JP5140239B2 - Hair cosmetics - Google Patents

Description

  The present invention relates to a hair cosmetic, and more particularly to a hair cosmetic useful as a hair styling agent or the like that imparts cohesiveness to damaged hair that tends to spread under high humidity.

  Conventionally, a method using a film-forming polymer or an oil agent is widely known as a method for imparting cohesiveness to easily spreading hair. These impart hair cohesiveness by bonding the hairs together or making the hair heavier.

  However, in the case of a film-forming polymer having a strong adhesive force / adhesive force, the film is too hard and thus has problems such as stiffness. On the other hand, oil agents have problems such as stickiness. In either case, the unity and sustainability of the hair under high humidity is not sufficient.

  Accordingly, various studies have been made, and a technique that solves these problems on the touch surface using cationic polyvinyl alcohol is disclosed (for example, see Patent Document 1). There has also been proposed a hair cosmetic that uses cationized starch to prevent hair damage and imparts suppleness to hair (see, for example, Patent Document 2).

  Further, a hair cosmetic containing a modified silicone polymer, a cationic polymer and a silicone oil (for example, see Patent Document 3), and a hair cosmetic containing a cationic polymer and a siloxane compound (for example, see Patent Documents 4 and 5). Has also been proposed.

JP 09-124445 A JP 02-45410 A JP 05-148123 A JP 2002-187819 A Japanese Patent Laid-Open No. 11-349448

  However, there is no specific description of the unity sustainability under high humidity in the technology using the cationic polyvinyl alcohol to solve these problems on the touch surface.

  Furthermore, when used for spray-type hair cosmetics using non-aerosol type triggers and dispensers, etc., the sprayability of the liquid content is not as good as the aerosol type, depending on the type and combination of polymer and silicone, good spraying may occur. For example, there is a problem that liquid is discharged in a rod shape or clogging occurs due to continuous use.

  In addition, in the case of a non-aerosol type foamy hair cosmetic such as a pump former whose foaming power is lower than that of the aerosol type, depending on the polymer, the permeability of the mesh incorporated in the pump foam etc. is not sufficient, There was a problem that sufficient bubbles could not be formed. In addition, when amino-modified silicone is blended, there is a problem that sufficient foam cannot be formed because this amino-modified silicone functions as an antifoaming agent.

  On the other hand, in the hair cosmetics containing the modified silicone polymer, cationic polymer and silicone oil, and hair cosmetics containing the cationic polymer and the siloxane compound, the group persists under high humidity. Sex is not always enough. In particular, in the case of hair that has become damaged and spread easily due to fashionable coloring in recent years, the spread of hair under high humidity has become more prominent than ever, and an improvement is increasingly desired. In these publications, cationized starch is merely listed as an example of the cationic polymer, and amino-modified silicone is merely listed as an example of the silicone oil and the siloxane compound, and no description or suggestion of the above problem is recognized.

  Therefore, the present invention solves the above-mentioned problems, imparts cohesiveness to hair that is easily damaged and spread due to coloring, etc., maintains sufficient cohesiveness even under high humidity, and does not have stiffness or stickiness Another object of the present invention is to provide a hair cosmetic that gives a good feel and exhibits good spray characteristics or foaming characteristics even when used as a spray-type or foam-like hair cosmetic that does not use a propellant.

  As a result of earnest research, the present inventors have made hair cosmetics containing amino-modified silicone and cationized starch as a cationic polymer, so that they do not cause stickiness or stickiness, and are damaged by coloring or the like. It is found that the hair that has become easy to spread is given cohesiveness, can maintain sufficient cohesiveness even under high humidity, and can exhibit sufficient spraying characteristics or foaming characteristics to complete the present invention. It came to.

  That is, the hair cosmetic composition of the present invention contains an amino-modified silicone and a cationized starch as a cationic polymer. Moreover, the hair cosmetic composition of the present invention can be suitably used as a spray-type hair cosmetic composition or foamy hair cosmetic composition that does not use a propellant.

  According to the present invention, hair capable of imparting cohesiveness to hair that is easily damaged and spread due to coloring, etc., maintaining sufficient cohesiveness even under high humidity, and giving a good feel without stiffness or stickiness Cosmetics can be provided. Moreover, even when the hair cosmetic composition of the present invention is used as a spray-type or foam-like hair cosmetic composition that does not use a propellant, it can exhibit good spray characteristics or foam characteristics.

