KR20110097620A - Agent for deformation of hair, agent for straightening curly hair and straightener kit using the same - Google Patents

Abstract

An object of this invention is to provide the 1st agent for hair deformation which is easy to control the softening degree of hair at the time of hair deformation treatment.
This invention contains [A] cationic surfactant, [B] anionic surfactant, [C] dithiodiglycolic acid or its salt, and [D] reducing agent, [A] component with respect to 1 mass part of [B] components The compounding ratio of 1 is 1 mass part or more and 15 mass parts or less of the 1st agent for hair deformation. It is preferable that the cationic surfactant (A) is an alkyltrimethylammonium salt. It is preferable that the compounding quantity of (A) cationic surfactant is 1.0 mass% or more and 5.0 mass% or less.

Description

The first agent for hair deformation, the first agent for straightening curls, and the curling hair straightener kit using the same. {AGENT FOR DEFORMATION OF HAIR, AGENT FOR STRAIGHTENING CURLY HAIR AND STRAIGHTENER KIT USING THE SAME}

The present invention relates to a first agent for modifying hair, a first agent for correcting curls, and a kit for correcting curls using the same.

When the hair is subjected to a treatment such as permanent wave or curly hair straightening (hereinafter collectively referred to as a hair modification treatment), a first agent for modifying hair is used in which a cationic surfactant, an anionic surfactant, an alkali agent and a reducing agent are blended (Japanese Patent Laid-Open). 2009-107935, etc.). When the hair modification treatment is performed using the first agent for modifying the hair, the state of deformation of the hair is changed by changing the compounding amount of the alkali agent or the reducing agent among the above components according to the quality of the hair, or by mixing the reaction modifier and adjusting the type thereof. I'm adjusting. For example, in the case of thin hairs (hereinafter, referred to as soft hairs) as compared to hair types having different diameters of one hair, one having reduced the compounding amount of an alkali agent or a reducing agent is used.

However, when the softening of the bristles is sufficiently softened using the above, for example, since the progress of softening is slow, the leaving time of the first agent is lengthened, or, on the contrary, the leaving time is too short, so that the hair is optimally softened. It may not reach, and a wave may return or a wave may disappear within a few days after processing. On the other hand, when using the normal 1st agent for hair deformation | transformation, since softening progresses quickly, it becomes easy to be in the state called the "over softening" which the softening degree of hair is excessive, and may give a big damage to hair. Thus, making it easy to control the softening degree of hair at the time of hair deformation processing has a big influence on the finishing. In addition, in the case of curly hair straightening treatment, if the required softening degree is exceeded, the volume of the hair may be lowered more than necessary, and may be different from the silhouette required by the consumer.

Therefore, the 1st agent for hair deformation which is easy to control the softening degree of hair at the time of hair deformation processing is desired.

Japanese Patent Laid-Open No. 2009-107935

An object of this invention is to provide the 1st agent for hair deformation which is easy to control the softening degree of hair at the time of hair deformation treatment.

As a result of diligent studies by the present inventors, cationic surfactants, anionic surfactants, dithiodiglycolic acid or salts thereof and reducing agents are used as the compounding ingredients of the first agent for hair modification. By setting the blending ratio to a specific range, it was found that the softening degree of the hair was easily controlled during the deformation treatment, and the present invention was completed.

That is, the first agent for modifying hair according to the present invention,

[A] cationic surfactants,

[B] anionic surfactants,

[C] dithiodiglycolic acid or its salt,

[D] reducing agent,

Is formulated,

The blending ratio of the [A] cationic surfactant with respect to 1 mass part of [B] anionic surfactants is the 1st agent for hair deformation of 1 mass part or more and 15 mass parts or less.

According to the said 1st agent for hair deformation, since it has the said specific compounding component and compounding ratio, it can make it easy to control the softening degree of hair at the time of a deformation | transformation process. When the blending ratio of the [A] cationic surfactant to 1 part by mass of the [B] anionic surfactant is less than 1 part by mass, the softening degree tends to be excessive, and in the case of curly hair straightening treatment, the volume of the hair after the treatment This tends to be considerably lowered, and when it exceeds 15 parts by mass, it tends to be difficult to reach an optimum softening degree, and in the case of curly hair straightening treatment, the return of the curling tends to occur.

