts protective colloid solution, and deionized water to make up the balance, for a total weight of 100 parts.

[0016] The pigments and fillers include color pastes and fillers;

[0017] The continuous phase emulsion comprises: 40-60 parts emulsion, 0.5-5 parts cosolvent, 0.5-5 parts additive, and deionized water to make up the balance, for a total weight of 100 parts.

[0018] A further optimization of the hydrophilic, highly dense, stone-like material of the present invention is as follows:

[0019] The white stone-like paint base material includes one or more of the following technical features:

[0020] The hydroxyethyl cellulose is a nonionic, water-soluble cellulose ether, which provides good flowability and thixotropy in coatings;

[0021] The pH adjuster is one or a combination of ammonia or AMP-95;

[0022] The silicone-acrylic emulsion is an organosilicon-modified acrylic emulsion;

[0023] The defoamer is a mineral oil-based defoamer, preferably mineral oil-based defoamer NXZ;

[0024] The film-forming aid is dodecyl alcohol ester;

[0025] The antifreeze agent is one or a combination of propylene glycol and ethylene glycol;

[0026] The thickener is a hydrophobically modified polyurethane thickener, which provides thixotropy to the coating and increases its anti-sagging ability;

[0027] The bactericide mentioned is an isothiazolinone bactericide;

[0028] A further optimization of the hydrophilic, highly dense, stone-like material of the present invention is as follows:

[0029] The aforementioned multicolor tinted paint includes one or more of the following technical features:

[0030] The main component of the protective adhesive is synthetic flake magnesium aluminum silicate;

[0031] The emulsion in the tinting base paint and the continuous phase emulsion is one or a combination of several of styrene-acrylic emulsion, pure acrylic emulsion, and silicone-acrylic emulsion;

[0032] The additives in the tinted base paint and continuous phase emulsion are one or a combination of several of the following: thickener, dispersant, defoamer, pH adjuster, film-forming aid, antifreeze and bactericide.

[0033] A further optimization of the hydrophilic, highly dense, stone-like material of the present invention is as follows:

[0034] Additives in the tinting base paint and continuous phase emulsion:

[0035] The thickener is one or a combination of hydroxyethyl cellulose and alkali-swellable thickeners;

[0036] The dispersant is one or a combination of ammonium polyacrylate and sodium polyacrylate.

[0037] The defoamer is one or a combination of mineral oil-based defoamers and organosilicon defoamers;

[0038] The pH adjuster mentioned is AMP95;

[0039] The film-forming aid is dodecyl alcohol ester;

[0040] The antifreeze agent is one or a combination of propylene glycol and ethylene glycol;

[0041] The bactericide mentioned is an isothiazolinone bactericide.

[0042] The second objective of this invention is:

[0043] A method for preparing the aforementioned hydrophilic, highly dense, stone-like material is provided:

[0044] White stone paint base and multi-color tinted paint are added to the production tank in proportion and mixed evenly with a ribbon at low speed to obtain the hydrophilic high-density imitation stone material.

[0045] The method for preparing the hydrophilic, highly dense, stone-like material of the present invention is further optimized as follows:

[0046] The white stone-like paint base material includes the following preparation steps:

[0047] A. Add water and hydroxyethyl cellulose to the production vessel in proportion, and stir at 300-600 r / min at room temperature until uniform and free of lumps;

[0048] B. Add pH adjuster to the container in step A, adjust the speed to 800-1000 r / min, and stir for 5-8 min;

[0049] C. Reduce the rotation speed to 300 r / min, add silicone-acrylic emulsion, defoamer, film-forming aid, antifreeze and bactericide to the container in sequence, and then increase the rotation speed to 600-800 r / min and stir for 10 min;

[0050] D. After mixing well, add the thickener and stir for 3 minutes;

[0051] E. Reduce the rotation speed to 300-600 r / min, add crystalline white sand, and disperse evenly to obtain the white stone paint base material.

[0052] The method for preparing the hydrophilic, highly dense, stone-like material of the present invention is further optimized as follows:

[0053] The multi-color tinted paint includes the following preparation steps:

[0054] a. Preparation of protective colloid solution: The protective colloid is slowly added to deionized water according to the ratio, and then dispersed at 1500 rpm to 3000 rpm for 30 min to obtain the protective colloid solution. Let it stand for 24 h for later use.

