JP2022062746A - Combinational hair treatment agent and method for use thereof - Google Patents

Abstract

To provide a combinational hair treatment agent that can change the texture of hair such as softness during treatment, and a method for use thereof.SOLUTION: A combinational hair treatment agent includes at least a first agent and a second agent in combination. The first agent and the second agent are applied to hair in this order. The first agent is an oil-in-water emulsion containing a higher alcohol and a cationic surfactant. The second agent is an oil-in-water emulsion containing a higher alcohol, a cationic surfactant, and at least one hydroxy alkyl cellulose (A) selected from the group consisting of hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxyethyl ethylcellulose and hydroxypropyl methylcellulose.SELECTED DRAWING: None

Description

The present invention relates to a multi-agent hair treatment agent that can change the texture such as softness of hair during the treatment, and a method of using the same.

As a hair treatment agent such as a hair treatment, not only a one-agent type but also a multi-agent type in which a plurality of agents having different compounding compositions are combined is known (Patent Document 1 and the like).

Japanese Unexamined Patent Publication No. 2019-89814

By the way, for example, in a multi-agent hair treatment agent in which the first agent and the second agent are repeatedly applied to the hair, the softness of the hair is between the application of the first agent and the application of the second agent. If it becomes possible to change the texture of such hair, it is expected that expectations for improving the finished condition such as the feeling of repairing hair will increase. In particular, in a beauty salon, if such a change in texture is obtained during hair treatment, it is thought that expectations will increase for both the practitioner and the treated person, and the function that can change the texture as described above is provided. It is desirable to provide a multi-agent hair treatment agent to have.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a multi-agent hair treatment agent capable of changing the texture such as softness of hair during the treatment, and a method of using the same. ..

The multi-agent hair treatment agent of the present invention contains at least the first agent and the second agent, and is applied to the hair in the order of the first agent and the second agent. An oil-in-water emulsion containing a higher alcohol and a cationic surfactant, wherein the second agent is a higher alcohol, a cationic surfactant, and hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxyethyl ethyl cellulose, and hydroxypropyl methyl cellulose. It is characterized in that it is an oil-in-water emulsion type emulsion containing at least one hydroxyalkyl cellulose (A) selected from the above group.

Further, in the method of using the multi-agent hair treatment agent of the present invention, when the multi-agent hair treatment agent of the present invention is used, the first agent is applied to wet hair, and then the first agent. It is characterized in that the second agent is applied to the hair without washing away.

According to the present invention, it is possible to provide a multi-agent hair treatment agent capable of changing the texture such as softness of hair during the treatment, and a method of using the same.

The multi-agent hair treatment agent of the present invention comprises a first agent which is an oil-in-water emulsion containing a higher alcohol and a cationic surfactant, a higher alcohol, a cationic surfactant, and hydroxyethyl cellulose and hydroxypropyl. It is composed of a second agent, which is an oil-in-water emulsion containing at least one hydroxyalkyl cellulose (A) selected from the group consisting of cellulose, hydroxyethyl ethyl cellulose and hydroxypropylmethyl cellulose. Then, by applying the first agent to the wet hair and applying the second agent repeatedly without washing it off, the texture such as the softness of the hair changes from the state of the hair after the first agent is applied. Can be made to.

Hereinafter, the present invention will be described based on the embodiments of the present invention.

[First agent]
The first agent according to the multi-agent hair treatment agent of the present embodiment is an oil-in-water emulsion containing a higher alcohol and a cationic surfactant.

Examples of the higher alcohol that can be blended in the first agent include alcohols having 12 to 22 carbon atoms such as cetanol, isocetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, octyldodecanol, and myristyl alcohol. As the first agent, only one of these higher alcohols may be used, or two or more thereof may be used in combination.

The blending amount of the higher alcohol in the first agent is not particularly limited as long as the first agent can be made into an oil-in-water emulsion, but for example, when the first agent is in the form of a cream, which is a suitable dosage form. Is preferably 2% by mass or more, more preferably 4% by mass or more, more preferably 10% by mass or less, and even more preferably 8% by mass or less.

