Composition with full-wave-band invisible light-blocking and sun-blocking effects and application thereof

Abstract

The invention provides a composition with full-wave-band invisible light-blocking and sun-screening effects and application thereof. The composition comprises zinc oxide, lactobacillus / soybean milk fermentation product filtrate, a sun-screening auxiliary agent and a dispersing agent, the sun-screening auxiliary agent comprises silica, sodium calcium aluminum silicate, a vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer, polymethyl methacrylate, a silane coupling agent, a silane coupling agent and a solvent. The silicone rubber is any one or a combination of at least two of diphenyl polydimethylsiloxane / vinyl diphenyl polydimethylsiloxane / silsesquioxane cross-linked polymer or polymethyl silsesquioxane; the dispersing agent is prepared from any one or a combination of at least two of polyhydroxystearic acid, cholesteryl hydroxystearate, dimeric pentaerythritol pentaisostearate, ethylhexyl hydroxystearate or dimeric pentaerythritol tri-polyhydroxystearate. The composition can increase the full-wave-band sunscreen performance, avoid skin sunburn, sunburn and sunburn red, and enhance the skin barrier.

Description

Technical Field

[0001] The invention belongs to the technical field of cosmetics, and in particular relates to a composition with full-band invisible light-blocking and sunscreen effects and an application thereof. Background Art

[0002] In recent years, consumers have paid more and more attention to the safety of sunscreen products. Inorganic physical sunscreens titanium dioxide and zinc oxide have surpassed traditional chemical sunscreens with their safety properties of being difficult to penetrate and oxidize. Sunscreen products claiming to be purely physical sunscreens with different sun protection indexes are emerging in an endless stream. However, pure physical sunscreens have the defect of high false whiteness. When the amount added is small, the sun protection index is low. When the amount added is high, it has a noticeable false white feeling when applied on the face, which is not beautiful. Zinc oxide has a lower false whiteness than titanium dioxide. In order to make up for the shortcoming of zinc oxide's absorption in the UVB band, it is often compounded with other ingredients to improve the sunscreen performance in the entire band.

[0003] CN108078848A discloses a sunscreen synergistic composition, which contains lithospermum officinale extract, ginger root extract, bisabolol, and epigallocatechin gallate, and the weight ratio between any two of them is 1:1-14:1. The composition can be added to a conventional sunscreen, and the mass ratio of the composition to the total formula is 12.5wt%-18wt%. The composition itself has no sunscreen effect, but combined with a conventional sunscreen, it has the effect of greatly improving the sun protection index, providing a new idea for making high SPF value sunscreen products.

[0004] CN117643549A discloses a fast film-forming, long-lasting, and rub-proof high-factor sunscreen liquid, wherein the sunscreen synergistic component includes a combination of butyl octanol salicylate, trimethylsiloxysilicate, and stearalkonium hectorite. By selectively selecting three sunscreen synergistic components with different action mechanisms, the effects of fast film-forming and long-lasting rub-proofing are achieved, while the sunscreen value is increased and the use of sunscreen agents is reduced.

[0005] Although the above-mentioned compound ingredients have certain sunscreen enhancement effects, they all have risks. Antioxidants cause obvious odor and appearance changes due to their own oxidative properties, which is not conducive to long-term storage; high addition of butyl octanol salicylate will also cause irritation to the product. Based on the above, it is urgent to develop a sunscreen enhancement product with safe ingredients, non-irritating properties, and good skin feel. Summary of the invention

[0006] In view of the deficiencies in the prior art, the object of the present invention is to provide a composition with full-band invisible light-blocking and sunscreen effects and its application. The composition provided by the present invention can effectively block full-band ultraviolet radiation, avoid skin sunburn, tanning, and redness, and enhance the skin barrier.

