JP3431737B2 - High molecular weight emulsified hair treatment agent - Google Patents

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 ingredients inside the hair flow out, causing problems such as dry hair being dry and not staying together 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. Most of these proposals include adsorbing a cationic surfactant typified by a quaternary ammonium salt, a hair modifying component such as an ionic polymer and an oil component on the surface of the hair,
It is intended to protect or improve hair. However, the above proposals have not been able to obtain a sufficient conditioning effect because the amount of adsorbed hair-modifying component is insufficient, and have not been solved at all with respect to the fact that the conditioning property is significantly lowered by washing the hair.

[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 water-soluble inorganic salts or organic salts, cationic surfactants and nonionic polymers can be used in combination to achieve excellent conditioning effects on hair (flexibility, combability, etc.). ) Was added and the effect was not deteriorated by washing hair, and the present invention was completed.

That is, in the present invention, one or more selected from (A) a water-soluble inorganic salt or an organic salt is used.
001 to 5% by weight, (B) 0.01 to 10% by weight of one or more cationic surfactants, and (C)
One or more nonionic polymers are added in an amount of 0.01-
The present invention provides an emulsified hair treatment agent characterized by containing 10% by weight.

According to the present invention, an emulsifying type hair treatment agent not only imparts an excellent conditioning effect to dried hair, but the imparted conditioning effect is maintained without deterioration even by daily hair washing. Provided.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The water-soluble inorganic salt or organic salt (A) used in the present invention has a solubility of 0.
The salt is not particularly limited as long as it is 53 g / 100 g or more, and examples thereof include inorganic acids such as hydrochloric acid, nitric acid and sulfuric acid, and sodium salts, potassium salts, calcium salts and magnesium of organic acids such as citric acid, acetic acid and lactic acid. Examples thereof include salts and aluminum salts. Among these, sodium chloride, potassium chloride, magnesium chloride, sodium sulfate, magnesium sulfate, sodium citrate, sodium acetate and sodium lactate are preferable, and magnesium chloride, sodium sulfate, magnesium sulfate, sodium lactate and sodium acetate are most preferable.

These water-soluble inorganic salts or organic 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, based on the whole emulsion-type hair treatment agent. It is from 0.01 to 3% by weight. Compounding amount is 0.
If the amount is less than 001% by weight, the sorption / permeability is insufficient and the conditioning effect is not sufficiently exerted. If the amount exceeds 5% by weight, the stability is impaired, which is not preferable.

The cationic surfactant (B) used in the present invention is not particularly limited, but for example, quaternary ammonium salt, lanolin fatty acid aminopropyldimethylammonium salt, di (polyoxyethylene) alkylmethylammonium salt. Examples thereof include salts, alkyloylcoraminoformylmethylpyridinium salts and diethanol alkyl ether dimethylammonium salts, and preferably the formula 1:

[0010]

[Chemical 3]

[In the formula, one or two of R ₁ , R ₂ , R ₃ and R ₄ represents an alkyl group, an alkenyl group or a hydroxyalkyl group having 8 to 24 carbon atoms, and the remainder is 1 to 3 carbon atoms.
Represents an alkyl group or a hydroxyalkyl group or a benzyl group, and X represents a halogen atom. ] The quaternary ammonium salt represented by the following, specifically, cetyl trimethyl ammonium chloride, lauryl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride,
Behenyltrimethylammonium chloride, tallow alkyl trimethylammonium chloride, dicetyldimethylammonium chloride, dilauryldimethylammonium chloride,
Distearyl dimethyl ammonium chloride, di-hardened tallow alkyl dimethyl ammonium chloride, dibehenyl dimethyl ammonium chloride, di (capryl / caprylyl) dimethyl ammonium chloride, di (behenyl / arachidinyl) dimethyl ammonium chloride, cetyl trimethyl ammonium bromide, stearyl trimethyl bromide Ammonium, behenyltrimethylammonium bromide, isostearylethyldimethylammonium chloride, octadecyltrimethylammonium chloride, oleyldimethylbenzylammonium chloride, isododecylbenzyldihydroxyethylammonium chloride, stearyltrihydroxyethylammonium chloride, bishydroxyethyldihydroxypropylstearylammonium chloride and Hydroxycetyl dimethyl chloride Or the like can be mentioned Moniumu,
Particularly preferred are cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, chloride-hardened tallow alkyltrimethylammonium, distearyldimethylammonium chloride and di-hardened tallow alkyldimethylammonium.

