Color protection composition as well as preparation method and application thereof

Abstract

The invention relates to the technical field of hair color protection, in particular to a color protection composition and a preparation method and application thereof. The color protection composition comprises the following components: sulfated glycosaminoglycan and plant basic protein. The color protection composition disclosed by the invention has the advantages of simple formula and better color protection effect.

Description

Technical Field

[0001] This invention relates to the field of hair color protection technology, specifically to a color-protecting composition, its preparation method, and its application. Background Technology

[0002] Hair dyeing is becoming increasingly popular across all age groups, with permanent and semi-permanent methods being the most common on the market. Permanent hair dyeing typically involves a dye precursor and an oxidizing agent. The dye precursor penetrates deep into the hair cortex and undergoes a chemical polymerization reaction with the oxidizing agent, forming large dye molecules that are trapped within the hair cellulose. These pigments are firmly bound to the hair fiber, thus permanently changing the hair color. However, these large molecules are not easily absorbed through the hair fiber and are easily washed away during washing. With repeated washing, noticeable color differences appear, failing to meet consumer demands. Semi-permanent hair dyeing primarily uses adsorption or penetration methods for coloring, and similarly suffers from fading during washing.

[0003] During the shampooing and conditioning process, the short-chain surfactants in regular shampoos and conditioners not only increase the solubility of dye in water, causing the dye to gradually transfer from the hair surface to the water, but also open the hair cuticles, leading to a significant loss of internal dye. Furthermore, damage to the hair surface and the resulting porous structure of the cuticles also accelerates dye loss. At this point, the bleaching effect of regular shampoos and conditioners is particularly noticeable. Sunlight is also one of the causes of fading after dyeing. Ultraviolet rays in sunlight damage hair fibers and cuticles, causing the cuticles to lift and increasing the porosity of the fiber surface, thus accelerating the shedding of dye from the hair.

[0004] Existing commercially available color-protecting hair conditioners still have certain flaws in their formulation structure. Their cationic emulsifiers are still the same as conventional conditioners, using C16 or C18 quaternary ammonium salts. These short-chain cationic surfactants have strong surface activity, increasing the solubility of dye molecules in water, allowing the dye to penetrate from the hair surface into the water. Simultaneously, short-chain cationic quaternary ammonium salts have no significant effect on hair repair; long-term use not only fails to protect the color but also continuously damages the hair cuticle, increasing frizz. Furthermore, existing commercially available color-protecting hair conditioners primarily prevent post-dyeing fading by simply adding ultraviolet absorbers. However, adding ultraviolet absorbers only reduces color fading caused by sunlight exposure and cannot effectively slow down the overall fading of hair color caused by other factors.

[0005] Chinese Patent Publication No. CN114848557A discloses a color-locking shampoo comprising the following ingredients: sodium lauryl ether sulfate, ammonium lauryl sulfate, cocamidopropyl betaine, dimethicone, cocamide MEA, acrylic acid and acrylic (ester) copolymers, polyquaternium-10, guar hydroxypropyltrimethylammonium chloride, zinc sulfate, cetearyl alcohol, hydrolyzed wheat protein, silk amino acids, allantoin, sodium citrate, citric acid, sodium chloride, Polygonum multiflorum extract, tea extract, olive fruit extract, Eclipta prostrata leaf extract, ginseng root extract, shea butter extract, fragrance, deionized water, and Kathon. This shampoo primarily utilizes the excellent adsorption properties of guar hydroxypropyltrimethylammonium chloride, which can further enhance the absorption efficiency of externally supplemented nutrients by animal hair. The polysaccharides in Polygonum multiflorum extract, tea extract, olive fruit extract, Eclipta prostrata leaf extract, and ginseng root extract are natural antioxidants, which are difficult to absorb by hair. Silk amino acids, however, are free amino acids with an average molecular weight of less than 100, making them easily absorbed. The free amino acids in silk combine with the polysaccharides in the aforementioned natural extracts to form polymers, promoting the absorption of antioxidant polysaccharides at the hair roots. Furthermore, the antioxidant polysaccharides, along with small-molecule amino acids and hydrolyzed wheat protein, adhere to the hair surface, slowing down the oxidation of dyes and effectively fixing and locking in color. However, the shampoo's formula is complex, and its color-protecting effect needs further improvement.

