JPH09175961A - Acidic semi-permanent hair dyeing material composition for aerosol spray - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an acidic semipermanent hair dyeing material composition for an aerosol spray, excellent in dyeing property, eliminating a dripping down of the dyeing material composition during the dyeing, not polluting a scalp, etc., and simple in applying operation. SOLUTION: This acidic semipermanent hair dyeing material composition for an aerosol spray is to fill a material blended with the acidic semipermanent dyeing material stock solution containing an acid dye, a penetration accelerating agent, a viscosity adjusting agent, a foam quality stabilizing agent, etc., with a propellant simultaneously into an aerosol container equipped with an applicator such as a comb or a brush and use it by spraying in a foam state. At that time, it is necessary to eliminate the foam so that the density of the foam becomes >=0.1g/ml at 25 deg.C under an atmospheric pressure within 10sec after spraying. Also, in this case, the viscosity of the acidic semipermanent dyeing material stock solution is preferably made to be 1000-5000cs. Based on 100 pts.wt. acidic semipermanent hair dyeing material stock solution, 0.1-20 pts.wt. propellant is blended. The concentration of the acid in the stock solution is set to >=0.01g equivalent/l in the case of expressing the acid concentration by a buffering capacity.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an acidic semi-permanent hair dye composition for aerosol. More specifically, the present invention relates to an acidic semi-permanent hair dye composition for aerosols, which has excellent dyeability, does not cause dripping of the hair dye composition during hair dyeing, and has little stain on the scalp and the like, and has a simple coating operation.

[0002]

2. Description of the Related Art Conventionally, acidic semi-permanent hair dyes, which are dyed by permeating an acidic dye into the hair, have been widely used under general trade names such as hair nail polish. Since such an acidic semi-permanent hair dye contains a penetration enhancer such as benzyl alcohol in addition to the acid dye, it has excellent penetrability into hair and good dyeability, but is also strong against the skin. It has a drawback that it has dyeability. Further, since the conventional acidic semi-permanent hair dye has a relatively low viscosity, it has a drawback that the acidic semi-permanent hair dye itself easily drops on the scalp and forehead during hair dyeing. Therefore, there is a problem that the scalp, the forehead, etc. are colored by the acidic semi-permanent hair dye, and the subsequent washing is difficult.

In order to avoid this problem, a thickener is added to the acidic semi-permanent hair dye to increase its viscosity, thereby preventing sagging of the acidic semi-permanent hair dye on the forehead, scalp and the like. Proposed. However, even in this case, the prevention of dripping of the acidic semi-permanent hair dye is not sufficient, and conversely, the increased viscosity reduces the operability of applying the acidic semi-permanent hair dye to hair, resulting in uneven dyeing. There was a problem that it would occur.

Therefore, in order to improve the coating operability when applying the acidic semi-permanent hair dye composition to hair and prevent the contamination of the scalp, the forehead and the like to the skin, a foaming agent is added to the acidic semi-permanent hair dye composition. It has been proposed that an aerosol container is filled with a mixture containing a propellant at the same time and is ejected from the aerosol container as a foam having a good shape-retaining property, and the foam of the acidic semi-permanent hair dye composition is applied to the hair ( Japanese Patent Laid-Open No. 61-210
023, JP 7-33629 A, etc.). In this case, in order to further simplify the application operation of the acidic semi-permanent hair dye composition, it has been proposed to use an aerosol container directly provided with a comb-shaped applicator as an aerosol container (Actual Kaihei 6- 38660 publication).

[0005]

However, in the case of a foamy acidic semi-permanent hair dye composition, the drop on the scalp and the forehead can be sufficiently suppressed, but the foam has good shape retention. As a result, the specific volume becomes large, and as a result, the bath ratio between the hair and the acidic semi-permanent hair dye composition when applied to the hair is generally reduced, and compared to conventional acidic semi-permanent hair dye compositions that do not form foams. As a result, there is a problem that the dyeability is greatly reduced.

As described above, the aerosol-type acidic semi-permanent hair dye composition is easy to apply and has less stain on the background such as scalp, but is excellent in dyeability. The current situation is that is not obtained.

