Natural hair dye with toxin removal and oxidation functions and preparation method thereof

Abstract

The invention relates to the field of hair dyeing products, and discloses a natural hair dye with toxin removal and oxidation functions and a preparation method thereof, the hair dye comprises the following components by weight: 5-15 parts of indigo powder; 5-15 parts of nail pollen; 3-8 parts of coffee powder; 2-8 parts of corn starch; 1-3 parts of activated carbon; 1 to 3 parts of bentonite; 1-3 parts of tea polyphenol; 0.5 to 2 parts of vitamin C; 1-2 parts of pomegranate extract; 2-5 parts of coconut oil or jojoba oil; 1-3 parts of mineral oil; 2 to 5 parts of aloe gel; 0.5 to 2 parts of sodium silicate; and 40-60 parts of deionized water. According to the method, dyeing components are finely crushed and uniformly distributed, so that the dyeing uniformity and durability are improved; by refining toxin-removing components and uniformly dispersing the toxin-removing components, the adsorption and cleaning effects on scalp and hair impurities are enhanced; the stability and moisturizing treatment of antioxidant components are optimized, and oxidation failure and drying after dyeing in the hair dyeing process are prevented.

Description

Technical Field

[0001] The invention relates to the field of hair dye products, in particular to a natural hair dye with toxin removal and oxidation functions and a preparation method thereof. Background Art

[0002] Hair dyes are an important part of modern hair care products, among which hair dyes with toxin removal and antioxidant functions are becoming more and more popular in the market. As consumers pay more attention to health, beauty and natural products, hair dyes must not only have good dyeing effects, but also be able to remove impurities and toxins from the scalp and hair, while avoiding oxidative damage to the hair during the dyeing process. Therefore, the development of natural hair dyes with toxin removal and antioxidant functions has become an important development direction in the field of hair dyeing.

[0003] Existing hair dyes that remove toxins and have antioxidant properties usually use plant extracts and mineral ingredients to remove scalp oil and impurities and improve the scalp environment. At the same time, some hair dyes add antioxidants, such as vitamin E and tea polyphenols, to alleviate the damage caused by oxidation during the hair dyeing process. Such products can provide cleaning and antioxidant effects to a certain extent, making the hair smoother and more healthy after dyeing.

[0004] Existing toxin-removing and antioxidant hair dyes have deficiencies in uniformity, durability and moisturizing. First, the particles of the dyeing ingredients are large and cannot evenly cover the surface of the hair, resulting in uneven dyeing and rapid fading. Second, the toxin-removing ingredients are unevenly distributed and have limited adsorption effects, making it difficult to thoroughly clean the scalp and hair. In addition, the antioxidant ingredients are not stable and are prone to oxidative failure during the dyeing process, and the moisturizing effect is insufficient, resulting in the hair drying and fading after dyeing. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a natural hair dye with toxin removal and oxidation functions and a preparation method thereof, which solves the deficiencies in uniformity, durability and moisturizing properties of the hair dye in the prior art.

[0006] To achieve the above objectives, the present invention is implemented by the following technical scheme: a natural hair dye with toxin removal and oxidation functions and a preparation method thereof, wherein the hair dye comprises the following components in parts by weight: 5-15 parts of indigo powder; 5-15 parts of henna powder; 3-8 portions of coffee powder; 2-8 parts corn starch; 1 to 3 parts of activated carbon; 1-3 parts of bentonite; 1-3 parts of tea polyphenols; Vitamin C 0.5-2 parts; 1-2 parts of pomegranate extract; 2-5 parts coconut oil or jojoba oil; 1-3 parts of mineral oil; 2-5 portions of aloe vera gel; 0.5-2 parts of sodium silicate; 40-60 parts of deionized water.

[0007] The present invention also provides a method for preparing a natural hair dye having toxin removal and oxidation functions, comprising the following steps: Pre-treat the dyeing ingredients, detoxifying ingredients, antioxidant ingredients, moisturizing ingredients, alkaline conditioners and solvents; Mixing the ingredients in a predetermined order to form a uniform paste hair dye base; Homogenization is performed to obtain a fine, even hair dye; Cool the homogenized hair dye and store in an airtight container.

[0008] Preferably, the pretreatment of the dyeing component comprises the following steps: Grind indigo powder, henna powder and coffee powder separately to less than 200 mesh to obtain fine powder; The obtained fine powder is sieved to ensure uniform particle size.

