Composite film-forming agent composition imitating form of plant leaf membrane and application of composite film-forming agent composition

Abstract

The invention provides a composite film-forming agent composition imitating the form of a plant leaf membrane and application of the composite film-forming agent composition. The composite film-forming agent composition comprises glyceryl rosinate, dextrin palmitate, trimethylsiloxy silicate and triacontyl PVP (Polyvinyl Pyrrolidone). Glycerin abietate, dextrin palmitate, trimethylsiloxy silicate and triacontyl PVP in the film-forming agent composition disclosed by the invention have a synergistic effect and can be matched with other cosmetic components to form a uniform and crack-free film on the skin surface, so that the enrichment of other components on the skin surface is reduced to the maximum extent; the water resistance, sebum resistance, friction resistance and pollution resistance of cosmetics can be obviously improved, and meanwhile, the cosmetics have good air permeability and skin feeling.

Description

Technical Field

[0001] The invention belongs to the technical field of cosmetics, and in particular relates to a composite film-forming agent composition imitating the morphology of plant leaf films and an application thereof. Background Art

[0002] Film formers can give products moisturizing, waterproofing, and shaping effects. Currently, facial leave-on cosmetics include skin care and base makeup products. Adding an appropriate amount of film formers to skin care products can form a breathable film after application, increasing the skin's lubrication. Adding film formers to sunscreen, base makeup and other products can form a waterproof protective film on the skin surface. The film formers are light and thin, can resist sweat and water, and can also prevent external bacteria and pollutants from entering the skin. In sunscreen products, film formers can also help increase the SPF value of sunscreen products, reduce the amount of chemical sunscreen added, and thus reduce the heaviness of the product. In addition, adding film formers to eye and lip products can prevent color migration, make the product's color brighter, and have a long-lasting makeup effect without fading, which can effectively improve the convenience of product use.

[0003] Nowadays, the film formers commonly used in cosmetics are mostly single chemical synthesis or chemical / natural composite film former compositions. There are also reports on the use of biomimetic mesoporous silica (spherical virus-like) to enhance the strength and anti-migration performance of the film layer of the film former. Although these film former compositions can effectively achieve the purpose of efficacy, a single film former often requires a large amount of addition to achieve the desired effect and a single chemically synthesized film former has poor biodegradability, which will not only increase the cost of the product but also be environmentally unfriendly; chemical / natural composite film former compositions can synergistically reduce the amount of film formers used, improve film forming efficiency, and can also reduce the sticky skin feel caused by a single film former to a certain extent, but there will be undesirable phenomena such as tightness and drying when used; while the addition of biomimetic mesoporous silica can effectively improve the film forming efficiency of the film former, but the limitations of use are large and there is a certain risk of mud rubbing.

[0004] In summary, it is of great significance to develop a film-forming agent combination that can reduce the usage amount while forming a film layer with good skin compatibility, refreshing skin feel, and a wide range of applications. Summary of the invention

[0005] In view of the shortcomings of the prior art, the object of the present invention is to provide a composite film-forming agent composition imitating the morphology of plant leaf films and its application. To achieve this object of the invention, the present invention adopts the following technical solutions:

[0006] In a first aspect, the present invention provides a composite film-forming agent composition that mimics the morphology of plant leaf films, wherein the composite film-forming agent composition comprises glycerol rosinate, dextrin palmitate, trimethylsiloxysilicate and triacontyl PVP.

[0007] The glyceryl rosin acid ester selected in the composite film-forming agent composition of the present invention is derived from natural pine trees, and not only has a good waterproof effect, but also can increase viscosity, so that other ingredients are more easily attached to the skin, thereby improving the use experience and effect of the product; the selected dextrin isostearate is derived from fats, sugars and fats, has better compatibility with oils and fats, has better adhesion to the skin, and has a fast film-forming speed and good stability; the trimethylsiloxysilicate is derived from chemical synthesis, has excellent film-forming performance and helps to fix color; the selected triacontyl PVP is derived from chemical synthesis and is an oil-soluble film-forming agent with good film-forming and dispersibility. The above components are used in combination to have a synergistic effect, and can be used with other cosmetic components to form a uniform and crack-free film on the skin surface, thereby minimizing the enrichment of other ingredients on the skin surface, which can not only significantly improve the water resistance, sebum resistance, friction resistance and pollution resistance of cosmetics, but also have good air permeability and skin feel.

[0008] The plant leaf imitation film morphology described in the present invention refers to a film formed by dextrin palmitate and trimethylsiloxysilicate, which has excellent adhesion and moderate hardness. It can be combined with other cosmetic components to form a uniform crack-free film on the skin surface, helping sunscreen agents to reduce polymerization and better spread on the skin surface, thereby improving the dispersibility and film-forming properties of the overall formula. At the same time, the addition of glycerol rosinate and triacontyl PVP can form a light and transparent cross-linked mesh film to simulate the oily waxy hydrophobic film on the surface of plant leaves. In particular, glycerol rosinate is derived from pine trees and has good compatibility with polar oils, which minimizes the enrichment of other ingredients on the skin surface, thereby achieving the waterproofness of the plant leaf surface while being breathable. This can not only significantly improve the water resistance, sebum resistance, friction resistance, and pollution resistance of cosmetics, but also have good breathability and skin feel.