The present invention is intended to solve the problems of the conventional techniques as described above, and does not contaminate the scalp or the like,
Moreover, it is an object of the present invention to improve the hair dyeing properties of an aerosol acidic semi-permanent hair dye composition which is also excellent in coating operability.

[0008]

Means for Solving the Problems The present inventor has determined that when an acidic semi-permanent hair dye composition comprising an acidic semi-permanent hair dye stock solution containing an acidic dye and a propellant is jetted into a foam form from an aerosol container, the predetermined amount after jetting It was found that by defoaming so as to increase the foam density within the period of time, it is possible to greatly improve the dyeability by increasing the bath ratio of the acidic semi-permanent hair dye stock solution to the hair without lowering the coating operability. ,
The present invention has been completed.

That is, the present invention relates to an acidic semi-permanent hair dye composition for aerosol injection, which comprises an acidic semi-permanent hair dye stock solution containing an acidic dye and a propellant, which is used by being filled in an aerosol container and ejected in the form of foam. There is provided an acidic semi-permanent hair dye composition for aerosol injection characterized by defoaming within 10 seconds after ejection so that the foam density at 25 ° C. and 1 atm becomes 0.1 g / ml or more. .

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.

The acidic semi-permanent hair dye composition for aerosol injection according to the present invention has a tendency that, when the composition is ejected in a foam form from an aerosol container, the defoaming starts after the ejection and the foam density becomes high. Thereby, the bath ratio of the acidic semi-permanent hair dye stock solution to the hair can be increased, and the dyeability can be greatly improved. In this case, within 10 seconds after ejection, 2
It is necessary to defoam so that the foam density at 5 ° C. and 1 atmosphere is 0.1 g / ml or more, preferably 0.2 g / ml or more. If the foam density is less than 0.1 g / ml even after 10 seconds, the bath ratio of the acidic semi-permanent hair dye stock solution to the hair will be low, and the dyeability will be reduced.

The application operability of the acidic semi-permanent hair dye composition for aerosol injection of the present invention has a certain level of operability within the time required to apply the foam to the hair of a brush or a hand (usually within a few seconds after ejection). Since it exists as a bubble, it does not significantly decrease.

Next, the acidic semi-permanent hair dye stock solution constituting the acidic semi-permanent hair dye composition of the present invention will be described.

The acidic semi-permanent hair dye stock solution used in the present invention contains an acidic dye. Furthermore, a penetration enhancer for promoting the penetration of the acid dye into the hair to enhance the dyeability,
It contains an acid component for adjusting the pH of the stock solution to the working pH range of the acid dye of 2 to 5.

If the viscosity of the acidic semi-permanent hair dye stock solution (Brookfield B type viscometer / 30 ° C.) is too low, it is difficult to form bubbles when ejected from the aerosol container, and the coating operability is deteriorated. On the other hand, if it is too high, it becomes difficult to eject bubbles from the aerosol container.
0-50000 cs, more preferably 2000-400
It is 00cs. The viscosity can be adjusted as appropriate by adding a thickener described below.

The acid dye used in the present invention is not particularly limited as long as it is an acid dye generally used for dyeing hair. For example, red 2, red 3, red 102, red 104, Red No. 105, Red 106
No. 4, Yellow No. 5, Yellow No. 5, Green No. 3, Blue No. 1, Blue No. 2
No., Red No. 201, Red No. 227, Red No. 230, Red No. 231, Red No. 232, Orange No. 205, Orange No. 207, Yellow No. 202, Yellow No. 203, Green No. 201, Green No. 204.
No., Green No. 205, Blue No. 202, Blue No. 203, Blue No. 205, Brown No. 201, Red No. 401, Red No. 502
No., Red 503, Red 504, Red 506, Orange 4
02, yellow 402, yellow 403, yellow 406,
Yellow 407, green 401, green 402, purple 40
No. 1 and black No. 401 can be mentioned.

The content of these acid dyes in the stock solution is preferably 0.01 to 3% by weight, more preferably 0.1 to 3% by weight.
2%.

The penetration enhancer used in the present invention is preferably an aromatic alcohol of the formula (1) or an N-alkylpyrrolidone of the formula (2).