[0055] b. Preparation of the base paint for color matching: Add the additives and fillers from the pigments and fillers to deionized water according to the proportion and disperse at 1000 rpm to 1500 rpm for 20 min. Then add the emulsion and co-solvent, disperse at 800 rpm to 1000 rpm for 10 min, then add white sand, the protective colloid solution prepared in step a, and the color paste. Disperse and stir at 800 rpm to 1000 rpm for 10 min until uniform to obtain the base paint for color matching. The corresponding single-color color paste can be added according to the color matching needs to prepare the required single-color base paint.

[0056] c. Preparation of continuous phase emulsion: The emulsion, cosolvent, additive and deionized water are mixed uniformly at 800 rpm to 1000 rpm to prepare the continuous phase emulsion.

[0057] d. Preparation of multicolor tinted paint: The protective colloid solution and deionized water prepared in step a are mixed evenly at a speed of 800 rpm to 1000 rpm, and the base paint for tinting is added. The color dots are cut to the appropriate size according to the requirements using a dispersion disc. Then the continuous phase emulsion and crystalline white sand prepared in step c are added and stirred evenly at low speed to prepare multicolor tinted paint.

[0058] This invention relates to a hydrophilic, high-density stone-like material and its preparation method. This stone-like material possesses the decorative effect of marble and granite, is tinted using multi-color paint, eliminates the need for natural colored sand, and exhibits excellent environmental performance. Simultaneously, this stone-like paint also possesses hydrophilicity and good sealing properties, demonstrating superior stain resistance and self-cleaning capabilities, effectively preventing airborne pollutants from adversely affecting the building's appearance. The hydrophilic, high-density stone-like material of this invention requires no additional surface treatment. In construction applications, it not only simplifies the construction process but also saves labor and time costs, thereby accelerating the construction of beautiful cities. Attached Figure Description

[0059] Figures 1-2 This is a comparison diagram showing the effects of the hydrophilic, high-density imitation stone material of the present invention and traditional real stone paint;

[0060] Figures 3-4 This is a comparison diagram of the stain resistance of the hydrophilic high-density imitation stone material of the present invention and traditional real stone paint;

[0061] Figure 5 This is a comparison diagram of the outdoor stain resistance of the hydrophilic high-density imitation stone material of the present invention and traditional real stone paint;

[0062] Figure 6 This is a comparison chart of the QUVA1300h weather resistance test results of the hydrophilic high-density imitation stone material of the present invention and traditional real stone paint.

[0063] Figure 7 This is a comparison chart of the mechanical stability test results of the hydrophilic high-density imitation stone material of the present invention, traditional real stone paint, and Comparative Example 4. Detailed Implementation

[0064] To make the application, technical solution, and advantages of this invention clearer, the invention is described in detail with reference to specific embodiments. It should be understood that the embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this invention. Any simple improvements to the preparation method of this invention based on the inventive concept fall within the scope of protection of this invention.

[0065] Example 1

[0066] A method for preparing a hydrophilic, highly dense stone-like material involves adding white real stone paint base and multi-color tinting paint in a production tank in a specific ratio, and mixing them evenly using a ribbon at low speed to obtain the hydrophilic, highly dense stone-like material.

[0067] The white stone-like paint base material includes the following preparation steps:

[0068] A. Add water and hydroxyethyl cellulose to the production vessel in proportion, and stir at 300-600 r / min at room temperature until uniform and free of lumps;

[0069] B. Add pH adjuster to the container in step A, adjust the speed to 800-1000 r / min, and stir for 5-8 min;

[0070] C. Reduce the rotation speed to 300 r / min, add silicone-acrylic emulsion, defoamer, film-forming aid, antifreeze and bactericide to the container in sequence, and then increase the rotation speed to 600-800 r / min and stir for 10 min;

[0071] D. After mixing well, add the thickener and stir for 3 minutes;

[0072] E. Reduce the rotation speed to 300-600 r / min, add crystalline white sand, and disperse evenly to obtain the white stone paint base material.