[0009] Preferably, the mass ratio of glycerol rosinate, dextrin palmitate, trimethylsiloxysilicate and triacontyl PVP is (1-3):(2-5):(1-4):(1-2).

[0010] Preferably, the composite film-forming agent composition further comprises dextrin isostearate and / or yeast fermentation product.

[0011] Preferably, the composite film-forming agent composition further comprises dextrin isostearate and yeast fermentation product.

[0012] In the present invention, the dextrin palmitate is derived from fat and sugar lipids, has excellent dispersibility, and can increase emulsification stability; the yeast fermentation product is obtained by yeast fermentation, is rich in various biopolysaccharides, and uses special processes and strains to optimize the biopolysaccharide performance on the basis of retaining the biopolysaccharide structure and molecular weight, so that it has film-forming properties, creating a smooth and cohesive texture for the product; the film-forming agent composition can further improve its film-forming effect by adding dextrin isostearate and yeast fermentation product.

[0013] Preferably, the composite film-forming agent composition comprises glycerol rosinate, dextrin palmitate, trimethylsiloxysilicate, triacontyl PVP, dextrin isostearate and yeast fermentation product.

[0014] Preferably, the mass ratio of glycerol rosinate, dextrin palmitate, trimethylsiloxysilicate, triacontyl PVP, dextrin isostearate and yeast fermentation product is (1-3):(2-5):(1-4):(1-2):(0.5-1.5):(0.1-1).

[0015] Wherein "1-3" can be 1.1, 1.3, 1.5, 1.7, 1.9, 2, 2.1, 2.3, 2.5, 2.7 or 2.9, etc.;

[0016] “2-5” can be 2.2, 2.4, 2.6, 2.8, 3, 3.2, 3.4, 3.6, 3.8, 4, 4.2, 4.4, 4.6 or 4.8, etc.;

[0017] “1-4” can be 1.1, 1.3, 1.5, 1.7, 1.9, 2.1, 2.3, 2.5, 2.7, 2.9, 3.1, 3.3, 3.5, 3.7 or 3.9, etc.;

[0018] "1-2" can be 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8 or 1.9, etc.;

[0019] “0.5-1.5” can mean 0.6, 0.7, 0.8, 0.9, 1, 1.1, 1.2, 1.3 or 1.4, etc.;

[0020] “0.1-1” can be 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9, etc.

[0021] Any specific point value within the above numerical range can be selected, and will not be described in detail here.

[0022] In a second aspect, the present invention provides a use of the composite film-forming agent composition imitating the plant leaf film morphology as described in the first aspect in the preparation of cosmetics.

[0023] Preferably, the cosmetic comprises a sunscreen product or a makeup product.

[0024] Preferably, the sunscreen product includes any one of sunscreen lotion, sunscreen liquid, sunscreen cream or sunscreen mask.

[0025] Preferably, the makeup product includes any one of liquid foundation, lipstick, lip gloss or pressed powder.

[0026] Preferably, the mass percentage of the composite film-forming agent composition in the cosmetic is 0.1-10%, for example, it can be 0.3%, 0.5%, 0.8%, 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8% or 9%, etc.

[0027] Any specific point value within the above numerical range can be selected, and will not be described in detail here.

[0028] In a third aspect, the present invention provides an oil-in-water sunscreen lotion, wherein the components of the oil-in-water sunscreen lotion include, by weight, 5-40 parts of a sunscreen agent, 1-10 parts of a moisturizer, 1-10 parts of an emulsifier, 0.1-10 parts of the composite film-forming agent composition having a plant leaf film morphology as described in the first aspect, 0.1-10 parts of auxiliary materials, and 20-95 parts of deionized water.

[0029] The amount of the sunscreen agent added to the oil-in-water sunscreen lotion of the present invention can be 6 parts, 8 parts, 10 parts, 12 parts, 14 parts, 16 parts, 18 parts, 20 parts, 22 parts, 24 parts, 26 parts, 28 parts, 30 parts, 32 parts, 34 parts, 36 parts or 38 parts, etc.;

[0030] The amount of the emollient added can be 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts or 9 parts, etc.;

[0031] The amount of the emulsifier added can be 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts or 9 parts, etc.;

[0032] The addition amount of the composite film-forming agent composition can be 0.3 parts, 0.5 parts, 0.8 parts, 1 parts, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts or 9 parts, etc.;

[0033] The amount of the auxiliary material added can be 0.3 parts, 0.5 parts, 0.8 parts, 1 parts, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts or 9 parts, etc.;

[0034] The added amount of the deionized water can be 25 parts, 30 parts, 35 parts, 40 parts, 45 parts, 50 parts, 55 parts, 60 parts, 65 parts, 70 parts, 75 parts, 80 parts, 85 parts or 90 parts, etc.