As said [A] cationic surfactant, an alkyl quaternary ammonium salt is preferable. By blending the alkyl quaternary ammonium salt as the component (A), the degree of softening of the hair can be effectively controlled during the deformation treatment.

As a compounding quantity of the said [A] cationic surfactant, it is preferable that they are 0.8 mass% or more and 5.0 mass% or less. By setting the compounding quantity of the [A] component in the said range, the softening degree of the hair at the time of a deformation | transformation process can be controlled effectively.

The said 1st agent for hair deformation should just mix | blend a [E] nonionic surfactant. Thus, since the viscosity of the said 1st agent for hair deformation can be adjusted easily by mix | blending [E] nonionic surfactant, it becomes easy to apply | coat to hair.

Even when the first agent for modifying hair of the present invention is used as the first agent for correcting curls, it is easy to control the degree of softening of the hair at the time of the deformation treatment, and therefore it is considered that the treatment is easily terminated in an appropriate softening state.

In addition, the curling hair straightener kit of the present invention is characterized by including the curling hair straightening first agent and at least a curling hair straightening second agent in which an oxidizing agent is blended. When the curly hair straightener kit is used, it is easy to control the degree of softening of the hair at the time of the deformation treatment. Therefore, it is considered that the softening of the hair, excessive decrease in the volume of the hair after the straightening of the curly hair, and recovery of the curling are also unlikely to occur.

As described above, according to the first agent for hair deformation according to the present invention, it is easy to control the degree of softening of the hair during deformation treatment. That is, the said 1st hair deformation | transformation agent can soften especially soft hair relatively easily and reliably to an appropriate grade.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the initial elastic modulus of the 1st agent for hair deformation which concerns on this invention.

The 1st agent for hair deformation of this invention contains [A] cationic surfactant, [B] anionic surfactant, [C] dithiodiglycolic acid or its salt, and [D] reducing agent, and [B] component 1 mass The compounding ratio of [A] component with respect to parts is 1 mass part or more and 15 mass parts or less. Hereinafter, these [A]-[D] components are demonstrated one by one.

(Component [A]: Cationic Surfactant)

One kind or two or more kinds selected from cationic surfactants used as known first hair modification agents can be blended into the first hair modification agent of the present invention as the component [A].

As the cationic surfactant of the component [A], for example, alkyl quaternary compounds such as amine salts such as alkylamine salts and aliphatic amideamine salts, alkyltrimethylammonium salts, dialkyldimethylammonium salts, alkyldimethylbenzylammonium salts and alkylethertrimethylammonium salts Cyclic quaternary ammonium salts, such as an ammonium salt, an alkyl pyridinium salt, and an alkyl isoquinolium salt, etc. are mentioned. Examples of the alkyl group of these cationic surfactants and the alkyl group of the fatty acid include those having 12 to 22 carbon atoms.

It is preferable to use an alkyl quaternary ammonium salt among the said cationic surfactant, and it is more preferable to use an alkyl trimethylammonium salt. By using the said alkyl trimethylammonium salt, the softening degree of hair at the time of a deformation | transformation process can be controlled effectively.

Specific examples of the alkyltrimethylammonium salt include lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium bromide, lauryl trimethylammonium bromide, cetyltrimethylammonium bromide and stearyltrimethylammonium bromide. And behenyl trimethylammonium bromide. Alkyl trimethylammonium salt may be individual or may be used in combination of 2 or more type.

0.8 mass% or more and 5.0 mass% or less are preferable, and, as for the compounding quantity of the [A] cationic surfactant in the said 1st agent for hair deformation, 1.0 mass% or more and 3.0 mass% or less are more preferable. By setting the compounding quantity of the [A] component in the said range, the softening degree of hair at the time of a deformation | transformation process can be controlled effectively.

(Component [B]: Anionic Surfactant)

One kind or two or more kinds selected from the anionic surfactants used in the known first hair modification agent can be blended into the first hair modification agent of the present invention as the component [B].

