JP2013035787A - Method for hair treatment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for hair treatment forming a wave design in a hair in which a straight design is formed with less damage to the hair, capable of carrying out with a simple device, and adaptable for any length of hair.SOLUTION: The invention includes steps of : (I) coating hair with a first agent containing a reducing agent and an alkali agent; (II) forming the straight design in the hair coated with the first agent; (III) moistening at least a part of the hair formed with the straight design using water and/or an aqueous composition not having reducibility and oxidizability; (IV) forming the wave design in at least a part of the moistened hair; and (V) coating a second agent containing an oxidant on a part of the hair on which the first agent is coated.

Description

  The present invention relates to a hair treatment method for further wave designing a straight designed hair.

  In order to make curly hair straight hair or to gloss the hair, hair straightening is performed. Hair straightening is performed by applying a first agent containing a reducing agent and an alkaline agent to the hair, forming a straight design on the hair with a hair iron, and then applying a second agent containing an oxidizing agent to the hair. It has been broken. Although the straightening treatment can improve the habit of the hair and make the hair gloss, the hairstyle formed by the straightening treatment is limited to the hairstyle that is straight from the root of the hair to the tip of the hair. . However, along with the trend of hairstyles, it is required to improve the habit and gloss of the hair, to give the hair tips movement, and to form waves on the hair.

  In order to meet the demands of such customers, it is desirable to form a wave design on hair with a straight design. Here, the disulfide bond, which is a side chain bond of the keratin protein in the hair, is cleaved by the action of the first agent containing a reducing agent, and the hair becomes ready for designing. However, in order to form a straight design on the hair, it has been thought that if a hair curling iron is used on the hair after application of the first agent, recombination of disulfide bonds may be performed. Therefore, in order to form a wave design after treating the hair with a straight hair iron, the first agent was re-applied to the hair in order to break the recombined disulfide bond. After that, wave formation was performed using a curling iron used for normal wave formation and a rod that can be energized (see, for example, Patent Document 1 and Patent Document 2).

  However, in the above method, even if it is possible to form a desired hairstyle, damage to the hair was significant by applying the first agent twice. In addition, a rod that can be energized requires a large apparatus, a long processing time, a narrow selection of rods, and is unsuitable for use in a short hairstyle.

JP 2002-356410 A JP 2004-262798 A

  The present invention relates to a hair treatment method for forming a wave design on hair having a straight design, the hair treatment method having little damage to the hair and capable of being performed with a simple apparatus and applicable to hair of any length. The purpose is to provide. Furthermore, it is related with the 1st agent and aqueous composition which are used in the said hair treatment method.

The present invention relates to the following [1] to [14], for example.
[1] (I) applying a first agent containing a reducing agent and an alkaline agent to the hair;
(II) forming a straight design on the hair coated with the first agent;
(III) moistening at least a part of the hair with the straight design using water and / or an aqueous composition having no reducing and oxidizing properties;
(IV) forming a wave design on at least a portion of the wet hair;
(V) A hair treatment method comprising: applying a second agent containing an oxidant to a portion of the hair to which the first agent is applied in this order.
[2] The hair treatment method according to [1], wherein the aqueous composition contains at least one selected from the group consisting of a humectant, an oil, a silicone, a polymer, and a CMC lipid.

[3] The reducing agent contained in the first agent is at least one selected from the group consisting of thioglycolic acid, thioglycolic acid salts, cysteine, cysteine salts, cysteamine and cysteamine salts, The hair treatment method according to [1] or [2], wherein the agent contains 1.5 to 11% by weight of the reducing agent and has a pH of 7.0 to 9.3.
[4] The reducing agent contained in the first agent is cysteamine and / or a salt of cysteamine, the first agent contains 1.5 to 11% by weight of the reducing agent, and has a pH of 7.0 to 9.3. The hair treatment method according to any one of [1] to [3], wherein
[5] The reducing agent contained in the first agent is at least one selected from the group consisting of cysteamine and cysteamine salts, thioglycolic acid, thioglycolic acid salts, cysteine and cysteine salts; The reducing agent 2 is at least one selected from the group consisting of the following: the first agent comprises the reducing agents 1 and 2 as reducing agent 1: reducing agent 2 = 1: 0.03 to 1: 1. [1] to [3], characterized in that the total amount of reducing agents 1 and 2 is 1.5 to 7% by weight and has a pH of 7.0 to 9.3 with respect to the first agent. The hair processing method as described in any one of these.

