DE19653496A1 - Semi-permanent acid hair dye for aerosol application - Google Patents

Abstract

A semi-permanent acid hair dye composition for aerosol dispensing, comprising an acid hair dye stock solution and a propellant packed in an aerosol container and formulated such that in use the composition is dispensed in the form of a foam having a foam density of at least 0.1 g/ml at 25 deg C under 1 atmosphere within 10 seconds of spraying.

Description

This invention relates to a semi-permanent acidic Hair dye composition for an aerosol. More accurate expressed it concerns a semi-permanent, acidic Hair dye composition for an aerosol that is related to the Coloring properties is excellent, no sinking or Dripping down when coloring shows the (scalp) skin only a little soiled, etc. and can be easily applied.

Semipermanent acidic hair coloring, through which the hair through the permeating of an acidic dye is colored in it, have been widely used under trademarks of e.g. B. Hair Manicure applied. Because these semi-permanent acidic Hair dyes permeation accelerators (e.g. benzyl alcohol, etc.) together with acid dyes, they are excellent in permeation into the hair and regarding the coloring properties. However, they do Disadvantage that they also heavily pollute the skin. Have conventional semi permanent acidic hair dyes still a relatively low viscosity, which is a another disadvantage with regard to sinking or draining of semi-permanent acidic hair dye when dyeing the skin or forehead. As a result occurs the problem that the skin or forehead with the semi-permanent acidic hair dye can be contaminated and then difficult to clean.  

To avoid the problems mentioned above, suggested the viscosity of a semi-permanent acidic Hair dye by adding a thickener to it increase, so the sinking and dropping of the semi-permanent acidic hair dye on the forehead, skin, etc. prevent. However, in such a case, the sinking can and drops of the semi-permanent acidic hair dye can be prevented sufficiently and another occurs Problem on that due to the increased viscosity Application of the semi-permanent acid hair dye deteriorates, causing a non-uniform coloring is caused.

Accordingly, methods for improving the Application of a semi-permanent acidic Hair dye composition suggested on the hair while any contamination of the skin (e.g. scalp, forehead, etc.) can be prevented, including mixing the semi permanent acidic hair dye composition along with a foaming agent and a blowing agent, packing the obtained composition in an aerosol container, Spraying the composition from the aerosol container in a foam condition with good shape retention and then applying the foam from the semi-permanent acidic hair dye on the hair [JP-A-61-210023, JP-A-7- 33629, etc .; (the term "JP-A" as used herein means an unchecked, published Japanese Patent application ")]. In such a case, too proposed to use an aerosol container with a comb-like applicator is provided which is directly connected in it so as to apply the application process facilitate (JP-A-U-6-38660; the expression "JP-A-U" as he used herein means an untested, published Japanese utility model application).  

With such a foamy, semi-permanent, acidic Hair dye composition, the sinking and dripping on the scalp and forehead are completely inhibited. However, the foam has a large specific volume due to its good shape retention. If the semi permanent acidic hair dye composition on the hair as a result, the bathing (or rinsing) ratio of the composition to the hair completely, which causes the problem that the Coloring properties compared to conventional ones are not foamy, semi-permanent, acidic hair dye Compositions are seriously deteriorated.

As described above, the semi-permanent are acidic Aerosol type hair dye compositions currently are available, pleasant in terms of application and pollute the skin (scalp, etc.) little, but they are still insufficient in terms of coloring properties.

An object of this invention is to achieve those mentioned above To solve problems of the prior art. Because the goal This invention resides in the coloring properties of a semi-permanent, acidic hair dye composition from Aerosol type to improve the skin, etc. not soiling and have good application performance.

These inventors have found that when a semi-permanent, acidic hair dye composition that results from a semi-permanent, acidic hair dye basic solution composed of an acid dye and a Propellant, in the state of a foam of one Aerosol container is sprayed, the spray ratio of the semi-permanent, acidic hair dye base solution to the hair can be increased and the coloring properties thereof  can be significantly improved without the Order performance is worsened by the Composition is defoamed, so the foam density within a certain period of spraying too increase, thereby accomplishing this invention.

Accordingly, this invention provides a semi-permanent acid Hair dye composition available for an aerosol a semi-permanent, acidic hair dye basic solution, which contains an acidic dye and a blowing agent, composed, which is packed in an aerosol container and in sprayed out the condition of a foam when in use is characterized in that the composition for the Obtain a foam density of at least 0.1 g / ml at 25 ° C Defoamed under 1 atm within 10 s after spraying becomes.