[0007] In order to achieve the purpose of the invention, the present invention adopts the following technical solutions:

[0008] In a first aspect, the present invention provides a composition with an all-band invisible light-blocking sunscreen effect, the composition comprising zinc oxide, Lactobacillus / Soybean Fermentation Product Filtrate, a sunscreen aid, and a dispersant;

[0009] The sunscreen aid includes any one or a combination of at least two of silica, calcium sodium aluminosilicate, vinyl polydimethylsiloxane / polymethylsiloxane sesquisiloxane cross-linked polymer, polymethyl methacrylate, diphenyl polydimethylsiloxane / vinyl diphenyl polydimethylsiloxane / sesquisiloxane cross-linked polymer, or polymethyl sesquisiloxane;

[0010] The dispersant includes any one or a combination of at least two of polyhydroxystearic acid, cholesteryl hydroxystearate, dipentaerythritol pentaisostearate, ethylhexyl hydroxystearate, or dipentaerythritol tri-polyhydroxystearate.

[0011] In the present invention, zinc oxide, as a physical sunscreen, has good light stability, can protect the skin from ultraviolet sunburn, takes effect immediately upon application, provides immediate protection, and has an invisible and non-whitening effect; Lactobacillus / Soybean Fermentation Product Filtrate contains various active molecules such as amino acids, proteins, and phospholipids, has good skin affinity, can improve the strain diversity of beneficial bacteria on the skin surface, enrich the skin microbiome, promote the microecological balance of the skin surface layer, enhance the skin barrier, and resist the intrusion of external factors on the skin.

[0012] The composition provided by the present invention can effectively block ultraviolet radiation in the full band, protect the skin from sunburn, tanning, and sunburn redness, avoid skin aging caused by long-term exposure to sunlight, has safe and non-irritating ingredients, is gentle to the skin and not likely to cause allergic reactions, and enhances the skin barrier. Lactobacillus / Soybean Fermentation Product Filtrate has a synergistic effect with the sunscreen aid and the dispersant, and can effectively enhance the all-band ultraviolet protection effect.

[0013] Preferably, the composition comprises 5 - 20 parts by weight of zinc oxide, 0.05 - 0.3 parts by weight of Lactobacillus / Soybean Fermentation Product Filtrate, 1 - 5 parts by weight of the sunscreen aid, and 0.05 - 0.5 parts by weight of the dispersant.

[0014] In the present invention, zinc oxide, Lactobacillus / Soybean Fermentation Product Filtrate, the sunscreen aid, and the dispersant have excellent effects of resisting ultraviolet rays and protecting the skin barrier under the above specific ratios.

[0015] The parts by weight of the zinc oxide can be 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts, 20 parts, etc.

[0016] The weight parts of the filtrate of Lactobacillus / Soybean Milk Fermentation Product can be 0.05 part, 0.08 part, 0.1 part, 0.12 part, 0.15 part, 0.18 part, 0.2 part, 0.22 part, 0.25 part, 0.28 part, 0.3 part, etc.

[0017] The weight parts of the sunscreen aid can be 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, etc.

[0018] The weight parts of the dispersant can be 0.05 part, 0.1 part, 0.15 part, 0.2 part, 0.25 part, 0.3 part, 0.35 part, 0.4 part, 0.45 part, 0.5 part, etc.

[0019] Other specific point values within the above numerical ranges can be selected and will not be elaborated one by one here.

[0020] Preferably, the sunscreen aid includes silica (the first sunscreen aid), and also includes any one or a combination of at least two of calcium sodium aluminosilicate, vinyl polydimethylsiloxane / polymethylsiloxane sesquisiloxane cross-linked polymer, polymethyl methacrylate, diphenyl polydimethylsiloxane / vinyl diphenyl polydimethylsiloxane / sesquisiloxane cross-linked polymer or polymethyl sesquisiloxane (the second sunscreen aid).

[0021] More preferably, the sunscreen aid is a combination of silica and calcium sodium aluminosilicate.

[0022] Preferably, the dispersant includes polyhydroxystearic acid (the first dispersant), and also includes any one or a combination of at least two of cholesteryl hydroxystearate, dipentaerythritol pentaisostearate, ethylhexyl hydroxystearate or dipentaerythritol tri-polyhydroxystearate (the second dispersant).

[0023] More preferably, the dispersant is a combination of polyhydroxystearic acid and cholesteryl hydroxystearate.

[0024] In the present invention, the silica is natural micron-sized spherical silica (3 - 20 μm), which has good skin feel regulating performance; calcium sodium aluminosilicate has good adsorption performance, helps absorb excess oil, and makes the skin feel more refreshed and non-greasy. The present invention creatively discovers that silica and calcium sodium aluminosilicate have a synergistic effect, and as a sunscreen aid, it can further assist in scattering more ultraviolet rays and enhance the sunscreen effect.