[0035] The oil-in-water sunscreen lotion of the present invention can increase the SPF value of the product and enhance the sunscreen, water resistance and sweat resistance of the product by adding a composite film-forming agent composition and supplemented with a specific sunscreen agent, and can also adjust the viscosity of the product, improve the skin feel, and reduce the evaporation of water inside the skin, thereby having a certain moisturizing effect.

[0036] Preferably, the sunscreen comprises any one of zinc oxide, titanium dioxide, ethylhexyl methoxycinnamate, octocrylene, isopentyl p-methoxycinnamate, bis-ethylhexyloxyphenol methoxyphenyl triazine, diethylaminohydroxybenzoyl hexyl benzoate, ethylhexyl triazone, ethylhexyl salicylate, homosalate, methylene bis-benzotriazolyl tetramethylbutylphenol, phenylbenzimidazole sulfonic acid, disodium phenyl dibenzimidazole tetrasulfonate, butyl methoxydibenzoylmethane, and drometrizole trisiloxane, or a combination of at least two thereof.

[0037] Preferably, the sunscreen lotion is phenylbenzimidazole sulfonic acid, ethylhexyl salicylate, homosalate, diethylaminohydroxybenzoyl hexyl benzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine and methylene bis-benzotriazolyl tetramethylbutylphenol.

[0038] Preferably, the emollient includes any one of polydimethylsiloxane, cyclopentasiloxane, dibutyl adipate, isododecane, isohexadecane, isononyl isononanoate, octyl polymethylsiloxane, neopentyl glycol dicaprate, diisopropyl sebacate or propylene carbonate, or a combination of at least two thereof.

[0039] Preferably, the emulsifier includes any one of cetearyl glucoside, PEG-10 dimethicone, C12-20 alkyl glucoside, coconut glucoside, PEG-100 stearate, sorbitan sesquioleate or lauryl PEG-10 tris(trimethylsiloxy)silylethyl dimethicone or a combination of at least two thereof.

[0040] Preferably, the excipients include any one or a combination of at least two of glycerol, 1,3-propylene glycol, butylene glycol, preservatives, disodium EDTA, disteardimethylammonium hectorite, tromethamine, sodium hydroxide, xanthan gum, carbomer, hydroxyethyl cellulose, ammonium acryloyldimethyltaurate / VP copolymer or acrylic acid (esters) / C10-30 alkyl acrylate cross-linked polymer.

[0041] Any specific point value within the above numerical range can be selected, and will not be described in detail here.

[0042] In a fourth aspect, the present invention provides a method for preparing the oil-in-water sunscreen lotion as described in the third aspect, the preparation method comprising: mixing and homogenizing a sunscreen, a moisturizer, an emulsifier, the composite film-forming agent composition imitating the plant leaf film morphology as described in the first aspect, auxiliary materials and deionized water to obtain the oil-in-water sunscreen lotion.

[0043] Preferably, the preparation method comprises:

[0044] (1) mixing a composite film-forming agent composition imitating the plant leaf film morphology, auxiliary materials and water to obtain an aqueous phase;

[0045] The emulsifier, part of the sunscreen and the emollient are mixed to obtain an oil phase;

[0046] (2) The water phase and the oil phase are mixed and homogenized, and then the remaining sunscreen is added, and the mixing and homogenization are continued to obtain the oil-in-water sunscreen lotion.

[0047] Preferably, the mixing temperature during the preparation of the aqueous phase in step (1) is 80-85°C, for example, 81°C, 82°C, 83°C, 84°C or 85°C.

[0048] Preferably, the mixing temperature during the preparation of the oil phase in step (1) is 80-85°C, for example, 81°C, 82°C, 83°C, 84°C or 85°C.

[0049] Preferably, the part of the sunscreen in step (1) is phenylbenzimidazole sulfonic acid, ethylhexyl salicylate, homosalate, diethylaminohydroxybenzoyl hexyl benzoate and bis-ethylhexyloxyphenol methoxyphenyl triazine.

[0050] Preferably, the remaining sunscreen in step (2) is methylene bis-benzotriazolyl tetramethylbutylphenol.

[0051] Preferably, the temperature is lowered to 45-60°C before adding the remaining sunscreen in step (2), for example, 46°C, 48°C, 50°C, 52°C, 54°C, 56°C or 58°C.

[0052] Any specific point value within the above numerical range can be selected, and will not be described in detail here.

[0053] Compared with the prior art, the present invention has the following beneficial effects:

[0054] (1) The composite film-forming agent composition of the present invention comprises glyceryl rosinate, dextrin palmitate, trimethylsiloxysilicate and triacontyl PVP, which have a synergistic effect and can be used with other cosmetic components to form a uniform, crack-free film on the skin surface, thereby minimizing the accumulation of other ingredients on the skin surface. This not only significantly improves the water resistance, sebum resistance, friction resistance and pollution resistance of the cosmetics, but also has good air permeability and skin feel.

[0055] (2) The composite film-forming agent composition of the present invention achieves the purpose of enhancing the synergy of sunscreen agents in sun protection through the synergistic effect of different types of film-forming agents and their proportions, thereby reducing the amount of sunscreen added, while improving the sunscreen performance, stability and skin feel of the sunscreen product and reducing the irritation of the sunscreen product.

