A type of foam hair dye

Abstract

This application relates to the field of hair dye technology, and particularly to a foam-type hair dye. The foam-type hair dye includes a No. 1 dye and a No. 2 dye. The No. 1 dye includes 5-25% sodium lauryl ether sulfate, 0.1%-3% a water-soluble cationic polymer, and components such as alcohol, dyeing agent, chelating agent, and antioxidant. The No. 2 dye includes 1-10% PEG / PPG-17 / 6 copolymer, 0.5-3% a water-soluble cationic surfactant, and components such as oxidant and stabilizer. This foam-type hair dye has the advantages of good foam stability, resistance to water droplets, and good combing effect.

Description

Technical Field

[0001] This application relates to the field of hair dye technology, and in particular to a foam-type hair dye. Background Technology

[0002] Foaming hair dye is a type of hair dye product that is made into a fine foam form. Compared with traditional hair dye, it has the advantages of being easy to use, evenly colored, gentle in ingredients, and less irritating to the skin. The principle is to mix hair dye agent 1 (containing a dyeing precursor) and agent 2 (containing a solvent and an oxidant) in a certain proportion and shake well. After the mixture is fully mixed, the mixture is pumped from a non-aerosol foaming container to obtain foam, which is then evenly applied to the hair for dyeing.

[0003] Tests on commercially available foam-type hair dyes revealed that most of them tend to produce water droplets during use, exhibiting poor foam stability and resulting in poor conditioning effects such as improved combability and hair softness after dyeing.

[0004] Therefore, it is necessary to develop foam-based hair dyes with strong dyeing foam stability and good conditioning effect. Summary of the Invention

[0005] This application provides a foam-type hair dye with the advantages of good foam stability, resistance to water droplets, and good conditioning effect.

[0006] The technical solution of this application includes the following:

[0007] A foam-type hair dye, the foam-type hair dye comprising hair dye agent 1 and hair dye agent 2;

[0008] The hair dye No. 1 comprises the following components by weight percentage:

[0009] 5-25% sodium lauryl ether sulfate, 0.1-3% water-soluble cationic polymer, 5-20% alcohol, 1-12% primary pH adjuster, 1-10% primary humectant, 0.1-2% antioxidant, 0.1-1% chelating agent, 0.1-8% dye, 0.1-3% fragrance and balance water;

[0010] The hair dye No. 2 comprises the following components by weight percentage:

[0011] 1-10% PEG / PPG-17 / 6 copolymer, 0.5-3% water-soluble cationic surfactant, 0.5-3.5% stabilizer, 0-0.5% secondary pH adjuster, 1-20% secondary humectant, 3-12% oxidant, 0-0.5% chelating agent and balance water.

[0012] The foaming hair dye of this application uses anionic surfactants and water-soluble cationic polymers as the main foaming components of hair dye agent 1, combined with suitable alcohols and dyeing agents. Through hydrogen bonding with water molecules, it can transform the highly fluid free water in the liquid film into less fluid free water, while increasing the viscosity and elasticity of the liquid film, forming a surface film with moderate viscosity and elasticity, which is beneficial for obtaining foam with good stability. The presence of water-soluble cationic surfactants in hair dye agent 2, combined with suitable nonionic surfactants and oxidants, can form strong Coulomb attraction with anionic surfactants after hair dye agent 1 and hair dye agent 2 are mixed, increasing the liquid film strength, thereby improving the foam life and effectively solving the problem of foam dripping.

[0013] Furthermore, the anionic surfactant is sodium lauryl ether sulfate. Sodium lauryl ether sulfate has good foaming properties and foam stability, and when used in combination with water-soluble cationic polymers, it can form a stable foam structure and reduce foam watering.

[0014] Furthermore, the nonionic surfactant is a PEG / PPG-17 / 6 copolymer. The PEG / PPG-17 / 6 copolymer exhibits good stability and compatibility, and can synergistically enhance foam stability with water-soluble cationic surfactants.

