JP2002114648A - Hair cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare an environmentally-friendly hair cosmetic capable of imparting softness, smoothness, oily feeling and rich feeling in wetting and smoothness, softness and good combing property after drying to hair and excellent in storage stability. SOLUTION: This hair cosmetic comprises (a) an amine represented by formula 1 [wherein R1 is an 8-40C alkyl group or alkenyl group; Y is an ester group or an amide group; R2 is a 1-5C alkylene group; R3 is H or a 1-24C alkyl group, alkenyl group or hydroxyalkyl group; R4 is H or a 1-5C alkyl group, alkenyl group or hydroxyalkyl group; (p) is an integer of 1-3; (q) and (r) are each an integer of 0-2; (p+q+r) is 3], (b) a 6-41C fatty acid, and (c) an inorganic acid or an organic acid other than the component (b), and the content of the component (b) is 0.5-5 wt.% based on the component (a).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention can impart sufficient flexibility, smoothness, oiliness and richness to hair, and is excellent in biodegradability, environmental safety and stable. The present invention relates to a hair cosmetic capable of producing a natural gel.

[0002]

2. Description of the Related Art Hair cosmetics impart to hair hair softness and smoothness when wet, oily feeling, smoothness and softness after drying, and combability. Is required. From such demands, conventionally, quaternary ammonium salts having a long-chain alkyl group as a surfactant, for example, stearyltrimethylammonium chloride or distearyldimethylammonium chloride, etc. are used. It is used in the form of a gel-form emulsified with long-chain alcohols and oils. However, they do not sufficiently satisfy the feeling of use when the hair is wet and after the hair is dried, and the quaternary ammonium salts described above are not biodegradable and have a large effect on aquatic organisms, so they are environmentally friendly. It is not preferable from the viewpoint of demand. It also has many problems, such as irritation of the scalp and eyes.

On the other hand, the use of a tertiary amine type amidoamine salt as a biodegradable base is disclosed in Japanese Patent Application Laid-Open Nos. 5-271035, 5-271036 and 2000-50143.
Although it is disclosed as 0 or the like, it still does not sufficiently satisfy the viewpoints of the requirements for the hair such as flexibility, smoothness, oiliness, and environmental requirements.

An object of the present invention is to provide hair with flexibility, smoothness, oiliness, and richness when wet, and smoothness, softness, and combability after drying. An object of the present invention is to provide a hair cosmetic which has degradability, is environmentally friendly, and can stably incorporate a long-chain alcohol, an oil agent, and the like.

[0005]

The present invention comprises the following components (a), (b) and (c), wherein the content of the component (b) is 0.1% relative to the component (a). Provided is a hair cosmetic which is 5 to 5% by weight. (A) An amine represented by the general formula (1) (hereinafter referred to as amine (1))

[0006]

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Wherein R ¹ is a linear or branched alkyl or alkenyl group having 8 to 40 carbon atoms, Y is an ester group or an amide group, and R ² is a linear or branched chain having 1 to 5 carbon atoms. R ³ represents a hydrogen atom or a linear or branched alkyl group having 1 to 24 carbon atoms, an alkenyl group or a hydroxyalkyl group, and R ⁴ represents a hydrogen atom or a linear or branched chain having 1 to 5 carbon atoms. An alkyl group, an alkenyl group or a hydroxyalkyl group, p is an integer of 1 to 3, q and r are integers of 0 to 2, and p + q + r is 3. Here, p R ¹ , Y, R ² , q R ³ , and r R ⁴ may be the same or different. (B) one or more acids selected from the group consisting of saturated or unsaturated higher fatty acids having 6 to 41 carbon atoms, (c) inorganic acids and organic acids other than component (b).

[0008]

DETAILED DESCRIPTION OF THE INVENTION In the amine (1), R¹Is charcoal
An alkyl or alkenyl group having a prime number of 8 to 27 is preferred
In particular, an alkyl group having 11 to 23 carbon atoms is preferable. R
^TwoIs preferably an alkylene group having 2 to 4 carbon atoms,
Alkylene groups of several to three are preferred. R ^ThreeHas 1 to 1 carbon atoms
22 alkyl groups, alkenyl groups or hydroxyalkyl
And particularly preferably an alkyl group having 1 to 5 carbon atoms or
Preference is given to droxyalkyl groups. R^FourHas 1 to 5 carbon atoms
An alkyl group, an alkenyl group or a hydroxyalkyl group
Preferably, especially an alkyl group having 1 to 5 carbon atoms or hydroxy
Preferred are silalkyl groups. Y is -COO-,
-OCO-, -CONH- or -NHCO- are examples.
And -COO- and -CONH- are preferred. p is 1 to
An integer of 2 is preferable, and q and r are preferably 0 or 1.

A particularly preferred amine (1) is R ³
And R ⁴ is a linear or branched alkyl or hydroxyalkyl group having 1 to 5 carbon atoms, and q and r are 0 or 1.
Is a tertiary amine.

