A protein hair dye cream and its preparation method

Abstract

The present application discloses a protein hair dye cream and a preparation method thereof. The protein hair dye cream is composed of the following components in parts by weight: Dyeing agent: cetearyl alcohol; propylene glycol; dye; cetearyl polyether-25; pH regulator; chelating agent; glyceryl stearate; antioxidant; essence; first hair conditioner; protein adjuvant and water; Developer: cetearyl alcohol; propylene glycol; cetearyl polyether-25; chelating agent; glyceryl stearate; hydrogen peroxide; stabilizer; second hair conditioner; buffer and water. Among them, the dye is a composition of p-phenylenediamine and natural plant extracts. The protein hair dye cream prepared in the present application has little damage to the scalp and hair and has a good dyeing effect.

Description

Technical Field

[0001] This application relates to the field of hair dye creams, and particularly to a protein hair dye cream and its preparation method. Background Art

[0002] Since the hair dye components in hair dye creams contain various toxic components, they will harm human health to a certain extent. Therefore, in the selection of raw materials and manufacturing processes, more and more manufacturers are beginning to pay attention to environmental protection factors. Using natural plant pigments instead of chemical substances as the hair dye components of hair dye creams can reduce damage to the scalp and do not pollute the environment, which is a commonly used method now.

[0003] However, due to problems such as easy degradation and poor penetration of natural plant pigments, it will affect the dyeing durability in actual use. Summary of the Invention

[0004] In order to solve the problem of dyeing durability of hair dye creams, this application provides a protein hair dye cream and its preparation method.

[0005] In a first aspect, a protein hair dye cream, composed of a dyeing agent and a developer, consists of the following components in terms of weight percentage:

[0006] Dyeing agent:

[0007] Cetearyl alcohol 4 - 10%;

[0008] Propylene glycol 2 - 4%;

[0009] Dye 2 - 5%;

[0010] Cetearyl alcohol polyether - 25 1 - 4%;

[0011] pH regulator 1 - 4%;

[0012] Chelating agent 1 - 4%;

[0013] Glycerol stearate 1 - 4%;

[0014] Antioxidant 1 - 2%;

[0015] Fragrance 0.2 - 0.8%;

[0016] First hair conditioner 0.1 - 2%;

[0017] Protein adjuvant 0.5 - 2%;

[0018] The balance is water;

[0019] Developer:

[0020] Cetearyl alcohol 2 - 6%;

[0021] Propylene glycol 2 - 4%;

[0022] Ceteareth - 25 1 - 4%;

[0023] Chelating agent 1 - 4%;

[0024] Glyceryl stearate 1 - 4%;

[0025] Hydrogen peroxide 3 - 12%;

[0026] Stabilizer 0.01 - 1%;

[0027] Conditioner for second application 0.1 - 2%;

[0028] Buffer 0.01 - 1%;

[0029] The balance is water;

[0030] Wherein, the dye is a composition of p - phenylenediamine and natural plant extracts.

[0031] Typically but not limited to, the pH regulator can be a composition of one or more of ammonia water, monoethanolamine, and triethanolamine; the chelating agent can be one of pentasodium pentetate, hydroxyethanediphosphonic acid, tetrasodium hydroxyethanediphosphonate, EDTA - 2Na, EDTA - 3Na, and EDTA - 4Na; the antioxidant can be a composition of one or more of erythorbic acid (iso - Vc), ascorbic acid (Vc), sodium erythorbate, sodium sulfite, sodium metabisulfite, sodium dithionite, and mercaptoacetic acid; the buffer is disodium hydrogen phosphate.

[0032] By adopting the above - mentioned technical solution, the hair dye cream is divided into a dyeing agent and a developing agent. First, the hair is penetrated and dyed by the dyeing agent containing natural plant extracts, and then the developed agent is used to fix the color of the dyed hair, thereby improving the dyeing effect, repairing the hair and scalp, and reducing the damage caused by hair dyeing to the skin and hair.

[0033] In hair dyes, adding protein auxiliaries can form various binding forms such as encapsulation, adsorption, and bonding between the protein and the dye. The main substance of human hair is keratin, and the protein auxiliaries can form bonds with keratin, thus playing a "bridge" role to lock the dye on the hair and improve the hair dyeing effect. In addition, using a pH regulator as an alkaline substance to open the hair cuticles facilitates the formation of bonds between the protein auxiliaries and the keratin structure inside the hair, enabling the dye to enter the hair interior and improving the dye permeability and dyeing effect. Adding substances such as cetearyl alcohol, glyceryl stearate, chelating agents, and antioxidants can reduce the free radicals generated during hair dyeing, reduce the damage to hair and scalp, improve the dispersion uniformity and adhesion effect of the dye and protein auxiliaries in the system, enhance the binding effect between the protein auxiliaries and the dye, thereby improving the dyeing effect, and also has wetting and lubricating effects, improving the fluidity and spreadability of the hair dye during use, enhancing the adhesion effect and dispersion uniformity of the dye and protein auxiliaries on the hair, and thus improving the dyeing effect. Perfumes and hair conditioners can neutralize the bad odors in the pH regulator and the dyeing agent, improve the hair dyeing experience, and can synergistically repair damaged hair and scalp with components such as antioxidants and chelating agents.

