Antiviral dry powder art paint, and preparation method therefor and use thereof

Abstract

An antiviral dry powder art paint, and a preparation method therefor and the use thereof. The antiviral dry powder art paint comprises 1%-5% of Chinese herbal medicine powder. The Chinese herbal medicine powder comprises Lonicerae japonicae flos, Forsythiae fructus, Chrysanthemi indici flos, Isatidis radix, Taraxaci herba, Artemisiae argyi folium, Pogostemonis herba, Acori tatarinowii rhizoma, Caryophylli flos, Cinnamomi ramulus, Chuanxiong rhizoma, Eupatorii herba and borneol. The antiviral dry powder art paint comprises 0.1%-0.5% of thickener, 0.1%-0.3% of cellulose, 0.1%-0.3% of dispersant, 0.1%-0.3% of wetting agent, 0.05%-0.2% of defoaming agent, 0.5%-5% of titanium dioxide, 1%-5% of Chinese herbal medicine powder, 10%-20% of ground calcium carbonate powder, 20%-35% of gypsum powder, 43.5%-57.65% of quartz sand, 0.5%-3% of adhesive and 0.05%-0.3% of retarder. The antiviral dry powder art paint does not contain harmful substances, is non-combustible, has higher environmental protection performance, good coating film texture and higher artistic quality, is convenient and quick, and has cost effectiveness.

Description

An antiviral dry powder art paint and its preparation method and application Technical Field

[0001] This article relates to coating technology, in particular to an antiviral dry powder art coating and its preparation method and application. Background Art

[0002] Currently, interior walls are commonly coated with a coating system consisting of one to two coats of plaster, two to three coats of interior putty, one coat of primer, and two coats of interior latex paint. This coating system requires numerous application coats, strict requirements for the smoothness and roughness of each coat, and exceptionally high technical skills from the construction workers, resulting in a relatively high cost per square meter. Furthermore, due to the widespread global spread of the COVID-19 pandemic over the past two years, several major domestic and international paint companies have introduced antiviral coatings, which have gained widespread popularity. Most current antiviral coatings achieve their antiviral properties by adding additives containing silver and copper ions. This approach can easily lead to excessive levels of heavy metals in the paint. The addition of copper ions also results in a yellowish coating film. Furthermore, the coating film's monotonous appearance fails to meet the personalized decorative needs of consumers.

[0003] SUMMARY OF THE INVENTION

[0004] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0005] This application provides an antiviral dry powder art paint, its preparation method, and application. The antiviral dry powder art paint provided in this application does not contain harmful substances, is non-flammable, has higher environmental performance, has good coating texture, is more artistic, is convenient, fast, and cost-effective.

[0006] In an embodiment of the present application, an antiviral dry powder art paint is provided, which includes 1-5% Chinese herbal medicine powder; and the Chinese herbal medicine powder includes: honeysuckle, forsythia, wild chrysanthemum, isatis root, dandelion, mugwort, patchouli, calamus, clove, cassia twig, Chuanxiong, perilla, and borneol.

[0007] In some embodiments of the present application, the Chinese herbal medicine powder may include: 13-17% honeysuckle, 13-17% forsythia, 4-8% wild chrysanthemum, 4-8% isatis root, 4-8% dandelion, 8-12% mugwort, 4-8% patchouli, 13-17% calamus, 3-7% clove, 3-7% cassia twig, 3-7% ligusticum, 3-7% euphrasia officinalis, and 0.1-3% borneol.

[0008] In some embodiments of the present application, the Chinese herbal medicine powder may include: 15% honeysuckle, 15% forsythia, 6% wild chrysanthemum, 6% isatis root, 6% dandelion, 10% mugwort, 6% patchouli, 15% calamus, 5% clove, 5% cassia twig, 5% ligusticum, 5% euphrasia officinalis, and 1% borneol.

[0009] Honeysuckle, Forsythia suspensa, Chrysanthemum indicum, Isatis root, Dandelion, Clove, Cinnamon twig, Cyperus rotundus, Patchouli, Acorus calamus, and Ligusticum chuanxiong use the same TCM names as those in the 2020 edition of the Chinese Pharmacopoeia (see: https: / / zhiku.bopuyun.com / pc / book / 4?zch=QJNK8a,seobds).

