A bentonite composition with sunscreen and repair efficacy, and a preparation method and application thereof

Abstract

The application belongs to the technical field of cosmetic raw materials, and discloses a bentonite composition with sunscreen and repair effects, and a preparation method and application thereof. The preparation method of the bentonite composition comprises the following steps: adding bentonite into water, uniformly dispersing, and obtaining a bentonite dispersion liquid; adding a tremella solution into the bentonite dispersion liquid, heating and stirring into a viscous liquid, and obtaining a mixed dispersion liquid; adding ethyl bisimino methyl guaiacol manganese chloride into a polyol, uniformly mixing, obtaining an ethyl bisimino methyl guaiacol manganese chloride solution, adding the ethyl bisimino methyl guaiacol manganese chloride solution into the mixed dispersion liquid, uniformly stirring, and obtaining the bentonite composition with the sunscreen and repair effects. The bentonite composition prepared by the application has good sunscreen and repair effects due to the synergistic effect of the bentonite, the tremella solution and the ethyl bisimino methyl guaiacol manganese chloride in the composition.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of cosmetic raw materials, and particularly relates to a bentonite composition with sunscreen and repair effects as well as a preparation method and application thereof. BACKGROUND

[0002] Sunscreen is an essential step for skin care during the day, especially for people who pursue skin whitening. The common sunscreen products on the market mainly protect against UVA (long-wave ultraviolet) and UVB (medium-wave ultraviolet). After the skin is exposed to ultraviolet rays, the epidermal cells will be damaged, the skin epidermal barrier function will be weakened, and inflammation and burns of the skin will occur. The skin's moisturizing function will be damaged, making the skin dry. Tyrosinase will be activated, accelerating the synthesis of pigments and causing skin sunburn. The elasticity and collagen in the dermis will decrease, the skin will lose support, and wrinkles will occur. In the Cosmetic Safety Technical Specifications (2015), the indicators for detecting the sunscreen capacity of cosmetics are clearly defined: UVA protection factor (PFA value) determination and sun protection factor (SPF value) determination.

[0003] Some businesses, in order to increase the SPF and PA values, often add excessive physical sunscreen agents. Although this can increase the sun protection factor of the product, excessive physical sunscreen agents can deposit on the skin surface as a thick white layer, easily clogging pores and affecting the normal secretion of sebaceous glands and sweat glands. In addition, excessive physical sunscreen agents are prone to fall off on the skin surface, causing the phenomenon of mud rubbing or powder floating. Long-term use of such "pseudo" high-sunscreen cream can inhibit the normal metabolism of skin epidermal cells, increase the transdermal water loss of the skin, and weaken the epidermal barrier function of the skin. SUMMARY

[0004] In order to overcome the shortcomings and deficiencies of the prior art, the primary purpose of the present application is to provide a preparation method of a bentonite composition with sunscreen and repair effects.

[0005] Another purpose of the present application is to provide a bentonite composition with sunscreen and repair effects prepared by the above method.

[0006] Still another purpose of the present application is to provide the application of the above bentonite composition with sunscreen and repair effects.

[0007] The purposes of the present application are achieved by the following solutions:

[0008] A preparation method of a bentonite composition with sunscreen and repair effects, comprising the following steps:

[0009] (1) adding bentonite to water, dispersing uniformly, and obtaining a bentonite dispersion;

[0010] (2) adding the tremella solution into the bentonite dispersion solution, heating and stirring until a viscous liquid is obtained, to obtain a mixed dispersion solution;

[0011] (3) adding the ethyl bis-imino-methyl guaiacol manganese chloride into the polyol, mixing uniformly, to obtain an ethyl bis-imino-methyl guaiacol manganese chloride solution;

[0012] (4) adding the ethyl bis-imino-methyl guaiacol manganese chloride solution into the mixed dispersion solution of step (2), stirring uniformly, to obtain a bentonite composition with sunscreen and repair effects.

[0013] The physical sunscreen agent is usually a metal oxide, and main inorganic sunscreen agents include zinc oxide, titanium dioxide, zirconium oxide, silicon dioxide and diiron trioxide, etc. Among them, silicon dioxide, commonly known as "white carbon black", is prepared based on high temperature, acidification, filtration and washing of bentonite, and it has a certain waterproof capacity in sunscreen products. However, after the bentonite is refined and extracted, the silicon dioxide loses the strong water absorption and swelling capacity of the original bentonite, which may cause clogged pores, skin problems such as kneading mud or floating powder while reducing the sunscreen effect. The natural bentonite has the advantages of strong water absorption, adsorption, water bonding and non-toxicity, etc., and can protect the skin from being too dry and reduce the floating powder phenomenon during sunscreen.

[0014] Tremella is a fungus for both food and medicine, and its main component is tremella polysaccharide, which has excellent moisturizing performance and can form a layer of soft film on the epidermis to maintain the water content of the skin.

[0015] The antioxidant enzyme small molecule ethyl bis-imino-methyl guaiacol manganese chloride (EUK 134) is a synthetic superoxide dismutase (SOD) / catalase mimetic with high antioxidant activity, and has catalase and cell protection activity, SOD activity. The molecular weight of EUK 134 is 416.74, which belongs to a small molecule compound and can directly enter the skin to play a role.

[0016] The natural bentonite, tremella solution and antioxidant enzyme small molecule ethyl bis-imino-methyl guaiacol manganese chloride are combined in the present application, and the prepared bentonite composition has good sunscreen and repair effects. Ultraviolet rays have a risk of damaging the skin, and the prepared bentonite composition can block ultraviolet rays while increasing the antioxidant function, so as to achieve the purpose of protecting the skin in all directions. If any component of the bentonite, the tremella solution or the ethyl bis-imino-methyl guaiacol manganese chloride is missing, or the components are replaced, the sunscreen and repair effects of the prepared bentonite composition are poor.

[0017] In some embodiments, the particle size of the bentonite in step (1) is 2-8 μm; preferably 3 μm.

[0018] In some embodiments, the bentonite is present in the bentonite composition having sun protection and repair efficacy in an amount of 6-15% by mass; preferably 10% by mass.

[0019] In some embodiments, the water is present in the bentonite composition having sun protection and repair efficacy in an amount of 20-60% by mass; preferably 45% by mass.

[0020] In some embodiments, the uniform dispersion operation is a shearing homogenization treatment, the shearing homogenization treatment is performed at a speed of 5000-8000 rpm for 20-60 min; preferably, the shearing homogenization treatment is performed at a speed of 7000 rpm for 40 min.