[0034] Preferably, in the dyeing agent, the composition of the dye is a composition of p-phenylenediamine and natural plant extracts, the weight ratio of p-phenylenediamine to natural plant extracts is 1:(5 - 15), and the natural plant extract is one of anthocyanins, aloe extract, hydrolyzed procyanidins, and Hibiscus sabdariffa extract.

[0035] By adopting the above technical solutions, using a composition of natural plant extracts and p-phenylenediamine as the dye, the natural plant extracts are natural substances, with less damage to the skin and hair. The dyed hair recovers faster, has better gloss, and brighter colors. Among them, anthocyanins have good durability, can make the dyeing effect more persistent, and there are multiple active hydroxyl groups on the surface of anthocyanin monomers, which can form bonds with proteins, thereby improving the binding fastness with hair and enhancing the hair dyeing effect. Aloe extract has wetting and moisturizing effects. When used synergistically with components such as cetearyl alcohol and propylene glycol, it can improve the dispersion phase uniformity of the hair dye. In addition, aloe extract itself has a certain adhesiveness, so it can produce a better hair dyeing effect. Moreover, aloe extract is easily absorbed by hair and has good permeability. Then, through protein auxiliaries, the binding fastness between aloe extract and hair is improved, thereby achieving a better hair dyeing effect.

[0036] Preferably, the protein auxiliary is a composition of one or more of hydrolyzed silk protein, hydrolyzed keratin, hydrolyzed collagen, or hydrolyzed wheat protein.

[0037] By adopting the above technical solutions, hydrolyzed silk protein is also a natural high-molecular protein. Bonding with keratin can form a unique spatial structure, and there are many active groups on the surface of hydrolyzed silk protein, which also has a strong binding fastness with natural plant extracts, thereby improving the permeability of the hair dye in the hair and its stability in the hair. In addition, due to the excellent mechanical properties and antibacterial effect of hydrolyzed silk protein, it can protect the hair dye, reduce the degradation of the hair dye, and thus improve the durability of the hair cream. Moreover, hydrolyzed silk protein also has strong moisture absorption and heat preservation properties. Hydrolyzed silk protein can also produce amino acid molecules such as lysine and serine. When used in combination with components such as propylene glycol and cetearyl alcohol, it can repair damaged hair and play a protective role, thereby reducing the harm caused by hair dyeing to the human body. Similarly, using hydrolyzed keratin as a protein adjuvant has strong permeability and binds well with keratin in the hair, thus improving the hair dyeing effect.

[0038] Preferably, in the dyeing agent, the protein adjuvant is a composition of hydrolyzed silk protein and serum protein, and the weight ratio of the hydrolyzed silk protein to the serum protein is 1:(0.5 - 4).

[0039] By adopting the above technical solutions, serum protein is a natural transport and storage protein, which can quickly penetrate into the hair interior and bind with keratin to achieve the effect of fixing the dye. When serum protein and hydrolyzed silk protein are used together, serum protein, hydrolyzed silk protein, and keratin can form a more complex spatial structure, thereby improving the durability and permeability of the dye. And because the serine content in both serum protein and hydrolyzed silk protein is relatively high, serine can play a role in moisturizing, enhancing color, and repairing, so when used together, it can synergistically improve the hair dyeing effect.

[0040] The permeability of serum protein is very strong. When used alone, it is easily absorbed quickly, resulting in a short action time and affecting the durability of dyeing. And the mechanical properties of serum protein are poor, which easily affects the binding fastness between the dye and the hair. While hydrolyzed silk protein has excellent mechanical properties. Therefore, when serum protein and hydrolyzed silk protein are used synergistically, they can synergistically improve the permeability and binding fastness of the dye, and further repair the hair.

[0041] It should be noted that when the dye contains plant extracts, for example, when the plant extract is anthocyanin, serum protein has a synergistic effect with it in dyeing. Anthocyanin and serum protein bind to each other by hydrogen bonds and van der Waals forces. And during the binding process, anthocyanin will affect the secondary structure of serum protein, thereby improving the anti-glycation and antioxidant properties of serum protein, thus increasing the action time of serum protein and anthocyanin and improving the durability of the hair dye.