[0015] In some embodiments, the weight ratio of hair dye agent 1 to hair dye agent 2 is 1:(1~3); mixing hair dye agent 1 and hair dye agent 2 in a suitable ratio can ensure that hair dye agent 1 and hair dye agent 2 are fully mixed and reacted to form a stable foam structure and improve the hair dyeing effect.

[0016] The pH value of hair dye agent No. 1 is 8-11, and the pH value of hair dye agent No. 2 is 2-4. The pH values ​​of hair dye agents No. 1 and No. 2 are set within this range to ensure the effectiveness and stability of the dyes.

[0017] In the foam-type hair dye of this application, hair dye agent No. 1 further comprises 1-12% of a first pH adjuster, 1-10% of a first moisturizer, 0.1-2% of an antioxidant, 0.1-1% of a chelating agent, 0.1-8% of a dye, and 0.1-3% of a fragrance. These auxiliary ingredients ensure the effectiveness and stability of the dye, provide fragrance, and enhance the user experience. Hair dye agent No. 2 further comprises 0.5-3.5% of a stabilizer, 0-0.5% of a second pH adjuster, 1-20% of a second moisturizer, and 0-0.5% of a chelating agent. The stabilizer, as a neutral substance with low water solubility, can insert into the surface adsorption layer, weakening the repulsive force between like ions, which helps increase the strength and surface viscosity of the film, slows down the drainage rate, and makes the film more stable, thereby further improving the foam stability.

[0018] In some embodiments, the stabilizer includes glyceryl stearate, PEG-100 stearate, and C 14 -C 22 At least one of the fatty alcohols, the use of the above-mentioned stabilizer has better stability and compatibility, and can effectively improve the stability of foam.

[0019] Furthermore, the C 14 -C 22 Fatty alcohols include at least one of myristol, cetyl alcohol, stearyl alcohol, and behenol. Using the above-mentioned long-chain fatty alcohols has better stability and thickening effect, which can further improve the stability of foam.

[0020] In some embodiments, the first pH adjuster is an alkaline pH adjuster; the alkaline pH adjuster includes at least one of ammonium hydroxide, ethanolamine, and ammonium chloride;

[0021] The second pH adjuster is an acidic pH adjuster; the acidic pH adjuster includes at least one of hydroxyethyl diphosphate and phosphoric acid.

[0022] In some embodiments, the water-soluble cationic polymer includes at least one of polyquaternium-10, polyquaternium-22, and polyquaternium-39.

[0023] In some embodiments, the first moisturizer and the second moisturizer each independently comprise at least one of propylene glycol, glycerin, and butylene glycol.

[0024] In some embodiments, the chelating agent includes at least one of disodium EDTA and tetrasodium EDTA.

[0025] In some embodiments, the water-soluble cationic surfactant includes at least one of cetrimonium chloride, stearyltrimethylammonium chloride, and behenyltrimethylammonium chloride.

[0026] In some embodiments, the fragrance includes at least one of floral fragrance, fruity fragrance, or compound fragrance.

[0027] This application finds that foam-type hair dyes typically add a certain amount of surfactant to produce denser foam. However, the stability of surfactants is not ideal. In addition, solvents such as ethanol and oxidants such as hydrogen peroxide contained in foam-type hair dyes can destroy foam stability, causing the foam walls to easily break and turn into water. To reduce damage to hair quality, moisturizing conditioning ingredients are also added to the formula. Some conditioning ingredients can also inhibit foaming or cause the foam to collapse rapidly. As a result, foam-type hair dyes all have the problems of unstable foam and easy water dripping. However, in order to ensure the hair dyeing effect and conditioning effect, the above-mentioned ingredients cannot be omitted. Therefore, it is necessary to develop a foam-type hair dye formula that takes into account both foam stability and conditioning effect.

