JPH09118608A - Solvent-containing emulsion-type hair treating agent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject agent capable of imparting the hair after dried with excellent conditioning effect through improving the sorbability and infiltrativity of the hair-modifying ingredients (in)to the hair, also capable of sustaining its conditioning effect even after shampooing. SOLUTION: This hair treating agent contains, as active ingredients, (A) 0.001-5wt.% of a water-soluble inorganic or organic salt >=0.53g/100g in solubility to water at 20 deg.C (e.g. magnesium chloride, sodium sulfate), (B) 0.01-10wt.% of a cationic surfactant, a quaternary ammonium salt of the formula (R1 -R4 are such that one of them is a 8-24C alkyl or hydroxyalkyl, the rest being a 1-3C alkyl, hydroxyalkyl or benzyl; X is a halogen), and (C) 0.01-20wt.% of an organic solvent consisting of a 3-9C monohydric alcohol and/or aromatic alcohol (e.g. benzyl alcohol). This agent can be prepared into a hair rinse, hair treatment, hair cream, etc., in the form of liquid, emulsion, cream, foam, etc., by conventional means.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an emulsified hair treatment agent, and more specifically to improved adsorption / adhesion (hereinafter referred to as “sorption”) and penetration of a hair modifying component to hair. By doing so, the present invention relates to an emulsifying type hair treatment agent which gives an excellent conditioning effect to hair and has an effect of preventing deterioration of conditioning properties due to hair washing.

[0002]

2. Description of the Related Art In recent years, the frequency of washing hair has increased with the change in lifestyle and the change in consumer consciousness regarding cleanliness. As a result, the oil that protects the surface of the hair and the moisturizing components inside the hair flow out, causing problems such as dry hair being dry and not clinging, and it takes a lot of time and effort to care for the hair daily. Not only that, it also causes split ends and broken hair, which causes aesthetic problems. On the other hand, with the diversification of hairstyles and the enhancement of fashion consciousness, various requirements such as feel, appearance, and easiness of hair styling have been increasing for dried hair. In order to solve these problems, various ideas have been made and proposed for hair rinses and hair treatments used after washing hair. Many of these proposals protect the hair by adsorbing a cationic surfactant represented by a quaternary ammonium salt, a cationic polymer, a hair modifying component such as an oil component on the surface of the hair. Or to improve. However, in the above proposal, not only the sufficient effect of conditioning cannot be obtained because the amount of the hair-modifying component adsorbed is insufficient, but also the point that the conditioning property is remarkably deteriorated by washing the hair has not been solved.

[0003]

The object of the present invention is not only to improve the sorption and penetration of the hair-modifying component onto the hair, and thus to provide the hair with excellent conditioning effects on a daily basis. Another object of the present invention is to provide a hair treatment agent in which the conditioning effect imparted by washing hair is maintained.

[0004]

Means for Solving the Problems The present inventors have solved the above-mentioned problems by enhancing the sorption property of a cationic surfactant as a hair-modifying component on the hair and making it penetrate into the hair. As a result of diligent studies, it was found that the combination of water-soluble inorganic salts, cationic surfactants, and specific organic solvents gives hair excellent conditioning effects (flexibility, combability, etc.). Moreover, they have found that the effect is not deteriorated by washing their hair, and completed the present invention.

That is, the present invention comprises (A) 0.001 to 5% by weight of one or more selected from water-soluble inorganic salts, and (B) formula 1:

[0006]

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[In the formula, _one of R ₁ , R ₂ , R ₃ and R ₄ represents an alkyl group or a hydroxyalkyl group having 8 to 24 carbon atoms, and the remainder is an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms. Group or benzyl group, and X represents a halogen atom. ] One or more quaternary ammonium salts represented by 0.01 to 10% by weight, and (C) an organic solvent composed of a monohydric alcohol having 3 to 9 carbon atoms and / or an aromatic alcohol. The present invention provides an emulsified hair treatment agent containing one or two or more kinds in an amount of 0.01 to 20% by weight.

According to the present invention, there is provided an emulsifying type hair treatment agent which not only imparts an excellent conditioning effect to dried hair, but also maintains the imparted conditioning effect without being deteriorated by daily hair washing. Provided.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The structure of the present invention will be described in more detail. The water-soluble inorganic salt (A) used in the present invention is
The solubility in water at 20 ° C. is not particularly limited as long as it is 0.53 g / 100 g or more, and for example, hydrochloric acid,
Examples thereof include sodium salts such as nitric acid and sulfuric acid, potassium salts, calcium salts, magnesium salts and aluminum salts, and magnesium chloride, sodium sulfate and magnesium sulfate are particularly preferable.