[0042] Preferably, in the dyeing agent, the protein auxiliary agent is a composition of hydrolyzed silk protein and hydrolyzed collagen, and the weight ratio of the hydrolyzed silk protein to the hydrolyzed collagen is 1:(0.5 - 2).

[0043] By adopting the above technical solution, when hydrolyzed collagen acts together with hydrolyzed silk protein, hydrolyzed collagen has good ductility and adhesiveness, can cover the hair surface to form a protective film, reduce the damage of the external environment to hydrolyzed silk protein and the dye, and thus improve the durability of dyeing. Hydrolyzed collagen is also rich in various nutrients required by the skin and hair, and can further repair the damage of the scalp and hair in synergistic action with the first hair conditioner.

[0044] Preferably, in the dyeing agent, the protein auxiliary agent is a composition of hydrolyzed silk protein, hydrolyzed collagen and serum protein, and the weight ratio of the hydrolyzed silk protein, the hydrolyzed collagen and the serum protein is 1:(0.5 - 2):(0.5 - 4).

[0045] By adopting the above technical solution, when hydrolyzed silk protein, hydrolyzed collagen and serum protein are used synergistically, a three-layer protein protective layer of serum protein, hydrolyzed silk protein and hydrolyzed collagen can be formed during the hair dyeing process, and a more complex spatial structure is formed between the protective layers to provide a better protective effect. The three-layer protein also has a stronger fixing effect on the dye, and thus improves the hair dyeing effect of the hair dye.

[0046] Preferably, the weight ratio of the hydrolyzed silk protein, the hydrolyzed collagen and the serum protein is 1:1:2.

[0047] By adopting the above technical solution, the dosage of the three proteins is optimized, further improving the fixing effect and protective effect on the dye, and improving the hair dyeing effect of the hair dye.

[0048] Preferably, in the dyeing agent, the first hair conditioner is a composition of serine, lavender essential oil, polygonum multiflorum root extract and honey, and the weight ratio of the serine, the lavender essential oil, the polygonum multiflorum root extract and the honey is 1:(2 - 6):(3 - 5):(0.5 - 2).

[0049] By adopting the above technical solution, using the above components as the first hair conditioner can, on the one hand, nourish the hair and scalp, promote hair repair and growth, and improve the scalp environment, and on the other hand, can moisturize, nourish the scalp and hair, improve the gloss and flexibility of the hair, and thus improve the hair dyeing effect.

[0050] Preferably, the second hair conditioner in the developer is a composition of citric acid, polydimethylsiloxane and seabuckthorn extract, and the weight ratio of citric acid, polydimethylsiloxane and seabuckthorn extract is 1:(0.2-0.6):(0.2-0.6).

[0051] By adopting the above technical solution, the second hair conditioner in the developer adopts the above components. On the one hand, it can adjust the pH, improve the scalp environment, and make the hair with open cutin scales close again, so as to achieve the effect of repairing hair. And the natural plant extract and the protein adjuvant can better combine in the adjusted pH environment, further improving the dyeing effect; in addition, it can also cooperate with the components in the first hair conditioner to further play the role of moisturizing and nourishing.

[0052] Secondly, the present application provides a preparation method of a protein hair dye cream, which includes the following steps. The dyeing agent is prepared by the following steps:

[0053] Preparation of the aqueous phase: Take cetearyl alcohol, cetearyl alcohol polyether-25, and glyceryl stearate and mix them evenly at 80-85 °C to obtain the aqueous phase;

[0054] Preparation of the oil phase: Take propylene glycol, antioxidant, chelating agent and water and mix them evenly at 80-85 °C to obtain the oil phase;

[0055] Mixing and emulsifying: Mix and emulsify the obtained aqueous phase and oil phase to obtain the first mixture;

[0056] Refining: Cool the obtained first mixture to 20-30 °C and then add the dye and the first hair conditioner and mix them evenly to obtain the second mixture;

[0057] Preparation of the hair dye: Add essence and pH regulator to the obtained second mixture and mix them evenly to obtain the hair dye;

[0058] The developer is prepared by the following steps:

[0059] Preparation of the aqueous phase: Take cetearyl alcohol, cetearyl alcohol polyether-25, and glyceryl stearate and mix them evenly at 80-85 °C to obtain the aqueous phase;

[0060] Preparation of the oil phase: Take water, propylene glycol, chelating agent and buffer and mix them evenly at 80-85 °C to obtain the oil phase;

[0061] Preparation of the developer: Mix the aqueous phase and the oil phase evenly at 80-85 °C, then cool to 20-30 °C, and add hydrogen peroxide, stabilizer and the second hair conditioner to obtain the developer.

