JP6503166B2 - Emulsifiable aerosol composition containing an oxidizing agent - Google Patents

Description

The present invention relates to an emulsified aerosol composition containing an oxidizing agent used in a hair dye.

As a hair dye, a hair dye, a decoloring agent, a decoloring agent, a decoloring agent, a decoloring agent, etc. are known, and two or more types of agents are mixed and mixed at the time of use. A hair dye is generally used as a second agent, which chemically reacts (oxidatively polymerizes) an oxidation dye in the hair to change the color of the hair, forms a dye and fixes it inside the hair, or melanin of the hair itself Oxidizing agent containing compositions have been used for the purpose of decomposing the pigment by an oxidation reaction to make the hair appear brighter.

In the oxidizing agent-containing composition, hydrogen peroxide is used as an oxidizing agent. Hydrogen peroxide is unstable and easily released oxygen and decomposed. As a stabilizer to suppress this decomposition, phenacetin, 1-hydroxyethane-1,1-diphosphonic acid, sodium stannate, acetanilide, etc. are used . (For example, Patent Document 1)

In addition, since the oxidizing agent-containing aerosol composition is easily decomposed by the temperature, pH, components of contents, metal powder in the container, microorganisms, etc., the hydrogen peroxide contained in the composition is There is a risk of swelling. Especially in the case of an aerosol preparation, unlike a general plastic container etc., since it is completely sealed, oxygen generated by the decomposition of hydrogen peroxide causes an increase in the internal pressure in the container, and the discharge amount of the contents It may increase and may affect the hair dyeability and decolorization as a preparation. (Patent Document 2)

Also, the most widely used propellants in the current market for aerosol compositions are LPG, DME, etc. However, when LPG, DME, etc. are used as the propellant, it is not possible to obtain a suitable foam-like discharge when the use environment is low temperature, and when the use environment is high temperature, the discharged foam is used. Has a disadvantage that the foam state changes greatly depending on the use environment, such as extremely low bulk density. (Patent Document 3)

JP-A-7-2558045 JP-A-8-301740 JP 2011-37772

In the contents of Patent Documents 1 and 2, the purpose is to stabilize hydrogen peroxide, and therefore, when formulated into an aerosol, it is not possible to obtain a suitable foam-like discharge at low temperatures. In addition, when the emulsion composition is formulated into an aerosol, it is difficult for the oil to inhibit foaming of the active agent and to obtain a suitable foam state.

Furthermore, although phenacetin is known as a stabilizer for hydrogen peroxide, phenacetin exerts patented technology with respect to Patent Documents 1 and 2 because of the risk of developing renal failure, renal pelvis and bladder tumor. It is difficult to formulate.

With regard to Patent Document 3, although a suitable foam-like discharge can be obtained at low temperatures, the stability when hydrogen peroxide is contained is not considered.

Moreover, in the prior art, it is not enough to suppress the decomposition of hydrogen peroxide, and it has been exposed to high temperature conditions for a long time especially in the container which is used for transportation in the car and overseas etc. In the case, there was a problem that the stability of hydrogen peroxide was reduced.

In addition, if the foamability is improved to obtain a suitable foam-like discharge at low temperature, the bulk specific gravity of the discharge at normal temperature becomes extremely small, and thus the problem of impairing the hair coloring and lightness was there.

MEANS TO SOLVE THE PROBLEM As a result of earnestly examining this invention, in order to solve the said problem, 1 type, 2 or more types chosen from (A) hydrogen peroxide, (B) POE lauryl ether, and POE alkyl (12-14) ether, (C) An aerosol stock solution containing an alkali metal hydroxide, (D) 1-hydroxyethane-1,1-diphosphonic acid, and (E) a propellant, the aerosol stock solution having a pH of 4.5 or less The present invention has been accomplished by providing an emulsified aerosol composition containing an oxidizing agent.

The present invention is an emulsion type aerosol composition containing an oxidizing agent excellent in hydrogen peroxide stability even when exposed to high temperature conditions without having to consider storage conditions and transport conditions, and It is possible to provide an emulsified aerosol composition containing an oxidizing agent that can be used at low temperatures without impairing the foamability.

The present invention is an emulsion type aerosol composition containing an oxidizing agent which is used by being mixed with a first agent containing an alkaline agent at the time, which comprises (A) hydrogen peroxide, (B) POE lauryl ether and POE. (E) an aerosol stock solution containing one or more selected from alkyl (12 to 14) ethers, (C) hydroxides of alkali metals, (D) 1-hydroxyethane-1,1-diphosphonic acid; 2.) An emulsifying aerosol composition containing an oxidant, which contains a propellant, and the aerosol stock solution has a pH of 4.5 or less.