[0009] Preferably, the pretreatment of the detoxifying component comprises the following steps: Grind corn starch, activated carbon and bentonite to less than 200 mesh respectively; The crushed ingredients are mixed well to ensure uniform distribution of the adsorptive ingredients.

[0010] Preferably, the pretreatment of the antioxidant component comprises the following steps: Dissolve tea polyphenols, vitamin C and pomegranate extract in deionized water, and control the dissolving temperature at 30-40°C; The obtained solution was cooled to room temperature to form a uniform antioxidant solution for later use.

[0011] Preferably, the pretreatment of the moisturizing component comprises the following steps: Mixing coconut oil or jojoba oil with mineral oil at a low temperature below 40° C. to obtain a mixture; 0.5% of a natural emulsifier was added to the mixture to form a stable oil phase.

[0012] Preferably, the pretreatment of the alkaline conditioning agent comprises the following steps: Dissolve sodium silicate in a small amount of warm water, control the water temperature at 30°C, and stir until it is completely dissolved to form an alkaline solution for use.

[0013] Preferably, the step of mixing the ingredients comprises the following steps: Add the dyeing ingredients, detoxifying ingredients and antioxidant solution to the mixing container and stir for 5 minutes using a low speed stirrer; Slowly add the oil phase and continue stirring for 10 minutes to ensure that the oil phase and other ingredients are evenly blended; Add alkaline solution and stir for 5 minutes to provide a slightly alkaline environment; Finally, add aloe vera gel and deionized water and stir for 10 minutes to obtain a uniform paste-like hair dye base.

[0014] Preferably, the homogenization step comprises the following steps: Transfer the paste hair dye base to a homogenizer; Homogenize at 4000 rpm for 2-3 minutes to obtain a fine, uniform hair dye texture.

[0015] Preferably, the cooling and storing steps include the following steps: Cool the homogenized hair dye to room temperature to maintain the activity of the antioxidant ingredients; Transfer the cooled hair dye to an airtight container and store in a cool, dry place.

[0016] The present invention provides a natural hair dye with toxin removal and oxidation functions and a preparation method thereof. It has the following beneficial effects: 1. The present invention achieves a natural and lasting dyeing effect by finely crushing and evenly distributing the dyeing ingredients, thereby achieving uneven dyeing and fading problems, and greatly improving the effect and experience of hair dyeing.

[0017] 2. The present invention uses a refinement and uniform dispersion process of the detoxifying component to ensure that it effectively absorbs impurities, heavy metals and grease on the scalp and hair during the hair dyeing process, provides a clean hair dyeing environment, and helps to enhance the adhesion and durability of the dyeing.

[0018] 3. The present invention achieves uniform and delicate hair dye matrix through temperature-controlled dissolution of antioxidant ingredients, low-temperature emulsification of moisturizing ingredients, and final homogenization treatment, with significant antioxidant and moisturizing effects, thus extending dyeing durability, preventing hair from drying and fading, and keeping hair healthy and shiny after dyeing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a flow chart of the preparation method of the present invention. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Please refer to the attached Figure 1 The embodiment of the present invention provides a natural hair dye with toxin removal and oxidation functions and a preparation method thereof. The hair dye comprises the following components in parts by weight: 5-15 parts of indigo powder; 5-15 parts of henna powder. The combination of henna powder and indigo powder can produce different levels of brown or dark brown effects. By adjusting the ratio of the two, a variety of dyeing depths can be achieved. Henna powder has good adhesion and can remain on the hair for a long time. Its plant origin makes it mild in dyeing and will not cause scalp allergies or discomfort. 3-8 portions of coffee powder; Coffee powder is rich in polyphenols and has antioxidant effects. Its natural fragrance helps to improve the smell of hair dye and enhance user experience. It not only improves the softness of the hair dye's tone, but also enhances the product's antioxidant capacity and improves the overall experience of using the hair dye. 2-8 parts of corn starch. As an absorbent material, corn starch can effectively absorb oil and impurities on the scalp and hair. The introduction of corn starch helps to clean the scalp and ensure hygiene during the hair dyeing process. At the same time, it increases the adhesion of the hair dye, making it more convenient to use; 1-3 parts of activated carbon. Activated carbon has a strong adsorption capacity and can effectively absorb heavy metals, impurities and harmful substances on the scalp. The addition of activated carbon ensures the removal of toxins during the hair dyeing process, making hair dyeing healthier and safer. 1-3 parts of bentonite. Bentonite is a natural mineral with strong adsorption capacity. It can absorb harmful substances such as oil, impurities and heavy metals. The use of bentonite helps hair dye to achieve a more thorough detoxification function and ensure the health of the scalp during the dyeing process. 1-3 parts of tea polyphenols. The introduction of tea polyphenols delays the process of hair oxidation and discoloration, increases the durability of dyeing, and protects the health of the scalp. 0.5-2 parts of vitamin C. Vitamin C can neutralize the oxides that may be produced during the hair dyeing process, preventing the hair from oxidizing and fading, thereby improving the antioxidant effect of the hair dye, prolonging the duration of the hair dyeing effect, and giving the hair a natural luster; 1-2 parts of pomegranate extract, which enhances the antioxidant properties of hair dyes, prevents fading after dyeing, and increases the smoothness of hair; 2-5 parts of coconut oil or jojoba oil. Both coconut oil and jojoba oil are natural moisturizing ingredients that can provide nourishment and moisturizing effects for hair. The addition of coconut oil or jojoba oil improves the moisturizing effect after dyeing hair, makes hair softer, and improves the dryness problem after dyeing hair; 1-3 parts of mineral oil. Mineral oil has a moisturizing and isolating effect and can form a protective film to prevent moisture loss during the hair dyeing process. The use of mineral oil enhances the moisturizing effect of the hair dye, ensures uniform dyeing and is not easy to dry, and improves the hair dyeing experience; 2-5 parts of aloe vera gel. Aloe vera gel has soothing, moisturizing and anti-inflammatory effects, thus reducing scalp irritation during the hair dyeing process, while increasing the lubricity of the hair dye, making it easier to apply; 0.5-2 parts of sodium silicate. Sodium silicate is an alkaline substance that can provide a slightly alkaline environment in the hair dye. The addition of sodium silicate makes the hair dye have a better dyeing effect and the hair is not easy to fade, ensuring the durability of the hair dye. 40-60 parts of deionized water. The addition of deionized water makes the hair dye have good fluidity and stability, ensures uniform application during the hair dyeing process, and improves the convenience of use.

