Persistent hair dye based on plant extract and preparation method thereof
By using a variety of plant extracts and appropriate formula design, the prepared permanent hair dye solves the problems of poor coloring effect and poor durability, achieves a healthy and long-lasting hair dyeing effect, and meets consumer needs.
Patent Information
- Application Number
- CN202510933627.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-08
- Publication Date
- 2025-10-17
AI Technical Summary
Existing plant-based hair dyes have problems with poor coloring effect and poor durability, and contain a large amount of chemical synthetic pigments that cause damage to the scalp and hair.
A permanent hair dye based on plant extracts is prepared by using a variety of plant extracts as the main pigment source, combined with surfactants, penetration enhancers, stabilizers and hair care ingredients. Through reasonable matching and adding penetration enhancers, the hair dye can better penetrate into the hair, and hair care ingredients are added to nourish and repair the hair.
It achieves good coloring effect and durability, reduces damage to the scalp and hair, meets consumers' demand for natural and healthy hair dye products, and makes hair healthier, smoother and more lustrous.
Smart Images
Figure CN120788964A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of hair dye, in particular to a persistent hair dye based on plant extracts and a preparation method thereof. BACKGROUND
[0002] With the continuous improvement of people's pursuit of beauty, hair dyeing has become a common way of personal image shaping. However, most of the traditional hair dyes on the market contain a large amount of chemical synthetic pigments and harmful chemicals, such as p-phenylenediamine, etc. These chemicals may cause damage to the scalp and hair during use, causing allergic reactions, dry and brittle hair, hair splitting, easy breaking, etc. Long-term use may also pose potential harm to human health.
[0003] In recent years, consumers' demand for natural and healthy products has been growing, and plant extracts have received widespread attention in the hair dye field due to their natural, mild, safe and other advantages. However, existing plant hair dyes often have poor coloring effect and poor durability, which cannot meet the needs of consumers. Therefore, a persistent hair dye based on plant extracts and a preparation method thereof are designed to solve the above problems. SUMMARY
[0004] The present application aims to provide a persistent hair dye based on plant extracts and a preparation method thereof, which uses multiple plant extracts as the main source of pigments, combined with multiple auxiliary ingredients, to provide consumers with a mild, effective and relatively healthy hair dyeing option to solve the problems raised in the background art.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a persistent hair dye based on plant extracts, comprising the following raw materials by weight: 5-20 parts of a plant pigment extraction mixture, the plant pigment extraction mixture is composed of at least three different plant extracts, the plant extracts are selected from at least three of henna (henna powder) extract, indigo plant extract, madder plant extract, coffee extract, walnut shell extract, tea polyphenol extract, chamomile extract, aloe vera extract, and the plant pigment extraction mixture provides the main natural pigment source for the hair dye; 2-8 parts of a surfactant, the surfactant is a non-ionic surfactant and / or a zwitterionic surfactant; 1-5 parts of a penetration enhancer, the penetration enhancer is selected from at least one of azone, menthol, and urea; 0.5-3 parts of a stabilizer, the stabilizer is selected from at least one of vitamin C, citric acid, and ascorbic acid palmitate; 1-2 parts of sodium hyaluronate; 50-80 parts of deionized water.
[0006] In a further embodiment, the weight percentage of the henna (henna powder) extract in the plant pigment extraction mixture is 30%-60%.
[0007] In a further embodiment, the non-ionic surfactant is at least one of polyoxyethylene sorbitan fatty acid ester, alkyl glycoside; the zwitterionic surfactant is at least one of cocamidopropyl betaine, lauramidopropylamine oxide.
[0008] In a further embodiment, 0.1-2 parts of a preservative are further included, the preservative being at least one of phenoxyethanol, potassium sorbate.
[0009] In a further embodiment, 0.5-3 parts of a hair care ingredient are further included, the hair care ingredient being at least one of keratin, hydrolyzed wheat protein, hyaluronic acid.
[0010] In a further embodiment, the plant pigment extraction mixture further includes at least one plant extract with antioxidant or hair care function, the plant extract with antioxidant or hair care function being at least one of radix polygoni multiflori extract, ginseng extract, ganoderma extract, and the weight percentage of the plant extract in the plant pigment extraction mixture being 5%-20%.
[0011] In a further embodiment, the penetration enhancer is a mixture of azone and menthol, and the weight ratio of azone to menthol is 1:1-3:1. Alternatively, the penetration enhancer is plant oil camellia seed oil, grape seed oil, jojoba seed oil.