Examples of the anionic surfactant of the component [B] include sodium lauroylmethylmelylalanine, palm oil fatty acid sarcosine sodium, palm oil fatty acid sarcosine triethanolamine, lauroyl sarcosine, lauroyl sarcosine sodium, lauro N-acylamino acid or its salt, such as potassium yl sarcosine, sodium myristoyl sarcosine, oleyl sarcosine, and sodium palmitoyl sarcosine, POE lauryl ether acetate, sodium POE lauryl ether acetate, POE tridecyl ether acetate Alkyl ether carboxylic acids or salts thereof, such as sodium POE tridecyl ether acetate and POE tridecyl ether acetate, fatty acid soaps such as potassium myristic acid, potassium laurate, sodium laurate and sodium palmitate, and POE oleate Monoether phosphate, POE oleyl ether phosphate, POE lauryl ether phosphate, POE lauryl ether phosphate, POE cetyl ether phosphate, POE cetyl ether phosphate , POE stearyl ether phosphate, sodium POE stearyl ether phosphate, sodium diPOE lauryl ether phosphate, sodium dioleyl POE ether phosphate, diPOE (C12-15) alkyl ether phosphate, triPOE lauryl ether phosphate, triPOE cetyl POE alkyl ether phosphoric acid or salts thereof, such as ether phosphoric acid and triPOE (C12-15) alkyl ether phosphoric acid, alkyl phosphoric acid such as cetyl phosphate, disetyl phosphate, trioleyl phosphate, and tristearyl phosphate, and N-cocoylmethyltaurine Sodium, N-lauroylmethyltaurine sodium, N-myristoylmethyltaurine sodium, N-palmitoylmethyltaurine sodium, N-stearoylmethyltaurine sodium, palm oil fatty acid methyltaurid sodium, laurylmethyltaurid sodium Higher fatty acid amide sulfonates, lauryl ammonium sulfate, potassium lauryl sulfate, sodium lauryl sulfate, lauryl sulfate triethanolamine, sodium myristyl sulfate, sodium cetyl sulfate, hardened palm oil fatty acid glyceryl sulfate POE alkyl ether sulfates such as alkyl sulfates such as cerium, sodium POE (C12, 13) alkyl ether sulfates, ammonium POE lauryl ether sulfates, sodium POE lauryl ether sulfates, triethanolamine POE lauryl ether sulfates, sodium lauryl sulfoacetate, tetra Sulfonic acid salts such as sulfonates such as sodium decene sulfonate, sodium sulfosuccinate dioctyl, sodium monolauroyl monoethanolamide polyoxyethylene sulfosuccinate, sodium lauryl polypropylene glycol sulfosuccinate, and the like. POE is an abbreviation of polyoxyethylene, and as an average added mole number, the thing of 1-20 is mentioned, for example.

It is preferable to use at least 1 sort (s) chosen from POE alkyl ether phosphoric acid, its salt, and alkyl phosphoric acid among the said [B] anionic surfactant. Moreover, when two types of [B] components are mix | blended, the combination of POE alkyl ether phosphoric acid, its salt, and alkyl phosphoric acid is preferable, and the combination of POE cetyl ether phosphoric acid and disetyl phosphate is especially preferable. By simultaneously combining these, the degree of softening of the hair can be effectively controlled during the deformation treatment.

0.1 mass% or more and 3.0 mass% or less are preferable, and, as for the compounding quantity of [B] component in the said 1st agent for hair deformation, 0.2 mass% or more and 1.0 mass% or less are more preferable. By setting the compounding quantity of [B] component in the said range, the softening degree of hair at the time of a deformation | transformation process can be controlled effectively.

The compounding ratio of [A] component with respect to 1 mass part of [B] components is 1 mass part or more and 15 mass parts or less, and it is more preferable that they are 2 mass parts or more and 8 mass parts or less. When the blending ratio of the component [A] to 1 part by mass of the component [B] is less than 1 part by mass, the softening degree is excessive. For example, hair softening tends to occur. Insufficient and, for example, the return of the bend is likely to occur.