[6] In the step (IV), the wave design is formed by leaving the hair wound around the rod for 1 to 15 minutes at a temperature of 40 to 60 ° C. and a humidity of 70 to 100%. The hair treatment method according to any one of [1] to [5].
[7] The step (II) includes an operation of forming a straight design while heating the hair, and the step (III) includes water and / or reducing property on at least a part of the hair on which the straight design is formed. And the hair treatment method according to any one of [1] to [6], which is a step of applying an aqueous composition having no oxidizing property.
[8] The step (II) is a step of forming a straight design on the hair without heating, and the step (III) is a step of washing the hair on which the straight design is formed with water. The hair treatment method according to any one of [1] to [6].
[9] The step (II) is a step of forming a straight design on the hair without heating, and the step (III) is for washing at least a part of the hair after washing the hair with the straight design. The hair treatment method according to any one of [1] to [6], which is a step of applying an aqueous composition having no reducing and oxidizing properties.

[10] The hair treatment according to any one of [1] to [7], wherein in the step (II), a straight design is formed using a hair iron for straightening at 60 to 220 ° C. Method.
[11] Thioglycolic acid, thioglycolic acid salts, cysteine, cysteine salts, cysteamine and cysteamine salts are contained in an amount of 1.5 to 11% by weight, and the pH is 7.0 to 9. The first agent used in the hair treatment method according to [1], wherein the first agent is 3.
[12] The first agent used in the hair treatment method according to [1], containing 1.5 to 11% by weight of cysteamine and / or a salt of cysteamine and having a pH of 7.0 to 9.3.

[13] At least one selected from the group consisting of reducing agent 1, which is at least one selected from the group consisting of cysteamine and cysteamine salts, and thioglycolic acid, thioglycolic acid salts, cysteine, and cysteine salts The reducing agent 2 is added in a weight ratio of reducing agent 1: reducing agent 2 = 1: 0.03 to 1: 1, and the total amount of reducing agents 1 and 2 is 1.5 to 7 weights with respect to the first agent. 1st agent used for the hair processing method as described in [1] characterized by being contained by% and having pH 7.0-9.3.
[14] The aqueous composition used for the hair treatment method according to [1], comprising at least one selected from the group consisting of a humectant, an oil, a silicone, a polymer, and a CMC lipid.

  According to the hair treatment method of the present invention, it is possible to form a long-lasting and excellent straight design on the hair, and it is possible to form a long-lasting and excellent wave design on the hair formed with the straight design. . Further, according to the hair treatment method of the present invention, damage to the hair is suppressed, the touch of the hair is not impaired, and the gloss is given to the hair. Furthermore, the hair treatment method of the present invention can be wave-formed using a rod that does not require energization, can be carried out with a simple apparatus, and can be applied to hair of any length.

Hereinafter, the present invention will be specifically described.
The present invention
(I) applying a first agent containing a reducing agent and an alkaline agent to the hair;
(II) forming a straight design on the hair coated with the first agent;
(III) moistening at least a part of the hair with the straight design using water and / or an aqueous composition having no reducing and oxidizing properties;
(IV) forming a wave design on at least a portion of the wet hair;
(V) A hair treatment method comprising a step of applying a second agent containing an oxidizing agent to a portion of the hair to which the first agent is applied in this order.

(I) The process of apply | coating the 1st agent containing a reducing agent and an alkaline agent to hair In process (I), a 1st agent is apply | coated to hair. The first agent cleaves the disulfide bonds, hydrogen bonds, and ionic bonds of the side chain bonds of the hair keratin protein to enable hair design.

  Examples of the reducing agent used in the first agent used in the present invention include, without limitation, reducing agents that can be used for ordinary permanent wave treatment or curling treatment, and salts of thioglycolic acid and thioglycolic acid. Cysteine, cysteine salts, cysteamine and cysteamine salts are preferably selected from the group consisting of cysteamine and cysteamine salts, and cysteamine and cysteamine salts are more preferable from the viewpoint of wave and straight forming ability and prevention of hair damage. . Examples of the salts include hydrochloride, citrate, hydrobromide, acetate, ammonium salt, monoethanolamine salt and the like.

  The reducing agent is preferably 1.5 to 11% by weight based on the first agent, from the viewpoint of the ability to form waves and straights and the state of the hair after hair treatment. Moreover, the 1st agent is preferable from a viewpoint of the state of the hair after hair treatment and the formation power of a wave and a straight that it is pH 7.0-9.3. When at least one selected from the group consisting of cysteamine and cysteamine salts is used as the reducing agent, the first agent is compared to the first agent in terms of the ability to form waves and straights and the condition of the hair after hair treatment. It contains 1.5 to 11% by weight of a reducing agent and preferably has a pH of 7.0 to 9.3, and contains 1.5 to 7% by weight of a reducing agent with respect to the first agent, and has a pH of 7.0 to 9 .3, more preferably 1.5 to 4% by weight of reducing agent with respect to the first agent, and most preferably pH 7.5 to 8.5.

