JPS621366B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a transparent hair rinse agent composition that imparts excellent rinsing effects such as smoothness and suppleness to the hair, and more particularly, it relates to a transparent hair rinse agent composition that provides excellent rinsing effects such as smoothness and suppleness to the hair, and more specifically, a quaternary ammonium salt, one or more specific polyoxypropylene derivatives, etc. and a highly stable transparent hair rinse composition containing a solvent as an essential component. Hair rinses containing quaternary ammonium salts such as distearyldimethylammonium chloride as active ingredients have been used to eliminate problems such as squeaks, tangles, static electricity, and difficulty in combing the hair after washing. . Hair rinses are intended to impart flexibility, smoothness, antistatic properties, etc. to hair, but quaternary ammonium salts alone do not have sufficient effects on flexibility and smoothness. . Therefore, conventional hair rinses contain higher alcohols,
It was common practice to incorporate oils and fats such as glyceride and liquid paraffin. Hair rinses containing these oils and fats are emulsions or dispersions and generally have a cloudy or pearly appearance. If it is possible to make the appearance transparent while blending such oils and fats, a hair rinse agent with characteristics and high commercial value can be obtained. In order to achieve the above purpose, various attempts have been made in the past, such as adding organic solvents such as ethyl alcohol, isopropyl alcohol, ethylene glycol, and propylene glycol to hair rinses.
A method of dissolving and making the fats and oils transparent by blending them in an extremely large amount of 60% by weight or more, such as using a highly hydrophilic nonionic surfactant made by adding 20 to 40 moles of ethylene oxide to a higher aliphatic alcohol. A method of solubilizing fats and oils using benzalkonium chloride or the following general formula without using fats and oils at all. (In the formula, R' represents an alkyl group having 16 to 18 carbon atoms.) A method for producing a hair rinse agent using only a special water-soluble cationic surfactant has been proposed. However, the method uses a large amount of organic solvent, so the cost is very high.
The disadvantage of this method is that it is difficult to keep the solubilized system stable, and the use of a large amount of nonionic surfactant reduces the rinsing effect, making it impossible to obtain the desired effect. However, even if the hair rinse agent is satisfactory in terms of rinsing effect, it is not possible to obtain a hair rinse agent that satisfies the requirements. was the current situation. Therefore, the present inventors conducted various studies in order to obtain a hair rinse agent that satisfies all of the above requirements, and found that a specific propylene oxide derivative was used as an oil and fat that imparts smoothness and flexibility to the hair. The present invention was completed based on the discovery that by using this together with a small amount of a solvent, a transparent hair rinse agent with a rinsing effect equal to or greater than that of conventional hair rinse agents could be obtained. That is, the present invention has the following three components: (A) General formula () (In the formula, R ₁ , R ₂ , R ₃ and R ₄ are either an alkyl group, a hydroxyalkyl group or a benzyl group, and one or two of them are long-chain alkyl groups with 8 to 20 carbon atoms or It is a long-chain hydroxyalkyl group, and the remainder is either an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group, or a benzyl group.X represents a halogen atom or an alkyl sulfate group having 1 to 2 carbon atoms) (B) Polyoxypropylene with a molecular weight of 200 to 2000 and a polyoxyethylene with a molecular weight of 2100 containing 5 to 40% by weight of polyoxyethylene in the molecule. 0.1 to 10% by weight of one or a mixture of two or more polyoxypropylene derivatives selected from the group consisting of ~10,000 polyoxyethylene polyoxypropylene copolymers, (C) ethyl alcohol, isopropyl alcohol, glycerin, sorbitol, The present invention provides a transparent hair rinse composition containing as an essential component 1 to 20% by weight of a solvent selected from the group consisting of ethylene glycol, propylene glycol, hexylene glycol, diethylene glycol, cellosolve, and ethyl carbitol. The quaternary ammonium salt of component (A) of the present invention is one commonly used as an active ingredient for imparting a favorable rinsing effect, such as myristyl dimethyl ammonium chloride, stearyl trimethyl ammonium methyl sulfate, cetyl triethyl Examples include ammonium bromide, stearyldimethylbenzyl ammonium chloride, and especially monolong chain alkyl quaternary
Grade ammonium salts are preferred. In addition, as the polyoxypropylene derivative of component (B) of the present invention, polyoxypropylene or propylene oxide having a molecular weight of 200 to 2000 obtained by polymerizing propylene oxide and ethylene having a weight fraction of 5 to 40% of the total Molecular weight 2100 ~ obtained by copolymerizing oxide
10,000 polyoxyethylene polyoxypropylene copolymer, etc. As the solvent for component (C), lower monohydric alcohols such as ethyl alcohol and isopropyl alcohol,
Polyhydric alcohols such as glycerin and sorbitol,
Examples include glycols such as ethylene glycol, propylene glycol, hexylene glycol, diethylene glycol, cellosolve, and ethyl carbitol. The hair rinse agent of the present invention contains 0.1 to 10% by weight (hereinafter simply expressed as %) of the quaternary ammonium salt as the component (A), preferably 0.5 to 4.0%, and 0.1% of the polyoxypropylene derivative as the component (B). ~10%, preferably
0.5 to 5.0%, 1 to 20%, preferably 5 to 10% of the solvent of component (C), and mix these according to a conventional method,
Manufactured by dissolving in water. Component (A) of the present invention is generally poorly soluble in water and does not form a transparent aqueous solution as it is. In addition, in the hair rinse agent of the present invention, in order to make the hair rinse agent transparent, the solvent component (C) is essential, but the amount required is extremely small compared to conventional methods, such as the above-mentioned method. In addition to the above-mentioned three essential components, the hair rinse agent of the present invention may contain appropriate bactericidal agents, fragrances, pigments, etc., as required. Furthermore, it is also possible to add oils and fats in small amounts. Hereinafter, the present invention will be further explained with reference to Examples.
The present invention is not limited to these examples. Example 1 A hair rinse agent having the following composition was manufactured, and its transparency and rinsing effect were examined. The results are shown in Table 1. Composition: Lauryltrimethylammonium chloride 1% by weight Ethyl alcohol 5 Polyoxypropylene derivative or polyoxyethylene/polyoxypropylene copolymer (Table 1) 2 Results:

