JP2003206221A - Hair bleach - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hair bleach exhibiting strong and uniform bleaching effects, preventing unevenness of bleaching from occurring by a stabilized viscosity, and hardly having blowout of a mixed liquid and danger of rupture of a container caused by the generation of oxygen. <P>SOLUTION: This hair bleach contains at least one kind of a compound dissociating in water to form Mg<SP>2+</SP>or Ca<SP>2+</SP>ion. Magnesium sulfate, magnesium chloride, magnesium bromide, magnesium nitrate, calcium chloride, calcium bromide and calcium iodide are cited as a concrete example of the compound. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair bleaching agent, and more specifically, it dissociates in water to give Mg ²⁺ or C.
The present invention relates to a hair bleaching agent, which comprises at least one compound that generates a ²⁺ ion.

[0002]

BACKGROUND OF THE INVENTION Hair depigmenting agents are usually a creamy or liquid first agent containing an alkaline agent, a creamy or liquid second agent containing an oxidizing agent and a powdery third agent containing an oxidant. There are some that are composed of an agent, one that is a powdery form in which the first agent contains an alkaline agent and an oxidation accelerator, and one that is in a cream or liquid form in which the second agent contains an oxidizing agent. Furthermore, there is also a one-part powder type that contains a powdery alkaline agent, an oxidizing agent, and an oxidation accelerator, and is mixed with water at the time of use.

The mechanism of these hair decolorizing agents is to oxidize and decompose melanin granules, which are pigments that determine the color tone of hair, by oxygen generated by decomposing an oxidizing agent. Can be changed to yellow.

Further, in the hair bleaching agent containing the oxidative accelerator, which is more effective than the bleaching agent containing only the alkaline agent and the oxidant, the decomposition of the oxidant is promoted, and the generated oxygen causes the mixed solution to foam. However, when applied to the hair, an appropriate viscosity was not stably obtained. For this reason, uneven coating may occur, liquid may drip, and if the mixed solution is left as it is, oxygen may be generated and the mixed solution may be blown out. In particular, in general products, many are mixed in order to adjust the hair decolorizing agent in the bottle container, and when mixing, if the cap closed on the bottle container is forgotten to be removed, the container will be burst by the generated air. There was also a danger such as.

[0005]

Therefore, when using these strong-type hair bleaching agents, especially when performing the hair bleaching operation by oneself, uneven bleaching, easiness of application to hair, and oxygen Considering the risk of foaming of the mixed solution due to generation, it was necessary to quickly apply the mixed solution to the hair.

Therefore, the present invention provides a strong and uniform bleaching effect, stable viscosity, no uneven bleaching, and no risk of bleeding of the mixed liquid due to generation of oxygen or rupture of the container. The purpose is to provide a decolorizing agent.

[0007]

[Means for Solving the Problems]
As a result of splashing, it dissociates in water to a conventional hair bleaching agent,
²⁺Or Ca²⁺At least one species that produces ions
By containing a compound, it is possible to decompose the oxidant in the mixed solution.
Suppresses the generation of oxygen due to this, and is also a strong and uniform decolorizing effect.
We found that a hair bleaching agent that gives fruit is obtained, and a book
The invention was completed.

That is, the present invention dissociates in water to give M
A hair bleaching agent, characterized in that it contains at least one compound that produces g ²⁺ or Ca ²⁺ ions.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below.

Examples of the Mg ²⁺ ion generating compound used in the present invention include, for example, MgSO ₄ , MgCl ₂ ,
Examples of compounds selected from the group consisting of MgBr ₂ , Mg (NO ₃ ) _{2 and the} like, and Ca ²⁺ ion generating compounds include:
For example, a compound selected from the group consisting of CaCl ₂ , CaBr ₂ , CaI _{2 and the} like can be mentioned.

All of the above-mentioned ion-generating compounds are commercially available, and they can be used in the present invention.

