JPH07138137A - Hair-dye composition - Google Patents

Abstract

PURPOSE:To provide a hair-dye composition exhibiting excellent dyeing power and conditioning effect and having excellent effect to prevent the transfer of color to the scalp and hand. CONSTITUTION:The objective hair-dye composition has a pH of 2-5, preferably 2.5-4a and contains (A) a cationic surfactant, preferably a compound of formula I [R<2> is a 8-28C straight or branched chain alkyl or hydroxyalkyl; R<2> is a 1-4C alkyl, a hydroxyalkyl, benzyl, pyidyl or R<1>; R<3> and R<4> are a 1-4C alkyl, a hydroxyalkyl or a group of formula II (R<5> is H or a 1-4C alkyl; l is 1-20); X is a halogen or a 1-2C alkylsulfate group], (B) an aromatic alcohol, preferably a compound of formula III (R<6> is H, methyl or methoxy; Y is single bond, an alkylene or an alkenylene; Z is H or OH; p and q are 0-5), (C) a higher fatty acid, preferably a 10-22C fatty acid, (D) an acid dye and (E) an acid, preferably a weak acid.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair dye composition which is excellent in dyeing power and conditioning effect and has less color transfer to the scalp and hands.

[0002]

2. Description of the Related Art In recent years, there has been a growing demand from the consumer to make gray hair gradually less noticeable, to make black hair lighter, and to change the nuances of hair color. In order to fill the hair, a small amount of acid dye is added to the hair, which is used like a rinse when washing hair, and a type of hair dye that gradually colors (white) hair is being put on the market. However, these types of hair dyes
Since an acidic dye is used in combination with an aromatic alcohol-based penetration enhancer such as benzyl alcohol and an organic acid to penetrate at low pH, there is a problem that the hair loses its moistness and the hair becomes sticky. On the other hand, in ordinary rinses and the like, a cationic surfactant is used as a conditioning component, but since these have a positive charge in a normal acid dye-based hair dye,
Since it forms a complex with an acid dye having a negative charge and does not penetrate into hair, the dyeing power is significantly impaired. Usually, these hair dyes may contain a cationic surfactant. could not.

Therefore, the present inventors have proposed a means for solving the above-mentioned problems by using an amine oxide type surfactant (JP-A-5-229919), but they are still sufficiently satisfactory in terms of conditioning. It did not reach the desired effect.

Further, a hair dye using a specific ammonium salt (JP-A-4-164018, JP-A-5-434).
No. 38) has also been reported, but no sufficient effect has been recognized, and thus, up to now, an acid dye-based hair dye excellent in both dyeing power and conditioning effect has not been obtained.

[0005]

SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to impart a conditioning effect to a hair dye containing an acid dye without reducing its dyeing power.

Under such circumstances, as a result of intensive studies by the present inventors, as a result, a system containing an acidic dye, a permeation enhancer of an aromatic alcohol system and an acid, a cationic surfactant and a higher fatty acid were added. By combining and combining
The inventors have found that a hair dye composition having excellent dyeing power and conditioning effect and having less color transfer to the scalp and hair can be obtained, and completed the present invention.

That is, the present invention comprises the following components (a)-
(E), (a) Cationic surfactant (b) Aromatic alcohol (c) Higher fatty acid (d) Acid dye (e) Acid-containing dye having a pH of 2 to 5 A hair composition is provided.

The cationic surfactant as the component (a) used in the present invention has a general formula (1);

[0009]

[Chemical 3]

Those represented by are preferred. Specific examples thereof include lauryl trimethyl ammonium chloride, lauryl trimethyl ammonium bromide, myristyl trimethyl ammonium chloride, myristyl trimethyl ammonium bromide, cetyl trimethyl ammonium chloride, cetyl trimethyl ammonium bromide, stearyl trimethyl ammonium chloride, stearyl trimethyl ammonium bromide, Behenyltrimethylammonium chloride, behenyltrimethylammonium bromide, cetyltrimethylammonium methanesulfonate, stearyltrimethylammonium methanesulfonate, myristyldimethylbenzylammonium chloride, cetyldimethylbenzylammonium chloride, stearyldimethylbenzylammonium chloride, octyldihydroxyethylmethylammonium chloride, chloride Stearyl dimethyl ammonium, dicetyl dimethyl ammonium chloride, dicocoyl dimethyl ammonium chloride, dialkyl (12-15) dimethyl ammonium chloride, dialkyl (14-18) dimethyl ammonium chloride, 2-decyl tetradecyl trimethyl ammonium chloride, 2-dodecyl hexa chloride Decyltrimethylammonium, di (2-hexyldecyl) dimethylammonium chloride, di (2-octyldodecyl) dimethylammonium chloride, dipolyoxyethylene (2) coconut oil alkylmethylammonium chloride, dipolyoxyethylene (15) coconut oil Examples thereof include alkyl methyl ammonium and hydroxyethyl cetyl dimethyl ammonium chloride.