[0073] The multi-color tinted paint includes the following preparation steps:

[0074] a. Preparation of protective colloid solution: The protective colloid is slowly added to deionized water according to the ratio, and then dispersed at 1500 rpm to 3000 rpm for 30 min to obtain the protective colloid solution. Let it stand for 24 h for later use.

[0075] b. Preparation of tinted base paint: Add the additives and fillers from the pigments and fillers to deionized water according to the proportion and disperse at 1000 rpm to 1500 rpm for 20 min. Then add the emulsion and co-solvent and disperse at 800 rpm to 1000 rpm for 10 min. Then add white sand, the protective colloid solution prepared in step a, and the color paste. Disperse and stir at 800 rpm to 1000 rpm for 10 min until uniform to prepare the tinted base paint.

[0076] c. Preparation of continuous phase emulsion: The emulsion, cosolvent, additive and deionized water are mixed uniformly at 800 rpm to 1000 rpm to prepare the continuous phase emulsion.

[0077] d. Preparation of multicolor tinted paint: The protective colloid solution and deionized water prepared in step a are mixed evenly at a speed of 800 rpm to 1000 rpm, and the base paint for tinting is added. The color dots are cut to the appropriate size according to the requirements using a dispersion disc. Then the continuous phase emulsion and crystalline white sand prepared in step c are added and stirred evenly at low speed to prepare multicolor tinted paint.

[0078] The preparation methods of Examples 2 and 3 are the same as those of Example 1, the main difference being the amount of specific raw materials used, as detailed in Tables 1 and 2.

[0079] Comparative Example 1

[0080] Comparative Example 1 is ordinary stone paint purchased from the market.

[0081] Comparative Example 2

[0082] The method involves using a combination of ordinary stone paint and multi-color tinted paint. In actual construction, the stone paint is applied first, followed by the application of multi-color tinted paint.

[0083] Comparative Example 3

[0084] The method involves mixing ordinary stone paint and ordinary multicolor tinted paint. Before actual construction, the ordinary stone paint and ordinary multicolor tinted paint are mixed according to the proportions in the example, and then applied on-site.

[0085] Comparative Example 4

[0086] The preparation method of Comparative Example 4 is the same as that of Example 1. The main difference is that the ratio of white stone paint base to multicolor tinted paint in Comparative Example 4 is 70:30.

[0087] Table 1. Raw material composition (parts by weight) of the hydrophilic, high-density imitation stone material in the embodiments.

[0088]

[0089] Table 2 shows the specific composition (parts by weight) of each component in the embodiments.

[0090]

[0091]

[0092] The products prepared according to Examples 1-3 and Comparative Example 1 were tested using the stain resistance test method in the standard JG / T 24-2018 Synthetic Resin Emulsion Sand-textured Architectural Coatings. The test results were as follows: the stain resistance of ordinary stone paint on the market was level 2, and the matching topcoat was level 1. The stain resistance of the hydrophilic high-density imitation stone material of Examples 1-3 was level 0 (without the matching topcoat, it was level 0-1, which is close to the stain resistance of ordinary stone paint with matching topcoat varnish). This shows that the hydrophilic high-density imitation stone material of the present invention has a very good stain resistance effect. Those skilled in the art can verify the stain resistance effect of the invention according to the above standards.

[0093] Comparative Example 1: Effects of Commercially Available Ordinary Stone Paint Compared to the Examples ( Figures 1-2 ), stain resistant Figures 3-5 ), weather resistance ( Figure 6 For detailed test results, please refer to [link / reference]. Figures 1-6 The weather resistance test results are detailed in Table 3.

[0094] Table 3 Weather resistance test results

[0095]

[0096]

[0097] According to QUVA test results, adding a tinting base paint to white stone paint can improve its weather resistance. Adding 5% can improve chalking, and adding 10-20% can improve the discoloration level. Compared with traditional stone paint, the technical solution of this invention can improve the weather resistance and durability of stone paint.

