HK1045808A1

HK1045808A1 - Acidic hairdye composition

Info

Publication number: HK1045808A1
Application number: HK02107046.7A
Authority: HK
Inventors: 田村彰一; 中村范平
Original assignee: 日本索希亚株式会社
Priority date: 2000-09-22
Filing date: 2002-09-26
Publication date: 2002-12-13
Also published as: JP2002104942A; JP3619988B2; KR20020023121A; SG89421A1; TWI282289B; MY149838A; HK1045808B; CN1346632A; CN100528124C; KR100786903B1

Abstract

AN ACIDIC HAIRDYE COMPOSITION COMPRISING 0.01 TO 1% BY WEIGHT OF AT LEAST ONE ACIDIC DYE, 0.1 TO 10% BY WEIGHT OF AN ACID AS A pH ADJUSTING AGENT, 1 TO 2% OF AN AROMATIC ALCOHOL AS A PENETRANT, 1 TO 20% BY WEIGHT OF A LOWER ALCOHOL AS A SOLVENT, 0.01 TO 5% BY WEIGHT OF A POLYMER COMPOUND AS A THICKENER, BASED ON THE TOTAL WEIGHT OF THE COMPOSITION AND THE BALANCE WATER. THE ACIDIC HAIRDYE COMPOSITION IS STABLE THOUGH IT IS STRONGLY ACIDIC HAS HIGH FLUIDITY, EXHIBITS EXCELLENT USE FEELING, CAUSES SUBSTANTIALLY NO COLOR MIGRATION SUCH AS ATTACHMENT OF THE DYE TO THE SKIN OR CLOTHES AFTER USE, NEEDS NO WASHING OUT, HIDES WHITE OR GRAY HAIR BY A SINGLE TREATMENT THEREWITH AND DYES WHITE OR GRAY HAIR BY 4 OR 5 TREATMENTS THEREWITH TO MAKE THE WHITE OR GRAY HAIR INCONSPICUOUS.

Description

Acid hair dye composition

Technical Field

The present invention relates to an acid hair dye which is excellent in dyeing properties and does not cause color shift to the skin or clothes.

Background

Many acid hair dyes have been proposed, but substances having a low pigment concentration and a low penetrant or acid concentration are mainly used for hair conditioners and the like, and although color transfer to the skin or clothes is small, the hair dyes have very poor hair-dyeing ability to hide or make white hair inconspicuous, and thus are not effective as hair dyes. On the other hand, if a substance having a high pigment concentration and a high penetrant or acid concentration is used as a hair dye, the degree of skin contamination is high, the migration of the hair dye to the skin or clothes after use is serious, and the hair dye can be used only in places having special facilities such as a room, and the hair dye is used at ordinary home with special care so as not to contaminate the skin or clothes, and the remaining hair dye must be washed away after use.

Problems to be solved by the invention

The invention provides an acid hair dye composition which is stable in a strong acid region (pH1.5-4.0), has good fluidity and excellent feeling in use, does not cause color migration to skin, clothes and the like after use, can make white hair inconspicuous only by using a thickening means for 1 time, and can make white hair completely invisible by using the thickening means for 4-5 times without rinsing.

Means for solving the problems

The present inventors have made intensive studies to solve the above problems, and as a result, have found that an acid hair dye composition having a high effect can be obtained by blending a pigment, an acid, an aromatic alcohol, a lower alcohol, a thickener and water as essential components in a well-balanced manner, so that white hair can be made unnoticeable after 1 use, can be made completely invisible after 4 to 5 uses, and does not cause color migration to skin, clothes and the like after use, and does not require rinsing.

The acid hair dye is characterized by being prepared by mixing 0.01-1% of 1 or more than 2 acid dyes, 0.1-10% of acid as a pH regulator, 1-20% of aromatic alcohol as a penetrating agent, 1-20% of lower alcohol as a solvent and 0.01-5% of a polymer compound as a thickening agent.

