JP2011093832A - Hair treating agent - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hair treating agent which has appropriate smoothness, is easily spreaded by the hands, has good handling properties, and can maintain a stabilized dispersion state without causing oil phase-separation. <P>SOLUTION: The hair treating agent is of an oil-in-water emulsion form and comprises a higher alcohol [A], a cationic surface active agent [B], and hydroxypropyl starch phosphate [C] and the compounding amount of the higher alcohol [A] based on the total amount of the hair treating agent is less than 3 mass%. As the higher alcohol, a 16-22C saturated alcohol is preferably used. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a hair treatment agent that has excellent handling properties and is in the form of a stable emulsion, a hair treatment material comprising the hair treatment agent, and a hair treatment method using the hair treatment agent.

  The cationic surfactant is considered to have an action of selectively adsorbing at a site where a hair protein is damaged and a free carboxyl group is present, and covering and repairing such a damaged site. Because of such properties, the cationic surfactant is blended as a hair protecting component in a hair treatment agent in the form of an oil-in-water emulsion (O / W emulsion).

  On the other hand, it is not for hair washing that assumes washing with hot water after application, i.e. for in-bath treatment, but it is applied after hair washing and towel drying has been completed and is not washed, i.e., out bath In recent years, the development of hair treatment agents for treatment has been promoted.

  When using a hair treatment agent containing a cationic surfactant as described above as a hair treatment agent in the form of an oil-in-water emulsion for out-bath treatment without washing, in order to have a repairing action against hair damage In order to stabilize the emulsion, that is, to suppress oil phase separation, it is necessary to add a certain amount of higher alcohol. However, when a large amount of higher alcohol is blended with such a hair treatment agent in the form of an oil-in-water emulsion, the hair treatment agent becomes hard and difficult to extend by hand, resulting in poor handling properties. Therefore, oil-in-water that has moderate smoothness (softness), is easy to extend by hand, has good handling properties, and can maintain a stable dispersed state without causing oil phase separation. There is a strong demand for the development of hair treatment agents for out bath treatments in the form of mold emulsions.

  JP-A-2005-255644 discloses a cosmetic containing a cationic surfactant and a sugar phosphate ester and / or a salt thereof used in a non-washing manner. In addition, in this cosmetic, in this cosmetic, by using a phosphate ester of sugar and / or a salt thereof in combination with a cationic surfactant, an action to reduce irritation to the skin or mucous membrane by this surfactant Is obtained. However, in this publication, in a hair treatment agent in the form of an oil-in-water emulsion for out bath treatment, an appropriate smoothness is imparted to obtain good handling properties, and at the same time, a stable dispersed emulsion is obtained. There is no mention of any purpose or issue. Furthermore, in the examples of the publication, only cosmetics using a relatively large amount of higher alcohol are disclosed. Such cosmetics can stabilize the emulsion, but are not smooth enough to be easily extended by hand, and it is considered that good handling properties cannot be obtained.

JP 2005-255644 A

  The present invention has moderate smoothness (softness), is easy to extend by hand, has good handling properties, and can maintain a stable dispersed state without causing oil phase separation. It is an object to provide a hair treatment agent in the form of an oil emulsion.

  As a result of intensive studies, the inventor used hydroxypropyl starch phosphoric acid in addition to a higher alcohol and a cationic surfactant as a blending component, thereby using the higher alcohol in a predetermined small blending amount. Even so, it has been found that it is possible to achieve both good handling properties and a stable dispersion state of the emulsion, and the present invention has been completed.

That is, the hair treatment agent according to the present invention is
[A] higher alcohol,
[B] A hair treatment agent in the form of an oil-in-water emulsion in which a cationic surfactant and [C] hydroxypropyl starch phosphoric acid or a salt thereof are blended, wherein the blending amount of the above [A] higher alcohol is 3% by mass It is characterized by being less than.

  Since this hair treatment agent in the form of an oil-in-water emulsion contains a cationic surfactant, it exhibits a covering / protecting effect on the damaged part of the hair. In addition, since the hair treatment agent has a higher alcohol content of less than 3% by mass, it has moderate smoothness, is easy to extend by hand, and has good handling properties. . In addition, the hair treatment agent maintains a stable dispersion state without causing oil phase separation by blending hydroxypropyl starch phosphate with the higher alcohol even if the higher alcohol is used in a relatively small amount. It is possible. That is, according to the said hair treatment agent, favorable handling property and the stable dispersion state of an emulsion can be obtained simultaneously.