These water-soluble inorganic salts can be blended alone or in combination of two or more, and the blending amount thereof is 0.001 to 5% by weight, preferably 0.01 to 5% by weight based on the whole emulsion-type hair treatment agent. It is 1% by weight. Blended amount is 0.001% by weight
If the amount is less than the above, the conditioning effect is not sufficiently exerted due to insufficient sorption / permeability, and if it exceeds 5% by weight, the stability of the emulsion-type hair treatment agent is deteriorated, which is not preferable.

The cationic surfactant (B) used in the present invention has the formula 1:

[0012]

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[In the formula, _one of R ₁ , R ₂ , R ₃ and R ₄ represents an alkyl group or a hydroxyalkyl group having 8 to 24 carbon atoms, and the remainder is an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms. Group or benzyl group, and X represents a halogen atom. ] It is a quaternary ammonium salt represented by, for example, cetyl trimethyl ammonium chloride,
Lauryltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, beef tallow alkyltrimethylammonium chloride, cetyltrimethylammonium bromide, stearyltrimethylammonium bromide, behenyltrimethylammonium bromide, isostearylethyldimethylammonium chloride, octadecyltrimethyl chloride. Examples thereof include ammonium, oleyldimethylbenzylammonium chloride and isododecylbenzyldihydroxyethylammonium chloride, and particularly cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, chlorinated tallow alkyl trimethylammonium chloride, isostearylethyldimethylammonium chloride, stearyltriaryl chloride. Hydroxy Le ammonium, bis-hydroxyethyl dihydroxypropyl stearyl ammonium chloride and hydroxy cetyl dimethyl ammonium chloride are preferred.

These cationic surfactants can be blended alone or in combination of two or more, and the blending amount thereof is 0.01 to 10% by weight, preferably 0.1 to 5% by weight, based on the whole emulsion-type hair treatment agent. %. If the blending amount is less than 0.01% by weight, the conditioning effect is not sufficiently exerted, and if the blending amount exceeds 10% by weight, not only the conditioning improving effect corresponding to the increase in the amount cannot be obtained but also the skin irritation becomes strong. Not preferable.

The organic solvent (C) consisting of monohydric alcohol having 3 to 9 carbon atoms and / or aromatic alcohol used in the present invention includes propanol, butanol, isobutanol, pentanol, isopentanol, hexanol,
Octanol, isooctanol, nonanol, isononanol, 2-phenylethanol, cinnamic alcohol, benzyl alcohol, phenylpropanol, α-
Methylbenzyl alcohol, phenoxyethanol, isobutoxypropanol, ethylene glycol monobutyl ether and methylbenzylcarbinol are preferred, among which isobutanol, isopentanol, isohexanol, cinnamic alcohol, benzyl alcohol,
Phenyl propanol, α-methyl benzyl alcohol, isobutoxy propanol, ethylene glycol monobutyl ether and methyl benzyl carbinol are preferred.

The amount of these organic solvents blended is 0.01 to 20% by weight, preferably 0.1 to 1% by weight based on the total amount of the hair treatment composition.
0% by weight. If the blending amount is less than 0.01% by weight, a sufficient penetration promoting effect is not recognized, and if the blending amount exceeds 20% by weight, the stability over time of the emulsion type hair treatment agent is impaired, which is not preferable.

The emulsion-type hair treatment agent of the present invention can be produced by a conventional method and can be made into various forms such as liquid, emulsion, cream and foam, and can be used as usual hair rinse, hair treatment, hair cream and the like. It can be applied to the hair depending on the usage. In addition, the emulsion-type hair treatment agent of the present invention, as long as the effect of the present invention is not impaired,
Contains oils, polyhydric alcohols, colorants, surfactants other than cationic surfactants, sequestering agents, fragrances, water, preservatives, antioxidants, and conventionally known ingredients for emulsifying hair treatment agents such as ethanol. it can.

[0018]

EXAMPLES The present invention will be described in more detail with reference to Examples and Test Examples, but the present invention is not limited thereto. Further, "%" means "% by weight" unless otherwise specified. Examples 1 to 6 and Comparative Examples 1 to 7 The hair treatment agents (hair rinses) of Examples 1 to 6 and Comparative Examples 1 to 7 shown in Table 1 were prepared by a conventional method, and conditioning properties by each emulsified hair treatment agent were prepared. , Evaluation of the effect on hair wash, stability of emulsion, and comprehensive evaluation based on these evaluations.

