JP2576198B2 - Hair cosmetics - Google Patents

Description

The present invention relates to an effect of protecting or preventing damage to hair,
The present invention relates to a hair cosmetic excellent in the effect of finishing hair with a moist feeling and a silky feeling.

2. Description of the Related Art Conventionally, hair cosmetics include alkyltrimethylammonium chloride and dialkyldimethylammonium as active ingredients for imparting flexibility and lubricity to hair and preventing electrification of hair. A quaternary ammonium salt such as chloride is used, and oils and fats typified by higher alcohols are generally blended to supplement the performance of the quaternary ammonium salt.

However, the above-mentioned hair cosmetics have a problem that the effect of the quaternary ammonium salt as an active ingredient is not sufficiently exerted on hair.

Furthermore, in recent years, the use of perms, hair coloring, hair dyes, hair dryers, etc. has increased due to the rise in fashionable consciousness, and in addition to the usual physical damage caused by brushing during hair care, damage to the hair due to chemicals used for perming and hair coloring,
There is a constant danger that the hair will be damaged due to heat damage caused by the dryer and the like.

Therefore, various high molecular compounds such as cellulose-based, keratin-based, and vinyl-based polymers are blended with hair cosmetics as a hair protecting agent, and animal and vegetable oils and hydrocarbon oils are used to improve moist feeling. Incorporating water-retaining ingredients such as oils such as ester oils and protein derivatives, etc. has been practiced, but it is hard to say that the effect is satisfactory in any case and protects hair satisfactorily from the above-mentioned damage. It was difficult to moisturize and dry hair.

Therefore, development of a hair cosmetic which has an excellent protective effect on the hair surface and a high effect of imparting a moist feeling to the hair is desired.

Recently, the taste of the hair finish tends to be light,
There is a strong demand for a moist and smooth touch. However, the moist feeling and the dry feeling of the hair are contradictory.For example, if a hydrophobic oil such as silicone is added to hair cosmetics, the hair can be finished to some extent smooth, but the moist feeling disappears, and Addition of a water retention component such as a derivative can give a moist feeling, but does not give a smooth feeling. In particular, in the case of damaged hair, it is difficult to achieve a smooth finish even when using hair cosmetics to which silicone or the like has been added.
Moreover, hair cosmetics that can be finished smoothly are desired.

Furthermore, hair suffers from various damages as described above in a dry state after shampooing. However, in the process of drying from a wet state after shampooing, the hair is poorly brushed and more susceptible to physical damage than when dry. . However, little technology has been developed to protect hair from physical damage during the drying process,
For this reason, there has been a strong demand for a hair cosmetic which can provide wet hair with excellent brushability and hand combability and prevent physical damage to the hair during the drying process.

The present invention has been made in view of the above circumstances, and is a hair cosmetic which has an excellent protective effect on the surface of the hair and has a high effect of imparting a moist feeling to hair, and which can simultaneously impart a moist feeling and a smooth feeling to damaged hair. An object of the present invention is to provide a cosmetic and a hair cosmetic which can impart excellent brushability and hand combability to hair in a drying process after washing the hair to prevent damage to the hair.

Means and Action for Solving the Problems The present inventors have conducted intensive studies to achieve the above object, and as a result, from a surfactant having a quaternary ammonium as a cation part and a polymerizable anion as a counter ion. By blending a 1,2-alkanediol derivative together with a high molecular vesicle obtained by polymerizing a small vesicle, a hair cosmetic having an excellent protective effect on the hair surface and a high effect of imparting a moist feeling to the hair can be obtained. What is obtained, in addition, by using the polymer vesicle and the hydrophobic silicone in combination, it is possible to obtain a hair cosmetic capable of moistening damaged hair and giving it a smooth finish. , The following general formula (1) (Wherein R ₁ is a substituent selected from an alkyl group having 3 to 22 carbon atoms, a hydroxyalkyl group, an alkenyl group and a glyceryl group, and an alkylphenyl group and a dialkylphenyl group having an alkyl group having 4 to 12 carbon atoms; R ₂ is a hydrogen atom or a methyl group, Y is a hydrogen atom, an alkali metal atom, an alkyl-substituted ammonium group or a hydroxyalkyl-substituted ammonium group, and Z is Or Y. N is an integer of 0 to 100. ) By using together with the phosphoric acid ester represented by the formula (1), it is possible to obtain a hair cosmetic having an excellent effect of brushing and hand combing the hair in the drying process after washing the hair and having a high effect of preventing damage to the hair. Was found.

