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KR-102963277-B1 - Method for producing a low-viscosity UV-blocking cosmetic composition containing Sphingomonas fermented extract

KR102963277B1KR 102963277 B1KR102963277 B1KR 102963277B1KR-102963277-B1

Abstract

A method for preparing a low-viscosity sunscreen cosmetic composition containing a Sphingomonas fermentation extract according to one embodiment comprises the steps of: preparing phase A by mixing purified water, a thickener, a moisturizer, a preservative, and a water-soluble sunscreen agent; preparing phase B by mixing an oil-soluble sunscreen agent, a nonionic surfactant, and an organic solvent; performing an emulsification process by heating phase A and phase B to 70°C and then mixing them; and performing a degassing process after cooling the emulsified mixture to 25°C following the emulsification process; wherein the thickener contains a Sphingomonas fermentation extract, and the Sphingomonas fermentation extract has a content of 0.05 to 0.50 weight%.

Inventors

  • 주민구
  • 이진재

Assignees

  • 주식회사 더마밀

Dates

Publication Date
20260508
Application Date
20250212

Claims (7)

  1. A method for preparing a low-viscosity sunscreen cosmetic composition comprising a Sphingomonas fermentation extract, A step of preparing Phase A by mixing purified water, a thickening agent, a moisturizer, a preservative, and a water-soluble sunscreen; A step of preparing phase B by mixing a useful UV blocker, a nonionic surfactant, and an organic solvent; A step of performing an emulsification process by heating the above Phase A and the above Phase B to 70℃ and then mixing them; and The method includes the step of cooling the emulsified mixture to 25°C after the above emulsification process and then proceeding with degassing; The above low-viscosity UV-blocking cosmetic composition has a viscosity of 2,000 cP to 10,000 cP, and A method for preparing a low-viscosity cosmetic composition for UV protection, characterized in that the above-mentioned thickening agent comprises a Sphingomonas fermentation extract, and the Sphingomonas fermentation extract has a content of 0.05 to 0.50 weight%.
  2. In paragraph 1, The above-mentioned thickening agent comprises one or more selected from the group consisting of hydroxyethyl acrylate/sodium acryloyl dimethyl taurate copolymer, glyceryl acrylate/acrylic acid copolymer, ammonium acryloyl dimethyl taurate/VP copolymer, acrylate/C10-30 alkyl acrylate crosspolymer, carbomer, xanthan gum, sodium polyacrylate, hydroxyethyl cellulose, carboxyvinyl polymer, polyacrylate crosspolymer, or sodium polyacryloyl dimethyl taurate. A method for preparing a low-viscosity cosmetic composition for UV protection, characterized in that the above-mentioned thickening agent has a content of 0.50 to 2 weight%.
  3. In paragraph 1, The above-mentioned water-soluble sunscreen contains terephthalilylidendicamphorsulfonic acid (TDSA), and A method for preparing a low-viscosity cosmetic composition for UV protection, characterized in that the above terephthalilylidendicamphorsulfonic acid is present in an amount of 0.50 to 5 weight%.
  4. In paragraph 1, A method for preparing a low-viscosity sunscreen cosmetic composition, characterized in that the above-mentioned nonionic surfactant comprises one or more selected from the group consisting of polyglyceryl-6 stearate, polyglyceryl-6 behenate, polyglyceryl-3 methylglucose distearate, PEG-100 stearate, glyceryl stearate, cetearyl oliveate, sorbitan oliveate, polyglyceryl-2 stearate, arachidyl glucoside, C12-20 alkyl glucoside, polyglyceryl-3 distearate, or glyceryl stearate citrate.
  5. In paragraph 1, The above organic solvent comprises at least one of ester oils, silicone oils, hydrocarbon oils, fatty acids, fatty alcohols, animal oils, and vegetable oils, and A method for preparing a low-viscosity cosmetic composition for UV protection, characterized in that the above organic solvent has a content of 8 to 15 weight percent.
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Description