Hereinafter, embodiments of the present invention will be described.
The hair cosmetic composition of the present invention is characterized by containing at least amino-modified silicone and a cationized starch as a cationic polymer.

  Examples of the cationized starch used in the present invention include compounds having a repeating unit represented by the following chemical formula (1).

  In addition, as for the molecular weight of the whole compound which has a repeating unit represented by Chemical formula (1), 5-5 million are preferable, 100-3 million are more preferable, 1.5-2 million are more preferable. Further, the viscosity is preferably in the range of 50 to 1000 mPa · s (using Brookfield viscometer, measurement temperature 20 ° C.). Therefore, in the chemical formula (1), a combination of X and Y is preferably in the above molecular weight range or viscosity range.

  Since the hair cosmetic composition of the present invention contains the above cationized starch, even if it contains an amino-modified silicone having antifoaming properties, the foaming properties are good and the sprayability is also good.

  The amount of the cationized starch is not particularly limited as long as the effect of the present invention is not hindered, but is preferably 0.001 to 30% by mass, more preferably 0.01 to 20% by mass with respect to the total amount of the hair cosmetic. Preferably, 0.05 to 10% by mass is more preferable. If it is less than 0.001% by mass, the desired effect is not exhibited, and if it is 30% by mass or more, it is uneconomical, and problems such as flaking may occur.

  Examples of the amino-modified silicone used in the present invention include amino gum, ammonium-modified silicone, amino-modified silicone to which alkylene oxide is added, and those obtained by emulsifying them. Specifically, an aminopropylmethylsiloxane / dimethylsiloxane copolymer represented by the following chemical formula (2), an aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer represented by the following chemical formula (3), An aminoethylaminopropylsiloxane / dimethylsiloxane copolymer represented by the following chemical formula (4) is preferably used.

  Commercially available products that can be used as the amino-modified silicone used in the present invention include, for example, Amodimethicone Emulsion SM8704C (trade name) manufactured by Toray Dow Corning Silicone, and KT-1989 (trade name) manufactured by Toshiba Silicone. , XF42-B1989 (trade name), FZ-4671 (trade name), FZ-4672 (trade name), F4-116-04 (trade name) of Nihon Unicar Company, XS65-C0032 (trade name) of Shin-Etsu Chemical Co., Ltd. ), XS65-B4280 (product name), KF-8004 (product name), KF-8005 (product name), KF-8015 (product name), and the like. Of these, FZ-4671 and FZ-4672 correspond to the aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer represented by the chemical formula (3), and the amino acid represented by the chemical formula (4). SM8704C corresponds to the ethylaminopropylsiloxane / dimethylsiloxane copolymer, and this SM8704C (trade name) is most preferred.

  By containing the amino-modified silicone, the hair cosmetic composition of the present invention can improve hair stiffness and cohesiveness under high humidity. This is because the amino-modified silicone used in the present invention has excellent adsorptivity to damaged hairs that are more likely to spread than other silicone oils and siloxane compounds.

  The amount of these amino-modified silicones is not particularly limited as long as the effect of the present invention is not hindered, but is preferably 0.001 to 30% by mass, more preferably 0.01 to 20% by mass with respect to the total amount of the hair cosmetic. Preferably, 0.05 to 10% by mass is more preferable. If the amount is less than 0.001% by mass, the desired effect is not exhibited, and if it exceeds 30% by mass, it is not economical and may cause problems such as stickiness.

The mixing ratio of the cationized starch to the amino-modified silicone (amino-modified silicone / cationized starch) is in the range of 0.05 to 20, as is apparent from the evaluation results (Table 1) in Examples 1 to 12 described later. Is preferable, the range of 0.1-10 is more preferable, and the range of 0.2-5 is still more preferable. By setting it in this range, the cohesiveness under high humidity, the good feeling without stickiness and stickiness, and the foaming property can be improved at the same time.

  The hair cosmetic composition of the present invention further includes a vinylpyrrolidone / N, N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate, a chloromethacrylic acid choline ester polymer, a dimethylaminoethyl methyl chloride / acrylamide copolymer, You may contain the at least 1 sort (s) of cationic polymer chosen from the group which consists of a methyl vinyl imidazolium chloride / vinyl pyrrolidone copolymer.

