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CN-122005364-A - Cosmetic film-forming composition and application thereof in make-up product

CN122005364ACN 122005364 ACN122005364 ACN 122005364ACN-122005364-A

Abstract

The invention belongs to the technical field of cosmetics, and particularly relates to a cosmetic film-forming composition and application thereof in a make-up product. In the invention, VP/VA copolymer, polyester-5 and polyurethane-10 are used as film forming compositions, a continuous network is formed firstly by means of the rigid framework of the VP/VA copolymer, the polyester-5 is used as a long-chain flexible hydrophobic polymer, the molecular chain of the polyester-5 is deeply permeated and wound in the VP/VA network to form an interpenetrating structure, and the base film layer is endowed with excellent adhesive force, flexibility and preliminary hydrophobicity, in addition, the integral elasticity, resilience recovery capability and fatigue resistance of the film can be further improved by the introduction of the polyurethane-10, so that the film layer is not easy to generate permanent cracks under the dynamic facial expression, external friction impact can be buffered, and finally, the make-up product shows extremely high environmental resistance, has remarkable effects in the aspects of water resistance, sweat resistance, friction resistance, physical impact resistance and the like, and is more suitable for extreme scenes such as high-strength movement, heavy rain and the like.

Inventors

  • LI YANG

Assignees

  • 广州优品生物科技有限公司

Dates

Publication Date
20260512
Application Date
20260317

Claims (10)

  1. 1. A cosmetic film-forming composition is characterized by comprising (by weight ratio) polyester-5, PV/PA copolymer and polyurethane-10, wherein the weight ratio of the polyester-5 to the PV/PA copolymer to the polyurethane-10 is (6-20): 4-10): 4-15.
  2. 2. The cosmetic film-forming composition according to claim 1, wherein the weight ratio of polyester-5:PV/PA copolymer to polyurethane-10 is (12-15): 6-8): 4-10.
  3. 3. The cosmetic film-forming composition according to claim 1, wherein the weight ratio of polyester-5:pv/PA copolymer to polyurethane-10 is 12-15:8:5.
  4. 4. A make-up product comprising the cosmetic film-forming composition of any one of claims 1 to 3, wherein the cosmetic film-forming composition comprises 15% to 35% by weight of the make-up product.
  5. 5. The make-up product of claim 4 further comprising any one or a combination of small molecule sodium hyaluronate, silica, cosmetically acceptable solvents, moisturizers, preservatives, pH adjusters.
  6. 6. The make-up product of claim 5, wherein the molecular weight of the small molecule sodium hyaluronate is 5-50 kDa.
  7. 7. The make-up product of claim 5, wherein the molecular weight of the small molecular sodium hyaluronate is 8-10 kDa and the small molecular sodium hyaluronate is 1% -8% by weight of the cosmetic film-forming composition.
  8. 8. The make-up product according to any one of claims 4 to 7, wherein the make-up product comprises any one of a make-up spray, a make-up emulsion, a pre-make-up emulsion, and a foundation solution.
  9. 9. The make-up spray is characterized by comprising the following components in parts by weight: 8-15 parts of polyester, 6-8 parts of PV/PA copolymer, 5-10 parts of polyurethane, 2-3 parts of 8-10 kDa sodium hyaluronate, 18-20 parts of organic solvent and 0.5 part of preservative, adjusting the pH of the make-up spray to 6.0+/-0.2 by taking lactic acid as a pH regulator, and adding deionized water to 100 parts; the organic solvent is any one of ethanol or butanediol, and the preservative is any one of phenoxyethanol and ethylhexyl glycerol.
  10. 10. The make-up spray containing silica is characterized by comprising the make-up spray of claim 9 and silica, wherein the silica is 1-2 parts by weight.