[0056] (3) The oil-in-water sunscreen lotion of the present invention can not only increase the SPF value of the product and enhance the sunscreen and water and sweat resistance of the product by adding a composite film-forming agent composition and then supplementing it with a specific sunscreen, but also adjust the viscosity of the product and improve the skin feel. At the same time, it can reduce the evaporation of water inside the skin and have a certain moisturizing effect. DETAILED DESCRIPTION

[0057] In order to further explain the technical means and effects adopted by the present invention, the technical solution of the present invention is further described below in conjunction with the preferred embodiments of the present invention, but the present invention is not limited to the scope of the embodiments.

[0058] The following materials and comparative examples are as follows:

[0059]

[0060] The rest of the raw materials can be used as long as they are purchased from regular dealers.

[0061] Example 1

[0062] The present embodiment provides a composite film-forming agent composition that imitates the morphology of plant leaf films, wherein the film-forming agent composition comprises, by weight, 4 parts of glycerol rosinate, 6 parts of dextrin palmitate, 6 parts of trimethylsiloxysilicate, 3 parts of triacontyl PVP, 2 parts of dextrin isostearate and 1 part of yeast fermentation product.

[0063] Example 2

[0064] The present embodiment provides a composite film-forming agent composition that imitates the morphology of plant leaf films, wherein the film-forming agent composition comprises, by weight, 6 parts of glycerol rosinate, 4 parts of dextrin palmitate, 8 parts of trimethylsiloxysilicate, 2 parts of triacontyl PVP, 3 parts of dextrin isostearate and 0.6 parts of yeast fermentation product.

[0065] Example 3

[0066] The present embodiment provides a composite film-forming agent composition that imitates the morphology of plant leaf films, wherein the film-forming agent composition comprises, by weight, 2 parts of glycerol rosinate, 10 parts of dextrin palmitate, 2 parts of trimethylsiloxysilicate, 4 parts of triacontyl PVP, 1 part of dextrin isostearate and 2 parts of yeast fermentation product.

[0067] Example 4

[0068] This embodiment provides a composite film-forming agent composition that imitates the morphology of plant leaf films. The film-forming agent composition comprises 4 parts of glycerol rosinate, 6 parts of dextrin palmitate, 6 parts of trimethylsiloxysilicate, and 3 parts of triacontyl PVP in parts by weight.

[0069] Example 5

[0070] This embodiment provides a composite film-forming agent composition that imitates the morphology of plant leaf films. The film-forming agent composition comprises, by weight, 4 parts of glycerol rosinate, 6 parts of dextrin palmitate, 6 parts of trimethylsiloxysilicate, 3 parts of triacontyl PVP and 3 parts of dextrin isostearate.

[0071] Example 6

[0072] This embodiment provides a composite film-forming agent composition that imitates the morphology of plant leaf films. The film-forming agent composition comprises, by weight, 4 parts of glycerol rosinate, 6 parts of dextrin palmitate, 6 parts of trimethylsiloxysilicate, 3 parts of triacontyl PVP and 3 parts of yeast fermentation product.

[0073] Comparative Example 1

[0074] This comparative example provides a composite film-forming agent composition that simulates the morphology of plant leaf films. The film-forming agent composition differs from Example 1 only in that glycerol rosinate is not included, and the reduced amount thereof is distributed to dextrin palmitate, trimethylsiloxysilicate and triacontyl PVP in proportion to the number of parts, while the other components and the addition amounts remain unchanged.

[0075] Comparative Example 2

[0076] This comparative example provides a composite film-forming agent composition that simulates the morphology of plant leaf films. The film-forming agent composition differs from Example 1 only in that dextrin palmitate is not included, and its reduced amount is distributed to glycerol rosinate, trimethylsiloxysilicate and triacontyl PVP in proportion to the number of parts, while the other components and the addition amounts remain unchanged.

[0077] Comparative Example 3

[0078] This comparative example provides a composite film-forming agent composition that simulates the morphology of plant leaf films. The film-forming agent composition differs from Example 1 only in that it does not include trimethylsiloxysilicate, and its reduced amount is distributed to glycerol rosinate, dextrin palmitate and triacontyl PVP in proportion to the number of parts, while the other components and the addition amounts remain unchanged.

[0079] Comparative Example 4

[0080] This comparative example provides a composite film-forming agent composition that simulates the morphology of plant leaf films. The film-forming agent composition differs from Example 1 only in that it does not include triacontyl PVP, and its reduced amount is distributed to glycerol rosinate, dextrin palmitate and trimethylsiloxysilicate in proportion to the number of parts, while the other components and the addition amounts remain unchanged.

[0081] Application Examples 1-3

[0082] This application example provides three kinds of oil-in-water sunscreen lotions. The formulas of the sunscreen lotions are shown in the following table. The dosage units of each component in the table are all "parts".

