JPH0118047B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to hair dyes. More specifically, the present invention relates to a one-component hair dye that dyes hair without causing skin damage and imparts wettability, smoothness, and luster to the dyed hair. Traditionally, hair dyes include (1) vegetable dyes such as henna and chamomile, (2) organic metal salts such as bismuth tartrate and iron tannate, (3) acid dyes, direct dyes, and mordant dyes. Many one- to three-drug formulas using oxidative dyes and the like are known. Among these, (1) does not provide a wide variety of color tones and sufficient dyeing power. When using a hair dye containing an organic metal salt (2), it is usually necessary to pre-treat the hair with an alkaline solution containing a reducing agent, which causes significant damage to the hair and scalp. Furthermore, hair dyes containing the dye (3) are easy to dye and can be used to dye hair in various tones, but on the other hand, the dyeing properties are poor and the dye comes off when hair is washed. moreover
Hair dyes containing oxidation dyes (4) are currently the most commonly used, and although they have the advantage of providing a variety of color tones and sufficient dyeing properties, they are also susceptible to skin disorders, toxicity to the human body, and allergies. It has drawbacks such as gender, so it cannot be said to be a hair dye that can be applied to everyone. The purpose of the present invention is to provide a hair dye that eliminates the disadvantages of these conventional hair dyes, can be applied to everyone, and eliminates the adverse effects on the human body such as skin disorders caused by hair dyeing with easy operation. do. It is generally known that triphenylmethane dyes, azo dyes, quinoline dyes, xanthene dyes, indigoid dyes, and anthraquinone dyes, which do not cause skin damage, toxicity to the human body, or allergy, can be used in hair dyes. However, depending on the type or amount of the organic solvent, it may reduce the wettability, gloss, smoothness (ease of combing), and level dyeing properties of the hair after dyeing. In the present invention, by selecting a specific hair dyeing auxiliary agent, blending it with the above dye, and adjusting the PH value within a certain range, hair can be easily dyed to a desired color tone, while minimizing the effects on the human body such as skin disorders. This product was developed based on the knowledge that a one-component hair dye with good finish and no harmful effects could be obtained. That is, the present invention contains 5 to 25% of levulinic acid, and among triphenylmethane dyes, azo dyes, acridine dyes, azine dyes, stilbene dyes, oxazine dyes, thiazole dyes, quinoline dyes, xanthene dyes, indigoid dyes, and anthraquinone dyes. , by blending one or more types of dyes and adjusting the PH value.
The gist of this product is a hair dye that has been adjusted to a concentration of 1.5 to 4.5. The present invention will be explained in more detail below. In the hair dye of the present invention, the dyes used are the following among the dyes specified in the "Ministerial Ordinance Specifying Tar Colors That Can Be Used in Pharmaceuticals, etc." announced in August 1960. Applicable. Red No. 2 < 1 (4-sulfo-1-naphthylazo)
-2-naphthol-3,6-disulfonic acid trisodium salt>, Red No. 102<1-(4-sulfo-1-naphthylazo)-2-naphthol-6,8
-Trisodium salt of disulfonic acid>, Yellow No. 4<3-carboxy-5-hydroxy-1-para-
Trisodium salt of sulfophenyl-4-para-sulfophenyl azopyrazole>, Yellow No. 5<1
-para-sulfophenylazo-2-naphthol-
Disodium salt of 6-sulfonic acid>, Red No. 201<4-(ortho-sulfo-para-tolylazo)-
Calcium salt of 3-hydroxy-2-naphthoic acid>, Red No. 203 <Monosodium salt of 1-(4-chloro-ortho-sulfo-5-tolylazo)-2-naphthol>, Red No. 204 <1-(4 -Barium salt of -chloro-ortho-sulfo-5-tolylazo)-2-naphthol>, Red No. 205<2-(2-
Hydroxy-1-naphthylazo)-1-naphthalenesulfonic acid monosodium salt>, Red No. 206<2-(2-hydroxy-1-naphthylazo)-
Calcium salt of 1-naphthalenesulfonic acid>, Red No. 207 <Barium salt of 2-(2-hydroxy-1-naphthylazo)-1-naphthalenesulfonic acid>, Red No. 208 <2-(2-hydroxy-1-naphthylazo) ) - Strontium salt of 1-naphthalene sulfonic acid>, Red No. 219 <3-Hydroxy-
Calcium salt of 4-phenylazo-2-naphthoic acid>, Red No. 220 <Calcium salt of 4-(1-sulfo-2-naphthylazo)-3-hydroxy-2-naphthoic acid>, Red No. 221 <1-(ortho -Nitro-para-tolylazo)-2-naphthol>,
Red No. 227 <8-amino-2-phenylazo-1
- Disodium salt of naphthol-3,6-disulfonic acid>, Red No. 229<ortho-[para-(2.
