CN-121971324-A - Sun-screening composition with strong waterproof performance and application thereof in sun-screening product

Abstract

The invention relates to a sun-screening composition with strong waterproof performance and application thereof in sun-screening products, wherein the sun-screening composition with strong waterproof performance consists of polysiloxane-15, dextrin palmitate, trimethylsiloxysilicate, VP/hexadecene copolymer and sunflower seed oil unsaponifiable matter. The invention creatively combines five components of polysiloxane-15, dextrin palmitate, trimethylsiloxysilicate, VP/hexadecene copolymer and sunflower seed oil unsaponifiable matter, and the five raw materials cooperate with each other to form an excellent stable waterproof film-forming system, which can effectively resist the erosion of water immersion, perspiration and other scenes after use, has waterproof durability far exceeding that of the existing waterproof sun-proof product of a single film-forming agent, can still keep good sun-proof and waterproof effects after water immersion, and meets the high-strength waterproof requirements of outdoor, swimming and the like.

Inventors

• YE XIULIN
• LUO SHAOQIANG
• LIU JINGHUA
• Xu Yujiangsheng
• LI QIUXI
• ZHOU WEI
• HUANG CHUWEN
• LI JINXING
• LU XINLIAN

Assignees

• 广州海龟爸爸生物科技有限公司

Dates

Publication Date

20260505

Application Date

20260330

Claims (10)

1. 1. A sun-screening composition with strong waterproof performance is characterized by comprising the following components of polysiloxane-15, dextrin palmitate, trimethylsiloxysilicate, VP/hexadecene copolymer and sunflower seed oil unsaponifiable matter.
2. 2. The sun-screening composition with strong waterproof performance according to claim 1, wherein the sun-screening composition with strong waterproof performance consists of, by mass, 0.5-3 parts of polysiloxane-15, 0.5-4 parts of dextrin palmitate, 1-5 parts of trimethylsiloxysilicate, 0.5-3 parts of VP/hexadecene copolymer and 0.05-3 parts of sunflower seed oil unsaponifiable matter.
3. 3. Use of a sunscreen composition according to claim 1 or 2 having strong water repellency in the manufacture of a sunscreen product.
4. 4. The method according to claim 3, wherein the sunscreen product comprises a form selected from the group consisting of a sunscreen lotion, a cream, and a spray; Preferably, the sunscreen composition comprises 3-10% by mass of the sunscreen product.
5. 5. A sun block having strong water-repellent properties, characterized in that the components of the sun block comprise the sun block composition having strong water-repellent properties of claim 1 or 2, a sun block agent, an emulsifier, an emollient, a humectant, an antioxidant and a solvent.
6. 6. The sun-protection milk according to claim 5, wherein the components of the sun-protection milk comprise 3-10% of the sun-protection composition with strong water-proof property according to claim 1 or 2, 5-25% of sun-proof agent, 1-10% of emulsifying agent, 15-40% of emollient, 5-15% of humectant, 0.1-1% of antioxidant and 15-50% of solvent in mass percent.
7. 7. The sun block of claim 5 or 6, wherein the components of the sun block further comprise any one or a combination of at least two of a sun block enhancer, a stabilizer, or a skin feel modifier; preferably, the components of the sun protection milk further comprise any one or a combination of at least two of 1-10% of sun protection synergistic agent, 0.5-3% of stabilizing agent or 1-10% of skin feel regulator in percentage by mass.
8. 8. The sun block of claim 6, wherein the sun block comprises a physical sun block and/or a chemical sun block; preferably, the emollient comprises any one or a combination of at least two of dioctyl carbonate, diisopropyl sebacate, isododecane, polydimethylsiloxane; preferably, the humectant comprises any one or a combination of at least two of glycerin, propylene glycol, butylene glycol or hexylene glycol.
9. 9. The sun block of claim 7 wherein the sun block enhancer comprises butyl octanol salicylate.
10. 10. The sun block of claim 7 wherein the stabilizing agent comprises a combination of disteardimonium hectorite and magnesium sulfate; preferably, the mass ratio of distearyl dimethylammonium hectorite to magnesium sulfate is 1:2-3:1; Preferably, the skin feel modifier comprises silica.