  Examples of the vinyl pyrrolidone / N, N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate include compounds having a repeating unit represented by the following chemical formula (5).

  In addition, as for the molecular weight of the compound which has a repeating unit represented by the said Chemical formula (5), 100,000-2 million are preferable. Moreover, it is preferable that a viscosity exists in the range of 2000-200000 mPa * s (measurement temperature 25 degreeC). Accordingly, in chemical formula (5), m and n are preferably a combination such that the molecular weight range or the viscosity range is set.

  As said chloromethacrylic acid choline ester polymer, the compound which has a repeating unit represented by following Chemical formula (6) is mentioned, for example.

  The 1% viscosity of the compound having the repeating unit represented by the chemical formula (6) is preferably in the range of 1000 to 100000 mPa · s when spinde 6 is used in a Brookfield RVT viscometer (rotation speed 20 rpm), and 5000 to 20000 mPa · s. -S is more preferable and 8000-12000 mPa-s is still more preferable.

  Examples of the dimethylaminoethyl methyl chloride / acrylamide copolymer include compounds having a repeating unit represented by the following chemical formula (7).

  The molecular weight of the compound having the repeating unit represented by the chemical formula (7) is preferably 100,000 to 2,000,000, more preferably 500,000 to 1,000,000. Accordingly, in the chemical formula (7), m and n are preferably m << n and a combination that is in the molecular weight range. The cation concentration of this compound is preferably 1 to 10 mmol / g.

  Examples of the methyl vinyl imidazolium chloride / vinyl pyrrolidone copolymer include compounds having a repeating unit represented by the following chemical formula (8).

  The molecular weight of the compound having the repeating unit represented by the chemical formula (8) is preferably 10,000 to 200,000, and more preferably 20,000 to 80,000. Therefore, in chemical formula (5), x and y are preferably a combination that falls within the above molecular weight range. Moreover, 1-20 meq / g is preferable and, as for the cation activity of this compound, 3-10 meq / g is more preferable.

  Vinylpyrrolidone / N, N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate, chloromethacrylic acid choline ester polymer, dimethylaminoethyl methyl chloride / acrylamide copolymer, methyl vinyl imidazolium chloride / vinyl pyrrolidone copolymer When blending at least one selected from the group consisting of polymers, the blending amount is preferably 0.001 to 30% by mass with respect to the total amount of the hair cosmetic, and the total amount with the cationized starch is 0. 0.01 to 20% by mass is more preferable, and 0.05 to 10% by mass is even more preferable. If it is less than 0.001% by mass, the desired effect is not exhibited, and if it exceeds 30% by mass, it is uneconomical and may cause problems such as flaking.

  Moreover, the hair cosmetic composition of the present invention may contain an amphoteric polymer. By containing the amphoteric polymer, the unitary sustainability is further improved and the foam retention is improved.

  The amphoteric polymer used in the present invention is not particularly limited as long as the effects of the present invention are not hindered. For example, N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine / methacrylic acid alkyl ester Copolymer, N-methacryloylethyl-N, N-dimethylammonium / α-N-methylcarboxybetaine / butyl methacrylate copolymer, hydroxypropyl acrylate / butylaminoethyl methacrylate / octylamide acrylate copolymer, etc. Is mentioned. Among these, N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine / methacrylic acid alkyl ester copolymer is more preferable. Specifically, “Yuka Former” (trade name, manufactured by Mitsubishi Chemical Corporation) is preferable.

  The blending ratio of the total amount of the cationic polymer to the amphoteric polymer (total amount of the cationic polymer / amphoteric polymer) is not particularly limited as long as it does not interfere with the effect of the present invention. However, the total amount of the cationic polymer and the amphoteric polymer The blending ratio (total amount of cationic polymer / amphoteric polymer) is preferably 7 or more, more preferably 7 or more and 70 or less. If it is less than 7, unfavorable touches such as wobbling may occur, and if it exceeds 70, desired effects, that is, improvement in unity and persistence may not be exhibited.

  Moreover, the hair cosmetic composition of the present invention may further contain at least one selected from the group consisting of benzoic acid, benzoate, gallic acid derivatives, and polyoxyethylene sorbite fatty acid esters. By containing at least one selected from the group consisting of benzoic acid, benzoic acid salts, and gallic acid derivatives, the unitary sustainability is further improved, and a squeaky sensation is further improved for a hair cosmetic that is more preferable. Can be granted.