[0021] In some embodiments, the tremella solution is at least one of a tremella extract, a tremella fermentation broth, and a tremella polysaccharide solution; the tremella solution is present in the bentonite composition having sun protection and repair efficacy in an amount of 8-16% by mass; preferably, the tremella solution is a tremella fermentation broth; the tremella fermentation broth is present in the bentonite composition having sun protection and repair efficacy in an amount of 12% by mass.

[0022] In some embodiments, the method for preparing the tremella extract comprises mixing dry tremella powder with water, extracting, and filtering to obtain the tremella extract.

[0023] Further, the mass ratio of the dry tremella powder to water is 1:5-15, preferably 1:10.

[0024] Further, the extraction is performed at a temperature of 50-90°C for 1-6 h; preferably, the extraction is performed at a temperature of 70°C for 3 h.

[0025] In some embodiments, the method for preparing the tremella fermentation broth comprises adding bacillus seed liquid to a tremella fermentation medium, culturing, and filtering to obtain the tremella fermentation broth.

[0026] Further, the bacillus seed liquid has a bacterial concentration of 10 7 -10 9 cfu / mL; preferably 10 8 cfu / mL.

[0027] Further, the tremella fermentation medium comprises 0.5-2% dry tremella powder, 1-3% glucose, 0.5-2% ammonium chloride, 0.5-2% soybean peptone, and the balance water, wherein the percentages are mass percentages; preferably, the tremella fermentation medium comprises 1% dry tremella powder, 2% glucose, 1% ammonium chloride, 1% soybean peptone, and 95% water.

[0028] Further, the temperature of the fermentation culture is 28-33℃, and the time of the fermentation culture is 36-60h; preferably, the temperature of the fermentation culture is 30℃, and the time of the fermentation culture is 48h.

[0029] Further, the filtration is diatomite filter filtration or microfiltration membrane filtration.

[0030] In some embodiments, the tremella polysaccharide solution is a 0.5-3% (mass fraction) tremella polysaccharide solution; the molecular weight of the tremella polysaccharide is between 500000-1500000Da.

[0031] In some embodiments, the heating and stirring temperature of step (2) is 50-80℃, the heating and stirring speed is 150-500rpm, and the heating and stirring time is 2-10h; preferably, the heating and stirring temperature is 60℃, the heating and stirring speed is 350rpm, and the heating and stirring time is 6h.

[0032] In some embodiments, the adding speed of the tremella solution of step (2) is 0.5-5mL / min; preferably 2mL / min.

[0033] In some embodiments, the mass percentage of the ethyl bisimino methyl guaiacol manganese chloride in the bentonite composition with sunscreen and repair efficacy of step (3) is 0.5-2%, preferably 1%.

[0034] In some embodiments, the polyol of step (3) is at least one of butanediol, butanetriol, pentaerythritol, hexanediol, sorbitol, xylitol; preferably butanediol.

[0035] In some embodiments, the mass percentage of the polyol in the bentonite composition with sunscreen and repair efficacy of step (3) is 20-50%, preferably 32%.

[0036] In some embodiments, the mixing of step (3) is stirring mixing, the stirring speed is 100-300rpm, and the stirring time is 2-10h; preferably, the stirring temperature of step (3) is 25℃, the stirring speed is 200rpm, and the stirring time is 3h.

[0037] In some embodiments, the adding of step (4) is dropwise adding, the dropwise adding speed is 0.5-5mL / min; the stirring speed is 100-300rpm, and the stirring time is 2-10h; preferably, the dropwise adding speed is 2mL / min, the stirring speed is 200rpm, and the stirring time is 6h.

[0038] The bentonite composition with sunscreen and repairing effects prepared by the method.

[0039] The bentonite composition with sunscreen and repairing effects is applied in the cosmetic field, especially in the preparation of the cosmetic with sunscreen effects.

[0040] The amount of the bentonite composition with sunscreen and repairing effects in the cosmetic is 0.1-30% by mass percentage.

[0041] Compared with the prior art, the present application has the following advantages and beneficial effects:

[0042] (1) The bentonite composition with sunscreen and repairing effects is prepared by the specific process, and the synergistic effect of the bentonite, the tremella solution and the ethyl bisimino methyl guaiacol manganese chloride in the composition makes the prepared composition have good sunscreen and repairing effects.

[0043] (2) The tremella solution in the bentonite composition with sunscreen and repairing effects can enhance the sunscreen and repairing effects of the composition, and avoid the agglomeration of the bentonite, thereby improving the stability of the bentonite composition.

[0044] (3) The bentonite composition with sunscreen and repairing effects prepared by the method is applied in the cosmetic, and has good sunscreen effect, and the sunscreen effect of the prepared sunscreen cream is better than that of the commercially available sunscreen cream. In addition, the bentonite composition with sunscreen and repairing effects of the present application is applied in the sunscreen cream, and does not affect the normal metabolism of the skin epidermal cells. After using the sunscreen cream, the transdermal water loss value of the skin is reduced, the water evaporation of the epidermis is reduced, and the epidermal barrier function is enhanced.

[0045] (4) The bentonite composition with sunscreen and repairing effects of the present application has simple preparation process and is suitable for industrial production. DETAILED DESCRIPTION

[0046] The present application will be further described in detail below in combination with examples, but the embodiments of the present application are not limited thereto. The specific conditions are not indicated in the examples, and the conventional conditions or the conditions suggested by the manufacturers are used. The reagents or instruments used are not indicated by the manufacturers, and are all conventional products that can be purchased in the market.

[0047] The bacillus used in the present application is the BNCC221996 bacillus purchased from Beijing Beinaieliang Biotechnology Research Institute.

[0048] The nutrient broth used in the present application is a common nutrient broth in the prior art, and its preparation method is as follows (taking the preparation of 1 L as an example): beef extract 3.0 g, proteose peptone 10.0 g, NaCl 5.0 g, distilled water is added to the culture medium to a volume of 1 L, and then mixed uniformly and sterilized at 121 ℃ for 15 min, and then cooled and stored for use.

[0049] The percentages appearing in the examples, unless otherwise specified, all refer to mass percentages.