These cationic surfactants can be used alone or in combination of two or more in the hair dye composition of the present invention, and are usually 0.1 to 8% by weight (hereinafter, simply in%). Represented), more preferably 0.5 to 5%. If the blending amount is less than 0.1%, it cannot be expected to have a sufficient effect because it easily falls off by washing, and if it is more than 8%, further increase in the effect cannot be expected.

The aromatic alcohol of component (b) used in the present invention can be combined with the acid of component (e) to give
It is used to penetrate the acid dye into the hair. This aromatic alcohol has the general formula (2);

[0013]

[Chemical 4]

(In the formula, R ⁶ is a hydrogen atom, a methyl group or a methoxy group, Y is a single bond, an alkylene group or an alkenylene group, Z is a hydrogen atom or a hydroxyl group, and p and q are 0 to 0.
And the like. Specific examples include benzyl alcohol, cinnamyl alcohol, phenethyl alcohol, p-anisyl alcohol, p-methylbenzyl alcohol, phenoxyethanol, 2-benzyloxyethanol and the like. .

These aromatic alcohols can be used alone or in combination of two or more in the hair dye composition of the present invention, usually 1 to 20%, more preferably 2%.
~ 15% blended. If the content is less than 1%, the effect of promoting penetration of the acid dye cannot be expected, and if it is more than 20%, color transfer to the scalp and skin increases.

The higher fatty acid as the component (c) used in the present invention is for promoting permeation of the acidic dye into the hair in a system containing a cationic surfactant, and usually has 10 carbon atoms. ~ 22 linear or branched, saturated or unsaturated higher fatty acids, and specifically, lauric acid,
Examples thereof include myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid and oleic acid.

These higher fatty acids can be used alone or in combination of two or more in the hair dye composition of the present invention, and are usually 0.5 to 10%, more preferably 1 to 10.
7% is blended. If the blending amount is less than 0.5%, the effect of promoting penetration of the acid dye into the hair is insufficient.
If it is 0% or more, color transfer to the scalp and skin increases.

As the acid dye of the component (d) used in the present invention, known ones can be appropriately selected. Specific examples thereof include acid dyes of red 2, red 3, red 102 and red 1.
No. 04, Red No. 105, Red No. 106, Yellow No. 4, Yellow No. 5, Green No. 3, Blue No. 1, Blue No. 2, Red No. 201,
Red 227, Red 230, Red 231, Red 23
No. 2, Orange No. 205, Orange No. 207, Yellow No. 202, Yellow No. 203, Green No. 201, Green No. 204, Green No. 205
No. 202, Blue No. 202, Blue No. 203, Blue No. 205, Brown No. 201, Red No. 401, Red No. 502, Red No. 503
No., Red 504, Red 506, Orange 402, Yellow 402, Yellow 403, Yellow 406, Yellow 407
No. 401, green No. 401, green No. 402, purple No. 401, black No. 401 and the like.

These acid dyes can be used alone or in combination of two or more in the hair dye composition of the present invention, and usually 0.0 to 0.0 depending on the required color tone and dyeing power.
The content is 5 to 3%, more preferably 0.08 to 1%.

The component (e) as the acid used in the present invention is
When combined with the aromatic alcohol of component (b), it has the effect of allowing the acidic dye to penetrate into the hair. These acids are preferably weak acids because the hair itself has an ion-exchange ability, and specific examples of such weak acids include citric acid, glycolic acid, succinic acid, tartaric acid, lactic acid, acetic acid and fumaric acid. , Malic acid, levulinic acid, butyric acid, valeric acid, oxalic acid, maleic acid, mandelic acid, phosphoric acid and the like. More preferably, these weak acids are combined with their potassium salts, sodium salts and the like to give the system buffering ability.

