JPH0655656B2 - Hair cosmetics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a novel hair cosmetic composition, and more specifically, it contains a branched alkyl quaternary ammonium salt and has a low oily feel, smoothness, flexibility and electrostatic charge. Hair rinse, hair conditioner, hair treatment, which has excellent stability and stability.
The present invention relates to hair cosmetics such as hair cream, styling lotion, styling mousse, conditioning mousse, and hair spray.

[Conventional technology]

Conventionally, hair cosmetics such as hair rinses containing a di-linear long-chain alkyl quaternary ammonium salt such as distearyldimethylammonium chloride having two long-chain alkyl groups in a straight-chain form as a main active ingredient have been used. There is.

Of these, hair rinses are soft, smooth, and
The purpose is to impart antistatic properties,
A sufficient effect in flexibility and smoothness cannot be obtained only with the di-linear long-chain alkyl quaternary ammonium salt.
Therefore, in order to improve these drawbacks, it has been common to blend fats and oils such as higher alcohols, glycerides, and liquid paraffin.

In addition, hair cream mainly composed of oils or resins,
Also in styling agents and the like, mono- or di-linear long-chain alkyl quaternary ammonium salts have been used for the purpose of imparting flexibility, smoothness, antistatic properties and the like.

By the way, since the di-linear long-chain alkyl quaternary ammonium salt does not have the ability to stably emulsify and disperse a sufficient amount of oils and fats to exert its effect, it is stable in emulsion systems such as cream rinses. In order to obtain an emulsified or dispersed system, it has been attempted to blend a highly linear mono-linear long-chain alkyl quaternary ammonium salt or a nonionic surfactant. However, since these highly hydrophilic compounds significantly reduce the rinsing effect, there is a drawback that the original rinsing effect of the quaternary ammonium salt and the fats and oils cannot be sufficiently exhibited.

Further, in hair cosmetics containing oil or resin as a main component, conventional mono- or di-linear long-chain alkyl quaternary ammonium salts do not exhibit sufficient effects such as flexibility, smoothness and antistatic property. There was a problem.

Under such circumstances, as a result of intensive studies by the present inventors, as a result of substituting a part or all of a conventional linear long-chain alkyl quaternary ammonium salt with a specific branched quaternary ammonium salt, It has been found that an excellent hair cosmetic that overcomes the drawbacks can be obtained. However, the emulsion hair cosmetics containing an oil containing a branched quaternary ammonium salt as an emulsifier has a problem that it tends to separate when stored for a long period of time.

[Means for solving problems]

In order to solve these problems, the inventors of the present invention have conducted further studies, and as a result, a hair cosmetic containing a specific branched quaternary ammonium salt, an oil and a specific nonionic cellulose ether has a softness to the hair. The present invention has been completed based on the finding that they are excellent in the effect of imparting smoothness and antistatic property and have good stability over time.

That is, the present invention provides one or more of the following components (A), (B) and (C) (A) 0.01 to 20 wt% of branched quaternary ammonium salt of the following (i) or (ii). (i) [In the formula, R is An alkyl group selected from a branched alkyl group represented by and (b) a linear alkyl group represented by CH ₃ CH _{2 n} (wherein R ₃ is a methyl or ethyl group, m and n are the total of alkyl groups). Number of carbon atoms of 8 to 16), branching rate of group R
(a) / (a) + (b) is 10 to 100 wt%,
R ₁ and R ₂ represent a group selected from a benzyl group and an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group,
X ⁻ is a halogen ion or an organic anion] (ii) [In the formula, R ₄ and R ₅ are alkyl groups having 2 to 16 carbon atoms, and R ₆ is a group. Or an alkyl group having 1 to 3 carbon atoms, R ₁ , R ₂ , X
^- the first non-ionic cellulose ether derivative represented by the formula has the same meaning as in (I)] (B) 0.1-30% of fat or oil (C) 0.05-5% of the general formula (III) Seeds or mixtures of two or more [Wherein R ₇ , R ₈ and R ₉ are each a hydrogen atom or a group CH ₂ CH ₂ O
_m′H (where m ′ is a number from 1 to 5), a group selected from the group consisting of —CH ₃ and —C ₃ H ₆ OH, and n ′
Represents a number of 50 to 5000].

Of the component (A) of the present invention, the branched quaternary ammonium salt (i) is usually synthesized from an oxyalcohol having 8 to 16 carbon atoms as a raw material. Examples thereof include a dialkyldimethylammonium salt having an alkyl group, a dialkylmethylhydroxyethylammonium salt, and a dialkylmethylbenzylammonium salt. Examples of the counter ion of these ammonium salts include salt industry, halogen ions such as iodine and bromine, and organic anions such as metsulfate, ethosulfate, methophosphate, etophosphate and the like.