  Among them, from the viewpoint of wave and straight forming ability and prevention of hair damage, the first agent is at least one selected from the group consisting of cysteamine and cysteamine salts as the reducing agent, thioglycolic acid, thio A reducing agent 2 which is at least one selected from the group consisting of glycolic acid salts, cysteine and cysteine salts, in a weight ratio of reducing agent 1: reducing agent 2 = 1: 0.03 to 1: 1. In addition, the total amount of reducing agents 1 and 2 is 1.5 to 7% by weight with respect to the first agent, and the pH is 7.0 to 9.3, more preferably 7.5 to 8.5. preferable. When the reducing agent 2 is at least one selected from the group consisting of thioglycolic acid and thioglycolic acid salts, it is preferable in terms of wave and straight forming ability, and the reducing agent 2 is more preferable than the group consisting of cysteine and cysteine salts. Use of at least one selected from the viewpoint of preventing hair damage is preferable. From the viewpoint of achieving both wave and straight forming ability and prevention of hair damage, the first agent is at least one selected from the group consisting of reducing agent 1 and reducing agent 2 thioglycolic acid and thioglycolic acid salts. And reducing agent 1: reducing agent 2 = 1: 0.03 to 1: 0.6, and the total amount of reducing agents 1 and 2 is 1.5 to 4% by weight based on the first agent. In particular, it is particularly preferred that the pH is 7.0 to 9.3, more preferably pH 7.5 to 8.5, and that the first agent is reducing agent 1 and reducing agent 2 as cysteine and cysteine salts. At least one selected from the group consisting of: reducing agent 1: reducing agent 2 = 1: 0.03 to 1: 0.7, and the total amount of reducing agents 1 and 2 with respect to the first agent More preferably 1.5 to 4% by weight, pH 7.0 to 9.3, more preferred Particularly preferably is PH7.5～8.5.

  Although it does not restrict | limit especially as an alkaline agent used for a 1st agent, Ammonia, monoethanolamine, diethanolamine, 2-amino-2-methyl-1-propanol, arginine etc. are mentioned.

In addition to the above components, the first agent may contain an additive and a solvent.
Examples of additives include hydrolysates such as collagen and keratin and derivatives thereof, amino acids, pyrrolidone carboxylic acid derivatives, ceramide and similar substances, and hair protecting agents such as plant extracts;
Conditioning agents such as cationized cellulose, cationized guar gum, cationized resin, natural water-soluble polymers;
Oil agents such as alkylene carbonate, paraffin, liquid paraffin, beeswax, squalane, jojoba oil, olive oil, ester oil, triglyceride, petrolatum, lanolin;
Humectants such as glycerin, diglycerin, propylene glycol, dipropylene glycol, 1,3-butylene glycol, sorbitol;
Surfactants such as cationic surfactants, anionic surfactants, amphoteric surfactants and nonionic surfactants;
Silicon derivatives such as dimethylpolysiloxane, methylphenylpolysiloxane, amino-modified silicone oil;
Sequestering agents such as tetrasodium edetate tetrahydrate, pentasodium diethylenetriaminepentaacetate and their metal salts;
Thickeners such as carboxyethyl cellulose, xanthan gum, carboxyvinyl polymer, ethylene / acrylic acid copolymer, thickeners such as oil gelling agent or oil thickener;
Stabilizers such as ascorbic acid, erythorbic acid, edetate, etidronate, phenacetin, salicylic acid;
Preservatives such as parabens, sodium benzoate;
Deodorants such as sugarcane extract, tea extract and other plant extracts, catechins, tannins, cyclodextrins, enzymes;
Examples include hair nourishing agents, ultraviolet absorbers, pigments, pearl agents, and fragrances.

  Cationic surfactants include alkyltrimethylammonium chloride, lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, distearyldimethylammonium chloride, dicocoyldimethylammonium chloride, tri (polyoxyethylene) stearylammonium chloride ( Quaternary ammonium salts such as 5E.O.), di (polyoxyethylene) oleylmethylammonium chloride (2E.O.), lauryltrimethylammonium bromide, cetyltrimethylammonium bromide, stearyltrimethylammonium bromide; fatty acid amidoamine salts Alkyl cycloalkylene glycol ammonium salt; benzalkonium salt; benzethonium salt; pyridium salt; imidazolinium salt and the like.

  Examples of the anionic surfactant include alkyl sulfates such as sodium lauryl sulfate; POE alkyl / alkyl allyl ether sulfate such as polyoxyethylene (hereinafter referred to as POE) sodium lauryl ether sulfate and sodium POE nonylphenyl ether sulfate; N-acyl sulfonates; α-olefin sulfonates; alkane sulfonates; N-acyl amino acid salts; POE alkyl ether phosphates and salts thereof.