  In the hair treatment agent, it is preferable to use a saturated alcohol having 16 to 22 carbon atoms as [A] higher alcohol. Sufficient handling and dispersion stability of the emulsion can be obtained by adding a predetermined amount of these higher alcohols together with hydroxypropyl starch phosphate or a salt thereof to the hair treatment agent.

  In the said hair treatment agent, it is preferable to use mono long chain alkyl ammonium, di long chain alkyl ammonium, or mixtures thereof as [B] cationic surfactant. Thus, by using mono-long chain alkyl ammonium as the [B] cationic surfactant, the handling property of the hair treatment agent can be further improved and the dispersion stability of the emulsion at room temperature can be further improved. Furthermore, by using a di-long chain alkyl ammonium as the [B] cationic surfactant, the dispersion stability of the emulsion not only at normal temperature but also at low temperature can be further improved.

  The dosage form of the hair treatment agent is preferably cream. By making the hair treatment agent into a creamy dosage form that contains sufficient moisture and has a certain degree of viscosity as described above, it is suitably used for an out bath treatment on the premise that no washing is performed. be able to.

  The hair treatment agent is preferably maintained in the dispersed state of the emulsion without oil phase separation even after the operation of freezing at −10 ° C. and then thawing at room temperature is repeated twice. Even after repeating such a normal temperature to low temperature cycle twice, by having sufficient stability that the dispersion state of the emulsion can be maintained, the commercial value of the hair treatment agent for dispersion stability is further increased. improves.

  By storing the hair treatment agent in a known pump-type discharge container, the hair treatment material can be constituted. By using the pump-type discharge container in this way, the flexibility with respect to the place of use and time is increased, and the convenience of the hair treatment agent suitable for out bath treatment can be further improved.

Moreover, the hair treatment method of the present invention comprises:
(1) a step of applying the hair treatment agent to the surface of the hair, and (2) a step of drying the hair coated with the hair treatment agent on the surface without washing.

  In this way, by using the hair treatment agent, it is possible to perform hair treatment by the out bath treatment method on the premise that the hair is not washed with hot water.

  As described above, the hair treatment agent according to the present invention is blended with a cationic surfactant, hydroxypropyl starch phosphate, and a predetermined amount of higher alcohol, so has a moderate smoothness and is extended by hand. It is easy and good handling properties can be obtained, and a stable dispersed state can be maintained without causing oil phase separation.

  The hair treatment agent of the present invention comprises [A] higher alcohol, [B] cationic surfactant, and [C] hydroxypropyl starch phosphate. Hereinafter, these components will be described sequentially.

[A] component: higher alcohol "Higher alcohol" here means alcohol having 6 or more carbon atoms. The higher alcohol that can be used in the hair treatment agent is not particularly limited, such as a straight chain alcohol, a branched alcohol, an unsaturated alcohol, and a saturated alcohol, but a saturated alcohol having 16 to 22 carbon atoms is preferable. As this higher alcohol, for example, cetyl alcohol, isocetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, octyldodecanol, myristyl alcohol and the like can be used. Only one type of higher alcohol used in the hair treatment agent of the present invention may be used, or a plurality of types may be used in combination. Of these higher alcohols, cetyl alcohol and stearyl alcohol are preferred from the viewpoint of a balance between good handling properties and dispersion stability of the emulsion.

  The compounding quantity of the higher alcohol of [A] component in the said hair treatment agent is less than 3 mass%. In a conventional hair treatment agent in the form of an oil-in-water emulsion, in order to maintain the dispersion stability of the emulsion, the higher alcohol is usually added in an amount considerably exceeding 3% by mass. On the other hand, in the said hair treatment agent, even if it mix | blends the compounding quantity of a higher alcohol with less than 3 mass% and a comparatively small quantity, [C] hydroxypropyl starch phosphoric acid mentioned later is mix | blended with such a higher alcohol. As a result, the dispersion stability of the emulsion can be maintained at a good level, and at the same time, sufficient smoothness of the hair treatment agent, that is, excellent handling properties can be obtained. Moreover, in the said hair treatment agent, as a minimum of the compounding quantity of the higher alcohol of [A] component, 0.3 mass% is good, 0.5 mass% is preferable, and 1 mass% is especially preferable. On the other hand, the upper limit of the amount of the higher alcohol as the component [A] is preferably 2% by mass.