([C] component: dithiodiglycolic acid or its salt)

Dithiodiglycolic acid or its salt of component [C] is blended into the hair modification treatment first agent of the present invention as a reaction regulator.

Examples of the dithiodiglycolate salt of the component [C] include dithiodiglycolate diammonium, dithiodiglycolate monoethanolamine, dithiodiglycolate triethanolamine, and the like.

The compounding quantity of [C] component is not specifically limited. When this compounding quantity is 1.0 mass% or more and 6.0 mass% or less, it is hard to generate | occur | produce the hair after a deformation | transformation process.

([D] reducing agent)

One kind or two or more kinds selected from the reducing agents used in the known first hair modification agent can be blended into the first hair modification agent of the present invention as the [D] component.

The reducing agent for component [D] is not particularly limited as long as it has the ability to reduce keratin, which is a protein in the hair. For example, thioglycolic acid, its derivatives and salts thereof (ammonium salt, monoethanolamine salt, etc.), cysteine, The derivative | guide_body, its salt (hydrochloride, etc.), a chlorite, a hydrogen sulfite, and various reducing agents which have a mercapto group are mentioned.

Although the compounding quantity of [D] component may adjust suitably according to the reducing power calculated | required, It is preferable that they are 6.0 mass% or more and 11.0 mass% or less in thioglycolic acid conversion value.

In addition, the "thioglycolic acid conversion value" regarding the compounding quantity of the reducing agent in the 1st agent for straightening curly hair said here is "[permanent wave solvent manufacture approval standard" published by the permanent wave Kogyo Kumi I. Appendix] "1. Permanent Wave Solvent Quality Standard". Obtained by the method defined in "(A) Reducing substance after (a) acidic boiling" in "(1) First agent" in thioglycolic acid or its salt as an active ingredient. Paper is the content rate (as thioglycolic acid) (%) of the reducing substance after acidic boiling.

([E] nonionic surfactant)

One kind or two or more kinds selected from the nonionic surfactants used in the known first hair modification agent may optionally be further blended into the first hair modification agent of the present invention as the [E] component. [E] component functions as a viscosity modifier of the 1st agent for hair deformation of this invention.

As a nonionic surfactant, For example, polyoxyethylene (2-40) alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyethylene glycol fatty acid ester (mono laurate polyethylene glycol, etc.), ethylene glycol fatty acid ester (magnetic) Emulsified monoethyl ethylene stearate, etc.), sorbitan fatty acid esters (such as mono sorbate mono stearate), polyoxyethylene sorbitan fatty acid esters (polyoxyethylene (20) sorbitan stearate, etc.), polyoxyethylene hardened castor oil , Polyoxyethylene sorbitan fatty acid ester (polyisoethylene (3) sorbitol isostearic acid, etc.), glycerin fatty acid ester (such as glycerin monostearate self-emulsifying), polyglycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, water And cross-fatty acid esters. For the surfactants, the values in parentheses indicate the average added moles of ethylene oxide). Moreover, as an alkyl ether part of said polyoxyethylene (2-40) alkyl ether or polyoxyethylene polyoxypropylene alkyl ether, for example, lauryl ether, cetyl ether, stearyl ether, oleyl ether, behenyl Ether and the like.

POE alkyl ether is preferable among the said [E] nonionic surfactant. By mix | blending POE alkyl ether, a viscosity can be adjusted easily and it becomes easy to apply | coat.

Although the compounding quantity of [E] component should just be adjusted according to the kind of viscosity required for the said 1st agent for hair deformation, and a kind of nonionic surfactant, it is 0.3 mass% or more and 4.0 mass% or less normally.

(Other ingredients)

Moreover, it is preferable that an alkali agent is mix | blended with the said 1st agent for hair deformation. The alkali agent is not particularly limited, and examples thereof include ammonia, amines, basic amino acids, monoethanolamine, isopropanolamine, ammonium bicarbonate, sodium bicarbonate, ammonium bicarbonate, lysine and arginine. An alkali chemicals may be used individually by 1 type, and may use 2 or more types together.

