JPH05262624A - Hair cosmetic - Google Patents

Abstract

PURPOSE:To provide a hair cosmetic having excellent feeling in use and giving an excellent finished hair. CONSTITUTION:The objective hair cosmetic contains (A) 0.1-20wt.% of at least one kind of cationic surfactant, (B) 0.1-20wt.% of an ester compound of 1 mol of a polyhydric alcohol or a condensed polyhydric alcohol and >=2 mol of a straight or branched-chain fatty acid containing <50 mol% of hydroxyfatty acid and (C) 0-50wt.% of at least one kind of silicone oil having a viscosity of >=10,000 cst at 25 deg.C.

Description

Detailed Description of the Invention

[0001]

The present invention relates to, for example, a hair rinse,
It relates to hair cosmetics such as hair treatments, hair conditioners and hair sprays.

[0002]

2. Description of the Related Art In order to improve hair defects such as dryness of hair, deterioration of smoothness or deterioration of combing, which occur after perm treatment, hair washing or styling, for example, hair rinse, hair treatment Hair care products such as, hair conditioners, hair spray styling mousses are used.

Conventionally, various hair cosmetics such as those containing a cationic surfactant as a main component and those containing an oil component such as silicone oil or olive oil have been provided.

[0004]

SUMMARY OF THE INVENTION Today, there is a demand for a hair cosmetic composition which has a smooth feeling of use and promises a smooth, moist and moist finish after drying.

However, the silicone oils and oil components that have been blended in conventional hair cosmetics, when used alone, are insufficient in terms of both the feeling of use and the feeling of finish. For example, silicone oil has a very high effect of imparting smoothness to hair, but lacks a moist feeling. On the other hand, if it is blended in too large a quantity, on the contrary, stickiness occurs and smoothness cannot be obtained. On the other hand, oils such as olive oil have an excellent effect of imparting a moist feel, but lack in smoothness.

When such a silicone oil and an oil component are used in combination, a hair cosmetic having an effect of imparting smoothness and an effect of imparting a moist feeling and eliminating dryness can be obtained. It lacks smoothness when applied and smoothness when applied. This slimy feeling is one of the important factors that reminds the user of the nutritional feeling of hair cosmetics. The present invention has been made in view of the above points, and an object of the present invention is to provide a hair cosmetic composition that can achieve both an excellent feeling of use and a good feeling of finish.

[0007]

The present invention provides (A) 0.1-20% by weight of at least one cationic surfactant, and

(B) 0.1 to 20% by weight of an ester compound of 1 mol of a polyhydric alcohol or a polyhydric alcohol condensate and 2 or more mols of a linear or branched fatty acid containing less than 50 mol% of a hydroxy fatty acid. The present invention provides a hair cosmetic composition.

Here, the hair cosmetic composition comprises (C) at least one kind of silicone oil having a viscosity of 10,000 centistokes or more at 25 ° C. of 0.1 to 50% by weight.
It is preferable to contain Hereinafter, the hair cosmetic composition of the present invention will be described in more detail.

Examples of the cationic surfactant as the component (A) in the hair cosmetic composition of the present invention include, for example, the quaternary ammonium salt of the general formula (1) shown in Chemical formula 1 and mono-N-
It is particularly preferable to use a cationic surfactant selected from long-chain acyl basic amino acid lower alkyl ester salts.

[0011]

[Chemical 1]

[Wherein R ¹ Is an alkyl group or alkenyl group having 10 to 24 carbon atoms, a hydroxyalkyl group having 10 to 24 carbon atoms or R ⁵ _{- (COH 2 CH 2) n} -
(However, R ⁵ Is an alkyl group having 10 to 24 carbon atoms or a hydroxyalkyl group having 10 to 24 carbon atoms, and n is 1 to 1
Is an integer of 0). R ² Is an alkyl group having 1 to 3 carbon atoms,

[0013]

[Chemical 2]