Description

Sun-screening composition with strong waterproof performance and application thereof in sun-screening product Technical Field The invention belongs to the technical field of cosmetics, and relates to a sun-screening composition with strong waterproof performance and application thereof in sun-screening products. Background Ultraviolet radiation is a major cause of exogenous aging, erythema, sunburn and even skin cancer of the skin, wherein the UVB wave band is easy to cause acute skin injury, and the UVA wave band accelerates skin photoaging, so that efficient sun protection has become a core requirement for daily skin care and outdoor protection. Along with the diversification of outdoor activities of consumers, the scenes such as swimming, sports and perspiration bring higher requirements to the waterproof performance of the sun-proof product, and the existing sun-proof product generally has the technical pain points that the waterproof durability is poor and the sun-proof and waterproof performance are difficult to be compatible. At the same time, partial products are excessive oil-soluble components which are required to achieve the waterproof effect, so that skin feel is greasy, pores are blocked, skin irritation is easy to occur, and the waterproof capability and the sunscreen durability are greatly reduced by reducing the oil-soluble components. In addition, in the existing sun-proof product system, the sun-proof component and the waterproof component are poor in compatibility, layering and precipitation are easy to occur, the long-term stability and the use effect of the product are further affected, and multiple requirements of consumers on strong water resistance, high sun-proof performance, mildness and refreshing performance are difficult to meet. Therefore, the sun-proof composition with good stability, strong water resistance and excellent sun-proof performance is developed, and the sun-proof composition has important practical significance and application value. Disclosure of Invention In view of the shortcomings of the prior art, the present invention aims to provide a sunscreen composition having excellent water resistance, stability and sun protection properties and application thereof in a sunscreen product. In order to achieve the aim of the invention, the invention adopts the following technical scheme: In a first aspect, the present invention provides a sunscreen composition having strong water repellency consisting of polysiloxane-15, dextrin palmitate, trimethylsiloxysilicate, VP/hexadecene copolymer, and sunflower seed oil unsaponifiable. The invention creatively combines five components of polysiloxane-15, dextrin palmitate, trimethylsiloxysilicate, VP/hexadecene copolymer and sunflower seed oil unsaponifiable matter, and is used as a waterproof functional component in a sun-proof product, wherein polysiloxane-15 is used as a basic film-forming framework, lays a foundation for a waterproof system, and can promote the dispersion uniformity of other three components in the composition, wherein dextrin palmitate can enhance the compatibility and binding force of the other three components, promote the rapid formation of a composite film layer, realize the cooperative promotion of sun-proof and waterproof, wherein trimethylsiloxysilicate is used as a rigid film-forming agent, can form a tough and compact hydrophobic film layer, enhances the wear resistance and the water immersion resistance of the film layer, and further enhances the compactness and stability of the film layer by adopting the VP/hexadecene copolymer as an oil-soluble high-molecular film-forming agent, can form a soft and compact continuous film-covering film on the surface of skin, and the hydrophobic group can enhance the water repellency of the film layer, and simultaneously can promote the flexibility of the film-forming performance of the trimethyl siloxysilicate, and the film-forming agent can promote the softness and the softness of the film-forming system, and the crack resistance of the film-forming system is further solved, and the problem of the film-forming system is further solved, and the integral and the film-forming system is not fully broken. The five raw materials cooperate with each other to form an excellent stable waterproof film-forming system, and after the PMMA plate with the surface coated with the composition is immersed in water by 80 min, the SPF value reduction rate is not more than 30 percent. In addition, the polysiloxane-15 also has ultraviolet absorption function and sun-proof performance, and the dextrin palmitate and sunflower seed oil unsaponifiable matter have sun-proof synergistic effect, so that the sun-proof performance of the sun-proof agent can be improved. Preferably, the sun-screening composition with the strong waterproof performance comprises, by mass, 0.5-3 parts of polysiloxane, 0.5-4 parts of dextrin palmitate, 1-5 parts of trimethylsiloxysilicate, 0.5-3 parts of VP/hexad