[0028] This application has conducted extensive research on the factors affecting foam stability and found that although the factors affecting foam stability are complex, in foam-type hair dyes, the main factors are liquid film thickness and surface film strength. This application utilizes sodium lauryl ether sulfate and a water-soluble cationic polymer as the main foaming components of hair dye agent No. 1, combined with suitable solvents, a first pH adjuster, a first humectant, an antioxidant, a chelating agent, and a dyeing agent. Through hydrogen bonding with water molecules, it transforms the highly mobile free water in the liquid film into less mobile free water, simultaneously increasing the viscosity and elasticity of the liquid film, forming a surface film with moderate viscosity and elasticity, which is beneficial for obtaining stable foam. The presence of a water-soluble cationic surfactant in hair dye agent No. 2, combined with suitable nonionic surfactants, stabilizers, a second pH adjuster, a second humectant, and an oxidizing agent, allows it to form a strong Coulomb attraction with sodium lauryl ether sulfate after mixing with hair dye agent No. 1, increasing the liquid film strength and thus improving foam lifespan. Furthermore, the aforementioned foam hair dye has excellent conditioning effects, with post-dye combability and hair softness superior to existing hair dyes.

[0029] In some preferred embodiments, the stabilizer, as a neutral substance with low water solubility, inserts its neutral molecules into the surface adsorption layer, weakening the repulsive force between like ions. This helps to increase the strength and surface viscosity of the membrane, slows down the drainage rate, and makes the membrane more stable, thereby further improving the foam stability.

[0030] The foam-type hair dye of this application is easy to use. As an example, the hair dyeing method using the foam-type hair dye includes the following steps: mixing hair dye agent 1 and hair dye agent 2 at a weight ratio of 1:(1~3) to form foam, and then evenly applying the foam to the hair for dyeing. This method is simple to operate, convenient to use, and can fully utilize the foam stability and dyeing effect of the foam-type hair dye. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 These are the stability test results of the foam-type hair dye of this application and a commercially available S brand foam hair dye sample. Figure 1A shows the appearance of the foam hair dye of this application after 0 minutes, B shows the appearance of the foam hair dye of this application after 30 minutes, C shows the appearance of a commercially available S brand foam hair dye after 0 minutes, and D shows the appearance of a commercially available S brand foam hair dye after 30 minutes. Detailed Implementation

[0033] The present application is further described below with reference to embodiments and examples. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the application. Those skilled in the art can make various alterations or modifications to the present application, and these equivalent forms also fall within the protection scope of the appended claims.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0035] In this application, the technical features described in an open-ended manner include both closed technical solutions consisting of the listed features and open technical solutions that include the listed features.

[0036] In this application, numerical intervals (i.e., numerical ranges) are involved. Unless otherwise specified, optional numerical distributions within the aforementioned numerical intervals are considered continuous and include the two endpoints (i.e., the minimum and maximum values) of the numerical range, as well as every value between these two endpoints. Unless otherwise specified, when a numerical interval points to integers within that interval, it includes the two endpoint integers of the numerical range, as well as every integer between the two endpoints. Furthermore, when multiple ranges are provided to describe features or characteristics, these ranges may be merged. In other words, unless otherwise specified, the ranges disclosed herein should be understood to include any and all subranges to which they are included.

[0037] The following are some specific examples.

[0038] For experimental parameters not specified in the following specific embodiments, please refer to the guidelines given in this application document first, or refer to experimental manuals or other experimental methods known in the art, or refer to the experimental conditions recommended by the manufacturer.

[0039] The raw materials and reagents involved in the following specific embodiments can be obtained commercially or prepared by those skilled in the art using known methods.

[0040] Example 1

[0041] This embodiment provides a foam-type hair dye of this application, which includes hair dye agent 1 and hair dye agent 2, wherein the mass ratio of hair dye agent 1 and hair dye agent 2 is 1:2;

[0042] Hair dye agent No. 1 comprises the following components by weight percentage: 15% sodium lauryl ether sulfate, 2% polyquaternium-10 (water-soluble cationic polymer), 13% ethanol, 10% ammonium hydroxide (first pH adjuster 1), 3% propylene glycol (first humectant), 1% sodium sulfite (antioxidant 1), 0.5% disodium EDTA (chelating agent), 3% p-phenylenediamine (dye agent 1), 0.5% resorcinol (dye agent 2), 0.5% m-phenylaminophenol (dye agent 3), 0.5% 2,4-diaminophenoxyethanol hydrochloride (dye agent 4), 2% fragrance, and the balance being water.