These cationic surfactants can be blended alone or in combination of two or more, and the blending amount is
0.01 to 10% by weight with respect to the entire emulsion-type hair treatment agent,
It is preferably 0.1 to 5% by weight. 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 increased amount is not obtained but also the irritation to the skin becomes strong. It is not preferable.

The nonionic polymer (C) used in the present invention may be any of a natural type, a semi-synthetic type and a synthetic type, and one kind or a combination of two or more kinds thereof may be blended. Among these, examples of natural nonionic polymers include cellulose, guar gum, agar, starch, hydrolyzed starch and dextrin. Also,
As the semi-synthetic nonionic polymer, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose,
Examples thereof include hydroxypropyl cellulose, hydroxypropyl methyl cellulose, carboxymethyl dextran and carboxymethyl chitin. Furthermore, synthetic nonionic polymers include polyethyl acrylate, polyacrylic acid amide, polyethylene glycol,
Polypropylene glycol, polyoxyethylene polyoxypropylene copolymer, polyoxyethylene polyoxypropylene decyl tetradecyl ether, polyoxyethylene polyoxypropylene butyl ether, polyoxyethylene polyoxypropylene hexylene glycol ether, polyoxypropylene butyl ether, polyvinylpyrrolidone , Polyoxypropylene glycol, dimethyl polysiloxane, phenylmethyl polysiloxane, polyether modified polysiloxane, amino modified polysiloxane, polyoxyethylene monostearate and polyoxyethylene distearate.

Of these, synthetic nonionic polymers are preferable, and particularly those having an average molecular weight of 1,000 to 5 are used.
Polyethylene glycol, polypropylene glycol, polyoxyethylene polyoxypropylene copolymer, polyoxyethylene polyoxypropylene decyl tetradecyl ether, polyoxyethylene polyoxypropylene butyl ether, polyoxyethylene polyoxypropylene hexylene glycol ether of 00000 , Polyoxypropylene butyl ether, polyoxyethylene monostearate and polyoxyethylene distearate, and a polymerization degree n of 700 to 9,000.
Dimethylpolysiloxane is preferred.

The amount of the nonionic polymer used in the present invention is 0.01 to 10% by weight, preferably 0.1 to 5% by weight, based on the total weight of the emulsion type hair treatment agent. If the amount is less than 0.01% by weight, no sufficient conditioning effect is observed, while if the amount is more than 10% by weight, it is not preferable because it gives a stiff feeling after drying.

The emulsifying type hair treatment composition according to 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. The emulsified hair treatment agent of the present invention, to the extent that the effects of the present invention are 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.

[0017]

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 their conditioning properties and effects on hair washing were evaluated. Each evaluation of sustainability and emulsion stability and comprehensive evaluation based on these were performed.

[0018]

[Table 1]

Test Example (Evaluation Method) 1. Evaluation of conditionability (suppleness, combability) After treating 8 g of a hair bundle with the hair treatment agent prepared from Examples and Comparative Examples, 10 panelists (female in their 20s) had no conditioner. Compared to the treated hair bundle,
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 ability ×: 5 people or less answered that they had good conditioning characteristics

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 ability ×: 5 people or less answered that they had good conditioning characteristics

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. ○: Not separated ×: Separated