[0012] Preferably, a preparation method of a plant extract-based permanent hair dye, for preparing the plant extract-based permanent hair dye, includes the following steps: A1, heating deionized water to 40-60℃, sequentially adding surfactants, stabilizers, stirring until completely dissolved to obtain a mixed solution A; A2, adding a plant pigment extraction mixture and a penetration enhancer to the mixed solution A, stirring at 40-60℃ for 20-60 minutes to obtain a mixed solution B; A3, if the formula includes a preservative and a hair care ingredient, adding the preservative and the hair care ingredient to the mixed solution B, continuing to stir for 10-30 minutes, then adjusting the pH value of the mixed solution to 5-7 with a pH adjuster, and cooling to room temperature to obtain the plant extract-based permanent hair dye; A4、When the formula contains oil and fat ingredients, the plant pigment extraction mixture, the penetration enhancer and the oil and fat ingredients are added together into the mixed solution A in step A2, stirring at 40-60℃ for 20-60 minutes to obtain mixed solution B, and the subsequent steps are carried out according to step A3; A5、When the product is made into a foam, it also contains 0.5-3 parts of a foaming agent selected from at least one of cocamide DEA, sodium laureth sulfate, which is added into the mixed solution B together with the preservative, hair care ingredients and scalp soothing ingredients in step A3, and continues to stir for 10-30 minutes, and then the subsequent pH adjustment and cooling steps are carried out, and finally the foam product is made through a foaming device.
[0013] Compared with the prior art, the beneficial effects of the present application are: 1、The hair dyeing agent described in the present application uses a plurality of plant extracts as the main pigment source, reduces the use of chemical synthetic pigments, reduces damage to the scalp and hair, the plant pigments are closely combined with the hair, and other ingredients in the hair dyeing agent help to improve the color stability, making the hair dyeing effect more durable, and reducing the frequency of frequent hair dyeing.
[0014] 2、By reasonably matching a plurality of plant extracts and adding penetration enhancers and other ingredients, the hair dyeing agent can better penetrate into the inside of the hair, and the addition of hair care ingredients and plant extracts with antioxidant or hair repair functions can nourish and repair the hair while dyeing the hair, improve the texture of the hair, make the hair more healthy, smooth and shiny, achieve good coloring effect, the color is bright and full, has good coloring effect and durability, and meets the needs of consumers for natural and healthy hair dyeing products. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 and Figure 2 are respectively the comparison photos of a male adult before and after using the present application; Figure 3 and Figure 4 are respectively the comparison photos of a female adult before using the present application. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present application will be described below in a clear and complete manner. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0017] Embodiment. This embodiment provides a permanent hair dye based on plant extracts, comprising the following raw materials in parts by weight: 5-20 parts of a plant pigment extract mixture, wherein the plant pigment extract mixture is composed of at least three different plant extracts, the plant extracts being selected from at least three of henna extract, indigo plant extract, madder plant extract, coffee extract, walnut shell extract, tea polyphenol extract, chamomile extract, and aloe extract, and the plant pigment extract mixture provides the main natural pigment source for the hair dye; the weight proportion of henna extract in the plant pigment extract mixture is 30%-60%.
[0018] 2-8 parts of a surfactant, wherein the surfactant is a nonionic surfactant and / or a zwitterionic surfactant; the nonionic surfactant is at least one of polyoxyethylene sorbitan fatty acid ester and alkyl polyglycoside; the zwitterionic surfactant is at least one of cocamidopropyl betaine and lauryl amide propyl amine oxide.
[0019] 1-5 parts of a penetration enhancer, wherein the penetration enhancer is selected from at least one of azone, menthol, and urea; 0.5-3 parts of a stabilizer, wherein the stabilizer is selected from at least one of vitamin C, citric acid, and ascorbyl palmitate; 1-2 parts sodium hyaluronate for conditioning hair.
[0020] 50-80 parts deionized water.
[0021] The invention also contains 0.1-2 parts of a preservative, wherein the preservative is selected from at least one of phenoxyethanol and potassium sorbate.
[0022] The hair care product further comprises 0.5-3 parts of a hair care component, wherein the hair care component is selected from at least one of keratin, hydrolyzed wheat protein and hyaluronic acid.
[0023] The plant pigment extract mixture also contains at least one plant extract with antioxidant or hair repair function. The plant extract with antioxidant or hair repair function is selected from at least one of Polygonum multiflorum extract, ginseng extract, and Ganoderma lucidum extract, and its weight proportion in the plant pigment extract mixture is 5%-20%.
[0024] The penetration enhancer is a mixture of azone and menthol, and the weight ratio of azone to menthol is 1:1-3:1; or the penetration enhancer is plant oils such as camellia seed oil, grape seed oil, and jojoba seed oil.