2′-dihydroxy-diethylamino)-phenylazo]-benzoic acid>, Daidai No. 205 <monosodium salt of 1-para-sulfophenylazo-2-naphthol>, and No. 201 <4-para-sulfophenyl Azo-2-(2,4-xylylazo)
-1,3-Resorcin monosodium salt>, Red No. 404<1-(4-nitro-2-tolylazo)
-2-hydroxy-3-naphthoic acid anilide>,
Red No. 405 <1-(3-chloro-6-sulfo-4
-tolylazo)-2-hydroxy-3-naphthoic acid calcium salt>, Red No. 502 <Disodium salt of 1-pseudocumylazo-2-naphthol-3,6-disulfonic acid>, Red No. 503 <1 -Disodium salt of xylylazo-2-naphthol-3,6-disulfonic acid>, Red No. 504<2-(5-
Disodium salt of sulfo-2,4-xylylazo)-1-naphthol-4-sulfonic acid>, red
No. 506 <monosodium salt of 4-(2-hydroxy-1-naphthylazo)-1-naphthalenesulfonic acid>, orange No. 402 <monosodium salt of 4-para-sulfophenylazo-1-naphthol>, yellow No. 402 <sodium salt of 1(4-chloro-2-sulfophenyl)-3-methyl-4-[para-(para-tolylsulfonoxy)-phenylazo]-5-pyrazolone>, yellow No. 406 <4-meta ―
Monosodium salt of sulfophenylazo-diphenylamine>, yellow No. 407<5-hydroxy-3
-Methyl-4-phenylazo-1-para-sulfophenylpyrazole>, Red No. 213<9-ortho-carboxyphenyl-6-diethylamino-3
3-ethoacetate of -ethylimino-3-isoxanthene>, Red No. 214 <3-ethoacetate of 9-ortho-carboxyphenyl-6-diethylamino-3-ethylimino-3-isoxanthene>, Red No. 215 <9 -Ortho-carboxyphenyl-6-diethylamino-3-ethylimino-
3-ethostearate of 3-isoxanthene>,
Red No. 3 <9-ortho-carboxyphenyl-6
-Hydroxy-2,4,5,7-tetraiodo-
Disodium salt of 3-isoxanthone>, red
No. 103 (1) <9-ortho-carboxyphenyl-
Disodium salt of 6-hydroxy-2,4,5,7-tetrabromo-3-isoxanthone>, red
No. 104 (1) <Dinalium salt of 9-(3,4,5,6-tetrachloro-ortho-carboxyphenyl)-6-hydroxy-2,4,5,7-tetrabromo-3-isoxanthone>, Red No. 104 (2)＜
9-(3,4,5,6-tetrachlor-ortho-
carboxyphenyl)-6-hydroxy-2.