  Examples of amphoteric surfactants include betaine types such as lauryldimethylaminoacetic acid betaine; imidazoline types such as 2-undecyl-N, N, N- (hydroxyethylcarboxymethyl) -2-imidazoline sodium; amino acid types and the like.

  Nonionic surfactants include POE alkyl ethers; POE polyoxypropylene alkyl ethers; polyhydric alcohol fatty acid esters; glycerin fatty acid esters; polyglycerin fatty acid esters; sorbitan fatty acid esters such as sorbitan sesquioleate POE glycerin fatty acid esters; POE sorbitan fatty acid esters such as polyoxyethylene sorbitan monostearate (20E.O.); POE sorbite fatty acid esters; polyethylene glycol fatty acid esters; alkyl alkanolamides; POE hydrogenated castor oil; Pyroglutamic acid isostearic acid POE hydrogenated castor oil; POE ethylene lanolin; POE cholesterol; POE phytosterol; POE cholestanol; POE phytostano Le and the like.

As the solvent, water is usually used, and water that has undergone a purification step such as ion-exchanged water, distilled water, or purified water is preferred.
The first agent can be produced by appropriately stirring, mixing, heating, cooling, dissolving, dispersing (emulsifying) the above-described components by a known method. The dosage form of the first agent is not particularly limited, and examples thereof include liquid, lotion, cream, and aerosol dosage forms.
The amount of the first agent applied to the hair is usually 0.5 to 2.5 times that of the hair to be treated.
Different types of the first agent may be used for each part of the hair.

(II) Step of forming a straight design on the hair coated with the first agent In the present specification, forming a straight design on the hair means making the hair into a straight shape, mainly the internal structure of the hair. This is done for the purpose of correcting the distortion.

  After step (I), as an operation for forming a straight design on the hair, for example, after performing an operation of straightening the hair with a brush or the like without heating, the hair is usually kept at room temperature and humidity for 5 to 20 minutes. It can be left alone.

It is also preferable to form a straight design on the hair more reliably while heating the hair after washing the hair after the above operation. As an operation for forming a straight design while heating the hair, an operation for linearly tensioning the hair while heating using a dryer, or drying about 80% of the moisture of the hair using a dryer, An operation for linearly applying tension to the hair while heating with an iron is mentioned.
The temperature of the hair iron is preferably 60 to 220 ° C and more preferably 120 to 180 ° C from the viewpoint of achieving both straight elongation and suppression of hair damage.

(III) A step of moistening at least a part of the hair with the straight design using water and / or an aqueous composition having no reducing and oxidizing properties. In the step (II), the hair is heated without heating. When the straight design is formed, the hair is washed with water after the step (II), and the first agent is washed away from the hair. Alternatively, the hair is washed with water, the first agent is washed away from the hair, and then an aqueous composition having no reducing and oxidizing properties is applied to at least a portion where the hair is to be waved.

  When the step (II) includes an operation of forming a straight design while heating the hair, after step (II), water and / or reducing and oxidizing properties are present at least at the portion where the hair is to be wavy. Apply an aqueous composition that does not.

  In this way, the hair is washed with water, or water is applied to the hair, or an aqueous composition having no reducing and oxidizing properties is applied to the hair, or the hair is washed with water and then reduced and oxidized to the hair. The hair is moistened by applying an aqueous composition that does not have the property or by applying water to the hair and an aqueous composition that does not have reducing and oxidizing properties.

As water, tap water, distilled water, ion exchange water, natural water and the like can be used without limitation.
The aqueous composition having no reducing and oxidizing properties means an aqueous composition that does not correspond to the first agent and the second agent described later.