[0010] The borneol may be selected from any one of D-borneol, L-borneol and synthetic borneol.

[0011] In some embodiments of the present application, an antiviral dry powder art paint is provided. The antiviral dry powder art paint may include the following components by weight percentage:

[0012] Thickener 0.1-0.8%, cellulose 0.1-0.6%, dispersant 0.1-0.6%, wetting agent 0.1-0.6%, defoamer 0.05-0.5%, titanium dioxide 0.5-8%, Chinese herbal medicine powder 1-5%, heavy calcium powder 10-30%, gypsum powder 20-45%, quartz sand 43.5-67.65%, adhesive 0.5-6%, retarder 0.05-0.6%.

[0013] In an embodiment of the present application, an antiviral dry powder art paint is provided. The antiviral dry powder art paint may include the following components by weight percentage:

[0014] Thickener 0.1-0.5%, cellulose 0.1-0.3%, dispersant 0.1-0.3%, wetting agent 0.1-0.3%, defoaming agent 0.05-0.2%, titanium dioxide 0.5-5%, Chinese herbal medicine powder 1-5%, heavy calcium powder 10-20%, gypsum powder 20-35%, quartz sand 43.5-57.65%, adhesive 0.5-3%, retarder 0.05-0.3%.

[0015] In some embodiments of the present application, the thickener may be calcium bentonite. The calcium bentonite may be highly purified modified calcium bentonite. Bentonite manufacturers (e.g., Xuanhua Yanbei Mining Co., Ltd.) remove impurities such as iron and magnesium from the raw calcium bentonite through a flotation process to produce highly purified calcium bentonite, thereby improving the whiteness of the product and preparing for subsequent modification. Highly purified calcium bentonite and soda ash are uniformly mixed and stirred in a mixer at a weight ratio of 9:1 to produce highly purified modified calcium bentonite.

[0016] In some embodiments of the present application, the cellulose may be propyl methylcellulose. The propyl methylcellulose may be powdered hydroxypropyl methylcellulose with a viscosity of 30,000 to 200,000 centipoise.

[0017] The cellulose viscosity test method is as follows: add 98 parts of pure water to a container, add powdered hydroxypropyl methylcellulose in a thin stream under low-speed stirring (300-500 rpm), stir for 30 minutes to form a uniform transparent solution, and then use a Brookfield viscometer to measure the Brookfield viscosity of the cellulose aqueous solution using a 64# rotor.

[0018] In some embodiments of the present application, the dispersant may be potassium polyphosphate. The potassium polyphosphate may be powdered potassium polyphosphate with a particle size of 400 mesh or more.

[0019] In some embodiments of the present application, the wetting agent may be a polyoxyethylene ether material. The polyoxyethylene ether material may be a powdered polyoxyethylene ether material that does not contain APEO substances and other limited substances specified in GB18582.

[0020] In some embodiments of the present application, the defoaming agent may be an organosiloxane. The organosiloxane may be a powdered organosiloxane with a particle size of 300 mesh or more.

[0021] In some embodiments of the present application, the titanium dioxide may be rutile, with a particle size of 325 mesh or greater.

[0022] In some embodiments of the present application, the particle size of the heavy calcium powder may be 250-325 mesh.

[0023] In some embodiments of the present application, the gypsum powder can be industrially produced gypsum waste residue or natural gypsum crushed to a size of 250-400 mesh.

[0024] In some embodiments of the present application, the quartz sand may be a raw material obtained by crushing white natural ore with a mesh size of 20-200.

[0025] In some embodiments of the present application, the adhesive may be a separate VAE latex powder, a separate PVA latex powder, or both.

[0026] In some embodiments of the present application, the retarder may be a protein powder material with a particle size of 800-1000 mesh.

[0027] In some embodiments of the present application, the Chinese herbal medicine powder may be a crushed mixture.

[0028] In some embodiments of the present application, the highly purified modified calcium bentonite may have a diameter of 0.4-0.6 cm 3 / g effective pore volume.

[0029] In some embodiments of the present application, the antiviral dry powder art paint may also include organic pigments and inorganic pigments specifically for water-based paints, wherein the organic pigments are phthalocyanine blue, phthalocyanine green, bright red, medium yellow, carbon black, etc., and the inorganic pigments are iron oxide red, iron oxide yellow, and iron oxide black.