[0083]

[0084] Preparation method:

[0085] (1) heating the auxiliary material and the film-forming agent composition in water to 83° C. and mixing to obtain an aqueous phase;

[0086] (2) heating the emulsifier, the emollient, phenylbenzimidazole sulfonic acid, ethylhexyl salicylate, homosalate, diethylaminohydroxybenzoyl hexyl benzoate and bis-ethylhexyloxyphenol methoxyphenyl triazine to 80° C. and mixing to obtain an oil phase;

[0087] (2) The water phase and the oil phase are mixed and homogenized, then the temperature is lowered to 60° C., methylene bis-benzotriazolyl tetramethylbutylphenol is added, and the mixing is continued to be homogenized to obtain the oil-in-water sunscreen lotion.

[0088] Application Examples 4-6

[0089] This application example provides three types of oil-in-water sunscreen lotions. The difference between the sunscreen lotions and application example 1 is that the film-forming agent composition of example 1 is replaced by the film-forming agent composition of examples 4-6 in equal amounts, and the remaining components and addition amounts are consistent with those of application example 1. The preparation method refers to application example 1.

[0090] Application Example 7

[0091] This application example provides an oil-in-water sunscreen lotion, which differs from Application Example 1 only in that the sunscreen agent does not include phenylbenzimidazole sulfonic acid, and the reduced amount thereof is distributed to ethylhexyl salicylate, homosalate, diethylaminohydroxybenzoyl hexyl benzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine and methylene bis-benzotriazolyl tetramethylbutylphenol in proportion to the number of parts. The remaining components and the added amounts are consistent with those in Application Example 1, and the preparation method refers to Application Example 1.

[0092] Application Example 8

[0093] This application example provides an oil-in-water sunscreen lotion, which differs from Application Example 1 only in that ethylhexyl salicylate is not included in the sunscreen agent, and its reduced amount is distributed to phenylbenzimidazole sulfonic acid, homosalate, diethylaminohydroxybenzoyl hexyl benzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine and methylene bis-benzotriazolyl tetramethylbutylphenol in proportion to the number of parts. The remaining components and addition amounts are consistent with those in Application Example 1, and the preparation method refers to Application Example 1.

[0094] Application Example 9

[0095] This application example provides an oil-in-water sunscreen lotion, which differs from Application Example 1 only in that the sunscreen does not include homosalate, and the reduced amount thereof is distributed according to the proportion of parts to phenylbenzimidazole sulfonic acid, ethylhexyl salicylate, diethylaminohydroxybenzoyl hexyl benzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine and methylene bis-benzotriazolyl tetramethylbutylphenol, and the remaining components and addition amounts are consistent with those in Application Example 1. The preparation method refers to Application Example 1.

[0096] Application Example 10

[0097] This application example provides an oil-in-water sunscreen lotion, which differs from Application Example 1 only in that diethylaminohydroxybenzoyl hexyl benzoate is not included in the sunscreen agent, and its reduced amount is distributed to phenylbenzimidazole sulfonic acid, ethylhexyl salicylate, homosalate, bis-ethylhexyloxyphenol methoxyphenyl triazine and methylene bis-benzotriazolyl tetramethylbutylphenol in proportion to the number of parts. The remaining components and added amounts are consistent with those in Application Example 1, and the preparation method refers to Application Example 1.

[0098] Application Example 11

[0099] This application example provides an oil-in-water sunscreen lotion, which differs from Application Example 1 only in that the sunscreen does not include bis-ethylhexyloxyphenol methoxyphenyl triazine, and its reduced amount is distributed to phenylbenzimidazole sulfonic acid, ethylhexyl salicylate, homosalate, diethylaminohydroxybenzoyl hexyl benzoate and methylene bis-benzotriazolyl tetramethylbutylphenol in proportion to the number of parts. The remaining components and added amounts are consistent with those in Application Example 1, and the preparation method refers to Application Example 1.

[0100] Application Example 12

[0101] This application example provides an oil-in-water sunscreen lotion, which differs from Application Example 1 only in that the sunscreen agent does not include methylene bis-benzotriazolyl tetramethylbutylphenol, and its reduced amount is distributed to phenylbenzimidazole sulfonic acid, ethylhexyl salicylate, homosalate, diethylamino hydroxybenzoyl hexyl benzoate and bis-ethylhexyloxyphenol methoxyphenyl triazine in proportion to the number of parts. The remaining components and added amounts are consistent with those in Application Example 1, and the preparation method refers to Application Example 1.

[0102] Comparative Application Examples 1-4

[0103] This comparative application example provides 4 kinds of oil-in-water sunscreen lotions. The difference between the sunscreen lotions and application example 1 is that the film-forming agent composition of example 1 is replaced by the film-forming agent composition of comparative examples 1-4 in equal amounts, and the remaining components and addition amounts are consistent with those of application example 1. The preparation method refers to application example 1.

[0104] Comparative Application Example 5

[0105] This comparative application example provides an oil-in-water sunscreen lotion, which differs from Application Example 1 only in that it does not include a film-forming agent composition, and its reduced amount is supplemented by water. The remaining components and added amounts are consistent with Application Example 1, and the preparation method refers to Application Example 1.