4. Comprehensive Evaluation Based on the evaluation results of the test items 1 to 3 above, each emulsified 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) Component A heated to 60 ° C. was added to Component A heated to 60 ° C. and mixed with stirring. Then, component C was added while cooling to produce a hair cream. Component Content (%) (Component A) Sodium chloride 0.5 Distearyldimethylammonium chloride 2.0 Polyoxyethylene glycol (average molecular weight 300,000) 0.5 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. Component Content (%) (Component A) Distearyldimethylammonium chloride 1.0 Stearyltrimethylammonium chloride 2.0 Methylpolysiloxane (Polymerization degree 5000) 0.5 Methylpolysiloxane (Polymerization degree 10) 2.0 Cetyl alcohol 4.0 (Component B) Aluminum Chloride 0.05 Hydroxyethyl Cellulose 0.5 Propylene Glycol 5.0 Preservative Fine Water Residual Content (Component C) Fragrance 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. Ingredient content (%) (Component A) Stearyl trimethyl ammonium chloride 3.0 Distearyl dimethyl ammonium chloride 2.0 Dimethyl polysiloxane (Polymerization degree 500) 10.0 Cetyl alcohol 9.0 (Component B) Sodium bromide 1 0.0 Polyethylene glycol (average molecular weight 300,000) 1.0 Propylene glycol 5.0 Preservative A slight amount of residual water (component C) Fragrance 0.1 Total 100.0 Emulsified hair treatment agents of Examples 7 to 9 When applied to hair, it was confirmed that the conditioning property was maintained even after washing the hair.

[0027]

EFFECTS OF THE INVENTION By using a water-soluble inorganic salt or organic salt and a nonionic polymer in combination with a cationic surfactant, not only an excellent conditioning effect is imparted to the hair but also a long-lasting effect on the hair wash is imparted. An improved emulsified hair treatment agent can be provided.

─────────────────────────────────────────────────── --- Continuation of the front page (56) References JP-A-5-926 (JP, A) JP-A-3-161422 (JP, A) JP-A-6-340523 (JP, A) JP-A-5- 262624 (JP, A) JP 7-228510 (JP, A) JP 6-192045 (JP, A) JP 7-242522 (JP, A) JP 48-52947 (JP, A) Japanese Patent Publication Sho 57-45800 (JP, B1) (58) Fields investigated (Int.Cl. ⁷ , DB name) A61K ^7/ 00-7/50

Claims (4)

(57) [Claims] 1. 0.001 to 5% by weight of (A) one or more water-soluble inorganic salts selected from the group consisting of sodium chloride, magnesium chloride, magnesium sulfate and sodium sulfate, and (B) mono. One or more alkyl trimethyl ammonium salts are added in an amount of 0.01 to 10
% By weight, and (C) average molecular weight of 1,000 to 500,
Emulsified type containing 0.01 to 10% by weight of one or more nonionic polymers selected from the group consisting of 100,000 polyethylene glycols, polypropylene glycols or their copolymers or derivatives thereof. Hair treatment agent. 2. A monoalkyltrimethylammonium salt (B) has the formula: [Wherein _one of R ₁ , R ₂ , R ₃ and R ₄ has 8 carbon atoms
~ 24 alkyl groups, the rest is methyl, and X is a halogen atom. ] The emulsion type hair treatment agent of Claim 1 shown by these. 3. (A) 0.001 to 5% by weight of one or more water-soluble inorganic salts selected from the group consisting of sodium chloride, magnesium chloride, magnesium sulfate and sodium sulfate, and (B) mono. One or more alkyl trimethyl ammonium salts are added in an amount of 0.01 to 10
% By weight, and (C) formula 2: [In the formula, R ₅ represents a methyl group or a hydroxyl group, and the degree of polymerization n
Indicates an integer of 700 to 9,000. ] One or more dimethylpolysiloxanes represented by
An emulsified hair treatment agent containing 10% by weight. 4. The monoalkyltrimethylammonium salt (B) has the formula: [Wherein _one of R ₁ , R ₂ , R ₃ and R ₄ has 8 carbon atoms
~ 24 alkyl groups, the rest is methyl, and X is a halogen atom. ] The emulsion type hair treatment agent of Claim 3 shown by these.