The semi-permanent, acidic hair dye composition for one Aerosol according to this invention has a tendency that its Foam density is not increased until it is in the foam state of sprayed out of the container and then defoamed. Consequently can the spray ratio of semi-permanent, acidic Hair dye stock solution to the hair increases and the Coloring properties can be improved considerably. In this In this case, the composition should be defoamed in such a way that a foam density of at least 0.1 g / ml, preferably 0.2 g / ml or more, at 25 ° C and 1 atm within 10 s after the Spraying is obtained. If the foam density is less than 0.1 g / ml 10 s after spraying is only a small one Bathing ratio of the semi-permanent, acidic hair dye Stock solution to the hair, and thus the Color properties deteriorated.

The application performance of the semi-permanent, acidic Hair dye composition for an aerosol according to this  Invention is not seriously deteriorated as it is up to remains frothy to some extent when in a Brush or picked up in the hands and on the hair is applied (generally within several Seconds after spraying).

In the following, the semi-permanent, acid hair coloring Stock solution containing the semi-permanent acidic according to the invention Hair dye composition is described.

The semi permanent acidic hair dye composition, which is used according to the invention comprises an acidic one Dye. To the permeation of the acidic dye in the Accelerate hair so as to improve the coloring properties improve, the stock solution still contains an acidic Component by which the working pH of the stock solution to a range of 2 to 5 (the working pH range of the acidic dye) is set, in addition to a Permeation accelerator.

If the semi-permanent, acidic hair dye stock solution is one excessively low viscosity (Brookfield viscometer, 30 ° C) has a foam can be difficult to form if the Composition is sprayed out of the aerosol container, and thus the application performance is deteriorated. If the Viscosity of which is excessive can, on the other hand Side the composition heavy in the state of a Foam are sprayed out of the aerosol container. Accordingly, the viscosity thereof is preferably in the range from 1,000 to 50,000 cs, more preferably from 2,000 to 40,000 cs. The viscosity can be adequately adjusted by adding e.g. B. Thickeners can be set as below is described.  

The acidic dye used in the invention is not particularly limited as long as he is one who is in Hair dye is commonly used. Examples of this include Red No. 2 (C.I. 16185), Red No. 3 (C.I. 45430), Red No. 102 (C.I. 16255), Red No. 104 (C.I. 45410), Red No. 105 (C.I. 45440), Red. No. 106 (C.I. 45100), Yellow No. 4 (C.I. 19140), Yellow No. 5 (C.I. 15985), Green No. 3 (C.I. 42053), Blue No. 1 (C.I. 42090), Blue No. 2 (C.I. 73015), Red No. 201 (C.I. 15850), Red No. 227 (C.I. 17200), Red No. 230 (C.I. 45380), Red No. 231 (C.I. 45410), Red No. 232 (C.I. 45440), Orange No. 205 (C.I. 15510), Orange No. 207 (C.I. 45425), Yellow No. 202 (C.I. 45350), Yellow No. 203 (C.I. 47005), Green No. 201 (C.I. 61570), Green No. 204 (C.I. 59040), Green No. 205 (C.I. 42095), Blue No. 202 (C.I. 42052), Blue No. 203 (C.I. 42052), Blue No. 205 (C.I. 42090), Brown No. 201 (C.I. 20170), Red No. 401 (C.I. 45190), Red No. 502 (C.I. 16155), Red No. 503 (C.I. 16150), Red No. 504 (C.I. 14700), Red No. 506 (C.I. 15620), Orange No. 402 (C.I. 14600), Yellow No. 402 (C.I. 18950), Yellow No. 403 (C.I. 10316), Yellow No. 406 (C.I. 13065), Yellow No. 407 (C.I. 18820), Green No. 401 (C.I. 10020), Green No. 402 (C.I. 42085), Purple No. 401 (C.I. 60730) and Black No. 401 (C.I. 20470).

The content of such an acid dye in the Stock solution is preferably in the range of 0.01 to 3% by weight, more preferably from 0.1 to 2% by weight.

Preferred examples of the permeation accelerator which to be used according to the invention include aromatic Alcohols represented by the formula (1) and N- Alkylpyrrolidones represented by the formula (2).