The emulsified aerosol composition containing the oxidizing agent according to the present invention contains (A) hydrogen peroxide. (A) Hydrogen peroxide chemically reacts (oxidatively polymerizes) an oxidation dye contained in the first agent containing an alkali agent in the hair to form a pigment and fix it inside the hair to dye the hair, The melanin pigment possessed by the hair itself can be decomposed by an oxidation reaction to make the hair appear bright.

Although content of the said (A) component used for this invention is not specifically limited, 1 to 6 weight% is preferable. When the amount of the component (A) is less than 1% by weight, there is a possibility that the oxidation dye can not be sufficiently oxidatively polymerized or the melanin can not be sufficiently decomposed. Moreover, when content of the said (A) component exceeds 6 weight%, there is a possibility that a load may be applied to hair, and hair may be damaged. In the present invention, values indicating the contents of other components are weight% unless otherwise specified.

When the residual rate of the component (A) used in the present invention decreases with time, the oxidation dye can not be sufficiently oxidized and polymerized, or the melanin can not be sufficiently degraded, and appropriate dyeing can not be performed. There is a possibility that hairiness or lightness can not be obtained.

The component (B) used in the present invention contains one or more selected from (B) POE lauryl ether and POE alkyl (12 to 14) ether from the viewpoint of improving the foamability of the aerosol stock solution. Is preferred. Further, unlike the other nonionic surfactants, the component (B) has a remarkable effect on the foaming property at a low temperature.

The component (B) used in the present invention is not particularly limited as long as it is POE lauryl ether or POE alkyl (12 to 14) ether, but the average addition mole number of polyoxyethylene group is 2 to 15 preferable. More preferably, it is in the range of 2-9. If the average added mole number of the polyoxyethylene group is more than 15, the foamability at 5 ° C. may be deteriorated.

Although content of the said (B) component used for this invention is not specifically limited, 1 to 3% is preferable. More preferably, it is 1.5 to 2.5% of range. When the component (B) is less than 1%, sufficient foamability can not be obtained, and there is a risk of dripping. If it exceeds 3%, bubbles may not penetrate into the hair at the time of use, and there is a possibility that the proper hair dyeability or lightness can not be obtained.

The component (C) used in the present invention is used as a pH adjuster, and has a remarkable effect of improving the stability of the component (A).

The component (C) used in the present invention is not particularly limited, and lithium hydroxide, sodium hydroxide, potassium hydroxide, rubidium hydroxide, cesium hydroxide can be used, and the component (C) is one type. Or you may contain 2 or more types. Among them, the component (C) is preferably sodium hydroxide or potassium hydroxide from the viewpoint of the stability of hydrogen peroxide. More preferably, it is potassium hydroxide.

Although content of the said (C) component used for this invention is not specifically limited, 0.004 to 1% is preferable. More preferably, it is in the range of 0.02 to 0.5%. When the amount of the component (C) is less than 0.004%, the pH adjusting action may not be sufficiently obtained, and the component (A) may not be stabilized. If it exceeds 1%, no further pH adjustment action can be obtained, which may adversely affect the stability of the preparation.

The component (D) used in the present invention has an excellent sequestering action as a stabilizer for the component (A), a pH adjusting action, and an effect of improving the stability of the component (A).

Although content of the said (D) component used for this invention is not specifically limited, 0.01 to 2% is preferable. More preferably, it is in the range of 0.05 to 1%. When the amount of the component (D) is less than 0.01%, the pH adjusting action may not be sufficiently obtained, and the component (A) may not be stabilized. If it exceeds 2%, no further sequestering action or pH adjustment action can be obtained, which may adversely affect the stability of the preparation.

The component (E) used in the present invention can obtain stable foam without dripping the aerosol stock solution.

The component (E) used in the present invention is not particularly limited, and liquefied gas such as LPG and dimethyl ether, compressed gas such as carbon dioxide gas and nitrogen gas can be used, and the component (E) is one or two. It may contain more than species. Among them, the component (E) is preferably liquefied gas from the viewpoint of maintaining a stable discharge amount of the preparation.

The component (E) used in the present invention preferably has an initial internal pressure in the range of 0.2 to 0.5 MPa at 20 ° C. The liquefied gas can be adjusted to any initial internal pressure by changing the composition.