[0025] In the present invention, polyhydroxystearic acid has good affinity for the skin, helps the components to be evenly dispersed, and reduces the formation of marks; cholesteryl hydroxystearate can reduce water loss, enhance the skin barrier, and prolong the sun protection time. The present invention creatively discovers that polyhydroxystearic acid and cholesteryl hydroxystearate have a synergistic effect, and as a dispersant, it can further assist in scattering more ultraviolet light and enhance the sun protection effect.

[0026] Preferably, the mass ratio of the first sunscreen auxiliary agent to the second sunscreen auxiliary agent is (1 - 5):(1 - 5).

[0027] The specific point values in the first (1 - 5) can be 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, etc.; the specific point values in the second (1 - 5) can be 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, etc.

[0028] Preferably, the mass ratio of the first dispersant to the second dispersant is (1 - 5):(1 - 5).

[0029] The specific point values in the first (1 - 5) can be 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, etc.; the specific point values in the second (1 - 5) can be 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, etc.

[0030] Other specific point values within the above numerical ranges can be selected and will not be elaborated one by one here.

[0031] In the second aspect, the present invention provides an application of the composition as described in the first aspect in the preparation of a sunscreen product.

[0032] Preferably, the sunscreen product includes lotion, cream, gel, essence, essential oil or spray; the mass percentage content of the composition in the sunscreen product is 0.1 - 30%, for example, it can be 0.1%, 0.5%, 1%, 3%, 5%, 10%, 15%, 20%, 25%, 30%, etc.

[0033] Other specific point values within the above numerical ranges can be selected and will not be elaborated one by one here.

[0034] In the third aspect, the present invention provides a sunscreen milk with a full - band invisible light - blocking sunscreen effect. The sunscreen milk includes, by weight, 0.1 - 30 parts of the composition as described in the first aspect, 1 - 5 parts of a film - forming agent, 25 - 35 parts of an emollient, 0.1 - 1 part of a viscosity regulator, 1 - 5 parts of an emulsifier, 0.1 - 1 part of a stabilizer, 5 - 10 parts of a polyol, and 20 - 80 parts of deionized water.

[0035] The sunscreen provided by the present invention can effectively block ultraviolet radiation in the entire wavelength range, protect the skin from sunburn, prevent skin tanning and redness caused by long-term exposure to sunlight, has safe and non-irritating ingredients, is gentle on the skin and is not likely to cause allergic reactions, and enhances the skin barrier.

[0036] The weight parts of the composition can be 0.1 part, 0.5 part, 1 part, 3 parts, 5 parts, 10 parts, 15 parts, 20 parts, 25 parts, 30 parts, etc.

[0037] The weight parts of the film-forming agent can be 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, etc.

[0038] The weight parts of the emollient can be 25 parts, 26 parts, 27 parts, 28 parts, 29 parts, 30 parts, 31 parts, 32 parts, 33 parts, 34 parts, 35 parts, etc.

[0039] The weight parts of the viscosity regulator can be 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part, 1 part, etc.

[0040] The weight parts of the emulsifier can be 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, etc.

[0041] The weight parts of the stabilizer can be 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part, 1 part, etc.

[0042] The weight parts of the polyol can be 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts, 9.5 parts, 10 parts, etc.

[0043] The weight parts of the deionized water can be 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, 45 parts, 50 parts, 55 parts, 60 parts, 65 parts, 70 parts, 75 parts, 80 parts, etc.

[0044] Other specific point values within the above numerical ranges can be selected and will not be elaborated one by one here.

[0045] Preferably, the film-forming agent includes any one or a combination of at least two of trimethylsiloxysilicate, poly C10-30 alkanol acrylate, or methyl hydrogenated abietate.

[0046] More preferably, the film-forming agent is a combination of trimethylsiloxysilicate, poly C10-30 alkanol acrylate, and methyl hydrogenated abietate.