In the formula (1), R 1 represents a hydrogen atom, a Lower alkyl group (e.g. methyl) or a lower alkoxy Group (e.g. methoxy); Y represents an alkylene group e.g. B. Methylene), an alkenylene group (e.g. vinylene) or one Single bond; Z represents a hydrogen atom or a Hydroxyl group; and p and q each independently represent one integer from 0 to 5. In the formula (2), R² represents one Alkyl group (e.g. methyl, octyl).

Preferred examples of the more aromatic alcohols of the formula (1) include benzyl alcohol, cinnamon alcohol, phenethyl alcohol, p-anise alcohol, p-methylbenzyl alcohol, phenoxyethanol, Phenoxyisopropanol and 2-benzyloxyethanol. Preferred Examples of the N-alkylpyrrolidones of formula (2) include N- Methylpyrrolidone, N-ethylpyrrolidone and N-octylpyrrolidone.

If the content of such a permeation accelerator in the stock solution is excessively low, none can sufficient coloring performance can be achieved. If the salary of which is excessive, on the other hand, the Effects can not be further improved. Thus lies the  The content thereof is preferably in the range of 3 to 20% by weight and more preferably from 5 to 15% by weight.

Since the hair has an ionic buffering capacity, it is preferred to select a weak acid as the acid which is used according to the invention. Examples of weak acid include citric acid, glycolic acid, succinic acid, tartaric acid, Lactic acid, acetic acid, fumaric acid, malic acid, levulinic acid, Butyric acid, valeric acid, oxalic acid, maleic acid, Mandelic acid and phosphoric acid. In this case it is prefers that such a weak acid coexists with a salt thereof (e.g. sodium salt, potassium salt, ammonium salt) is used to thereby create a stock solution To give buffer capacity.

The stock solution comprises the acid in such an amount that an acid concentration, expressed as buffer capacity, of at least 0.01 g equivalent / l, is preferred 0.02 g equivalent / l or more is obtained.

As described above, it is preferred that the semi-permanent, acidic hair dyeing according to the invention Stock solution contains a viscosity control agent through which the viscosity of the stock solution to 1,000 to 50,000 (Brookfield viscometer, 30 ° C) is set so that Spraying the composition in the form of a foam and to enable defoaming immediately after spraying, to increase the foam density. As Viscosity control agents are preferred to be water soluble To use polymers. Examples of these include natural ones Gums (e.g. xanthan gum, guar gum) and modifications thereof, cellulose derivatives (e.g. hydroxyethyl cellulose, Methyl cellulose, carboxymethyl cellulose), alginic acid Derivative (e.g. sodium alginate, propylene glycol alginate) and synthetic polymers (e.g. polyvinyl alcohol,  Polyvinylpyrrolidone, polyethylene glycol). Under these It is particularly preferred materials, natural rubbers, Modifications thereof or cellulose derivative to use.

These water soluble polymers can either be used alone or used as a mixture of two or more of them. The content of it in the stock solution can be dependent the intended viscosity of the stock solution be appropriately determined.

In order to control the foam stability, it is preferred that the semi-permanent, acidic hair dye stock solution still one Contains foam stabilizer. As a foam stabilizer Preferred surfactant used. Examples of the surfactant include Polyoxyethylene alkyl ether, Polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene sec alkyl ether, alkyl glyceryl ether, Alkylpentaerythrylglyceryl ether, alkyl sulfates, Polyoxyethylene alkyl sulfates, alkyl sulfonates, polyethers modified silicones and alkyl phosphates. Under these Materials, it is particularly preferred Polyoxyethylene alkyl ether, polyoxyethylene sec-alkyl ether, Alkylglyceryl ether, alkylpentaerythrylglyceryl ether or Use polyether modified silicones. This Foam stabilizers can either be used alone or as one Mixture of two or more of them can be used.

If the content of the as a foam stabilizer in the If the surfactant used is too low, the Foam is difficult to form in the spraying step. If the Salary of which is too large will be on the other side of the Foam is excessively stabilized and cannot quickly be defoamed. Thus, the content thereof is preferably in the range of 0.1 to 5% by weight, more preferably 0.3 to 3% by weight.  

To dissolve the acid dye and the Accelerating the permeation accelerator is preferred that the semi permanent acidic hair dye stock solution a well-known low alcohol or Contains low polyol. Examples of low alcohol include ethanol, isopropanol, n-propanol and n-butanol. Examples of the lower polyol include ethylene glycol, Propylene glycol, isoprene glycol, 1,3-butylene glycol, glycerol, Diethylene glycol monoethyl ether, diethylene glycol diethyl ether and ethylene glycol monoethyl ether.