The amine (1) can be obtained by, for example, a method of reacting a fatty acid having 9 to 41 carbon atoms with an amine having a hydroxyalkyl group. At this time, fatty acids derived from fatty acids obtained by decomposing and refining natural oils such as coconut oil, beef tallow, pork oil, palm oil, palm kernel oil, soybean oil, safflower oil, sunflower oil, olive oil, etc. However, lauric acid, myristic acid, oleic acid, stearic acid, behenic acid, coconut oil fatty acid, hydrogenated coconut oil fatty acid, tallow fatty acid, hydrogenated tallow fatty acid, palm oil fatty acid, hydrogenated palm oil fatty acid, palm kernel oil fatty acid, hardened Palm kernel oil fatty acids are preferred.

The component (b) is preferably a fatty acid having a straight or branched alkyl or alkenyl group having 8 to 40 carbon atoms, particularly 11 to 23 carbon atoms.
Fatty acids used for the production of the amine (1) include lauric acid, myristic acid, oleic acid, stearic acid, behenic acid, coconut oil fatty acid, hydrogenated coconut oil fatty acid, tallow fatty acid, hardened tallow fatty acid, palm oil fatty acid, Preferred are hardened palm oil fatty acids, palm kernel oil fatty acids, and hardened palm kernel oil fatty acids.

As the inorganic acid in the component (c), hydrochloric acid,
Examples of the organic acid other than the component (b) include organic acids having 1 to 5 carbon atoms, such as acetic acid, glycolic acid, lactic acid, glyceric acid, glutamic acid, malic acid, and succinic acid. Is mentioned. Particularly preferred among the components (c) are hydrochloric acid, sulfuric acid, lactic acid, glutamic acid and malic acid.

[0013] The content of the component (b) in the hair cosmetic composition of the present invention is 0.5 to the component (a) in view of the storage stability of the emulsion, the odor, and the good feel of the hair. ~ 5% by weight
And preferably 1 to 4.5% by weight.

The content of the component (a) in the hair cosmetic composition of the present invention is preferably 0 from the viewpoints of obtaining a good feeling of the hair and stabilizing products such as sedimentation, solidification, and separation during storage. .3
-5% by weight is preferred, and 1-5% by weight is particularly preferred.
The content of the component (c) is 0.3 to
It is preferably 5 mol times, particularly preferably 0.4 to 3 mol times.

The hair cosmetic composition of the present invention is used by adjusting the pH in the composition so that part or all of the component (a) is replaced with a salt. .
It is preferable to use it after adjusting it to 5 to 5.

The hair cosmetic composition of the present invention preferably further contains a higher alcohol. The higher alcohol used in the present invention has 10 to 30 carbon atoms, especially 12 to
Higher alcohols having 26 linear or branched alkyl or alkenyl groups are preferred, and cetanol, cetyl alcohol, stearyl alcohol, aralkyl alcohol, behenyl alcohol, calanavir alcohol, and seryl alcohol are preferred.

The hair cosmetic composition of the present invention includes other cationic surfactants, anionic surfactants, nonionic surfactants,
Surfactants such as amphoteric surfactants, silicones, hydrocarbons, lanolin derivatives, higher fatty acid esters, higher fatty acids, fats and oils, glycerin, humectants, cationic polymers, polysaccharides, polypeptides, pearling agents , Solvents, liquid crystal forming bases, aromatic sulfonic acids, dyes, fragrances, propellants,
Chelating agents, pH adjusters, preservatives, antidandruff agents, antioxidants and the like can be appropriately compounded within a range that does not impair the purpose of the present invention.

The hair cosmetic composition of the present invention comprises an aqueous solution, an ethanol solution, an emulsion, a suspension, a gel, a liquid crystal,
It can be made into a desired dosage form such as solid or azool.

[0019] The hair cosmetic composition of the present invention comprises a hairline, a hair conditioner, a hair treatment, a hairpack,
It can be used for hair cream, conditioning mousse, hair mousse, hair spray, shampoo, leave-on treatment and the like.

[0020]

EFFECT OF THE INVENTION The hair cosmetic composition of the present invention has very good emulsifying properties such as an oil agent as a feel improving agent and has excellent long-term stability of the emulsified gel. Moreover, it can impart good rich feeling when wet and its durability, flexibility and smoothness to the hair, is excellent in biodegradability and environmental safety, and is extremely useful as a hair cosmetic. is there.

[0021]

EXAMPLES In the following examples, all percentages are by weight.

Examples 1 to 8 and Comparative Examples 1 to 4 Using the amines A to F as the component (a) of the present invention shown in Table 1, hair rinse agents having the compositions shown in Tables 2 and 3 were produced by a conventional method. did. These hair rinse agents were evaluated by the following methods. The results are shown in Tables 2 and 3.

<Evaluation Method> Emulsifiability After the hair rinse was produced, the emulsified state after standing at room temperature (25 ° C.) for 3 hours was evaluated according to the following criteria.