[0030] In an embodiment of the present application, a method for preparing the above-mentioned antiviral dry powder art paint is provided, and the preparation method may include the following steps:

[0031] (1) crushing the Chinese herbal medicine according to a certain proportion to obtain Chinese herbal medicine powder for later use;

[0032] (2) storing thickener, cellulose, dispersant, wetting agent, defoamer, titanium dioxide, Chinese herbal medicine powder, heavy calcium powder, gypsum powder, quartz sand, adhesive, and retarder in respective storage silos;

[0033] (3) transporting the gypsum powder, the heavy calcium powder, and the titanium dioxide into a dry powder mixer;

[0034] (4) conveying the thickener, the cellulose, the dispersant, the wetting agent, the defoaming agent, the Chinese herbal medicine powder, the adhesive, and the retarder into a dry powder mixer and continuing to stir;

[0035] (5) transporting quartz sand to a dry powder mixer;

[0036] (6) Then continue stirring for 3-5 minutes and then stop. After passing the test, package.

[0037] In some embodiments of the present application, step (3) can be carried out by a screw conveyor.

[0038] In some embodiments of the present application, the dry powder mixer in step (3) may be in a stirring state.

[0039] In some embodiments of the present application, the Chinese herbal medicine powder can be obtained by the following steps:

[0040] (a) Cutting the long components of dried Chinese herbal medicines consisting of 15% honeysuckle, 15% forsythia, 6% wild chrysanthemum, 6% isatis root, 6% dandelion, 10% wormwood, 6% patchouli, 15% calamus, 5% clove, 5% cassia twig, 5% ligusticum, 5% euphrasia officinalis, and 1% borneol into 2-5 cm segments;

[0041] (b) conveying the Chinese herbal medicines from step (a) into a micronizer for pulverization to obtain Chinese herbal medicine powder;

[0042] (c) transporting the Chinese herbal medicine powder to a cyclone separation device, recycling the dust in the Chinese herbal medicine powder through a dust removal device, and transporting the Chinese herbal medicine powder to a Chinese herbal medicine powder packaging process for packaging and standby use.

[0043] In some embodiments of the present application, the cutting in step (a) can be performed in a cutting machine.

[0044] In some embodiments of the present application, the conveying in step (b) can be performed by a belt conveyor or a screw conveyor.

[0045] In some embodiments of the present application, the pulverization in step (b) can be performed for about 15-20 minutes to obtain Chinese herbal medicine powder with a mesh size of 100-400.

[0046] In an embodiment of the present application, the above-mentioned antiviral dry powder art paint is provided for use in building decoration.

[0047] Unless otherwise specified, percentages in this application refer to percentages by weight.

[0048] Compared with the related art, the present application does not contain VOC components, does not contain harmful substances specified in the GB18582--2020 standard, and is non-flammable. Compared with liquid coating products, it has higher environmental performance and good coating texture. It can be applied into different styles of coatings such as relief, imitation bricks, imitation bark, and roughening. It is more artistic and improves the grade of wall decoration. Putty and topcoat can be eliminated, reducing the comprehensive cost of labor and materials. Different colors can be adjusted by adding pigments. Adding gypsum powder to the paint can autonomously adjust the indoor humidity and reduce the cracking of the coating compared with the existing putty, and gypsum has an auxiliary antiviral function. This application combines the traditional Chinese anti-plague prescription literature, selects a variety of Chinese herbal medicines and adds them to the paint to form an effective antiviral and epidemic prevention coating to achieve an antiviral and epidemic prevention effect, and the Chinese herbal medicine powder is non-toxic, harmless, safe and environmentally friendly.

[0049] Other features and advantages of the present application will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present application. Other advantages of the present application can be realized and obtained by the solutions described in the description and the drawings.

[0050] Summary of the Figures

[0051] The accompanying drawings are used to provide an understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0052] Figure 1 shows the preparation process of Chinese herbal medicine powder; 21 is a Chinese herbal medicine cutting machine, 22 is a micronizer, 23 is a cyclone separation device, and 24 is a dust removal device.

[0053] The device used in Figure 1 is purchased from Shandong Jingxin Powder Equipment Co., Ltd., or equipment with appropriate production capacity can be selected according to the daily amount of Chinese herbal medicine powder.