As for the weight ratio of the aerosol undiluted | stock solution containing the said (A)-(D) component, and the said (E) component, aerosol undiluted | stock solution: propellant = 88:12-97: 3 are preferable. More preferably, it is the range of aerosol undiluted | stock solution: propellant = 90: 10-95: 5. If the weight ratio of the component (E) is less than 97: 3 for the aerosol stock solution: propellant, the foamability at 5 ° C. may be impaired. In addition, when the weight ratio of the component (E) exceeds aerosol stock solution: propellant = 88: 12, the bulk specific gravity of the discharge becomes small, and the intended effect to be originally used can not be obtained, that is, proper dyeing There is a possibility that hairiness or lightness can not be obtained.

The emulsified aerosol composition containing the oxidizing agent according to the present invention preferably has a pH of 4.5 or less.
When the pH is higher than 4.5, the component (A) can not be stabilized, resulting in an increase in internal pressure in the container, and the discharge amount of the content becomes larger than the set value to obtain appropriate hair dyeing properties or lightness. There is a fear that you can not do it.

The emulsion-type aerosol composition containing the oxidizing agent of the present invention may be appropriately blended with other raw materials usually used for cosmetics and the like within the range in which the effects of the present invention are not impaired. Oils, solvents, nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, moisturizers, water soluble polymers, antioxidants, UV absorbers, chelating agents, preservatives An agent, an antibacterial agent, a coloring agent, a fragrance, vitamins, a plant extract and the like can be used, and these may contain one or more kinds.

Hereinafter, the present invention will be described in more detail by way of examples and comparative examples. The present invention is not limited thereby.

In the evaluation test shown in the present specification, various experimental results carried out while variously changing the components contained in the emulsified aerosol composition containing an oxidizing agent and the content thereof are shown below.

In the evaluation test shown in this specification, it evaluated about "(A) stability of hydrogen peroxide", "hair dyeability", "brightness of hair", and "foamability under 5 degreeC conditions."

In the evaluation test shown in the present specification, “(A) Stability of hydrogen peroxide” is the result of storing the obtained emulsified aerosol composition containing an oxidizing agent at 40 ° C. for 3 months, (A) The residual rate of hydrogen peroxide was measured. (A) The determination method of hydrogen peroxide used the oxidation-reduction titration method.

In the evaluation test shown in the present specification, “hair dyeability” and “hairness of hair” are obtained by filling the obtained emulsion-containing aerosol composition containing an oxidizing agent into a metal closed container with a polyethylene inner bag. At the same time, using an emulsion-type aerosol composition containing an oxidizing agent stored for 3 months under 40 ° C. and an emulsion-type aerosol composition containing an oxidizing agent prepared on the day of the hair dyeing test .

The components and contents of the "coloring property of hair", the "brightness of hair" and the "decoloring agent containing an alkali agent" and the "hair coloring agent containing an alkali agent and an oxidation dye" used in the evaluation will be described later. The hair dye composition for hair test is obtained by mixing the hair dye composition obtained under the conditions of 25 ° C. by mixing in the same proportions as “the decolorizing agent containing an alkaline agent” and the “hair containing an alkaline agent and an oxidation dye”. After applying 120 g to the entire hair of “Cut Mannequin No. 775 N” (Burelux Co., Ltd.) and leaving it for 20 minutes, a hair dyeing operation to wash off was performed, and the dried hair was visually confirmed and evaluated.

In the evaluation test shown in the present specification, “foamability under 5 ° C. conditions” means that the obtained emulsified aerosol composition containing an oxidizing agent is stored under 5 ° C. conditions for 24 hours and then taken out immediately after removal. And the foamability of the preparation was evaluated visually.

Evaluation criteria of "Percentage of residual hydrogen peroxide" Residual ratio of hydrogen peroxide after storage for 3 months under 40 ° C condition ◎: 99% or more ○: 96% or more and less than 99% Δ: 94% or more and less than 96% × Less than 94%

Evaluation criteria of "hair dyeability" or "hair lightness" :: no change in dyeability or lightness.
:: A degree of change in hair dyeability or lightness but no problem.
Δ: change in hair dyeability or lightness
X: There are distinctly different changes in hair dyeability or lightness.

Evaluation criteria of "foamability under 5 ° C. conditions" :: foam is formed.
○: Form bubbles and keep bubbles for a while.
Δ: Foam is formed but collapses immediately.
X: Does not form a bubble.

Preparation method (B) Component, other oil component, activator, etc. and purified water are mixed and emulsified at 80 ° C. or higher. After emulsification, the mixture is cooled, and at 35 ° C., components (A), (C) and (D) are mixed to obtain an aerosol stock solution. The aerosol stock solution is mixed with the component (E) to obtain an emulsified aerosol composition containing an oxidizing agent.