Description

Cosmetic film-forming composition and application thereof in make-up product Technical Field The invention belongs to the technical field of cosmetics, and particularly relates to a cosmetic film-forming composition and application thereof in a make-up product. Background In recent years, the requirements of consumers on the durability of the makeup are gradually improved, and the limitations of the traditional makeup product are increasingly highlighted especially under severe environments such as sports, summer, outdoor activities and the like, which are easy to sweat and have high temperature and high humidity, for example, when powder is scattered and sweat is easy to agglomerate, the film forming strength of common makeup spraying is insufficient to resist continuous sweat washing or rain splashing, and the makeup product has a fundamental contradiction that the strength (makeup holding force) of the film forming agent in the product and the flexibility/comfort degree of the film layer are often mutually balanced for a long time. The main current solutions and limitations are that in a single film former system, a high-strength acrylic polymer film (CN 117815152A) is hard and brittle, the skin feel is tight, the skin feel is soft, the makeup holding force is insufficient, a simple binary compound system, such as a mixed film former with low content of mixed polyurethane-35 and vinyl pyrrolidone/vinyl acetate copolymer in CN109260028A, has limited effect, and in addition, although adding polyester-5 and VP/VA into the film former is mentioned in patent CN114432182A, the film former is only one of a plurality of options, the film is characterized by compounding with an oil control factor, the synergistic relationship and unique mechanism between any specific polymer combination are not deeply disclosed and verified, and in addition, the ultra-thin film (CN 118490559B) based on nanocellulose has insufficient strength for coping with severe friction and sweat scouring. Therefore, there is a need in the market for an innovative film forming system capable of breaking the above-mentioned "performance seesaw" to construct an ideal protective film having high strength, high ductility, high elastic restoring force and high hydrophobicity, so as to keep the dressing intact in extreme environments, so that multiple challenges such as sweat, rainwater, friction and the like can be handled from the container, meanwhile, the defects of heavy and stuffy feeling of the traditional waterproof make-up product can be abandoned, the user has no burden feeling, and perfect unification of the protective force and comfort feeling is realized. Disclosure of Invention In order to solve the technical problems, the invention provides a cosmetic film-forming composition and application thereof in a make-up product. The technical scheme of the invention is as follows: according to a first aspect of the invention, a cosmetic film-forming composition is provided, the cosmetic film-forming composition consists of polyester-5, PV/PA copolymer and polyurethane-10 (PU-10), and the weight ratio of the polyester-5 to the PV/PA copolymer to the polyurethane-10 is (6-20): 4-10): 4-15. Preferably, in the cosmetic film-forming composition, the weight ratio of the polyester-5:PV/PA copolymer to the polyurethane-10 is (12-15): (6-8): (4-10). As a further preferred aspect, the weight ratio of polyester-5:PV/PA copolymer to polyurethane-10 in the cosmetic film-forming composition is 12-15:8:5. Preferably, the polyurethane-10 is an aqueous dispersion with a low Tg (< 25 ℃) and good film forming and elasticity are fully developed at room temperature. In the film-forming composition provided by the invention, polyester-5 is a flexible hydrophobic phase, VP/VA copolymer is a rigid hydrophilic framework, polyurethane-10 is an elastomer, and the three can spontaneously form a unique interpenetrating/nested network structure in the film-forming process. The VP/VA forms a continuous and rigid three-dimensional network skeleton for providing instant adhesive force and migration resistance by virtue of the strong polarity and rapid film forming property, the long-chain flexible hydrophobic structure of the polyester-5 is permeated and wound in the skeleton to serve as a flexible filler, so that the ductility, skin adhesion and hydrophobicity of the film are greatly improved, dry touch feeling is given, and the micro-phase separation structure of the soft and hard segments of the polyurethane-10 enables the molecular chain of the micro-phase separation structure to be entangled with the VP/VA and the network depth of the polyester-5, such as a molecular spring and a dynamic crosslinking point, so that the whole composite film is provided with excellent elastic restoring force, impact resistance and dynamic cracking resistance. The rigid-flexible-elastic three-in-one composite structure ensures that the finally formed film has high strength and high transpar