[0098] The application of ordinary stone-like paint followed by multi-color paint, as described in Examples 2 and 3, is a common construction method. However, this technical solution differs significantly from this method. Applying stone-like paint first, followed by a layer of multi-color paint, creates a textured effect, where the stone-like paint enhances the multi-color texture, ultimately achieving a granite-like appearance. However, this method fails to achieve the desired effect of the present invention. Furthermore, since multi-color paint itself has good stain resistance, applying it over stone-like paint essentially results in the final product showcasing the stain resistance of the multi-color paint rather than the stone-like paint itself.

[0099] Traditional stone paint uses natural colored sand for color mixing. This technical solution uses a white stone paint base, and then uses multi-color paints of different color systems (such as red, yellow, black, blue, etc.) to color the white stone paint base, achieving the same or even better effect as traditional stone paint, and has the following advantages:

[0100] (1) It can avoid environmental damage caused by over-mining of natural colored sand;

[0101] (2) On-site color matching is possible. Multi-color paint can be prepared into color matching packets, which can be added and stirred evenly on-site.

[0102] (3) Figures 3-6 As shown: When compounded with multi-color tinted paint, compared to traditional stone paint, its weather resistance and stain resistance are significantly improved. However, there are certain limitations to the compounding ratio; otherwise, color change will occur during stirring. For example, in Comparative Example 4, when the weight ratio of white stone paint base to multi-color tinted paint is 70:30, color change occurs during stirring. Figure 7 .

[0103] In summary, the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any changes, modifications, and evolutions made by those skilled in the art without departing from the scope of the present invention based on the disclosed technical content shall be considered equivalent embodiments of the present invention. Furthermore, any changes, modifications, and evolutions made to the above embodiments based on the essential technology of the present invention shall still fall within the protection scope of the present invention.

[0104] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0105] Experimental methods not specified in this invention are generally performed under conventional conditions or as recommended by the manufacturer.

[0106] Unless otherwise stated, the various optimized technical solutions in this invention can be combined with each other.

[0107] Unless otherwise stated, percentages and parts are weight percentages and weight parts.

[0108] Experimental methods not specified in the instructions and examples are generally performed under standard conditions or as recommended by the manufacturer.

[0109] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as are familiar to those skilled in the art. Furthermore, any methods and materials similar to or equivalent to those described herein may be used in the methods of this invention.

Claims

1. A hydrophilic, highly dense, stone-like material, characterized in that: It is made from white stone paint base and multi-color tinted paint.

2. The hydrophilic, highly dense, stone-like material according to claim 1, characterized in that: The weight ratio of white stone paint base to multicolor tinted paint is 95:5, 90:10, 85:15, or 80:

20.

3. The hydrophilic, highly dense, stone-like material according to claim 1, characterized in that: The white stone-like paint base material comprises the following raw material components in parts by weight: 10-15 parts water, 0.05-0.2 parts hydroxyethyl cellulose, 0.05-0.2 parts pH adjuster, 10-15 parts silicone-acrylic emulsion, 0.1-0.4 parts defoamer, 0.5-1.0 parts film-forming aid, 0.2-0.7 parts antifreeze, 0.05-0.3 parts thickener, 0.05-0.2 parts bactericide, 70-75 parts crystalline white sand, totaling 100 parts by weight; The multicolor tinted paint comprises the following raw material components in parts by weight: 8-15 parts of protective colloid solution, 15-25 parts of continuous phase emulsion, 30-40 parts of crystal white sand, 25-40 parts of tinted base paint, 0-5 parts of deionized water, and a total weight of 100 parts. The protective adhesive solution comprises: 5-10 parts of protective adhesive, 90-95 parts of deionized water, and a total weight of 100 parts. The base paint for color matching consists of: 20-25 parts emulsion, 1.5-8 parts pigments and fillers, 0.5-5 parts cosolvent, 0.5-5 parts additives, 20-30 parts white sand, 5-10 parts protective colloid solution, and deionized water to make up the balance, for a total weight of 100 parts. The pigments and fillers include color pastes and fillers; The continuous phase emulsion comprises: 40-60 parts emulsion, 0.5-5 parts cosolvent, 0.5-5 parts additive, and deionized water to make up the balance, for a total weight of 100 parts.