[0050] Example 1

[0051] The natural bentonite was ground and treated by a ball mill to obtain bentonite with a particle size of 3 μm. 10 g of the bentonite with a particle size of 3 μm was added to 45 g of deionized water, and then dispersed by a high-shear homogenizing emulsifier at 7000 rpm for 40 min to obtain a bentonite dispersion liquid. 12 g of the tremella fermentation broth was added to the bentonite dispersion liquid at a drop rate of 2 mL / min, and then stirred at 350 rpm in a water bath at 60 ℃ for 6 h to obtain a viscous liquid, and then cooled to 25 ℃ to obtain a mixed dispersion liquid. 1 g of ethyl bis-imino-methyl guaiacol manganese chloride was added to 32 g of butanediol, and then stirred at a speed of 200 rpm at 25 ℃ for 3 h to obtain an ethyl bis-imino-methyl guaiacol manganese chloride alcohol solution. The ethyl bis-imino-methyl guaiacol manganese chloride alcohol solution was added to the mixed dispersion liquid at a drop rate of 2 mL / min, and then stirred at a speed of 200 rpm at 25 ℃ for 6 h after the addition was completed to obtain a bentonite composition with sunscreen and repair effects.

[0052] The preparation method of the tremella fermentation broth is as follows:

[0053] (1) The spore-forming bacteria was inoculated into the nutrient broth by an inoculation loop, and then cultured at 30 ℃ for 24 h to obtain a spore-forming bacteria seed liquid with a bacterial concentration of about 10 8 cfu / mL.

[0054] (2) 1% dry tremella powder, 2% glucose, 1% ammonium chloride, 1% soybean peptone and 95% water were uniformly mixed, and then sterilized at 121 ℃ for 20 min to obtain a tremella culture medium.

[0055] (3) The spore-forming bacteria seed liquid was inoculated into the tremella culture medium, and then cultured at 30 ℃ for 48 h, and then filtered by a diatomite filter to obtain a tremella fermentation broth.

[0056] Example 2

[0057] The 10 g of 3 μm bentonite in Example 1 is replaced by 15 g of 3 μm bentonite, and the mass of deionized water is appropriately adjusted to 40 g to make the total mass 100 g, and the rest remains unchanged, to obtain a bentonite composition with sunscreen and repair efficacy.

[0058] Example 3

[0059] The 10 g of 3 μm bentonite in Example 1 is replaced by 15 g of 3 μm bentonite, and the mass of deionized water is appropriately adjusted to 40 g to make the total mass 100 g, and the rest remains unchanged, to obtain a bentonite composition with sunscreen and repair efficacy.

[0060] Example 4

[0061] The 12 g of tremella fermentation broth in Example 1 is replaced by 12 g of tremella extract, and the rest remains unchanged, to obtain a bentonite composition with sunscreen and repair efficacy.

[0062] The preparation method of the tremella extract is as follows:

[0063] 10 g of dry tremella powder is added to 100 g of deionized water, and extracted at 70°C for 3 h, and the filtrate obtained after filtration is the tremella extract.

[0064] Example 5

[0065] The 12 g of tremella fermentation broth in Example 1 is replaced by 12 g of 1% by mass fraction of tremella polysaccharide solution (the molecular weight of tremella polysaccharide is between 500000-1500000 Da), and the rest remains unchanged, to obtain a bentonite composition with sunscreen and repair efficacy.

[0066] Example 6

[0067] The 12 g of tremella fermentation broth in Example 1 is replaced by 8 g of tremella fermentation broth, and the mass of deionized water is appropriately adjusted to 49 g to make the total mass 100 g, and the rest remains unchanged, to obtain a bentonite composition with sunscreen and repair efficacy.

[0068] Example 7

[0069] The 12 g of tremella fermentation broth in Example 1 is replaced by 16 g of tremella fermentation broth, and the mass of deionized water is appropriately adjusted to 41 g to make the total mass 100 g, and the rest remains unchanged, to obtain a bentonite composition with sunscreen and repair efficacy.

[0070] Example 8

[0071] Example 1 is replaced by 0.5 g of ethyl bis-imino-methyl guaiacol manganese chloride, the mass of deionized water is adjusted to 45.5 g, so that the total mass is 100 g, and the rest remains unchanged, to obtain a bentonite composition with sunscreen and repair efficacy.

[0072] Example 9

[0073] Example 1 is replaced by 2 g of ethyl bis-imino-methyl guaiacol manganese chloride, the mass of deionized water is adjusted to 44 g, so that the total mass is 100 g, and the rest remains unchanged, to obtain a bentonite composition with sunscreen and repair efficacy.

[0074] Example 10

[0075] The natural bentonite is ground by a ball mill to obtain bentonite with a particle size of 5 μm. 8 g of 5 μm bentonite is added to 51.2 g of deionized water, and dispersed by a high-shear homogenizer at 5000 rpm for 60 min to obtain a bentonite dispersion. 10 g of tremella fermentation broth is added to the bentonite dispersion at a drop rate of 0.5 mL / min, and after the addition is completed, the mixture is stirred at 50°C for 2 h to obtain a viscous liquid, and then cooled to 25°C to obtain a mixed dispersion. 0.8 g of ethyl bis-imino-methyl guaiacol manganese chloride is added to 30 g of glycerol, and stirred at 100 rpm and 20°C for 10 h to obtain an ethyl bis-imino-methyl guaiacol manganese chloride alcohol solution. The ethyl bis-imino-methyl guaiacol manganese chloride alcohol solution is added to the mixed dispersion at a drop rate of 5 mL / min, and after the addition is completed, the mixture is stirred at 100 rpm and 20°C for 10 h to obtain a bentonite composition with sunscreen and repair efficacy.

[0076] The preparation method of the tremella fermentation broth of the present example is the same as that of Example 1.

[0077] Example 11

[0078] The natural bentonite was ground by a ball mill to obtain bentonite with a particle size of 8 μm. 10 g of the bentonite with a particle size of 8 μm was added to 39.8 g of deionized water, and dispersed for 20 min at 8000 rpm by a high-shear homogenizer to obtain a bentonite dispersion. 14 g of the tremella fermentation broth was added to the bentonite dispersion at a dropwise adding rate of 5 mL / min, and after the addition was completed, the mixture was stirred at 80°C for 10 h to obtain a mixed dispersion. 1.2 g of ethyl bisimino methyl guaiacol manganese chloride was added to 35 g of sorbitol, and stirred at 300 rpm and 35°C for 2 h to obtain an ethyl bisimino methyl guaiacol manganese chloride alcohol solution. The ethyl bisimino methyl guaiacol manganese chloride alcohol solution was added to the mixed dispersion at a dropwise adding rate of 3 mL / min, and after the addition was completed, the mixture was stirred at 300 rpm and 35°C for 2 h to obtain a bentonite composition with sunscreen and repair effects.