In formula (I), the alkyl group R has a total carbon number of 8 to 16 And (b) a group selected from CH ₃ CH _{2 n} , and R ₃ is a methyl or ethyl group. R branching rate (a) / (a) + (b)
Is calculated from the branching ratio of the raw oxo alcohol,
Generally 10 to 100 wt%, more preferably 10 to 50 wt%
%. The total carbon number of the alkyl group R is 8 to 16
However, it is preferable to have a certain distribution,
Particularly, those having the following distributions are preferable.

C ₈ - _11: 5wt% or less _{C 12: 10-35wt% C 13:} 15-40wt% C 14: 20-45wt% C 15: 5-30wt% C 16: Particularly preferred embodiments below 5 wt% the carbon atoms 8 Branching rate of 10-5 at -16
It is a dialkyldimethylammonium chloride represented by the formula (I) having 0% by weight of an alkyl group R. When this compound is used as a hair rinse agent, it has good smoothness (sliding) especially when the hair is wet.

The branched quaternary ammonium salt of (ii) in the component (A) of the present invention is represented by the formula (II) and usually has 8 carbon atoms.
~ 36 Guerbet alcohols Is a raw material to be synthesized. Preferable examples of the branched quaternary ammonium salt include monoalkyl type quaternary salts such as alkyl trimethyl ammonium salt having an alkyl group derived from Guerbet alcohol, alkyl dimethyl hydroxyethyl ammonium salt, and alkyl dimethyl benzyl ammonium salt; dialkyl. Examples thereof include dimethylammonium salt, dialkylmethylhydroxyethylammonium salt and dialkylmethylbenzylammonium salt. Examples of the counter ion of these ammonium salts include halogen ions such as chlorine, iodine and bromine, and organic anions such as metsulfate, ethosulfate, methuosphate and etophosphate. Examples of the alkyl group derived from Guerbet alcohol include 2-hexyldecyl, 2-octyldodecyl, 2-decyltetradecyl, and 2-dodecylhexadecyl. As a particularly preferred specific example of the branched quaternary ammonium salt (II), 2-decyltetradecyltrimethylammonium chloride, 2-dodecylhexadecyltrimethylammonium chloride, di-2-hexyldecyldimethylammonium chloride,
Di-2-octyldodecyl ammonium chloride etc. can be mentioned. When these compounds are used as a hair rinse agent, they have good smoothness (slip), especially when the hair is dry.

These quaternary ammonium salts represented by the formula (I) or (II) can be used alone or as a mixture,
The total content is 0.01 to 20 wt% in the hair cosmetic composition.
It is preferably 0.05 to 5 wt%.

Further, in the cosmetics of the present invention, quaternary ammonium salts other than the above, such as cetyltrimethylammonium chloride and stearyltrimethylammonium chloride, can be used supplementarily.

Further, as the oils and fats of the component (B), those generally used can be used, and examples thereof include liquid paraffin, glycerides, higher alcohols, lanolin derivatives, esters, and higher fatty acids. Among these oils and fats, for hair rinse or hair conditioner,
A monoglyceride derived from a saturated or unsaturated linear or branched fatty acid having 12 to 24 carbon atoms and a higher alcohol having a linear or branched alkyl group or alkenyl group having 12 to 26 carbon atoms are particularly preferable. Specific preferred examples thereof include oleic acid monoglyceride, palmitic acid monoglyceride, stearic acid monoglyceride, behenic acid monoglyceride, fatty acid monoglyceride such as isostearic acid monoglyceride, and cetyl alcohol, stearyl alcohol, araquine alcohol, behenyl alcohol, caranavir alcohol, ceryl alcohol. And higher alcohols.

This component (B) is incorporated in the hair cosmetic composition of the present invention in an amount of 0.1 to 30 wt%, preferably 0.3 to 10 wt%.

Preferred specific examples of the nonionic cellulose ether derivative represented by the general formula (III) which is the component (C) of the present invention include hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose,
Examples include methyl cellulose and the like.

Among the above cellulose derivatives, hydroxyethyl cellulose is commercially available under the trade names of Cellosize (UCC) and Natrosol (Hercules), and for the purpose of the present invention, ethylene oxide per glucose residue is used. The addition amount is preferably 1.0 to 4.0, particularly preferably 1.8 to 3.0.