[0019]

Embedded image (In the formula (1), R ¹ is a hydrogen atom, a lower alkyl group such as a methyl group or a lower alkoxy group such as a methoxy group,
Y is an alkylene group such as a methylene group, an alkenylene group such as a vinylene group, or a single bond, Z is a hydrogen atom or a hydroxyl group, and p and q are each independently an integer of 0 to 5.
Also. In formula (2), R ² is an alkyl group such as a methyl group or an octyl group. ) Preferred specific examples of the aromatic alcohol of the formula (1) include benzyl alcohol, cinnamyl alcohol, phenethyl alcohol, p-anisyl alcohol, p-methylbenzyl alcohol, phenoxyethanol, phenoxyisopropanol and 2-benzyloxy. Examples thereof include ethanol. In addition, specific preferred examples of the N-alkylpyrrolidone of the formula (2) include N-methylpyrrolidone, N-ethylpyrrolidone and N-octylpyrrolidone.

As for the content of these penetration enhancers in the stock solution, if the content is too small, the dyeability does not reach a satisfactory level, and if the content is too large, the effect cannot be expected to increase. 20% by weight, more preferably 5 to 1
5% by weight.

As the acid used in the present invention, a weak acid is preferably used considering that the hair itself has an ion buffering ability. Specific examples of the 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, phosphoric acid and the like. To be
In this case, it is preferable that the stock solution has a buffering capacity by using these weak acids in combination with their sodium salts, potassium salts, ammonium salts or the like.

The concentration of the acid in the stock solution is preferably 0.01 g equivalent / l or more when the acid concentration is expressed as a buffer capacity.
More preferably, it is 0.02 g equivalent / l or more.

As described above, the acidic semi-permanent hair dye stock solution of the present invention has a viscosity of Brookfield B type so that the stock solution may be foamed at the time of spraying the aerosol, and immediately after the spraying, the foam density is increased so that the foam density is increased. Viscometer (under 30 ℃) 1000 ~
It is preferable to contain a viscosity modifier so that the viscosity becomes 50,000 cs. As such a viscosity modifier, it is preferable to use a water-soluble polymer, for example, natural gums such as xanthan gum and guar gum or modified products thereof,
Examples thereof include cellulose derivatives such as hydroxyethyl cellulose, methyl cellulose and carboxymethyl cellulose, alginic acid derivatives such as sodium alginate and propylene glycol alginate, and synthetic polymers such as polyvinyl alcohol, polyvinylpyrrolidone and polyethylene glycol. Above all, it is more preferable to use natural gums or modified products thereof, or cellulose derivatives.

These water-soluble polymers can be used alone or in combination of two or more. The content of the stock solution can be appropriately determined according to the intended viscosity of the stock solution.

Further, it is preferable to add a foam quality stabilizer to the stock solution of the acidic semi-permanent hair dye for the purpose of adjusting the stability of the generated foam. As such a foam quality stabilizer, it is preferable to use a surfactant. Examples of such a surfactant include polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene-sec-alkyl ether,
Examples thereof include alkyl glyceryl ether, alkyl pentaerythryl glyceryl ether, alkyl sulfates, polyoxyethylene alkyl sulfates, alkyl sulfonates, polyether modified silicones and alkyl phosphates. Above all, it is more preferable to use polyoxyethylene alkyl ether, polyoxyethylene-sec-alkyl ether, alkyl glyceryl ether, alkyl pentaerythryl glyceryl ether, and polyether-modified silicones. These foam quality stabilizers may be used alone or in combination of two or more kinds.

If the content of the surfactant as the foam quality stabilizer in the stock solution is too small, bubbles are unlikely to be formed at the time of jetting, and if it is too large, the bubbles are excessively stabilized and do not immediately disappear. Is 0.1 to 5% by weight, more preferably 0.3 to 3% by weight.

Further, the acidic semi-permanent hair dye stock solution preferably contains a known lower alcohol or lower polyol in order to enhance the solubility of the acidic dye or the penetration enhancer. Specific examples of such lower alcohols include ethanol, isopropanol, n-propanol and n-butanol. Further, specific examples of the lower polyol include ethylene glycol, propylene glycol, isoprene glycol, 1,3-butylene glycol, glycerin, diethylene glycol monoethyl ether, diethylene glycol, diethyl ether, ethylene glycol monoethyl ether and the like.