[0079] Comparative Example 1

[0080] 20 g of the tremella fermentation broth was added to 45 g of deionized water at a dropwise adding rate of 2 mL / min, and after the addition was completed, the mixture was stirred at 60°C for 6 h to obtain a mixed solution. 3 g of ethyl bisimino methyl guaiacol manganese chloride was added to 32 g of butanediol, and stirred at 200 rpm and 25°C for 3 h to obtain an ethyl bisimino methyl guaiacol manganese chloride alcohol solution. The ethyl bisimino methyl guaiacol manganese chloride alcohol solution was added to the mixed solution at a dropwise adding rate of 2 mL / min, and after the addition was completed, the mixture was stirred at 200 rpm and 25°C for 6 h to obtain a composition.

[0081] The preparation method of the tremella fermentation broth in Comparative Example 1 was the same as that in Example 1. The difference between Comparative Example 1 and Example 1 was that 8 g of the tremella fermentation broth and 2 g of ethyl bisimino methyl guaiacol manganese chloride were used instead of 10 g of the bentonite in Example 1.

[0082] The total mass of the tremella fermentation broth and the ethyl bisimino methyl guaiacol manganese chloride in Comparative Example 1 was the same as the total mass of the bentonite, the tremella fermentation broth and the ethyl bisimino methyl guaiacol manganese chloride in Example 1.

[0083] Comparative Example 2

[0084] The natural bentonite was ground by a ball mill to obtain bentonite with a particle size of 3 μm. 20 g of the bentonite with a particle size of 3 μm was added to 45 g of deionized water, and dispersed by a high-shear homogenizer at 7000 rpm for 40 min to obtain a bentonite dispersion. 3 g of ethyl bisimino methyl guaiacol manganese chloride was added to 32 g of butanediol, and stirred at 200 rpm and 25 °C for 3 h to obtain an ethyl bisimino methyl guaiacol manganese chloride alcohol solution. The ethyl bisimino methyl guaiacol manganese chloride alcohol solution was added to the bentonite dispersion at a dropwise adding rate of 2 mL / min, and stirred at 200 rpm and 25 °C for 6 h after the addition was completed to obtain a composition.

[0085] The difference between Comparative Example 2 and Example 1 is that 10 g of bentonite and 2 g of ethyl bisimino methyl guaiacol manganese chloride are used in Comparative Example 2 instead of 12 g of the tremella fermentation broth in Example 1.

[0086] The total mass of the bentonite and the ethyl bisimino methyl guaiacol manganese chloride in Comparative Example 2 is the same as the total mass of the bentonite, the tremella fermentation broth and the ethyl bisimino methyl guaiacol manganese chloride in Example 1.

[0087] Comparative Example 3

[0088] The natural bentonite was ground by a ball mill to obtain bentonite with a particle size of 3 μm. 10.5 g of the bentonite was added to 45 g of deionized water, and dispersed by a high-shear homogenizer at 7000 rpm for 40 min to obtain a bentonite dispersion. 12.5 g of the tremella fermentation broth was added to the bentonite dispersion at a dropwise adding rate of 2 mL / min, and stirred at 350 rpm in a water bath at 60 °C for 6 h to obtain a mixed dispersion. 32 g of butanediol was stirred at 200 rpm and 25 °C for 3 h, and the butanediol solution was added to the mixed dispersion at a dropwise adding rate of 2 mL / min. The mixture was stirred at 200 rpm and 25 °C for 6 h after the addition was completed to obtain a composition.

[0089] The preparation method of the tremella fermentation broth is the same as that in Example 1.

[0090] The difference between Comparative Example 3 and Example 1 is that 0.5 g of bentonite and 0.5 g of the tremella fermentation broth are used in Comparative Example 3 instead of 1 g of ethyl bisimino methyl guaiacol manganese chloride in Example 1.

[0091] The total mass of the bentonite and the tremella fermentation broth in Comparative Example 3 is the same as the total mass of the bentonite, the tremella fermentation broth and the ethyl bisimino methyl guaiacol manganese chloride in Example 1.

[0092] Comparative Example 4

[0093] The natural bentonite was ground by a ball mill to obtain bentonite with a particle size of 3 μm. 23 g of the bentonite with a particle size of 3 μm was added to 45 g of deionized water, and dispersed by a high-shear homogenizer at 7000 rpm for 40 min to obtain a bentonite dispersion. 32 g of butanediol was added to the bentonite dispersion at a constant rate of 2 mL / min, and stirred at 200 rpm and 25°C for 6 h to obtain a composition.

[0094] Comparative Example 4 and Example 1 differ in that Comparative Example 4 uses 13 g of bentonite instead of 12 g of tremella fermentation broth and 1 g of ethyl bisimino methyl guaiacol manganese chloride in Example 1.

[0095] The mass of the bentonite in Comparative Example 4 is the same as the total mass of the bentonite, tremella fermentation broth and ethyl bisimino methyl guaiacol manganese chloride in Example 1.

[0096] Comparative Example 5

[0097] 23 g of tremella fermentation broth was added to 45 g of deionized water at a constant rate of 2 mL / min, and stirred at 200 rpm and 25°C for 6 h to obtain a mixture. 32 g of butanediol was added to the mixture at a constant rate of 2 mL / min, and stirred at 200 rpm and 25°C for 6 h to obtain a composition.

[0098] The preparation method of the tremella fermentation broth is the same as that of Example 1.

[0099] Comparative Example 5 and Example 1 differ in that Comparative Example 5 uses 11 g of tremella fermentation broth instead of 10 g of bentonite and 1 g of ethyl bisimino methyl guaiacol manganese chloride in Example 1.

[0100] The mass of the bentonite in Comparative Example 5 is the same as the total mass of the bentonite, tremella fermentation broth and ethyl bisimino methyl guaiacol manganese chloride in Example 1.

[0101] Comparative Example 6

[0102] 15 g of ethyl bisimino methyl guaiacol manganese chloride was added to 32 g of butanediol, and stirred at 200 rpm and 25°C for 3 h to obtain an ethyl bisimino methyl guaiacol manganese chloride alcohol solution. The ethyl bisimino methyl guaiacol manganese chloride alcohol solution was added to 53 g of deionized water at a constant rate of 2 mL / min, and stirred at 200 rpm and 25°C for 6 h to obtain a composition.

