Natural plant hair dye and preparation method thereof
This plant-based hair dye, composed of catechu and myrrh, solves the problem of scalp irritation caused by existing hair dyes, achieving the effect of protecting and treating the scalp during the dyeing process, and providing stable dyeing results and color fastness.
Patent Information
- Application Number
- CN202510933608.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-08
- Publication Date
- 2025-11-25
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Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the cosmetic technology field, and in particular to a natural plant hair dye and a preparation method thereof. BACKGROUND
[0002] With the increase of the number of people dyeing hair and the frequency of dyeing hair in recent years, people are increasingly aware of the disadvantages of chemical hair dyes, but many people have already relied on hair dyeing, so plant hair dyes have been successively developed. Although many plant hair dyes can be more friendly to the human body and have the functions of dyeing hair, nourishing hair and protecting hair, etc., plant hair dyes also have some disadvantages, such as the need for metal salt mordant to maintain the dyeing durability, which can also irritate the scalp, and the preventive, health care and treatment effects of many plant medicinal materials in hair dyes are not exerted, so it is necessary to develop the application of medicinal materials in hair dyes, which can solve the problem of the scalp while maintaining the dyeing effect and durability.
[0003] Catechu is the peeled branch, dried decoction paste of Acacia catechu (L.f.) Wild of the Leguminosae family. Function and indication: promoting blood circulation to stop pain, stopping bleeding and promoting tissue regeneration. It is used for injury pain, external injury bleeding, sore, eczema, dermatitis, lung heat cough. (Chinese Pharmacopoeia (2020 edition)) Myrrh is the dried resin of Commiphora myrra Engl. and Commiphora molmol Engl. of the Burseraceae family. Function and indication: removing blood stasis to relieve pain, reducing swelling and promoting tissue regeneration. It is used for chest pain, stomach pain, dysmenorrhea, postpartum blood stasis, abdominal mass pain, rheumatic pain, contusion and injury, abscess and sore. (Chinese Pharmacopoeia (2020 edition))
[0004] Currently, there is no report on the use of catechu and myrrh for hair dyeing. SUMMARY
[0005] The purpose of the present application is to provide a natural plant hair dye and a preparation method thereof to solve the problems in the background art.
[0006] To achieve the above purpose, the present application provides the following technical scheme: 1. A plant hair dye, comprising I agent and II agent, the I agent comprising catechu; The II agent comprises myrrh.
[0007] In further embodiments, the I agent further comprises: a base agent, a reducing agent, a penetrant, a thickening agent, deionized water; the base agent is one or a combination of sodium hydroxide, potassium hydroxide, sodium carbonate, sodium bicarbonate, the reducing agent is one or a combination of sodium thiosulfate, sodium cysteine, mercaptoacetic acid, the penetrant is one or a combination of vegetable oil, camellia seed oil, grape seed oil, jojoba seed oil, the thickening agent is one or a combination of methyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose.
[0008] In further embodiments, the I agent further comprises: a base agent, a reducing agent, a penetrant, a thickening agent, deionized water; the base agent is one or a combination of sodium hydroxide, potassium hydroxide, sodium carbonate, sodium bicarbonate, the reducing agent is one or a combination of sodium thiosulfate, sodium cysteine, mercaptoacetic acid, the penetrant is one or a combination of vegetable oil, camellia seed oil, grape seed oil, jojoba seed oil, the thickening agent is one or a combination of methyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose. The II agent further comprises: guggul 75-85%, stearic acid monoglyceride 2-4%, ascorbic acid monoglyceride 3-5%, behenyl trimethyl ammonium chloride 2-4%, sodium hyaluronate 0.8-1%, essence 0.01-0.05%, and deionized water.
[0009] In further embodiments, the II agent further comprises ferrous salt, and the ferrous salt is one or a combination of ferrous chloride and ferrous sulfate.
[0010] In further embodiments, the ferrous salt in the II agent accounts for 0.05-1% by weight.
[0011] The preparation method of the plant hair dye, the preparation of the I agent, the ratio of catechu to deionized water is 1:6-1:8, decocting until all is dissolved, adding a reducing agent, a base agent, and a penetrant after cooling, stirring and dissolving, adjusting the PH to 7-9 with the base agent, adding a thickening agent and essence, and adding the rest of deionized water. The preparation of the II agent, the ratio of guggul to deionized water is 1:6-1:8, soaking for 120 minutes, grinding, decocting for 90 minutes, reducing the temperature to 80-85oC, adding stearic acid monoglyceride, ascorbic acid palmitate, and behenyl trimethyl ammonium chloride, continuing to heat for 15-20 minutes, continuously stirring, cooling to about 40oC, adding sodium hyaluronate, and adding essence and stirring. The preparation of the II agent, the ratio of guggul to deionized water is 1:6-1:8, soaking for 120 minutes, grinding, decocting for 90 minutes, reducing the temperature to 80-85oC, adding stearic acid monoglyceride, ascorbic acid palmitate, and behenyl trimethyl ammonium chloride, continuing to heat for 15-20 minutes, continuously stirring, cooling to about 40oC, adding sodium hyaluronate, and adding essence and stirring.