That is, the present inventors have found that the effects of the conventional hair cosmetics are insufficient because the active ingredients have poor adsorptivity to hair. Since it acts like a coagulant or thickener, this hair cosmetic cannot be supplied as a fine particle dispersion,
For this reason, it cannot be uniformly adsorbed on the surface of the hair, and the adsorption residual rate after the rinsing operation is low, and the effects of the quaternary ammonium salt and silicone compounded in the hair cosmetic are sufficiently applied to the hair. The reason why these components are not exhibited is that these components have low adsorptivity to hair. On the other hand, the above-mentioned fine polymer vesicles having a uniform bilayer membrane-polymer complex structure are excellent in hair. In addition to exhibiting an excellent protective effect on the hair surface by adsorbing to the hair, when used in combination with a 1,2-alkanediol derivative, a hydrophobic silicone or a phosphoric ester of the formula (1), the adsorption of these active ingredients to the hair is improved. The polymer vesicles have characteristics that can sufficiently exhibit these effects by improving the properties. Therefore, the use of the polymer vesicle in combination with a 1,2-alkanediol derivative, a hydrophobic silicone or a phosphate ester of the formula (1) Accordingly, by finding that it is possible to effect each such active ingredients to obtain a hair cosmetic composition which can be exhibited satisfactorily, in which the present invention has been accomplished.

 Hereinafter, the present invention will be described in more detail.

The first essential component of the hair cosmetic of the present invention is a polymer vesicle obtained by polymerizing a vesicle comprising a surfactant having a quaternary ammonium as a cation and a polymerizable anion as a counter ion.

Here, as the polymer vesicle, the following general formula (2) (Where R ₃ is a linear or branched alkyl group, alkylaryl group, alkenyl group or hydroxyalkyl group having 8 to 32 carbon atoms, R ₄ is an alkyl group having 2 to 3 carbon atoms, and R ₅ is An alkyl group having 1 to 4 carbon atoms or-(OR ₄ ) _m
H group, m represents an integer of 0 to 5. Furthermore, the counterion A ^-
Represents an organic acid-based anion having a polymerizable group. ) Wherein the cation part is a long-chain two-chain quaternary ammonium and the counterion part is a polymerizable anion. Those obtained by polymerizing cell bodies can be suitably used.

In this case, the substituent R ₃ in the formula (2) is, for example, octyl group, nonyl group, decyl group, dodecyl group, tetradecyl group, hexadecyl group, octadecyl group, hexacosyl group, triaconityl group, undecyl group, tridecyl group,
A linoleyl group, a linolenyl group, a 2-hexyldecanoyl group, etc., R ₄ is an ethyl group, a propyl group, etc., and R ₅ is a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, etc.
Specific examples of the cation part of the formula (2) include distearyl dimethyl ammonium, dihexadecyl dimethyl ammonium, didodecyl dimethyl ammonium,
Dieicosyl diethyl ammonium, dihexacosyl dimethyl ammonium, dinonacosyl dimethyl ammonium and the like are exemplified.

Further, the counter ion portion A ⁻ in the formula (2) is preferably an organic acid-based anion having polymerizability. For example, acrylic acid, methacrylic acid, fumaric acid, itaconic acid, crotonic acid as a carboxylic acid-based anion Acid, maleic acid and the like; and sulfuric acid-based anions include vinylsulfonic acid, styrenesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid and the like. Of these, carboxylic acid-based acrylic acid and methacrylic acid are preferred. Acid or the like, more preferably methacrylic acid is used.

In the synthesis of the quaternary ammonium salt type surfactant monomer having the ability to form polymer vesicles of the formula (2), the halogen ion of the quaternary ammonium halide salt is subjected to ion exchange using an ion exchange resin. Method of exchanging for an organic acid-based anion having a polymerizable group (J. Am. Chem. Soc., 106, 2
446-2447 (1984), J. Am. Chem. Soc., 108, 2321-2327 (198
6)) can be used. Further, a method of removing an alkali metal halide from an alkali metal salt of an organic acid and a quaternary ammonium halide by a desalting method may be used.