These acids can be used alone or in combination of two or more in the hair dye composition of the present invention.
The amount is 0.5 to 10%, more preferably 1 to 7%.
Further, the pH of the entire hair dye composition is preferably adjusted to 2 to 5, and more preferably 2.5 to 4, by adjusting with the above-mentioned weak acid and its salt. When the pH is 2 or less, color transfer to the scalp and hands increases, and when the pH is 5 or more, the effect of promoting penetration of the acid dye cannot be expected.

The hair dye composition of the present invention may contain a known lower alcohol or lower polyol for the purpose of increasing the solubility of the aromatic alcohol as the component (b) in the composition. . Specific examples of such lower alcohols and lower polyols include ethanol, isopropanol, n-propanol, n-butanol, ethylene glycol, propylene glycol, isoprene glycol, 1,3-butylene glycol and glycerin.

In the hair dye composition of the present invention, if necessary, anionic surfactants, amphoteric surfactants, polyoxyethylene alkyl ethers, etc. may be added to the extent that the effects of the present invention are not impaired. Nonionic surfactants, cationic polymers such as cationized cellulose, anionic polymers such as xanthan gum, amphoteric polymers, water-soluble polymers such as hydroxyethyl cellulose, oil agents such as paraffin oil, lanolin and silicone oil, sterilization Ingredients, hair regrowth agents, preservatives, anti-dandruff agents, fragrances and the like may be contained in the general cosmetic ingredients.

[0024]

Industrial Applicability As described above in detail, the hair dye composition of the present invention has excellent dyeing power and conditioning effect, and also has an excellent effect that there is little color transfer to the scalp and hands. Is.

[0025]

EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited thereto.

Examples 1-5 and Comparative Examples 1-4

Various hair dye compositions having the compositions shown in Table 1 were prepared by a conventional method, and a performance evaluation test was conducted by the following evaluation method. The results of the performance evaluation are also shown in Table 1. (Hair dyeing) A 10 cm-long white hair bundle was washed with a commercially available shampoo solution, rinsed thoroughly, and excess water was wiped off on a towel. About 0.6 g of each hair dye composition shown in Table 1 was applied, spread evenly, and allowed to stand for 3 minutes, thoroughly rinsed with warm water and dried. (Dyeing property) The color difference E ₀ of the gray hair before dyeing and the color difference E ₁ after dyeing are measured with a CR200 type color difference meter manufactured by Minolta, and the color difference (ΔE = E ₁ −E ₀ ) is determined. It was calculated. Note that Δ
The larger E is, the higher the dyeing property is. (Conditioning effect) It was evaluated by 10 female panelists. As an evaluation method, good (5 points), good (4 points), neither (3 points), rather bad (2 points)
The evaluation of the feel of the finished product was carried out on a scale of 5 (poor) and 1 (poor), and the average score was taken.

[0028]

[Table 1]

[Procedure amendment]

[Submission date] December 13, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

[0006]

Under such circumstances, as a result of intensive studies by the present inventors, as a result, a system containing an acid dye, an aromatic alcohol-based penetration enhancer and an acid,
By combining a cationic surfactant and a higher fatty acid in combination, it is possible to obtain a hair dye composition having excellent dyeing power and conditioning effect, and having less color transfer to the scalp and hair. Heading, completed the present invention.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Waho Masumoto 2-1-3 Bunka, Sumida-ku, Tokyo Inside Kao Corporation, Tokyo Research Institute (72) Inventor Yutaka Shibata Bunhana, Sumida-ku, Tokyo 2-1 3 Tokyo Research Institute, Kao Corporation

Claims (3)

[Claims] 1. The following components (a) to (e), (a) a cationic surfactant (b) an aromatic alcohol (c) a higher fatty acid (d) an acid dye (e) an acid, and a pH value. Is 2-5. Hair dye composition characterized by the above-mentioned. 2. The cationic surfactant is represented by the general formula (1): The hair dye composition according to claim 1, which is represented by: 3. The aromatic alcohol is represented by the general formula (2): (In the formula, R ⁶ represents a hydrogen atom, a methyl group or a methoxy group,
Y represents a single bond, an alkylene group, or an alkenylene group, and Z
Is a hydrogen atom or a hydroxyl group, and p and q are integers of 0 to 5).
The hair dye composition according to claim 2.