JP5213409B2 - Two-component hair treatment composition and hair treatment method - Google Patents

Description

  The present invention uses a two-component hair treatment composition capable of imparting a smooth feel and softness to the treated hair, and capable of suppressing the chili and spread of the hair tip, and the hair treatment composition. The present invention relates to a method for treating damaged hair.

  With the recent trend of various hairstyles, chemical action by hair color, bleach, perm, etc., and physical action by heat of dryer, shampoo, brushing, etc. are added to hair. Due to these various actions, the cuticle on the hair surface is turned up, peeled off, or a gap is formed between the cuticle layers, and the damage degree of the hair is increasing. Moreover, since the defense function with respect to the effect | action from the outside falls because the hair surface receives damage, the damage of hair will advance further rapidly by such an effect | action from the outside.

  Furthermore, the chemical action by hair color, bleach, perm, etc. cuts the chemical bonds inside the hair as well as the hair surface, thus weakening the hair structure itself. That is, such chemical action causes proteins, lipids, and the like to flow out from the inside of the hair, and the hair becomes hollow.

  Since hair does not have a self-healing function, it can be repaired internally by continuously applying hair care products that have a high penetration effect into damaged hair as described above. It is common.

  However, if the degree of damage is high, the hair after drying that has been internally repaired with the above-mentioned hair care product will feel crispy or spread over the hair ends, so make a hairstyle. It was an obstacle.

  Therefore, by incorporating various silicones such as dimethyl silicone, highly polymerized dimethyl silicone, amino-modified silicone, polyether-modified silicone, and dimethiconol into the hair treatment applied to the hair in the state as described above, external repair of the hair is performed. To improve the situation as described above. Among them, dimethiconol has a higher affinity with other ingredients commonly used in hair treatments compared to, for example, methylpolysiloxane, and it has a good affinity with hair and skin, so it is moist and moisturized. Used to give a touch.

  For example, Patent Document 1 discloses a non-aqueous hair treatment agent containing amino-modified silicone, dimethiconol, cyclic silicone, and liquid paraffin. According to the hair treatment agent disclosed in Patent Document 1, the use of amino-modified silicone, which has an extremely high affinity with hair and skin due to the presence of amino groups, in combination with dimethiconol, imparts moist feeling and flexibility to the hair. Can do.

JP 2006-249002 A

  However, while the hair treatment agent disclosed in Patent Document 1 can give a moist feeling to the hair, the effect of imparting a smooth feel to the hair is not sufficient, and the development of a hair treatment that can exhibit such an effect is also possible. Desired.

  The present invention has been made in view of the above circumstances, and its purpose is to provide hair that can be given a smooth feel and softness even to highly damaged hair, and that can suppress chili and spread of the hair tips. The object is to provide a treatment composition and a hair treatment method using the composition.

［上記一般式（１）中、Ｒ^１およびＲ^２は、トリメチルシリル基または水素であり、それぞれ同じでも異なっていてもよく、Ｒ^３はメチル基またはヒドロキシル基であり、ｍは５０〜２０００、ｎは１〜５０、ａは１〜６、ｂは１〜４である］で表されるアミノ変性シリコーンを含有する組成物（Ａ）と、少なくとも、下記一般式（２）

［上記一般式（２）中、Ｘは１以上の整数である］で表されるジメチコノールを含有する組成物（Ｂ）とからなることを特徴とする２剤式ヘアトリートメント用組成物である。 The composition for hair treatment of the present invention that can achieve the above-described object is at least the following general formula (1).

[In the above general formula (1), R ¹ and R ² are a trimethylsilyl group or hydrogen, which may be the same or different, R ³ is a methyl group or a hydroxyl group, m is 50 to 2000, n 1 to 50, a is 1 to 6, b is 1 to 4, and a composition (A) containing an amino-modified silicone represented by formula (2)

It is a two-component hair treatment composition characterized by comprising a composition (B) containing dimethiconol represented by [in the above general formula (2), X is an integer of 1 or more].