[0025] The present invention also discloses a method for preparing a permanent hair dye based on plant extracts, which is used to prepare the permanent hair dye based on plant extracts, comprising the following steps: A1, heat the deionized water to 40-60℃, add the surfactant and stabilizer in turn, stir until completely dissolved to obtain a mixed solution A; A2, add the plant pigment extraction mixture and penetration enhancer to the mixed solution A, stir at 40-60℃ for 20-60 minutes to obtain a mixed solution B; A3, if the formula contains preservatives and hair care ingredients, add the preservatives and hair care ingredients to the mixed solution B, continue to stir for 10-30 minutes, then adjust the pH value of the mixed solution to 5-7 with a pH adjuster, and cool to room temperature to obtain a plant extract-based permanent hair dye; A4, when the formula contains oil-based ingredients, in step A2, add the plant pigment extraction mixture, penetration enhancer and oil-based ingredients to the mixed solution A together, stir at 40-60℃ for 20-60 minutes to obtain a mixed solution B, and the subsequent steps are carried out according to step A3; A5, when a foam product is prepared, 0.5-3 parts of a foaming agent is also contained, the foaming agent is selected from at least one of cocamide DEA and sodium laureth sulfate, in step A3, when the formula contains a foaming agent, add the foaming agent to the mixed solution B together with the preservatives, hair care ingredients and scalp soothing ingredients, continue to stir for 10-30 minutes, then carry out the subsequent pH adjustment and cooling steps, and finally prepare a foam product through a foaming device.
[0026] Now detailed analysis is made for different hair dye formulas: First: plant extract-based permanent hair dye formula: Plant pigment extraction mixture (henna extract 40%, indigo plant extract 30%, madder plant extract 30%): 12 parts; Polyoxyethylene sorbitan fatty acid ester: 3 parts; Cocamidopropyl betaine: 2 parts; Azone: 2 parts; Menthol: 1 part; Vitamin C: 1.5 parts; Citric acid: 0.5 parts; Deionized water: 69 parts; Phenoxyethanol: 1 part; Keratin: 2 parts; Fo-ti extract (10% of the plant pigment extraction mixture): 1 part.
[0027] Preparation method: Step A1: Add 70 parts of deionized water into the reaction kettle, heat to 50°C, add 5 parts of surfactant (3 parts of polyoxyethylene sorbitan fatty acid ester and 2 parts of cocamide propyl betaine) and 2 parts of stabilizer (1.5 parts of vitamin C and 0.5 parts of citric acid) in turn, start the stirring device and stir until completely dissolved to obtain mixed solution A.
[0028] Step A2: Add 12 parts of plant pigment extraction mixture (6 parts of henna extract, 3 parts of indigo plant extract, 3 parts of madder plant extract) and 3 parts of penetration enhancer (2 parts of azone and 1 part of menthol) into mixed solution A, stir at 50°C for 40 minutes to obtain mixed solution B.
[0029] Step A3: Add 1 part of preservative (phenoxyethanol) and 2 parts of hair care ingredient (keratin) to mixed solution B, continue stirring for 20 minutes, then adjust the pH of the mixed solution to 6 with a pH adjuster (such as a citric acid solution), and cool to room temperature to obtain a permanent hair dye based on plant extracts.
[0030] I. Preparation before use: Allergy test: 48 hours before formal dyeing, select the more sensitive skin area behind the ear or the inner side of the arm, dip a small amount of undiluted hair dye on a cotton swab, evenly apply it on an area of about 1 square centimeter, forming a thin layer. Wait for 48 hours, do not wash the test site during this period, and closely observe the skin reaction.
[0031] II. Dye preparation: According to the proportion on the product instructions, pour each ingredient into the dye bowl. Use a dye brush to stir thoroughly, keep the stirring direction consistent, and stir for about 2-3 minutes until the mixture is evenly mixed and forms a smooth and particle-free dye paste.
[0032] III. Dyeing steps: Hair partitioning: Use hairpins to divide the hair into several areas, which can be divided into forehead, both sides, back of the head, etc. Each large area can be further divided into 2-3 small areas, and the partitioning should be as uniform as possible.
[0033] Start applying: Wear gloves, dip the appropriate amount of dye paste on the dye brush, and start applying from the root of the hair, gradually extending to the tips. The application should be uniform in technique and moderate in force, avoiding pulling the hair.
[0034] Massage the scalp: After applying all the hair, gently massage the scalp with your fingers for 2-3 minutes to help the dye penetrate better into the hair.