The acid hair dye composition of the present invention may contain, in addition to the above-mentioned main components, additives commonly used in the art, such as an ultraviolet absorber, an antioxidant, and a stabilizer, as necessary, and the balance is water.

Modes for carrying out the invention

As the acid dye used in the present invention, a conventional dye commonly used in an acid hair dye or an acid hair dye can be used. Preferred examples of the pyrogen-based coloring matter include red No. 2, red No. 102, red No. 106, red No. 213, red No. 215, red No. 227, red No. 401, red No. 504, yellow No. 4, yellow No. 5, yellow, No. 203, yellow No. 205, green No. 3, green No. 204, green No. 205, blue No. 1, blue No. 203, blue No. 403, black No. 401, purple No. 401, orange No. 205, and brown No. 201. These pigments may be used alone or in combination of 1 or 2 or more. The acid dye is preferably 0.01 to 1 wt%, more preferably 0.05 to 0.5 wt%, based on the total amount of the hair dye. If the amount is 0.01 wt% or less, the desired color cannot be achieved even after dyeing 10 times or more, and if the amount is 1 wt% or more, it is difficult to dye the desired color.

The acid used as the pH adjuster may be any of inorganic acids and organic acids, and is preferably an organic acid. Examples of the organic acid include organic acids such as citric acid, succinic acid, tartaric acid, lactic acid, malic acid, fumaric acid, maleic acid, and glycolic acid, and inorganic acids such as hydrochloric acid, sulfuric acid, phosphoric acid, and nitric acid. These acids and sodium, potassium or ammonium salts of these acids may be used in combination for imparting buffering ability.

The amount of the acid is selected so that the pH of the hair dye solution is 1.5 to 4.0, preferably 1.5 to 3.5, when the hair dye is used.

The aromatic alcohol as a penetrant should promote penetration of the dye into the hair, and should also impart smoothness, moisturized feel, and moisture to the hair after dyeing. For example, benzyl alcohol, phenethyl alcohol and the like can be used, and benzyl alcohol is preferred.

As the lower alcohol as the solvent, those commonly used in hair styling agents can be used. Straight or branched chain alcohols having 1 to 4 carbon atoms such as methanol, ethanol, propanol, isopropanol, butanol, ethylene glycol, 1, 3, butanediol and the like can be used, and ethanol is preferably used. The amount of the lower alcohol is 1-20% of the total amount of the hair dye, although it varies depending on other components. If the content is 1% or less, the function as a solvent is reduced, and turbidity and separation of the liquid are observed, whereas if the content is 20% or more, the workability in dyeing is lowered.

The hair dye of the present invention uses a thickener to prevent unnecessary dripping of the hair dye solution during use, and thus has good operability. As the polymer compound of the thickener, a natural or synthetic polymer compound can be used. Examples of the polymer include natural polymers such as gum arabic, guaiac, carageenan, sodium alginate, xanthan gum, methylcellulose, CMC, and cationized starch, synthetic polymers such as poly (meth) acrylic acid, poly (meth) acrylate, and polyvinyl alcohol, and higher fatty acid esters such as polyethylene glycol higher fatty acid esters. Xanthan gum and the like are preferred.

The hair dye composition of the present invention may contain, if necessary, a wetting agent, an antidandruff agent, an antioxidant, an ultraviolet absorber, a perfume, etc., which are used in this field.

The hair dye can not achieve the desired color by dyeing for 1 time, and deeply dyed hair can be obtained by dyeing for more than 3-5 times at certain intervals. Therefore, the hair dye of the present invention does not damage hair even if the hair is dyed several times, and has no adverse effect on health.

In the hair dyeing, after the 1 st hair dyeing, the next hair dyeing is performed after 30 minutes or more, preferably 1 to 7 days (1 week) or more, for example, 3 weeks apart. The hair can be washed before the subsequent dyeing.