The polymer vesicle of the present invention can be obtained by preparing a vesicle dispersion of the quaternary ammonium salt-type surfactant and then polymerizing the dispersion according to a conventional method. In addition,
The preparation of the vesicle dispersion liquid is preferably performed by sonication, and the temperature during sonication is preferably 50 ° C. or more, and the concentration of the surfactant is preferably 0.1 to 5% by weight.

Further, in the present invention, the blending amount of the polymer vesicle is:
Although not particularly limited, when a 1,2-alkanediol derivative is used as the second essential component, 0.02-
10% (wt%, the same applies hereinafter), particularly 0.05 to 5%, when using a hydrophobic silicone, 0.1 to 5%, especially 0.1 to 3% of the total cosmetic, when using a phosphoric ester of the formula (1) Is preferably 0.1 to 10%, especially 0.1 to 5% of the total cosmetic. If the amount of the polymer vesicles is less than the above value, the effect of the present invention may not be sufficiently exerted. If the amount exceeds the above value, the hair may become sticky and may have a heavy finish.

The hair cosmetic composition of the present invention comprises, as a second essential component, 1,2
-Containing an alkanediol derivative, a hydrophobic silicone or a phosphoric ester of the above formula (1).

Here, the 1,2-alkanediol derivative is represented by the following general formula (3) (Wherein X is a carbonyloxy group bonded to a group R ₆ through a free bond of an oxygen atom or a carbon atom of a carbonyloxy group) R ₆ is a hydrogen atom or a saturated alkyl group having 1 to 21 carbon atoms, or when X is —COO—, R ₆ is a hydrocarbon residue of lanolinic acid, and any one of R ₇ and R ₈ One is a linear alkyl group having 8 to 24 carbon atoms, and the other is a hydrogen atom. A compound having two OH groups or hydrophilic groups in the molecule represented by the following formula (2) can be preferably used. Specifically, 1,2-hexadecanediol, 1,2-octadecanediol, and 1,2-eicosandiol And their derivatives.

The compound represented by the general formula (3) can be obtained by the following method.

That is, it can be obtained by reacting one or more kinds of alcohols or acids represented by the general formula R'-XH with one or more kinds of 1,2-epoxides represented by the following general formula (4). .

(In the formula, R ₉ is a linear alkyl group having 8 to 24 carbon atoms or a mixture thereof.) In this case, as the alcohol represented by the formula R′-X—H (X is an oxygen atom), for example, 2-ethyl Hexanol, octanol, decanol, hexadecanol, 2
-Octyldecanol, octyloctanol and 2-
Octyldodecanol; and acids represented by the formula R'-XH Examples thereof include 2-ethylbutyric acid, 2-ethylhexanoic acid, octanoic acid, decanoic acid, tetradecanoic acid, hexadecanoic acid, isostearic acid, eicosanoic acid, docosanoic acid, and lanolinic acid.

Examples of the epoxide represented by the formula (4) include oxides of decene, undecene, dodecene, tridecene, tetradecene, pentadecene, hexadecene, heptadecene, octadecene, nonadecene, eicosene, heneicosene, dococene, tricocene, tetracocene, pentacocene, hexacocene and the like. Can be mentioned.

Further, the reaction between the alcohol or acid represented by R'-X-H and the 1,2-epoxide of the formula (4) is carried out by R'-X
When -H is an alcohol, the reaction is preferably performed in the presence of a Lewis acid type acidic catalyst such as boron trifluoride or an alkaline catalyst such as sodium methylate.
When R'-XH is an acid, it is preferably carried out in the presence of a basic catalyst such as sodium methylate or triethylamine.

Furthermore, when R 'of the formula R'-X-H is H and X is O, a compound represented by the general formula (5) is synthesized according to the following reaction formula using peracetic acid or the like, and then the acid is synthesized. To generate a 1,2-alkanediol derivative.

In addition, reaction conditions can be adjusted suitably.

Further, the compounding amount of the 1,2-alkanediol derivative is preferably 0.05 to 10%, particularly preferably 0.05 to 5% of the whole hair cosmetic, and if it is less than 0.05%, the effect of imparting a moist feeling to the hair can be obtained. In some cases, it may not be obtained sufficiently, and if it exceeds 10%, the hair may become sticky.

Next, the hydrophobic silicone is not particularly limited, but has a solubility in water at 25 ° C. of 1% by weight or less, particularly 0.1% by weight.
Not more than 5% by weight and having a viscosity at 25 ° C of 1 to 1
000 centistokes (cs), especially those in the range of 5 to 500 centistokes can be suitably used.