  In addition, the hair treatment method of the present invention is a method for treating hair using the two-component hair treatment composition of the present invention. After applying the composition (A) to the hair, the composition (B Or the composition (A) is applied to the hair, the hair is washed with water, and then the composition (B) is applied to the hair.

  According to the present invention, it is possible to provide a two-component hair treatment composition capable of imparting a smooth feel and softness even to hair having a high degree of damage, and capable of suppressing the flickering and spreading of the hair tips. In addition, according to the hair treatment method of the present invention, it is possible to impart a smooth feel and softness to the hair, and to suppress the fluffiness and spread of the hair tips.

  The present invention is characterized in that the amino-modified silicone represented by the general formula (1) and the dimethiconol represented by the general formula (2) are contained in different compositions. .

  In the hair treatment agent disclosed in Patent Document 1, amino-modified silicone and dimethiconol are mixed to take a one-part form. According to the study by the present inventors, in the hair treatment agent, Amino-modified silicone and dimethiconol are adhered to each other. Therefore, when it is applied to hair, it is difficult to uniformly adhere amino-modified silicone and dimethiconol. It has been found that there is a possibility that the function of imparting a touched feeling) may be impaired to some extent.

  Therefore, in the present invention, a two-component hair treatment composition containing amino-modified silicone and dimethiconol in separate compositions is used, and the composition (A) containing amino-modified silicone is added to the hair. After applying, the composition (B) containing dimethiconol was applied to the hair. As a result, amino-modified silicone can be applied to the hair surface with good uniformity to form a good film, and further, dimethiconol can be applied with good uniformity on this film to form a good film. In addition, the functions of these amino-modified silicones and dimethiconols can be extracted to a higher degree, and even hair with a high degree of damage is given a smooth feel and softness to suppress the flickering and spreading of the hair tips. Made possible.

  The composition (A) according to the hair treatment composition of the present invention contains the amino-modified silicone represented by the general formula (1). "XF42-B1989 (trade name)", "XF42-C0330 (trade name)" (manufactured by Momentive Performance Materials Japan GK), "SM8904C (trade name)" (amino-modified silicone content 40% by mass, Toray / Dow Corning / Silicone).

  The content (blending amount) of the amino-modified silicone represented by the general formula (1) in the composition (A) allows a good film to be formed with dimethiconol according to the composition (B), and the effects of the present invention are achieved. From the viewpoint of ensuring better, it is preferably 0.3% by mass or more, and more preferably 2% by mass or more. However, if the amount of the amino-modified silicone in the composition (A) is too large, the hair after the treatment with the composition for hair treatment tends to have a sticky feel, so that the above general in the composition (A) The content (blending amount) of the amino-modified silicone represented by the formula (1) is preferably 10% by mass or less, and more preferably 4% by mass or less.

  Although there is no restriction | limiting in particular about the form of a composition (A), It is preferable to make a composition (A) into an emulsion at the point which can disperse | distribute amino-modified silicone favorably. In order to make the composition (A) into an emulsion, it can be prepared by a usual emulsification method by appropriately using components usually used in cosmetics (for example, various components described later).

  The viscosity of the composition (A) can be set to various values depending on the method used when applied to the hair, but if the viscosity is too low, dripping is likely to occur during application to the hair. Therefore, for example, it is preferably adjusted to 5000 mPa · s or more, and more preferably adjusted to 8000 mPa · s or more. In addition, if the viscosity of the composition (A) is too high, the spreadability on the hair tends to be reduced during application. Therefore, the viscosity is preferably adjusted to 30000 mPa · s or less, and 15000 mPa · s or less. It is more preferable to adjust to.

  Here, the viscosity of the composition (A) and the viscosity of the composition (B) described later were measured using a Brookfield viscometer with a No. 4 rotor under conditions of 25 ° C. and 12 rpm. The viscosity after 2 seconds.