Examples

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

Preparation examples

The thickener used was xanthan gum, the pH adjuster used was glycolic acid, the aromatic alcohol used was benzyl alcohol, the lower alcohol used was ethanol, and the acid dye used was an acid pigment obtained by mixing the dyes shown in Table 1 below.

TABLE 1 acid dye mixing ratio (parts by weight)

	Brown color line of tea	Blue series	Black system
	Brown color line of tea	Blue series	Black system	Black No. 401	1 part of	25 portions of	14 portions of
Purple No. 401	1 part of	15 portions of	14 portions of	Black No. 401	1 part of	25 portions of	14 portions of
Purple No. 401	1 part of	15 portions of	14 portions of	Orange No. 205	3 portions of	10 portions of	22 portions of

The above components were mixed in the proportions shown in tables 2 and 3, and purified water was added so that the total amount was 100, wherein% represents weight%.

The hair dyeing property tests of examples 1 and 2 were carried out for each of the hair dyes obtained.

Example 1

The example 1 and comparative examples 1 to 3 having the compositions shown in the questionnaire 2 were conducted for hair dyeing property and handling property. As the mixed acid pigment, black pigments described in table 1 were used.

Comparative example 1 is an example of a composition rich in xanthan gum, comparative example 2 is an example of a composition rich in benzyl alcohol, and comparative example 3 is an example of a composition rich in ethanol.

The compositions of comparative examples 2 and 3 had poor compatibility with themselves and poor hair dyeing properties. The hair dyeing properties of example 1 and comparative examples 1 to 3 are described below.

TABLE 2

1. Property of dyeing hair

^＊1: after 10 minutes of application, the coating was dried, and even if the coating was wiped off, the hands were not stained, white hair was uniformly blackened, and the coating had no sticky feeling, smooth touch, and excellent.

^＊2: the coating had high viscosity, was difficult to apply, and the white hair was blackened, but was not dried after 30 minutes, and was again contaminated.

^＊3: the liquid is separated into 2 layers, and after the liquid is coated on the white hair after oscillation and mixing, the liquid is easy to flow, the use is inconvenient, the white hair becomes black after coating, but the white hair is still in a wet state after 30 minutes, and the pollution is generated.

^＊4: after application, the white hair turned black and was no longer noticeable, but after 30 minutes, the hair had a sticky feel and the pigments reattached, and after drying, the pigments were still reattached.

2. Staining after shampooing

1) After shampooing with a commercially available shampoo, the white hair was uniformly colored black without discoloration.

2) After shampooing, a part of the white hair becomes pale black due to partial fading caused by shampooing, and the white hair is more conspicuous as a whole.

3) After shampooing, white hair portions were observed, and some were stained black, while unstained portions were visible, and white hair was noticeable.

4) After shampooing, the white hair portion was observed, and since the shampooing was almost completely faded, the white hair was conspicuous and no staining by pigments was observed.

(1) Applicability: the liquid of example 1 was put in a comb with a white male as a subject, and the left head was entirely coated. The same amount of the liquid of comparative example 1 was applied to the right head portion.

As a result, the entire liquid of example 1 was easily spread and white hair could be uniformly hidden, whereas in the case of comparative example 1, the entire liquid was hardly spread uniformly and white hair was not easily hidden as a whole.

(2) Re-adhesion: immediately after dyeing, each coated part of example 1 and comparative example 1 was touched with the palm, and the palm was stained with the dye, but example 1 was slightly lighter than comparative example 1.

After 10 minutes of application, both the applied parts of the palm were rubbed, and the palm was sticky in comparative example 1, and the dye adhered to the palm was considerable, and in example 1, the palm was not stained in a completely dried state, and the white cloth was not stained even when the white cloth was rubbed hard.