[0062] In summary, the present application has the following beneficial effects:

[0063] 1. Using natural plant extracts as part of the dye and used in combination with a protein adjuvant to reduce the toxic components of the hair dye cream while improving the durability and penetrability of the hair dye cream.

[0064] 2. The protein adjuvant selects hydrolyzed silk protein, serum protein, and hydrolyzed collagen, which can provide three layers of protection for the hair, improve the binding fastness between the dye and the hair, and further improve the hair dyeing effect and durability. Detailed implementation mode

[0065] The following further elaborates on this application with reference to the embodiments. Embodiment

[0066] The components and their weight parts of the dyeing agents in Embodiments 1 - 3 and Comparative Example 1 are shown in Table 1

[0067] Table 1 Components and their weight parts of the dyeing agents in Embodiments 1 - 3 and Comparative Example 1 (kg / part)

[0068] Example 1 Example 2 Example 3 Comparative Example 1 Cetearyl alcohol 7 10 4 12 Propylene glycol 3.5 4 2 0.5 Dye 3.5 5 2 6 Ceteth-25 2.5 1 4 0.5 pH regulator 2.5 4 1 6 Chelating agent 2.5 1 4 0.5 Glyceryl stearate 2.5 1 4 0.5 Antioxidant 1.5 1 2 0.5 Fragrance 0.5 0.8 0.2 1.2 First hair conditioner 1 0.1 2 4 3D protein 1.3 2 0.5 4 Water 71.7 70.1 74.3 64.3

[0069] The components and their weight parts of the developers in Embodiments 1 - 3 and Comparative Example 1 are shown in Table 2

[0070] Table 2 Components and their weight parts of the developers in Embodiments 1 - 3 and Comparative Example 1 (kg / part)

[0071] Example 1 Example 2 Example 3 Comparative Example 1 Cetearyl alcohol 4 6 2 8 Propylene glycol 3 4 2 0.5 Ceteth-25 2.5 1 4 0.5 Chelating agent 2.5 1 4 5 Glyceryl stearate 2.5 1 4 0.5 Hydrogen peroxide 7.5 12 3 16 Stabilizer 0.5 1 0.01 1.5 Second hair conditioner 1 2 0.1 4 Buffer 0.5 1 0.01 2 Water 76 71 80.88 62

[0072] Embodiment 1, a protein hair dye cream, is prepared by the following steps:

[0073] The dyeing agent is prepared by the following steps:

[0074] Preparation of the aqueous phase: Take cetearyl alcohol, cetearyl alcohol polyether - 25, and glyceryl stearate and mix them evenly at 83°C to obtain the aqueous phase;

[0075] Preparation of the oil phase: Take propylene glycol, antioxidant, chelating agent, and water and mix them evenly at 83°C to obtain the oil phase;

[0076] Mixing and emulsifying: Mix the obtained aqueous phase and oil phase to obtain a first mixture;

[0077] Refining: Cool the obtained first mixture to 25°C and then add the dye and the first hair conditioner and mix them evenly to obtain a second mixture;

[0078] Preparation of the hair dye: Add the obtained second mixture to the essence and pH regulator and mix them evenly to obtain the hair dye;

[0079] The developer is prepared by the following steps:

[0080] Preparation of the aqueous phase: Cetearyl alcohol, cetearyl alcohol polyether-25, and glyceryl stearate were mixed evenly at 83°C to obtain the aqueous phase;

[0081] Preparation of the oil phase: Water, propylene glycol, chelating agent, and buffer were mixed evenly at 83°C to obtain the oil phase;

[0082] Preparation of the developer: The aqueous phase and the oil phase were mixed evenly at 83°C, then cooled to 25°C, and hydrogen peroxide, stabilizer, and the second hair conditioning agent were added to obtain the developer.

[0083] Among them, the pH regulator in the preparation of the hair dye is ammonia water, the chelating agent is pentasodium pentetate, the antioxidant is erythorbic acid. Among them, in the refining step, the dye is obtained by mixing p-phenylenediamine and anthocyanin in a weight ratio of 1:10; the protein adjuvant is obtained by mixing hydrolyzed silk protein, hydrolyzed collagen, and serum protein in a weight ratio of 1:1:1; the first hair conditioning agent is obtained by mixing serine, lavender essential oil, polygonum multiflorum root extract, and honey in a weight ratio of 1:4:4:1.3. In the preparation of the developer, the second hair conditioning agent is obtained by mixing citric acid, polydimethylsiloxane, and seabuckthorn extract, and the weight ratio of citric acid, polydimethylsiloxane, and seabuckthorn extract is 1:0.4:0.4; the chelating agent is pentasodium pentetate; the stabilizer is sodium pyrophosphate; the buffer is disodium hydrogen phosphate.