In addition, the acidic semi-permanent hair dye stock solution may contain oils such as paraffin oil, lanolin, silicones, higher fatty acids and higher alcohols, hair protectors and bactericides, if necessary, within a range that does not impair the effects of the present invention. Various additives used in general cosmetics such as a hair restorer, an antiseptic, an anti-dandruff agent, an ultraviolet absorber, and a fragrance can be added.

The acidic semi-permanent hair dye composition of the present invention contains a propellant in addition to the aforementioned acidic semi-permanent hair dye raw material. As the propellant, liquefied petroleum gas such as propane, butane, isopentane, dimethyl ether, HCFC123, HF
Fluorocarbon gas such as C134a and HFC152a can be used.

If the amount of these propellants used is too small, it becomes difficult to form bubbles, and it becomes difficult to eject the stock solution itself. On the contrary, since there is no difference in the effect obtained even if the amount is too large, it is preferably 0.1 to 20 parts by weight, more preferably 1 to 15 parts by weight, relative to 100 parts by weight of the acidic semi-permanent hair dye stock solution.

The acidic semi-permanent hair dye composition of the present invention can be produced by a conventional method. For example, it can be manufactured by filling an acidic semi-permanent hair dye stock solution containing an acid dye and other components into an aerosol container together with a propellant. In this case, in order to simplify the coating operation,
It is preferable to use an aerosol container equipped with an applicator such as a comb or a brush. In particular, the applicator has a comb structure in which the comb tooth width is wider than the comb tooth interval, and a structure in which the acidic semi-permanent hair dye composition for aerosol injection is ejected from the comb tooth (Japanese Utility Model Laid-Open No. 6-38660). Those that have become preferred.

[0032]

The present invention will be described in detail below with reference to the following examples.

Examples 1 to 4 and Comparative Examples 1 to 2 A stock solution of an acidic semi-permanent hair dye composition for aerosol having the composition shown in Table 1 was prepared according to a conventional method.

[0034]

(Table 1) (% by weight) Examples Comparative Examples Ingredients 1 2 3 4 1 2 Ethanol 15.0 10.0 15.0 15.0 15.0 15.0 1,3-Vetylene glycol- 10.0-5.0--Glycerin--5.0 --- Benzylic alcohol 5.0-5.0 3.0 5.0 5.0 Benzyleoxyethanol − 5.0 − 3.0 − − N-methylprolylone 5.0 − 8.0 − 5.0 5.0 Citric acid 3.0 5.0 − − 3.0 3.0 Lactic acid − − 3.0 − − − Phosphoric acid − − − 3.0 − − Glycolic acid − − − 2.0 --- NaOHaq soln. (・ ・ ・ ・ ・ Amount required to reach pH 3 ...) Isostearyl pentaerythryl glyceryl ether-0.1 2.0-6.0 6.0 Stestearyl glyceryl ether 0.1-1.0 0.1 0.1 Polyoxy Ethylene (23) Lauryl ether − − − 0.05 − 1.0 Polyether modified silicone * 1 0.5 0.5 0.6 0.05 0.5 − Xanthan gum 1.0 1.5 1.0 1. 5 0.3 1.0 Black No. 401 0.03 0.03 0.03 0.03 0.03 0.03 Orange No. 205 0.06 0.06 0.06 0.06 0.06 0.06 Viscosity (cs) 20000 25000 20000 20000 800 20000 Buffer capacity (g equivalent / l) 0.014 0.024 0.013 0.025 0.014 0.014 Table Note * 1: Silicone SH3775, Toray

90 parts by weight of the obtained stock solution was filled in a PET container having an aerosol injection valve, and further 9 parts by weight of liquefied petroleum gas and 1 part by weight of dimethyl ether were added to the acidic container filled in the aerosol container. A semi-permanent hair dye composition was obtained. The obtained composition was subjected to the following foam density test and dyeability test.