  The gallic acid derivative used in the present invention is not particularly limited as long as the effect of the present invention is not hindered. For example, gallic acid, m-digallic acid, dehydrodigallic acid, propyl gallate, octyl gallate, gallic acid Examples thereof include glycosides such as glycerides and glucoside / maltoside / mannoside of gallic acid. Among these, glycosides such as glucoside / maltoside / mannoside of gallic acid are preferable, and diglucosyl gallic acid is particularly preferable. One or more of these gallic acid derivatives can be used in combination.

Although it does not specifically limit as polyoxyethylene sorbite fatty acid ester used for this invention, For example, tetraoleic acid POE (6)-(60) sorbitol, dioleic acid POE (6)-(60) sorbitol, trioleic acid POE (6) to (60) Sorbite, distearic acid POE (6) to (60) Sorbite, tristearic acid POE (6) to (60) Sorbite, tetrastearic acid POE (6) to (60) Sorbite, dicaprylic acid POE (6) to (60) sorbite, tricaprylic acid POE (6) to (60) sorbitol, tetracaprylic acid POE (6) to (60) sorbitol, dilauric acid POE (6) to (60) sorbitol, trilauric acid POE ( 6) to (60) Sorbit, tetralauric acid POE (6) to (60 Sorbit, dimyristic acid POE (6) to (60) Sorbit, trimyristic acid POE (6) to (60) Sorbit, tetramyristic acid POE (6) to (60) Sorbit, dipalmitic acid POE (6) to (6) 60) Sorbite, tripalmitic acid POE (6) to (60) Sorbite, tetrapalmitic acid POE (6) to (60) Sorbite, diundecanoic acid POE (6) to (60) Sorbit, triundecanoic acid POE (6) to (60) Sorbit, tetraundecanoic acid POE (6) to (60) sorbit and the like.
Among these, tetraoleic acid POE (6) to (60) sorbit is more preferable, and tetraoleic acid POE (40) sorbit is most preferable.

  The amount of at least one compound selected from the group consisting of benzoic acid, benzoate, and gallic acid derivatives is not particularly limited as long as the effects of the present invention are not hindered, but is 0.001 to the total amount of the hair cosmetic. 10 mass% is preferable, 0.01-5 mass% is more preferable, 0.03-3 mass% is especially preferable. If it is less than 0.001% by mass, the desired effect is not exhibited, and if it exceeds 10% by mass, it is uneconomical and pH adjustment may be difficult. In addition, when using 2 or more types, it depends on the total amount.

  The hair cosmetic composition of the present invention is a component generally blended into hair cosmetics as desired, for example, surfactants, other silicones, other polymer compounds, amino acids, protein hydrolysates, metal sequestering agents, Alcohols, polyols, oils, ultraviolet absorbers, pH adjusters, antioxidants, oxidants, reducing agents, alkali agents, dyes, fragrances, antibacterial agents, bactericides, and propellants can be included.

  Since the hair cosmetic composition of the present invention has good sprayability and can form sufficient foam, it is suitable for use in spray-type hair cosmetic compositions and foam hair cosmetic compositions that do not use a propellant.

  That is, the hair cosmetic composition of the present invention can be characterized by being used as a spray-type hair cosmetic composition that does not use a propellant or as a foam hair cosmetic composition.

  Examples of the container whose usability is improved by using the hair cosmetic composition of the present invention include a non-aerosol type trigger spray container, a dispenser spray container, and a pump former container. As the pump former container (pump foam container), for example, as disclosed in Japanese Patent Application Laid-Open No. 2000-256138, a tank for storing the content liquid and an outlet provided in the tank for discharging the content liquid A pump part for discharging the content liquid stored in the tank from the outlet, an air mixing means for mixing air into the content liquid when the content liquid flows out from the outlet, and provided in the vicinity of the outlet Examples thereof include a pump-type container provided with a net-like member that causes the above-described content liquid mixed with air to flow and foam.

The hair cosmetic composition of the present invention can be applied as , for example, a styling agent (hair styling agent) or a treatment.