[0035] Wait for the dye to take effect: Wait for the dye to take effect according to the recommended time in the product instructions, generally 30-60 minutes. During this waiting period, you can wrap your hair in a towel or plastic wrap to maintain a certain temperature to help speed up the coloring process, but don't wrap it too tightly to avoid affecting blood circulation in the scalp.
[0036] 4. Post-treatment of hair dyeing: Rinse your hair: After the waiting time is up, rinse the dye thoroughly with warm water until the water runs clear. Gently scrunch your hair while rinsing, avoiding pulling.
[0037] Finally, the coloring effect and durability test was performed: 5 volunteers (3 males and 2 females) were selected, and the hair dye prepared in the above example was evenly applied to the volunteers' hair. The hair was dyed according to conventional hair dyeing procedures, and the hair color was observed after dyeing.
[0038] The results show that the hair dye has a good coloring effect and uniform color, and the color can still maintain a good brightness after multiple shampooing (such as after 12 weeks of use), indicating that the permanent hair dye based on plant extracts in this application has good coloring effect and durability.
[0039] In addition to the first formula above, a second one is included: a plant-based permanent hair dye formula (with antioxidant plant extracts): Plant pigment extract mixture (henna extract 40%, indigo plant extract 30%, madder plant extract 30%): 15 parts; Polygonum multiflorum extract (10% of plant pigment extract mixture): 2 parts; Alkyl glycoside: 4 parts; Lauramide propylamine oxide: 2 parts; Azone (mixture with menthol in a weight ratio of 2:1): 3 parts; Menthol: 1 part; Ascorbyl palmitate: 2 parts; Citric acid: 0.5 parts; Deionized water: 65 parts; Potassium sorbate: 1.5 parts; Hydrolyzed wheat protein: 2.5 parts; Preparation method: Step A1: Add 65 parts of deionized water into a reactor and heat to 45°C. Then, add 6 parts of a surfactant (4 parts of an alkyl glycoside and 2 parts of lauryl amide propyl amine oxide) and 2.5 parts of a stabilizer (2 parts of ascorbyl palmitate and 0.5 parts of citric acid) in sequence. Turn on the stirring device and stir until completely dissolved to obtain a mixed solution A.
[0040] Step A2: Add 15 parts of plant pigment extraction mixture (7.5 parts of Lawsonia inermis extract, 3 parts of Indigofera tinctoria extract, 2.5 parts of Rubia cordifolia extract, 2 parts of Radix Polygoni Multiflori extract) and 4 parts of penetration enhancer (3 parts of azone and 1 part of menthol) into the mixed solution A, stir for 50 minutes at 45°C to obtain mixed solution B.
[0041] Step A3: Add 1.5 parts of preservative (potassium sorbate) and 2.5 parts of hair care ingredient (hydrolyzed wheat protein) into the mixed solution B, continue to stir for 25 minutes, then adjust the pH value of the mixed solution to 5.5 with a pH adjuster (such as phosphoric acid solution), and cool to room temperature to obtain the plant extract-based permanent hair dye.
[0042] Third: plant extract-based permanent hair dye formula (made into a foam product): Plant pigment extraction mixture (Lawsonia inermis extract 40%, Indigofera tinctoria extract 30%, coffee extract 30%): 12 parts; Surfactant: 4 parts; Polyoxyethylene sorbitan fatty acid ester: 2 parts; Cocamidopropyl betaine: 2 parts; Azone: 2 parts; Menthol: 0.5 parts: Vitamin C: 1 part; Ascorbyl palmitate: 0.5 parts; Deionized water: 75 parts; Phenoxyethanol 0.8 parts; Hyaluronic acid: 1.8 parts; Cocamide DEA: 1.5 parts.
[0043] Preparation method step A1 : Add 75 parts of deionized water into the reaction kettle, heat to 55°C, add 4 parts of surfactant (2 parts of polyoxyethylene sorbitan fatty acid ester and 2 parts of cocamidopropyl betaine), 1.5 parts of stabilizer (1 part of vitamin C and 0.5 parts of ascorbyl palmitate) in turn, start the stirring device, stir until completely dissolved to obtain mixed solution A.
[0044] Step A2: Add 10 parts of plant pigment extraction mixture (5 parts of Lawsonia inermis extract, 2.5 parts of Indigofera tinctoria extract, 2.5 parts of coffee extract) and 2.5 parts of penetration enhancer (2 parts of azone and 0.5 parts of menthol) into the mixed solution A, stir for 30 minutes at 55°C to obtain mixed solution B.