[0043] Hair dye agent #2 comprises the following components by weight percentage: 5% PEG / PPG-17 / 6 copolymer, 1.2% cetrimonium chloride (water-soluble cationic surfactant), 1.5% C 14 Fatty alcohol (stabilizer), 0.2% hydroxyethyl diphosphate (second pH adjuster), 10% propylene glycol (second humectant), 8% hydrogen peroxide (oxidant), balance water.

[0044] Example 2

[0045] This embodiment provides a foam-type hair dye of this application. The difference between the formulation of this embodiment and that of Example 1 is that the water-soluble cationic polymer in Agent 1 of the hair dye is polyquaternium-22, and its mass percentage is 2%.

[0046] Example 3

[0047] This embodiment provides a foam-type hair dye of this application. The difference between the formulation of this embodiment and that of Example 1 is that the water-soluble cationic polymer in Agent 1 of the hair dye is polyquaternium-39, and its mass percentage is 2%.

[0048] Example 4

[0049] This embodiment provides a foam-type hair dye of this application. The difference between the formula and that of Example 1 is that in Agent 1 of the hair dye, the water-soluble cationic polymers are polyquaternium-10 at a mass percentage of 1% and polyquaternium-22 at a mass percentage of 1%.

[0050] Example 5

[0051] This embodiment provides a foam-type hair dye of this application. The difference between the formula of this embodiment and that of Example 1 is that in Agent 2 of the hair dye, the water-soluble cationic surfactant is stearyltrimethylammonium chloride, and its mass percentage is 1.2%.

[0052] Example 6

[0053] This embodiment provides a foam-type hair dye of this application. The difference between the formulation of this embodiment and that of Example 1 is that in Agent 2 of the hair dye, the water-soluble cationic surfactant is behenyltrimethylammonium chloride, and its mass percentage is 1.2%.

[0054] Example 7

[0055] This embodiment provides a foam-type hair dye of this application. The difference between the formula of this embodiment and that of Example 1 is that the stabilizer in Agent 2 of the hair dye is PEG-100 stearate, which has a mass percentage of 1.5%.

[0056] Example 8

[0057] This embodiment provides a foam-type hair dye according to this application. The difference between this embodiment and the formulation in Example 1 is that in agent 2 of the hair dye, the stabilizer is PEG-100 stearate at a mass percentage of 1% and C at a mass percentage of 0.5%. 14 Fatty alcohols.

[0058] Example 9

[0059] This embodiment provides a foam-type hair dye of this application. The difference between the formula and that of Example 1 is that in Agent 1 of the hair dye, the stabilizer 3 is glyceryl stearate, which has a mass percentage of 1.5%.

[0060] Comparative Example 1

[0061] This comparative example provides another foam-type hair dye, the difference from the formulation of Example 1 is that sodium lauryl sulfate replaces sodium lauryl ether sulfate in agent 1 of the hair dye.

[0062] Comparative Example 2

[0063] This comparative example provides another foam-type hair dye, the difference from the formulation of Example 1 is that in agent 1 of the hair dye, cocamidopropyl betaine replaces sodium lauryl ether sulfate.

[0064] Comparative Example 3

[0065] This comparative example provides another foam-type hair dye, the difference from the formulation of Example 1 is that in agent 1 of the hair dye, octyl glucoside replaces sodium lauryl ether sulfate.

[0066] Comparative Example 4

[0067] This comparative example provides another foam-type hair dye, which differs from the formulation of Example 1 in that water-soluble cationic polymers are not used in Agent 1 of the hair dye.

[0068] Comparative Example 5

[0069] This comparative example provides another foam-type hair dye, which differs from the formulation of Example 1 in that ethanol is not used in Agent 1 of the hair dye.

[0070] Comparative Example 6

[0071] This comparative example provides another foam-type hair dye, which differs from the formulation of Example 1 in that water-soluble cationic surfactants are not used in Agent 2 of the hair dye.

[0072] Comparative Example 7

[0073] This comparative example provides another foam-type hair dye, which differs from the formulation of Example 1 in that no stabilizer is used in Agent 2 of the hair dye.