In addition, among silicones, hydrophilic silicone has strong water retention, and when hydrophilic silicone is used for hair cosmetics,
Hair is heavy and sticky in wet and dry air or in humid climates, whereas hydrophobic silicone has a surface tension very close to or less than the critical surface tension of hair. When hydrophobic silicone is used in hair cosmetics, it spreads evenly on the hair surface,
Not to mention the hair is not sticky or heavy,
It is a smooth and smooth finish, so
In the present invention, a hydrophobic silicone is used.

In this case, as the hydrophobic silicone, for example, methylpolysiloxane, methylphenylpolysiloxane, fatty acid-modified polysiloxane, aliphatic alcohol-modified polysiloxane, polyoxyalkylene-modified polysiloxane and the like can be suitably used. Expressed by the formula
Is preferably used.

Methyl polysiloxane (CH ₃ ) ₃ SiO [(CH ₃ ) ₂ SiO] _n Si (CH ₃ ) ₃ n = _{3 to} 350 Viscosity: 1 to 1000 cs (25 ° C.) Methyl phenyl polysiloxane a + b + c = 1 ~ 250 Viscosity: 10 ~ 1000cs (25 ℃) Fatty acid modified polysiloxane a + b + c = 1-200, x = 0-5, R = C ₉ H ₁₅ -C ₂₁
H ₄₃ Viscosity: 10~1000cs (25 ℃) aliphatic alcohol-modified polysiloxane a + b + c = 1~200, x = 0~5, R = C 4 H 9 ~C 22
H ₄₅ viscosity: 10-100cs (25 ℃) Polyoxyalkylene-modified polysiloxane a + b + c = 1-200, x = 0-5, y = 1-50, M =
H, CH ₃ , C ₂ H ₅ , k = 1 to 4 Viscosity: 10 to 1000 cs (25 ° C.) The amount of the hydrophobic silicone is 0.1 to 5%, especially 0.1 to 3% of the total hair cosmetic. Preferably, 0.
If it is less than 1%, the effect of imparting a moist feeling and a smooth feeling to the hair may not be sufficiently exhibited, and if it exceeds 5%, the hair may be heavily finished and the object of the present invention may not be achieved.

Further, the phosphoric ester is represented by the following formula (1) (Wherein R ₁ is a substituent selected from an alkyl group having 3 to 22 carbon atoms, a hydroxyalkyl group, an alkenyl group and a glyceryl group, and an alkylphenyl group and a dialkylphenyl group having an alkyl group having 4 to 12 carbon atoms; R ₂ is a hydrogen atom or a methyl group, Y is a hydrogen atom, an alkali metal atom, an alkyl-substituted ammonium group or a hydroxyalkyl-substituted ammonium group, and Z is Or Y. N is an integer of 0 to 100. ). The phosphate ester is represented by the following formula (1 ′) In the case represented by, both R _{1 's} may be the same or different from each other.

Specific examples of the phosphate ester of the formula (1) include decyl phosphate, myristyl phosphate, cetyl phosphate, oleyl phosphate, docosyl phosphate, polyoxyethylene (3) decyl phosphate, polyoxyethylene (3) lauryl phosphate,
Polyoxyethylene (5) myristyl phosphate, polyoxyethylene (3) cetyl phosphate, polyoxyethylene (5) stearyl phosphate, polyoxyethylene (3) oleyl phosphate, polyethoxyethylene (3) eicosyl phosphate, polyoxyethylene (5) docosyl phosphate, polyoxyethylene (3) docosenyl phosphate, polyoxyethylene (5) 1,2-hydroxysialyl phosphate, polyoxypropylene (5) cetyl phosphate, polyoxyethylene (3) polyoxypropylene ( 5) Stearyl phosphate, polyoxypropylene (21) butyl phosphate, polyoxypropylene (60) glyceryl phosphate, polyoxyethylene (7) nonylphenyl phosphate, polyoxyethylene (7) dinonylphenyl phosphate, and the like. Sodium salt, potassium salt, g Limethylamine salt, triethylamine salt, monoethanolamine salt, diethanolamine salt, triethanolamine salt and the like can be mentioned.
One or two or more of these are used.