[0047] In the present invention, trimethylsiloxysilicate, poly(C10-30)alkyl acrylate, and methyl hydrogenated abietate have a synergistic effect, and can form a thin and breathable protective film on the skin surface, enhancing the waterproof property of the sunscreen milk, while enhancing the sunscreen barrier and improving the durability of sun protection.

[0048] Preferably, the emollient includes any one or a combination of at least two of isododecane, polydimethylsiloxane, diisopropyl sebacate, isononyl isononanoate, propylene carbonate, squalane, C10-18 triglycerides, cetyl ethylhexanoate, or diisostearyl malate.

[0049] Preferably, the viscosity regulator includes any one or a combination of at least two of dimethyldistearylammonium lithium montmorillonite, quaternium-18 bentonite, stearalkonium bentonite, or quaternium-90 bentonite.

[0050] Preferably, the emulsifier includes any one or a combination of at least two of lauryl PEG-8 dimethicone, PEG-10 dimethicone, glyceryl stearate, PEG-9 dimethicone copolyol, sorbitan isostearate, dimethicone PEG-10 / 15 crosslinked polymer, or cetyl PEG / PPG-10 / 1 dimethicone.

[0051] Preferably, the stabilizer includes any one or a combination of at least two of sodium chloride, magnesium chloride, calcium chloride, or magnesium sulfate.

[0052] Preferably, the polyol includes any one or a combination of at least two of butanediol, 1,2-hexanediol, 1,2-pentanediol, ethylene glycol, propylene glycol, dipropylene glycol, glycerol, polyethylene glycol, or sorbitol.

[0053] Preferably, the sunscreen milk further includes 0.5-1 part by weight of a preservative.

[0054] The weight parts of the preservative can be 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part, 1 part, etc.

[0055] Preferably, the preservative includes any one or a combination of at least two of phenoxyethanol, sodium benzoate, or chlorphenesin.

[0056] Other specific point values within the above numerical ranges can all be selected, and will not be elaborated one by one here.

[0057] Fourthly, the present invention provides a preparation method of a sunscreen milk as described in the third aspect, and the preparation method includes:

[0058] (1) Mixing a sunscreen aid, a film-forming agent, an emollient, and a viscosity regulator to obtain a Phase A;

[0059] Mix zinc oxide, dispersant and emulsifier to obtain Phase B;

[0060] Mix Lactobacillus / Soybean Milk Fermentation Product Filtrate, stabilizer, polyol and deionized water to obtain Phase C;

[0061] (2) Mix Phase A and Phase B, and then homogenize with Phase C to obtain the sunscreen milk.

[0062] Preferably, in step (1), the mixing method during the preparation of Phase A, Phase B and Phase C is stirring.

[0063] Preferably, in step (2), the mixing method is to add Phase A to Phase B and stir, and the mixing time is 3 - 10 min, for example, it can be 3 min, 4 min, 5 min, 6 min, 7 min, 8 min, 9 min, 10 min, etc.

[0064] Preferably, in step (2), the homogenization method is to add Phase C under stirring, and the homogenization time is 3 - 10 min, for example, it can be 3 min, 4 min, 5 min, 6 min, 7 min, 8 min, 9 min, 10 min, etc.; after homogenization, it further includes a vacuum degassing step.

[0065] Other specific point values within the above numerical ranges can be selected, and will not be elaborated one by one here.

[0066] Compared with the prior art, the present invention has the following beneficial effects:

[0067] The composition and sunscreen milk provided by the present invention can effectively block ultraviolet radiation in the full wavelength band, protect the skin from sunburn, and avoid skin tanning and redness caused by long-term exposure to sunlight. The ingredients are safe and non-irritating, gentle to the skin and not likely to cause allergic reactions, and can enhance the skin barrier. Lactobacillus / Soybean Milk Fermentation Product Filtrate has a synergistic effect with sunscreen aids and dispersants, and can effectively enhance the ultraviolet protection effect in the full wavelength band. Detailed Embodiments

[0068] To further illustrate the technical means and effects adopted by the present invention, the following further describes the technical solutions of the present invention with reference to the preferred embodiments of the present invention, but the present invention is not limited to the scope of the embodiments.