  The composition (B) according to the hair treatment composition of the present invention contains dimethiconol represented by the general formula (2), and dimethiconol is a modified product in which hydroxyl groups are bonded to both ends. It means dimethylpolysiloxane.

  X in the general formula (2) is preferably 300 or more, more preferably 1000 or more in that the synergistic effect with the amino-modified silicone compounded in the composition (A) is improved. Preferably it is 5000 or less, More preferably, it is 2500 or less.

  Specific examples of dimethiconol represented by the general formula (2) include, for example, “XF3905A (trade name)” (X = 300), “YF3802A (trade name)” (X = 1300), “YF3897 (trade name). ) "(X = 3400) (above, manufactured by Momentive Performance Materials Japan GK).

  The content (blending amount) of dimethiconol represented by the above general formula (2) in the composition (B) makes it possible to satisfactorily form a film with the amino-modified silicone according to the composition (A), and to achieve the effects of the present invention. From the viewpoint of ensuring better, it is preferably 0.01% by mass or more, and more preferably 0.5% by mass or more. However, if the amount of dimethiconol in the composition (B) is too large, it becomes a sticky feel and it may be difficult to make a desired hairstyle. Therefore, it is represented by the general formula (2) in the composition (B). The content (blending amount) of dimethiconol is preferably 5% by mass or less, and more preferably 1% by mass or less.

  In addition, the dimethiconol represented by the general formula (2) has a high degree of polymerization and becomes high viscosity when, for example, X exceeds 2000, and the liquid breakage may deteriorate when blended into the composition (B). It may be difficult to disperse uniformly in the composition (B). In such a case, by diluting dimethiconol with a low-viscosity silicone, these problems can be avoided and the operability of dimethiconol can be enhanced. That is, the composition (B) may be blended with a low-viscosity silicone. In particular, when blending dimethiconol with a high degree of polymerization (for example, those having X exceeding 2000), a low-viscosity silicone is also blended. It is more preferable.

The kinematic viscosity of the low-viscosity silicone used for the composition (B) is preferably 50 mm ² / s or less, more preferably 30 mm ² / s or less, preferably 0.5 mm ² / s or more, more preferably 0. .8 mm ² / s or more. In addition, kinematic viscosity here is the value measured on 25 degreeC conditions using the Ubbelohde type | mold viscosity meter according to prescription | regulation of the 1st method of a makeup original group general test method.

  Examples of the low-viscosity silicone include dimethyl silicone and cyclic silicone, and dimethyl silicone is more preferable because it has a greater effect of imparting a soft and smooth feel to the hair. Examples of commercially available low-viscosity silicones that can be used include, for example, “TSF451-10A (trade name)” and “TSF451-20A (tradename)” for dimethyl silicone (above, Momentive Performance Materials Japan GK ), “SH200C Fluid (20CS) (product name)” (manufactured by Toray Dow Corning Silicone Co., Ltd.), etc., and “TSF405 (product name)” (Momentive Performance Materials Japan, Ltd.) ), “DC345 Fluid (trade name)” (manufactured by Toray Dow Corning Silicone) and the like.

  The content (blending amount) of the low-viscosity silicone in the composition (B) is preferably 2 to 10 times the content (blending amount) of dimethiconol, and by using such an amount, the operation of dimethiconol The sex can be increased.

  Although there is no restriction | limiting in particular about the form of a composition (B), Since the application location of a composition (B) is easy to discriminate | determine and application | coating becomes easy, it can make a composition (B) into an emulsion. preferable. In order to make the composition (B) into an emulsion, components usually used in cosmetics (for example, various components described later) can be appropriately used and prepared by a usual emulsification method.

