Search

CN-121971300-A - Colloidal sulfur and preparation method and application thereof

CN121971300ACN 121971300 ACN121971300 ACN 121971300ACN-121971300-A

Abstract

The invention belongs to the field of daily chemicals, and discloses a preparation method of colloidal sulfur, which specifically comprises the following steps: mixing the sulfur-containing dispersion with acacia and water-soluble oat powder, grinding to obtain ground product, and lyophilizing or drying under reduced pressure. According to the method, the Arabic gum and the water-soluble oat flour are used as the composite coating materials for coating, and the colloidal sulfur product with the D50 particle size of 4.5-10 mu m can be obtained by adopting a drying process through grinding. Meanwhile, the invention also discloses application of the colloidal sulfur.

Inventors

  • ZHONG YURONG
  • Xu Yongtou
  • ZHONG YINGYING
  • YANG XUAN
  • YAN ERPING
  • PAN MEIHONG

Assignees

  • 广东袋鼠妈妈集团有限公司

Dates

Publication Date
20260505
Application Date
20251213

Claims (10)

  1. 1. A preparation method of colloidal sulfur is characterized by comprising the steps of mixing a sulfur-containing dispersion with Arabic gum and water-soluble oat flour, grinding to obtain a ground product, and freeze-drying or drying the ground product under reduced pressure.
  2. 2. The preparation method according to claim 1, wherein the sulfur-containing dispersion is obtained by mixing and grinding sulfur powder and water in a mass-to-volume ratio of 1g/20 ml; The particle size of the ground sulfur powder in the sulfur-containing dispersion is less than 1 mu m.
  3. 3. The preparation method of the sulfur-containing dispersion according to claim 2, wherein the grinding process in the preparation process of the sulfur-containing dispersion is that sulfur powder and water are mixed and then added into a sand mill for grinding, the rotating speed of the sand mill is 1200r/min, the material flow rate in the sand mill is 5L/min, and the treatment time is 10-30 min.
  4. 4. The preparation method of claim 1, wherein the mass ratio of the sulfur powder to the acacia gum to the water-soluble oat powder is 60-80:20-40:0.5-2.
  5. 5. The method of claim 1, wherein the water-soluble oat flour has a particle size of 80 mesh; The grinding process for preparing the grinding product comprises the steps of mixing the sulfur-containing dispersion with Arabic gum and water-soluble oat powder, adding the mixture into a sand mill for grinding, wherein the rotating speed of the sand mill is 1200r/min, the material flow rate in the sand mill is 5L/min, and the treatment time is 10-30 min.
  6. 6. The method according to claim 1, wherein the freeze-drying process comprises the steps of freeze-drying the ground product in a freeze-dryer; the decompression drying operation is that decompression drying is carried out for 1-3 hours under the pressure of-0.1 MPa and the temperature of 35+/-5 ℃.
  7. 7. Colloidal sulfur prepared by the process of any one of claims 1 to 6.
  8. 8. Use of colloidal sulfur according to claim 7 for the preparation of cosmetics.
  9. 9. A cosmetic comprising the colloidal sulfur according to claim 8.
  10. 10. The cosmetic product according to claim 9, characterized in that it is a leave-on cosmetic product or a rinse-off cosmetic product; the dosage of the colloidal sulfur in the resident cosmetics is 0.1-5wt%; The dosage of the colloidal sulfur in the leaching cosmetics is 0.1-5wt%.

Description

Colloidal sulfur and preparation method and application thereof Technical Field The invention relates to the field of daily chemicals, in particular to colloidal sulfur and a preparation method and application thereof. Background The main effects of colloidal sulfur on skin are as follows: 1. oil control and acne removal, namely sulfur-containing components, sebum secretion inhibition, pore dredging and acne improvement. 2. Anti-inflammatory and antibacterial, and can be used for the adjuvant treatment of rosacea and seborrheic dermatitis. 3. Moisturizing and repairing, namely improving dry and water-deficient skin and repairing damaged skin tissues. 4. Antioxidant, accelerating metabolism of skin and promoting recovery of skin. In the cosmetic field, more and more cosmetics, in particular cosmeceutical products, are beginning to use colloidal sulfur extensively. The existing colloidal sulfur is coated by gum arabic, for example, the publication number is CN 120458927A, and the subject is a double-coated colloidal sulfur, a preparation method and a patent application applied by the application, wherein the double-coated colloidal sulfur is coated by gum arabic firstly and then by lipoic acid by a double coating technology. The purpose is to improve the stability of the colloidal sulfur. Colloidal sulfur is coated with gum arabic, but the irritation of sulfur still exists. The scheme aims at the existing colloidal sulfur raw material, and the performance direction of the modification is that how to reduce the irritation of the existing colloidal sulfur and how to further improve the effects of controlling oil, removing acne and removing dandruff and controlling oil of the colloidal sulfur product. Disclosure of Invention The invention aims to provide a preparation method of colloidal sulfur, which adopts Arabic gum and water-soluble oat flour as composite coating materials for coating, and can obtain a colloidal sulfur product with the D50 particle size of 4.5-10 mu m by adopting a drying process after grinding. Meanwhile, the invention also discloses application of the colloidal sulfur. In order to achieve the above purpose, the present invention provides the following technical solutions: A process for preparing colloidal sulfur includes such steps as mixing the sulfur-contained dispersoid with gum arabic and water-soluble oat powder, grinding to obtain ground product, freeze-drying or vacuum drying. The present invention adds the use of water-soluble oat flour based on conventional acacia, and in particular, finely grinds and screens whole oat kernels, including bran, to retain a major portion of the natural active ingredients of oats, such as anti-irritant and soothing oat anthracene amide, skin moisturizing and repairing oat beta-glucan, anti-oxidant and anti-aging flavonoids and oat polypeptides, and efficacy lipid ingredients such as vitamin E/lecithin, by optimizing the colloidal oat related parameters in accordance with United states Pharmacopeia 41. Especially, by combining high-content macromolecular beta-glucan in oat flour, NF- κB (nuclear factor κB) is inhibited to act on 1L-6 and 1L-8 paths, so that the effects of anti-inflammatory, irritation reduction and moisturizing and repairing are synergistically exerted. When the acacia and the water-soluble oat kernels are used as main coating materials to coat the sulfur powder, the irritation is obviously reduced, the structural stability is enhanced, the better slow-release effect is achieved, and the effects of controlling oil and removing acnes can be achieved. In the preparation method, the sulfur-containing dispersion is prepared by mixing and grinding sulfur powder and water according to a mass-volume ratio of 1g/20 ml; The particle size of the ground sulfur powder in the sulfur-containing dispersion is less than 1 mu m. In the preparation method, the grinding process in the preparation process of the sulfur-containing dispersion comprises the steps of mixing sulfur powder and water, adding the mixture into a sand mill for grinding, wherein the rotating speed of the sand mill is 1200r/min, the material flow rate in the sand mill is 5L/min, and the treatment time is 10-30 min. In the preparation method, the mass ratio of the sulfur powder to the Arabic gum to the water-soluble oat powder is 60-80:20-40:0.5-2. In the preparation method, the particle size of the water-soluble oat flour is 80 meshes; The grinding process for preparing the grinding product comprises the steps of mixing the sulfur-containing dispersion with Arabic gum and water-soluble oat powder, adding the mixture into a sand mill for grinding, wherein the rotating speed of the sand mill is 1200r/min, the material flow rate in the sand mill is 5L/min, and the treatment time is 10-30 min. In the preparation method, the freeze-drying process comprises the steps of placing the ground product into a freeze dryer for freeze-drying operation; the decompression drying operation is that d