  Examples of the aqueous composition used in the present invention include a composition containing at least one selected from the group consisting of a humectant, an oil, a silicone, a polymer, and a CMC lipid in water. Examples of the humectant include, for example, ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, glycerin, diglycerin, 1,3-butylene glycol, erythritol, sorbitol, isoprene glycol, 1,2-pentanediol, 2,4 -Hexanediol, 1,2-hexanediol, 1,2-octanediol, examples of oils include, for example, isostearyl lactate, isopropyl myristate, myristyl myristate, stearyl stearate, isostearyl laurate, Cetyl isooctanoate, octyldodecyl oleate, hexyl 2-ethylhexanoate, di-2-ethylhexyl succinate, dioctyl succinate, phytosteryl isostearate, isononate isononanoate Esters such as oil; oils such as shea fat, wheat germ oil, rice bran oil, macadamia nut oil, meadow home oil, egg yolk oil; candelilla wax, microcrystalline wax, jojoba oil, beeswax, carnauba wax, light isoparaffin, light liquid isoparaffin, Hydrocarbons such as squalane, ceresin, paraffin, liquid paraffin, liquid isoparaffin, petroleum jelly and the like can be mentioned. Examples of silicone include aminoethylaminopropylsiloxane / dimethylsiloxane copolymer (amodimethicone), aminopropylmethylsiloxane / Amino-modified silicone such as dimethylsiloxane copolymer (aminopropyl dimethicone), dimethicone, cyclomethicone, low viscosity dimethylpolysiloxane, highly polymerized methylpolysiloxane, cyclic dimethicone Siloxane (decamethylcyclopentasiloxane), methylphenylpolysiloxane, silicone rubber, cation-modified polysiloxane, polyether-modified polysiloxane, fluorine-modified polysiloxane and the like. Examples of polymers include cationized polymers, In particular, cationized cellulose (such as O- [2-hydroxy-3- (trimethylammonio) propyl] hydroxyethylcellulose chloride), cationized guar gum (such as guar hydroxypropyltrimonium chloride), cationized starch, dimethyldiallylammonium chloride / acrylamide Copolymer, dimethyldiallylammonium chloride / acrylic acid copolymer, and the like. Examples of CMC lipids include lauroylglutamate di (phytosteryl / octyldede). Syl), isoalkyl (C10-40) amidopropylethyldimonium etosulphate, cholesterol, ceramide and the like. Among these, glycerin and 1,3-butylene glycol are preferable as the humectant, isostearyl lactate and isopropyl myristate are preferable as the oil, and aminoethylaminopropylsiloxane / dimethylsiloxane copolymer as the silicone, Highly polymerized methylpolysiloxane is preferred, and the polymer is preferably a cationized polymer, particularly dimethyldiallylammonium chloride / acrylic acid copolymer, guar hydroxypropyltrimonium chloride, and the CMC lipid is lauroylglutamate di (phytosteryl / octyldodecyl). ), Isoalkyl (C10-40) amidopropylethyldimonium etosulphate is preferred.

  At least one selected from the group consisting of the humectant, oil, silicone, polymer, and CMC lipid is a humectant that is added to the entire aqueous composition from the viewpoint of the feel and gloss of the hair after hair treatment. The oil content is preferably 0.01 to 10% by weight, and the oil content is preferably 0.01 to 10% by weight with respect to the entire aqueous composition, and the silicone is 0.01 to 10% with respect to the entire aqueous composition. 5% by weight is preferably contained, the polymer is preferably contained in an amount of 0.01 to 5% by weight based on the whole aqueous composition, and the CMC lipid is contained in an amount of 0.01 to 3% based on the whole aqueous composition. It is preferable to be contained by weight%.

When the aqueous composition is applied to the hair, the gloss and feel of the hair after the hair treatment is good, and when CMC lipid is used, the sustainability of the wave is also improved.
The aqueous composition may contain additives in addition to the above components.

  Examples of additives include cationic surfactants such as cetyltrimethylammonium chloride and stearyltrimethylammonium bromide, nonionic surfactants such as polyoxyethylene alkyl ether and polyoxyethylene hydrogenated castor oil, and lauryldimethylaminoacetic acid betaine. Amphoteric surfactants such as hydroxyethyl cellulose, polymer thickeners such as sodium polyacrylate, organic acids such as higher alcohols, higher fatty acids, citric acid and their salts, bactericides, UV absorbers, antioxidants, coloring Agent, fragrance, solvent such as ethanol, fine particle powder, aerosol propellant and the like.

As water used in the aqueous composition, tap water, distilled water, ion-exchanged water, natural water and the like can be used without limitation.
The aqueous composition can be produced by appropriately stirring, mixing, heating, cooling, dissolving, dispersing (emulsifying) the above-described components by a known method. The dosage form of the aqueous composition is not particularly limited, and examples thereof include liquid forms, lotion forms, cream forms, and aerosol forms.

The amount of water or the aqueous composition applied to the hair is usually 0.5 to 2.5 times that of the hair to be treated.
The effects obtained by washing the hair with water and / or moistening the hair by applying water or an aqueous composition having no reducing and oxidizing properties to the hair are considered as follows. The side chain bonds of hair keratin proteins include disulfide bonds, ionic bonds and hydrogen bonds. After the first agent is applied to the hair and washed with water, when the hair is heat-treated with a drier, a hair iron or the like, the moisture of the hair is evaporated and the hair is dried. As a result, hydrogen bonds are considered to be recombined in a considerable proportion among the side chain bonds, and this recombined hydrogen bond hinders waving hair after straight design. Conceivable. Therefore, after forming a straight design on the hair, washing the hair with water or supplementing the hair with water or an aqueous composition will break the hydrogen bond again, so that the hair can be waved. It is thought that I did. In addition, it is thought that the disulfide bond is not recombined to the extent that the wave formation is hindered by heat treatment such as a hair iron.