Although the compounding quantity of the alkali agent mix | blended with the said 1st agent for hair deformation should just be adjusted suitably according to the softening degree calculated | required by the hair which is a process target, 0.01 mass% or more and 20.00 mass% or less are preferable.

In addition, when the said 1st agent for hair deformation | transformation is a 1st agent for straightening hair, it is preferable that a higher alcohol is mix | blended. The higher alcohol is not particularly limited, and for example, lauryl alcohol, myristyl alcohol, cetanol, stearyl alcohol, octyldodecanol, behenyl alcohol, isocetyl alcohol, isostearyl alcohol, decyl tetradecanol And tetradecyloctadecanol, cetostearyl alcohol (a mixture of cetanol and stearyl alcohol), oleyl alcohol, jojoba alcohol, lanolin alcohol and the like. Higher alcohol may be used individually by 1 type, and may use 2 or more types together.

In this case, although the compounding quantity of the higher alcohol mix | blended with the 1st agent for curly hair straightening should just be adjusted suitably according to the ease of application to hair, etc., 1.0 mass% or more and 15.0 mass% or less are preferable.

A well-known hair modification 1st agent component can be mix | blended with the said hair modification 1st agent in the range which does not impair the effect of this invention. Such components include, for example, fats and oils such as animal oils and vegetable oils, lobs, hydrocarbons, fatty acids, polyhydric alcohols, ethers, esters, silicones, sugars, water-soluble polymers, inorganic or organic powders, plant and seaweed extracts, lysine and arginine. Amino acids and derivatives thereof, proteins and derivatives thereof, ultraviolet absorbers, vitamins and derivatives thereof, preservatives, metal ion sequestrants, antioxidants, buffers, amphoteric surfactants, anti-inflammatory agents, chelating agents, fragrances and the like. The component and preferable component which are needed according to the use of the 1st agent for a deformation | transformation can be selected suitably, and can be mix | blended. Moreover, the said [A]-[E] component is excluded from these arbitrary components.

(First agent for hair deformation)

It is preferable that the said 1st hair deformation | transformation agent is an emulsion, For example, it can be made into the form of cream form, lotion form, a gel form. It is preferable to use a lotion emulsion when it is set as a permanent wave 1st agent from the point of application | coating to hair, etc., and it is preferable to set it as a creamy emulsion when it is set as a 1st agent for straightening hair.

The said 1st agent for hair deformation uses water as a main dispersion medium. In addition, some of said various components may be melt | dissolved in water. Moreover, the whole dispersion medium may be water, and may contain organic solvents, such as lower alcohol (alcohols, such as ethanol and 6 or less alcohol (except isopropanol)). However, since the amount of the organic solvent in a dispersion medium may increase irritation to a scalp, it is preferable that content of the organic solvent in a dispersion medium is 5 mass% or less, for example. Moreover, it is preferable that the compounding quantity of the dispersion medium in the said 1st agent for hair deformation is 40-98 mass%, for example.

The said 1st hair deformation | transformation agent is used for the permanent wave 1st agent or the curly hair straightening 1st agent.

(Curly Hair Straightener Kit)

A curly hair straightener kit is constituted by a curly hair straightening first agent composed of the first hair modifying agent and a second hair straightening hair straightener containing at least an oxidizing agent.

As the second agent for correcting curls, a known second agent for correcting curls may be applied in which one or two or more selected from oxidants are blended. There is no restriction | limiting in particular as an oxidizing agent of a curly hair straightening agent, if it has the ability to recombine the disulfide bond in hair, For example, various oxidizing agents, such as hydrogen peroxide and sodium bromide, are mentioned.

Curly hair straightening treatment method using a curly hair straightener kit can employ | adopt the same conditions and operation as the processing method by the conventionally known curly hair straightener kit. For example, it has the procedure of following (1)-(5). (1) The first agent for correcting curls is applied to the hair, and the reduction reaction of disulfide bonds in the keratin of the hair is advanced. (2) The first agent for correcting curls applied to the hair is washed and removed. (3) The hair iron for hairdressing (the hair iron temperature for hairdressing, for example, 160 degreeC or more and 220 degrees C or less) is used, and the state of hair is straightened so that it may become close to a straight hair. (4) A second agent for correcting curls is applied to the hair, and oxidation reaction is performed in the keratin of the hair. (5) The curly hair straightening second agent applied to the hair is washed and removed, dried and finished.