[0012] The preparation of the II agent, the ratio of guggul to deionized water is 1:6-1:8, soaking for 120 minutes, grinding, decocting for 90 minutes, reducing the temperature to 80-85oC, adding stearic acid monoglyceride, ascorbic acid palmitate, and behenyl trimethyl ammonium chloride, continuing to heat for 15-20 minutes, continuously stirring, cooling to about 40oC, adding sodium hyaluronate, and adding essence and stirring.
[0013] Compared with the prior art, the present application has the following advantages: The present application has the effect of alleviating and treating the symptoms of head dermatitis, including hair dye contact dermatitis and seborrheic dermatitis. For those who have head dermatitis but are afraid that hair dyeing will further aggravate the inflammation, the present hair dyeing agent can be used to protect the scalp and treat inflammation while dyeing the hair. DETAILED DESCRIPTION
[0014] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0015] Example 1: Preparation of I agent according to the formulation in Table 1: Preparation method of I agent: Gallnut and deionized water are mixed at a ratio of 1:6-1:8, and decocted until completely dissolved, Then, reducing agent, alkali agent and penetrating agent are added, and stirred and dissolved. The PH is adjusted to 7 with the alkali agent. Thickening agent and essence are added, and the rest is deionized water. Preparation of II agent according to the formulation in Table 2: Preparation method of II agent: Myrrh and deionized water are mixed at a ratio of 1:6-1:8, and soaked for 120 min before being finely ground. Decoction is performed for 90 min, and the temperature is reduced to 80-85oC. Stearic acid monoglyceride, ascorbic acid palmitate and behenyl trimethyl ammonium chloride are added, and heating is continued for 15-20 min with constant stirring. The mixture is cooled to about 40oC, and sodium hyaluronate and essence are added, and stirred to obtain the product.
[0016] The use method of the present embodiment is as follows. I agent is applied to the hair, wrapped with plastic wrap, and kept at 50oC for 40-45 min. Then, the excess I agent is cleaned, and II agent is applied to the hair, wrapped with plastic wrap, and kept at 50oC for 20-25 min. The hair is washed with warm water.
[0017] Example 2: The formulation components (see Tables 1 and 2), preparation method and use method are basically the same as those in Example 1, except that the PH of I agent is adjusted to 9 in the preparation method of Example 2.
[0018] Example 3: The formula ingredients (see Table 1 Table 2), the preparation method, the use method is basically same with example 1. The difference: the formula ingredients of II agent of example 3 add 0.5% ferrous sulfate, when preparing, add essence, then add ferrous sulfate, stir to obtain.
[0019] Example 4: The formula ingredients (see Table 1 Table 2), the preparation method, the use method is basically same with example 1. The difference: the formula ingredients of II agent of example 3 add 1% ferrous sulfate, when preparing, add essence, then add ferrous sulfate, stir to obtain.
[0020] Example 1, example 2, example 3, example 4 are used to determine the dyeing effect of the plant hair dye, mainly characterized by color and tone. The experiment uses Melenine standard color card for hair dyeing effect comparison, its tone is divided into yellow and red, and its color is divided into 20 degrees according to yellow and red, and the smaller the number, the closer to black. After comparison, the tone of the hair dye belongs to red, and the color decreases with the increase of PH and the increase of ferrous salt concentration. The hair dye is fashionable and elegant, and the color is stable, which avoids the old and unreal feeling of pure black. The specific results are shown in Table 3.
[0021] Table 3 dyeing effect Example 5: The formula ingredients (see Table 1 Table 2), the preparation method, the use method is basically same with example 1. The difference: the formula ingredients of II agent of example 4 add 0.5% ferrous sulfate, when preparing, add essence, then add ferrous sulfate, stir to obtain.
[0022] Example 5 is used to determine the color fastness of the plant hair dye, and the color change is observed according to the number of washing times. In example 5, the mass ratio of myrrh and catechu in the formula is 75%, and the color is compared by using Melenine standard color card. After washing 10 times, the color does not change. The color fastness can reach the effect of semi-permanent hair dye when using the minimum formula of catechu and myrrh.
[0023] Mordant can enhance color fastness, catechu contains tannin, and myrrh contains metal copper. Both of them are natural pigments and natural mordants, and the combination of the two is a complex mordant, which can achieve the color fastness effect of single metal mordant (such as ferrous salt).
[0024] Example 6: The formula ingredients (see Table 1 Table 2), the preparation method, the use method is basically same with example 1. The difference: the formula ingredients of II agent of example 6 do not add catechu, and the formula ingredients of II agent do not add myrrh.
[0025] Example 7: The formula ingredients (see Table 1 Table 2), the preparation method, the use method is basically same with example 1. The difference: the formula ingredients of II agent of example 8 add 0.5% ferrous sulfate, when preparing, add essence, then add ferrous sulfate, stir to obtain.