[0006] Chinese Patent Publication No. CN114886821A discloses a hair-nourishing essence comprising the following ingredients in parts by weight: water 15-24%, cetearyl alcohol 5-8%, antistatic agent 2-3%, ethylhexyl palmitate 3-5%, propylene glycol 4-6%, polydimethylsiloxane 4-6%, ethanol 5-7%, fragrance 0.3-0.8%, acrylate copolymer 2-5%, hydrolyzed wheat protein 2-4%, citric acid 0.1-0.4%, and shea butter extract. The serum contains 0.08-0.18g of the following ingredients: Polygonum multiflorum root extract (0.06-0.12g), olive fruit extract (0.06-0.2g), silk amino acids (0.08-0.26g), ginseng root extract (0.06-0.14g), Eclipta prostrata leaf extract (0.18-0.28g), black mulberry fruit extract (0.04-0.16g), Ganoderma lucidum stem extract (0.04-0.12g), niacinamide (0.18-0.3g), and preservatives (0.18-0.32g). This serum enhances hair resilience, improves split ends, strengthens hair roots, and enhances hair's anti-breakage and anti-hair loss effects through the synergistic effect of citric acid, ginseng root extract, and black mulberry fruit extract, effectively improving the hair's dry and wet combing performance. The addition of Eclipta prostrata leaf extract, niacinamide, and citric acid synergistically increases the adhesion of pigments in hair dyes to the hair cortex, achieving color protection and fixation. However, this serum also suffers from a complex formula and its color-protecting effect needs further improvement.

[0007] Therefore, it is essential to develop a color-protecting composition that can solve the above-mentioned technical problems, as well as its preparation method and application. Summary of the Invention

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a color-protecting composition with a simple formulation and good color-protecting effect, as well as its preparation method and application.

[0009] This invention is achieved through the following technical solutions: The first aspect of the present invention provides a color-protecting composition comprising the following components: sulfated glycosaminoglycans and plant basic proteins.

[0010] The "plant basic protein" mentioned in this invention refers to hydrolyzed plant protein rich in basic amino acids, including but not limited to lysine and arginine.

[0011] As one embodiment of the present invention, the color-protecting composition comprises, by weight, the following components: 0.05-5 parts of sulfated glycosaminoglycan and 0.05-5 parts of plant basic protein, preferably 0.05-2.5 parts of sulfated glycosaminoglycan and 0.1-5 parts of plant basic protein. In one embodiment of the present invention, the mass ratio of the sulfated glycosaminoglycan to the plant basic protein is 1:2-5.

[0012] In one embodiment of the present invention, the sulfated glycosaminoglycan includes at least one of chondroitin sulfate and dermatan sulfate.

[0013] In one embodiment of the present invention, the plant basic protein includes hydrolyzed soybean protein.

[0014] As one embodiment of the present invention, the color-protecting composition further includes proteins containing aromatic amino acids, such as hydrolyzed keratin, keratin, etc.

[0015] In one embodiment of the present invention, the amount of the protein containing aromatic amino acids is 0.05-5 parts by weight.

[0016] In one embodiment of the present invention, the aromatic amino acid includes at least one of tyrosine, phenylalanine and tryptophan.

[0017] As one embodiment of the present invention, the color-protecting composition further includes at least one of a thickener, an emulsifier, a conditioning agent, and a preservative.

[0018] In one embodiment of the present invention, the thickener includes cetearyl alcohol.

[0019] In one embodiment of the present invention, the emulsifier comprises cetearyl alcohol polyether-25.

[0020] In one embodiment of the present invention, the conditioning agent includes at least one of cetearyl chloride, cetearyltrimethylammonium chloride, and polyquaternium-10.

[0021] In one embodiment of the present invention, the preservative includes phenoxyethanol.

[0022] In one embodiment of the present invention, the amount of the thickener is 5-10 parts by weight.

[0023] In one embodiment of the present invention, the amount of the emulsifier is 1-3 parts by weight.

[0024] In one embodiment of the present invention, the amount of the conditioning agent is 2-4 parts by weight, for example, 0.5-1 part of cetearyl chloride, 1-2 parts of cetearyltrimethylammonium chloride, and 0.5-1 part of polyquaternium-10.

[0025] In one embodiment of the present invention, the amount of the preservative is 0.1-1 parts by weight.

[0026] In one embodiment of the present invention, the color-protecting composition further includes water, made up to 100 parts by weight.

[0027] In one embodiment of the present invention, the color-protecting composition further includes melanin, which is mainly used for hair dyeing.

[0028] In one embodiment of the present invention, the amount of melanin used is 0.05-5 parts by weight.

