Search

CN-122005333-A - Composition and product for improving sun-screening performance and preparation method thereof

CN122005333ACN 122005333 ACN122005333 ACN 122005333ACN-122005333-A

Abstract

The invention discloses a composition for improving sun-screening performance, a product and a preparation method thereof, wherein the composition comprises, by mass, 5-32 parts of di-fatty acyl pentaerythritol di-fatty alcohol citrate, 5-32 parts of tricresyl essence and 61.5-90.9 parts of salicylate derivatives. The salicylate sunscreen cosmetic with low greasy feel is compounded with the di-fatty acyl pentaerythritol di-fatty alcohol citrate and the tricresyl essence, so that the salicylate sunscreen cosmetic with low sun-screening efficiency has excellent sun-screening efficiency while maintaining excellent skin feel.

Inventors

  • JIA BAOTONG
  • Ling Meitong
  • ZHOU YUPENG
  • CHEN GANG
  • SUN PEIWEN

Assignees

  • 珀莱雅化妆品股份有限公司

Dates

Publication Date
20260512
Application Date
20260320

Claims (11)

  1. 1. A composition for improving sun-screening performance is characterized by comprising, by mass, 5-32 parts of di-fatty acyl pentaerythritol di-fatty alcohol citrate, 5-32 parts of tricresyl essence and 61.5-90.9 parts of salicylate derivatives.
  2. 2. A composition for enhancing sunscreen properties according to claim 1, wherein the fatty acyl groups of said di-fatty acyl pentaerythritol di-fatty alcohol citrate have a carbon chain length of from 8 to 16.
  3. 3. A composition for enhancing sunscreen properties according to claim 1 wherein the fatty alcohol of said di-fatty acyl pentaerythritol di-fatty alcohol citrate has a carbon chain length of from 16 to 22.
  4. 4. A composition for improving sunscreen performance according to claim 1, wherein the mass ratio of di-fatty acyl pentaerythritol di-fatty alcohol citrate to tri-behenine is 1:5-5:1.
  5. 5. A composition for improving sunscreen properties according to claim 4, wherein the mass ratio of di-fatty acyl pentaerythritol di-fatty alcohol citrate to tri-behenine is 1:1-4:1.
  6. 6. A composition for improving sunscreen performance according to claim 1, wherein said salicylate derivative is at least one member selected from the group consisting of ethylhexyl salicylate, octyl salicylate, homosalate, butyl octanol salicylate.
  7. 7. A composition for improving sunscreen properties according to claim 1, wherein the total mass of the mixture of di-fatty acyl pentaerythritol di-fatty alcohol citrate and tribasic behenate is from 10 to 38.5% of the total composition mass.
  8. 8. A composition for improving sunscreen properties according to claim 7, wherein the total mass of the mixture of di-fatty acyl pentaerythritol di-fatty alcohol citrate and tribasic behenate is 15-25% of the total composition mass.
  9. 9. A sunscreen cosmetic comprising the composition according to any one of claims 1 to 8.
  10. 10. A sunscreen cosmetic according to claim 9, wherein the composition is added in an amount of 4 to 10% by mass of the cosmetic.
  11. 11. The method for preparing a sunscreen cosmetic according to claim 9, comprising the steps of: (1) Dissolving di-fatty acyl pentaerythritol di-fatty alcohol citrate and tricresyl in salicylic acid derivative to obtain sunscreen composition; (2) Dispersing zinc oxide in grease and an emulsifying agent, uniformly dispersing, and fully grinding to obtain powder slurry; (3) Uniformly dispersing the powder slurry in the sun-proof composition, and adding an oil phase component to obtain an oil phase; (4) Preparing an aqueous phase; (5) Adding the water phase into the oil phase for emulsification to obtain the sunscreen cosmetic.