  Furthermore, the CMC lipid contained in the aqueous composition is thought to play a role in supplementing CMC lipid that has been lost from the hair. Because the CMC lipid contained in the aqueous composition instead of the original CMC of the hair is supplemented to the hair, the touch and gloss of the hair are improved, and when the hair is heated, the cortex can move flexibly. It is thought that it becomes easy to wave-form hair and damage to the hair can be prevented.

(IV) Step of forming a wave design on at least a part of the wet hair In this specification, the wave design includes a clear wave to a design in which the hair tip is simply moved.

After step (III), a wave design is formed on at least part of the wet hair.
As an operation for forming a wave design, an operation for winding hair around a rod can be mentioned. The rod does not need to be in a form that can be energized, and rods having various diameters used for normal permanent wave processing can be used.

  After performing the operation of winding the hair around the rod, it is preferable to leave the hair at a temperature of 40 to 60 ° C. and a humidity of 70 to 100% for 1 to 15 minutes, and a temperature of 40 to 60 ° C. and a humidity of 70 to 100% of 3 to 3. It is more preferable to leave it for 15 minutes. Under such conditions, it is considered that the recombination of the hydrogen bond of the side chain bond of the hair keratin protein does not proceed easily, and the cortex can be kept flexible.

(V) A step of applying a second agent containing an oxidant to the portion of the hair to which the first agent has been applied. After step (IV), only a straight design is formed in the hair, and a wave design. A 2nd agent is apply | coated to all of the location in which was formed. That is, a 2nd agent is apply | coated to the location where the 1st agent was apply | coated in process (I) in hair.

This step ensures the recombination of the disulfide bonds of the side chain bonds of the hair keratin protein, and the formed design can be maintained.
Examples of the oxidizing agent contained in the second agent include, without limitation, oxidizing agents that can be used for normal permanent wave treatment or curling treatment, and examples thereof include hydrogen peroxide and bromate.

The second agent may contain an additive and a solvent in addition to the oxidizing agent.
The amount of the second agent applied to the hair is usually 0.5 to 2.5 times that of the hair to be treated.
Two or more types of the second agent may be used, such as using different second agents depending on where the straight design of the hair is formed and where the wave design is formed.

  After the second agent is applied to the hair, the hair is usually left at room temperature and normal humidity for 5 to 15 minutes, then washed with water and dried.

EXAMPLES Hereinafter, although this invention is demonstrated further more concretely based on an Example, this invention is not limited to these Examples.
The hair treatment of Examples and Comparative Examples was performed as follows.

[Hair Treatment of Examples 1-39]
About 1 g of hair of the same person with strong hair of about 20 cm and no chemical treatment history is placed in a solution containing 95 g of hot water at 60 ° C., 3.3 g of 35% hydrogen peroxide solution and 1.7 g of 28% ammonia water for 10 minutes. After soaking, it was washed with water and dried, and then a hair bundle was prepared (this hair bundle is called “hair before treatment”). After applying 1g of the first agent to the hair bundle and straightening the hair with a hairbrush, leave it at room temperature for 15 minutes, then wash it thoroughly with water and dry it with a dryer for about 80%. I let you. Next, the operation of holding the hair bundle with a straight hair iron (product name B ² y manufactured by TOM Co., Ltd.) set at 160 ° C. and moving the hair iron from the root of the hair bundle to the tip of the hair in 5 seconds 3 A straight design was formed on the hair by performing the treatment once. Then, after applying water to about 10 cm of the part where the wave design of the obtained hair bundle is to be formed, the hair bundle is made of a rod (product name: New Everrod Y-type Y-3 (center diameter: 17 mm), manufactured by Evermate Co., Ltd. ) And left at room temperature and humidity for 10 minutes. Immediately after standing, 1 ml of the second agent listed in Table 2 is applied to the part where the rod of the hair bundle is wound, and 1 g of the second agent listed in Table 3 is applied to the other part and allowed to stand at room temperature for 15 minutes. After sufficiently washing with water, it was sufficiently dried with a drier to prepare a sample after hair treatment.

[Hair Treatment of Example 40]
Instead of using a hair curling iron for straightening, after straightening the hair with a hairbrush, leave it at room temperature for 15 minutes, then wash the hair bundle with water and heat it using a dryer. Except that the tension was applied linearly to the hair, the same treatment as in Example 20 was performed using the same first agent as in Example 20 to obtain a sample after the treatment.