[0029] A second aspect of the present invention provides a method for preparing the above-mentioned color-protecting composition, wherein when the composition contains only sulfated glycosaminoglycans and plant basic proteins, or sulfated glycosaminoglycans, plant basic proteins, and proteins containing aromatic amino acids, the method comprises the following steps: The raw material components are mixed at a certain temperature, homogenized, and stirred evenly to obtain the final product.

[0030] In one embodiment of the present invention, the temperature is below 45°C.

[0031] In one embodiment of the present invention, the homogenization speed is 1000-2000 r / min.

[0032] In one embodiment of the present invention, the stirring speed is 10-30 r / min.

[0033] In one embodiment of the present invention, when the composition further contains a thickener, an emulsifier, a conditioning agent, and a preservative, the preparation method includes the following steps: (1) Add thickener and emulsifier to water, heat, homogenize, stir, and keep warm to obtain mixture A; (2) Cool mixture A, add conditioning agent, stir, and obtain mixture B; (3) Add preservative, sulfated glycosaminoglycan, plant basic protein and protein containing aromatic amino acids to mixture B, and stir until evenly dispersed.

[0034] In one embodiment of the present invention, when the composition further contains melanin, the preparation method includes the following steps: (1) Add thickener and emulsifier to water, heat, homogenize, stir, and keep warm to obtain mixture A; (2) Cool mixture A, add conditioning agent, stir, and obtain mixture B; (3) Cool down mixture B, add preservative, melanin, sulfated glycosaminoglycan, plant basic protein and protein containing aromatic amino acids to mixture B, and stir until evenly dispersed.

[0035] In one embodiment of the present invention, the temperature is raised to 80-85°C in step (1).

[0036] In one embodiment of the present invention, the homogenization speed in step (1) is 1000-1500 r / min, the stirring speed is 10-25 r / min, the stirring time is 10-15 min, and the heat preservation time is 10-15 min.

[0037] In one embodiment of the present invention, the temperature is reduced to 45-50°C in step (2).

[0038] In one embodiment of the present invention, the stirring speed in step (2) is 10-30 r / min and the stirring time is 10-15 min.

[0039] In one embodiment of the present invention, the temperature is reduced to 40-45°C in step (3).

[0040] In one embodiment of the present invention, the stirring speed in step (3) is 10-30 r / min and the stirring time is 10-15 min.

[0041] A third aspect of the present invention provides the application of the above-described color-protecting composition in the preparation of hair shampoo and conditioner products.

[0042] In one embodiment of the present invention, the hair is human hair.

[0043] In one embodiment of the present invention, the hair is dyed hair.

[0044] In one embodiment of the present invention, the hair care product is shampoo or conditioner.

[0045] The beneficial effects of this invention are: This invention uses a combination of sulfated glycosaminoglycans and plant basic proteins for color protection. Under specific ratios, the combination of the two can enhance the coloring of melanin and delay fading.

[0046] The present invention further adds proteins containing aromatic amino acids, which further improves the color-protecting effect of the composition. Detailed Implementation

[0047] The present invention will be further described below with reference to specific embodiments, and the advantages and features of the present invention will become clearer as a result. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. Those skilled in the art should understand that modifications or substitutions can be made to the details and form of the technical solutions of the present invention without departing from the spirit and scope of the present invention, but all such modifications and substitutions fall within the protection scope of the present invention.

[0048] In the following examples, chondroitin sulfate was purchased from Xi'an Tianguangyuan Biotechnology Co., Ltd.; dermatan sulfate was purchased from Xi'an Tianguangyuan Biotechnology Co., Ltd.; hydrolyzed soy protein was purchased from Shaanxi Xutai Biotechnology Co., Ltd.; and hydrolyzed keratin was purchased from Shaanxi Aite Biotechnology Co., Ltd.

[0049] Example 1 A color-protecting composition, the formulation of which is shown in Table 1 by weight parts.

[0050] Table 1. Formulation of color-protecting composition (parts by weight)

[0051] Preparation method: (1) Accurately weigh each component material in the formula; (2) Add water, cetearyl alcohol, and cetearyl alcohol polyether-25 to a beaker and heat to 85°C. Homogenize at 1000 r / min and stir at 10-25 r / min. After 10 min of uniform dispersion, keep warm for 10 min. (3) After cooling to 50°C, add cetrimonium chloride, cetearyltrimethylammonium chloride, and polyquaternium-10. Stir at 20 r / min for 10 min to disperse evenly. (4) After cooling to 45°C, add phenoxyethanol, melanin, sulfated glycosaminoglycans (chondroitin sulfate or dermatan sulfate), hydrolyzed soybean protein, and hydrolyzed keratin. Stir at 20 r / min for 15 min to disperse evenly and obtain the sample.

[0052] Test Example 1 Commercially available bleached hair with no significant differences in appearance or texture was randomly divided into 10 groups. Each group was immersed in the color-protecting composition solution of Example 1 for 60 minutes, rinsed once with tap water, and dried. The color value was then measured using a 3nh PS230 colorimeter. Afterward, each group was washed 10 times with the same shampoo, dried uniformly, and tested again. The color difference value ΔE was recorded and calculated, and the results are shown in Table 2 below. In Table 2, L represents brightness (a smaller value indicates a darker color), a represents red-green hue (a larger value indicates a more reddish hue), and b represents yellow-blue hue (a larger value indicates a more yellowish hue). ΔE represents the color difference; a smaller value indicates a smaller difference. ΔL represents the difference in L between washing with tap water once and washing with shampoo 10 times; Δa represents the difference in a between washing with tap water once and washing with shampoo 10 times; Δb represents the difference in b between washing with tap water once and washing with shampoo 10 times.

[0053] Table 2 Test Results

[0054] The above detailed description is a specific description of one of the feasible embodiments of the present invention. This embodiment is not intended to limit the patent scope of the present invention. All equivalent implementations or modifications that do not depart from the present invention should be included within the scope of the technical solution of the present invention.

Claims

1. A color-protecting composition, characterized in that, It includes the following components: sulfated glycosaminoglycans and plant basic proteins.

2. The color-protecting composition according to claim 1, characterized in that, Based on parts by weight, it includes the following components: 0.05-2.5 parts of sulfated glycosaminoglycans and 0.1-5 parts of plant basic protein.

3. The color-protecting composition according to claim 2, characterized in that, The mass ratio of the sulfated glycosaminoglycan to the plant basic protein is 1:2-5.

4. The color-protecting composition according to any one of claims 1-3, characterized in that, The sulfated glycosaminoglycans include at least one of chondroitin sulfate and dermatan sulfate.

5. The color-protecting composition according to any one of claims 1-3, characterized in that, The plant-based basic protein includes hydrolyzed soy protein.

6. The color-protecting composition according to any one of claims 1-3, characterized in that, The color-protecting composition also includes proteins containing aromatic amino acids.

7. The color-protecting composition according to claim 6, characterized in that, The aromatic amino acid includes at least one of tyrosine, phenylalanine, and tryptophan; the protein containing the aromatic amino acid includes at least one of keratin and hydrolyzed keratin; the amount of the protein containing the aromatic amino acid is 0.05-5 parts by weight.

8. The color-protecting composition according to any one of claims 1-3, characterized in that, The color-protecting composition also includes at least one of a thickener, emulsifier, conditioning agent, preservative, and water.

9. The color-protecting composition according to claim 8, characterized in that, The thickener includes cetearyl alcohol; the emulsifier includes cetearyl alcohol polyether-25; the conditioning agent includes at least one of cetearyl chloride, cetearyltrimethylammonium chloride and polyquaternium salt-10; and the preservative includes phenoxyethanol.

10. The color-protecting composition according to claim 8, characterized in that, The amount of the thickener is 5-10 parts by weight, the amount of the emulsifier is 1-3 parts, the amount of the conditioner is 2-4 parts, the amount of the preservative is 0.1-1 parts, and the amount of water is based on 100 parts by weight of the color-protecting composition.

11. The color-protecting composition according to any one of claims 1-3, characterized in that, The color-protecting composition also includes melanin.

12. The color-protecting composition according to claim 11, characterized in that, The amount of melanin used is 0.05-5 parts by weight.

13. A method for preparing the color-protecting composition according to any one of claims 1-12, characterized in that, Includes the following steps: The raw material components are mixed at a certain temperature, homogenized, and stirred evenly to obtain the final product.

14. The preparation method according to claim 13, characterized in that, The temperature is below 45°C, the homogenization speed is 1000-2000 r / min, and the stirring speed is 10-30 r / min.

15. The use of the color-protecting composition according to any one of claims 1-12 in the preparation of hair shampoo and conditioner products.

16. The application according to claim 15, characterized in that, The hair mentioned refers to human hair.

17. The application according to claim 15, characterized in that, The hair in question is dyed hair.

18. The application according to claim 15, characterized in that, The hair care products mentioned are shampoo or conditioner.

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