(Foam Density Test) Examples 1 to 4 and Comparative Example 1
The acidic semi-permanent hair dye composition of ~ 2 is sprayed from an aerosol container to a glass container of 100 ml at 25 ° C under a pressure of 1 atm under a heap, and after leaving for 10 seconds, excess foam is scraped off with a spatula to correspond to 100 ml. The weight was measured to determine the foam density (g / ml). Then, the obtained numerical values were evaluated according to the following criteria. Table 2 shows the obtained results.

Criteria for evaluation of foam density O: When foam density is 0.1 g / ml or more X: When foam density is less than 0.1 g / ml

(Dyeability test) Examples 1 to 4 and Comparative Example 1
Each of the acidic semi-permanent hair dye compositions of ~ 2 was jetted out from an aerosol container in the amount of a golf ball, and the composition was applied to a hair bundle of about 3 g in weight. After leaving it at room temperature for 15 minutes, it was rinsed with lukewarm water and further shampooed and rinsed. The obtained dyed hair is colored with a color difference meter (CR20
0, manufactured by Minolta Co., Ltd.) to determine the color difference (ΔE) from the original gray hair bundle. Table 2 shows the results. in this case,
The higher the ΔE, the higher the dyeability.

[0039]

[Table 2] Examples Comparative examples Evaluation items 1 2 3 4 1 2 Foam density ○ ○ ○ ○ × × Dyeability (△ E) 50 53 51 56 36 32

From Table 2, the compositions of Examples 1 to 4 all had a foam density of 0.1 g / ml or more and showed high dyeability, whereas the composition of Comparative Example 1 had a low viscosity, In addition, the composition of Comparative Example 2 has a very stable foam, so that both are 1
The foam density after standing for 0 seconds was less than 0.1 g / ml, and the dyeability was low.

Examples 5 to 7 and Comparative Example 3 A stock solution of the acidic semi-permanent hair dye composition for aerosol having the composition shown in Table 3 was prepared by a conventional method.

[0042]

(Table 3) (wt%) Example Comparative Example Component 5 6 7 3 Ethanol 10.0 10.0 15.0 15.0 1,3-Vetylene glycol 5.0 5.0 5.0 5.0 5.0 Benzylic alcohol 5.0 5.0 5.0 3.0 Benzylic oxyethanol 3.0 3.0 3.0 3.0 Citric acid 1.0 5.0- − Lactic acid 5.0 − 3.0 3.0 NaOHaq soln. (Amount required to reach pH 3) Isostearyl pentaerythryl glyceryl ether − − 2.0 − Polyoxyethylene (9) -sec-tetradecyl ether 1.0 2.0 − 1.0 Polyether Modified silicone * 1 0.1 0.3 0.3-Human Doxyethylcellulose 1.0 1.0 1.0-Black 401 No. 0.03 0.03 0.03 0.03 Orange No. 205 0.06 0.06 0.06 0.06 Viscosity (cs) 20000 20000 20000 <100 Buffer capacity (g equivalent / l) 0.030 0.025 0.015 0.015

90 parts by weight of the obtained stock solution was filled in a PET container having an aerosol injection valve, and further 8.5 parts by weight of liquefied petroleum gas and 1.5 parts by weight of dimethyl ether were filled to form an aerosol container. The filled acidic semi-permanent hair dye composition was obtained. About the obtained composition,
A foam density test and a dyeability test were carried out and evaluated in the same manner as in Example 1. Table 4 shows the obtained results.

[0044]

[Table 4]

The compositions of Examples 5 to 7 all had a foam density of 0.1 g / ml or more and showed high dyeability.
The composition of Comparative Example 3 had a foam density after standing for 10 seconds of less than 0.1 g / ml because the viscosity was too low, and the dyeability was also low.

Example 8 and Comparative Example 4 An undiluted solution of the acidic semi-permanent hair dye composition for aerosol having the composition shown in Table 5 was prepared by a conventional method. The bubble density after 10 seconds from ejection was evaluated in the same manner as in Example 1 and is shown in Table 5.

[0047]

[Table 5]

90 parts by weight of the obtained stock solution was filled in a PET container having an aerosol injection valve, and further 8.5 parts by weight of liquefied petroleum gas and 1.5 parts by weight of dimethyl ether were filled to form an aerosol container. The filled acidic semi-permanent hair dye composition was obtained. Further, a comb-shaped applicator was directly connected to the aerosol container.