[0022] The present invention also provides a method for preparing a natural hair dye having toxin removal and oxidation functions, comprising the following steps: Pre-treating the dyeing ingredients, detoxifying ingredients, antioxidant ingredients, moisturizing ingredients, alkaline regulators and solvents. The pre-treatment allows the various ingredients of the hair dye to reach the optimal particle size and distribution state to enhance its dyeing, detoxifying, antioxidant and moisturizing effects. The overall pre-treatment steps ensure the uniformity, stability and effectiveness of the hair dye, making the hair dyeing process more efficient, gentle and safe; Mixing the ingredients in a predetermined order to form a uniform paste-like hair dye matrix, by mixing the ingredients in a predetermined order, the uniformity of the hair dye matrix can be ensured, the hair dye can be applied smoothly, the synergistic effect of the dyeing, detoxifying and antioxidant ingredients can be ensured, and the hair dyeing effect and hair dyeing experience can be improved; Homogenization is performed to obtain a fine and uniform hair dye. Homogenization makes the hair dye have a fine texture, improves the convenience of use, and ensures a more uniform and lasting dyeing effect; The homogenized hair dye is cooled and stored in a sealed container. Through cooling and sealed storage, the active ingredients of the hair dye are ensured to remain stable during storage, the shelf life is extended, and the antioxidant function and dyeing effect of the hair dye are guaranteed.

[0023] Please see attached Figure 1 In a preferred embodiment of the present invention, the pretreatment of the dyeing component comprises the following steps: Grind indigo powder, henna powder and coffee powder separately to less than 200 mesh to obtain fine powder; The obtained fine powder is sieved to ensure uniform particle size.

[0024] Specifically: the specific surface area of ​​the dyeing ingredients is increased through the crushing step, ensuring that the dyeing particles can evenly cover the hair, enhancing the adhesion and uniformity of the dyeing; and the screening step ensures the uniformity of the particles, avoiding uneven dyeing due to inconsistent particle size of the dyeing particles in the hair dye, so that the hair dye can provide a natural and lasting dyeing effect during the hair dyeing process, while improving the uniformity and stability of the dyeing, bringing users a better hair dyeing experience.

[0025] Please refer to the attached Figure 1 In a preferred embodiment of the present invention, the pretreatment of the detoxifying component comprises the following steps: Grind corn starch, activated carbon and bentonite to less than 200 mesh respectively; The crushed ingredients are mixed well to ensure uniform distribution of the adsorptive ingredients.