[0106] Test Example 1: Stability Test

[0107] The stability test includes high temperature, low temperature and hot and cold cycle test. The samples provided in Application Examples 1-12 and Comparative Application Examples 1-5 are placed at 48°C and -15°C for 6 months respectively, and the appearance of the products is regularly observed for abnormal phenomena such as turbidity and stratification. After the products are subjected to hot and cold cycle at -18°C / 45°C for 3 times, they are observed for abnormal phenomena such as discoloration, precipitation, turbidity, stratification, etc. The test results are shown in Table 1.

[0108] Table 1

[0109] serial number 48℃ -15℃ -18℃ / 25℃ Application Example 1 normal normal normal Application Example 2 normal normal normal Application Example 3 normal normal normal Application Example 4 Layering Sunscreen precipitation Layering Application Example 5 normal Crystallization becomes coarse normal Application Example 6 Discoloration normal Discoloration Application Example 7 normal normal normal Application Example 8 normal normal normal Application Example 9 normal normal normal Application Example 10 normal normal normal Application Example 11 normal normal normal Application Example 12 normal normal normal Comparative application example 1 Discoloration, odor normal Discoloration, odor Comparative Application Example 2 normal Sunscreen precipitation normal Comparative Application Example 3 normal Sunscreen precipitation normal Comparative Application Example 4 Layering Sunscreen precipitation normal Comparative Application Example 5 Layering, color change Demulsification Demulsification, discoloration

[0110] It can be seen from the data in Table 1 that the sunscreen lotion provided by the present invention has excellent high and low temperature stability, and the lack of any one of glycerol rosinate, dextrin palmitate, trimethylsiloxysilicate and triacontyl PVP in the film-forming agent composition will affect the stability of the sunscreen clothing.

[0111] Test Example 2 Sunscreen Effect Test

[0112] The products of Application Examples 1-12 and Comparative Application Examples 1-5 were subjected to sunscreen effect evaluation experiments. According to the sunscreen index test method (human body method) of sunscreen cosmetics in the "Technical Specifications for Safety of Cosmetics" (2015 edition), the number of testers in each group was 10, and the sample application amount was (2.00±0.05) mg / cm 2 , application area 30cm 2 , test the sun protection effect of the product, using the average sun protection index (SPF value) and the average long-wave ultraviolet protection index (PFA value) of sunscreen cosmetics as evaluation indicators.

[0113] SPF, also known as the sun protection factor, indicates the sun protection effect of sunscreen products. The larger the SPF value, the better the protection against UVB. It is determined based on the minimum erythema dose (MED) of the skin. After using sunscreen products, the minimum erythema dose of the skin will increase, so the SPF of the sunscreen product is:

[0114] SPF value = MED of skin protected by sunscreen cosmetics / MED of skin not protected

[0115] PFA is also called UVA protection index. When UVA in sunlight irradiates the skin, it mainly produces the physiological effect of skin darkening, which is measured by the minimum persistent darkening dose (MPPD). MPPD is the minimum ultraviolet radiation dose or the shortest irradiation time required to produce slight darkening of the skin on the entire irradiated area 2 to 4 hours after irradiation. The PFA of sunscreen products is:

[0116] PFA value = MPPD of skin protected by sunscreen products / MPPD of unprotected skin

[0117] The results of the sunscreen effect test are shown in Table 2 (SPF value before bathing and PFA value before bathing).

[0118] Test Example 3 Waterproof Performance Test

[0119] According to the method for determining the waterproof performance of sunscreen cosmetics in the 2015 edition of the Cosmetics Safety Technical Specification, the waterproof performance of the products of Application Examples 1-12 of the present invention and Comparative Application Examples 1-5 was tested.

[0120] Determination method: The same group of volunteers as in Test Example 2. Apply sunscreen to the test area of ​​the subject, wait for 15-30 minutes, then perform moderate activities in the water for 20 minutes or rotate the water at a moderate level for 20 minutes, get out of the water for 20 minutes, then enter the water for moderate activities for 20 minutes, and then end the water activities. After the skin is dry, the SPF value and PFA value are measured. The test results are shown in Table 2 (SPF value after bathing and PFA value after bathing).

[0121] Table 2

[0122] Sample name SPF value SPF value after bathing PFA value PFA value after bath Application Example 1 62.3 47.3 18.99 15.11 Application Example 2 61.3 45.3 18.10 16.72 Application Example 3 63.1 56.1 22.86 18.48 Application Example 4 50.7 35.7 15.39 10.15 Application Example 5 55.3 37.3 16.83 11.45 Application Example 6 53.9 36.9 15.54 11.04 Application Example 7 53.2 38.2 15.88 10.40 Application Example 8 51.5 35.5 15.20 10.16 Application Example 9 57.6 42.6 15.64 10.57 Application Example 10 55.7 39.7 15.60 10.12 Application Example 11 47.9 31.9 14.85 9.89 Application Example 12 46.7 35.3 16.03 10.32 Comparative application example 1 47.7 27.7 14.07 7.98 Comparative Application Example 2 48.5 27.9 14.68 8.67 Comparative Application Example 3 51.7 33.7 14.02 9.14 Comparative Application Example 4 50.6 31.6 14.13 8.83 Comparative Application Example 5 45.3 20.3 13.48 6.63

[0123] It can be seen from Table 2 that compared with comparative application example 5, the SPF value and PFA value of the oil-in-water sunscreen lotion of application examples 1-3 of the present invention are significantly higher, wherein the SPF value is between 60-65, and the PFA value is between 17-23; and the SPF value before and after bathing only decreases by 19%-24%, while the SPF value after bathing can still reach a relatively high 56.1, and the PFA value can still reach 18.48, indicating that the oil-in-water sunscreen lotion of the present invention has better waterproof performance.