[0054] Figure 2 is a preparation process diagram of antiviral Chinese herbal dry powder art paint; 1 is a gypsum powder storage bin, 2 is a heavy calcium powder storage bin, 3 is a quartz sand storage bin, 4 is a titanium dioxide storage bin, 5 is a Chinese medicine powder storage bin, 6 is an adhesive storage bin, 7 is a thickener storage bin, 8 is a cellulose storage bin, 9 is a dispersant storage bin, 10 is a wetting agent storage bin, 11 is a defoaming agent storage bin, 12 is a retarder storage bin, 13 is a measuring scale, 14 is a measuring scale, and 15 is a dry powder mixer.

[0055] In Figure 2, silos 1-12 are non-standard products and are purchased from Suzhou Yigong Machinery Co., Ltd. The following table lists the specifications and models of each piece of equipment: For example, a 50-ton daily production unit of antiviral Chinese herbal dry powder art paint is used.

[0056] [Corrected 05.11.2024 in accordance with Article 26]

[0057] Details

[0058] To make the purpose, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0059] The thickener selected in this application is highly purified modified calcium-based bentonite, which makes the components of the dry powder coating evenly distributed and non-stratified when added with water. Bentonite manufacturers (such as Xuanhua Yanbei Mining Co., Ltd.) remove impurities such as iron and magnesium from the raw calcium-based bentonite through a flotation process to obtain highly purified calcium-based bentonite, which not only improves the whiteness of the product, but also prepares for subsequent modification. Highly purified calcium-based bentonite and soda ash are evenly mixed and stirred in a mixer at a weight ratio of 9:1 to form highly purified modified calcium-based bentonite. Highly purified modified calcium-based bentonite has a larger effective pore volume, and therefore has a stronger adsorption capacity and is non-toxic. At the same time, because it contains calcium ions, it can increase the strength of the coating.

[0060] A certain amount of powdered hydroxypropyl methylcellulose (Hercules GL450) can be added to the present invention. The viscosity of the powdered hydroxypropyl methylcellulose is 30,000-200,000 centipoise.

[0061] The cellulose viscosity test method is as follows: add 98 parts of pure water to the container, add powdered hydroxypropyl methylcellulose in a trickle under low-speed stirring (300-500 rpm), stir for 30 minutes to form a uniform transparent solution, and then measure it with a Brookfield viscometer. # -64 # Four specifications of rotors, choose 64 # The Brookfield viscosity of cellulose aqueous solution was tested by a spindle.

[0062] This application can add a certain amount of powdered potassium polyphosphate (Mingling Chemical KC, Germany) with a particle size of 400 mesh or more.

[0063] This application can use powdered polyoxyethylene ether material (R66 from BASF, Germany), which does not contain APEO substances and other limited substances specified in GB18582, such as formaldehyde, lead, cadmium, chromium, mercury and other soluble heavy metals).

[0064] A certain amount of powdered organosiloxane (SP100 from Dow Chemical) with a particle size of 300 mesh or more can be added to the present application.

[0065] A certain amount of heavy calcium powder (CC250 from Guangfu Building Materials Company) can be added to this application.

[0066] This application can include a certain proportion of Chinese herbal medicine powder. This powder is a mixture of multiple Chinese herbs mixed in a certain proportion and ground to an appropriate mesh size. The Chinese herbs in this application continuously emit an aromatic scent through the pores of the coating, stimulating the human respiratory mucosa to produce secretory immunoglobulins, which have a strong killing effect on viruses and bacteria, thereby effectively preventing infectious diseases.

[0067] This application can add a certain amount of rutile titanium dioxide (product of Pangang Vanadium Titanium Group Co., Ltd.) with a particle size of 325 mesh or above.

[0068] This application can add a certain amount of quartz sand of different mesh sizes (Guangfu Building Materials Co., Ltd.).

[0069] This application uses gypsum powder (natural gypsum from Hebei Anyi Gypsum Building Materials Co., Ltd. or gypsum waste residue from nearby power plants, phosphoric acid plants, and other industrial byproducts) as the primary powder filler. Dry powder coatings containing gypsum exhibit high strength and excellent water resistance. Gypsum powder also has an antiviral and epidemic prevention effect. Gypsum powder can be industrial gypsum waste residue or natural gypsum ground to an appropriate mesh size.