[0026] Specifically: the specific surface area of ​​the detoxifying ingredient is increased by crushing, making its adsorption capacity stronger, and it can effectively remove grease, impurities and heavy metals on the scalp and hair; and the mixing step ensures the uniform distribution of the detoxifying ingredient in the hair dye, so that it can play an adsorption and cleaning role in all parts of the hair during the dyeing process, and can provide a significant cleaning effect during the hair dyeing process, ensuring that the scalp and hair are clean and free of impurities, laying a good foundation for the uniformity and durability of the dyeing effect.

[0027] Please refer to the attached Figure 1 In a preferred embodiment of the present invention, the pretreatment of the antioxidant component comprises the following steps: Dissolve tea polyphenols, vitamin C and pomegranate extract in deionized water, and control the dissolving temperature at 30-40°C; The obtained solution was cooled to room temperature to form a uniform antioxidant solution for later use.

[0028] Specifically: dissolution can ensure that the antioxidant ingredients can be fully dissolved and their activity is not destroyed, and they can be effectively distributed in the hair dye matrix, thereby enhancing the antioxidant effect of the hair dye; and the cooling step stabilizes the properties of the solution, which helps to evenly distribute the antioxidant ingredients in the subsequent mixing process, so that the hair dye can continue to exert its antioxidant effect during the dyeing process, prevent oxidative damage and fading of the hair, significantly prolong the durability of the dyeing effect, and protect the health of the hair.

[0029] Please refer to the attached Figure 1 In a preferred embodiment of the present invention, the pretreatment of the moisturizing component comprises the following steps: Mixing coconut oil or jojoba oil with mineral oil at a low temperature below 40° C. to obtain a mixture; 0.5% of a natural emulsifier was added to the mixture to form a stable oil phase.

[0030] Specifically: low-temperature mixing can ensure the activity and stability of oily ingredients and avoid stratification and failure caused by high temperature; the addition of emulsifiers makes the oil phase more stable in the hair dye matrix, avoiding stratification problems in subsequent use, and allowing the moisturizing ingredients of the hair dye to provide continuous nourishing and moisturizing effects during the dyeing process, preventing the hair from drying out after dyeing, improving the hair dyeing experience, and keeping the hair healthy, smooth and shiny.

[0031] Please see attached Figure 1 In a preferred embodiment of the present invention, the pretreatment of the alkaline conditioning agent comprises the following steps: Dissolve sodium silicate in a small amount of warm water, control the water temperature at 30°C, and stir until it is completely dissolved to form an alkaline solution for use.

[0032] Specifically: this dissolution can ensure that sodium silicate generates a stable alkaline solution under mild conditions, which helps to maintain the pH value of the hair dye; and the stirring step ensures the uniformity of the solution, so that the alkaline components are evenly distributed in the hair dye matrix, avoiding local excessive alkalinity caused by undissolved particles, thereby providing a stable alkaline environment for the hair dye during the dyeing process, helping to open the cuticle of the hair and improve the penetration effect of the dyeing ingredients, thereby improving the uniformity and durability of the dyeing.

[0033] Please see attached Figure 1 In a preferred embodiment of the present invention, the step of mixing the components comprises the following steps: Add the dyeing ingredients, detoxifying ingredients and antioxidant solution into the mixing container and stir with a low-speed stirrer for 5 minutes. The preliminary mixing step ensures the uniform distribution of the dyeing, detoxifying and antioxidant ingredients, provides a good dispersion base for the subsequently added ingredients, and makes the hair dye have better adhesion and uniformity when used; Slowly add the oil phase and continue stirring for 10 minutes to ensure that the oil phase is evenly blended with other ingredients. The slow addition of the oil phase helps prevent the separation of the oil phase and the water phase. By extending the stirring time, the oily ingredients can be evenly dispersed in the matrix, ensuring that the oily moisturizing ingredients are stably integrated into the hair dye matrix without stratification. The continuous stirring process allows the oily ingredients and other water-based ingredients to penetrate each other, improving the stability and durability of the hair dye. Add alkaline solution and stir for 5 minutes to provide a slightly alkaline environment. The addition of alkaline solution can maintain the pH value of the entire mixture within the slightly alkaline range. This environment helps to open the hair cuticle, increase the permeability of the dyeing ingredients, and make the dyeing effect more durable and uniform. The 5-minute stirring time is enough to ensure that the alkaline solution is evenly distributed in the matrix to avoid scalp discomfort or hair damage caused by excessively high local pH; Finally, add aloe vera gel and deionized water and stir for 10 minutes to obtain a uniform paste-like hair dye base. The aloe vera gel has a moisturizing and soothing effect, while the deionized water can adjust the consistency of the hair dye to make it easy to apply. The final 10 minutes of stirring ensures that all ingredients are completely blended to form a stable paste.