  Hereinafter, the present invention will be described in more detail based on examples. In addition, this invention is not limited to the following Example. In addition, all% in each example is the mass%, and is the numerical value (AI) converted into the pure part.

[Examples 1 to 12, Comparative Examples 1 to 4]
A composition having the composition shown in the following “Table 1” was prepared according to a conventional method and evaluated by the following method. The results are shown in “Table 1” below.

<Evaluation method>
[Moisture resistance]
A human hair bundle having a length of 30 cm and 10 g was bleached twice with a commercial bleaching agent to obtain damaged hair. 0.8 g of each composition shown in the following “Table 1” was applied to the hair bundle and air-dried, and the cross-sectional area of the hair bundle was determined from the width (long diameter and short diameter) of the hair bundle. Next, this hair bundle is hung in a thermostat of 30 ° C. and 95% RH (relative humidity), and the change rate from the initial value (for example, no change; 0%, 2 times) from the cross-sectional area of the hair bundle after 1 hour To 100%). Note that the rate of change of 30% or less is a level at which the spread of the hair bundle after 1 hour cannot be recognized in a sensory manner.

[No stickiness, sprayability, foam quality]
Each composition shown in the following “Table 1” was filled into a trigger spray container “M-3 trigger” (trade name, manufactured by Yoshino Kogyo) and a pump foam container (made by Yoshino Kogyo). Next, 10 Japanese female panelists who regularly use hair dyes regularly (about once a month) showed the sprayability and foam quality when they were used, and the consistency after application and drying. Evaluation was made according to the following criteria.

(Stickness improvement effect, sprayability, foam quality evaluation criteria)
◎: 9-10 out of 10 respondents: ○: 7-8 out of 10 respondents: Δ: 4-6 out of 10 respondents: × 0 to 3 of 10 respondents answered good

  The following “Table 2” to “Table 4” show the raw material names, product names, and raw material manufacturers of the blending components used in the above “Table 1” and blending components used in the examples described later.

  As shown in the above-mentioned "Table 1", in Examples 1-12, compared with Comparative Examples 1-4, all of non-stiffness, sprayability, and foam quality were favorable. In addition, the value of the change rate of the hair bundle cross-sectional area was small, and the spread of the hair was hardly recognized.

  Examples 2 and 5 in which the blending ratio of the cationic polymer to the amphoteric polymer (total amount of cationic polymer / amphoteric polymer) was 7 or more had a blending ratio (total amount of cationic polymer / amphoteric polymer) of 7 Compared to Example 6 below, there was no stiffness, sprayability was good, and the value of the change rate of the hair bundle cross-sectional area was also small.

Product Formulation Examples Example 13-22]
Hereinafter, specific product formulation examples of the hair cosmetic composition of the present invention will be shown.

[Example 13] Dispenser type water agent A water agent having a formulation shown in the following "Table 5" was prepared and filled into a pump dispenser container made of PET.

[Example 14] Non-aerosol pump foam A foam agent having the formulation shown in the following "Table 6" was prepared and filled in a pump foam container made of polypropylene. The pH was adjusted to 4.5 (25 ° C.).

[Example 15] Trigger type hair treatment A hair treatment having the formulation shown in the following "Table 7" was prepared and filled in a trigger type container made of PET. The pH was adjusted to 4.3 (25 ° C.).

[Example 16] Gel A gel having the formulation shown in Table 8 below was prepared and filled in a PET pump type container. The pH was adjusted to 4.4 (25 ° C.), and the viscosity was adjusted to 1.5 to 3 Pa · s.

[Example 17] Pump dispenser hair mist A hair mist having the formulation shown in Table 9 below was prepared and filled in a polyethylene pump dispenser container. The pH was adjusted to 5.0 (25 ° C.).

[Example 18] Aerosol foam An aerosol foam having the formulation shown in Table 10 below was produced. The container used was a pressure can made of aluminum.

Example 19 Hair Wax Hair waxes having the formulation shown in the following “Table 11” were prepared and filled in polypropylene jar type containers into which an antistatic agent and an ultraviolet absorber were kneaded.

[Example 20] Gel A gel having the formulation shown in Table 12 below was prepared and filled in a polypropylene tube container.

[ Reference Example 1 ] Shampoo A shampoo having the formulation shown in Table 13 below was prepared and filled into a polypropylene pump container into which an antistatic agent and an ultraviolet absorber were kneaded.