Examples of the cationic surfactant that can be blended in the first agent include a quaternary ammonium salt having an alkyl chain having 12 to 22 carbon atoms or a tertiary amine salt having an alkyl chain having 12 to 22 carbon atoms. Examples of the salt include halogen salts and alkyl sulfates.

Examples of the quaternary ammonium salt having an alkyl chain having 12 to 22 carbon atoms include monolong-chain alkyl-type quaternary ammonium salts (stearyltrimethylammonium chloride, cetyltrimethylammonium chloride, behenyltrimethylammonium chloride, etc.). Examples thereof include a dilong-chain alkyl type quaternary ammonium salt (such as dicocoyldimethylammonium chloride) and an ethylene oxide (EO) -added type quaternary ammonium salt. Examples of the tertiary amine salt having an alkyl chain having 12 to 22 carbon atoms include fatty acid amide amine, polyoxyethylene alkylamine (polyoxyethylene oleylamine and the like), polyoxyethylene fatty acid amide and the like.

As the first agent, only one of these cationic surfactants may be used, or two or more thereof may be used in combination.

The blending amount of the cationic surfactant in the first agent is not particularly limited as long as the first agent can be made into an oil-in-water emulsion, but for example, the first agent is in the form of a cream, which is a suitable dosage form. In the case, it is preferably 1% by mass or more, more preferably 2% by mass or more, preferably 5% by mass or less, preferably 4% by mass or less, and preferably 3% by mass or less. It is more preferable to have.

The first agent is an oil-in-water emulsion, which contains water. The blending amount of water in the first agent is not particularly limited as long as the first agent is in the range of an oil droplet type emulsion in water, but is, for example, 60 to 90% by mass.

Further, for example, various components contained in a normal hair treatment agent can be arbitrarily added to the first agent. Such optional components include, for example, silicones, nonionic surfactants, polyhydric alcohols, ester oils, sugars, fats and oils, fatty acids, hydrocarbons, waxes, high molecular weight compounds, lower alcohols, amino acids, animal and plant extract oils, and microorganisms. Examples include substances, inorganic compounds, fragrances, and preservatives.

Hydroxyalkylcellulose (A) and / or tamarind gum can be blended in the first agent, but in that case, the blending amount of hydroxyalkylcellulose (A) is less than 0.02% by mass, and the blending amount of tamarind gum is It is preferably less than 0.1% by mass.

Examples of the silicone include highly polymerized methylpolysiloxane, dimethiconol, polyether-modified silicone (polyoxyethylene / methylpolysiloxane copolymer, polyoxyethylene / polyoxypropylene / methylpolysiloxane copolymer, etc.), polyglycerin-modified Examples thereof include silicone (polyglyceryl-3 disiloxane dimethicone, etc.), amino-modified silicone (aminoethylaminopropylsiloxane, dimethylsiloxane copolymer, etc.), phenyl-modified silicone (methylphenylpolysiloxane, etc.), and the like. The blending amount of silicone in the first agent is, for example, 0.1 to 20% by mass.

Examples of the nonionic surfactant include polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene hydrogenated castor oil, and polyoxyethylene sorbitol tetra fatty acid. Examples thereof include esters, glycerin fatty acid esters, alkyl glucosides, sorbitan fatty acid esters, polyglycerin fatty acid esters, polyoxyethylene glycerin fatty acid esters, sucrose fatty acid esters and the like. The blending amount of the nonionic surfactant in the first agent is, for example, 0.05 to 5% by mass.

Examples of the polyhydric alcohol include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, glycerin, diglycerin, butylene glycol and the like. The blending amount of the polyhydric alcohol in the first agent is, for example, 0.05 to 10% by mass or less.