[0034] Please refer to the attached Figure 1 In a preferred embodiment of the present invention, the homogenization step comprises the following steps: The paste-like hair dye matrix is ​​transferred to a homogenizer. The homogenizer generates strong shearing force and mixing action under high-speed rotation, so that the component particles in the hair dye matrix are further refined and fully dispersed. This step can effectively break the aggregation state between tiny particles and make each component evenly distributed in the hair dye matrix, thereby avoiding the granularity or agglomeration phenomenon that may appear in the hair dye. The hair dye matrix after homogenization has a delicate texture, making the application process smoother and more fluent; Homogenize at 4000 rpm for 2 to 3 minutes to obtain a fine and uniform hair dye texture. 2 to 3 minutes of homogenization can effectively refine the hair dye particles to achieve appropriate fluidity and consistency, suitable for evenly applying to the hair. This appropriate processing time can also maintain the viscosity of the hair dye, allowing it to form a stable adhesion layer on the hair surface, which will not be difficult to fix due to excessive flow.

[0035] Please refer to the attached Figure 1 In a preferred embodiment of the present invention, the cooling and storing steps include the following steps: Cooling the homogenized hair dye to room temperature to maintain the activity of the antioxidant components. Cooling can ensure that the activity of the antioxidant components is stable, so that the hair dye maintains the antioxidant effect during storage, prolongs the durability of the dye, and ensures that the hair is protected from oxidative damage; Transfer the cooled hair dye to a sealed container and store it in a cool, dry place. The sealed container can isolate air and moisture, preventing the active ingredients in the hair dye from coming into contact with external oxygen or moisture and producing adverse reactions. In addition, storing the sealed hair dye in a cool, dry place can help avoid the effects of temperature fluctuations and light on the hair dye, thereby extending its shelf life.

[0036] In order to better understand the present invention, the above contents are described in detail below in conjunction with specific embodiments.

[0037] Embodiment 1: Dyeing ingredients: 10 parts indigo powder, 10 parts henna powder, 5 parts coffee powder Detoxifying ingredients: 4 parts corn starch, 2 parts activated carbon Antioxidant ingredients: 1 part of tea polyphenols Moisturizing ingredients: 3 parts coconut oil, 1 part mineral oil Alkaline conditioner: None Solvent: 50 parts of deionized water.

[0038] Embodiment 2: Dyeing ingredients: 12 parts indigo powder, 8 parts henna powder, 3 parts coffee powder (crushed to less than 200 mesh) Detoxifying ingredients: 4 parts corn starch, 1.5 parts activated carbon, 2 parts bentonite (crushed to less than 200 mesh) Antioxidant ingredients: 2 parts of tea polyphenols, 1 part of vitamin C (dissolved in 30°C deionized water) Moisturizing ingredients: 3 parts coconut oil, 1 part mineral oil (with 0.5% natural emulsifier) Alkaline regulator: 0.8 parts of sodium silicate (dissolved in warm water) Solvent: 48 parts of deionized water.

[0039] Embodiment 3: Dyeing ingredients: 10 parts indigo powder, 10 parts henna powder, 5 parts coffee powder (crushed to less than 200 mesh) Detoxifying ingredients: 5 parts corn starch, 2 parts activated carbon, 1 part bentonite (crushed to less than 200 mesh) Antioxidant ingredients: 1.5 parts of tea polyphenols, 1.5 parts of vitamin C, 1.2 parts of pomegranate extract (dissolved in 30-40℃ deionized water and cooled) Moisturizing ingredients: 4 parts jojoba oil, 2 parts mineral oil (with 0.5% natural emulsifier) Alkaline regulator: 1.2 parts sodium silicate (dissolved in warm water) Solvent: 44 parts of deionized water.

[0040] Embodiment 4: Dyeing ingredients: 10 parts indigo powder, 10 parts henna powder, 5 parts coffee powder (crushed to less than 200 mesh) Detoxifying ingredients: 4 parts corn starch, 2 parts activated carbon, 2 parts bentonite (crushed to less than 200 mesh and mixed evenly) Antioxidant ingredients: 1 part tea polyphenols, 1 part vitamin C Moisturizing ingredients: 2 parts coconut oil, 1 part mineral oil (with 0.5% natural emulsifier) Alkaline regulator: 1 part sodium silicate (dissolved in warm water) Solvent: 50 parts of deionized water.