[0124] It can be seen from Application Example 1 that by adding dextrin isostearate and yeast fermentation product to the film-forming agent composition of the present invention, the sunscreen effect of the product can be better improved. When both or any one of them is missing, the SPF value or PFA value of the product will be low, and the comprehensive sunscreen performance will be reduced.

[0125] It can be seen from the comparison between Application Example 1 and Application Examples 7-12 that the sunscreen agents selected in the present invention also have a synergistic effect, and when any one of the six is ​​missing, the SPF value or PFA value of the sunscreen lotion will be reduced;

[0126] Compared with Application Example 1 and Comparative Application Examples 1-4, the SPF value and PFA value of Comparative Application Examples 1-4 are significantly lower than those of Application Example 1, which indicates that glyceryl rosinate, dextrin palmitate, trimethylsiloxysilicate, and triacontyl PVP have a synergistic effect in sun protection effect, which can reduce the effect of chemical sunscreens while improving SPF.

[0127] Test Example 4 Consumer Sensory Effect Evaluation

[0128] 102 female volunteers aged between 30 and 35 were selected as test subjects and randomly divided into 17 groups, with 6 people in each group. Test method: The test subjects used the products of application examples 1-12 and comparative application examples 1-5, once every night, for 15 consecutive days. After use, the test subjects scored the use effect using a 10-point system: 9 points or more means very good, very satisfied; 8-9 points are good; 7-8 points are medium and acceptable; and below 7 points are not good, unacceptable. The score of each group is the average of 6 people, and the results are shown in Table 3.

[0129] Table 3

[0130] sample Sun protection effect Skin feel Application Example 1 8.0 7.8 Application Example 2 8.3 8.0 Application Example 3 9.0 8.2 Application Example 4 6.5 6.5 Application Example 5 7.0 7.0 Application Example 6 6.8 6.7 Application Example 7 6.0 6.2 Application Example 8 6.0 5.8 Application Example 9 5.8 6.0 Application Example 10 5.3 5.8 Application Example 11 5.7 5.5 Application Example 12 5.5 5.5 Comparative application example 1 5.0 5.0 Comparative Application Example 2 5.2 5.2 Comparative Application Example 3 5.2 5.3 Comparative Application Example 4 4.8 5.3 Comparative Application Example 5 4.5 5.0

[0131] According to Table 3, the sunscreen lotion of the present invention has a more excellent sunscreen effect and skin feel, and the selection of the components of the film-forming agent composition has a certain influence on the above effects.

[0132] Test Example 5

[0133] Safety evaluation:

[0134] The specific method is as follows: 40 females aged 18-35 years old with no history of allergies were selected, and each subject tried the product prepared in Application Examples 1-12. After cleaning the back of the subject, the spot tester with the sample was applied to the selected position on the back with a non-irritating tape. After pasting, it was lightly pressed with fingers to make it evenly attached to the skin for 24 hours. The subject kept the patch area dry within 24 hours, and avoided intense exercise, scratching the patch area, long-term sunlight exposure, etc. After 24 hours, the tester was removed and marked, and after 30 minutes, the indentation disappeared and the judgment was made under sufficient light.

[0135] The grading standards for adverse skin reactions are shown in Table 4:

[0136] Table 4

[0137]

[0138] The results are shown in Table 5:

[0139] Table 5

[0140]

[0141] It can be seen from the data in Table 5 that all the subjects had negative reactions, which indicates that the raw materials used in the sunscreen lotion of the present invention have no adverse reactions to the human body and are highly safe.

[0142] The applicant declares that the present invention uses the above-mentioned embodiments to illustrate the composite film-forming agent composition imitating the plant leaf film morphology and its application, but the present invention is not limited to the above-mentioned embodiments, that is, it does not mean that the present invention must rely on the above-mentioned embodiments to be implemented. Those skilled in the art should understand that any improvement of the present invention, equivalent replacement of various raw materials of the product of the present invention, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

[0143] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0144] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

Claims

1. A composite film-forming agent composition imitating the morphology of plant leaf films, characterized in that: The composite film-forming agent composition comprises glycerol rosinate, dextrin palmitate, trimethylsiloxysilicate and triacontyl PVP.

2. The film-forming agent composition according to claim 1, characterized in that The mass ratio of the glycerol rosinate, dextrin palmitate, trimethylsiloxysilicate and triacontyl PVP is (1-3):(2-5):(1-4):(1-2).