[0069] For those not specifying specific techniques or conditions in the embodiments, follow the techniques or conditions described in the literature in this field, or follow the product instructions. For reagents or instruments not specifying the manufacturer, they are all conventional products that can be obtained through regular commercial channels.

[0070] The sources of the materials used in the following specific embodiments are shown as follows:

[0071] Table 1

[0072]

[0073] Example 1

[0074] This example provides a sunscreen lotion with a full-band invisible light-blocking sunscreen effect, which includes the following components in parts by weight:

[0075] Table 2

[0076]

[0077] Its preparation method is as follows:

[0078] (1) Mix the sunscreen aid, film-forming agent, emollient and viscosity regulator, and stir evenly to obtain Phase A; mix zinc oxide, dispersant and emulsifier, stir and grind evenly to obtain Phase B; mix the filtrate of Lactobacillus / Soybean Fermentation Product, stabilizer, polyol and deionized water, and stir evenly to obtain Phase C;

[0079] (2) Add Phase A to Phase B, homogenize for 5 min, add Phase C under stirring, homogenize for 5 min, and degas under vacuum to obtain the sunscreen lotion.

[0080] Example 2

[0081] This example provides a sunscreen lotion with a full-band invisible light-blocking sunscreen effect, which includes the following components in parts by weight:

[0082] Table 3

[0083]

[0084] Its preparation method is as follows:

[0085] (1) Mix the sunscreen aid, film-forming agent, emollient and viscosity regulator, and stir evenly to obtain Phase A; mix zinc oxide, dispersant and emulsifier, stir and grind evenly to obtain Phase B; mix the filtrate of Lactobacillus / Soybean Fermentation Product, stabilizer, polyol and deionized water, and stir evenly to obtain Phase C;

[0086] (2) Add Phase A to Phase B, homogenize for 3 min, add Phase C under stirring, homogenize for 10 min, and degas under vacuum to obtain the sunscreen lotion.

[0087] Example 3

[0088] This embodiment provides a sunscreen milk with a full-band invisible light-blocking sunscreen effect, which comprises the following components in parts by weight:

[0089] Table 4

[0090]

[0091] Its preparation method is as follows:

[0092] (1) Mix the sunscreen aid, film-forming agent, emollient and viscosity regulator, and stir evenly to obtain Phase A; mix zinc oxide, dispersant and emulsifier, stir and grind evenly to obtain Phase B; mix the filtrate of Lactobacillus / Soybean Fermentation Product, stabilizer, polyol and deionized water, and stir evenly to obtain Phase C;

[0093] (2) Add Phase A to Phase B, homogenize for 10 min, add Phase C under stirring, homogenize for 3 min, and perform vacuum degassing to obtain the sunscreen milk.

[0094] Example 4

[0095] This embodiment provides a sunscreen milk with a full-band invisible light-blocking sunscreen effect, and the difference from Example 1 is only that: calcium sodium aluminosilicate is not added to the sunscreen aid, and the reduced amount is supplemented by silica, and other raw materials and their contents remain unchanged. Its preparation method refers to Example 1.

[0096] Example 5

[0097] This embodiment provides a sunscreen milk with a full-band invisible light-blocking sunscreen effect, and the difference from Example 1 is only that: silica is not added to the sunscreen aid, and the reduced amount is supplemented by calcium sodium aluminosilicate, and other raw materials and their contents remain unchanged. Its preparation method refers to Example 1.

[0098] Example 6

[0099] This embodiment provides a sunscreen milk with a full-band invisible light-blocking sunscreen effect, and the difference from Example 1 is only that: cholesteryl hydroxystearate is not added to the dispersant, and the reduced amount is supplemented by polyhydroxystearic acid, and other raw materials and their contents remain unchanged. Its preparation method refers to Example 1.

[0100] Example 7

[0101] This embodiment provides a sunscreen milk with a full-band invisible light-blocking sunscreen effect, and the difference from Example 1 is only that: polyhydroxystearic acid is not added to the dispersant, and the reduced amount is supplemented by cholesteryl hydroxystearate, and other raw materials and their contents remain unchanged. Its preparation method refers to Example 1.