[0041] Example 5: Antioxidant long-acting formula of the present invention Dyeing ingredients: 11 parts indigo powder, 9 parts henna powder, 4 parts coffee powder (crushed to less than 200 mesh) Toxin removal ingredients: 4 parts corn starch, 1.5 parts activated carbon Antioxidant ingredients: 2 parts of tea polyphenols, 1 part of pomegranate extract, 1 part of vitamin C (dissolved in deionized water, the temperature is controlled at 30-40℃ and cooled) Moisturizing ingredients: 3 parts jojoba oil, 1 part mineral oil (with 0.5% natural emulsifier) Alkaline regulator: 0.8 parts of sodium silicate (dissolved in warm water) Solvent: 48 parts of deionized water.

[0042] Summary of results Through testing and comparison of different embodiments, the present invention achieves the improvement of detoxification, anti-oxidation and moisturizing through the ratio of different ingredients, processing methods and the addition of new ingredients (such as vitamin C, pomegranate extract, natural emulsifier and sodium silicate, etc.), prolongs the durability of the dyeing effect, and provides strong verification for the innovation and practicality of the present invention.

[0043] Comparative experiment 1: dyeing uniformity and durability test Experimental purpose: To verify the effect of the hair dye of the present invention on dyeing uniformity and durability.

[0044] Experimental setup Experimental group setting (present invention) Experimental group: The hair dye formula of the present invention was used, wherein the dyeing components were crushed to less than 200 meshes, an alkaline regulator was added and homogenization treatment was performed to ensure the uniformity and durability of the dyeing components.

[0045] Control group setting Control group 1: conventional hair dye formula without pulverization and homogenization, and without alkaline conditioner.

[0046] Control group 2: The dyeing components were crushed to less than 100 mesh without homogenization and without alkaline conditioning agent.

[0047] Control group 3: The dyeing components were crushed to less than 200 mesh and homogenized, but without alkaline conditioning agent.

[0048] Experimental procedures Dyeing White or light-colored hair samples were divided into four groups, each of which was treated with a different formulation of hair dye (experimental group and three control groups).

[0049] Apply the hair dye evenly on the hair sample, leave it on for 30 minutes and then wash it off.

[0050] Dyeing uniformity measurement Use a colorimeter to measure the color difference values ​​of different areas on the dyed hair sample to evaluate the uniformity of dyeing.

[0051] Dyeing persistence measurement The dyed hair samples were subjected to 5 washing cycles, each time using the same concentration of standard shampoo and rinsed out.

[0052] After each wash, a colorimeter was used to measure the color difference before and after dyeing to evaluate the durability of dyeing.

[0053] The comparative experimental data are shown in Table 1: Table 1 Dyeing uniformity and durability test data table From the data in Table 1, we can get: Dyeing uniformity: The initial color difference uniformity of the experimental group was lower than that of all the control groups, especially control group 1 and control group 2, indicating that the dyeing effect of the experimental group was more uniform, which shows that through the fine pulverization and homogenization treatment of the present invention, the dyeing components can be more evenly distributed on the hair surface, ensuring a consistent dyeing effect.

[0054] Dyeing Permanence: After 1, 3 and 5 washes, the color difference of the experimental group changed less, with ΔE of 1.5, 2.0 and 2.3 respectively, showing excellent coloring durability. In contrast, the control group 1 had a ΔE of 6.7 after 5 washes, which was significantly faded, while the control groups 2 and 3 also showed varying degrees of fading. This shows that the hair dye formula of the present invention effectively improves the coloring durability and reduces the color loss of the hair dye during the washing process by adding an alkaline regulator and homogenizing treatment.

[0055] Comparative experiment 2: Detoxification effect test Experimental purpose: To verify the effectiveness of the hair dye of the present invention in removing impurities, oils and heavy metals from the hair and scalp.

[0056] Experimental setup Experimental group setting (present invention) Experimental group: The hair dye formula of the present invention was used, wherein the detoxifying ingredients (corn starch, activated carbon and bentonite) were finely ground to less than 200 mesh and uniformly mixed to ensure optimal adsorption of the detoxifying ingredients.

[0057] Control group setting Control group 1 (no detoxifying ingredients): The hair dye does not contain any detoxifying ingredients, but only contains coloring, moisturizing and antioxidant ingredients.

[0058] Control group 2 (non-finely pulverized and without bentonite): conventional detoxifying ingredients (corn starch and activated charcoal) were used without finely pulverized treatment and without the addition of bentonite.