(3) Hair staining property: after that, the hair was washed with a commercially available shampoo and dried, and then the dyed state of both sides of the head was observed, and as a result, the white hair of the use part of comparative example 1 was hardly changed, and the use part of example 1 had almost no feeling of white hair, and the white hair was dyed.

After that, the hair was finished with a commercial hair oil, and after washing the hair 1 time for 2 days and 3 times, the dyed part did not fade, and the white hair part using example 1 was less noticeable than the part using comparative example 1.

The acid hair dye of the present invention is dried in a short time of about 10 minutes after dyeing, the dye does not contaminate hands or clothes, can be directly maintained in a hair-setting state, the white hair after hair washing does not fade, a sufficient hair dyeing effect can be obtained even if hair washing is repeated, there is no inconvenience that the hair is left to stand for 30 to 40 minutes and then washed clean in the case of using the acid hair dye in general, and the hair dyeing effect can be obtained by applying the present invention and setting the hair style in this state.

Example 2

The dyeability test was carried out for example 2 and comparative example 4 having the compositions shown in Table 3, and the dyeability test was carried out for comparative examples 5 and 6. As the mixed acid pigment, the tea brown pigments described in table 1 were used.

Comparative example 4 is an example with a large amount of water. Comparative example 5 is an example with a large amount of benzyl alcohol and a small amount of ethanol. Comparative example 6 is an example with less ethanol and more water. These solutions are unstable and result in poor hair dyeing properties.

TABLE 3

1. Property of dyeing hair

^＊5: the coating was dried after 10 minutes, and the hand was not stained even by wiping, and the white hair was uniformly stained dark brown, had no sticky feeling, smooth touch, and was very good in that the white hair was not conspicuous.

^＊6: after coating, the white hair part becomes dark brown, the white hair is not obvious, but the white hair is not dried after 30 minutes, the pigment is attached again, and the pigment is attached again after the white hair is dried.

^＊7: the liquid is separated into 2 layers, and the coating is carried out after shaking and mixing, but the shaking and mixing are repeated for a plurality of times to make white hair inconspicuous, so the coating times are more and very inconvenient. After 30 minutes, the mixture was still wet and contaminated.

^＊8: the liquid is separated, and the applied white hair is made into teaBrown, no longer noticeable, but after 30 minutes, the color was sticky and reattached, and after drying, the color was reattached.

2. Staining after shampooing

5) After shampooing with a commercially available shampoo, the white hair was uniformly dyed dark brown without discoloration.

6) After shampooing, white hair is dyed into light dark brown, and the white hair is more obvious when viewed as a whole due to fading caused by shampooing.

7) After shampooing, the white hair portions were observed, and the portions were stained dark brown, showing uneven staining.

8) After shampooing, the white hair portion was observed, and since the shampooing was almost completely faded, the white hair was conspicuous and no staining by pigments was observed.

(1) Applicability: the hair dyes of example 2 and comparative example 4 were applied to the left and right sides, respectively, in the same manner as in example 1, except that a female aged 0 years old with mixed white hair was used as a test subject.

As a result, the entire liquid of example 2 was easily developed and white hair could be uniformly hidden, while in the case of comparative example 4, the separation of benzyl alcohol was observed, and the entire liquid was hardly developed uniformly and white hair was not easily hidden as a whole.

(2) Re-adhesion: immediately after dyeing, each coated part of example 2 and comparative example 4 was touched with the palm, which was stained with the dye, but example 2 was slightly lighter than comparative example 4.

After 10 minutes of application, the two applied parts of the palm were rubbed, and the comparative example had a sticky feeling, and the amount of the dye attached to the palm was considerable, and in the examples, the palm was not contaminated in a completely dried state, and the white cloth was not contaminated even when the white cloth was vigorously rubbed.

(3) Hair staining property: after that, the hair was washed with a commercially available shampoo, and after drying, the state of hair dyed on both sides of the head was observed, and as a result, white hair was not observed locally in the use part of comparative example 4, but white hair was conspicuous as a whole. The white hair was hardly seen in the portion used in example 1, and the white hair had been dyed.