[0019]

[Table 1]

Test Example (Evaluation Method) 1. Evaluation of Conditioning Properties (Flexibility and Combability) After treating 8 g of hair bundles with each hair treatment agent prepared from Examples and Comparative Examples, a professional panelist (female in 20s) 10
Compared to the untreated hair tresses by name,
The sensory evaluation was performed in two grades of "good" or "equal or less".
The result was judged according to the following evaluation criteria. ○: 6 or more people answered that they had good conditioning properties ×: 5 or less people who answered that they had good conditioning properties

2. Evaluation of Persistence of Effect on Hair Washing The hair bundle used above was hand-washed with 15 ml of 10% sodium lauryl sulfate aqueous solution for about 1 minute, then rinsed well with running water and air-dried. After this treatment, 10 professional panelists (female in their twenties) compared the conditioning property with the untreated hair bundle, and performed sensory evaluation in two stages of “good” or “not more than equivalent”. The result was judged according to the following evaluation criteria. ○: 6 or more people answered that they had good conditioning properties ×: 5 or less people who answered that they had good conditioning properties

3. Evaluation of emulsion stability After preparing an emulsion type hair treatment agent (hair rinse), 40 ° C
After standing for 7 days, the stability was evaluated. ◯: Separation was not recognized ×: Separation was recognized

4. Comprehensive Evaluation Based on the evaluation results of the test items 1 to 3 above, each emulsion-type hair treatment agent was comprehensively evaluated according to the following criteria. Good: All evaluations are good. Poor: Other than the above. The evaluation results of the above 1 to 4 are summarized in Table 1.

Emulsion type hair treatment agent of the present invention (Examples 1 to 1)
In 6), excellent results were obtained in all evaluation items, whereas the emulsified hair treatment agent of Comparative Example had the above 3
It was found that at least one of the four evaluation items was extremely inferior, and it was found that it could only give a low overall evaluation as an emulsion type hair treatment agent.

Example 7 (Hair Cream) To component A heated to 60 ° C., component B heated to 60 ° C. was added and mixed with stirring. Then, component C was added while cooling to produce a hair cream. Component Content (%) (Component A) Sodium lactate 0.5 2-Phenylethanol 2.0 Stearyltrimethylammonium chloride 2.0 1,3-Butylene glycol 1.0 P0E (5) Cetyl ether 1.2 L- Cysteine 1.0 Water balance (Component B) Liquid paraffin 2.0 (Component C) Triethanolamine 0.1 Total 100.0

Example 8 (Hair Rinse) Component A was mixed and stirred at 80 ° C., and component B was mixed and stirred at 80 ° C., and then these components A were mixed.
The ingredient C was added to the hair rinse while mixing and stirring the ingredient B and the ingredient B. Ingredient content (%) (Component A) Benzyl alcohol 3.0 Stearyl trimethyl ammonium chloride 2.0 Cetyl alcohol 4.0 (Component B) Aluminum chloride 0.05 Propylene glycol 5.0 Preservative Micro water balance ( Ingredient C) Perfume 0.1 Total 100.0

Example 9 (Hair Treatment) Component A was mixed and stirred at 80 ° C., and Component B was mixed and stirred at 80 ° C., and then these Components A were mixed.
A component C was added while mixing and stirring the component B and the component B to prepare a hair treatment. Ingredients Content (%) (Component A) Dimethylbenzylcarbinol 10.0 Cetyltrimethylammonium chloride 4.0 Cetyl alcohol 9.0 (Component B) Sodium bromide 1.0 Propylene glycol 5.0 Preservative Slight water Residual amount (component C) Fragrance 0.1 Total 100.0 When the emulsion type hair treatment agents of Examples 7 to 9 were applied to the hair, it was recognized that the conditioning property was maintained even after washing the hair.

[0028]

EFFECTS OF THE INVENTION By using a water-soluble inorganic salt and an organic solvent in combination with a cationic surfactant, not only an excellent conditioning effect is imparted to hair, but also an emulsion having a long-lasting effect on hair washing is emulsified. A type hair treatment agent can be provided.

Claims (3)

[Claims] 1. One or more kinds selected from (A) water-soluble inorganic salts in an amount of 0.001 to 5% by weight, (B) formula 1: [In the formula, _one of R ₁ , R ₂ , R ₃ and R ₄ has 8 to 2 carbon atoms.
4 represents an alkyl group or a hydroxyalkyl group, the remainder represents an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group, or a benzyl group, and X represents a halogen atom. ] One or two or more of the quaternary ammonium salts represented by the formula (1) are selected from 0.01 to 10% by weight, and (C) an organic solvent comprising a monohydric alcohol having 3 to 9 carbon atoms and / or an aromatic alcohol. An emulsified hair treatment agent containing 0.01 to 20% by weight of one kind or two or more kinds. 2. The organic solvent (C) is propanol, butanol, isobutanol, pentanol, isopentinol, hexanol, octanol, isooctanol, nonanol, isononanol, 2-phenylethanol, cinnamic alcohol, benzyl alcohol, phenyl. The emulsion type hair treatment agent according to claim 1, which is selected from propanol, α-methylbenzyl alcohol, phenoxyethanol, isobutoxypropanol, ethylene glycol monobutyl ether and methylbenzylcarbinol. 3. The emulsion-type hair treatment agent according to claim 1, wherein the water-soluble inorganic salt (A) is selected from magnesium chloride, sodium sulfate and magnesium sulfate.