[0059] Control group 3 (only crushed to coarse powder and not uniformly mixed): corn starch, activated carbon and bentonite were crushed to less than 100 mesh, but not uniformly mixed.

[0060] Experimental procedures Pollution treatment Prepare the same number of hair bundles and apply solutions containing heavy metals (such as copper ions), oil and other impurities to them respectively to simulate the pollution environment of the scalp and hair before dyeing.

[0061] Detoxification Apply the hair dye from the experimental group and each control group to the contaminated hair tresses, ensuring even coverage.

[0062] Let sit for 20 minutes to allow the detoxifying ingredients to absorb pollutants.

[0063] Cleaning and testing Each set of hair tresses was thoroughly rinsed with deionized water to remove the hair dye and adhering contaminants.

[0064] After washing, the hair strands were analyzed for heavy metal residues (such as copper ion concentration, by atomic absorption spectroscopy) and oil residues (by infrared spectroscopy).

[0065] The comparative experimental data are shown in Table 2: Table 2 Detoxification effect test data table From the data in Table 2, we can get: Heavy metal removal effect: The experimental group performed best in terms of heavy metal residues, which was only 0.5 mg / kg. In comparison, the heavy metal residues in the control group 1 were the highest at 2.7 mg / kg, while the heavy metal residues in the control groups 2 and 3 were 1.9 mg / kg and 1.3 mg / kg, respectively. This shows that the fine pulverization process and uniformly distributed detoxification components of the hair dye of the present invention are superior to traditional hair dyes in adsorbing heavy metals.

[0066] Grease removal effect: The residual oil content of the experimental group was 1.2%, which was significantly lower than that of all the control groups. The residual oil content of control group 1, control group 2 and control group 3 were 4.6%, 3.8% and 2.9% respectively. This shows that the present invention improves the adsorption capacity of the detoxifying ingredients through fine crushing and uniform dispersion treatment, can effectively remove oil from the scalp and hair, and ensure the cleaning effect before dyeing the hair.

[0067] Comparative experiment 3: Antioxidant and moisturizing effect test Experimental purpose: To verify the superiority of the hair dye of the present invention in terms of anti-oxidation and moisturizing effects.

[0068] Experimental setup Experimental group setting (present invention) Experimental group: using the hair dye formula of the present invention, the antioxidant ingredients (tea polyphenols, vitamin C, pomegranate extract) were dissolved at 30-40°C and cooled to room temperature, and the moisturizing ingredients (jojoba oil and mineral oil) were emulsified at low temperature and homogenized.

[0069] Control group setting Control group 1 (no antioxidant and moisturizing treatment): no antioxidant ingredients were added, only basic coloring and moisturizing ingredients were included.

[0070] Control group 2 (antioxidant ingredients were not dissolved under temperature control, and moisturizing ingredients were not emulsified): the antioxidant ingredients were not dissolved under temperature control and were directly added to the hair dye, and the moisturizing ingredients were not emulsified at low temperature.

[0071] Control group 3 (temperature-controlled dissolution of antioxidant ingredients, but no moisturizing emulsification treatment): The antioxidant ingredients were dissolved at 30-40°C and cooled to room temperature, and the moisturizing ingredients were not emulsified.

[0072] Experimental procedures Antioxidant effect test Sample storage: The hair dyes in the experimental and control groups were placed in an environment with ultraviolet light at 40°C to simulate long-term storage conditions.

[0073] Oxidation testing: Samples are taken every 10 days to test the content of antioxidant components (such as determined by redox potential) and the degradation of antioxidant components is recorded within 30 days.

[0074] Moisturizing effect test Hair dye treatment: Apply the hair dyes of the experimental group and each control group to the same number of hair bundles, leave them for 30 minutes and then wash them off.

[0075] Moisture retention test: Place the dyed hair sample in a constant temperature and humidity environment, and record the moisture content of the hair on the 1st, 7th and 14th day after dyeing using the weight loss method or a moisture meter to evaluate the moisturizing effect of the hair dye.

[0076] The comparative experimental data are shown in Table 3: Table 3 Antioxidant and moisturizing effect test data From the data in Table 3, we can get: Antioxidant Effect The degradation rate of antioxidant components in the experimental group was only 12.0%, which was significantly lower than that in all control groups, especially control group 1 and control group 2, indicating that the present invention has obvious advantages in temperature-controlled dissolution treatment of antioxidant components, and can effectively protect the activity of antioxidant components and prolong their effectiveness.