[0084] Hair dyeing method: First, wash and dry the hair, evenly apply the coloring agent on the hair, keep it at 30°C for 40 minutes, then evenly apply the developer on the hair, keep it at 30°C for 20 minutes, and then wash and dry the hair.

[0085] Example 2, a protein hair cream, is prepared by the following steps:

[0086] The coloring agent is prepared by the following steps:

[0087] Preparation of the aqueous phase: Cetearyl alcohol, cetearyl alcohol polyether-25, and glyceryl stearate were mixed evenly at 80°C to obtain the aqueous phase;

[0088] Preparation of the oil phase: Propylene glycol, antioxidant, chelating agent, and water were mixed evenly at 85°C to obtain the oil phase;

[0089] Mixing and emulsifying: The obtained aqueous phase and oil phase were mixed and emulsified to obtain the first mixture;

[0090] Refining: The obtained first mixture was cooled to 30°C, and then the dye and the first hair conditioning agent were added and mixed evenly to obtain the second mixture;

[0091] Preparation of the hair dye: The obtained second mixture was added with essence and pH regulator and mixed evenly to obtain the hair dye;

[0092] The developer is prepared by the following steps:

[0093] Preparation of the aqueous phase: Cetearyl alcohol, cetearyl alcohol polyether-25, and glyceryl stearate were mixed evenly at 80 °C to obtain the aqueous phase;

[0094] Preparation of the oil phase: Water, propylene glycol, chelating agent, and buffer were mixed evenly at 85 °C to obtain the oil phase;

[0095] Preparation of the developer: The aqueous phase and the oil phase were mixed evenly at 80 °C, then cooled to 30 °C, and hydrogen peroxide, stabilizer, and the second hair conditioning agent were added to obtain the developer.

[0096] Among them, the pH regulator is ammonia water, the chelating agent is hydroxyethanediphosphonic acid, and the antioxidant is isoascorbic acid during the preparation of the hair dye. During the refining step, the dye is obtained by mixing p-phenylenediamine and anthocyanin in a weight ratio of 1:15; the protein adjuvant is obtained by mixing hydrolyzed silk protein, hydrolyzed collagen, and serum protein in a weight ratio of 1:2:0.5; the first hair conditioning agent is obtained by mixing serine, lavender essential oil, polygonum multiflorum root extract, and honey in a weight ratio of 1:6:3:0.5. During the preparation of the developer, the second hair conditioning agent is obtained by mixing citric acid, polydimethylsiloxane, and seabuckthorn extract, and the weight ratio of the citric acid, polydimethylsiloxane, and seabuckthorn extract is 1:0.6:0.2; the chelating agent is hydroxyethanediphosphonic acid; the stabilizer is sodium stannate; the buffer is sodium dihydrogen phosphate.

[0097] Hair dyeing method: First, wash and dry the hair, evenly apply the coloring agent on the hair, keep it at 30 °C for 40 min, then evenly apply the developer on the hair, keep it at 30 °C for 20 min, and then wash and dry the hair.

[0098] Example 3, A protein hair cream is prepared by the following steps:

[0099] The coloring agent is prepared by the following steps:

[0100] Preparation of the aqueous phase: Cetearyl alcohol, cetearyl alcohol polyether-25, and glyceryl stearate were mixed evenly at 85 °C to obtain the aqueous phase;

[0101] Preparation of the oil phase: Propylene glycol, antioxidant, chelating agent, and water were mixed evenly at 80 °C to obtain the oil phase;

[0102] Mixing and emulsifying: The obtained aqueous phase and oil phase were mixed and emulsified to obtain the first mixture;

[0103] Refining: The obtained first mixture was cooled to 20 °C, and then the dye and the first hair conditioning agent were added and mixed evenly to obtain the second mixture;

[0104] Preparation of the hair dye: The obtained second mixture was added with essence and pH regulator and mixed evenly to obtain the hair dye;

[0105] The developer is prepared by the following steps:

[0106] Preparation of the aqueous phase: Cetearyl alcohol, cetearyl alcohol polyether-25, and glyceryl stearate are taken and mixed at 85°C to obtain the aqueous phase;

[0107] Preparation of the oil phase: Water, propylene glycol, a chelating agent, and a buffering agent are taken and mixed at 80°C to obtain the oil phase;

[0108] Preparation of the developer: The aqueous phase and the oil phase are mixed at 85°C, then cooled to 20°C, and hydrogen peroxide, a stabilizer, and a second hair conditioning agent are added to obtain the developer.