(However, R ⁶ Is a hydrogen atom or a methyl group, m is an integer of 1 to 5), a benzyl group, a cinnamyl group, an alkyl group or an alkenyl group having 10 to 24 carbon atoms, a hydroxyalkyl group having 10 to 24 carbon atoms, or R
^Five _{- (COH 2 CH 2) n} - ( provided that, R ⁵ And n have the same meaning as above). R ³ And R ⁴ Are each an alkyl group having 1 to 3 carbon atoms,

[0015]

[Chemical 3] (However, R ⁶ And m represent the same meaning as described above), benzyl group or cinnamyl group. X ¹ Is a halogen atom, a methylsulfate group or an ethylsulfate group. ]

The quaternary ammonium salt of the general formula (1) is
While imparting an appropriate hydrophobicity to the hair cosmetic composition and improving the affinity for the hair, it has an ability to impart an appropriate water retention property to the hair and make the hair soft and supple.

Here, the carbon number of the alkyl group and alkenyl group is within the range of 10 to 24, preferably 12 to 22. If the number of carbon atoms is less than 10, the effect of making hair soft and supple may not be sufficiently exhibited.
If it exceeds 4, the hair becomes stiff and hard, and the effect of softening the hair tends to decrease.

The anion constituting the quaternary ammonium salt of the general formula (1) is preferably, for example, a halogen ion, a methylsulfate ion or an ethylsulfate ion. Such anions impart appropriate hydrophobicity and water retention to hair cosmetics.

On the other hand, as the basic amino acid which constitutes the N-long chain acyl basic amino acid lower alkyl ester salt,
For example, natural amino acids such as ornithine, lysine, and arginine, or synthetic amino acids such as α, γ-diaminobutyric acid can be used.

Examples of the ester of these basic amino acids include propyl ester, butyl ester, pentyl ester, hexyl ester, heptyl ester,
Examples include octyl ester.

Examples of these salts include inorganic acid salts such as hydrochlorides and sulfates, acetates, tartrates, citrates, p-toluenesulfonates, higher fatty acid salts, L or DL-pyrrolidone. Organic acid salts such as carboxylic acid salts, acidic amino acid salts and pyroglutamic acid salts can be mentioned. Among these, hydrochloride, L- or DL-pyrrolidone carboxylate and acidic amino acid salt are particularly preferable. In the hair cosmetic composition of the present invention, one kind of the above-mentioned component (A) cationic surfactant may be used, or two or more kinds thereof may be used in combination.

The content of the cationic surfactant as the component (A) is 0.1 to 20% by weight, preferably 0.5 to 10%.
It is in the range of% by weight. If the content is less than 0.1% by weight,
The effect of making hair soft and supple cannot be obtained. On the other hand, if the content exceeds 20% by weight, the hair becomes sticky, which is not preferable. Examples of the component (B) in the hair cosmetic composition of the present invention include polyhydric alcohols or polyhydric alcohol condensates (HO) _n R—O—R (OH) _n (2) represented by the formula (2).

(Wherein R is a residue obtained by removing a hydroxyl group from a polyhydric alcohol having 2 to 6 hydroxyl groups, n
Is a natural number of 1 to 5) and an ester compound of 1 mol and 2 mol or more of a linear or branched fatty acid containing less than 50 mol% of a hydroxy fatty acid is used.

Examples of polyhydric alcohols and polyhydric alcohol condensates include ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, glycerin, diglycerin, erythritol, pentaerythritol, dipentaerythritol, 1,3-. Examples thereof include butylene glycol, glucose, sucrose, fructose, maltose, maltitol, xylitol, inositol and the like. Of these, dipentaerythritol is most preferably used for the hair cosmetic composition of the present invention.

Here, the straight-chain fatty acid is, for example, a compound represented by the general formula R
_{It is represented by 1} COOH (R ₁ : hydrocarbon group) and may be saturated or unsaturated. The carbon number of straight chain fatty acid is
It is preferably 8 or more. Specifically, decanoic acid, lauric acid, myristic acid, palmitic acid, stearic acid,
Examples include behenic acid.