  The viscosity of the composition (B) can be set to various values depending on the method used when applied to the hair, but if the viscosity is too low, dripping is likely to occur during application to the hair. Therefore, for example, it is preferably adjusted to 5000 mPa · s or more, and more preferably adjusted to 8000 mPa · s or more. In addition, when the viscosity of the composition (B) is too high, the spreadability on the hair tends to be reduced during application. Therefore, the viscosity is preferably adjusted to 30000 mPa · s or less, and 15000 mPa · s or less. It is more preferable to adjust to.

  The composition (A) and the composition (B) usually contain water in addition to the amino-modified silicone and dimethiconol. It is preferable that content of the water in a composition (A) and a composition (B) is 50-95 mass%, for example.

  In the composition (A) and the composition (B), various components used in normal cosmetics can be appropriately blended as components other than the above-described various components as long as the effects of the present invention are not impaired. . Examples of components that can be blended in the composition (A) and the composition (B) include surfactants, polymers, alcohols, fats and oils, esters, hydrocarbons, fatty acids, polyhydric alcohols, sequestering agents, and oxidation agents. Examples thereof include an inhibitor and a pH adjuster.

  Examples of the surfactant include monoalkyl quaternary ammonium salts (such as lauryl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, lauryl trimethyl ammonium bromide, cetyl trimethyl ammonium bromide, stearyl trimethyl ammonium bromide). , Dialkyl type quaternary ammonium salts (distearyl dimethyl ammonium chloride, dicocoyl dimethyl ammonium chloride, dicetyl dimethyl ammonium chloride, etc.), benzalkonium type quaternary ammonium (benzalkonium chloride, stearyl dimethyl benzyl ammonium chloride, etc.) Cationic surfactant: coconut oil fatty acid triethanolamine, coconut oil fatty acid potassium, polyoxyethylene lauryl ether acetic acid, lauro Sodium luglutamate, lauroylmethylalanine, palm oil fatty acid sodium methyltaurate, sodium tetradecenesulfonate, sodium lauryl sulfate, sodium polyoxyethylene lauryl ether sulfate, dicetyl phosphate, dioleyl phosphate, polyoxyethylene lauryl ether phosphate, poly Anionic surfactants such as oxyethylene cetyl ether phosphate and polyoxyethylene oleyl ether phosphate; polyoxyethylene cetyl ether, polyoxyethylene polyoxypropylene lauryl ether, polyethylene glycol monolaurate, ethylene glycol monostearate monostearate , Polyoxyethylene (20) sorbitan stearate, polyoxyethylene hydrogenated castor oil, polyoxyisostearate Nonionic surfactants such as tylene (3) sorbitol, glyceryl monostearate, sorbitan monostearate, poly (2-10) glyceryl monostearate, sucrose fatty acid ester; 2-alkyl-N-carboxyl And amphoteric surfactants such as methyl-N-hydroxyethylimidazolinium betaine, sodium laurylaminopropionate, coconut oil alkylbetaine, laurylhydroxysulfobetaine, and the like.

  Examples of the polymer include sodium polyacrylate, carboxyvinyl polymer, hydroxyethyl cellulose, polyvinyl pyrrolidone and the like. Examples of alcohols include lower alcohols such as ethyl alcohol, isopropyl alcohol, butyl alcohol, and benzyl alcohol; higher alcohols such as lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, and behenyl alcohol.

  Examples of the fats and oils include shea fat, wheat germ oil, rice bran oil, macadamia nut oil, meadow home oil, and egg yolk oil. Examples of esters include isopropyl myristate, myristyl myristate, stearyl stearate, isostearyl laurate, cetyl isooctanoate, octyldodecyl oleate, hexyl 2-ethylhexanoate, di-2-ethylhexyl succinate, dioctyl succinate, Examples thereof include phytosteryl isostearate and isononyl isononanoate. Examples of the hydrocarbon include candelilla wax, microcrystalline wax, jojoba oil, beeswax, carnauba wax, light isoparaffin, light liquid isoparaffin, squalane, ceresin, paraffin, liquid paraffin, liquid isoparaffin, petrolatum and the like.