In the present invention, a partially or completely neutralized product can be used as the phosphate ester. In this case, a phosphate ester part or a completely neutralized product may be directly incorporated into the hair cosmetic component, but the phosphate ester is dissolved,
After dispersion or emulsification, a neutralizing agent may be added for partial or complete neutralization.

The amount of the phosphoric acid ester is not particularly limited, but is preferably 0.1 to 10%, particularly 0.1 to 5% of the total hair cosmetic, and if the amount is less than 0.1%, drying after washing the hair. In the process, the hair may not pass through the brush or hand comb, and if it exceeds 10%, the hair may become sticky.

In the cosmetic of the present invention, depending on the type, purpose of use, etc.,
Any other components can be blended as long as the effects of the present invention are not affected. Optional components include, for example, hydrocarbons such as liquid paraffin, vaseline, solid paraffin, squalane and olefin oligomers; esters such as isopropyl myristate, isopropyl palmitate, 2-ethylhexanoic acid triglyceride; camellia oil, olive oil, avocado oil, persic Vegetable oils such as oil; higher alcohols such as behenyl alcohol and hexyldecanol; emulsifiers such as glyceryl fatty acid ester, sorbitan fatty acid ester, polyoxyethylene fatty acid ester, polyglycerin fatty acid ester and polyoxyethylene sorbitan fatty acid ester; methyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose And cellulose derivatives such as cationized cellulose; thickeners such as natural polymers; ethylene Moisturizing agents such as recol, propylene glycol, 1,3-butylene glycol, glycerin and sorbitol; pearlescent agents such as polyethylene glycol, higher fatty acid ethanolamide, mica titanium and fish phosphorus foil; other solvents, disinfectants, chelating agents, An ultraviolet absorber, a coloring agent, a fragrance, and the like can be blended, and the blending amounts thereof can be made ordinary amounts.

The hair cosmetic composition of the present invention can be used in various applications such as a hair rinse agent, a spray-type or dispenser-type hair conditioner, a hair treatment, a hair lotion, and the like, by mixing optional components together with the above essential components.

Effects of the Invention In the present invention, a hair cosmetic having both a protective effect on the hair surface and an effect of improving the moist feeling of the hair can be obtained by blending the polymer vesicle and the 1,2-alkanediol derivative. Further, by blending the polymer vesicles and the hydrophobic silicone, it is possible to obtain a hair cosmetic that can simultaneously impart a moist feeling and a smooth feeling to damaged hair. Furthermore, in the present invention, rinsing can be performed in any state such as a uniform state, a non-uniform state, and an emulsified state by blending the polymer vesicle and the phosphate of the formula (1). In the process of drying wet hair whether it is the type that you need or the type that you do not need, a hair cosmetic that can give the hair excellent brushing and hand combing properties and prevent hair damage Obtainable.

Hereinafter, the present invention will be described specifically with reference to Examples and Comparative Examples, but the present invention is not limited to the following Examples.

 In the following examples, all percentages are by weight.

In addition, the synthesis of the polymer vesicle dispersion used in each example is as follows:
Performed as follows.

<Synthesis of polymer vesicle> As a quaternary ammonium salt as a starting material, distearyl dimethyl ammonium chloride (manufactured by LACO,
Arcard 2HT-75) was used after recrystallization from acetone. This distearyl dimethyl ammonium chloride actually contains 70% of a straight-chain alkyl group having 18 carbon atoms and 30% of a straight-chain alkyl group having 16 carbon atoms.

The column was filled with an anion exchange resin Amberlyst A-27 (manufactured by Organo), and methacrylic acid (Junsei Chemical Co., Ltd.) was used.
Was passed through to give a methacrylate type ion exchange resin. Next, by passing the methanol solution of the distearyl dimethyl ammonium chloride to exchange the counter ion, methanol as a solvent is concentrated and then recrystallized from acetone, thereby polymerizing the methacrylate having a methacrylate introduced into the counter ion portion. White crystals of quaternary ammonium surfactant 2HT methacrylate were obtained.

5 g of this 2HT methacrylate and 250 g of water are sealed in an Erlein Meyer flask and sonicated for 2 to 4 hours while heating to 70 to 80 ° C. using a hot water bath type sonicator (Model 521, manufactured by BRANSONIC). Was carried out to obtain an endoplasmic reticulum dispersion. The bilayer vesicle structure of this dispersion is
Transmission electron microscope by freeze-fracture replica method (Hitachi H-
600 type) It was confirmed by observation.