[0109] Among them, in the process of preparing the hair dye, the pH regulator is ammonia water, the chelating agent is hydroxyethanediphosphonic acid, the antioxidant is isoascorbic acid. In the refining step, the dye is obtained by mixing p-phenylenediamine and anthocyanin in a weight ratio of 1:5; the protein aid is obtained by mixing hydrolyzed silk protein, hydrolyzed collagen, and serum protein in a weight ratio of 1:0.5:4; the first hair conditioning agent is obtained by mixing serine, lavender essential oil, polygonum multiflorum root extract, and honey in a weight ratio of 1:2:5:2. In the process of preparing the developer, the second hair conditioning agent is obtained by mixing citric acid, polydimethylsiloxane, and seabuckthorn extract, and the weight ratio of citric acid, polydimethylsiloxane, and seabuckthorn extract is 1:0.2:0.6; the chelating agent is hydroxyethanediphosphonic acid; the stabilizer is hydroxyquinoline sulfate; the buffering agent is sodium dihydrogen phosphate.

[0110] Hair dyeing method: First, wash and dry the hair, evenly apply the coloring agent on the hair, keep it at 30°C for 40 minutes, then evenly apply the developer on the hair, keep it at 30°C for 20 minutes, and then wash and dry the hair.

[0111] Example 4, a protein hair coloring cream, which is different from Example 2 in that in the protein aid, the protein aid is obtained by mixing hydrolyzed silk protein and serum protein in a weight ratio of 1:0.5.

[0112] Example 5, a protein hair coloring cream, which is different from Example 3 in that in the protein aid, the protein aid is obtained by mixing hydrolyzed silk protein and serum protein in a weight ratio of 1:4.

[0113] Example 6, a protein hair coloring cream, which is different from Example 2 in that the protein aid is obtained by mixing hydrolyzed silk protein and hydrolyzed collagen in a weight ratio of 1:2.

[0114] Example 7, a protein hair coloring cream, which is different from Example 3 in that the protein aid is obtained by mixing hydrolyzed silk protein and hydrolyzed collagen in a weight ratio of 1:0.5.

[0115] Example 8. A protein hair dyeing cream, which is different from Example 1 in that in the protein adjuvant, serum protein and hydrolyzed collagen are replaced by an equal amount of hydrolyzed silk protein.

[0116] Example 9. A protein hair dyeing cream, which is different from Example 1 in that both serum protein and hydrolyzed collagen are replaced by an equal amount of soy protein.

[0117] Example 10. A protein hair dyeing cream, which is different from Example 1 in that serum protein is replaced by an equal amount of soy protein.

[0118] Example 11. A protein hair dyeing cream, which is different from Example 1 in that the first hair conditioner is replaced by an equal amount of mineral oil.

[0119] Example 12. A protein hair dyeing cream, which is different from Example 1 in that the second hair conditioner is replaced by an equal amount of mineral oil.

[0120] Example 13. A protein hair dyeing cream, which is different from Example 1 in that in the protein adjuvant, serum protein, hydrolyzed collagen and hydrolyzed silk protein are replaced by an equal amount of hydrolyzed keratin.

[0121] Comparative Example

[0122] Comparative Example 1. A protein hair dyeing cream, which is different from the Example in that the ratio of each component of the hair dye and the developer is different.

[0123] Comparative Example 2. A plant hair dye, which is prepared by the following steps:

[0124] (1) Dissolve sodium carboxymethylcellulose in deionized water, add L-cysteine, adjust the pH to 9 with an appropriate amount of triethanolamine, and finally add preservatives and flavorings;

[0125] (2) Dissolve gallnut pigment solution and sodium carboxymethylcellulose in deionized water, heat to 80 °C, add 1618 alcohol, olive oil and monoglyceride under the stirring of a homogenizer, homogenize for 5 min, then cool to about 35 °C - 45 °C and add preservatives and flavorings;

[0126] (3) Dissolve xanthan gum in deionized water, add ferrous chloride, water-soluble lubrajel oil, glycerol, vitamin C and propylene glycol respectively, homogenize for 5 min, then add preservatives and flavorings and stir evenly.

[0127] Hair dyeing method: First wash and dry the hair, then evenly apply the softener on the hair, keep it at 30 °C for 20 min, then evenly apply the colorant on the hair, keep it at 30 °C for 20 min, and finally evenly apply the developer on the hair, keep it at 30 °C for 20 min, and then wash and dry the hair.

[0128] Among them, based on 100% of the total weight percentage, the softener comprises the following components in weight percentages: sodium carboxymethylcellulose 1%, L-cysteine 0.6%, triethanolamine, preservative 0.01%, essence 0.6% and the balance deionized water; based on 100% of the total weight percentage, the colorant comprises the following components in weight percentages: gallnut pigment solution 10%, sodium carboxymethylcellulose 0.5%, cetearyl alcohol 1.2%, olive oil 1%, monoglyceride 2%, preservative 0.01%, essence 0.5% and the balance deionized water; based on 100% of the total weight percentage, the developer comprises the following components in weight percentages: xanthan gum 1%, ferrous chloride 1.5%, water-soluble lubrajel oil 2%, glycerol 4%, vitamin C 1.5%, propylene glycol 2%, preservative 0.01%, essence 0.6% and the balance deionized water.