The branched fatty acid may be saturated or unsaturated, and preferably has 8 or more carbon atoms. Specifically, 2-ethylhexanoic acid, 3,5,5-trimethylhexanoic acid, tetramethylnonanoic acid, 2-hexyldecanoic acid, 2-hebutylundecanoic acid, citronellic acid, isostearic acid, and, for example, abietic acid , A resin acid represented by rosin acid such as dehydroabietic acid, neoabietic acid, parastophosphoric acid, pimaric acid, and isopimaric acid. The hydroxy fatty acid is not particularly limited, but 1-hydroxylauric acid and 12-hydroxystearic acid are particularly preferable.

The hydroxy fatty acid may be used alone or in combination of two or more, and the content thereof is less than 50 mol% of the fatty acid. When it is 50 mol% or more, the hair becomes sticky and the desired effect cannot be obtained. Such fatty acids can be used alone or in combination of two or more.

The content of the polyhydric alcohol condensate as the component (B) and the ester compound of the fatty acid is preferably 0.1 to 20% by weight based on the entire hair cosmetic composition. If it is less than 0.1% by weight, a moist feel cannot be obtained, and if it exceeds 20% by weight, heavy stickiness occurs and smoothness deteriorates, which is not preferable.

In the hair cosmetic composition of the present invention, the silicone oil as the component (C) may be optionally added to the hair cosmetic composition in order to impart a slimy feel at the time of application and a smooth feel at the time of rinsing. Various silicone oils can be used alone or in combination of two or more. As the silicone oil, for example, those represented by the general formula (3) of Chemical formula 4 are particularly preferable, and specific examples thereof include dimethylpolysiloxane (dimethylsilicone oil) and methylphenylpolysiloxane.

[0030]

[Chemical 4]

(In the formula, R ₁₁ is a hydrogen atom and has 1 to 3 carbon atoms.
Is a lower alkyl group or a phenyl group, and R ₁₂ is a lower alkyl group having 1 to 3 carbon atoms or a hydroxyl group. Further, it is particularly desirable that n is 900 or more. )

Component (C) silicone oil is 25 ° C.
Viscosity at 10,000 centistokes (cst)
The above is preferable, and more preferably 10,000 to
3,000,000 cst, most preferably 100,000
It is 0 to 2,000,000 cst. Viscosity is 10,000
When it is less than 0 cst, it is difficult to obtain a smooth feeling of use.

The blending amount of the component (C) silicone oil is preferably 0.1 to the total amount of the hair cosmetic composition.
50% by weight, particularly preferably 0.1 to 20% by weight. When the blending amount is less than 0.1% by weight, it becomes difficult to impart a smooth feeling to the hair cosmetic composition. If it exceeds 50% by weight, the hair tends to become sticky, resulting in a heavy finish.

The hair cosmetic composition of the present invention includes the above-mentioned (A) to (A).
In addition to the component (C), it is generally added to hair cosmetics as needed. Contains fatty acids, higher alcohols, emulsion stabilizers, cryoprotectants, thickeners, plant extracts, animal extracts, animal and plant metabolites, protein derivatives, crude drugs, fungicides, oils, surfactants, pH regulators or pigments. it can.

Such a hair cosmetic composition of the present invention is specifically used as a hair rinse, a hair conditioner, a hair treatment, a hair pack, a hair spray, a styling mousse, a liquid and the like.

[0036]

In the hair cosmetic composition of the present invention, the components (A) and (B) are used in combination, so that the hair is soft and supple, and a moist and moist finish is imparted to the hair. It imparts a slimy feel to the hair cosmetic composition when applied and a smooth feel when rinsed.

[0037]

EXAMPLES Examples of the hair cosmetic composition of the present invention will be described below. First, we will explain the sample preparation method and evaluation method (1) Sample preparation

A) A cationic surfactant, an ester compound of a polyhydric alcohol condensate and a fatty acid, an oil component, a silicone oil, an oil component such as a solvent and an emulsifier are added in an amount of 40 to 80.
An oil phase is prepared by dissolving by heating at ℃. b) A water phase is prepared by dissolving an aqueous component such as a dye, a pH adjuster and a water-soluble polymer in water. c) The aqueous phase is heated to 25 to 80 ° C., gradually added to the oil phase with a homomixer, and then cooled to obtain a sample. (2) Evaluation method

20 women in their 20s to 30s (hair length: short-semi-long to long, degree of damage: almost undamaged, slightly damaged, considerably damaged) were compared left-right with a half head. went. The judgment was performed by 10 professional judges, and the average was used.
Here, the composition shown in Table 1 was used as a standard product as a criterion for determination.