  Examples of fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, octanoic acid, isostearic acid, 12-hydroxystearic acid, undecylenic acid, and the like. Examples of the polyhydric alcohol include ethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, glycerin, polyglycerin, and 1,3-butylene glycol.

  Examples of the sequestering agent include alanine, edetic acid, disodium edetate, and diethylenetriaminepentaacetic acid. Examples of the antioxidant include dl-α-tocopherol, dibutylhydroxytoluene, erythorbic acid, anhydrous sodium sulfite and the like. Examples of the pH adjusting agent include acids such as citric acid, phosphoric acid, malic acid, tartaric acid, and lactic acid; alkaline agents such as ammonia, sodium hydroxide, triethanolamine, and arginine.

  The pH of the composition (A) is preferably 6 or more, and more preferably 7 or more, from the viewpoint that the action of imparting a smooth feel to the hair becomes stronger. However, if the pH of the composition (A) is too high, the safety may be impaired. Therefore, the pH is preferably 10 or less, and more preferably 8 or less.

  Further, the pH of the composition (B) is preferably 4 or more, more preferably 5 or more, from the viewpoint that the action of imparting a smooth feel to the hair becomes stronger. However, if the pH of the composition (B) is too high, the hair feel tends to be light and fits poorly, so the pH is preferably 8 or less, and more preferably 7 or less.

  The pH of the composition (A) and the composition (B) can be adjusted by using the above pH adjuster as necessary.

  In treating hair with the two-component hair treatment composition of the present invention, the composition (A) is first applied to the hair, and then the composition (B) is applied to the hair. The hair coated with the composition (A) may be washed with water and then the composition (B) may be applied. The hair coated with the composition (A) may be washed without washing with water. May be applied. The hair after application of the composition (B) may be washed with water and dried.

  Hereinafter, the present invention will be described in detail based on examples. However, the following examples do not limit the present invention. In Table 1 below, the total amount of each component is 100% for the entire base composition, Table 2 for the entire composition (A), and Table 3 for the entire composition (B). However, the% is mass%, and in these tables, the display of the% is omitted and only the numerical value indicating the blending amount is displayed.

<Preparation of base composition>
Stearyltrimethylammonium bromide [“Kachinal STB-70 (trade name)” manufactured by Toho Chemical Industry Co., Ltd.], cetyl alcohol [“Calcoal 6098 (trade name)” manufactured by Kao Corporation], and stearyl alcohol [“Calcoal 8098” manufactured by Kao Corporation Product name) ”] was mixed at the composition shown in Table 1 and dissolved at 75 ° C., added to purified water at 80 ° C. or higher, and emulsified using Three-One Motor [“ BLh1200 (product name)] manufactured by HEIDON ”. And then cooled to prepare a base composition.

  In Table 1, “with a total of 100” in the column of purified water means that the total amount of each component other than purified water constituting the base composition is 100% by adding the amount of purified water. Means.

<Preparation of composition (A)>
The components shown in Table 2 were mixed using the composition shown in Table 2 using a three-one motor ["BLh1200 (trade name)" manufactured by HEIDON Co., Ltd.], and compositions (A-1) to (A-) that were emulsions In Table 2, the pH and viscosity of the compositions (A-1) to (A-4) are also shown.

In Table 2, “with a total of 100” in the column of purified water means that the total amount of each component other than purified water constituting the compositions (A-1) to (A-4) is the amount of purified water. In addition, it means that it is made 100%. In “SM8904C”, R ¹ and R ² in the general formula (1) are hydrogen, and R ³ is a hydroxyl group. Furthermore, in “XF42-B1989”, R ¹ and R ² in the general formula (1) are trimethylsilyl groups and R ³ is a methyl group, m = 50 to 300, n = 1 to 10, a = 3, b = 2.