[0074] Comparative Example 8

[0075] This comparative example provides another foam-type hair dye, which differs from the formulation of Example 1 in that no moisturizing agent is used in Agent 2 of the hair dye.

[0076] Stability test:

[0077] The foam pumping morphology and stability of the hair dyes prepared in the examples and comparative examples, as well as a commercially available best-selling brand S foam hair dye, were investigated. Hair dye agent 1 and hair dye agent 2 were mixed at a mass ratio and then tested. Under the same temperature and pressure environment, 30 grams of the mixture were completely pumped into a funnel using the same mordant pump. The foam morphology was observed, and the dripping liquid was collected in a beaker. The foam morphology and the weight of the foam-to-water mixture in the examples and comparative examples were measured after 30 minutes. The obtained test data are shown in Table 1.

[0078] Table 1. Stability test results of the foam-based hair dyes in the examples and comparative examples.

[0079] Sample name Pump out foam morphology description Water loss weight (g) at 30 min Example 1 Foam fine and rich 0.6 Example 2 Foam fine and rich 1.0 Example 3 Foam fine and rich 1.2 Example 4 Foam fine and rich 0.5 Example 5 Foam fine and rich 0.8 Example 6 Foam fine and rich 0.8 Example 7 Foam fine and rich 1.5 Example 8 Foam fine and rich 0.5 Example 9 Foam fine and rich 1.0 Comparative Example 1 Foam fine and rich 17.5 Comparative Example 2 Foam fine and rich 16 Comparative Example 3 Foam fine and rich 15.5 Comparative Example 4 Foam rich but not fine enough 27.1 Comparative Example 5 Mixing liquid thick, unable to pump out foam / Comparative Example 6 Foam rich, fine degree general 15.2 Comparative Example 7 Foam fine and rich 18.5 Comparative Example 8 Foam fine and rich 8.5 Commercially available S brand bubble hair dye Foam fine and rich degree general 16.0

[0080] As can be seen from the stability test results in Table 1, the water weight of the foam-type hair dyes in Examples 1-9 of this application is less than 1.5 grams after 30 minutes, which is far lower than that of Comparative Examples 1-4, 6-8 and commercially available products (15-27 grams), indicating that the foam-type hair dyes of this application have excellent foam stability. In particular, the water weight of Examples 1, 4, 5, 6, and 8 is less than 1.0 gram, exhibiting the best foam stability.

[0081] Comparative Examples 1-3 used sodium lauryl sulfate, cocamidopropyl betaine, and octyl glucoside to replace sodium lauryl ether sulfate, respectively, with water-soluble weights of 17.5 g, 16.0 g, and 15.5 g, demonstrating that sodium lauryl ether sulfate significantly improves foam stability compared to other surfactants. Comparative Example 4, without the use of a water-soluble cationic polymer, had a water-soluble weight as high as 27.1 g, and the foam was not fine enough, indicating that water-soluble cationic polymers have a significant impact on foam stability and fineness. Comparative Example 5, without ethanol, resulted in a viscous mixture that could not be pumped out, indicating that an appropriate amount of alcohol is crucial for adjusting viscosity and foaming performance. Comparative Example 6, without the use of a water-soluble cationic surfactant, Comparative Example 7, without the use of a stabilizer, and Comparative Example 8, without the use of a humectant, had water-soluble weights of 15.2 g, 18.5 g, and 8.5 g, respectively, all of which contributed to foam stability to varying degrees.

[0082] Reasoning Test:

[0083] The foam hair dye of the embodiments of this application and the best-selling foam hair dye of a certain S brand were used to dye hair by trained personnel according to the usage method. Ten people were used for each sample, and then the samples were evaluated and scored. The full score was 10 points. The higher the score, the better the effect. The summary data of the test scores are shown in Table 7.