[0040]

[Table 1] In addition, it was judged according to the sensory evaluation in the next stage. ⊚: Superior to the standard product ◯: Slightly superior to the standard product Δ: Equivalent to the standard product ×: Slightly inferior to the standard product XX: Inferior to the standard product Examples 1 to 5

According to the present invention, the hair rinses of Examples 1 to 5 and Comparative Examples 1 to 8 were prepared, and their use feeling and finished feeling were evaluated. Here, stearyl trimethyl ammonium chloride is used as the component (A), dipentaerythritol fatty acid ester is used as the component (B), and
As a component, dimethyl silicone oil having a viscosity of 500.000 at 25 ° C. (hereinafter referred to as dimethyl silicone oil) was used.

[0042]

[Table 2]

As is clear from Table 2, (A) to (C)
The hair rinses of Examples 1 to 5 in which the components were blended in various proportions within the scope of the present invention were all slimy during application and smoothness during rinsing, non-greasy after drying, and non-drying. , Was superior to the standard product in all respects of moistness and smoothness. In particular, the hair rinse of Example 2 was the most excellent.

On the other hand, the hair rinse compound of Comparative Example 1 lacking the ester compound of the polyhydric alcohol condensate of the component (B) and the fatty acid was compared with the compounding amount of the component (B) as small as 0.03% by weight. Both the hair rinse compounds of Example 2 were inferior to the standard product in both the feeling of use and the feeling of finish.

Further, the hair rinses of Comparative Example 3 lacking the cationic surfactant as the component (A) and Comparative Example 4 in which the amount of the cationic surfactant was as small as 0.03% by weight, were inferior in usability to the standard product. Example 6 Hair rinses shown in Table 3 were prepared and evaluated in the same manner as in Examples 1-5. The results are also shown in Table 3.

[0046]

[Table 3] As is clear from Table 3, the hair rinse of Example 6 was found to be superior to the standard product in terms of both use feeling and finished feeling. Example 7 The hair treatments shown in Table 4 were prepared and Examples 1-5
It evaluated similarly to. The results are also shown in Table 4.

[0047]

[Table 4] As is clear from Table 4, the hair treatment of Example 7 was found to be superior to the standard product in both the feeling of use and the feeling of finish. Example 8 A hair conditioner of Example 8 shown in Table 5 was prepared,
It evaluated similarly to Examples 1-5. The results are also shown in Table 5.

[0048]

[Table 5] As is clear from Table 5, the hair conditioner of Example 8 was found to be superior to the standard product in terms of both the feeling of use and the feeling of finish. Example 9 The hair rinse of Example 9 shown in Table 6 was prepared, and Examples 1 to 1 were prepared.
It evaluated similarly to 5. The results are also shown in Table 6.

[0049]

[Table 6] As is clear from Table 6, the hair rinse of Example 9 was found to be superior to the standard product in both the feeling of use and the feeling of finish.

[0050]

Industrial Applicability As described above, the hair cosmetic composition of the present invention has a slimy feel when applied to hair and a smooth feeling of use when rinsed off, and is smooth and moisturized on hair. It has remarkable effects such as imparting a moist finish.

Claims (2)

[Claims] 1. (A) 0.1 to 20% by weight of at least one cationic surfactant, and (B) 1 mol of a polyhydric alcohol or a polyhydric alcohol condensate, and less than 50 mol% of a hydroxy fatty acid. A hair cosmetic comprising 0.1 to 20% by weight of an ester compound with 2 or more moles of a linear or branched fatty acid containing. 2. The hair cosmetic composition according to claim 1, which contains 0.1 to 50% by weight of at least one silicone oil having a viscosity at 25 ° C. of 10,000 centistokes or more.