[0026] The hair dye has the effect of relieving and treating the symptoms of head dermatitis, including hair dye contact dermatitis and seborrheic dermatitis. For people who have head dermatitis but are afraid that dyeing hair will further aggravate the inflammation, the hair dye can be used to protect the scalp and treat the inflammation while dyeing hair.
[0027] Experimental method: Two kinds of self and intergroup control design were adopted, and according to the random and double-blind principle, the subjects were divided into a control group, a hair dyeing group 1 and a hair dyeing group 2 according to the symptoms, age and gender of the subjects. The subjects dyed their hair once according to the use method.
[0028] Observation index: The conditions of scalp itching, erythema, papules, exudation and dandruff before and after dyeing hair were recorded, and each index was scored according to the symptoms (0 = no, 1 = mild, 2 = moderate, 3 = severe), and the sum of the scores of each index was the symptom score of the subject.
[0029] Evaluation criteria: effective for score reduction ≥ 30%, ineffective for score reduction < 30% Example 5 and example 7 were used to test the treatment effect of the hair dye on head dermatitis, and example 6 was a control, and the results are shown in table 4.
[0030] Table 4 Comparison of relieving and treating dermatitis symptoms The two hair dyeing groups improved the symptoms of scalp itching, erythema, papules, exudation and dandruff, and the p value of the comparison between the hair dyeing group 1 and the control group and the comparison between the hair dyeing group 2 and the control group was < 0.01, which was extremely significant, but the hair dyeing group 1 was better than the hair dyeing group 2.
[0031] The Chinese herbal medicines catechu and myrrh contained in the hair dye have the effect of relieving and treating the symptoms of dermatitis for people who often use chemical hair dyes to cause head contact dermatitis and people who have head seborrheic dermatitis, and using the hair dye can avoid the damage of chemical hair dyes to the scalp while protecting the damaged scalp and reducing the inflammation symptoms.
[0032] In summary, the plant hair dye of the present application contains catechu and myrrh, which are not only natural plant pigments but also complex mediators, and can obtain ideal dyeing effect and color fastness, and as Chinese herbal medicines, catechu and myrrh have remarkable effect on relieving and treating the symptoms of head dermatitis and protecting the damaged scalp, and are especially suitable for people who have scalp dermatitis and need to dye hair frequently.
[0033] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A plant hair dye comprising a first agent and a second agent, wherein the first agent comprises catechu; and the second agent comprises myrrh. The first agent further comprises an alkali agent, a reducing agent, a penetrating agent, a thickening agent, and deionized water; the alkali agent is one or a combination of sodium hydroxide, potassium hydroxide, sodium carbonate, and sodium bicarbonate; the reducing agent is one or a combination of sodium thiosulfate, sodium cysteine, and mercaptoacetic acid; the penetrating agent is one of vegetable oil, camellia seed oil, grape seed oil, and jojoba seed oil; and the thickening agent is one or a combination of methyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, and hydroxypropyl methyl cellulose. The first agent comprises catechu 75-85%, the reducing agent 5-11%, the alkali agent 3-5%, the thickening agent 2.5-5%, the penetrating agent 3-5%, the fragrance 0.01-0.05%, and the rest is deionized water.
2. The plant hair dye according to claim 1, wherein The second agent comprises myrrh 75-85%, glyceryl monostearate 2-4%, ascorbyl palmitate 3-5%, behenyltrimethylammonium chloride 2-4%, sodium hyaluronate 0.8-1%, the fragrance 0.01-0.05%, and the rest is deionized water.
3. The plant hair dye according to claim 2, wherein The second agent further comprises a ferrous salt, which is one or a combination of ferrous chloride and ferrous sulfate. The ferrous salt in the second agent accounts for 0.05-1% by weight.
4. The plant hair dye of claim 1, wherein The first agent is prepared by mixing catechu and deionized water at a ratio of 1:6-1:8, boiling until all are dissolved, adding the reducing agent, the alkali agent, and the penetrating agent, stirring to dissolve, adjusting the pH to 7-9 with the alkali agent, adding the thickening agent and the fragrance, and adding the rest of the deionized water.
5. The plant hair dye according to claim 4, wherein The second agent is prepared by mixing myrrh and deionized water at a ratio of 1:6-1:8, soaking for 120 minutes, grinding, boiling for 90 minutes, reducing the temperature to 80-85°C, adding glyceryl monostearate, ascorbyl palmitate, and behenyltrimethylammonium chloride, continuing to heat for 15-20 minutes, stirring constantly, cooling to about 40°C, adding sodium hyaluronate, and adding the fragrance.
6. A process for the preparation of a plant hair dye as claimed in any one of claims 1 to 5, characterised in that, 7. The method for preparing the plant hair dye according to claim 6, wherein the second agent is prepared by mixing myrrh and deionized water at a ratio of 1:6-1:8, soaking for 120 minutes, grinding, boiling for 90 minutes, reducing the temperature to 80-85°C, adding glyceryl monostearate, ascorbyl palmitate, and behenyltrimethylammonium chloride, continuing to heat for 15-20 minutes, stirring constantly, cooling to about 40°C, adding sodium hyaluronate, adding the ferrous salt, and adding the fragrance.