Examples of the ester oil include an ester of a linear fatty acid such as isopropyl myristate and a lower alcohol, an ester of a linear fatty acid such as cetyl caprylate and a linear higher alcohol, and a linear fatty acid such as 2-ethylhexyl palmitate. Esters with branched alcohols, esters with branched fatty acids such as isopropyl isostearate and lower alcohols, esters with branched fatty acids such as cetyl ethylhexanate and linear higher alcohols, fatty acids such as propylene glycol dicaprylate and polyvalent Examples thereof include esters with alcohols, esters with branched fatty acids such as 2-ethylhexyl isononanoate and branched alcohols. The blending amount of the ester oil in the first agent is, for example, 0.01 to 20% by mass or less.

The pH of the first agent is, for example, 3 to 11.

The first agent can be, for example, a liquid, lotion, cream, gel or the like.

When the first agent is in the form of a cream, which is a suitable dosage form, its viscosity is, for example, 3,000 mPa · s or more and 40,000 mPa · s or less. The viscosities of the first agent and the second agent referred to in the present specification are values after 60 seconds measured at 25 ° C. using a rotor selected according to the viscosity in a B-type viscometer.

[Second agent]
The second agent according to the multi-agent hair treatment agent of the present embodiment is an oil-in-water emulsion containing a higher alcohol, a cationic surfactant and a specific hydroxyalkyl cellulose (A).

As the higher alcohol of the second agent, one or more of the same as the various higher alcohols exemplified above as those that can be used for the first agent can be used.

The blending amount of the higher alcohol in the second agent is not particularly limited as long as the second agent can be made into an oil-in-water emulsion, but for example, when the second agent is in the form of a cream, which is a suitable dosage form. Is preferably 1% by mass or more, more preferably 2% by mass or more, preferably 6% by mass or less, and more preferably 4% by mass or less.

As the cationic surfactant of the second agent, one or more of the same as the various cationic surfactants exemplified above as those that can be used for the first agent can be used.

The amount of the cationic surfactant to be blended in the second agent is not particularly limited as long as the second agent can be made into an oil-in-water emulsion, but for example, the second agent may be in the form of a cream, which is a suitable dosage form. In the case, it is preferably 0.5% by mass or more, more preferably 1% by mass or more, preferably 5% by mass or less, preferably 4% by mass or less, and 3% by mass. The following is more preferable.

The hydroxyalkyl cellulose (A) that can be blended in the second agent is selected from hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxyethyl ethyl cellulose and hydroxypropylmethyl cellulose. As the hydroxyalkyl cellulose (A), only one of these may be used, or two or more thereof may be used in combination.

The blending amount of hydroxyalkyl cellulose (A) in the second agent better ensures the effect of enhancing the texture such as the softness of the hair after the second agent is applied from the state after the first agent is applied. From the viewpoint, it is preferably 0.02% by mass or more, and more preferably 0.1% by mass or more. However, if the amount of hydroxyalkylcellulose (A) in the second agent is too large, the viscosity may increase too much. Therefore, the blending amount of hydroxyalkylcellulose (A) in the second agent is 1.5% by mass. It is preferably less than or equal to, more preferably 1.0% by mass or less, still more preferably 0.5% by mass or less.

It is preferable to add tamarind gum to the second agent. As a result, the texture such as the softness of the hair after the application of the second agent can be changed more significantly from the texture after the application of the first agent.

The blending amount of tamarind gum in the second agent is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, from the viewpoint of better ensuring the above-mentioned effect by its use. .. However, if the amount of tamarind gum in the second agent is too large, the viscosity may increase too much. Therefore, the blending amount of tamarind gum in the second agent is preferably 2% by mass or less, and is preferably 1.5. It is more preferably mass% or less.

The second agent is an oil-in-water emulsion, which contains water. The blending amount of water in the second agent is not particularly limited as long as the second agent is in the range of an oil droplet type emulsion in water, but is, for example, 60 to 90% by mass.

In addition, various components contained in, for example, a normal hair treatment agent can be arbitrarily added to the second agent. Such optional components include, for example, silicones, nonionic surfactants, polyhydric alcohols, ester oils, sugars, fats and oils, fatty acids, hydrocarbons, waxes, high molecular weight compounds, lower alcohols, amino acids, animal and plant extract oils, and microorganisms. Examples include substances, inorganic compounds, fragrances, and preservatives.