Also, as the methyl cellulose, Climinal MC (Henkel) is used, and as the hydroxypropyl cellulose,
Krucsel (Hercules), and hydroxypropylmethyl cellulose such as Metroose (Shin-Etsu Chemical Co., Ltd.) and Climinal MHPC (Henkel) are commercially available.

The methoxy group of these methylcellulose has the above formula (III)
In -OR ₇ , -OR ₈ and -OR ₉ , it is preferably present in an amount of 10 to 40 wt%, particularly 20 to 30 wt%. Similarly, in the case of hydroxypropyl cellulose, it is preferable that the hydroxypropoxy group is present in an amount of 1 to 20 wt%, particularly 5 to 15 wt%. The component (C) is defined by the above formula (III), and its molecular terminals are OH, OR ₇ , OR ₈ , OR ₉ , H, R ₇ ,
Either R ₈ or R ₉ .

The component (C) of the present invention is blended in an amount of 0.05 to 5 wt%, preferably 0.1 to 2 wt% as a mixture of one or more nonionic cellulose ether derivatives represented by the formula (III).

The hair cosmetic composition of the present invention can be produced according to a conventional method, for example, by dissolving the component (C) in warm water, adding the component (A) and the component (B), and cooling with stirring. At this time, a solvent such as alcohol, propylene glycol or glycerin can be used. In this case, if necessary, an organic acid such as citric acid or lactic acid; an inorganic acid such as phosphoric acid or hydrochloric acid; or, so that the pH of the 5% aqueous solution becomes 3 to 8 which is the same as that of a normal hair rinse agent. It is preferable to adjust with an inorganic alkali such as caustic soda; an organic alkali such as triethanolamine.

The hair cosmetic composition of the present invention further contains an anti-dandruff agent, if necessary.
It is also possible to appropriately add medicinal agents such as vitamins, preservatives such as parabens, coloring agents such as dyes and pigments, conditioning agents such as cationic polymers, pearling agents such as glycol esters, and various mixed flavors. it can.

The ranges of particularly preferable compositions including the optional components of the hair cosmetic composition of the present invention are as shown in the following table.

For aerosols such as mousses and hair sprays, in addition to the above composition (stock solution), propellants such as fluorocarbon, liquefied petroleum gas, and dimethyl ether should have an internal pressure of 2.0 to 6.0 kg / cm ² G, that is, 1 to 1 of the total composition. It was used so as to be 20% by weight.

[Effect and action]

The hair cosmetic composition according to the present invention has little oily feeling, is excellent in smoothness, flexibility and antistatic effect, hardly changes in viscosity of the system, and has very good stability.

〔Example〕

Next, the present invention will be described with reference to examples, but the present invention is not limited to these examples. The test method used in this example is as follows.

(1) Change in viscosity with time After mixing, the viscosity of the sample after 24 hours and the viscosity at 25 ° C after storing at 40 ° C for 3 months at 25 ° C was measured with a BM type viscometer (manufactured by Tokyo Keiki), and based on the following judgment evaluated.

○ = less than 10% difference in viscosity between initial viscosity (24 hours after compounding) and storage (40 ° C, 3 months) × = initial viscosity (24 hours after compounding) and storage (40 ° C, 3 months) (2) Appearance The sample after 24 hours of compounding was placed in a 100 ml transparent glass container and the appearance was observed with the naked eye.

The evaluation was based on the following criteria.

◯: The whole is uniform and no abnormality such as separation or aggregation is observed.

X: It is non-uniform and separation, aggregation, etc. are recognized.

(3) Sensory evaluation 20 g of hair (15 cm in length) of a Japanese woman who has never been subjected to cosmetic treatment such as cold perm or bleach has been bundled, and 2 g of hair rinse agent is evenly applied to this hair bundle,
Then, after rinsing with running water for 30 seconds, towel drying was performed. A sensory evaluation of the softness and oiliness of this wet hair bundle was made, and when it was particularly excellent, it was shown as ⊚, when it was good, it was shown as ◯, when it was equivalent, it was shown as Δ, and when it was inferior, it was shown as x.

Example 1 The compositions shown in Tables 1 and 2 were prepared and their appearance and rinse performance were examined.

Method for producing composition: Hydroxyethyl cellulose (4) is dissolved in water (5) heated to 70 ° C. and heated to the same temperature to dissolve components (1) and (3), or components (2) and ( After 3) was added and stirred to emulsify, the mixture was cooled to room temperature with stirring to obtain a hair rinse composition.

Results: As shown in Tables 1 and 2.