[B] Component: Cationic Surfactant The cationic surfactant of the [B] component is not particularly limited as long as it is a known cationic surfactant such as quaternary ammonium used in a hair treatment agent. Examples of such cationic surfactants include behenyl trimethyl ammonium chloride, behenyl trimethyl ammonium methosulfate, stearyl trimethyl ammonium chloride, stearyl trimethyl ammonium bromide, mono long chain alkyl ammoniums such as cetyl trimethyl ammonium bromide, distearyl dimethyl ammonium Di-long-chain alkyl ammoniums such as chloride, dicetyldimethylammonium chloride, dicocoyldimethylammonium chloride, alkylamine oxides such as benzalkonium chloride and laurylamine oxide, N-coconut oil fatty acid acyl L-arginine ethyl DL- And coconut oil fatty acid esters such as pyrrolidone carboxylate. These cationic surfactants may be used alone or in combination of two or more. Here, the “long chain alkyl” means a linear or branched alkyl group having 8 or more carbon atoms, and the carbon number is preferably 16 or more and 22 or less.

  Among the above cationic surfactants, mono-long chain alkyl ammonium, di-long chain alkyl ammonium, or a mixture thereof is particularly preferable. By using mono-long chain alkylammonium as the cationic surfactant, moderate smoothness is imparted to the hair treatment agent, handling properties are further improved, and dispersion stability of the emulsion at room temperature (resistance to oil phase separation) Can be further improved. Moreover, the dispersion stability of the emulsion of a hair treatment agent not only at normal temperature but at low temperature can be further improved by using dilong chain alkyl ammonium as a cationic surfactant. According to the hair treatment agent of the present invention using a long-chain alkyl group having 16 carbon atoms (dicetyldimethylammonium, etc.) as the di-long-chain alkyl ammonium, the hair is treated as an out-bath treatment. The treated hair can be imparted with excellent hair-like slipping feeling (hereinafter also referred to as “hair-like slipping feeling”) and softness. From the viewpoint of optimizing these effects, it is most preferable to use a monolong-chain alkylammonium and a dilong-chain alkylammonium having a long-chain alkyl group having 16 carbon atoms in combination in the hair treatment agent.

  As a minimum of the compounding quantity of the cationic surfactant of [B] component in the said hair treatment agent, 0.05 mass% is preferable and 0.1 mass% is especially preferable. On the other hand, the upper limit of the amount of the cationic surfactant as the component [B] is preferably 5% by mass, and particularly preferably 2% by mass. By setting the blending amount of the cationic surfactant in the hair treatment agent to the above lower limit or more, it is possible to effectively exhibit the coating / protecting action of the cationic surfactant by adsorption to the damaged site of hair or skin protein. Moreover, the irritation | stimulation to the skin or mucous membrane by such surfactant can be suppressed by making the compounding quantity of a cationic surfactant below the said upper limit.

[C] component: hydroxypropyl starch phosphate 3% by mass of higher alcohol that contributes to the dispersion stability of the emulsion by using hydroxypropyl starch phosphate or its salt of [C] component in the hair treatment agent In spite of being set to a relatively small amount of less than, it is possible to achieve good dispersion stability. Such hydroxypropyl starch phosphoric acid or a salt thereof may be used in combination with the acid. Examples of the salt include alkali metal salts such as sodium salt and potassium salt, alkaline earth metal salts such as calcium and magnesium, organic amine salts such as ammonium salt, triethanolamine salt and triethylamine salt, lysine salt and arginine salt. And basic amino acid salts. As hydroxypropyl starch phosphoric acid, for example, commercially available products such as “Delica E-7” manufactured by Nissho Chemical Co., Ltd. and “Structure XL” manufactured by Nippon SC Co., Ltd. can be used.