As the second agent silicone, one or more of the same silicones as those exemplified above as those that can be used for the first agent can be used. The blending amount of silicone in the second agent is, for example, 0.1 to 20% by mass.

As the nonionic surfactant of the second agent, one or more of the same as the various nonionic surfactants exemplified above as those which can be used for the first agent can be used. The blending amount of the nonionic surfactant in the second agent is, for example, 0.05 to 5% by mass.

As the polyhydric alcohol of the second agent, one or more of the same as the various polyhydric alcohols exemplified above as those that can be used for the first agent can be used. The blending amount of the polyhydric alcohol in the second agent is, for example, 0.05 to 10% by mass.

As the ester oil of the second agent, one or more of the same as the various ester oils exemplified above as those that can be used for the first agent can be used. The blending amount of the ester oil in the second agent is, for example, 0.1 to 10% by mass.

The pH of the second agent is, for example, 3 to 11.

The second agent can be, for example, a liquid, lotion, cream, gel or the like.

When the second agent is in the form of a cream, which is a suitable dosage form, its viscosity is, for example, 3,000 mPa · s or more and 40,000 mPa · s or less.

[Composition of multi-agent hair treatment agent]
The multi-agent hair treatment agent according to the present embodiment may be composed of only the first agent and the second agent, but may contain one kind or two or more kinds of other treatment agents as needed. good.

[How to use multi-agent hair treatment agent]
In the multi-agent hair treatment agent according to the present embodiment, for example, the first agent is applied to wet hair, and the second agent is applied to the hair without washing away the first agent (first agent). It can be used by the method (overcoating on). When applying the first agent to the hair and when applying the second agent to the hair, for example, an appropriate amount of the first agent or the second agent can be picked up and applied. When the multi-agent hair treatment agent contains other treatment agents in addition to the first agent and the second agent, the second agent is subsequently applied to the hair after the first agent is applied, and the other agent is applied. The treatment agent is applied to the hair before the application of the first agent or after the application of the second agent.

[Use of multi-agent hair treatment agent]
The multi-agent hair treatment agent according to the present embodiment can be used as a multi-agent hair treatment applied to hair after washing with shampoo, and is also a pretreatment for hair deformation treatment such as permanent wave treatment and hair straightening treatment. It can be used as an agent, an intermediate treatment agent and a post-treatment agent, a pre-treatment agent and a post-treatment agent for color treatment, and the like.

Hereinafter, the present invention will be described in detail based on examples. However, the following examples do not limit the present invention. Although the blending amount of each component of the first agent shown in Table 1 and the second agent shown in Table 2 below is by mass, the display of the mass part is omitted and only the numerical value indicating the blending amount is omitted. Display with.

Examples 1 and 2 and Comparative Examples 1 to 4
First, using stearyl alcohol, cetanol, stearyltrimethylammonium chloride, dicocoyldimethylammonium chloride, aminoethylaminopropylsiloxane / dimethylsiloxane copolymer emulsion, isopropanol, and purified water, the first agent is prepared with the composition shown in Table 1. bottom. The first agent obtained was an oil-in-water emulsion having a pH of 7.96 and a viscosity of 7060 mPa · s.

Next, stearyl alcohol, cetanol, stearyltrimethylammonium chloride, dicocoyldimethylammonium chloride, hydroxyethylcellulose, stearoxyhydroxypropylmethylcellulose, cationized cellulose, tamarind gum, methylpolysiloxane, aminoethylaminopropylsiloxane / dimethylsiloxane copolymer. Using an emulsion, dipropylene glycol, 2-ethylhexyl isononanoate, isopropanol, and purified water, the second agent according to Examples 1 and 2 and Comparative Examples 1 to 4 was prepared with the compositions shown in Table 2. The second agents obtained were all oil-in-water emulsions, and their pH and viscosity were as shown in Table 2.

Then, these second agents were combined with the first agent to obtain multi-agent hair treatment agents of Examples 1 and 2 and Comparative Examples 1 to 4.