[Hair Treatment of Examples 41 to 50]
Treatment similar to Example 20 using the same first agent as in Example 20 except that the aqueous composition described in Table 10 was applied instead of water to a portion of about 10 cm where the wave design of the hair bundle was to be formed. The sample after the treatment was used.

[Hair Treatment of Examples 51 to 56]
Example 20 using the same first agent as Example 20 except that the hair bundle was wound around the rod and left for 10 minutes at room temperature and humidity for 10 minutes under the conditions shown in Table 11. The same treatment was performed as a sample after the treatment.

[Hair Treatment of Comparative Examples A-1 to A-21]
After a straight design is formed on the hair bundle in the same manner as in Example 1, the first agent is applied again to about 10 cm where the wave design is to be formed, left at room temperature for 10 minutes, and the hair bundle is washed thoroughly with water. Lightly wiped off the water. Next, it is wound around a rod (product name: 18mm ODIS rod manufactured by Daihiro Seisakusho Co., Ltd.) that can be heated by energization at the location where the first agent of the hair bundle is re-applied and heated to 110 ° C for 10 minutes. I left it alone. Immediately after standing, 1 ml of the second agent listed in Table 2 is applied to the part where the rod of the hair bundle is wound, and 1 g of the second agent listed in Table 3 is applied to the other part and allowed to stand at room temperature for 15 minutes. After sufficiently washing with water, it was sufficiently dried with a drier to prepare a sample after hair treatment.

[Hair Treatment of Comparative Examples B-1 to B-21]
After forming a straight design on the hair bundle in the same manner as in Example 1, apply the first agent again to the area where the wave design is to be formed, and leave it at room temperature for 10 minutes. And dried about 80%. Next, wrap around the rod part of curling hair iron (product name: DH-CERAMIC16 (diameter: 16mm) manufactured by Trico Industries Co., Ltd.) at 160 ° C where the first part of the hair bundle was re-applied and heat-treated for 5 seconds. did. Immediately after the treatment, 1 ml of the second agent listed in Table 2 is applied to the part where the rod of the hair bundle is wound and 1 g of the second agent listed in Table 3 is applied to the other part and left at room temperature for 15 minutes. After sufficiently washing with water, it was sufficiently dried with a drier to prepare a sample after hair treatment.

[Hair Treatment of Comparative Examples C-1 to C-21]
After the straight design is formed on the hair bundle in the same manner as in Example 1, the first agent is applied again to about 10 cm where the wave design is to be formed, and the portion where the first agent of the hair bundle is re-applied is wound around the rod. And left at room temperature for 10 minutes. Then, after washing the hair bundle thoroughly with water and lightly wiping off the moisture of the hair, immediately apply 1 ml of the second agent listed in Table 2 to the portion where the rod of the hair bundle is wound, and the second agent listed in Table 3 to the other portions. 1 g of the sample was applied and allowed to stand at room temperature for 15 minutes, and then the hair bundle was sufficiently washed with water and then sufficiently dried with a drier to prepare a sample after hair treatment.
In the examples and comparative examples, the following were used as the first agent.

実施例および比較例において第２剤は以下のものを用いた。

In the examples and comparative examples, the following were used as the second agent.

  The 2nd agent of Table 2 was applied to the part currently wound around the rod of hair. The 2nd agent of Table 3 was applied to the part which has not wound the rod of hair.

評価には処理した毛髪を用い、専門テスター（美容師）により各評価項目につき、以下の基準に基づいて評価を行った。

The treated hair was used for evaluation, and each evaluation item was evaluated based on the following criteria by a professional tester (beautician).

1. Wave forming ability By visually observing the hair of the sample, the degree of wave formation was evaluated according to the following criteria.
◎ ◎ ◎: Wave is very well applied ◎ ◎: Wave is well applied ◎: Wave is applied ○: Wave is applied a little Δ: Wave is hardly applied ×: Wave is applied Absent

2. Wave persistence Sample hair was shampooed and treated 3 times a day, 5 times a total of 15 times, then towel-dried, then suspended and air-dried (the above series of treatments were washed below) Also called processing). The treated hair was visually observed and compared visually with a sample that was not washed, and the wave durability was evaluated according to the following criteria.
◎◎◎: Wave persistence is very good ◎◎: Wave persistence is better ◎: Wave persistence is good ○: Wave persistence is a little bad, but wave remains △: Wave Poor persistence ×: Wave persistence is very poor and no wave remains