Table 1 shows the components and contents of the first hair dye containing an alkaline agent and an oxidation dye. The emulsion-type aerosol composition containing the hair dye first agent and the obtained oxidizing agent was prepared as follows: "hair dye first agent: emulsion-type aerosol composition (second agent) = 1: 1 containing an oxidant" The mixture was mixed at a mixing ratio of 1, and the "hair-dyeing property" was evaluated using this.

Table 2 shows the components and contents of the first decoloring agent containing an alkaline agent. The emulsified aerosol composition containing the first decolorizing agent and the obtained oxidizing agent is mixed with "decoloring agent first agent: emulsified aerosol composition containing oxidizing agent (second agent) = 1: 1". The ratio was mixed and this was used to evaluate the "brightness of hair".

Comparative Example 1 was evaluated without containing a nonionic surfactant. Moreover, Comparative Examples 2 to 5 were evaluated by changing the type of surfactant.

In Comparative Examples 1 and 2, changes were observed in the hair dyeability or lightness of the hair. Furthermore, good foamability under 5 ° C. conditions was not obtained. In addition, in Comparative Examples 3 and 5, the residual ratio of hydrogen peroxide was not good, and a change in hair dyeability or lightness was observed. Furthermore, good foamability under 5 ° C. conditions was not obtained. In Comparative Example 4, the residual rate of hydrogen peroxide was not good, and a change in hair dyeability or lightness was observed.

Examples 1-15 were all good. When the amount of the component (B) is more than 3.0% by weight, a change in hair dyeability or lightness may be observed. If it is less than 1.0 weight, the foamability at 5 ° C. may be deteriorated.

The comparative example 6 evaluated about the emulsion type aerosol composition which does not contain (C) component but contains the oxidizing agent containing calcium hydroxide which is a hydroxide of alkaline-earth metal. As a result, the remaining rate of the component (A) was not good.

Moreover, Comparative Example 7 does not contain the component (D) and is evaluated using citric acid which is the prior art as a pH adjuster, and Comparative Example 8 does not contain the component (C) and citric acid which is different from the prior art It evaluated using sodium as a pH adjuster. As a result, the remaining rate of the component (A) was not good.

Comparative Example 9 contains sodium stannate which is a stabilizer of the component (A), which is the prior art, and in Comparative Example 10, the same pH as Example 1 is adjusted using citric acid and sodium citrate. It evaluated. As a result, the remaining rate of the component (A) was not good.

From the results of Examples 16 to 20, it was good even if the type of the component (C) was changed. From the results of Examples 16 and 17, the component (C) was good for sodium hydroxide and potassium hydroxide, and particularly good for potassium hydroxide.

Examples 21 to 31 were all good. The component (C) may be contained in an emulsion type aerosol composition containing an oxidizing agent, but preferably 0.004 to 1% by weight, more preferably 0.02 to 0.5% by weight. Met. Furthermore, the component (D) may be contained in the emulsified aerosol composition containing an oxidizing agent, but preferably 0.01 to 2% by weight, more preferably 0.05 to 1% by weight. The In addition, the pH of the emulsion type aerosol composition containing an oxidizing agent is preferably 4.5 or less, and particularly preferably 3.5 or less.

The comparative example 11 evaluated the pH of the emulsion type aerosol composition containing an oxidizing agent as 7.0. As a result, the residual ratio of hydrogen peroxide was not good, and a change in hair dyeability or lightness was observed.

Examples 32-36 were all good. In particular, the aerosol stock solution: propellant = 90: 10 to 95: 5 was good.

The present invention relates to an emulsified aerosol composition containing an oxidizing agent used in a hair dye. More specifically, it is possible to provide an emulsified aerosol composition containing an oxidizing agent which does not lose foaming even at low temperatures and which is stable even when stored for a long time under high temperature conditions.

Claims (1)

An emulsion type aerosol composition containing an oxidizing agent, which is used in combination with a first agent containing an alkaline agent, which is (A) hydrogen peroxide, (B) POE lauryl ether and POE alkyl (12 to 14) 1 or 2 types selected from ethers, (C) potassium hydroxide , (D) 1-hydroxyethane-1, 1-diphosphonic acid, and the average addition mole of the polyoxyethylene group of the component (B) The number is in the range of 2 to 15, the content of the component (B) is 1.5 to 2.5% by weight, and the content of the component (C) is 0.02 to 1% by weight, The aerosol undiluted | stock solution whose content of the said (D) component is 0.05 to 1 weight%, and (E) propellant are included, aerosol undiluted | stock solution is pH 4.5 or less, and the said aerosol undiluted | stock solution and (E) propellant The aerosol stock solution: propellant = 90: 1 95: 5-emulsifying aerosol composition containing an oxidizing agent characterized in that it contains a ratio (by weight).