[0129] Comparative Example 3, a protein hair dye cream, which is different from Example 1 in that the natural plant extract is replaced with an equal amount of p-phenylenediamine.

[0130] Performance detection test

[0131] The hair after hair dyeing in Examples 1-13 and Comparative Examples 1-3 was subjected to performance testing.

[0132] Test 1: Color fastness test: The dyed hair was placed in an aqueous solution containing 5% shampoo, and then placed on a vortex shaker, and rotated at a controlled speed of 40 r / min. The results are shown in Table 3.

[0133] Test 2: Skin irritation test: Four healthy young adult rabbits (two males and two females) with a body weight of not less than 2 kg were selected.

[0134] One day before the experiment, the experimental rabbits were fixed manually, and the hair on both sides of the spine was cut off (about 10×15 cm), which served as the experimental and observation sites (one side of the observation site was ensured to have healthy and intact skin, and a "#" shaped wound was made on one side of the experimental site with a small knife).

[0135] On the day of the experiment, the hair dye was applied to the shaved area and kept at 30°C for 40 min, and then the developer was evenly applied to the shaved area and kept at 30°C for 20 min. A breathable dressing of 25×25 mm was applied to the area where the hair dye cream was applied, the outer layer of the dressing was wrapped with gauze, and the dressing and gauze were fixed with a bandage for 4 h. After the contact period ended, the bandage, gauze, and dressing were removed in sequence, the contact area was marked, and it was washed and dried with warm water.

[0136] Taking 0.9% sodium chloride injection as the control sample, a gauze block dropped with 0.5 g of 0.9% sodium chloride injection was applied to the control area, and the application time and observation time were the same as those of the experimental group.

[0137] Record the conditions of each contact site at 1 h, 24 h, and 48 h after removing the dressing.

[0138] Score according to the GB7919 scoring standard, and the results are as described in Table 4.

[0139] Table 3 Color fastness test results of Examples 1-13 and Comparative Examples 1-3

[0140]

[0141]

[0142] Table 4 Skin irritation test results of Examples 1-13 and Comparative Examples 1-3

[0143]

[0144] Combined with Examples 1-3 and Comparative Examples 1-2 and in combination with Tables 3-4, it can be seen that the hair dye cream prepared in this application has good coloring effect, is not easy to fade, and has less skin irritation. The reason is that: in this application, natural plant extracts are used to replace most of the chemical dyes, and the dyes are strengthened and protected by hydrolyzed silk protein, serum protein, and hydrolyzed collagen, thereby improving the durability and hair dyeing effect of the hair dye cream. In addition, there is a complex synergistic effect among the components of this application. From the experimental results, it can be seen that the hair dyeing effect under the component ratio of Comparative Example 1 is much weaker than that of Examples 1-3.

[0145] Combined with Example 1, Examples 4-8 and in combination with Tables 3-4, it can be seen that the protein auxiliary agent is obtained by compounding hydrolyzed silk protein, serum protein, and hydrolyzed collagen, and when the weight ratio of the three is 1:1:2, the obtained hair dye cream has the best hair dyeing durability and hair dyeing effect. The reason is that: when hydrolyzed silk protein, hydrolyzed collagen, and serum protein are used synergistically, a three-layer protein protective layer of serum protein, hydrolyzed silk protein, and hydrolyzed collagen can be formed during the hair dyeing process, and a more complex spatial structure is formed between the protective layers to provide a better protective effect. The fixing effect of the three-layer protein on the dye is also stronger, thereby improving the hair dyeing effect of the hair dye.

[0146] Combined with Example 1, Examples 9-10 and in combination with Tables 3-4, it can be seen that the durability of the hair dye cream obtained by compounding soybean protein and hydrolyzed silk protein decreases. The reason is that compared with serum protein, the highest content in soybean protein is lysine, which mainly plays a role in supplementing nutrition, but has little repair effect on hair and scalp, and the protective structure formed by soybean protein and hydrolyzed silk protein, as well as the permeability of soybean protein in hair, are not as good as the synergistic effect of serum protein and hydrolyzed silk protein.