[0103] It should be noted that the maximum amount of ethyl bisimino methyl guaiacol manganese chloride added is 15 g. When the amount of ethyl bisimino methyl guaiacol manganese chloride exceeds 15 g, the obtained composition is a turbid liquid and stratification occurs, and the efficacy test experiment cannot be performed.

[0104] In comparison with Example 1, Comparative Example 6 does not add bentonite and tremella fermentation liquor.

[0105] Comparative Example 7

[0106] The natural bentonite is ground and processed by a ball mill to obtain bentonite with a particle size of 3 μm. 10 g of 3 μm bentonite, 45 g of deionized water, 12 g of tremella fermentation liquor, 1 g of ethyl bisimino methyl guaiacol manganese chloride and 32 g of butanediol are mixed uniformly to obtain a composition.

[0107] Comparative Example 7 and Example 1 differ in that Comparative Example 7 does not use the process, but directly mixes bentonite, tremella fermentation liquor, ethyl bisimino methyl guaiacol manganese chloride and butanediol to obtain a composition.

[0108] Comparative Example 8

[0109] In Example 1, 10 g of 3 μm bentonite is replaced by 4 g of 3 μm bentonite, and the mass of deionized water is appropriately adjusted to 51 g to make the total mass 100 g, and the rest remains unchanged to obtain a composition.

[0110] Comparative Example 9

[0111] In Example 1, 10 g of 3 μm bentonite is replaced by 18 g of 3 μm bentonite, and the mass of deionized water is appropriately adjusted to 37 g to make the total mass 100 g, and the rest remains unchanged to obtain a composition.

[0112] Comparative Example 10

[0113] Titanium dioxide is ground and processed by a ball mill to obtain titanium dioxide with a particle size of 3 μm.

[0114] In Example 1, 10 g of 3 μm bentonite is replaced by 10 g of 3 μm titanium dioxide, and the rest remains unchanged to obtain a composition.

[0115] Comparative Example 11 (Aloe extract instead of tremella fermentation liquor)

[0116] In Example 1, 12 g of tremella fermentation liquor is replaced by 12 g of aloe extract, and the rest remains unchanged to obtain a composition.

[0117] Comparative Example 11 and Example 1 differ in that Comparative Example 11 uses aloe extract instead of tremella fermentation liquor to obtain a composition.

[0118] The preparation method of the aloe extract is as follows:

[0119] Fresh aloe barbadensis miller is selected, washed and peeled, and then placed under a 60W ultraviolet lamp for sterilization for 30 minutes. The sterilized aloe pulp is cut into small pieces, and then crushed and squeezed according to a mass ratio of aloe pulp to deionized water of 1:2 to obtain a crude aloe extract. The crude aloe extract is filtered three times, and then decolorized by stirring with 2% activated carbon powder for 8 hours. The activated carbon is removed to obtain the aloe extract.

[0120] Comparative Example 12

[0121] In Example 1, 1 g of ethyl bisimino methyl guaiacol manganese chloride is replaced by 1 g of vitamin C, and the rest remains unchanged to obtain the composition.

[0122] The difference between Comparative Example 12 and Example 1 is that vitamin C is used to replace ethyl bisimino methyl guaiacol manganese chloride to obtain the composition.

[0123] Comparative Example 13 (1,3-propanediol is used instead of butanediol)

[0124] In Example 1, 32 g of butanediol is replaced by 32 g of 1,3-propanediol, and the rest remains unchanged to obtain the composition.

[0125] The difference between Comparative Example 13 and Example 1 is that 1,3-propanediol is used to replace butanediol to obtain the composition.

[0126] Test Example 1 Storage Stability Test

[0127] After the samples of Examples 1-11 and Comparative Examples 1-13 are placed at room temperature for one month, two months and three months, the appearance and odor of the samples are observed, and the storage stability of the samples is tested.

[0128] Table 1 Storage stability test results of samples of Examples 1-11 and Comparative Examples 1-13 (at room temperature)

[0129]

[0130]

[0131] As can be seen from Comparative Examples 1, Comparative Examples 1-6, the addition of bentonite, tremella fermentation broth and ethyl bisimino methyl guaiacol manganese chloride plays a very important role in the stability of the composition. If one of bentonite, tremella fermentation broth or ethyl bisimino methyl guaiacol manganese chloride is missing, or only one active substance is used to prepare the composition, the stability of the product obtained is poor.

[0132] Comparative Example 1 and Comparative Example 7 show that the preparation process has a great influence on the stability of the composition. In Comparative Example 7, the substances in the composition are directly mixed, and after the preparation is completed, the obtained composition is not a clear liquid, but a slightly turbid state. In addition, after the composition of Comparative Example 7 is placed for 1-3 months, the composition not only becomes more turbid, but also has a halitosis, and the composition is very unstable.

[0133] Comparative Examples 1-3 and Comparative Examples 8-9 show that the amount of bentonite added in the composition will affect the stability of the final product. Under the stability test for three months, the product shows a clear appearance at room temperature, and there is no obvious change in odor. When the amount of bentonite added is 4% and 18%, the product shows a turbid appearance under the stability test for three months, and has a halitosis, and the stability is poor. Therefore, the amount of bentonite selected in the present application is 6-15%.

[0134] Comparative Example 1, Comparative Examples 10-13 show that compared with titanium dioxide (Comparative Example 10), aloe extract (Comparative Example 11), vitamin C (Comparative Example 12) and 1,3-propanediol (Comparative Example 13) instead of the corresponding components in the bentonite composition with sunscreen and repair effect, the dispersibility of titanium dioxide is poorer than that of bentonite; the viscosity and film-forming property of aloe extract are different from those of tremella solution; vitamin C has poor stability and easy to decay antioxidant performance, therefore, the above substances are used as active components to prepare the composition, and the stability of the obtained composition is poor. In Example 1 of the present application, bentonite, tremella fermentation broth and ethyl bis-imino-methyl guaiacol manganese chloride interact, and butanediol is used to dissolve ethyl bis-imino-methyl guaiacol manganese chloride to prepare an alcohol solution, and finally a composition with sunscreen and repair effect is prepared, which has the best stability.

[0135] Test Example 2 - Sun Protection Factor (SPF) Value Test:

[0136] The samples for the sun protection factor (SPF) value test are Examples 1-11 and Comparative Examples 1-13, the test method uses human efficacy evaluation test, and the detection index is the sun protection factor (SPF) value. The test subjects are 270 healthy non-sensitive skin men and women aged 18-50, the male to female ratio is 1:1, the detection site has no obvious damage, has not been treated with drugs or cosmetics in the near future, and has not taken hormone drugs in the near future. The experimental personnel are randomly divided into 27 groups, 10 people in each group. The test environment is 20-22℃, 40%-60% RH.