[0077] Moisturizing effect The moisture content of the experimental group was higher than that of all the control groups 1 day, 7 days and 14 days after dyeing. In particular, on the 14th day, the moisture retention rate of the experimental group was 11.5%, while that of the control group 1 was only 4.5%, and that of the control groups 2 and 3 were 7.6% and 8.4%, respectively. This indicates that the low-temperature emulsification and homogenization treatment of the moisturizing ingredients in the present invention significantly improves the moisturizing effect, keeps the hair moisturized for a long time after dyeing, and avoids the problem of drying out after dyeing.

[0078] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A natural hair dye with toxin removal and oxidation functions, characterized in that: The hair dye comprises the following components in parts by weight: 5-15 parts of indigo powder; 5-15 parts of henna powder; 3-8 portions of coffee powder; 2-8 parts corn starch; 1 to 3 parts of activated carbon; 1-3 parts of bentonite; 1-3 parts of tea polyphenols; Vitamin C 0.5-2 parts; 1-2 parts of pomegranate extract; 2-5 parts coconut oil or jojoba oil; 1-3 parts of mineral oil; 2-5 portions of aloe vera gel; 0.5-2 parts of sodium silicate; 40-60 parts of deionized water.

2. A method for preparing a natural hair dye having toxin removal and oxidation functions, characterized in that: Using the natural hair dye with toxin removal and oxidation functions as claimed in claim 1 comprises the following steps: Pre-treat the dyeing ingredients, detoxifying ingredients, antioxidant ingredients, moisturizing ingredients, alkaline conditioners and solvents; Mixing the ingredients in a predetermined order to form a uniform paste hair dye base; Homogenization is performed to obtain a fine, even hair dye; Cool the homogenized hair dye and store in an airtight container.

3. The method for preparing a natural hair dye having toxin removal and oxidation functions according to claim 2, characterized in that: The pretreatment of the dyeing component comprises the following steps: Grind indigo powder, henna powder and coffee powder separately to less than 200 mesh to obtain fine powder; The obtained fine powder is sieved to ensure uniform particle size.

4. The method for preparing a natural hair dye having toxin removal and oxidation functions according to claim 2, characterized in that: The pretreatment of the detoxified component comprises the following steps: Grind corn starch, activated carbon and bentonite to less than 200 mesh respectively; The crushed ingredients are mixed well to ensure uniform distribution of the adsorptive ingredients.

5. The method for preparing a natural hair dye having toxin removal and oxidation functions according to claim 2, characterized in that: The pretreatment of the antioxidant component comprises the following steps: Dissolve tea polyphenols, vitamin C and pomegranate extract in deionized water, and control the dissolving temperature at 30-40°C; The obtained solution was cooled to room temperature to form a uniform antioxidant solution for later use.

6. The method for preparing a natural hair dye having toxin removal and oxidation functions according to claim 2, characterized in that: The pretreatment of the moisturizing component comprises the following steps: Mixing coconut oil or jojoba oil with mineral oil at a low temperature below 40° C. to obtain a mixture; 0.5% of a natural emulsifier was added to the mixture to form a stable oil phase.

7. The method for preparing a natural hair dye having toxin removal and oxidation functions according to claim 2, characterized in that: The pretreatment of the alkaline conditioning agent comprises the following steps: Dissolve sodium silicate in a small amount of warm water, control the water temperature at 30°C, and stir until it is completely dissolved to form an alkaline solution for use.

8. The method for preparing a natural hair dye having toxin removal and oxidation functions according to claim 2, characterized in that: The step of mixing the ingredients comprises the following steps: Add the dyeing ingredients, detoxifying ingredients and antioxidant solution to the mixing container and stir for 5 minutes using a low speed stirrer; Slowly add the oil phase and continue stirring for 10 minutes to ensure that the oil phase and other ingredients are evenly blended; Add alkaline solution and stir for 5 minutes to provide a slightly alkaline environment; Finally, add aloe vera gel and deionized water and stir for 10 minutes to obtain a uniform paste-like hair dye base.

9. The method for preparing a natural hair dye having toxin removal and oxidation functions according to claim 2, characterized in that: The homogenization step comprises the following steps: Transfer the paste hair dye base to a homogenizer; Homogenize at 4000 rpm for 2-3 minutes to obtain a fine, uniform hair dye texture.

10. The method for preparing a natural hair dye having toxin removal and oxidation functions according to claim 2, characterized in that: The cooling and storing steps include the following steps: Cool the homogenized hair dye to room temperature to maintain the activity of the antioxidant ingredients; Transfer the cooled hair dye to an airtight container and store in a cool, dry place.

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