[0147] Combined with Example 1, Examples 11-12 and Table 3-4, it can be seen that the protein hair dye cream using the first hair conditioner and the second hair conditioner of the present application has better effects. The reason is that the first hair conditioner and the second hair conditioner of the present application not only have a synergistic effect with the protein auxiliary agent in terms of components, but also the usage order of the first hair conditioner and the second hair conditioner is closely related to the steps of hair dyeing. By selecting different hair conditioners for different states of hair at each stage, the conditioning effect can be further improved.

[0148] Combined with Example 1 and Comparative Example 3 and Table 3-4, it can be seen that the hair dye cream of the present application causes less damage to the scalp and hair, and has a better hair dyeing effect.

[0149] Combined with Example 1, Example 8 and Example 13 and Table 3-4, it can be seen that when hydrolyzed silk protein or hydrolyzed keratin acts on the hair dye, the hair dyeing effect of the hair dye can be improved.

[0150] This specific embodiment is only an explanation of the present application, and it does not limit the present application. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A protein hair dye cream, characterized in that, It consists of a dyeing agent and a developer, and by weight percentage, it consists of the following components: Dyeing agent: Cetearyl alcohol 4 - 10%; Propylene glycol 2 - 4%; Dye 2 - 5%; Cetearyl alcohol polyether - 25 1 - 4%; pH regulator 1 - 4%; Chelating agent 1 - 4%; Glyceryl stearate 1 - 4%; Antioxidant 1 - 2%; Fragrance 0.2 - 0.8%; First hair conditioner 0.1 - 2%; Protein adjuvant 0.5 - 2%; The balance is water; Developer: Cetearyl alcohol 2 - 6%; Propylene glycol 2 - 4%; Cetearyl alcohol polyether - 25 1 - 4%; Chelating agent 1 - 4%; Glyceryl stearate 1 - 4%; Hydrogen peroxide 3 - 12%; Stabilizer 0.01 - 1%; Second hair conditioner 0.1 - 2%; Buffer 0.01 - 1%; The balance is water; Among them, the dye is a composition of p - phenylenediamine and natural plant extracts; The protein adjuvant is a composition of hydrolyzed silk protein, hydrolyzed collagen and serum protein, and the weight ratio of hydrolyzed silk protein, hydrolyzed collagen and serum protein is 1:(0.5 - 2):(0.5 - 4).

2. The protein hair dye cream according to claim 1, characterized in that, In the dyeing agent, the weight ratio of p - phenylenediamine and natural plant extracts is 1:(5 - 15), and the natural plant extract is one of anthocyanin, aloe extract, hydrolyzed procyanidin, Hibiscus schizopetalus extract.

3. The protein hair dye cream according to claim 1, wherein The weight ratio of hydrolyzed silk protein, hydrolyzed collagen and serum protein is 1:1:

2.

4. A protein hair dye cream according to claim 1, wherein In the dyeing agent, the first hair conditioner is a composition of serine, lavender essential oil, Polygonum multiflorum root extract and honey, and the weight ratio of serine, lavender essential oil, Polygonum multiflorum root extract and honey is 1:(2 - 6):(3 - 5):(0.5 - 2).

5. The protein hair dye cream according to claim 1, wherein, In the developer, the second hair conditioner is a composition of citric acid, polydimethylsiloxane and seabuckthorn extract, and the weight ratio of citric acid, polydimethylsiloxane and seabuckthorn extract is 1:(0.2 - 0.6):(0.2 - 0.6).

6. A method for preparing a protein hair dye cream according to any one of claims 1-5, characterized in that, The dyeing agent is prepared by the following steps: Preparation of the aqueous phase: Take cetearyl alcohol, cetearyl alcohol polyether - 25, and glyceryl stearate and mix them evenly at 80 - 85°C to obtain the aqueous phase; Preparation of the oil phase: Take propylene glycol, antioxidant, chelating agent and water and mix them evenly at 80 - 85°C to obtain the oil phase; Mixing and emulsifying: Mix and emulsify the obtained aqueous phase and oil phase to obtain the first mixture; Refining: Cool the obtained first mixture to 20 - 30°C and then add the dye and the first hair conditioner and mix them evenly to obtain the second mixture; Preparation of the hair dye: Add the obtained second mixture to the fragrance and pH regulator and mix them evenly to obtain the hair dye; The developer is prepared by the following steps: Preparation of the aqueous phase: Take cetearyl alcohol, cetearyl alcohol polyether - 25, and glyceryl stearate and mix them evenly at 80 - 85°C to obtain the aqueous phase; Preparation of the oil phase: Take water, propylene glycol, chelating agent and buffer and mix them evenly at 80 - 85°C to obtain the oil phase; Preparation of the developer: Mix the aqueous phase and the oil phase evenly at 80 - 85°C, then cool to 20 - 30°C, and add hydrogen peroxide, stabilizer and the second hair conditioner to obtain the developer.

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