[0070] This application can add a certain amount of adhesive (VAE latex powder from Wacker, Germany or PVA rubber powder from Shanxi Sanwei). The adhesive can be powdered rubber powder, which can be VAE latex powder or PVA rubber powder or both.

[0071] A certain amount of protein-based gypsum retarder (DH25 from Wacker, Germany) can be added to this application.

[0072] This application can selectively add a certain amount of organic pigments and inorganic pigments for water-based coatings (pigments from Bayer, Germany or Shanghai Yipin Company), wherein the organic pigments are phthalocyanine blue, phthalocyanine green, bright red, medium yellow, and carbon black, and the inorganic pigments are iron oxide red, iron oxide yellow, and iron oxide black.

[0073] The present application is further described in detail below in conjunction with specific implementation methods:

[0074] Example 1:

[0075] Components of Chinese herbal medicine powder:

[0076] Honeysuckle 15% (the flower part is purchased from the Chinese herbal medicine wholesale market in Linyi, Shandong or Fengqiu, Henan), Forsythia suspensa 15% (the fruit part is purchased from the Chinese herbal medicine wholesale market in Shexian, Handan, Hebei), Chrysanthemum indicum 6% (the flower part is purchased from the Chinese herbal medicine wholesale market in Tongxiang, Zhejiang), Isatis root 6% (the root part is purchased from the Chinese herbal medicine wholesale market in Taihe, Fuyang, Anhui), Dandelion 6% (the whole plant is purchased from the Chinese herbal medicine wholesale market in Jixi, Heilongjiang), Artemisia argyi 10% (the whole plant is purchased from the Chinese herbal medicine wholesale market in Qichun, Hubei), Patchouli 6% (the stem and leaf parts are purchased from the Chinese herbal medicine wholesale market in Qichun, Hubei), Purchased from the Traditional Chinese Medicine Wholesale Market of Zhanjiang City, Guangdong Province), Acorus tatarinowii 15% (the rhizome part was purchased from the Traditional Chinese Medicine Wholesale Market of Pujiang County, Jinhua City, Zhejiang Province), Clove 5% (the bud part was purchased from the Traditional Chinese Medicine Wholesale Market of Changbai County, Baishan City, Jilin Province), Cassia twig 5% (the branch part was purchased from the Traditional Chinese Medicine Wholesale Market of Yulin City, Guangxi Province), Ligusticum chuanxiong 5% (the rhizome part was purchased from the Traditional Chinese Medicine Wholesale Market of Dujiangyan City, Sichuan Province), Cymbidium orientale 5% (the whole plant was purchased from the Traditional Chinese Medicine Wholesale Market of Siyang County, Suqian City, Jiangsu Province), and borneol 1% (purchased from Jiangxi Cedar Natural Medicinal Oil Co., Ltd.

[0077] Preparation method of Chinese herbal medicine powder (see Figure 1):

[0078] (a) Cut the long components of the dried Chinese herbal medicine into 2-5 cm pieces in advance using a cutting machine to facilitate subsequent powdering;

[0079] (b) The chopped Chinese herbal medicine is conveyed to a micronizer via a belt conveyor or a screw conveyor and then crushed and mixed into a size of 100-400 mesh in about 15-20 minutes;

[0080] (c) The crushed Chinese herbal medicine powder enters the cyclone separation device, and the dust removal device above is recycled. The product goes to the Chinese herbal medicine powder packaging process below, and the packaged Chinese herbal medicine is ready for use.

[0081] Example 2 (see Figure 2):

[0082] Preparation method of antiviral Chinese herbal medicine dry powder art paint:

[0083] (1) Store the powder components in their respective storage bins in advance;

[0084] (2) During production, bulk gypsum powder, heavy calcium powder, titanium dioxide and other powders are conveyed to the mixer in the paint stirring state through a screw conveyor according to the measurement in the formula;

[0085] (3) Additives such as thickener, cellulose, dispersant, wetting agent, defoamer, 1-2% of the mixed Chinese herbal medicine powder, adhesive, retarder, etc. in a small proportion are transported to the mixer and continue stirring;

[0086] (4) transporting the heavy quartz sand into the mixer;

[0087] (5) After all the materials are added, continue stirring for 3-5 minutes and then stop. After passing the test, package.