(Example)

Although an Example is given to the following and it demonstrates more concretely, this invention is not limited to a following example, unless the meaning of this invention departs. In addition, unless otherwise indicated, the numerical value of the 1st agent for hair deformation unless otherwise indicated in an Example is "mass%" including a table.

Example 1

2.00 mass% of cetyltrimethylammonium chloride as a cationic surfactant, 0.20 mass% of disetyl phosphate as anionic surfactant, 0.4 mass% of POE (10) cetyl ether phosphoric acid, 2.00 mass% of dithiodiglycol diammonium dithiodiglycolate as a dithiodiglycolate, and a reducing agent 9.00% by mass of ammonium thioglycolate, 3.2% by mass of monoethanolamine, 0.5% by mass of sodium bicarbonate, 5.00% by mass of cetostearyl alcohol, and the remaining amount of water until the oil-in-water emulsified state is sufficiently stirred to form a creamy hair I prepared 1 drug.

[Examples 2 to 5 and Comparative Examples 1 to 5]

Also in these examples, it carried out similarly to Example 1 except having changed to the component and quantity of Table 1, and prepared the 1st agent for hair deformation.

(Characteristic evaluation of the 1st agent for hair deformation)

[Evaluation of Silhouette and Snagging Returns]

Curly hair using 5 hairdressers using a hair iron using a panelist of soft hair, and using the compositions shown in Examples and Comparative Examples as the first agent for curling hair straightening, and the second agent for curling hair straightening shown below. Hair straightening treatment was performed. The condition of the hair after 2 weeks of treatment was evaluated by the following evaluation criteria for the absence of the return of the swelling (that is, the phenomenon of swelling again after a few days after the procedure if the proper softening degree was not reached). . In addition, the silhouette of the hair (whether the hair is a natural straight or, for example, the volume of the hair is not in an excessively reduced state) was evaluated by the following evaluation criteria.

As for the evaluation criteria of return of a silhouette and a squirrel, two points were "good", "normal" was one point, and "bad" was 0 points. The total of five professional raters was made into the following evaluation results.

◎… 10 to 8 points

○… 7 to 5 points

×… 4 to 0 points

The second agent for correcting curls is 0.30 mass% of dimethyl phosphate, 0.15 mass% of POE (10) cetyl ether phosphoric acid, 2.35 mass% of cetostearyl alcohol, 5.00 mass% of dipropylene glycol, 1.50 mass% of hydrogen peroxide, and hydroxyethane. 0.10 mass% of diphosphonic acid, 1.40 mass% of sodium monohydrogen phosphate, 0.25 mass% of phosphoric acid, 0.10 mass% of fragrance | flavor, and the remainder of water were mixed, and the thing which stirred was used.

Initial Elastic Modulus Test

For one piece of hair collected from the same person, cut into 20 mm lengths and attach tape to both ends. In addition, the instant adhesive and epoxy resin are used to completely bond the hair and the tape. After measuring the diameter of the hair, this sample was immersed for 5 minutes in the saale containing distilled water. Then, the stress at the time of extending | stretching at the speed | rate of 2 mm / min is measured using the TENSILON YTM-II-20 (made by ORIENTEC) in the initial elastic modulus in an unsoftened state (it shows the value in 0 minutes hereafter.). Then, the obtained data was calculated | required using the analysis program (calculation of the inclination of the initial stage at the time of making elongation of X axis | shaft and making Y-axis a stress, so-called inclination of a hook). About 1 g of the 1st agent of an Example and a comparative example was apply | coated to these samples, and the initial elastic modulus after 5 minutes, 10 minutes, 15 minutes, and 30 minutes was measured.