<Preparation of composition (B)>
The components shown in Table 3 were mixed using the composition shown in Table 3 using a three-one motor ["BLh1200 (trade name)" manufactured by HEIDON Co., Ltd.], and compositions (B-1) to (B-) which were emulsions In Table 3, the pH and viscosity of the compositions (B-1) to (B-10) are also shown.

  In Table 3, “with a total of 100” in the column of purified water means that the total amount of each component other than purified water constituting the compositions (B-1) to (B-10) is the amount of purified water. In addition, it means that it is made 100%. Moreover, the numerical value of “X” described in the column of dimethiconol represents the numerical value of X in the general formula (2). Furthermore, dimethicone is a low viscosity silicone and cyclomethicone is a cyclic silicone.

  An evaluation hair bundle and an evaluation wig used in Experiment 1 and Experiment 2 described later were produced as follows.

<Production of evaluation hair bundle>
A plurality of hairs having a length of 20 cm that had not been subjected to chemical treatment were weighed by 2.5 g to prepare one hair bundle.

  Hair is most chemically damaged when hair color and perm are applied. Therefore, each hair bundle was subjected to bleaching treatment and permanent wave treatment.

  First, it contains 6.0% by mass of a 35% by mass hydrogen peroxide solution and 100% by mass with purified water, and 8.5% by mass of 25% by mass ammonia water. A bleaching agent for bleaching treatment was prepared by mixing an equal amount of 100% by mass of the total amount.

  In addition, as the first agent of permanent wave agent, DL-cysteine hydrochloride 5.5% by mass, acetylcysteine 0.5% by mass, 50% by mass ammonium thioglycolate liquid 1.8% by mass, A solution containing 4.7% by mass of 80% by mass monoethanolamine solution, pH adjusted to 9.3 with aqueous ammonia (25% by mass), and 100% by mass with purified water was prepared. Furthermore, as a second agent of the permanent wave agent, sodium bromate 6.5% by mass, citric acid 0.1% by mass, phosphoric acid 0.05% by mass, sodium hydrogen monohydrogen phosphate 0.5% by mass %, And a total amount of 100% by mass with purified water was prepared.

  First, each hair bundle was immersed in 100 ml of the bleaching agent and shaken in a constant temperature shaker at 35 ° C. for 30 minutes to bleach each hair bundle and washed with purified water. Next, each hair bundle after washing is wound around a rod having a diameter of 10 mm, and the whole is immersed in 100 ml of the first agent for permanent wave, shaken in a constant temperature shaker at 35 ° C. for 30 minutes, and purified water is used. After washing, dry naturally, and further immersed in 100 ml of the permanent wave second agent, shake in a constant temperature shaker at 35 ° C. for 30 minutes, washed with purified water, and then air dried to perform permanent wave treatment. By performing, each hair bundle was damaged by chemical treatment to produce evaluation hair bundles.

<Preparation of wig for evaluation>
Prepare a plurality of wigs ("Font No .: FC121" manufactured by Fontaine) and add 60g of "Oldive C13-CL (trade name)" manufactured by Milbon and "Oldive Oxidane 6% (trade name)" manufactured by Milbon. A 60 g mixed product was applied and heated using a warmer for 30 minutes so that the wig surface was 45-50 ° C. Thereafter, the hair of the wig was washed with a normal shampoo and dried. Next, after applying 80ml of the same permanent wave first agent used for the treatment of the hair bundle with a dropper so as to spread over the entire wig, wrap the entire wig with a wrap and leave it at about 35 ° C for 40 minutes. did. Thereafter, the first permanent wave agent was washed from the wig, and the same permanent wave second agent 80 ml used for the treatment of the hair bundle was applied with a dropper so as to spread over the entire wig, and left at room temperature for 20 minutes. Thereafter, the wig was washed with water and dried to obtain an evaluation wig damaged by chemical treatment by hair color and permanent wave treatment. In the evaluation with the evaluation wig, the hairs were equally divided on the left and right sides, and only one side was treated with the hair treatment composition.