[0088] Example 3:

[0089] The antiviral Chinese herbal medicine dry powder art paint provided by the present application comprises the following components by weight percentage:

[0090] Thickener 0.5%, cellulose 0.1%, dispersant 0.1%, wetting agent 0.1%, defoaming agent 0.05%, titanium dioxide 0.5%, Chinese herbal medicine powder 1%, heavy calcium powder 20%, gypsum powder 20%, quartz sand 57.65%, adhesive 0.5%, retarder 0.05%.

[0091] Example 4:

[0092] The antiviral Chinese herbal medicine dry powder art paint provided by the present application comprises the following components by weight percentage:

[0093] Thickener 0.3%, cellulose 0.2%, dispersant 0.2%, wetting agent 0.2%, defoaming agent 0.12%, titanium dioxide 2.5%, Chinese herbal medicine powder 1.5%, heavy calcium powder 15%, gypsum powder 28%, quartz sand 49.78%, adhesive 2.0%, retarder 0.2%.

[0094] Example 5:

[0095] The antiviral Chinese herbal medicine dry powder art paint provided by the present application comprises the following components by weight percentage:

[0096] Thickener 0.1%, cellulose 0.3%, dispersant 0.3%, wetting agent 0.3%, defoaming agent 0.2%, titanium dioxide 5%, Chinese herbal medicine powder 2%, heavy calcium powder 10%, gypsum powder 35%, quartz sand 43.5%, adhesive 3.0%, retarder 0.3%.

[0097] The product performance indicators of Examples 3-5 above meet the JC / T517-2004 requirements for plaster base plaster, as shown in Table 1.

[0098] Table 1

[0099]

[0100] The products of Examples 3-5 above were subjected to the following but not limited to the following environmental protection index tests, and the results met the requirements specified in GB18582-2020, as shown in Table 2.

[0101] Table 2

[0102]

[0103] The product of Example 3 was tested for the following, but not limited to, antiviral data indicators in accordance with ISO 21702:2019, using three, but not limited to, experimental viruses and hosts, as shown in Tables 3, 4, and 5. The amount of herbal powder and gypsum added in Examples 4 and 5 is higher than that in Example 3, which theoretically results in a better antiviral effect.

[0104] Table 3

[0105]

[0106] Table 4

[0107]

[0108] Table 5

[0109]

[0110] The present application discloses a Chinese herbal dry powder art paint with antiviral and epidemic prevention properties and a preparation method thereof. When using this product, just add water in proportion and stir evenly before use. It can be used by various construction methods such as spraying, roller coating, and wiping to produce coating effects with different artistic styles. At the same time, the putty and interior wall latex paint processes can be omitted, thereby reducing the overall cost. In addition, the product has excellent antiviral and epidemic prevention properties by adding specific compound Chinese herbs and gypsum powder, which is particularly suitable for promotion and application under the current global COVID-19 pandemic. The above is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An antiviral dry powder art paint, wherein: The antiviral dry powder art paint comprises 1-5% Chinese herbal medicine powder; and The Chinese herbal medicine powder includes: honeysuckle, forsythia, wild chrysanthemum, isatis root, dandelion, wormwood, patchouli, calamus, clove, cassia twig, ligusticum chuanxiong, perilla, and borneol.

2. The antiviral dry powder art paint according to claim 1, wherein: The Chinese herbal medicine powder comprises: honeysuckle 13-17%, forsythia suspensa 13-17%, wild chrysanthemum 4-8%, isatis root 4-8%, dandelion 4-8%, wormwood 8-12%, patchouli 4-8%, calamus 13-17%, clove 3-7%, cassia twig 3-7%, chuanxiong 3-7%, perilla frutescens 3-7%, borneol 0.1-3%; Preferably, honeysuckle 15%, forsythia suspensa 15%, wild chrysanthemum 6%, isatis root 6%, dandelion 6%, wormwood 10%, patchouli 6%, calamus 15%, clove 5%, cassia twig 5%, ligusticum chuanxiong 5%, eupatorium 5%, and borneol 1%.