[ Reference Example 2 ] Rinse A rinse having the formulation shown in the following "Table 14" was prepared and filled in a polypropylene pump container into which an antistatic agent and an ultraviolet absorber were kneaded.

[Example 21 ] Hair cream (A) The oil phase part and (B) the water phase part were dissolved at 70 ° C. in the formulation shown in the following “Table 15”, and the above (B) The oil phase portion was added to uniformly emulsify, and further, (C) the fragrance composition D was added while cooling, and the mixture was filled in an aluminum laminate tube.

[Example 22 ] Aerosol foam An aerosol foam having the formulation shown in the following "Table 16" was prepared and filled in a pressure-resistant container made of PET.

  Note that the fragrance compositions A, B, C, D, and E used in the above examples are the fragrance compositions A to E described in Tables 5 to 19 of JP-A-2003-95895. In addition, also when mix | blending a fragrance | flavor with hair cosmetics other than the said formulation example, the fragrance | flavor and the fragrance | flavor composition described in Unexamined-Japanese-Patent No. 2003-95895 can be used.

  Moreover, when mix | blending a fragrance | flavor and a fragrance | flavor composition with the hair cosmetics of this invention, the compounding quantity of a fragrance | flavor and a fragrance | flavor composition is 0.00001-50% with respect to the hair cosmetics whole quantity of this invention. It is preferable, and 0.0001 to 30% is more preferable.

For Examples 13 to 22 and Reference Examples 1 and 2 , as in Examples 1 to 12, the change rate of the hair bundle cross-sectional area (humidity resistance) after 1 hour, 95% RH, non-stiffness, and foam quality were evaluated. As a result, both were good.

  As described above, the hair cosmetic composition of the present invention imparts cohesiveness to hair that is easily damaged and spread due to coloring, etc., and maintains sufficient cohesiveness even under high humidity. A good feeling without stickiness can be given. Moreover, the foamability and sprayability when taken out by a trigger spray container or a pump foam container are also good. Therefore, the hair cosmetic composition of the present invention is suitable for use in a spray type or foam hair cosmetic composition that does not use a propellant.

Claims (6)

As an active ingredient, the hair cosmetic to the amino-modified silicone and cationic starches and the Blend ratio has free within the (amino-modified silicone / cationized starch) 0.05 to 20, attached to the hair without rinsing after application to hair A fee,
The amino-modified silicone has the following chemical formula (3):

An aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer represented by:
The following chemical formula (4):

A hair cosmetic, characterized in that it is at least one selected from the group consisting of an aminoethylaminopropylsiloxane / dimethylsiloxane copolymer represented by the formula: The blending amount of the cationized starch is 0.001 to 30% by mass with respect to the total amount of the hair cosmetic, and the blending amount of the amino-modified silicone is 0.001 to 30% by mass with respect to the total amount of the hair cosmetic. The hair cosmetic composition according to claim 1. The cationized starch has the following chemical formula (1):

[In the chemical formula (1), X and Y are the molecular weight of the whole compound having the repeating unit represented by the chemical formula (1) is 5 to 5 million, the viscosity is 50 to 1000 mPa · s (using Brookfield viscometer, measurement temperature the hair cosmetic composition according to claim 1 or 2 which is a compound having a repeating unit represented by an integer] which is selected to be in the range of 20 ° C.). The hair cosmetic composition according to any one of claims 1 to 3, which is a hair cosmetic composition that is applied in the form of a spray or foam to be attached to the hair without being washed away.   The hair cosmetic composition according to any one of claims 1 to 4, which is a hair cosmetic composition that imparts moisture resistance to hair by being sprayed or foamed and applied to hair without being washed away.   For the moisture resistance, human hair bundles are damaged by bleaching, hair cosmetic is applied to the damaged hair bundles and air-dried, the initial cross-sectional value of the hair bundle is obtained, and the air-dried hair bundle is 30 ° C., 95 It is hung in a constant temperature bath of% RH (relative humidity), the hair bundle cross-sectional area after 1 hour is obtained, and the obtained hair bundle cross-sectional area is a value indicated by the rate of change from the initial value, and the moisture resistance is 28 The hair cosmetic composition according to claim 5, wherein the hair cosmetic composition is% or less.