[0045] Step A3: Add 0.8 parts of preservative (phenoxyethanol), 1.8 parts of hair care ingredient (hyaluronic acid) and 1.5 parts of foaming agent (cocamide DEA) into the mixed solution B, continue to stir for 20 minutes, then adjust the pH value of the mixed solution to 6.5 with pH adjuster (such as malic acid solution), cool to room temperature, and finally make the product into foam through foaming equipment.
[0046] The above second and third permanent hair dyes can be selected and used according to different user needs.
[0047] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes 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 permanent hair dye based on plant extracts, characterized in that include: Contains the following raw materials in parts by weight: 5-20 parts of a plant pigment extract mixture, wherein the plant pigment extract mixture is composed of at least three different plant extracts, wherein the plant extracts are selected from at least three of henna extract, indigo plant extract, madder plant extract, coffee extract, walnut shell extract, tea polyphenol extract, chamomile extract, and aloe extract, and the plant pigment extract mixture provides the main natural pigment source for the hair dye; 2-8 parts of a surfactant, wherein the surfactant is a nonionic surfactant and / or a zwitterionic surfactant; 1-5 parts of a penetration enhancer, wherein the penetration enhancer is selected from at least one of azone, menthol, and urea; 0.5-3 parts of a stabilizer, wherein the stabilizer is at least one selected from vitamin C, citric acid, and ascorbyl palmitate; 1-2 parts sodium hyaluronate; 50-80 parts deionized water.
2. The permanent hair dye based on plant extracts according to claim 1, characterized in that The weight proportion of henna (henna powder) extract in the plant pigment extraction mixture is 30%-60%.
3. The permanent hair dye based on plant extracts according to claim 1, characterized in that The nonionic surfactant is at least one of polyoxyethylene sorbitan fatty acid ester and alkyl polyglycoside; the zwitterionic surfactant is at least one of cocamidopropyl betaine and lauryl amide propyl amine oxide.
4. The permanent hair dye based on plant extracts according to claim 1, characterized in that The invention also contains 0.1-2 parts of a preservative, wherein the preservative is selected from at least one of phenoxyethanol and potassium sorbate.
5. The permanent hair dye based on plant extracts according to claim 1, characterized in that The invention also contains 0.5-3 parts of a hair care component, wherein the hair care component is selected from at least one of keratin, hydrolyzed wheat protein and hyaluronic acid.
6. The permanent hair dye based on plant extracts according to claim 1, characterized in that The plant pigment extraction mixture also contains at least one plant extract with antioxidant or hair repair function, wherein the plant extract with antioxidant or hair repair function is selected from at least one of Polygonum multiflorum extract, ginseng extract, and Ganoderma lucidum extract, and its weight proportion in the plant pigment extraction mixture is 5%-20%.
7. The permanent hair dye based on plant extracts according to claim 1, characterized in that The penetration enhancer is a mixture of azone and menthol, and the weight ratio of azone to menthol is 1:1-3:
1. Alternatively, the penetration enhancer is plant oil such as camellia seed oil, grape seed oil, or jojoba seed oil.
8. A method for preparing a permanent hair dye based on a plant extract, for preparing the permanent hair dye based on a plant extract according to any one of claims 1 to 7, characterized in that: The steps include: A1. Heat deionized water to 40-60°C, add surfactant and stabilizer in sequence, and stir until completely dissolved to obtain mixed solution A. A2. Add the plant pigment extract mixture and the penetration enhancer to the mixed solution A, and stir at 40-60° C. for 20-60 minutes to obtain a mixed solution B; A3. If the formula contains preservatives and hair care ingredients, add the preservatives and hair care ingredients to the mixed solution B, continue stirring for 10-30 minutes, then adjust the pH value of the mixed solution to 5-7 with a pH adjuster, and cool to room temperature to obtain the permanent hair dye based on plant extracts; A4. When the formula contains an oil component, in step A2, the plant pigment extract mixture, the penetration enhancer, and the oil component are added to the mixed solution A, and stirred at 40-60°C for 20-60 minutes to obtain a mixed solution B. The subsequent steps are carried out according to step A3; A5. When a foam product is prepared, 0.5-3 parts of a foaming agent is further included, wherein the foaming agent is selected from at least one of cocamide DEA and sodium laureth sulfate. In step A3, when the formula contains a foaming agent, the foaming agent is added to the mixed solution B together with the preservative, hair care ingredients, and scalp soothing ingredients. The mixture is stirred for 10-30 minutes, and then the pH is adjusted and cooled. Finally, the foam product is prepared by a foaming device.