JPH09131213A - Hair processing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely fix and hold the waves of hair and the straightening of curly hair, to remove the smell of a first agent and to prevent the damage of the hair by applying hair processing liquid to the hair after applying a second agent for wave attaching permanent, chemically activating the oxidation power of the second agent and improving a processing effect. SOLUTION: After applying the second agent for the wave attaching permangent and for curly hair correction, the hair processing liquid is applied and the oxidation power of sodium bromate which is the component of the second agent is activated. In such a manner, since the oxidation power of the sodium bromate which is the component of the second agent is activated accompanying pH decline by phosphoric acid which is the component of the hair processing liquid, the processing effect is improved, the re-bonding of cysteine bonding insufficient just by the second agent and the decomposition of the smell of the first agent remaining on the hair become complete, the gloss and shape of the finished hair are fixed and kept for the long period of time and the damage of the hair is prevented as well.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair treatment method capable of efficiently performing a wave permanent treatment, a hair straightening treatment, and an acid dye treatment in a short time.

[0002]

Conventionally, sodium bromate has been used as the main agent of the second agent for waving perms and hair straightening for hair treatment, but the cystine bond of the hair reduced and cleaved by the first agent is used. The oxidizing power was insufficient to completely oxidize and recombine. Further, in the case of treating the hair with an acidic dye, the dye for dyeing the hair with the acidic dye, which is the main ingredient, was insufficient.

[0003]

DISCLOSURE OF THE INVENTION The present invention solves the conventional problems as described above, and in the waving perm and straightening of curly hair, the purpose of the treatment is to waive the hair and straighten the curly hair. The acid dye, which is the main agent of the acidic hair dye in acid dyes, can secure the fixing and holding of the effect, eliminate the odor of the first agent that remains on the hair after treatment, and prevent the occurrence of damage to the hair. It was completed for the purpose of increasing the dyeability of the hair.

[0004]

The hair treatment method of the present invention, which has been made to solve the above-mentioned problems, is applied to the hair after the second agent for waving perm and for curly hair straightening is applied to the second hair. It activates the oxidizing power of sodium bromate, which is a component of the agent. Alternatively, it is characterized in that it is applied to the hair after application of the acidic hair dye to activate the dyeing power of the oxidative dye which is a component of the oxidative hair dye and enhance the treatment effect.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, what is applied to the hair after application of the second agent for waving or straightening hair or after application of the acidic hair dye is called a hair treatment liquid. When the hair treatment liquid is applied to the hair after the application of the second agent for wave permanent or curly straightening, the oxidizing power of sodium bromate, a component of the second agent, decreases the pH due to phosphoric acid, a component of the hair treatment solution. Since it is activated along with it, the treatment effect is improved, and the re-bonding of cystine bonds, which was insufficient with the second agent alone, and the decomposition of the odor of the first agent remaining on the hair was completely eliminated, and Fixing and holding gloss and shape last for a long time,
Hair damage is also prevented. On the other hand, when the hair treatment liquid is applied to the hair after the application of the acidic hair dye, the dyeing property of the acidic dye, which is a component of the acidic hair dye, is activated along with a decrease in pH due to phosphoric acid, which is a component of the hair dye, and thus the treatment effect. And an excellent hair dyeing effect is obtained as compared with the case of using the acidic hair dye alone.

[0006]

EXAMPLES Next, the treatment effect when the hair treatment method of the present invention is applied to waving perms and straightening hair will be described in detail chemically. When phosphoric acid is added to an aqueous solution of sodium bromate, which is the main agent of the second agent for perming on hair and straightening hair, the hydrogen ion concentration in the aqueous solution rises, the pH decreases and the liquidity becomes acidic, and bromine is added. A part of sodium acid salt becomes bromic acid. This bromic acid has much stronger oxidative power than sodium bromate, and oxidatively re-bonds to cystine bonds in hair that could not be oxidatively re-bonded by the oxidative power of sodium bromate alone. Generally, it is difficult to completely treat the second agent, and as a result, oxidative recombination is incomplete, and the hair is left with the cystine bond left open. Components such as amino acids and proteins inside the hair flow out from the portion during shampooing, which has been a cause of damaged hair. The present invention solves this problem.

When phosphoric acid is added to an aqueous solution of an acidic dye, which is the main ingredient of an acidic hair dye, the hydrogen ion concentration in the aqueous solution rises and the pH decreases, making the liquid acidic, and a part of the acidic dye This gives rise to colored acids, which are much more dyeable to the hair than the acid dyes themselves. Therefore, the hair dyeing treatment effect is improved.

Furthermore, in order to prevent the pH of the hair treatment liquid from becoming too low due to phosphoric acid, which is a component of the hair treatment liquid used in the present invention, ammonium dihydrogen phosphate or the like is added as a pH buffering agent. , The acidity is relieved without the pH being extremely lowered, and the hair treatment agent can be used without any trouble.

The components of the hair treatment liquid used in the present invention are shown below. Ingredient name Ammonium dihydrogen phosphate 10.00 Phosphoric acid 2.89 Cetanol 2.07 Polyoxyethylene oleyl ether 0.52 Polyoxyethylene lauryl ether (25 E.o.) 0.30 Liquid paraffin 0.20 Sodium lauryl sulfate 0 .18 Mink oil 0.10 Oil-soluble shikon extract 0.10 Perfume 0.10 Paraoxybenzoic acid ester 0.05 Sorbitan monooleate 0.04 Oleic acid 0.01 Guiaazulen 0.01 Jojoba oil 0.01 Sorbic acid 0026 Hydroxylation Sodium 0.0011 Purified water is added to bring the total amount to 100%. As shown above, phosphoric acid, which is the active ingredient after hair treatment,
Of course, in addition to ammonium dihydrogen phosphate, which is a pH buffering agent, surfactants, oils and fats, natural animal and plant extracts, preservatives, fragrances, ultraviolet absorbers and the like may be added, if necessary.

As is clear from the above description, the present invention is a hair treatment method capable of further enhancing the treatment effects of waving perms, straightening of hair, acid dyeing and the like, and the industrial development. Is extremely large.

Claims (3)

[Claims] 1. A hair treatment method comprising applying to a hair after application of a second agent for a wave permanent to chemically activate the oxidizing power of the second agent to enhance the treatment effect. 2. A hair treatment method comprising applying to a hair after the application of a second agent for straightening curly hair to chemically activate the oxidizing power of the second agent to enhance the treatment effect. 3. A hair treatment method, which comprises applying to the hair after the application of the acidic hair dye to chemically activate the dyeing power of the acidic hair dye to enhance the treatment effect.