Example 2 The composition shown in Table 3 was prepared by a conventional method, and its appearance and rinse performance were examined. The results are shown in Table 3.

Example 3 A hair rinse composition having the following composition was prepared, and the rinse performance was evaluated by the paired comparison method using 19 female panelists. The comparison standard was set to +2 when it was very good and +1 when it was good. The results are shown in Table 4. * 1 is the same as in Table 1.

Invention product 10: Dialkyldimethylammonium chloride (* 1) 2.0 (%) Cetyl alcohol 3.0 Propylene glycol 5.0 Hydroxyethyl cellulose 0.4 (1% aqueous solution viscosity 1000cp) Water 89.2 Fragrance 0.4 The heat-dissolved mixture is added, and the mixture is stirred to emulsify, then cooled to 45 ° C. with stirring, and added with cooling to room temperature with stirring to obtain a hair rinse composition.

Comparative product 4: Dicetyldimethylammonium chloride 2.0 (%) Cetyl alcohol 3.0 Propylene glycol 5.0 Hydroxyethyl cellulose 0.4 (1% aqueous solution viscosity 8000cp) Water 89.2 Fragrance 0.4 After heating to 70 ° C and dissolving, add to the same temperature. The heat-dissolved mixture is added, and the mixture is stirred to emulsify, then cooled to 45 ° C. with stirring, and is further cooled to room temperature with stirring to obtain a hair rinse composition.

Example 4 To a mixture of ,,, shown in Table 5 heated to 70 ° C., was added a mixture of heated to the same temperature and dissolved to stir to emulsify, then cooled to 45 ° C. with stirring,
Was added and the mixture was further cooled to room temperature with stirring to obtain a hair rinse composition.

Each of the obtained hair rinse composition showed good rinsing performance and good stability. * 1 is the same as in Table 1.

Example 5 A hair rinse composition was prepared in the same manner as in Example 2 and its performance was evaluated.

Example 6 (Production method) (6), (7), (8), and (10) are uniformly dispersed in (12) and heated. With further stirring, heated (1), (2), (3), (4),
After adding (5) and (9) uniform solution and cooling, (11) was added to obtain a hair treatment composition giving a good feeling.

Example 7 (Production method) (9) was dissolved in heated (11) and heated (1), (2), (3),
After adding (4), (5), (6), (7) and (8) homogeneous solution and cooling, (10) was blended to obtain a hair cream composition giving a good feel to the hair. .

Example 8 (Production method) Add (9) and (10) to (13) and heat. With further stirring,
After adding (1), (2), (3), (4), (5), (6) and (7) homogeneous solution which has been heated and cooling, (8) and (11) are blended. This was packed in an aerosol can and filled with a propellant (12) to obtain a mousse composition giving a good feel.

Example 9 Component (C) or a comparative product was dissolved in water heated to 70 ° C., and then a mixed solution of components (A) and (B) heated to the same temperature was added and cooled to room temperature with stirring. ,evaluated. The results are shown in Table 7.

Claims (2)

[Claims] 1. The following two components (A) and (B) (A) 0.01 to 20 wt% of one or more branched quaternary ammonium salts of the following (i) or (ii) (i). [Where R is An alkyl group selected from a branched alkyl group represented by and (b) a linear alkyl group represented by CH ₃ CH _{2 n} (wherein R ₃ is a methyl or ethyl group, m and n are the total of alkyl groups). Number of carbon atoms of 8 to 16), branching rate of group R
(a) / (a) + (b) is 10 to 100 wt%,
R ₁ and R ₂ represent a group selected from a benzyl group and an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group,
X ⁻ is a halogen ion or an organic anion] (ii) [In the formula, R ₄ and R ₅ are alkyl groups having 2 to 16 carbon atoms, and R ₆ is a group. Or an alkyl group having 1 to 3 carbon atoms, R ₁ , R ₂ , X
^- the one nonionic cellulose ether derivatives of the formula have the same meaning as in (I)] (B) 0.1-30% of fat (C) 0.05-5% of the general formula (III) Or a mixture of two or more [Wherein R ₇ , R ₈ and R ₉ are each a hydrogen atom or a group CH ₂ CH ₂ O
_m′H (where m ′ is a number from 1 to 5), a group selected from the group consisting of —CH ₃ and —C ₃ H ₆ OH, and n ′
Represents a number of 50 to 5000]. 2. The hair cosmetic composition according to claim 1, wherein the oil or fat is a higher alcohol or a fatty acid monoglyceride having a linear or branched alkyl or alkenyl group having 12 to 26 carbon atoms.