  As a minimum of the compounding quantity of the hydroxypropyl starch phosphoric acid of the [C] component in the said hair treatment agent, 0.05 mass% is preferable and 0.1 mass% is especially preferable. On the other hand, the upper limit of the blending amount of the hydroxypropyl starch phosphate of the component [C] is preferably 5% by mass, and particularly preferably 2% by mass. By making the compounding quantity of the hydroxypropyl starch phosphoric acid in the said hair treatment agent more than the said minimum, the dispersion stability of an emulsion can be improved and oil phase separation can be prevented effectively. Moreover, by making the compounding quantity of a hydroxypropyl starch phosphoric acid below the said upper limit, generation | occurrence | production of stickiness etc. can be suppressed and a comfortable usability | use_condition can be maintained.

Hair Treatment Agent The “hair treatment agent” of the present invention is a treatment agent for performing care and care of hair. In particular, damaged hair is covered and protected by the above action of the surfactant contained in the hair treatment agent. The usage mode of the hair treatment agent is not particularly limited. Using the hair treatment agent, the hair is treated by applying it to the surface of the hair, and subsequently drying the hair coated with the hair treatment agent on the surface without washing. Also good.

  The dosage form when the hair treatment agent is used can be cream, emulsion, ointment, gel, or foam. Since these dosage forms contain sufficient moisture and at the same time have a certain degree of viscosity, the hair treatment agent of such a dosage form is preferably used for out bath treatment on the premise that no washing is performed. Is possible. Among the above dosage forms, a cream form in which the above-described action is effectively achieved is particularly preferable.

  The hair treatment agent is preferably maintained in the dispersed state of the emulsion without oil phase separation even after the operation of freezing at −10 ° C. and then thawing at room temperature is repeated twice. The hair treatment agent has a dispersion stability to such an extent that the dispersion state of the emulsion can be maintained (preventing the oil phase from being separated) even when the surrounding conditions are greatly changed. As a result, the reliability as the product value can be further increased.

  By storing the hair treatment agent in a known pump-type discharge container, a hair treatment material can be constituted. Thus, by combining the hair treatment agent with a pump-type discharge container, it can be easily carried in a state of being accommodated in the container, and can be used at a desired place and time. Accordingly, such a hair treatment material is more convenient for out bath treatment that does not require washing of the hair. The pump type discharge container is not particularly limited, and any known one can be used. For example, a pump-type discharge container has a pressing tool slidable in the vertical direction at the top of the container, and further has a discharge pipe extending from the contents of the container to the outside of the container, and moves the pressing tool downward. Thus, it is possible to use a configuration in which the pressure inside the container is increased, whereby the contents are discharged from the discharge pipe to the outside of the container. As a material of the main member of such a pump-type discharge container, a synthetic resin can be typically used. By making such a synthetic resin transparent or translucent, the amount of contents in the container can be confirmed visually.

  As long as the above effects intended by the present invention are not hindered, an appropriate amount of an optional component other than the [A], [B] and [C] components is added to the hair treatment agent. can do. Examples of such optional components include, but are not limited to, for example, polyhydric alcohols (excluding higher alcohol of [A] component), (glyceryl amidoethyl methacrylate / stearyl methacrylate) copolymer, nonionic surfactant, silicone , Hydrolyzed hyaluronic acid, and other hydrolysates.

  Examples of the polyhydric alcohol include ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, glycerin, diglycerin, 1,3-butylene glycol, erythritol, isoprene glycol, 1,2-pentanediol, and 2,4-hexane. Examples include diol, 1,2-hexanediol, 1,2-octanediol, and the like.

  Examples of the (glyceryl amidoethyl methacrylate / stearyl methacrylate) copolymer include a copolymer of glyceryl-N- (2-methacryloyloxyethyl) carbamate and stearyl methacrylate.

  Examples of the nonionic surfactant include polyoxyalkylene alkyl ether, glycerin fatty acid ester, polyalkylene glycol fatty acid ester, sorbitan fatty acid ester, sorbitan fatty acid ester ethylene oxide condensate, polyoxyethylene hydrogenated castor oil, polyoxy Examples include ethylene castor oil and polyoxyethylene lanolin. Further, as general examples of polyoxyalkylene alkyl ether, polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether (2E.O.), polyoxyethylene polyoxy Examples include propylene lauryl ether, polyoxypropylene cetyl ether, polyoxypropylene isocetyl ether, polyoxypropylene stearyl ether, and polyoxypropylene oleyl ether.