[0137] Test samples: sunscreen creams prepared in Examples 1-11, Comparative Examples 1-13, titanium dioxide sunscreen cream, blank sunscreen cream, commercially available sunscreen cream (Mistine brand Xiaohuangma sunscreen cream). The formulations of the sunscreen creams prepared in Examples 1-11, Comparative Examples 1-13, titanium dioxide sunscreen cream, blank sunscreen cream are shown in Table 2 below:

[0138] Table 2 Formulations of sunscreen creams prepared in Examples 1-11, Comparative Examples 1-13, titanium dioxide sunscreen cream, blank sunscreen cream

[0139]

[0140]

[0141] The preparation methods of the sunscreen creams of Examples 1-11, Comparative Examples 1-13, titanium dioxide sunscreen cream, blank sunscreen cream are as follows:

[0142] (1) Preparing phase A: adding the components in phase A except water into water, heating to 85°C, homogenizing at 8000 rpm until the components are uniformly dispersed to obtain a mixed solution 1, and keeping warm for standby;

[0143] (2) Adding the components in phase B into the mixed solution 1, stirring at 1000 rpm until the components in phase B are completely dissolved, keeping warm for 30 minutes to obtain a mixed solution 2, and keeping warm for standby;

[0144] (3) Preparing phase C: homogenizing the components in phase C at 8000 rpm until the components are uniformly dispersed to obtain a mixed solution 3, and keeping standby;

[0145] (4) Adding the components in phase D into the mixed solution 3, stirring at 1000 rpm until the components in phase D are completely dissolved, then adding the components in phase E, stirring at 1000 rpm until the components in phase E are completely dissolved to obtain a mixed solution 4, heating to 85°C, and keeping warm for standby;

[0146] (5) Adding the mixed solution 4 into the mixed solution 2, homogenizing and emulsifying at 5000 rpm for 10 min, cooling to 70°C, adding the components in phase F, stirring at 1000 rpm, and mixing uniformly to obtain a mixed solution 5;

[0147] (6) Cooling the mixed solution 5 to 60°C, adding the uniformly dissolved phase G materials, stirring uniformly at 1000 rpm, and cooling to room temperature to obtain a sunscreen cream.

[0148] Test steps:

[0149] (1) Test instrument: SIV 6500 SPF IN VIVO multi-wavelength sunscreen protection factor human body measurement system;

[0150] (2) Prediction of MED of the subject. Minimal erythema dose (MED): the minimum dose of UV irradiation (J / m) or the minimum time (sec) required to cause a clearly visible redness of the skin.

[0151] a. The sample coating area is not less than 30 cm 2 .

[0152] b. Sample usage and coating method: the sample is weighed according to the usage of (2.00 ± 0.05) mg / cm 2 , and the sample is uniformly coated in the test area using a latex glove. Wait for 15-30 minutes.

[0153] c. Prediction of MED of the subject: select an irradiation area on the back skin of the subject, and irradiate 6 points with different doses of UV. Observe the results after 24 hours. The minimum irradiation dose or the shortest irradiation time at which the skin appears red is the MED of the normal skin of the subject.

[0154] (3) Test SPF value

[0155] Select two irradiation areas on the back skin of the subject, one is the negative control area, i.e. the unprotected skin area; and the other is the sample area. The two areas are irradiated on the same day, and the selected MED value is the predicted MED value. Record the shortest irradiation time at which the skin appears red as the MED result of the area of the normal skin of the subject.

[0156] (Note: SPF value: sun protection factor, the coefficient after the SPF value refers to a time range within which the skin is not damaged by UV irradiation.)

[0157] (4) SPF value calculation

[0158] Individual SPF value = sample protected skin MED / negative control protected skin MED

[0159] Sample SPF value = total of all individual SPF values / sample amount

[0160] Wherein, the higher the SPF value, the better the sunscreen effect

[0161] Table 3 Test results of sunscreen index SPF values of titanium dioxide sunscreen cream, blank sunscreen cream, and commercially available sunscreen cream (Mistine brand Xiaohuangmao sunscreen cream) in application examples 1-11 and application comparative examples 1-13

[0162]

[0163]

[0164] From the above results, it can be seen that the compositions prepared in Examples 1-11 and Comparative Examples 1-13 all have sunscreen effects. The sunscreen effect of the sunscreen milk of Example 1-11 is better than that of the sunscreen milk of Comparative Example 1-13, and the sunscreen effect of the sunscreen milk of Example 1-11 is better than that of the commercially available sunscreen milk.

[0165] As can be seen from Comparative Example 1 and Comparative Examples 1-6, compared with the composition lacking one of bentonite (Comparative Example 1), tremella fermentation broth (Comparative Example 2) or ethyl bisimino methyl guaiacol manganese chloride (Comparative Example 3), or using one of bentonite (Comparative Example 4), tremella fermentation broth (Comparative Example 5, almost no sunscreen effect) or ethyl bisimino methyl guaiacol manganese chloride (Comparative Example 6) as an active substance alone, the bentonite composition with sunscreen and repair effects prepared in Example 1 of the present application has a higher sunscreen index SPF value by using bentonite, tremella fermentation broth and ethyl bisimino methyl guaiacol manganese chloride to interact.

[0166] As can be seen from Comparative Example 1 and Comparative Example 7, directly mixing the components in the bentonite composition, the bentonite and ethyl bisimino methyl guaiacol manganese chloride cannot be well dispersed, and the tremella fermentation broth cannot well play its film-forming role, resulting in poor sunscreen effect of the final product.

[0167] As can be seen from Comparative Example 1 and Comparative Examples 10-12, compared with zinc oxide (Comparative Example 10), aloe extract (Comparative Example 11) and vitamin C (Comparative Example 12) instead of the corresponding components in the bentonite composition, the sunscreen effect of the prepared composition is poor, indicating that the sunscreen effect of the composition with sunscreen and repair effects prepared in Example 1 of the present application is better by using bentonite, tremella fermentation broth and ethyl bisimino methyl guaiacol manganese chloride to interact.

[0168] As can be seen from Comparative Examples 1-3 and Comparative Examples 8-9, in the composition, the addition amount of bentonite is different, and the sunscreen performance of the composition with sunscreen and repair effects prepared is different. With the increase of the addition amount of bentonite, the sunscreen index SPF value of the product first increases and then decreases. When the addition amount of bentonite is 10%, the sunscreen index SPF value of the product is the highest. When the addition amount of bentonite is 4% or 18%, the sunscreen index SPF value is not as good as that when the addition amount is 6-15%. Therefore, the addition amount of bentonite selected in the present application is 6-15%, and the addition amount of 10% (Example 1) is preferred.