[0102] Example 8

[0103] This embodiment provides a sunscreen milk with a full-band invisible light-blocking sunscreen effect. The difference from Embodiment 1 is only that methyl hydrogenated abietate is not added, and its reduced amount is proportionally distributed to the other two components of the film-forming agent, while the other raw materials and their contents remain unchanged. Its preparation method refers to Embodiment 1.

[0104] Embodiment 9

[0105] This embodiment provides a sunscreen milk with a full-band invisible light-blocking sunscreen effect. The difference from Embodiment 1 is only that poly(C10-30)alkyl acrylate is not added, and its reduced amount is proportionally distributed to the other two components of the film-forming agent, while the other raw materials and their contents remain unchanged. Its preparation method refers to Embodiment 1.

[0106] Embodiment 10

[0107] This embodiment provides a sunscreen milk with a full-band invisible light-blocking sunscreen effect. The difference from Embodiment 1 is only that trimethylsiloxysilicate is not added, and its reduced amount is proportionally distributed to the other two components of the film-forming agent, while the other raw materials and their contents remain unchanged. Its preparation method refers to Embodiment 1.

[0108] Embodiment 11

[0109] This embodiment provides a sunscreen milk with a full-band invisible light-blocking sunscreen effect. The difference from Embodiment 1 is only that methyl hydrogenated abietate is replaced with an equal amount of PVP tridodecyl, while the other raw materials and their contents remain unchanged. Its preparation method refers to Embodiment 1.

[0110] Comparative Example 1

[0111] This comparative example provides a sunscreen milk with a full-band invisible light-blocking sunscreen effect. The difference from Embodiment 1 is only that the dispersant is not added, and its reduced amount is proportionally distributed to the filtrate of Lactobacillus / Soybean Fermentation Product and the sunscreen aid, while the other raw materials and their contents remain unchanged. Its preparation method refers to Embodiment 1.

[0112] Comparative Example 2

[0113] This comparative example provides a sunscreen milk with a full-band invisible light-blocking sunscreen effect. The difference from Embodiment 1 is only that the sunscreen aid is not added, and its reduced amount is proportionally distributed to the filtrate of Lactobacillus / Soybean Fermentation Product and the dispersant, while the other raw materials and their contents remain unchanged. Its preparation method refers to Embodiment 1.

[0114] Comparative Example 3

[0115] This comparative example provides a sunscreen lotion with a full-spectrum invisible light-blocking sunscreen effect. The difference from Example 1 is only that: the filtrate of Lactobacillus / Soybean Fermentation Product is not added, and its reduced amount is proportionally distributed to the sunscreen aid and the dispersant, while other raw materials and their contents remain unchanged. The preparation method refers to Example 1.

[0116] Comparative Example 4

[0117] This comparative example provides a sunscreen lotion with a full-spectrum invisible light-blocking sunscreen effect. The difference from Example 1 is only that: zinc oxide is replaced with an equal amount of micron-sized titanium dioxide. The preparation method refers to Example 1.

[0118] Test Example 1 Light Stability Detection

[0119] Apply equal amounts of the sunscreen lotions prepared in Examples 1-7 and Comparative Examples 1-4 evenly on polymethyl methacrylate (PMMA) plates (HD6, 5 cm × 5 cm), and the amount of the added sample is 2.0 ± 0.2 mg / cm 2 ; Fix the PMMA plates on the sample rack of the xenon lamp aging chamber, set the spectral range of the xenon lamp to 300 nm - 400 nm, and the irradiance to 36 W / m 2 , and irradiate continuously for 2 hours; After taking out the PMMA plates, use a sunscreen index test system to measure the absorbance of the three PMMA plates after irradiation at 4 sites on each plate; Calculate the average value of the 4 sites of each PMMA plate and the average value of the absorbance of the three PMMA plates, and calculate the light stability. The light stability reduction value A = (A0 - At) / A0 * 100%, where the absorbance value before light irradiation is denoted as A0 and the absorbance value after light irradiation is denoted as At. The larger A is, the more photodegradation occurs and the worse the light stability;

[0120] The test results are shown in Table 5. The sunscreen lotion provided by the present invention has excellent light stability, can effectively enhance ultraviolet protection, and the filtrate of Lactobacillus / Soybean Fermentation Product has a synergistic effect with the sunscreen aid and the dispersant, which can effectively enhance the light stability. The sunscreen aid and the dispersant can further affect the light stability.