Method for producing a low-viscosity UV-blocking cosmetic composition containing Sphingomonas fermented extract The present disclosure relates to a sunscreen cosmetic composition, and in particular to a low-viscosity type sunscreen comprising a sunscreen component and a skin-protecting component. The present disclosure relates to a sunscreen cosmetic composition, specifically a low-viscosity sunscreen cosmetic composition comprising a Sphingomonas fermentation extract. The present disclosure relates to a cosmetic formulation that provides a UV blocking effect while having minimal white cast and a light feel. As exposure to ultraviolet rays increases due to ozone layer depletion, the importance of sunscreen cosmetics is growing even more. Ultraviolet rays are classified into UV-C, UV-B, and UV-A depending on their wavelength; among these, UV-B penetrates the epidermis and causes erythema, burns, and freckles, while UV-A reaches the dermis and causes wrinkles, melanin formation, skin cancer, and skin aging. In particular, UV-A continuously exerts an impact throughout the year and can cause long-term skin damage due to the lack of noticeable symptoms. Accordingly, the development of sunscreens to protect skin health is essential. As consumer demand for sunscreens increases, manufacturing and formulation technologies are continuously advancing to meet these needs. In particular, while anionic polymers are used to maintain the viscosity of sunscreens, problems may arise in formulations containing the UV blocking ingredient terephthalylidene dicamphor sulfonic acid. Since terephthalylidene dicamphor sulfonic acid is acidic, when combined with anionic polymers, the formulation easily breaks down, and over time, separation occurs, resulting in reduced stability. To address this, formulations containing terephthalilyliden dicamphorsulfonic acid attempt to maintain stability by increasing the content of anionic polymers; however, this increases viscosity, making the texture heavy and difficult to spread evenly on the skin. Additionally, the excessive use of anionic polymers also causes the problem of increasing the cost of the formulation. Therefore, a new organic sunscreen composition capable of solving these problems is required. This composition must maintain stability while having low viscosity for a pleasant user experience, and be economically efficient. To achieve these goals, in addition to anionic polymers, an appropriate combination of various additives and stabilizers is required, and by using a new organic sunscreen composition having such a combination, it is possible to provide consumers with a better sunscreen and effectively protect their skin health. FIG. 1 is a schematic diagram showing a method for preparing a low-viscosity UV-blocking cosmetic composition according to one embodiment. Unless otherwise defined in this disclosure, all technical and scientific terms used herein have the same meaning as commonly understood by a skilled expert in the art to which this invention pertains. In general, the nomenclature used in this specification is well known and commonly used in the art. Furthermore, in describing the embodiments of this disclosure, if it is determined that a detailed description of related known components or functions would hinder understanding of the embodiments of this disclosure, such detailed description is omitted. Additionally, while embodiments of this disclosure will be described below, the technical concept of this disclosure is not limited thereto and may be modified and implemented in various ways by those skilled in the art. FIG. 1 is a schematic diagram showing a method for preparing a low-viscosity UV-blocking cosmetic composition according to one embodiment. A method for preparing a low-viscosity sunscreen cosmetic composition according to one embodiment is a method for preparing a low-viscosity sunscreen cosmetic composition comprising a Sphingomonas fermentation extract, comprising the steps of: preparing Phase A by mixing purified water, a thickener, a moisturizer, a preservative, and a water-soluble sunscreen agent; preparing Phase B by mixing an oil-soluble sunscreen agent, a nonionic surfactant, and an organic solvent; performing an emulsification process by heating Phase A and Phase B to 70°C and then mixing them; and performing a degassing process after cooling the emulsified mixture to 25°C following the emulsification process, wherein the thickener comprises a Sphingomonas fermentation extract and the Sphingomonas fermentation extract has a content of 0.05 to 0.50 weight%. More specifically, purified water, a thickening agent, a humectant, a preservative, and a water-soluble sunscreen neutralizing agent are added and dispersed using an AGI mixer at approximately 250 to 450 rpm, and a neutralizing agent is added to prepare Phase A. A water-soluble sunscreen, a nonionic surfactant, and an organic solvent are added to prepare Phase B. Subsequently, phases A and B a