Description

Composition and product for improving sun-screening performance and preparation method thereof Technical Field The invention relates to a sun-screening composition, in particular to a composition for improving sun-screening performance, a product and a preparation method thereof. Background Ultraviolet light is a major factor in exogenous aging and damage of skin. Sunscreens can be classified into two kinds, inorganic sunscreens (such as zinc oxide, titanium dioxide, etc.), which are effective by reflecting/refracting ultraviolet rays, and organic sunscreens (avobenzone, ethylhexyl methoxycinnamate, ethylhexyl triazone, etc.), which are protective by absorbing and converting ultraviolet rays. Currently, sun protection products have been widely used in light protection scenes such as daily commutes. Although the current sun protection product market is popular, the core technology still has obvious contradictory defects, and the sun protection efficiency is focused on the opposition of skin feel experience. On the one hand, the traditional organic sun-screening agent (containing p-methoxy cinnamic acid esters, camphor derivatives, benzotriazoles, octocrylene and the like) has excellent sun-screening efficiency, can realize strong ultraviolet protection, is a core component of the existing mainstream sun-screening products, but has the problem of heavy skin feel burden, has certain permeability, not only causes safety disputes, but also causes more serious influence on the use experience of consumers due to greasy skin feel, and on the other hand, although the salicylic acid sun-screening agent and related sun-screening synergistic agent have remarkable advantages, namely fresh and non-sticky skin feel, can greatly improve the use comfort of the products, but the core short plates of the components have lower sun-screening efficiency and limited protective capability, so the core short plates cannot be used as the first choice of sun-screening agents or sun-screening synergistic agents in sun-screening products. From the perspective of inorganic sunscreens, non-nano physical sunscreens generally have the advantages of high temperature and low permeability, but have the problems of low ultraviolet protection efficiency, whitening and the like, and nano physical sunscreens have high ultraviolet protection efficiency and excellent transparency, but can cause secondary damage to skin due to certain photocatalytic activity. Therefore, how to realize synergistic effect through scientific compounding of components and solve the technical problems of multi-dimensional mutual restriction such as sun-screening efficiency, skin feel experience, safety, mildness and the like becomes a core challenge in the current sun-screening product development field. In order to overcome the technical bottleneck, researchers have conducted a great deal of research, and found that the wax component can realize sun protection and synergy in sun protection products through multiple mechanisms, and is hopeful to alleviate the contradiction between skin feel and efficiency. However, different waxes can show different crystallization behaviors (coarse crystallization causes obvious thickening phenomenon of paste to influence sensory experience, uneven crystallization causes non-uniform viscosity and texture of paste) due to the influence of molecular structures, so that the different waxes show different skin feel and states in cosmetics (such as refreshing and non-sticky skin feel caused by compounding cetyl alcohol and stearyl alcohol proposed in JP 2020152569A), and therefore, the variety and proportion of the waxes are critical factors for the application of wax components in sun-screening products. Disclosure of Invention The invention aims to provide a composition for improving sun-screening performance, a product and a preparation method thereof. The salicylate sunscreen cosmetic with low greasy feel is compounded with the specific wax substances, so that the salicylate sunscreen cosmetic with low sun-screening efficiency has excellent sun-screening efficiency while maintaining excellent skin feel. The technical scheme of the invention is that the composition for improving sun-screening performance comprises, by mass, 5-32 parts of di-fatty acyl pentaerythritol di-fatty alcohol citrate, 5-32 parts of tricresyl essence and 61.5-90.9 parts of salicylate derivatives. In the composition for improving sun protection performance, the fatty acyl group of the di-fatty acyl pentaerythritol di-fatty alcohol citrate has a carbon chain length of 8-16 and an average carbon chain length of 12. In the composition for improving sun protection performance, the fatty alcohol of the di-fatty acyl pentaerythritol di-fatty alcohol citrate has a carbon chain length of 16-22. In the aforementioned composition for improving sun protection, the fatty alcohol of the di-fatty acyl pentaerythritol di-fatty alcohol citrate has a carbon chain length of 18. In th