The semi-permanent, acidic hair coloring stock solution can further, if necessary, various additives included, which are commonly used in cosmetics such as oily components (e.g. paraffin oil, lanolin, silicone, higher Fatty acids, higher alcohols), hair protection components, Bactericide, hair growth stimulants, hair nutrients, Preservatives, anti-dandruff agents, UV absorbers, Perfumes, etc.

In addition to the components mentioned above for the semi-permanent, acidic hair dye includes semi-permanent, acidic hair dye composition of this Invention a blowing agent. Examples of the blowing agent include liquefied petroleum gases (e.g. propane, butane, Isopentane), dimethyl ether and freon gas (e.g. HCFC123, HFC134a, HFC152a).

If the level of the blowing agent is excessively low, can the foam is hard to form, and furthermore the Stock solution are difficult to spray out. On the other Side can be an excessive amount of the blowing agent Difficult to improve effect. Thus the salary of the Blowing agent preferably in the range of 0.1 to 20% by weight  Parts, more preferably from 1 to 15 parts by weight, per 100 parts by weight of the semi-permanent, acid hair dye Stock solution.

The semi-permanent, acidic hair dye solution according to the invention can be made by a conventional method. E.g. becomes the semi-permanent acidic hair coloring stock solution, which contains the acidic dye and other components together with the propellant in an aerosol container packed. In this case, it is preferred that the Aerosol container with an applicator (comb, brush, etc.) is provided so as to facilitate the application process. It is particularly preferred that the applicator be a Comb structure with a tooth width that is wider than the intervals of it and that the semi-permanent acidic Hair dye composition for an aerosol from the teeth is released (JP-A-U-6-38660).

This invention is described below with reference to preferred examples thereof explained in more detail.

Examples 1 to 4 and Comparative Examples 1 and 2

Semi-permanent acidic hair coloring stock solution for an aerosol with the compositions shown in Table 1 made in the usual way.  

Table 1

90 parts by weight of each stock solution thus obtained was in a polyethylene terephthalate (PET) container packed, which was equipped with an aerosol spray valve. Furthermore, 9 parts by weight of liquefied petroleum gas and 1 part by weight of dimethyl ether packed therein. So one get semi-permanent, acidic hair dye composition that was packed in the aerosol container. The thus obtained Composition was determined in terms of foam density and Coloring properties examined as follows.

(Foam density test)

The semi-permanent acidic hair dye compositions of the Examples 1 to 4 and Comparative Examples 1 and 2 were each from the aerosol container into a glass container (100 ml) sprayed at 25 ° C under 1 atm. After leaving for The excess foam was removed with a spatula for 10 seconds removed, and the foam in a volume of 100 ml weighed, whereby the foam density (g / ml) was determined. The data thus obtained were according to the following Criteria evaluated.

Criteria for evaluating foam density

A: Foam density is 0.1 g / ml or more
B: Foam density is less than 0.1 g / ml.

(Experiment with coloring properties)

The semi permanent acidic hair dye compositions of the Examples 1 to 4 and Comparative Examples 1 and 2 were each in an amount of a golf ball size of that Aerosol containers sprayed out and then onto a white one Hair tress applied with a weight of about 3 g. After  The curl was left standing at room temperature for 15 s washed in warm water, shampooed and rinsed. The color the curl thus colored was made with a color difference meter (CR200, manufactured by Minolta Camera Co., Ltd.) and the color difference (ΔE) from the non-colored white Lock of hair was determined. The results, where a higher AE value for the better coloring properties are shown in Table 2.

Table 2

As can be seen from the results of Table 2, the compositions of Examples 1 to 4 each one Foam density of 0.1 g / ml or more and good Coloring properties. In contrast, the composition of comparative example 1 a low viscosity and Composition of comparative example 2 gives a very unstable foam and the compositions of the Comparative Examples 1 and 2 have foam densities of less than 0.1 g / ml and poor coloring properties.

Examples 5 to 7 and Comparative Example 3

Semi-permanent acidic hair coloring stock solutions for one Hair aerosol with the compositions shown in Table 3 were made in a conventional manner.  

Table 3

90 parts by weight of each stock solution thus obtained was packed in a PET container that was filled with a Aerosol spray valve was equipped. Furthermore, were 8.5 parts by weight of liquid petroleum gas and 1.5 parts by weight Dimethyl ether packed in it. So one get semi-permanent, acidic hair dye composition that was packed in the aerosol container. The thus obtained  Composition was determined in terms of foam density and Coloring properties by the same procedures as for Example 1 examined. The results are in Table 4 shown.