The amount of the above-mentioned ion-generating compound to be added to the hair decolorizing agent is 0.01 to 5% by weight when used.
If it is less than 0.01% by weight, a sufficient decolorizing effect can be obtained.
Sufficient foaming suppressing effect cannot be obtained, and if it exceeds 5% by weight, sufficient decolorizing effect cannot be obtained, and foaming suppressing effect cannot be obtained any more. The lower limit of the blending amount is preferably 0.1% by weight,
By blending in an amount of not less than wt%, a strong and uniform decolorizing effect can be obtained, and a more sufficient foaming suppressing effect can also be obtained. The upper limit is preferably 3% by weight, and when it exceeds 3% by weight, the decolorizing effect and the foaming suppressing effect are less increased.

Further, Mg ²⁺ or C is dissociated in water.
The compound of at least one compound that generates a ²⁺ ion can be compounded in any one of the one-agent type and the three-agent type, but it is preferable to add other than the oxidizing agent aqueous solution from the viewpoint of decolorizing effect. .

In the present invention, Mg is dissociated in water and Mg
It is essential to contain at least one compound that produces ²⁺ or Ca ²⁺ ions,
By satisfying these conditions, a strong and uniform decolorizing effect can be obtained, and at the same time, a hair decolorizing agent having a stable viscosity in which foaming of the mixed solution is suppressed can be made possible.

The hair bleaching agent of the present invention contains hydrocarbons, waxes, animal and vegetable oils and fats, as long as the effects of the present invention are not impaired.
Natural or synthetic polymers, higher alcohols, higher fatty acids, organic solvents or penetration enhancers, polyhydric alcohols,
Esters, ethers, cationic surfactants, anionic surfactants, amphoteric surfactants, nonionic surfactants, silicones, protein derivatives and amino acids, preservatives, chelating agents, stabilizers, oxidation Inhibitors, various plant extracts, vitamins, dyes, fragrances, pigments, ultraviolet absorbers and the like can be appropriately added.

[0016]

EXAMPLES Next, the present invention will be described more specifically by way of examples, but the present invention is not limited to the description of the examples unless it exceeds the gist.

Prior to the examples, the test methods and evaluation methods adopted in the examples will be described.

Samples prepared on the basis of the bleaching test examples and comparative examples were used as the first agent / second agent.
The mixing ratio of agent / third agent is 8/13/5.
The mixture is applied to a bundle of human black hair, left at room temperature for 30 minutes, washed, dried, and then untreated with a spectrophotometric colorimeter after treatment of untreated human white hair and human black hair and decolorization treatment. The corresponding lightness was obtained for each of the hairs and the decolorization rate (%) calculated according to the following formula was measured. The evaluation criteria are as follows. x: Corresponding lightness of human white hair y: Corresponding lightness of human black hair z: Corresponding lightness of decolorization treated hair <Evaluation criteria> ○: Good decolorization rate of 25% or more △: Normal decolorization rate of 10% or more, Less than 25% ×: Poor Decolorization rate less than 10%

Samples prepared according to the usability test examples and comparative examples were used as the first agent / second agent.
The mixing ratio of agent / third agent is 8/13/5.
Usability such as viscosity during use was observed by 20 test subjects. The evaluation criteria are as follows. <Evaluation Criteria> ◯: Good 15 or more subjects who answered that viscosity and fluidity were appropriate Δ: Normal 7 or more subjects and less than 15 subjects who answered that viscosity and fluidity were appropriate ×: Poor viscosity , Less than 7 subjects answered that fluidity is appropriate

Foam suppression test A sample prepared according to the examples and comparative examples was used as the first agent / second
The mixing ratio of agent / third agent is 8/13/5.
The time at which the mixed solution foamed and overflowed from the container at room temperature was evaluated. The evaluation criteria are as follows. <Evaluation Criteria> ◯: Good Time when the mixed solution overflows from the container is 60 minutes or more Δ: Normal Time when the mixed solution overflows from the container is 30 minutes or more and less than 60 minutes x: Time when the bad mixed solution overflows from the container Less than 30 minutes

Examples 1 to 3 and Comparative Examples 1 and 2 In Examples 1 to 3 and Comparative Examples 1 and 2, hair bleaching agents composed of the ingredients shown in Table 1 were prepared. All units in the table are% by weight. The respective decolorization test, usability test and foaming suppression test were evaluated, and the results are shown in Table 1.