  Examples of the silicones include aminopropylmethylsiloxane / dimethylsiloxane copolymer (aminopropyl dimethicone), aminoethylaminopropylsiloxane / dimethylsiloxane copolymer (amodimethicone), aminoethylaminopropylmethylsiloxane / dimethylsiloxane. Amino-modified silicones such as copolymers (trimethylsilylamodimethicone), dimethicone, cyclomethicone, low viscosity dimethylpolysiloxane, high viscosity dimethylpolysiloxane, cyclic dimethylsiloxane (decamethylcyclopentasiloxane), methylphenylpolysiloxane, diphenyl Examples thereof include polysiloxane, silicone rubber, cation-modified polysiloxane, polyether-modified polysiloxane, and fluorine-modified polysiloxane.

  As the hydrolyzed hyaluronic acid, low molecular hyaluronic acid having an average molecular weight of 10,000 or less is mainly used. Such hydrolyzed hyaluronic acid can be produced by, for example, a method in which high molecular hyaluronic acid is dissolved in a buffer solution, hyaluronidase is added, and the enzyme is inactivated by incubating for several days. Hydrolyzed hyaluronic acid can be used in the form of a salt. Examples of such salts include sodium salts, potassium salts, basic amino acid salts and the like.

  Examples of other hydrolysates include hydrolyzed keratin and hydrolyzed collagen.

Hair treatment method The hair treatment method using the hair treatment agent of the present invention typically comprises a step of applying the hair treatment agent to the surface of the hair, and the hair coated with the hair treatment agent on the surface. A step of drying without washing. The drying here may be natural drying or ventilation drying, and heat may be applied as necessary. Before and after such hair treatment, other known treatments may be performed on the hair.

  As described above, the hair treatment agent has moderate smoothness, is easy to extend by hand, has good handling properties, and can maintain a stable dispersed state without causing oil phase separation. Since it is possible, the said hair treatment method using this hair treatment agent is applied suitably for the out bath treatment which does not wash away hair.

  Hereinafter, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to the following examples unless departing from the gist of the present invention.

Preparation of hair treatment agent [Example 1]
In water, 1% by weight of cetanol and 1% by weight of stearyl alcohol as higher alcohols, 0.2% by weight of stearyltrimethylammonium chloride as mono-long-chain cationic surfactants, dicetyldimethylammonium chloride as di-long-chain cationic surfactants. 8% by mass, hydroxypropyl starch phosphoric acid 0.4% by mass, 1,3-butylene glycol 2% by mass, (glyceryl amidoethyl methacrylate / stearyl methacrylate) copolymer 0.005% by mass, polyoxyethylene oleyl ether (2E O.) 0.05% by weight, 0.5% by weight aminopropyl dimethicone, 20% by weight dimethicone, 5% by weight cyclomethicone, 0.001% by weight hydrolyzed hyaluronic acid, and 0.001% by weight hydrolyzed collagen. To mix and disperse It was prepared creamy hair treatment of oil-in-water emulsion form.

[Examples 2-7, Comparative Examples 1-5]
Also in these examples, hair treatment agents were prepared in the same manner as in Example 1 except that the components and amounts were changed as described in Table 1.

Characteristic evaluation of hair treatment agents [ Evaluation of handling properties]
Using the hair treatment agent prepared as described above, three professional panelists evaluated the handling property (smoothness / easyness of extending by hand) according to the following criteria, and decided the evaluation by majority vote. . The evaluation results are shown in Table 1.
A: Smooth and very easy to extend.
○: There is a certain level of smoothness.
Δ: Feels sticky.
X: I feel hardness.

[Appearance evaluation during preparation]
The hair treatment agent prepared as described above was observed for the presence or absence of oil phase separation when left at room temperature for 1 hour after preparation, and evaluated as follows. The evaluation results are shown in Table 1.
A: Oil phase is not separated.
X: Oil phase is separated.