The acidic semi-permanent hair dye composition of Example 8 and Comparative Example 4 and a commercially available gel-like acidic semi-permanent hair dye composition (applied with the attached dedicated brush) were used to give a white hair ratio of 20%.
Each of the three monitors used it and evaluated the "easiness of application", "amount used", "coloring of the skin etc." and "hiding power of gray hair". Table 6 shows the results.
In addition, for each evaluation item, if good, ○,
Poor cases were evaluated as x, and their middle was evaluated as Δ.

[0050]

[Table 6] Monitor Items to be applied Ease of application Amount to be used Coloring to the skin Color hiding of gray hair A Example 8 ○ * 1 30 g ○ * 2 ○ * 3 B Comparative Example 4 △ * 4 16 g ○ * 5 × * 6 C Commercial product × * 7 35 g × * 8 × * 9 Table 6 Note * 1: Can be applied with one hand and foam spreads well, and application was possible in a short time. * 2: There was no coloring on the background. * 3: The gray hair of the entire hair became almost inconspicuous. * 4: I could do it with one hand, but the bubbles were dry and difficult to fit in my hair, and moreover I dipped my hands and my hands got dirty. * 5: The background was not colored at all. * 6: The coloring was light and the gray hair was conspicuous. * 7: Since both hands had to be used and the gel did not stretch, it got stuck in the area where it was applied. * 8: The forehead and scalp were colored. * 9: The coating was uneven and the gray hair was noticeable.

From Table 6, the composition of Example 8 had an appropriate foam density and usage amount, and there was no problem with respect to the ease of application, the coloring of the background or the like, and the hiding power of gray hair.

In Comparative Example 4, the foam density after 10 seconds was small,
As a result, the bubbles were dry and did not fit easily into the hair, and the amount of the bubbles used was also reduced because the bubbles were difficult to disappear, and the hiding power of the white hair was poor.

The commercially available product did not spread well and was unevenly dyed. In addition, there was much coloring on the background.

[0054]

EFFECTS OF THE INVENTION According to the present invention, it is possible to improve the hair dyeability of an aerosol acidic semi-permanent hair dye composition which is excellent in coating operability.

Claims (8)

[Claims] 1. An acidic semi-permanent hair dye composition for aerosol injection, comprising an acidic semi-permanent hair dye stock solution containing an acidic dye and a propellant, which is used by being filled in an aerosol container and ejected in the form of foam. An acidic semi-permanent hair dye composition for aerosol injection, which is defoamed within 10 seconds at 25 ° C. so that the foam density at 1 atmosphere is 0.1 g / ml or more. 2. The acidic semi-permanent hair dye stock solution has a viscosity of 1000.
The acidic semi-permanent hair dye composition for aerosol injection according to claim 1, which is -50000 cs. 3. The acidic semi-permanent hair dye composition for aerosol injection according to claim 1, wherein the stock solution of acidic semi-permanent hair dye contains aromatic alcohol or N-alkylpyrrolidone as a penetration promoter. 4. The acid concentration represented by the buffering capacity in the acidic semi-permanent hair dye stock solution is 0.01 g equivalent / l or more.
The acidic semi-permanent hair dye composition for aerosol injection according to any one of 3 above. 5. The acidic semi-permanent hair dye composition for aerosol injection according to claim 1, wherein the acidic semi-permanent hair dye stock solution contains a water-soluble polymer as a viscosity modifier. 6. The acidic semi-permanent hair dye composition for aerosol injection according to claim 1, wherein the acidic semi-permanent hair dye stock solution contains a surfactant as a foam stabilizer. 7. An acidic semi-permanent hair dye aerosol product, characterized in that the acidic semi-permanent hair dye composition for aerosol injection according to claim 1 is filled in an aerosol container equipped with an applicator. . 8. The acidic semi-permanent hair dye aerosol according to claim 7, wherein the applicator has a comb structure in which the comb tooth width is wider than the comb tooth interval, and the acidic semi-permanent hair dye composition for aerosol injection is discharged from the comb teeth. Product.