<Experiment 1>
As shown in Table 4, compositions for hair treatment of Examples 1 to 15 and Comparative Examples 1 to 3 were configured by combining the composition (A) and the composition (B).

  Each of the hair bundle for evaluation and the wig for evaluation was washed with “Deces Auf Shampoo A (trade name)” manufactured by Milbon, and then towel-dried. Next, the composition (A) [(A-1) to (A-4)] is firmly applied to the evaluation hair bundle in an amount of 0.5 g and to the evaluation wig in an amount of 5 g, and then washed with water. Without doing this, 0.5 g of the composition (B) [(B-1) to (B-10)] was applied firmly to the evaluation hair bundle and 5 g to the evaluation wig. Then, after being left for 2 minutes, washed with water and dried, the following evaluation was performed.

  First, the softness and smoothness of the hair after the hair treatment treatment were evaluated by the evaluation hair bundle. For each of the softness and smoothness of the hair, each of 10 professional panelists evaluated according to the following evaluation criteria, and the average value of the scores of all panelists was calculated.

(A) Evaluation criteria for the softness of hair Remarkably soft ... +2
There is some softness +1
Not soft ... 0

(B) Evaluation criteria for smoothness of hair
+1
Not smooth ... 0

  In addition, the above-described evaluation wig was used to evaluate the degree of chili and spread of the hair tip after the hair treatment treatment. Each of the ten expert panelists evaluated the fluffiness and spread of the hair according to the following evaluation criteria, and the average value of the scores of all panelists was calculated.

(C) Evaluation criteria for the degree of chili and spread of the hair tip Both the chirp and spread of the hair tip are improved. +3
There is a slight flicker at the hair end, but the spread has been improved ... +2
There is a chili of the hair tip, but the spread has been improved slightly +1
Narrowing and spreading of hair ends have not been improved ... 0

  The evaluation results are also shown in Table 4.

  As is apparent from the results shown in Table 4, the hair treated with the composition (B) containing dimethiconol after the composition (A) containing the amino-modified silicone was soft and smooth. There is little fuzziness of the hair tip, and the spread of the hair can be effectively suppressed.

<Experiment 2>
Experiment 1 except that the composition for hair treatment of Examples 2 to 6 and the hair bundle for evaluation and the wig for evaluation applied with the composition (A) were washed with water and then the composition (B) was applied. The hair bundle for evaluation and the wig for evaluation were subjected to hair treatment in the same manner as in Example 1, and in the same manner as in Experiment 1, the softness of the hair after treatment, the smoothness, the degree of chili and the spread of the hair tips were evaluated. The results are shown in Table 5.

  As is apparent from the results shown in Table 5, even when a rinsing step is added between the application of the composition (A) to the hair and the application of the composition (B) to the hair, the hair is soft and smooth. Can be sufficiently imparted, and the fluffiness and spread of the hair tips can be suppressed.

Claims (4)

At least the following general formula (1)

[In the above general formula (1), R ¹ and R ² are a trimethylsilyl group or hydrogen, which may be the same or different, R ³ is a methyl group or a hydroxyl group, m is 50 to 2000, n 1 to 50, a is 1 to 6, b is 1 to 4, and a composition (A) containing water ,
At least the following general formula (2)

A two-component hair treatment composition comprising: a dimethiconol represented by the general formula (2), wherein X is an integer of 1 or more ; and a composition (B) containing water. object.
  The composition for two-component hair treatment according to claim 1, wherein the amount of dimethiconol in the composition (B) is 0.01 to 5% by mass.   X in General formula (2) is 300-5000, The composition for 2 agent type hair treatment of Claim 1 or 2. In treating hair using the two-component hair treatment composition according to any one of claims 1 to 3,
After applying the composition (A) to the hair, the composition (B) is applied to the hair, or
A method for treating hair, comprising applying the composition (A) to hair, washing the hair with water, and then applying the composition (B) to the hair.