As with the results of example 1, the acid hair dye of the present invention of example 2 was dried in a short time of about 10 minutes after dyeing, and the hair dye could be maintained in the hair-setting state without staining the palm and clothes, and the white hair after washing could not be discolored, and sufficient dyeing effect could be obtained even by repeating washing,

(4) re-dyeing property: in the case of the female who has been dyed with the above-mentioned hair, the hair is repeatedly dyed every 3 weeks, and the former dyed part is not distinguished from the latter dyed part, and the dyeing is uniform, and a darker color can be obtained after the hair is dyed again, and the hair is not damaged, and is in a hair state in which the touch is smooth and the hair is easily styled.

From the results of the above examples and comparative examples, it is apparent that the hair dye composition of the present invention has a composition ratio of benzyl alcohol to ethanol of 1: 0.25 to 4.0, preferably 1: 1.25 to 1.5, and a ratio of a mixture of benzyl alcohol and ethanol to water of 1: 2.3 to 41.0, preferably 1: 2.9 to 3.4, and that separation of benzyl alcohol does not occur in this range, and that the adhesion of the dye and the feeling of use during application are good.

From the results, the proportions of the components of the present invention are summarized as follows.

	Composition scope of the invention	Preferred ranges
	Composition scope of the invention	Preferred ranges	Acid pigment	0.01-1％	0.05-0.5％
Acid(s)	0.1-10％	1.0-5.0％	Acid pigment	0.01-1％	0.05-0.5％
Acid(s)	0.1-10％	1.0-5.0％	Aromatic alcohols	1.0-20％	5.0-15.0％
Lower alcohols	1.0-20％	10.0-15.0％	Aromatic alcohols	1.0-20％	5.0-15.0％
Lower alcohols	1.0-20％	10.0-15.0％	Polymer compound	0.01-5％	0.3-1.0％
Refined water	44.0-97.88％	59.5-74.45％	Polymer compound	0.01-5％	0.3-1.0％

The acid hair dye composition of the present invention is easy to use because it is one-pack, has moderate viscosity and good drying properties, and does not cause unnecessary contamination of clothes during use. The hair dye composition of the present invention is not limited to black or dark brown, and any color can be used, and the composition is suitable for not only the white hair dyeing of the elderly, but also the need for the popular hair color of young people.

Claims

1. An acid hair dye composition without need of washing hair after hair dyeing is prepared by mixing 0.05-0.5% of one or more acid dyes, 1-5% of citric acid or glycolic acid as pH regulator, 10-15% of benzyl alcohol, 10-15% of ethanol, 0.3-1% of xanthan gum, and water as the rest; wherein the content ratio of benzyl alcohol/ethanol is 1: 1.25-1.5, the total amount of benzyl alcohol and ethanol is 20-30%, and the acid is added to make pH of the hair dye composition be 1.5-3.5.

2. The acid hair dye composition according to claim 1, wherein the content ratio of benzyl alcohol/ethyl alcohol is 1: 1.25-1.5, the total amount thereof is 20-30% in the composition, the amount ratio of xanthan gum/benzyl alcohol is 0.03-0.1, the amount of xanthan gum-containing is 0.3-1.0%, the amount of citric acid or glycolic acid-containing is 1-5%, and the amount of acid-containing dye is 0.05-0.5%.

3. The acid hair dye composition according to claim 1 or 2, which comprises 0.1% of an acid dye, 2.0% of glycolic acid, 10.0% of benzyl alcohol, 12.5% of ethanol, 0.5% of xanthan gum, and the balance of purified water.

4. The acid hair dye composition according to claim 1 or 2, which comprises 0.2% of an acid dye, 2.0% of glycolic acid, 10.0% of benzyl alcohol, 15.0% of ethanol, 0.3% of xanthan gum, and the balance of purified water.