[Evaluation of emulsion stability over time]
The operation of cooling the hair treatment agent, which was confirmed not to be oil-phase separated in the above [Appearance evaluation during preparation], from room temperature to −10 ° C., freezing, and then thawing at room temperature was repeated. In the repetition of this normal temperature to low temperature cycle, it was observed at which time point the oil phase separation occurred and evaluated as follows. The evaluation results are shown in Table 1.
A: The oil phase did not separate even after repeating the normal temperature to low temperature cycle three times.
○: The oil phase was not separated after repeating the normal temperature to low temperature cycle twice, but the oil phase was separated after repeating the cycle three times.
Δ: The oil phase was not separated after performing the normal temperature to low temperature cycle once, but the oil phase was separated after repeating the cycle twice.
X: The oil phase was separated after one cycle of room temperature to low temperature.

[Evaluation of slipperiness of treated hair]
First, sample hair that was colored and damaged was prepared, and the sample hair was washed with shampoo and rinse. After washing, with the sample hair towel-dried, the above-mentioned hair treatment agent was applied to the hair surface and dried with warm air without washing. About this treated hair, three professional panelists evaluated the presence or absence (especially the presence or absence of a slipperiness like bare hair) according to the following references | standards, and decided evaluation by majority vote. The evaluation results are shown in Table 1.
A: There is a slippery feeling like hair.
○: The slipperiness is a little unsatisfactory.
(Triangle | delta): There is no change of a slipperiness before and after application | coating and drying of a hair treatment agent.
X: The slipperiness was worse than before application and drying of the hair treatment agent.

[Evaluation of softness of treated hair]
Similarly to the above [Evaluation of slipperiness of treated hair], the above-mentioned hair treatment agent is applied to the surface of the hair after washing the sample hair that has been colored and damaged and towel-dried. -Dried. Three professional panelists evaluated the treated hair according to the following criteria, and the evaluation was determined by majority vote. The evaluation results are shown in Table 1.
A: Strong softness is felt.
○: I feel a little soft.
(Triangle | delta): There is no change of softness before and after application | coating and drying of a hair treatment agent.
X: The softness was worse than before application / drying of the hair treatment agent.

47 panelists recruited from the general public were asked to perform hair treatment using the hair treatment agent of Example 1 in the same manner as described above [Evaluation of slipperiness of treated hair]. The questionnaire evaluation items and evaluation results (percentage of respondents who answered that they were good) were as follows.
Handleability during application (smoothness / easiness of spreading): 75%
Smoothness of finger after treatment (smoothness like bare hair): 93%
Natural moisturized hair after treatment: 82%
Natural gloss of hair after treatment: 76%

  As is clear from the results of Table 1 and the evaluation by the general panelists, according to the hair treatment agent of the present invention, hydroxypropyl starch phosphate was combined in spite of a small amount of higher alcohol of less than 3% by mass. It has been found that it is possible to obtain both good handling properties and a stable dispersion state of the emulsion by using it. Further, the hair treated with the hair treatment agent had a slipperiness and softness like bare hair. On the other hand, the hair treatment agent of each comparative example that did not contain hydroxypropyl starch phosphate is inferior in handling properties or emulsion stability, and imparts the above excellent effects to the hair. I couldn't.

  As described above, the hair treatment agent of the present invention can be easily extended by hand, can provide good handling properties, and can maintain a stable dispersion state without causing oil phase separation. It is suitably used for bath treatment type hair treatment.

Claims (7)

[A] higher alcohol,
[B] a hair treatment agent in the form of an oil-in-water emulsion in which a cationic surfactant and [C] hydroxypropyl starch phosphoric acid or a salt thereof are blended,
[A] The hair treatment agent, wherein the blending amount of the higher alcohol is less than 3% by mass.   [A] The hair treatment agent according to claim 1, wherein a saturated alcohol having 16 to 22 carbon atoms is used as the higher alcohol.   [B] The hair treatment agent according to claim 1 or 2, wherein mono-long-chain alkyl ammonium, di-long-chain alkyl ammonium, or a mixture thereof is used as the cationic surfactant.   The hair treatment agent according to claim 1, 2 or 3, wherein the dosage form is creamy.   The dispersion state of the emulsion is maintained without any oil phase separation even after the operation of freezing at -10 ° C and then thawing at room temperature is repeated twice. Hair treatment agent.   A hair treatment material comprising the hair treatment agent according to any one of claims 1 to 5 and a pump-type discharge container containing the hair treatment agent. (1) A step of applying the hair treatment agent according to any one of claims 1 to 5 to the surface of the hair, and (2) without washing the hair on which the hair treatment agent is applied. A hair treatment method comprising a drying step.