4. The hydrophilic, highly dense, stone-like material according to claim 3, characterized in that: The white stone-like paint base material includes one or more of the following technical features: The hydroxyethyl cellulose is a nonionic, water-soluble cellulose ether; The pH adjuster is one or a combination of ammonia or AMP-95; The silicone-acrylic emulsion is an organosilicon-modified acrylic emulsion; The defoamer mentioned is a mineral oil-based defoamer; The film-forming aid is dodecyl alcohol ester; The antifreeze agent is one or a combination of propylene glycol and ethylene glycol; The thickener is a hydrophobically modified polyurethane thickener; The bactericide mentioned is an isothiazolinone bactericide.

5. The hydrophilic, highly dense, stone-like material according to claim 3, characterized in that: The aforementioned multicolor tinted paint includes one or more of the following technical features: The main component of the protective adhesive is synthetic flake magnesium aluminum silicate; The emulsion in the tinting base paint and the continuous phase emulsion is one or a combination of several of styrene-acrylic emulsion, pure acrylic emulsion, and silicone-acrylic emulsion; The additives in the tinted base paint and continuous phase emulsion are one or a combination of several of the following: thickener, dispersant, defoamer, pH adjuster, film-forming aid, antifreeze and bactericide.

6. The hydrophilic, highly dense, stone-like material according to claim 5, characterized in that: Additives in the tinting base paint and continuous phase emulsion: The thickener is one or a combination of hydroxyethyl cellulose and alkali-swellable thickeners; The dispersant is one or a combination of ammonium polyacrylate and sodium polyacrylate. The defoamer is one or a combination of mineral oil-based defoamers and organosilicon defoamers; The pH adjuster mentioned is AMP95; The film-forming aid is dodecyl alcohol ester; The antifreeze agent is one or a combination of propylene glycol and ethylene glycol; The bactericide mentioned is an isothiazolinone bactericide.

7. A method for preparing the hydrophilic, highly dense, stone-like material according to claim 3, characterized in that: White stone paint base and multi-color tinted paint are added to the production tank in proportion and mixed evenly with a ribbon at low speed to obtain the hydrophilic high-density imitation stone material.

8. A method for preparing the hydrophilic, highly dense, stone-like material according to claim 7, characterized in that: The white stone-like paint base material includes the following preparation steps: A. Add water and hydroxyethyl cellulose to the production vessel in proportion, and stir at 300-600 r / min at room temperature until uniform and free of lumps; B. Add pH adjuster to the container in step A, adjust the speed to 800-1000 r / min, and stir for 5-8 min; C. Reduce the rotation speed to 300 r / min, add silicone-acrylic emulsion, defoamer, film-forming aid, antifreeze and bactericide to the container in sequence, and then increase the rotation speed to 600-800 r / min and stir for 10 min; D. After mixing well, add the thickener and stir for 3 minutes; E. Reduce the rotation speed to 300-600 r / min, add crystalline white sand, and disperse evenly to obtain the white stone paint base material.

9. A method for preparing the hydrophilic, highly dense, stone-like material according to claim 7, characterized in that: The multi-color tinted paint includes the following preparation steps: a. Preparation of protective colloid solution: The protective colloid is slowly added to deionized water according to the ratio, and then dispersed at 1500 rpm to 3000 rpm for 30 min to obtain the protective colloid solution. Let it stand for 24 h for later use. b. Preparation of tinted base paint: Add the additives and fillers from the pigments and fillers to deionized water according to the proportion and disperse at 1000 rpm to 1500 rpm for 20 min. Then add the emulsion and co-solvent and disperse at 800 rpm to 1000 rpm for 10 min. Then add white sand, the protective colloid solution prepared in step a, and the color paste. Disperse and stir at 800 rpm to 1000 rpm for 10 min until uniform to prepare the tinted base paint. c. Preparation of continuous phase emulsion: The emulsion, cosolvent, additive and deionized water are mixed uniformly at 800 rpm to 1000 rpm to prepare the continuous phase emulsion. d. Preparation of multicolor tinted paint: The protective colloid solution and deionized water prepared in step a are mixed evenly at a speed of 800 rpm to 1000 rpm, and the base paint for tinting is added. The color dots are cut to the appropriate size according to the requirements using a dispersion disc. Then the continuous phase emulsion and crystalline white sand prepared in step c are added and stirred evenly at low speed to prepare multicolor tinted paint.