Disodium salt of 4,5,7-tetrabromo-3-isoxanthone>, Red No. 105 (1)<9-(3,
4,5,6-tetrachloro-ortho-camboxyphenyl)-6-hydroxy-2,4,5,7-
Dinatraum salt of tetraiodo-3-isoxanthone>, Red No. 105 (2)<9-(3,4,5,6
-tetrachlor-ortho-carboxyphenyl)
-Dipotassium salt of 6-hydroxy-2,4,5,7-tetraiodo-3-isoxanthone>, red
No. 106 <monosodium salt of 9-(4'sulfo-2'-sulfonium phenyl)-6-diethylamino-3-(N N-diethylimino)-3-isoxanthene>, green No. 2 <4-{ [4-(N-ethyl-meth-sulfobenzylamino)-phenyl]
-(4-sulfoniumphenyl)methylene}-
[1-(N-ethyl-N-meta-sulfobenzyl)
-Δ ^2.5 -cyclohexadienimine] disodium salt>, Green No. 3<4-{[4-(N-ethyl-meta-sulfobenzylamino)-phenyl]-
(4-hydroxy-2-sulfonium phenyl)
-methylene}-[1-(N-ethyl-N-meth-
disodium salt of sulfobenzyl)-Δ ^2.5 -cyclohexadienimine>, purple No. 1<4-
{[4-(N-ethyl-meth-sulfobenzylamino)-phenyl]-[4-(N-ethyl-meth-
Monosodium salt of sulfoniumbenzylamino)-phenyl]-methylene}-(N.N dimethyl-Δ ^2.5 -cyclohexadienimine)>, red
No. 223 <2,4,5,7-tetrabrome-3,6
-Fluoranediol>, Daidai-iro No. 201<4,
5-dibrome-3,6-fluoranediol>,
Daidai-iro No. 202 (1)<4,5-dibrome-9-
Ortho-carboxyphenyl-6-hydroxy-
Disodium salt of 3-isoxanthone>, Dai-iro 202 (2) <Dipotassium salt of 4,5-dibromo-9-ortho-carboxyphenyl-6-hydroxy-3-isoxanthone>, Dai-iro 206
No. <4,5-diiodo-3,6-fluoranediol>, Orange No. 207 <disodium salt of 9-ortho-carboxyphenyl-6-hydroxy-4-5-diiodo-3-isoxanthone>, Yellow No. 201 <3,6-fluoranediol>, yellow
No. 202 (1) <9-ortho-carboxyphenyl-
Disodium salt of 6-hydroxy-3-isoxanthone>, yellow No. 202 (2) <dipotassium salt of 9-ortho-carboxyphenyl-6-hydroxy-3-isoxanthone>, blue No. 202 <4 {[ 4-
(N-ethyl-benzylamino)-phenyl-
(5-hydroxy-4-sulfo-2-sulfoniumphenyl)-methylene}-(N-ethyl-N-
monosodium salt of benzyl-Δ ^2.5 -cyclohexadienimine>, blue No. 203<4-{[4-
(N-ethyl-benzylamino)-phenyl]-
(5-hydroxy-4-sulfo-2-sulfoniumphenyl)-methylene}-(N-ethyl-N-
Calcium salt of benzyl-Δ ^2.5 -dichlorohexadienimine)>, blue No. 205<4{[4-(N-ethyl-methasulfobenzylamino)-phenyl-
(2-sulfoniumphenyl)-methylene-[1
-(N-meta-sulfobenzyl)-methylene-
[1-(N-meta-sulfobenzyl)-Δ ^2.5 -cyclohexadienimine diammonium salt>,
Blue No. 2 <disodium salt of 5,5'-indigotine disulfonic acid>, Blue No. 203 <disodium salt of 2-(2-quinoline)-1,3-indanedione disulfonic acid>, Blue No. 201 <indigotine >,
Green No. 201 <Disodium salt of 1,4-bis(ortho-sulfo-paratoluino)-anthraquinone> The levulinic acid used in the present invention can be used as a dye by blending it in a range of 5 to 25% based on the total ingredients of the hair dye. It has the effect of promoting the dyeability of dyed hair, and also imparts appropriate wettability, suppleness, and gloss to the hair after dyeing, and imparts smoothness, that is, ease of combing. If the blending ratio is smaller or larger than the above range, it not only results in uneven dyeing or insufficient dyeing, but also results in loss of suppleness and smoothness in the finished hair. Levulinic acid exhibits particularly excellent hair dyeing effects when used in combination with other known organic solvents. For example, a hair dye base consisting of a combination of 5% benzyl alcohol and levulinic acid at various concentrations was mixed with Red No. 2 < trisodium 1-(4-sulfo-1-naphthylazo)-2-naphthol-3,6 disulfonic acid. Table 1 shows the results of dyeing white hair and human hair with a dye solution in which 0.2% salt> was dissolved and the pH was adjusted to 2.5 with phosphoric acid. The dyeing property was evaluated by uniformly applying the above dyeing solution to the entire test hair, leaving it for 30 minutes at room temperature, washing with warm water, shampoo and water, and drying with a hair dryer. As a comparative example, the results of hair dyeing in the same manner as above except that isopropanol was used instead of levulinic acid are also shown. A Evaluation of hair dyeing effect Dyeing property 〇 Dyeing property is good and the hair is dyed evenly. △ Slightly poor dyeability. × Uneven dyeing, poor dyeability. B Hair finish: Flexible and easy to comb. △ Somewhat pliability and poor combability. × Lack of flexibility and poor combability. C Color tone ◎, 〇, △, × ◎ Dye deep red. 〇 Dyed red 〃. △ Red 〃 . × Pink 〃.