[0121] Table 5

[0122]

[0123] Test Example 2 Human Skin Patch Test

[0124] Refer to the method of human skin patch test in the "Technical Specifications for Cosmetics Safety" (2015 Edition) to test the irritation of the product to the skin:

[0125] (1)Test substances: The sunscreen lotions prepared in Examples 1-11; Negative control: blank;

[0126] Subjects: A total of 30 people, male / female, aged 20 - 50 years old;

[0127] (2) Test method: Each subject selects 1 qualified patch tester respectively. Using the closed patch test method, add 0.020 g of the test substance to each patch tester. Specifically, there are multiple pits in each patch tester that can be used as the filling positions for the samples. Different samples occupy different pits, while the blank control of the negative control means no substance is placed in the pit; Use special external tape to apply the patch tester to the flexor side of the subject's forearm. After 24 h, remove the test substance. Observe the skin reaction 30 min, 24 h, and 48 h after removal, and record the results according to the skin reaction grading standard (Table 6) in the "Technical Specifications for Cosmetics Safety" (2015 Edition);

[0128] Table 6

[0129]

[0130] (3) Test results: No skin adverse reactions were observed in 30 subjects 30 min, 24 h, and 48 h after removing the test substance patch tester; The composition and sunscreen milk provided by the present invention are safe and mild, have no irritation to the skin, and have no positive reaction.

[0131] Test Example 3 Determination of the SPF value of the sun protection index

[0132] Refer to the "Method for Determining the Sun Protection Index (SPF Value) of Sunscreen Cosmetics" in the "Technical Specifications for Cosmetics Safety (2015 Edition)":

[0133] (1) Test substances: The sunscreen milks prepared in Examples 1 - 11 and Comparative Examples 1 - 4; Negative control: blank;

[0134] Subjects: Male / female, aged 20 - 50 years old;

[0135] (2) Test method: Use an ultraviolet sun protection index analyzer (solar light source model 601) to irradiate the area with uniform skin color on the subject's back to determine the MED (minimum erythema dose) value of the subject; Divide multiple areas with uniform skin color on the subject's back, and evenly apply the test substance to the corresponding divided areas, with the application amount being 2.00 mg / cm²; After 30 min, irradiate the area coated with the test substance with a specified multiple of the MED irradiation dose. Observe the erythema situation 24 h later, calculate the arithmetic mean of the SPF values of the samples of all subjects, and take the integer part as the SPF value of the test substance being measured;

[0136] (3)Test results: As shown in Table 7, the composition and sunscreen provided by the present invention can effectively block ultraviolet radiation in the full wavelength band and protect the skin from sunburn; the filtrate of Lactobacillus / Soybean Milk Fermentation Product has a synergistic effect with the sunscreen aid and dispersant, which can effectively enhance the ultraviolet protection effect in the full wavelength band; the sunscreen aid, dispersant and film-forming agent can further affect the sunscreen effect.

[0137] Table 7

[0138]

[0139] The present invention uses the above embodiments to illustrate a composition with a full wavelength band invisible light-blocking sunscreen effect and its application, but the present invention is not limited to the above embodiments, that is, it does not mean that the present invention must rely on the above embodiments to be implemented. Those skilled in the art should understand that any improvement of the present invention, the equivalent substitution of each raw material of the product of the present invention, the addition of auxiliary components, and the selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

[0140] The preferred embodiments of the present invention have been 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, various 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.

[0141] In addition, it should be noted that in the above specific embodiments, the various specific technical features described can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

Claims

1. A composition with full-band invisible light-blocking and sunscreen effects, characterized in that: The composition comprises zinc oxide, lactobacillus / soy milk fermentation product filtrate, a sunscreen aid and a dispersant; The sunscreen auxiliary agent includes any one or a combination of at least two of silica, sodium calcium aluminum silicate, vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosspolymer, polymethyl methacrylate, diphenyl polydimethylsiloxane / vinyl diphenyl polydimethylsiloxane / silsesquioxane crosspolymer or polymethyl silsesquioxane; The dispersant includes any one of polyhydroxystearic acid, cholesterol hydroxystearate, dipentaerythritol pentaisostearate, ethylhexyl hydroxystearate or dipentaerythritol tri-polyhydroxystearate, or a combination of at least two thereof.