[0022]

[Table 1]

As is clear from Table 1, the present invention was found to be a hair depigmenting agent having a stable and viscous property, which has a strong and uniform decolorizing effect and which suppresses foaming of the mixed solution.

Example 4 (First Agent) Weight% Stearyl alcohol 4.00 Liquid isoparaffin 10.00 Liquid paraffin 5.00 Methyl polysiloxane 2.00 Methyl phenyl polysiloxane 3.00 Nonionic surfactant 6.00 Stearyl trimethyl ammonium chloride 2.45 Jojoba oil 0.10 Fragrance Suitable amount Tetrasodium edetate tetrahydrate 0.50 Dipotassium glycyrrhizinate 0.05 Hydrolyzed silk 0.10 Soy protein hydrolyzate 0.10 Mixed plant extract 0 10 Ammonia water (25%) 7.00 Make up to 100% with purified water. (Second agent) wt% Hydrogen peroxide water (35%) 16.60 Hydroxyethanediphosphonic acid (60%) 0.20 Phosphate 0.35 Make up to 100% with purified water. (Third agent)% by weight Potassium persulfate 60.70 Ammonium persulfate 11.40 Sodium persulfate 6.30 Silicic anhydride 2.30 Disodium edetate 0.80 Anhydrous sodium metasilicate 13.00 Stearate 0.50 Light liquid isoparaffin 1.00 Magnesium sulfate 4.00 Total 100.00 Using the three-component hair bleaching agent of the above composition, the first agent / second agent /
The third agent is mixed at a mixing ratio of 8/15/3. Similar to Example 1, excellent results were obtained in the decolorization test, usability test, and foaming suppression test.

Example 5 (First agent) wt% potassium persulfate 57.70 ammonium persulfate 11.40 sodium persulfate 6.30 silicic anhydride 2.30 disodium edetate 0.80 anhydrous sodium metasilicate 13.00 Stearate 0.50 Light liquid isoparaffin 1.00 Calcium chloride 4.00 Hydroxypropyl methylcellulose 3.00 Total 100.00 (second agent) wt% Cetanol 1.30 Sodium cetyl sulfate 0.60 Propylene glycol 10.00 Phenacetin 0.04 Hydrogen peroxide solution (35%) 16.60 Phosphate 0.35 Make up to 100% with purified water. The two-component hair bleaching agent having the above composition is used, and the mixing ratio of the first agent / second agent is 3/10. Similar to Example 2, excellent results were obtained in the decolorization test, usability test, and foaming suppression test.

Example 6 wt% propoxymethylcellulose 10.00 Sodium percarbonate 89.00 Magnesium nitrate 1.00 Citric acid Appropriate amount Using a one-part hair bleaching agent of the above composition, the mixing ratio of this product / water is 6/100. To mix. Similar to Example 2, excellent results were obtained in the decolorization test, usability test, and foaming suppression test.

The hair bleaching agent of the present invention dissociates in water,
At least one that produces Mg ²⁺ or Ca ²⁺ ions
By containing various kinds of compounds, a strong and uniform decolorizing effect can be obtained, and further, an effect of suppressing foaming of the mixed liquid and an effect of excellent viscosity stability are obtained.

Continued front page    F-term (reference) 4C083 AA122 AB082 AB172 AB272                       AB282 AB312 AB341 AB342                       AB361 AB362 AB412 AC022                       AC072 AC122 AC242 AC302                       AC532 AC642 AC692 AC782                       AC892 AD152 AD262 AD282                       AD412 AD452 AD532 CC35                       DD06 EE01 EE07 EE27

Claims (2)

[Claims] 1. Dissociation in water to form Mg ²⁺ or Ca
Hair bleaching agent, characterized in that it contains at least one compound that produces ²⁺ ions. 2. Mg²⁺The compound that produces ions is Mg
SO_Four, MgCl_Two, MgBr_Two, Mg (NO_Three)_Two,
Ca²⁺The compound that produces ions is CaCl _Two, CaB
r_Two, CaI_TwoThe method of claim 1 selected from the group consisting of
Hair bleaching agent.