【table】

【table】

[Table] Table 2 shows the results of a similar test conducted on ethylene carbonate, which is known as a dyeing agent. As described above, although ethylene carbonate has excellent dyeing properties, the effect cannot be obtained unless it is added in a large amount, and as a result, the finish of the hair is poor. In the hair dye of the present invention, it is necessary to adjust the PH value from 1.5 to 4.5. If it is outside this range, that is, if it is less than 1.5, the finishing effect of levulinic acid will be weakened, and if it is greater than 4.5, the dyeability will be weakened. As the PH adjuster used in the hair dye of the present invention, an inorganic or organic acid showing mild acidity such as phosphoric acid or citric acid is used. In addition, the hair dye of the present invention may contain a thickening agent such as hydroxyethyl cellulose, a fragrance agent such as citral, an anti-gelling agent such as glycerin, etc., in consideration of usability during treatment. preferable. As described above, the present invention is a hair dye characterized by containing levulinic acid as a hair dyeing auxiliary agent,
It has excellent dyeing properties and leaves hair supple after application.
It has the advantage of being shiny, easy to comb, and does not cause any skin irritation or allergies, so it can be said to be a hair dye that is suitable for everyone. Example 1 Hair dye for black coloring Black No. 401 <8-amino-7-paranitrophenylazo-2-phenylazo-1-naphthol-3,6 disulfonic acid disodium salt> 0.5% Orange No. 201 <4- parasulfophenylazo
(2,4-xylylazo)-1,3-resorcin monosodium salt > 0.1% Red No. 2 <1-(4-sulfo-1-naphthylazo)-2-naphthol-3,6-disulfonic acid trisodium salt > 0.1 % Benzyl alcohol 5.0% Levulinic acid 10.0% Phosphoric acid 1.0% Hydroxyethyl cellulose 1.0% Purified water 82.3% Add benzyl alcohol, levulinic acid, and hydroxyethyl cellulose to purified water and dissolve with stirring.
Black No. 401, Orange No. 201, and Red No. 2 were added to this, and phosphoric acid was added to adjust the pH to 3.0 to obtain a black hair dye. Example 2 Brown hair dye black No. 401 <8-amino-7-paranitrophenylazo-2-phenylazo-1-naphthrol-3,6-disulfonic acid disodium salt>
0.3% Red No. 203 <1-(4-chloro-orthosulfo-5-triazo-2-naphthol monosodium salt>) 0.5% Yellow No. 5 <1-para-sulfophenylazo-2
-Naphthol-6-sulfonic acid disodium salt > 0.15% Benzyl alcohol 5.0% Levulinic acid 15.0% Citric acid 1.5% Hydroxyethyl cellulose 1.0% Purified water 76.55% Add benzyl alcohol, levulinic acid, and hydroxyethyl cellulose to purified water and stir. dissolve,
Black No. 401, Red No. 203, and Yellow No. 5 were added to this, and citric acid was added to adjust the pH to 2.5 to obtain a brown hair dye.

Claims (1)

[Claims] 1 Containing 5 to 25% levulinic acid, among triphenylmethane dyes, azo dyes, quinoline dyes, thiazole dyes, xanthine dyes, indigoid dyes, acridine dyes, azine dyes, stilbene dyes, oxazine dyes, thiazole dyes and anthraquinone dyes. A hair dye characterized by further blending one or more types of dyes and adjusting the pH value from 1.5 to 4.5.