[0084] Table 2 Comparison of conditioning effects of Example 1, Example 8 and a certain brand S foam hair dye

[0085] Item Example 1 Example 8 S brand bubble hair dye Pump out foam effect 88 85 72 Hair dyeing bubble water dripping phenomenon during hair dyeing 92 90 59 Combing property after hair dyeing 89 88 62 Hair softness after hair dyeing 82 85 55 Dyeing effect 80 82 78

[0086] As can be seen from the conditioning test results in Table 2, the foam-type hair dyes of Examples 1 and 8 of this application are superior to a certain commercially available brand S foam hair dye in terms of pumping foam effect, the phenomenon of hair dye foam turning into water droplets during hair dyeing, combability after hair dyeing, softness of hair after hair dyeing, and dyeing effect. In particular, the advantages are obvious in the phenomenon of hair dye foam turning into water droplets during hair dyeing, combability after hair dyeing, and softness of hair after hair dyeing. This indicates that the foam-type hair dye of this application not only has good foam stability, but also has excellent conditioning effect.

[0087] The technical features of the above-described embodiments and examples can be combined in any suitable manner. For the sake of brevity, not all possible combinations of the technical features in the above-described embodiments and examples are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0088] The embodiments described above merely illustrate several implementation methods of this application and should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Furthermore, it should be understood that after reading the above teachings, those skilled in the art can make various alterations or modifications to this application, and the equivalent forms obtained also fall within the protection scope of this application. It should also be understood that technical solutions obtained by those skilled in the art based on the technical solutions provided in this application through logical analysis, reasoning, or limited experimentation are all within the protection scope of the appended claims. Therefore, the protection scope of this patent application should be determined by the appended claims, and the specification can be used to interpret the content of the claims.

Claims

1. A bubble-type hair dyeing agent, characterized by comprising: The bubble type hair dye includes a hair dyeing No. 1 agent and a hair dyeing No. 2 agent; The hair dyeing No. 1 agent includes the following mass percentages of components: 5-25% of sodium laureth sulfate, 0.1-3% of a water-soluble cationic polymer, 5-20% of an alcohol, 1-12% of a first pH adjuster, 1-10% of a first humectant, 0.1-2% of an antioxidant, 0.1-1% of a chelating agent, 0.1-8% of a dyeing agent, 0.1-3% of a fragrance, and a balance of water; The hair dyeing No. 2 agent includes the following mass percentages of components: 1-10% of PEG / PPG-17 / 6 copolymer, 0.5-3% of a water-soluble cationic surfactant, 0.5-3.5% of a co-stabilizer, 0-0.5% of a second pH adjuster, 1-20% of a second humectant, 3-12% of an oxidizing agent, 0-0.5% of a chelating agent, and a balance of water; The weight ratio of the hair dyeing No. 1 agent to the hair dyeing No. 2 agent is 1:(1-3); The pH of the hair dyeing No. 1 agent is 8-11, and the pH of the hair dyeing No. 2 agent is 2-4; The co-stabilizers include glyceryl stearate, PEG-100 stearate, and C 14 -C 22 at least one fatty alcohol; The water-soluble cationic polymer includes at least one of polyquaternium-10, polyquaternium-22, and polyquaternium-39; The first humectant and the second humectant each independently include at least one of propylene glycol, glycerin, and butylene glycol; The water-soluble cationic surfactant includes at least one of cetrimonium chloride, stearyltrimethylammonium chloride, and behenyltrimethylammonium chloride.

2. A bubble foam hair dye according to claim 1, characterised in that, The C 14 -C 22 The fatty alcohol includes at least one of myristyl alcohol, cetyl alcohol, stearyl alcohol, and behenyl alcohol.

3. A bubble foam hair dye according to any one of claims 1-2, characterised in that, The first pH adjuster is a basic pH adjuster; the basic pH adjuster includes at least one of ammonium hydroxide, ethanolamine, and ammonium chloride; The second pH adjuster is an acidic pH adjuster; the acidic pH adjuster includes at least one of etidronic acid and phosphoric acid.

4. A bubble foam hair dye product according to any one of claims 1 to 2 characterised in that, The chelating agent includes at least one of disodium EDTA and tetrasodium EDTA.

5. A bubble foam hair dye product according to any one of claims 1 to 2 characterised in that, The fragrance includes at least one of a floral fragrance, a fruity fragrance, or a complex fragrance.

Images