As is clear from the results of Table 1, the first agent for correcting curls of the present invention (Examples 1 to 5) is a compound in which [A] to [D] is blended. Since the compounding ratio of A] component was 1 mass part or more and 15 mass parts or less, the silhouette after a procedure was favorable and the return of a bend did not arise. In particular, in Examples 1, 2, and 5 whose compounding ratio of the component [A] with respect to 1 mass part of [B] components is 2 mass parts or more and 8 mass parts or less, the evaluation regarding return of a bend became the result very excellent. Moreover, in Example 5, although the nonionic surfactant of the [E] component was further mix | blended with the prescription of Example 1, viscosity adjustment became easy and it became easy to apply | coat.

On the other hand, Comparative Example 1, in which the anionic surfactant dimethyl cetyl phosphate and POE (10) cetyl ether phosphate are not blended, results in the return of swelling, and the comparison in which cetyl trimethylammonium chloride, which is a cationic surfactant, is not blended. Example 3 resulted in inferior silhouettes after the procedure. In Comparative Example 2, in which the reaction modifier [C] dithiodiglycolate diammonium was not blended, softening occurred, and the satisfactory result was not obtained with the return of the silhouette and the swelling.

Since the compounding ratio of the component [A] with respect to 1 mass part of [B] components was made into the comparative example 4 smaller than 1 mass part, the silhouette after a procedure became inferior. Moreover, since the compounding ratio of the [A] component with respect to 1 mass part of [B] components was mix | blended more than 15 mass parts, the comparative example 5 resulted in the return of a bend.

The result of the time-dependent change of the initial elastic modulus of the hair treated with the composition of Example 1 and the comparative example 2 is shown in FIG. The initial modulus decreases as the hair softens. Therefore, the softening degree increases with the decrease of the initial elastic modulus.

As is clear from Fig. 1 and Table 1, the degree of decrease of the initial modulus of elasticity of Example 1 is 0.04 GPa in 10 minutes after the softening is most advanced and 15 minutes after the softening proceeds relatively gently. On the other hand, the fall of the initial elasticity modulus in 10 minutes after 15 minutes of the comparative example 2 is 0.08 GPa. In addition, when it is left until 30 minutes, the fall of the initial elasticity modulus of Example 1 after 15 minutes is 30 minutes after 0.02 GPa, while the fall degree after 15 minutes of comparative example 2 is 0.06 GPa It is. From these, it turns out that the fall of the initial stage elastic modulus of Example 1 is gentle compared with the fall of the comparative example 2. In addition, in the case of the comparative example 2, the initial elasticity modulus after 30 minutes has fallen to 0.26 GPa, and it can assume that over softening is occurring. Thereby, it is thought that the hair was damaged and spread, or the hair tip was scattered and did not become the desired silhouette.

In addition, even if two weeks passed after the procedure, these phenomena were not resolved, so evaluation of the return of the bend was also a bad result. As described above, it was shown that the first agent for hair deformation of the present invention hardly occurs over time in hair, and in particular, it is easy to control the degree of softening of the hair after the deformation treatment with respect to soft hair.

As described above, since the first agent for modifying hair of the present invention can control the degree of softening of the hair at the time of the hair treatment, excessive softening of the hair, excessive decrease in volume of the hair after curling, and recovery of curling It is considered to make it hard to arise, and it is used suitably as the 1st agent for curling hair straightening etc. which are performed to hair of a type | mold hair type.

Claims (6)

[A] cationic surfactants,
[B] anionic surfactants,
[C] dithiodiglycolic acid or its salt, and
[D] reducing agent
Is formulated,
[B] The first agent for hair deformation, wherein the blending amount of the [A] cationic surfactant to 1 part by mass of the anionic surfactant is 1 part by mass or more and 15 parts by mass or less. The first agent for modifying hair according to claim 1, wherein the cationic surfactant [A] is an alkyl quaternary ammonium salt. The first agent for modifying hair according to claim 1, wherein a compounding amount of the cationic surfactant [A] is 0.8% by mass or more and 5.0% by mass or less. The first agent for modifying hair according to claim 1, wherein a nonionic surfactant [E] is further blended. The first agent for modifying hair according to claim 1, which is used as a first agent for correcting curls. The first agent for correcting curls according to claim 5,
Curly hair straightening second agent that contains at least oxidizing agent
Curly hair straightener kit comprising a.

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