250 ml of the vesicle dispersion liquid prepared as above is placed in a reaction vessel, and a low-pressure mercury lamp (manufactured by Riko Kagaku Sangyo Co., Ltd.
Polymerization was carried out by an internal irradiation method using a 32LB type, 32W, wavelength 254nm). When the disappearance of the olefin proton peak and the methacrylate methyl proton peak was followed by using NMR, the polymerization reaction was completely completed in 6 hours. By this polymerization reaction, submicron sizer (BROO
A polymer vesicle dispersion having a particle size of 67 nm as measured by KHAVEN (model B1-90) and a degree of polymerization of 30 to 4 as a main distribution was obtained.

[Examples 1 to 4] Hair cosmetics having the compositions shown in Table 1 were prepared, and their performance was evaluated by the following methods.

 The results are shown in Table 1.

Protective Effect on Hair Surface As a substitute for the protective effect, the friction resistance of the pulley was measured.

After treating the hair with a sample (hair cosmetic), set the hair with a constant load on an aluminum pulley, measure the friction coefficient after 5 minutes at 2.5 rpm and 50 rpm, and combine the surface with an electron microscope. Observations were made. The result of surface observation is
The hair before treatment was evaluated based on the following criteria.

：: The same level as the standard.

：: Slight damage is observed.

Δ: Clearly damaged.

×: Severe damage.

Moist feeling of hair 20cm, after washing hair bundle of 10g with commercial shampoo, 1g
(Hair cosmetic) was lightly rinsed with hot water at about 40 ° C., and left overnight at 25 ° C. and 65% humidity. The moist feeling of this hair bundle was sensory evaluated by 20 panelists.

The evaluation was carried out in accordance with the following evaluation criteria on the basis of a hair bundle that had been subjected to the same treatment using a standard sample having the following composition, and the evaluation average of 20 panelists was obtained.

<Standard sample> Stearyltrimethylammonium chloride 1% Cetyl alcohol 3 Propylene glycol 10 water Residual 100.0% <Evaluation criteria> A: Good compared with standard.

 ：: Slightly better than the standard.

 Δ: Equivalent to the standard.

 X: Slightly inferior to the standard.

XX: Inferior to standard.

Table 1 shows that the polymer vesicles according to the present invention and 1,2
-Hair cosmetics blended with an alkanediol derivative,
High effects were observed in any of the friction coefficient, surface observation and moist feeling of the hair.

[Examples 5 to 8, Comparative Examples 1 to 3] Hair cosmetics having the compositions shown in Table 2 were prepared, and their performance was evaluated by the following methods.

 The results are shown in Table 2.

Moist feeling of hair, smooth feeling After treating hair with 5% ammonium thioglycolate (pH 9.6, bath ratio 30 times), 3% potassium bromate (bath ratio: 40)
) For 5 minutes, washed with water, and air-dried to obtain damaged hair.

Using the damaged hair bundle of 5 g, 20 cm as hair, this hair bundle is treated with a commercially available shampoo, and then 0.5 g of a sample is directly applied to the hair bundle and evenly stretched by hand. After being dried in an atmosphere and left overnight, sensory evaluation was conducted by 20 panelists.

The evaluation was carried out in accordance with the above-mentioned standard on the basis of the hair which had been subjected to the same treatment with the above-mentioned standard sample, and the evaluation average of panelists was used as a result.

From the results in Table 2, it was found that each of the hair cosmetics containing the polymer vesicles and the hydrophobic silicone according to the present invention was excellent in imparting a moist feeling and a smooth feeling to hair.

[Examples 9 to 13, Comparative Examples 4 to 6] Hair cosmetics having the compositions shown in Table 3 were prepared and tested for their efficacy by the following methods.

 The results are shown in Table 3.

Damaged hair surface after brushing 1 g of a sample was directly applied to a shampooed hair bundle (10 g, 20 cm), and the hair was evenly spread over the entire hair bundle by hand. Then, about
After rinsing lightly with hot water of 40 ° C., the water was wiped off with a towel so that the water content of the hair became 30%.

Using a commercially available styling brush, this bristle bundle was brushed at three locations (at 120 ° intervals) 30 times each.

After brushing, take a replica of the hair by the sump method,
The surface was observed with a phase contrast microscope.

The evaluation was performed in accordance with the above-described standard with reference to the hair which had been subjected to the same treatment with the above-mentioned standard sample.