[0169] As can be seen from Comparative Example 1, Example 4 and Example 5, the types of tremella solution in the bentonite composition with sunscreen and repair effects are different, and the sunscreen performances of the finally prepared compositions with sunscreen and repair effects are different. In Example 1, Example 4 and Example 5, the tremella solution in the bentonite composition with sunscreen and repair effects is respectively tremella fermentation liquor, tremella extract and tremella polysaccharide powder solution in water, and the results show that the sunscreen index SPF value of the product of Example 1 is the highest. Therefore, in the present application, the tremella solution is selected as tremella fermentation liquor, and the sunscreen performance of the finally prepared composition with sunscreen and repair effects is the best (Example 1).

[0170] As can be seen from Comparative Example 1, Example 6 and Example 7, the addition amounts of tremella solution in the bentonite composition with sunscreen and repair effects are different, and the sunscreen performances of the finally prepared compositions with sunscreen and repair effects are different. With the increase of the addition amount of tremella fermentation liquor, the sunscreen index SPF value of the product first increases and then decreases. When the addition amount of tremella fermentation liquor is 12%, the sunscreen index SPF value of the product is the highest.

[0171] As can be seen from Comparative Example 1, Example 8 and Example 9, in the bentonite composition with sunscreen and repair effects, the addition amount of ethyl bisimino methyl guaiacol manganese chloride will affect the sunscreen performance of the finally prepared product. With the increase of the addition amount of ethyl bisimino methyl guaiacol manganese chloride, the sunscreen index SPF value of the product first increases and then decreases. When the addition amount of ethyl bisimino methyl guaiacol manganese chloride is 1%, the sunscreen index SPF value of the product is the highest.

[0172] Test Example 3 - Repair Test

[0173] The sample for this repair test: same as Test Example 2

[0174] The test method is human efficacy evaluation experiment, and the detection index is transdermal water loss value. The test objects are 270 healthy men or women aged 18-45 years old, with a male to female ratio of 1:1, without obvious damage, recent drug or cosmetic treatment, and recent hormone drug use. The inclusion criteria is that the facial transdermal water loss value is not less than 15 g / (hm 2 ), and the qualified subjects are randomly divided into 27 groups, 10 people in each group. The test environment is 20-22℃, 40%-60% RH.

[0175] Test steps:

[0176] (1) 2 days before the test, the subjects should not use any product (including make-up or external medicine) on their faces. Before the test, the subjects should not apply any product on the test area of their faces. The subjects should clean their faces with the unified cleansing milk and dry their faces with dry paper. The subjects should sit in the test environment for 30 min.

[0177] (2) Measure the TEWL value of the left and right sides of the subjects' faces and record the data.

[0178] (3) The subjects should take the product and use the sample continuously for 4 weeks according to the requirements. The method is as follows: after the skin care procedure, take a sample with the size of a coin and apply it evenly on the whole face. Use it once a day for 4 weeks.

[0179] (4) 4 weeks after the use of the sample, the subjects should return for a visit. Measure the TEWL value of the left and right sides of the subjects' faces and record the data.

[0180] (5) Result analysis: the data is recorded in the form of (the average value of the left and right sides of the face); compare the change of the TEWL value before and after the use of the sample; compare the change of the TEWL value of the sample and the blank sunscreen cream. The smaller the TEWL value, the better the skin repair effect.

[0181] Difference = the average value after 4 weeks of use - the average value before use

[0182] Change rate = (the average value after 4 weeks of use - the average value before use) / the average value before use * 100%

[0183] Table 4 Test results of the repair of the samples of application examples 1-11 and application comparative examples 1-13 and the blank sunscreen cream

[0184]

[0185] From comparative examples 1-3 and 8-9, it can be seen that the addition amount of bentonite in the composition is different, and the compositions with sunscreen and repair effects prepared finally are different in repair performance. With the increase of the addition amount of bentonite, the repair ability of the bentonite composition with sunscreen and repair effects is improved first and then reduced. When the addition amount of bentonite is 10%, the repair effect of the bentonite composition with sunscreen and repair effects is the best. When the addition amount of bentonite is 4% or 18%, the repair effect is not as good as that when the addition amount is 6-15%. Therefore, the addition amount of bentonite selected in the application is 6-15%, and the addition amount is preferably 10% (example 1).

[0186] As shown in Comparative Example 1, Example 4 and Example 5, the types of the tremella solution in the bentonite composition with sunscreen and repair effects are different, and the repair performance of the finally prepared composition with sunscreen and repair effects is different. In Example 1, Example 4 and Example 5, the tremella solution in the composition is respectively tremella fermentation liquor, tremella extract and solution of tremella polysaccharide powder dissolved in water, and the results show that the repair effect of the bentonite composition with sunscreen and repair effects in Example 1 is the best. Therefore, in the present application, the tremella solution is selected as the tremella fermentation liquor, and the repair performance of the finally prepared composition with sunscreen and repair effects is the best (Example 1).

[0187] As shown in Comparative Example 1, Example 6 and Example 7, the addition amount of the tremella solution in the composition is different, and the repair performance of the finally prepared composition with sunscreen and repair effects is different. With the increase of the addition amount of the tremella fermentation liquor, the repair ability of the bentonite composition with sunscreen and repair effects first increases and then decreases. When the addition amount of the tremella fermentation liquor is 12%, the repair effect of the bentonite composition with sunscreen and repair effects is the best.

[0188] As shown in Comparative Example 1, Example 8 and Example 9, in the composition, the addition amount of the ethyl bis-imino-methyl guaiacol manganese chloride will affect the repair performance of the finally prepared bentonite composition with sunscreen and repair effects. With the increase of the addition amount of the ethyl bis-imino-methyl guaiacol manganese chloride, the repair ability of the bentonite composition with sunscreen and repair effects first increases and then decreases. When the addition amount of the ethyl bis-imino-methyl guaiacol manganese chloride is 1%, the repair effect of the bentonite composition with sunscreen and repair effects is the best.