3. The film-forming agent composition according to claim 1 or 2, characterized in that: The composite film-forming agent composition also includes dextrin isostearate and / or yeast fermentation product; Preferably, the composite film-forming agent composition comprises glycerol rosinate, dextrin palmitate, trimethylsiloxysilicate, triacontyl PVP, dextrin isostearate and yeast fermentation product.

4. The film-forming agent composition according to claim 3, characterized in that The mass ratio of the glycerol rosinate, dextrin palmitate, trimethylsiloxysilicate, triacontyl PVP, dextrin isostearate and yeast fermentation product is (1-3):(2-5):(1-4):(1-2):(0.5-1.5):(0.1-1).

5. Use of the composite film-forming agent composition imitating the plant leaf film morphology as claimed in any one of claims 1 to 4 in the preparation of cosmetics.

6. The use according to claim 5, characterized in that The cosmetics include sunscreen products or makeup products; Preferably, the sunscreen product includes any one of sunscreen lotion, sunscreen solution, sunscreen cream or sunscreen mask; Preferably, the makeup product includes any one of liquid foundation, lipstick, lip gloss or pressed powder; Preferably, the mass percentage of the composite film-forming agent composition in the cosmetic is 0.1-10%.

7. An oil-in-water sunscreen lotion, characterized in that: The components of the oil-in-water sunscreen lotion include, by weight, 5-40 parts of sunscreen, 1-10 parts of moisturizer, 1-10 parts of emulsifier, 0.1-10 parts of the composite film-forming agent composition imitating the plant leaf film morphology according to any one of claims 1-4, 0.1-10 parts of auxiliary materials and 20-95 parts of deionized water.

8. The oil-in-water sunscreen lotion according to claim 7, characterized in that: The sunscreen agent includes any one of zinc oxide, titanium dioxide, ethylhexyl methoxycinnamate, octocrylene, isoamyl p-methoxycinnamate, bis-ethylhexyloxyphenol methoxyphenyl triazine, diethylaminohydroxybenzoyl hexyl benzoate, ethylhexyl triazone, ethylhexyl salicylate, homosalate, methylene bis-benzotriazolyl tetramethylbutylphenol, phenylbenzimidazole sulfonic acid, disodium phenyl dibenzimidazole tetrasulfonate, butyl methoxydibenzoylmethane, and drometrizole trisiloxane, or a combination of at least two thereof; Preferably, the sunscreen is phenylbenzimidazole sulfonic acid, ethylhexyl salicylate, homosalate, diethylaminohydroxybenzoyl hexyl benzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine and methylene bis-benzotriazolyl tetramethylbutylphenol; Preferably, the emollient comprises any one or a combination of at least two of polydimethylsiloxane, cyclopentasiloxane, dibutyl adipate, isododecane, isohexadecane, isononyl isononanoate, octyl polymethicone, neopentyl glycol dicaprate, diisopropyl sebacate or propylene carbonate; Preferably, the emulsifier includes any one or a combination of at least two of cetearyl glucoside, PEG-10 dimethicone, C12-20 alkyl glucoside, cocoyl glucoside, PEG-100 stearate, sorbitan sesquioleate or lauryl PEG-10 tris(trimethylsiloxy)silylethyl dimethicone; Preferably, the excipients include any one or a combination of at least two of glycerol, 1,3-propylene glycol, butylene glycol, preservatives, disodium EDTA, disteardimethylammonium hectorite, tromethamine, xanthan gum, carbomer, hydroxyethyl cellulose, ammonium acryloyldimethyltaurate / VP copolymer or acrylic acid (ester) / C10-30 alkyl acrylate cross-linked polymer.

9. The method for preparing the oil-in-water sunscreen lotion according to claim 7 or 8, characterized in that: The preparation method comprises: mixing and homogenizing a sunscreen, a moisturizer, an emulsifier, a composite film-forming agent composition imitating the plant leaf film morphology according to any one of claims 1 to 4, auxiliary materials and deionized water to obtain the oil-in-water sunscreen lotion.

10. The method for preparing the sunscreen lotion according to claim 9, characterized in that: The preparation method comprises: (1) mixing the composite film-forming agent composition, auxiliary materials and water to obtain an aqueous phase; The emulsifier, part of the sunscreen and the emollient are mixed to obtain an oil phase; (2) mixing the water phase and the oil phase homogenously, then adding the remaining sunscreen, and continuing to mix homogenously to obtain the oil-in-water sunscreen lotion; Preferably, the mixing temperature during the preparation of the aqueous phase in step (1) is 80-85°C; Preferably, the mixing temperature during the preparation of the oil phase in step (1) is 80-85°C; Preferably, the part of the sunscreen in step (1) is phenylbenzimidazole sulfonic acid, ethylhexyl salicylate, homosalate, diethylaminohydroxybenzoyl hexyl benzoate and bis-ethylhexyloxyphenol methoxyphenyl triazine; Preferably, the remaining sunscreen in step (2) is methylene bis-benzotriazolyl tetramethylbutylphenol; Preferably, the temperature is lowered to 45-60° C. before adding the remaining sunscreen in step (2).

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