2. The composition according to claim 1, characterized in that The composition comprises, by weight, 5-20 parts of zinc oxide, 0.05-0.3 parts of lactobacillus / soymilk fermentation product filtrate, 1-5 parts of sunscreen aid and 0.05-0.5 parts of dispersant.

3. The composition according to claim 1 or 2, characterized in that The sunscreen auxiliary agent includes silica, and also includes any one or a combination of at least two of calcium sodium aluminum silicate, vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosspolymer, polymethyl methacrylate, diphenyl polydimethylsiloxane / vinyl diphenyl polydimethylsiloxane / silsesquioxane crosspolymer or polymethyl silsesquioxane; The dispersant includes polyhydroxystearic acid, and also includes any one of cholesterol hydroxystearate, dipentaerythritol pentaisostearate, ethylhexyl hydroxystearate, or dipentaerythritol tri-polyhydroxystearate, or a combination of at least two thereof.

4. Use of the composition according to any one of claims 1 to 3 in the preparation of sunscreen products.

5. The use according to claim 4, characterized in that: The sunscreen product comprises lotion, cream, gel, essence, essence oil or spray; the mass percentage of the composition in the sunscreen product is 0.1-30%.

6. A sunscreen lotion with full-band invisible light-blocking sunscreen effect, characterized in that: The sunscreen lotion comprises, by weight, 0.1-30 parts of the composition of any one of claims 1-3, 1-5 parts of a film former, 25-35 parts of an emollient, 0.1-1 parts of a viscosity regulator, 1-5 parts of an emulsifier, 0.1-1 parts of a stabilizer, 5-10 parts of a polyol and 20-80 parts of deionized water.

7. The sunscreen lotion according to claim 6, characterized in that: The film-forming agent includes any one of trimethylsiloxysilicate, poly C10-30 alkyl acrylate or hydrogenated rosin acid methyl ester or a combination of at least two thereof.

8. The sunscreen lotion according to claim 6, characterized in that: The emollient includes any one or a combination of at least two of isododecane, dimethicone, diisopropyl sebacate, isononyl isononanoate, propylene carbonate, squalane, C10-18 fatty acid triglycerides, cetyl ethylhexanoate or diisostearyl malate; The viscosity modifier includes any one of disteardimethylammonium hectorite, quaternary ammonium salt-18 bentonite, stearalkonium chloride bentonite or quaternary ammonium salt-90 bentonite, or a combination of at least two thereof; The emulsifier includes any one of lauryl PEG-8 dimethicone, PEG-10 dimethicone, glyceryl stearate, PEG-9 polydimethylsiloxyethyl dimethicone, sorbitan isostearate, dimethicone PEG-10 / 15 crosspolymer or cetyl PEG / PPG-10 / 1 dimethicone or a combination of at least two thereof; The stabilizer includes any one of sodium chloride, magnesium chloride, calcium chloride or magnesium sulfate, or a combination of at least two thereof; The polyol includes any one of butanediol, 1,2-hexanediol, 1,2-pentanediol, ethylene glycol, propylene glycol, dipropylene glycol, glycerol, polyethylene glycol or sorbitol, or a combination of at least two thereof.

9. The method for preparing the sunscreen lotion according to any one of claims 6 to 8, characterized in that: The preparation method comprises: (1) mixing a sunscreen additive, a film former, an emollient and a viscosity regulator to obtain a phase A; Mixing zinc oxide, a dispersant and an emulsifier to obtain phase B; mixing a lactobacillus / soymilk fermentation product filtrate, a stabilizer, a polyol and deionized water to obtain a phase C; (2) After mixing phase A and phase B, homogenize with phase C to obtain the sunscreen lotion.

10. The preparation method according to claim 9, characterized in that: In step (1), the mixing method during the preparation of phase A, phase B and phase C is stirring; In step (2), the mixing method is to add phase A into phase B and stir, and the mixing time is 3-10 min; In step (2), the homogenization method is to add phase C under stirring, the homogenization time is 3-10 min, and the step of vacuum degassing is also included after the homogenization.

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