[0189] As shown in Comparative Example 1, Comparative Examples 1-6, compared with the composition lacking one of bentonite (Comparative Example 1), tremella fermentation liquor (Comparative Example 2) or ethyl bis-imino-methyl guaiacol manganese chloride (Comparative Example 3), or using bentonite (Comparative Example 4), tremella fermentation liquor (Comparative Example 5) or ethyl bis-imino-methyl guaiacol manganese chloride (Comparative Example 6, too much ethyl bis-imino-methyl guaiacol manganese chloride, too much cytotoxicity) as the active substance alone, the bentonite, tremella fermentation liquor and ethyl bis-imino-methyl guaiacol manganese chloride are used to interact in Example 1 of the present application, and the repair effect of the finally prepared composition with sunscreen and repair effects is better.

[0190] As shown in Comparative Example 1 and Comparative Example 7, compared with the composition prepared by directly mixing the materials without the process, the repair effect of the composition prepared by directly mixing the materials without the process is poor.

[0191] It can be known from Comparative Example 1, Comparative Example 10, Comparative Example 11, Comparative Example 12 and Comparative Example 13. Compared with zinc oxide (Comparative Example 10), aloe extract (Comparative Example 11), vitamin C (Comparative Example 12) and 1,3-propanediol (Comparative Example 13), the bentonite, tremella fermentation broth and ethyl bisimino methyl guaiacol manganese chloride are interacted in Example 1 of the application, ethyl bisimino methyl guaiacol manganese chloride is dissolved in butanediol to prepare an alcohol solution, and the finally prepared composition with sunscreen and repair effects has better repair effect.

[0192] It can be known from Comparative Example 1 and blank sunscreen emulsion base. Compared with deionized water, the bentonite, tremella fermentation broth and ethyl bisimino methyl guaiacol manganese chloride are interacted in Example 1 of the application, and the finally prepared composition with sunscreen and repair effects has better repair effect.

[0193] The above examples are preferred embodiments of the present application, but the embodiments of the present application are not limited by the above examples, and any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present application are equivalent replacement methods and are included in the protection scope of the present application.

Claims

1. A process for the preparation of a bentonite composition having a sunscreen and repair efficacy, characterized in that The preparation method of the bentonite composition with sunscreen and repair effects comprises the following steps: (1) adding bentonite into water and uniformly dispersing to obtain a bentonite dispersion liquid; (2) adding a tremella solution into the bentonite dispersion liquid, heating and stirring to obtain a viscous liquid, and obtaining a mixed dispersion liquid; (3) adding ethyl bis-imino-methyl guaiacol manganese chloride into a polyhydric alcohol and uniformly mixing to obtain an ethyl bis-imino-methyl guaiacol manganese chloride solution; (4) adding the ethyl bis-imino-methyl guaiacol manganese chloride solution into the mixed dispersion liquid of step (2) and uniformly stirring to obtain the bentonite composition with sunscreen and repair effects. The mass percentage of the bentonite in the bentonite composition with sunscreen and repair effects is 6-15% in step (1); The mass percentage of the tremella solution in the bentonite composition with sunscreen and repair effects is 8-16% in step (2); The mass percentage of the ethyl bis-imino-methyl guaiacol manganese chloride in the bentonite composition with sunscreen and repair effects is 0.5-2% in step (3).

2. The preparation method of the bentonite composition with sunscreen and repair effects according to claim 1, wherein: The mass percentage of the water in the bentonite composition with sunscreen and repair effects is 20-60% in step (1); The mass percentage of the polyhydric alcohol in the bentonite composition with sunscreen and repair effects is 20-50% in step (3).

3. The preparation method of the bentonite composition with sunscreen and repair effects according to claim 1, wherein: The particle size of the bentonite in step (1) is 2-8 μm.

4. The preparation method of the bentonite composition with sunscreen and repair effects according to claim 1, wherein: The tremella solution in step (2) is at least one of a tremella extract, a tremella fermentation liquid and a tremella polysaccharide solution.

5. The preparation method of the bentonite composition with sunscreen and repair effects according to claim 4, wherein: The preparation method of the tremella extract is: mixing dry tremella powder with water, extracting, filtering and obtaining the tremella extract; The preparation method of the tremella fermentation liquid is: adding a bacillus seed liquid into a tremella fermentation medium, culturing, filtering and obtaining the tremella fermentation liquid; The tremella polysaccharide solution is a 0.5-3% tremella polysaccharide solution by mass fraction.

6. The preparation method of the bentonite composition with sunscreen and repair effects according to claim 5, wherein: In the preparation method of the tremella extract, the mass ratio of the dry tremella powder to water is 1:5-15, the extraction temperature is 50-90°C, and the extraction time is 1-6 h. In the preparation method of the tremella fermentation broth, the bacterial concentration of the bacillus seed liquid is 10 7 -10 9 cfu / mL; the tremella fermentation medium comprises 0.5-2% dry tremella powder, 1-3% glucose, 0.5-2% ammonium chloride, 0.5-2% soybean peptone, and the rest water; the fermentation temperature is 28-33℃, and the fermentation time is 36-60h.

7. The preparation method of the bentonite composition with sunscreen and repair effects according to claim 1, wherein: The polyhydric alcohol in step (3) is at least one of butanediol, butanetriol, pentaerythritol, hexanediol, sorbitol and xylitol.

8. A process for the preparation of the bentonite composition having sunscreen and repair efficacy according to claim 1, characterized by: The polyhydric alcohol in step (3) is butanediol. 9.The method for preparing the bentonite composition with sunscreen and repairing efficacy according to claim 1, characterized in that: the operation of the uniform dispersion in step (1) is shearing homogenization treatment, the rotation speed of the shearing homogenization treatment is 5000-8000 rpm, and the time of the shearing homogenization treatment is 20-60 min; the temperature of the heating and stirring in step (2) is 50-80 ℃, the time of the heating and stirring is 2-10 h, and the adding speed of the tremella solution is 0.5-5 mL / min; the operation of the uniform mixing in step (3) is stirring mixing, the stirring temperature is 20-35 ℃, the stirring speed is 100-300 rpm, and the stirring time is 2-10 h; the adding of the ethyl bis-imino-methyl guaiacol manganese chloride solution in step (4) is dropwise adding, the dropwise adding speed is 0.5-5 mL / min, and the stirring time is 2-10 h. 10.A bentonite composition with sunscreen and repairing efficacy prepared by the method according to any one of claims 1-9. 11.The application of the bentonite composition with sunscreen and repairing efficacy according to claim 10 in the field of preparing cosmetics. 12.The application of the bentonite composition with sunscreen and repairing efficacy according to claim 10 in preparing cosmetics with sunscreen efficacy.

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