○: The emulsified gel is kept stable Δ: Slightly separated ×: Separation ・ Emulsion storage stability As an accelerated test of storage, the hair emulsifier was stored at 50 ° C. for 3 weeks, and the gel emulsified state was determined as follows: Evaluation was based on criteria.

○: The emulsified gel is kept stable △: Slightly separated ×: Separated ・ Smell A 5% aqueous dispersion of the prepared hair rinse was placed in a 100 mL beaker, and stirred at room temperature with 5 panelists. The sensory evaluation of the odor was performed according to the following criteria.

○: Four or more persons did not feel off-flavor.

(2): Two or three persons did not feel a bad smell.

X: Four or more persons felt an unpleasant odor.

Performance at the time of application to hair, rinsing, and after drying 20 g of hair (20 cm in length, average diameter of 60 μm) of a Japanese woman who has not been subjected to a chemical treatment such as cold perm is bundled, and 5 g of shampoo is used. And washed. This shampoo composition is polyoxyethylene alkyl (C12)
Sodium ether sulfate (average number of moles of ethylene oxide added: 2.5) 15%, diethanolamide 3%, the balance being water.

Thereafter, the prepared hair rinse was heated at 50 ° C.
Apply 2.0 g of the stored product for 3 weeks, and apply for 4
Rinse with running water at 0 ° C. At the time of this application, the rich feeling at the time of rinsing and its persistence, flexibility, smoothness, and softness after drying,
The combing feeling was sensory-evaluated by 10 expert panelists according to the following criteria.

A; 9 or more respondents B; 6 to 8 respondents C; 3 to 5 respondents D; 2 or less respondents

[0032]

[Table 1]

[0033]

[Table 2]

[0034]

[Table 3]

Example 9 A hair rinse having the following composition was produced.

Amine A 3.0% Behenic acid 0.09% (based on amine A 3%) Lactic acid 2.0% Cetanol 5.0% Isopropyl palmitate 3.0% Dimethyl polysiloxane 1.5% (Average molecular weight 9000) Polyether-modified silicone 2.0% (KF6005, manufactured by Shin-Etsu Chemical Co., Ltd.) Propylene glycol 2.0% 50% citric acid aqueous solution 0.1% Fragrance, methyl paraben Appropriate amount Purified water balance (pH 3.5) The emulsion was emulsified into a gel, and the odor and the storage stability of the emulsion were good. Furthermore, at the time of application, rich feeling at the time of rinsing and its persistence, flexibility, smoothness,
Also, the softness and combability after drying were good.

Example 10 A hair treatment agent having the following composition was produced.

Amine D 4.0% Behenic acid 0.08% (to amine D2%) 35% hydrochloric acid aqueous solution 1.1% Cetanol 7.0% Dimethylpolysiloxane (average molecular weight 9000) 6.0% Polymonostearate Oxyethylene sorbitan 0.8% (average number of moles of ethylene oxide added 20) Dipropylene glycol 7.0% Glycerin 9.0% 50% Citric acid aqueous solution 0.2% Fragrance, methyl paraben Appropriate amount Purified water Balance (pH 3.5) This hair The treatment agent was emulsified into a gel, and the odor and the storage stability of the emulsion were good.
Furthermore, the rich feeling at the time of coating and rinsing and its persistence, flexibility, smoothness, and the softness after drying and the combing feeling were also good.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Tohru Kato 1334 Minato, Wakayama-shi, Wakayama Prefecture F-term (reference) 4C083 AB012 AB102 AC022 AC072 AC122 AC231 AC242 AC251 AC302 AC521 AC532 AC582 AC642 AD152

Claims (3)

[Claims] 1. The following components (a), (b) and (c)
A hair cosmetic containing a component, wherein the content of the component (b) is 0.5 to 5% by weight based on the component (a). (A) An amine represented by the general formula (1) [In the formula, R ¹ is a linear or branched alkyl or alkenyl group having 8 to 40 carbon atoms, Y is an ester group or an amide group, and R ² is a linear or branched alkylene group having 1 to 5 carbon atoms. , R ³ is a linear or branched alkyl group having a hydrogen atom or 1 to 24 carbon atoms, an alkenyl group or hydroxyalkyl group, R ⁴ is 1 hydrogen atom or a carbon atoms
5 linear or branched alkyl, alkenyl or hydroxyalkyl groups, p is an integer of 1 to 3, q and r
Is an integer of 0 to 2, and p + q + r is 3. Here, p R ¹ , Y, R ² , q R ³ , and r R ⁴ may be the same or different. (B) one or more acids selected from the group consisting of saturated or unsaturated higher fatty acids having 6 to 41 carbon atoms, (c) inorganic acids and organic acids other than component (b). 2. The hair cosmetic according to claim 1, wherein the component (b) is a fatty acid having a linear or branched alkyl or alkenyl group having 8 to 40 carbon atoms. 3. Component (a) is 0.3 to 5% by weight, (c)
The hair cosmetic according to claim 1 or 2, wherein the component is contained in an amount of 0.3 to 5 times the amount of the component (a).