Hair-drying during hair drying Half-Head-Comparison method, treating the entire hair of 20 panelists with a commercial shampoo, dividing it into left and right halves, 5g each of the standard sample on one side and 5g on the other side
It was applied and spread evenly throughout the hair tress. Then, after rinsing lightly with hot water of about 40 ° C, wipe off the moisture of the hair with a towel,
Dry styling was further performed using a 1KW dryer and a commercially available styling brush.

The evaluation was performed in accordance with the above-described standard with reference to the hair subjected to the same treatment using the above-mentioned standard sample.

From the results in Table 3, hair cosmetics containing the polymeric vesicles and phosphate according to the present invention (Examples 9 to 13)
It was confirmed that both the excellent condition of the hair surface after brushing and the brushability during drying of the hair were excellent.

Example 14 A hair treatment having the following composition was prepared, and its performance was evaluated. As a result, the hair treatment had an excellent hair surface protection effect and a moist feeling imparting effect.

Polymer vesicle 5% dispersion 20% cetostearyl alcohol 5.0 1,2-dodecanediol 1.0 sorbitan sesquioleate 0.5 glyceryl monostearate 0.5 propylene glycol 10.0 Perfume Appropriate amount Bactericide 〃 Purified water Remaining 100.0% [Example] 15] A hair conditioner (dispenser type) having the following composition was prepared, and its performance was evaluated. As a result, it had an excellent hair surface protection effect and a moist feeling imparting effect.

Polymer vesicle 5% dispersion 10% 1,2-dodecanediol 0.5 Propylene glycol 5.0 POE (10) stearyl ether 3.0 Ethyl alcohol 10.0 Perfume Appropriate amount Purified water Remainder 100.0% [Example 16] Hair treatment having the following composition When the composition was prepared and its performance was evaluated, it had an excellent moisturizing and smoothing effect on damaged hair.

Polymer vesicle 2% dispersion 60% hydrophobic silicone A 1.5 liquid paraffin (viscosity: 70 seconds) 15 cetanol 2.0 stearic acid 0.5 POE (15) stearic acid ester 0.8 propylene glycol 5.0 purified water balance 100.0% [Example 17 A hair lotion having the following composition was prepared and its performance was evaluated. As a result, the hair lotion had an excellent moisturizing and smoothing effect on damaged hair.

Polymer vesicle 2% dispersion 50% hydrophobic silicone B 1.0 squalane 1.0 cetanol 0.5 sorbitan monostearate 0.7 POE (8) stearyl ether 0.5 propylene glycol 5.0 purified water balance remaining 100.0% [Example 18] Hair brushing of the following composition When the agent was prepared and its performance was evaluated, it had an excellent moisturizing and smoothing effect on damaged hair.

Polymer vesicle 2% dispersion 10% Hydrophobic silicone C 0.5 Isopropyl palmitate 0.3 Dichlorodifluoromethane 35 Ethanol Residual total 100.0%

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Kazuo Mukagasa, 1-3-7, Honjo, Sumida-ku, Tokyo Inside Rion Co., Ltd. (72) Yoshisuke Suzuki 1-3-7, Honjo, Sumida-ku, Tokyo No. Lion Corporation (72) Inventor Yuichi Takada 1-3-7 Honjo, Sumida-ku, Tokyo Inside Lion Corporation

Claims (3)

(57) [Claims] 1. A polymer vesicle obtained by polymerizing a vesicle comprising a surfactant having a quaternary ammonium as a cation part and a polymerizable anion as a counter ion, and a 1,2-alkanediol derivative. Hair cosmetics containing. 2. A hair cosmetic comprising the polymer vesicle according to claim 1 and a hydrophobic silicone. 3. The polymer vesicle according to claim 1 and the following general formula (1): (Wherein R ₁ is a substituent selected from an alkyl group having 3 to 22 carbon atoms, a hydroxyalkyl group, an alkenyl group and a glyceryl group, and an alkylphenyl group and a dialkylphenyl group having an alkyl group having 4 to 12 carbon atoms; R ₂ is a hydrogen atom or a methyl group, Y is a hydrogen atom, an alkali metal atom, an alkyl-substituted ammonium group or a hydroxyalkyl-substituted ammonium group, and Z is Or Y. N is an integer of 0 to 100. A hair cosmetic comprising: a phosphate ester represented by the formula: