Composition capable of relieving and repairing hair dyeing damage as well as preparation method and application of composition

Abstract

The invention belongs to the technical field of daily chemical products, and discloses a composition for relieving and repairing hair dyeing damage and a preparation method and application thereof. The composition is prepared from the following components in percentage by mass: 10 to 50 percent of rape sterols, 10 to 70 percent of simmondsia chinensis seed oil and the balance of solvent. The composition provided by the invention has the effects of relieving injury, itching and stabbing pain of hair dyeing products to scalp, repairing hair damaged by hair dyeing, smoothing hair scales, endowing hair with good glossiness and enabling the hair to be healthy.

Description

Technical Field

[0001] This invention belongs to the field of daily chemical products technology, and specifically relates to a composition that soothes and repairs hair damage caused by dyeing, its preparation method and application. Background Technology

[0002] As people's pursuit of beauty continues to increase, hair dyeing has become a common way to style hair. However, the ingredients added to hair dyeing products, such as oxidants (hydrogen peroxide) and alkalis (ammonia, amines), often cause serious damage to the scalp and hair, leading to discomfort such as scalp itching and allergies. They may also cause dry, brittle, easily broken, and dull hair.

[0003] Therefore, developing a product that can effectively soothe irritation and repair damaged hair from dyeing is of great practical significance. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention provides a composition for soothing and repairing hair damage caused by dyeing, a method for preparing the composition, and its application. This composition soothes the scalp from the damage, itching, and stinging caused by hair dyeing products, while simultaneously repairing dyed hair, smoothing the hair cuticles, giving the hair strands a good shine, and promoting healthy hair.

[0005] In a first aspect, the present invention provides a composition comprising the following components in weight percentages: 10%–50% rapeseed sterols, 10%–70% jojoba seed oil, and the balance being solvent.

[0006] Specifically, the mass percentage of the rapeseed sterols can be any point value or any two points between 10% and 50%, such as 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, etc.

[0007] Specifically, the mass percentage of the jojoba seed oil can be any point value or any two points between 10% and 70%, such as 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, etc.

[0008] Specifically, the brassicasterols in the composition of the present invention have good stability and biocompatibility, can form a protective film on the hair surface, reduce the direct contact between hair dye products and the internal structure of hair, and can also provide certain nutritional support to the hair and enhance its resilience.

[0009] Specifically, the jojoba seed oil in the composition of the present invention has a chemical structure similar to human sebum, has excellent moisturizing properties, can penetrate deep into hair fibers, repair damaged cuticle, restore hair softness and shine, and contains rich vitamins and antioxidants, which help reduce the oxidative damage to hair caused by free radicals generated during the hair dyeing process and soothe inflammatory reactions of the scalp.

[0010] This invention utilizes the unique properties of rapeseed sterols and jojoba seed oil, as well as their synergistic effect, to effectively soothe the scalp irritation caused by hair dye products, making the ingredients in hair dye products safer for the human body. At the same time, it can repair damaged hair and make the dyed hair healthier.

[0011] In some embodiments of the present invention, the solvent includes at least one selected from cetyl alcohol, stearyl alcohol, cetearyl alcohol, behenyl alcohol, myristyl alcohol, lauryl alcohol, glycerin, propylene glycol, butylene glycol, polypropylene glycol, and polyethylene glycol.

[0012] A second aspect of the present invention provides a method for preparing the composition described in the first aspect of the present invention, comprising the following steps:

[0013] The rapeseed sterols, jojoba seed oil, and solvent are mixed and heated to obtain the composition.

[0014] In some embodiments of the present invention, the heating temperature is 70–85°C.

[0015] A third aspect of the invention provides the use of the composition described in the first aspect of the invention in the preparation of products for soothing hair dye irritation and / or repairing hair damaged by dyeing.

[0016] A fourth aspect of the present invention provides the use of the composition described in the first aspect of the present invention in the preparation of hair dye products.

[0017] In a fifth aspect, the present invention provides a hair dyeing product comprising a dye and a developer, wherein the dye comprises the composition described in the first aspect of the present invention.

[0018] In some embodiments of the present invention, the composition has a mass content of 0.01% to 15% in the dye. The mass content of the composition in the dye can be any point value or any two points within the range of 0.01% to 15%, such as 0.01%, 0.1%, 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, etc.

[0019] In some embodiments of the present invention, the composition has a mass content of 0.1% to 10% in the dye.

[0020] In some embodiments of the present invention, the dye further includes at least one of fatty alcohol, nonionic emulsifier, pH adjuster, antioxidant, hair dye, fragrance and water.

[0021] In some embodiments of the present invention, the fatty alcohol comprises one or more of the following components: lauryl alcohol, palmitol, myristol, cetyl alcohol, stearyl alcohol, cetearyl alcohol, behenyl alcohol, arachidyl alcohol or its isomers.

[0022] In some embodiments of the present invention, the nonionic emulsifier includes one or more of the following components: fatty alcohol polyethers, PEG-fatty alcohol polyethers, PPG-fatty alcohol polyethers, polyol fatty acid esters, and oleyl alcohol polyethers.

[0023] In some embodiments of the present invention, the pH adjuster in the dye includes one or more of the following components: monoethanolamine, sodium hydroxide, potassium hydroxide, ammonium hydroxide, sodium carbonate, sodium bicarbonate, and sodium oxalate.

[0024] In some embodiments of the present invention, the antioxidant includes one or more of the following components: ascorbic acid (vitamin C), vitamin E, sodium ascorbate, isoascorbic acid, sodium isoascorbate, tocopheryl acetate, sodium sulfite, sodium metabisulfite, and sodium dithionite.

[0025] In some embodiments of the present invention, the hair dye comprises two or more of the following components: toluene-2,5-diamine sulfate, resorcinol, 2,4-diaminophenoxyethanol hydrochloride, m-aminophenol, 4-chlororesorcinol, p-aminophenol, N,N-bis(2-hydroxyethyl)p-phenylenediamine sulfate, 2-amino-4-hydroxyethylaminoanisole sulfate, 2-methylresorcinol, 2-amino-3-hydroxypyridine, and 2-methyl-5-hydroxyethylaminophenol.

[0026] In some embodiments of the present invention, the fragrance is a daily-use fragrance.

[0027] In some embodiments of the present invention, the color developer includes at least one of an oxidant, a nonionic emulsifier, a fatty alcohol, a chelating agent, a pH adjuster, and water.

[0028] In some embodiments of the present invention, the oxidant includes one or more of the following components: hydrogen peroxide, urea peroxide, sodium percarbonate, and sodium persulfate.

[0029] In some embodiments of the present invention, the chelating agent includes one or more of the following components: sodium EDTA, hydroxyethyl diphosphate, tetrasodium glutamate diacetate, and trisodium ethylenediamine diacetate succinate.

[0030] In some embodiments of the present invention, the pH adjuster in the colorimetric agent includes one or more of the following components: hydroxyethyl diphosphate, phosphoric acid, lactic acid, sodium hydrogen phosphate, disodium hydrogen phosphate, and sodium stannate.

[0031] In some embodiments of the present invention, the mass ratio of the dye to the developer is 1:1. The dye and developer need to be stored separately, and they are mixed evenly before use for hair dyeing.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0033] (1) The formulation of the composition of the present invention contains rapeseed sterols and jojoba seed oil. Through such a unique formulation combination, the components produce a good synergistic effect, which can significantly soothe the irritation of hair dye to the scalp, repair the damage to hair caused by hair dye, smooth the hair cuticle, and keep the hair after dyeing still have good luster.

[0034] (2) The preparation method of the composition of the present invention is convenient and low in cost, and can be used in commercially available products; when applied to daily chemical products, especially hair dyeing products, it has a significant soothing and repairing effect on the scalp and damaged hair during the hair dyeing process. The composition of the present invention is applicable to all types of hair dyeing products. Detailed Implementation

[0035] To enable those skilled in the art to more clearly understand the technical solutions described in this invention, the following embodiments are provided for illustration. It should be noted that the following embodiments do not constitute a limitation on the scope of protection claimed by this invention.

[0036] Unless otherwise specified, the raw materials, reagents, or devices used in this invention can be obtained from conventional commercial sources or by existing known methods.

[0037] The rapeseed sterols in the embodiments of the present invention are selected from BASF; Jojoba seed oil is selected from Jojoba Oil, Vantage.

[0038] Examples 1-4

[0039] Examples 1 through 4 each provide a composition, differing only in the content of the components, as shown in Table 1; the units in Table 1 are mass percentages (%).

[0040] Table 1 Composition Formulation

[0041]

[0042]

[0043] The compositions of Examples 1-4 were prepared by the following steps:

[0044] Brassinosteroids, jojoba seed oil and cetearyl alcohol are mixed, heated to 80°C and stirred until homogeneous to obtain the composition.

[0045] Comparative Examples 1-7

[0046] Comparative Examples 1 to 7 each provide a composition, differing only in the content of the components, as shown in Table 2; the units in Table 2 are mass percentages (%).

[0047] Table 2 Composition Formulation

[0048]

[0049] The " / " in the table indicates that it does not contain.

[0050] The preparation methods of the compositions in Comparative Examples 1 to 7 are the same as those in Examples 1 to 4.

[0051] Application Example 1

[0052] A hair dye cream, comprising a dye and a developer;

[0053] The dye is composed of the following components by weight percentage: 7% of the composition of Example 1, 12% of cetearyl alcohol, 4% of stearyl alcohol polyether-21, 0.5% of PEG-100 stearate, 0.5% of glyceryl stearate, 0.5% of sodium sulfite, 0.5% of ascorbic acid, 1.8% of toluene-2,5-diamine sulfate, 0.6% of resorcinol, 0.15% of p-aminophenol, 0.15% of m-aminophenol, 9% of monoethanolamine, 0.5% of fragrance, and the balance being water;

[0054] The color developer consists of the following components by weight percentage: 1.3% cetyl alcohol, 3% stearyl alcohol, 0.5% glyceryl stearate, 1.6% stearyl alcohol polyether-20, 0.5% hydroxyethyl diphosphate, 0.3% disodium hydrogen phosphate, 9% hydrogen peroxide, and the balance being water.

[0055] The dye in this example is prepared using the following steps:

[0056] 1) Cetearyl alcohol, stearyl alcohol polyether-21, PEG-100 stearate, glyceryl stearate and the composition of Example 1 are added to an oil phase pot, stirred and heated to 80°C until completely dissolved, and this is the oil phase;

[0057] 2) Add water, sodium sulfite, and ascorbic acid to the aqueous phase pot, stir and heat to 80°C until completely dissolved, and use this as the aqueous phase;

[0058] 3) Pump the aqueous phase from step 2) into the reaction vessel, add toluene-2,5-diamine sulfate, resorcinol, p-aminophenol and m-aminophenol, stir until completely dissolved, then add the oil phase from step 1), homogenize for 15 minutes, then keep at 75°C and stir for 20 minutes, then start cooling.

[0059] 4) Cool to 45°C, add monoethanolamine and fragrance, stir evenly, continue stirring and cool to 25°C to obtain the dye.

[0060] The colorimetric reagent in this example is prepared using the following steps:

[0061] 1) Add cetyl alcohol, stearyl alcohol, glyceryl stearate and stearyl alcohol polyether-20 to the oil phase pot, stir and heat to 80°C until completely dissolved, and use as the oil phase;

[0062] 2) Add water to the main pot and heat to 80℃;

[0063] 3) Turn on the mixer in the main bowl, add the oil phase from step 1) into the main bowl, mix well, homogenize for 15 minutes, then keep at 75℃ and mix for 20 minutes before starting to cool.

[0064] 4) Cool to 50°C, add the pre-dissolved hydroxyethyl diphosphate and disodium hydrogen phosphate, continue stirring and cooling to 35°C, then add hydrogen peroxide, stir evenly, continue stirring and cooling to 25°C to obtain the color developer.

[0065] In this example, the hair dye cream needs to be stored separately from the dye and the developer. When needed, the dye and developer are mixed in a 1:1 mass ratio to obtain the hair dye cream in this example, and then the hair is dyed according to the usual hair dyeing steps.

[0066] Application Example 2

[0067] The only difference between Application Example 1 and Application Example 2 is that the content of the composition of Example 1 in the dye is adjusted from 7% to 5%, while the remaining components of the dye, the color developer, and the preparation method are the same as in Application Example 1.

[0068] Application Example 3

[0069] The only difference between Application Example 3 and Application Example 1 is that the content of the composition of Example 1 in the dye is replaced by 3% instead of 7%. The remaining components of the dye, the color developer, and the preparation method are the same as in Application Example 1.

[0070] Application Example 4

[0071] The only difference between Application Example 4 and Application Example 1 is that the content of the composition of Example 1 in the dye is replaced by 2% instead of 7%. The remaining components of the dye, the color developer, and the preparation method are the same as in Application Example 1.

[0072] Application Example 5

[0073] The only difference between Application Example 5 and Application Example 4 is that the composition of Example 1 in the dye is replaced in equal amounts with the composition of Example 2, while the remaining components of the dye, the color developer, and the preparation method are the same as in Application Example 4.

[0074] Application Example 6

[0075] The only difference between Application Example 6 and Application Example 4 is that the composition of Example 1 in the dye is replaced in equal amounts with the composition of Example 3, while the remaining components of the dye, the color developer, and the preparation method are the same as in Application Example 4.

[0076] Application Example 7

[0077] The only difference between Application Example 7 and Application Example 4 is that the composition of Example 1 in the dye is replaced in equal amounts with the composition of Example 4, while the remaining components of the dye, the color developer, and the preparation method are the same as in Application Example 4.

[0078] Comparative Application Example 1

[0079] The only difference from Application Example 4 is that, in Comparative Application Example 1, the composition of Example 1 in the dye is replaced in equal amounts with the composition of Comparative Example 1, while the remaining components of the dye, the color developer, and the preparation method are the same as in Application Example 4.

[0080] Comparative Application Example 2

[0081] The only difference between Comparative Application Example 2 and Application Example 4 is that the composition of Example 1 in the dye is replaced in equal amounts with the composition of Comparative Example 2, while the remaining components of the dye, the color developer, and the preparation method are the same as in Application Example 4.

[0082] Comparative Application Example 3

[0083] The only difference between Comparative Application Example 3 and Application Example 4 is that the composition of Example 1 in the dye is replaced in equal amounts with the composition of Comparative Example 3, while the remaining components of the dye, the color developer, and the preparation method are the same as in Application Example 4.

[0084] Comparative Application Example 4

[0085] The only difference between Comparative Application Example 4 and Application Example 5 is that the composition of Example 1 in the dye is replaced in equal amounts with the composition of Comparative Example 4, while the remaining components of the dye, the color developer, and the preparation method are the same as in Application Example 4.

[0086] Comparative Application Example 5

[0087] The only difference from Application Example 4 is that in Comparative Application Example 5, the composition of Example 1 in the dye is replaced in equal amounts with the composition of Comparative Example 5, while the remaining components of the dye, the color developer, and the preparation method are the same as in Application Example 4.

[0088] Comparative Application Example 6

[0089] The only difference from Application Example 4 is that in Comparative Application Example 6, the composition of Example 1 in the dye is replaced in equal amounts with the composition of Comparative Example 6, while the remaining components of the dye, the color developer, and the preparation method are the same as in Application Example 4.

[0090] Comparative Application Example 7

[0091] The only difference from Application Example 4 is that in Comparative Application Example 7, the composition of Example 1 in the dye is replaced in equal amounts with the composition of Comparative Example 7, while the remaining components of the dye, the color developer, and the preparation method are the same as in Application Example 4.

[0092] Comparative Application Example 8

[0093] The only difference from Application Example 4 is that in Comparative Application Example 8, the composition of Example 1 in the dye is replaced with an equal amount of water, while the remaining components of the dye, the color developer, and the preparation method are the same as in Application Example 4.

[0094] Product effectiveness test

[0095] The hair dye creams used in Application Examples 1 to 7 and Comparative Application Examples 1 to 8 were tested as samples as follows.

[0096] 1) Hair dye irritation test: 10 volunteers were selected for each sample group. The dye and developer in the hair dye cream were mixed at a mass ratio of 1:1 and then the hair was dyed. The dyeing process was left for 30 minutes, and the irritation was tested. The irritation level was divided into four levels: *no stinging sensation, **slight stinging sensation, ***obvious stinging sensation, and ****strong stinging sensation. The number of volunteers was recorded for each level. The test method was sensory evaluation.

[0097] 2) Gloss Test: Hair strands were dyed using various hair dye cream samples. A sample weight of 1.5 times the weight of the hair strand was evenly applied to the strand, kept at a constant temperature of 25℃ for 30 minutes, then washed off and dried. The gloss change rate ΔG was measured using a glossymeter (GL200). A higher gloss change rate indicates better gloss.

[0098] Calculation formula: Gloss change rate ΔG(%)=(G1-G0) / G0, where G0 is the gloss of the hair strand before using the sample; G1 is the gloss of the hair strand after using the sample.

[0099] 3) Electron microscopy cuticle test: Hair strands were dyed using various hair dye cream samples. A sample weight of 1.5 times the hair strand was evenly applied to the strand, kept at 25℃ for 30 minutes, then washed off and dried. The cuticles were observed using a scanning electron microscope (Hitachi TM4000), and the cuticle score change rate (T) was measured. A cuticle score change rate > 0 indicates a damage mitigation effect; a higher value indicates less cuticle damage, and a lower value indicates more severe cuticle damage.

[0100] Calculation formula: Hair cuticle score change rate T(%) = (T1-T0) / T0, where T0 is the average score of hair cuticle photos in the blank control group; T1 is the average score of hair cuticle photos in the sample group.

[0101] The blank control group consisted of hair strands dyed without the addition of the dye of the present invention, i.e., hair strands dyed with the hair dye cream of Comparative Application Example 8.

[0102] The test results are shown in Table 3.

[0103] Table 3 Test Results

[0104]

[0105]

[0106] " / " indicates that the test for this indicator is not performed.

[0107] As can be seen from the results in Table 3, compared with Comparative Application Example 8, the hair dye creams in Application Examples 1 to 7, due to containing the composition of the present invention, can significantly reduce the irritation to the skin during the hair dyeing process, the hair dyeing process is almost non-irritating, the luster of the dyed hair is significantly better, the luster ΔG>10, and the degree of damage to the hair cuticle is small (T>2).

[0108] Compared with the compositions in Application Examples 1 to 7, the lack of a certain component or the replacement of a certain component with another component with similar effects instead of the specific component combination of the present invention resulted in a significant reduction in effect, increased hair dyeing irritation, a hair shine ΔG < 8 after dyeing, a significantly weakened shine, a hair cuticle score change rate T < 1.85, and a significantly increased degree of hair damage. This indicates that there is a good synergistic effect between brassicasterols and jojoba seed oil in the composition of the present invention, thereby having a significant effect on protecting the scalp, soothing irritation, and repairing hair damaged by dyeing.

[0109] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A composition, characterized in that, The composition comprises the following components in weight percentages: 10%–50% rapeseed sterols, 10%–70% jojoba seed oil, and the balance being solvent.

2. The composition according to claim 1, characterized in that, The solvent includes at least one of cetyl alcohol, stearyl alcohol, cetearyl alcohol, behenyl alcohol, myristyl alcohol, lauryl alcohol, glycerin, propylene glycol, butylene glycol, polypropylene glycol, and polyethylene glycol.

3. A method for preparing the composition according to claim 1 or 2, characterized in that, Includes the following steps: The rapeseed sterols, jojoba seed oil, and solvent are mixed and heated to obtain the composition.

4. The use of the composition of claim 1 or 2 in the preparation of products for soothing hair dye irritation and / or repairing hair damaged by hair dyeing.

5. The use of the composition according to claim 1 or 2 in the preparation of hair dye products.

6. A hair dyeing product, characterized in that, The hair dye product includes a dye and a color developer, wherein the dye includes the composition according to claim 1 or 2.

7. The hair dyeing product according to claim 6, characterized in that, The composition has a mass content of 0.01% to 15% in the dye.

8. The hair dyeing product according to claim 7, characterized in that, The composition has a mass content of 0.1% to 10% in the dye.

9. The hair dyeing product according to claim 6, characterized in that, The dye also includes at least one of fatty alcohols, nonionic emulsifiers, pH adjusters, antioxidants, hair dyes, fragrances, and water.

10. The hair dyeing product according to claim 6, characterized in that, The colorimetric agent includes at least one of an oxidant, a nonionic emulsifier, a fatty alcohol, a chelating agent, a pH adjuster, and water.

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