3. The antiviral dry powder art paint according to any one of claims 1 to 2, wherein: The antiviral dry powder art paint includes the following components by weight percentage: 1-5% Chinese herbal medicine powder, 0.1-0.5% thickener, 0.1-0.3% cellulose, 0.1-0.3% dispersant, 0.1-0.3% wetting agent, 0.05-0.2% defoamer, 0.5-5% titanium dioxide, 10-20% heavy calcium powder, 20-35% gypsum powder, 43.5-57.65% quartz sand, 0.5-3% adhesive, and 0.05-0.3% retarder.

4. The antiviral dry powder art paint according to claim 3, wherein: The thickener is calcium-based bentonite; The cellulose is hydroxypropyl methylcellulose; The dispersant is potassium polyphosphate; The wetting agent is a polyoxyethylene ether material, which does not contain APEO substances and other limited substances specified in GB18582; The defoaming agent is organosiloxane; The titanium dioxide is rutile type with a particle size of 325 mesh or more; The particle size of the heavy calcium powder is 250-325 mesh; The gypsum powder is industrial gypsum waste or natural gypsum crushed to 250-400 mesh; The quartz sand is a white raw material obtained by crushing natural ore with a mesh size of 20-200; The adhesive is VAE latex powder or PVA latex powder or both; Alternatively, the retarder is a protein retarder.

5. The antiviral dry powder art paint according to claim 4, wherein: The calcium-based bentonite has a diameter of 0.4-0.6 cm 3 / g effective pore volume.

6. The antiviral dry powder art paint according to any one of claims 1 to 2, wherein: The Chinese herbal medicine powder is a crushed mixture.

7. The antiviral dry powder art paint according to any one of claims 1 to 2, wherein: The antiviral dry powder art paint also includes organic pigments and inorganic pigments specially used for water-based paints, wherein the organic pigments are phthalocyanine blue, phthalocyanine green, bright red, medium yellow, and carbon black, and the inorganic pigments are iron oxide red, iron oxide yellow, and iron oxide black.

8. The method for preparing the antiviral dry powder art paint according to any one of claims 1 to 7, the method comprising the following steps: (1) crushing the Chinese herbal medicine according to a certain proportion to obtain Chinese herbal medicine powder for later use; (2) storing thickener, cellulose, dispersant, wetting agent, defoamer, titanium dioxide, Chinese herbal medicine powder, heavy calcium powder, gypsum powder, quartz sand, adhesive, and retarder in respective storage silos; (3) conveying the gypsum powder, the heavy calcium powder, and the titanium dioxide into a dry powder mixer; (4) conveying the thickener, the cellulose, the dispersant, the wetting agent, the defoaming agent, the Chinese herbal medicine powder, the adhesive, and the retarder into the dry powder mixer and continuing to stir; (5) transporting quartz sand into the dry powder mixer; (6) Then continue stirring for 3-5 minutes and then stop the machine. After passing the test, package it.

9. The preparation method according to claim 8, wherein: Step (3) conveying by a screw conveyor; Alternatively, the dry powder mixer in step (3) is in a stirring state.

10. The preparation method according to claim 8, wherein: The Chinese herbal medicine powder is obtained by the following steps: (a) Cutting the long components of dried Chinese herbal medicines including 15% honeysuckle, 15% forsythia, 6% wild chrysanthemum, 6% isatis root, 6% dandelion, 10% wormwood, 6% patchouli, 15% calamus, 5% clove, 5% cassia twig, 5% ligusticum, 5% eupatorium and 1% borneol into 2-5 cm segments; (b) conveying the Chinese herbal medicine of step (a) into a micronizer for crushing to obtain Chinese herbal medicine powder; (c) conveying the Chinese herbal medicine powder to a cyclone separation device, recycling the dust in the Chinese herbal medicine powder through a dust removal device, conveying the Chinese herbal medicine powder to a Chinese herbal medicine powder packaging process for packaging and standby; optionally The cutting in step (a) is carried out in a cutting machine; The conveying in step (b) is carried out by a belt conveyor or a screw conveyor; The pulverization in step (b) is carried out for about 15-20 minutes to obtain Chinese herbal medicine powder with a size of 100-400 mesh.

11. Use of the antiviral dry powder art paint according to any one of claims 1 to 7 in building decoration.

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