With respect to the multi-agent hair treatment agents of Examples and Comparative Examples, the degree of change in the texture (softness) of the hair to which the first agent was applied by the following method after the second agent was repeatedly applied (the texture of the hair). Change) was evaluated.

A plurality of hair bundles (7 g per hair bundle) collected from the same person were prepared, and each was washed with shampoo and then rinsed with water. After that, the first agent: 0.2 g of the multi-agent hair treatment agent is picked up and applied evenly to each of the hair bundles, and then the second agent: 0.2 g is picked up and applied evenly. It was evenly applied over the first agent.

The degree of change in the texture (softness) of the hair after the application of the second agent from the texture of the hair after the application of the first agent during the above treatment in the multi-agent hair treatment agents of Examples and Comparative Examples. Six professional evaluators evaluated and scored according to the following criteria.

<Evaluation criteria>
The softness of the hair is greatly improved after applying the second agent: 3 points,
The softness of the hair is improved after applying the second agent: 2 points,
The softness of the hair is slightly improved after applying the second agent: 1 point,
There is almost no change in the softness of the hair between after applying the first agent and after applying the second agent: 0 points.

Then, the scores of all the evaluators were totaled to evaluate the function of each multi-agent hair treatment agent to change the texture of the hair after the application of the second agent after the application of the first agent. The results of these evaluations are also shown in Table 2.

The "aminoethylaminopropylsiloxane / dimethylsiloxane copolymer emulsion" in Table 1 is an aqueous dispersion containing 40% by mass of the aminoethylaminopropylsiloxane / dimethylsiloxane copolymer which is an amino-modified silicone. The "cationized cellulose" in Table 2 is O- [2-hydroxy-3- (trimethylammonio) propyl] hydroxyethyl cellulose (polyquaternium-10) chloride.

As shown in Table 2, the multi-agent hair treatment agent of Examples 1 and 2 having the second agent containing hydroxyalkylcellulose (A) together with the higher alcohol and the cationic surfactant is after applying the second agent. The texture (softness) of the hair could be satisfactorily changed after the application of the first agent. Further, the multi-agent hair treatment agent of Example 1 in which tamarind gum is also added to the second agent in addition to hydroxyalkyl cellulose (A) is applied to the hair after the second agent is applied, after the first agent is applied. The degree of change in the texture of the hair was greater than that of the multi-agent hair treatment agent of Example 2 in which the second agent did not contain tamarind gum.

On the other hand, the multi-agent hair treatment agent of Comparative Example 1 having the second agent having the same composition as the first agent, and Comparative Example 2 having the second agent containing tamarind gum without blending hydroxyalkylcellulose (A). Instead of the multi-agent hair treatment agent, the multi-agent hair treatment agent of Comparative Example 3 having a second agent containing stearoxyhydroxypropylmethyl cellulose instead of the hydroxyalkyl cellulose (A), and the hydroxyalkyl cellulose (A). The multi-agent hair treatment agent of Comparative Example 4 having the second agent containing cationized cellulose has a small degree of change in the texture of the hair after the application of the second agent after the application of the first agent. It was inferior to the multi-agent hair treatment agents of Examples 1 and 2.

Claims (3)

A multi-agent hair treatment agent containing at least a first agent and a second agent, which is applied to hair in the order of the first agent and the second agent.
The first agent is an oil-in-water emulsion containing a higher alcohol and a cationic surfactant.
The second agent contains a higher alcohol, a cationic surfactant, and at least one hydroxyalkyl cellulose (A) selected from the group consisting of hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxyethyl ethyl cellulose and hydroxypropylmethyl cellulose. A multi-agent hair treatment agent characterized by being an oil-in-water emulsion. The multi-agent hair treatment agent according to claim 1, wherein the second agent further contains tamarind gum. The method for using the multi-agent hair treatment agent according to claim 1 or 2.
A method for using a multi-agent hair treatment agent, which comprises applying the first agent to wet hair, and then applying the second agent to the hair without washing away the first agent.