【table】

[Table] Evaluation method: (1) Transparency After storing each manufactured hair rinse in a constant temperature room at 0℃ for 2 months, its condition was examined. Those that were transparent were rated ○, and those that were cloudy were rated ×. It was shown as (2) Hair frying, moist feeling of hair A hair bundle of length 20cm and weight 20g is soaked in a 5% aqueous solution of each hair rinse agent (40℃, 500ml) for 1 minute, and then ion exchanged at the same temperature and amount. After rinsing with water, excess moisture was removed with a towel, and the moisturizing feeling of the hair was evaluated. Next, dry your hair completely with a hair dryer, comb your hair 10 times with a commercially available nylon brush,
The hair fly immediately after that was evaluated. All evaluations were conducted by a panel of 10 female experts, using the following evaluation points, and the average values are shown in the table.

[Table] Yes. happen.
Example 2 A conventionally provided multi-solvent type transparent hair rinse agent and a transparent hair rinse agent using a nonionic surfactant, and a transparent hair rinse agent composition of the present invention were manufactured, and their hair rinse effects were compared. . The results are shown in Table 2. Formula: A (Product of the present invention) Monocetyltrimethylammonium chloride 2.0% POE/POP (POE10%, total molecular weight 3000) 3.0 Ethanol 10.0 Replacement water 85.0 B (Multi-solvent type transparent hair rinse agent) Monocetyltrimethylammonium chloride 2.0 Isopropyl Myristate 3.0 Ethanol 45.0 Replaced water 50.0 C (Transparent hair rinse using nonionic surfactant) Monocetyltrimethylammonium chloride 2.0 Liquid paraffin 3.0 Polyoxyethylene (30) Cetyl ether 5.0 Ethanol 5.0 Replaced water 85.0 Manufacturing method: A ( Invention product) Monocetyltrimethylammonium chloride, POE/POP (POE10%, total molecular weight 3000)
is dissolved in ethanol (at room temperature), and water is added to the mixture to obtain the present composition. B (Multisolvent type transparent hair rinse agent) Monocetyltrimethylammonium chloride and isopropyl myristate are dissolved in ethanol (room temperature), and water is added to the mixture to obtain the present composition. C (Transparent hair rinse agent using nonionic surfactant) Dissolve monocetyltrimethylammonium chloride, liquid paraffin, and polyoxyethylene (30) cetyl ether in ethanol,
Water is added to the mixed solution to obtain the present composition. Result:

[Table] The evaluation in this table was performed according to the method shown in Example 1. Example 3 A hair rinse with the formulation shown below was prepared and its appearance was examined. The results are shown in Table 3. Formula: A (Product of the present invention) Monocetyltrimethylammonium chloride 2.0% POE/POP (POE 10%, total molecular weight 3000) 3.0 Ethanol 10.0 Replacement water 85.0 D (Composition of JP-A-51-106746, Experimental Example 9) Distearyl ammonium chloride 1% Polyoxypropylene glycol 10% (:20 octyl ether) Ethanol 15 Replacement water 66 Polyoxyethylene nonyl phenyl ether 3 E (Composition of JP-A-55-102510, Example No. 6) Distearyldimethylammonium chloride 1% Cetyl alcohol 2 Liquid paraffin 1 Stearic acid 0.5 Polyoxyethylene cetyl ether 1 Polyoxypropylene monobutyl ether (=100) 1 Diester obtained from neopentyl glycol and 2-ethylhexanoic acid 1 Exchanged water 92.5 Fruit:

【table】

Claims (1)

[Claims] 1st order three components (A) General formula () (In the formula, R ₁ , R ₂ , R ₃ and R ₄ are either an alkyl group, a hydroxyalkyl group or a benzyl group, and one or two of them are long-chain alkyl groups with 8 to 20 carbon atoms or It is a long-chain hydroxyalkyl group, and the remainder is either an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group, or a benzyl group.X represents a halogen atom or an alkyl sulfate group having 1 to 2 carbon atoms) (B) Polyoxypropylene with a molecular weight of 200 to 2000 and a polyoxyethylene with a molecular weight of 2100 containing 5 to 40% by weight of polyoxyethylene in the molecule. 0.1 to 10% by weight of one or a mixture of two or more polyoxypropylene derivatives selected from the group consisting of ~10,000 polyoxyethylene polyoxypropylene copolymers, (C) ethyl alcohol, isopropyl alcohol, glycerin, sorbitol, A transparent hair rinse composition containing as an essential component 1 to 20% by weight of a solvent selected from the group consisting of ethylene glycol, propylene glycol, hexylene glycol, diethylene glycol, cellosolve, and ethyl carbitol.