Table 4

As can be seen from the results of Table 4, the compositions of Examples 5 to 7 each one Foam density of 0.1 g / ml or more and good Coloring properties. In contrast, the composition of comparative example 1 an excessively low viscosity and thereby a foam density of less than 0.1 g / ml Allow to stand for 10 s and low staining properties.

Example 8 and Comparative Example 4

Semi-permanent, acidic hair coloring stock solutions for one Aerosol with the compositions shown in Table 5 were made in a conventional manner. The foam density each product was sprayed onto the same 10 s Way as evaluated in Example 1. The results are in Table 5 shown.  

Table 5

90 parts by weight of each stock solution thus obtained were packed in a PET container that was filled with a Aerosol spray valve was equipped. Furthermore, were 8.5 parts by weight of liquefied petroleum gas and 1.5 parts by weight Dimethyl ether packed in it. This made it a semi-permanent one acidic hair dye composition obtained in the Aerosol container was packed. Then a comb-like Applicator directly connected to the aerosol container.  

The semi permanent acidic hair dye compositions from Example 8 and Comparative Example 4 and one available semi-permanent acidic dye (gel) in a tube was packed and applied with the connected brush, were used by three subjects, white hair in an amount of 20%. The products received were made with a view to the convenience of the application amount used, skin pollution, etc. and the Inconspicuousness of white hair evaluated. The results are shown in Table 6. Every evaluation point says ○ for "good", Δ for "moderate" and x for "bad".

Table 6

Comment:

* 1: Easily applied with a single hand, very distributable foam, short application time.
* 2: No dirt on the skin.
* 3: Little showy white hair all over the hair.
* 4: Lightly applied with a single hand, dry and coarse foam, difficult to match with the hair, sagging and dripping, dirt on the hands.
* 5: No dirt on the skin.
* 6: Light coloring, showy white hair.
* 7: Applied with both hands, low gel spreadability, uneven application.
* 8: Forehead and scalp dirty.
* 9: Non-uniform coloring, showy white hair.

As can be seen from the results of Table 6, the composition of Example 8 in terms of foam density and the amount used, can be easily applied causes no pollution on the skin, etc. and makes the white hair inconspicuous.

The composition of Comparative Example 4 is low Foam density after 10 s. So the foam is dry, coarse and not very compatible with hair. Furthermore, the Difficult defoaming composition and therefore only in one small amount used, which does not cause white hair is made sufficiently inconspicuous.

The commercially available product has a low one Spreadability of the gel and a non-uniform Coloring performance. It also seriously pollutes the skin, etc.

This invention can thus improve the coloring properties of a semi-permanent, acidic hair dye composition for one Improve aerosol that allows good application.

Claims (8)

1. Semi-permanent, acidic hair dye composition for one Aerosol, comprising a semi-permanent, acid hair dye Stock solution comprising an acidic dye and a Propellant, packed in an aerosol container and at use in the form of a foam sprayed out, in which the composition defoams so that a foam density of at least 0.1 g / ml 25 ° C under 1 atm within 10 s after spraying surrender. 2. The composition of claim 1, wherein the stock solution has a viscosity of 1,000 to 50,000 cs. 3. The composition of claim 1 or 2, wherein the Stock solution an aromatic alcohol or N- Contains alkyl pyrrolidone as a permeation accelerator. 4. A composition according to any one of claims 1 to 3, wherein the stock solution expressed an acid concentration as a buffer capacity of at least 0.01 g equivalent / l Has. 5. The composition according to any one of claims 1 to 4, wherein the stock solution as a water soluble polymer Contains viscosity control agents. 6. The composition according to any one of claims 1 to 5, wherein the stock solution a surfactant as a foam stabilizer contains.   7. Semi-permanent, acidic hair dye aerosol product, wherein a semi permanent acidic hair dye composition for an aerosol comprising a semi-permanent, acidic Hair dye stock solution comprising an acidic one Dye and propellant, in an aerosol container is packed, which is provided with an applicator, and when used in the form of a foam is sprayed out. 8. An aerosol product according to claim 7, wherein the applicator has a comb structure, the tooth width being wider is as the intervals thereof and what the semi-permanent, acidic hair dye composition for one Aerosol is released from the teeth.