3. Hair damage The hair bundle of the sample was observed using a scanning electron microscope (model name: JSM-6390LA, manufactured by JEOL Ltd.) to observe how the hair cuticle was lifted, and the degree of damage was evaluated. Specifically, a hair bundle is tied so that a knot can be formed on the wave-treated part, and the cuticle is lifted up on the curved surface of the knot when the knot is pulled under a certain condition, and the following criteria are used. evaluated.
◎◎◎: Very little damage to hair (hair cuticle is not lifted)
◎◎: Hair damage is very little (hair cuticle is hardly lifted)
A: Less hair damage (hair cuticle is slightly lifted)
○: Little damage to hair (the outermost layer of the hair cuticle is partially raised)
Δ: Slightly damaged hair (the outermost layer of the hair cuticle is generally lifted)
X: The hair is very damaged (most of the hair cuticles are raised)

4). Hair feel The feel (smoothness) of the hair of the sample due to the tactile sensation was compared with the feel of the hair before the treatment, and evaluated according to the following criteria.
◎ ◎ ◎: Hair feel better than before treatment ◎ ◎: Hair feel better than before treatment ◎: Hair feel better than before treatment ○: Hair feel better than before treatment △: The touch of the hair is poor. ×: The hair is stiff and sticky, and the touch of the hair is very bad.

5. Hair gloss By visual observation, the hair gloss of the sample was compared with the hair gloss before the treatment, and evaluated according to the following criteria.
◎◎◎: Hair is more glossy than before treatment ◎◎: Hair is glossy before treatment ◎: Hair is glossy without much treatment before treatment ○: Hair is inferior to that before treatment △: The hair is not very glossy ×: The hair is not glossy, has a crispness, and has a dustiness

6). Straight elongation By visually observing the part of the sample where the wave design of the hair was not formed, the elongation of the hair after the straight design was formed on the hair was evaluated according to the following criteria.
◎ ◎ ◎: The habit is growing very firmly ◎: The habit is growing firmly ◎: The habit is growing ○: The habit is not growing a little, but it is acceptable from the point of straight design formation △: Almost no habit stretched x: No habit stretched

7). Straightness Persistence The sample hair was shampooed and treated 3 times a day, 5 times a total of 15 times, then towel-dried, then suspended and air-dried (the above series of treatments were washed below) Also called processing). The wrinkle elongation of the portion where the wave design was not formed in the sample subjected to the cleaning treatment was visually compared with the wrinkle elongation of the portion where the wave design was not formed.
◎ ◎ ◎: The growth of hair comb is not different from that before washing treatment ◎ ◎: The elongation of hair comb is not much different from that before washing treatment ◎: The elongation of hair comb is slightly returned compared to before washing treatment However, it is an acceptable range from the point of straight design formation. ○: The hair habit is slightly different from that before washing treatment, but from the point of straight design formation, it is an acceptable range. Δ: Hair comb. Almost back compared to before washing treatment ×: Hair habit has returned

Claims (14)

(I) applying a first agent containing a reducing agent and an alkaline agent to the hair;
(II) forming a straight design on the hair coated with the first agent;
(III) moistening at least a part of the hair with the straight design using water and / or an aqueous composition having no reducing and oxidizing properties;
(IV) forming a wave design on at least a portion of the wet hair;
(V) A hair treatment method comprising: applying a second agent containing an oxidant to a portion of the hair to which the first agent is applied in this order.   The hair treatment method according to claim 1, wherein the aqueous composition contains at least one selected from the group consisting of a humectant, an oil, a silicone, a polymer, and a CMC lipid.   The reducing agent contained in the first agent is at least one selected from the group consisting of thioglycolic acid, thioglycolic acid salts, cysteine, cysteine salts, cysteamine and cysteamine salts, and the first agent is the above The hair treatment method according to claim 1 or 2, comprising 1.5 to 11% by weight of a reducing agent and having a pH of 7.0 to 9.3.   The reducing agent contained in the first agent is cysteamine and / or a salt of cysteamine, and the first agent contains 1.5 to 11% by weight of the reducing agent and has a pH of 7.0 to 9.3. The hair processing method as described in any one of Claims 1-3 characterized by these.   The reducing agent contained in the first agent is at least one selected from the group consisting of cysteamine and cysteamine salts, and the group consisting of thioglycolic acid, thioglycolic acid salts, cysteine and cysteine salts A reducing agent 2 which is at least one selected from the above, wherein the first agent comprises reducing agents 1 and 2 in a weight ratio of reducing agent 1: reducing agent 2 = 1: 0.03 to 1: 1, And the total amount of the reducing agents 1 and 2 is 1.5-7 weight% with respect to the said 1st agent, and it is pH 7.0-9.3, It is any one of Claims 1-3 characterized by the above-mentioned. The hair processing method as described in any one of Claims 1-3.   In the step (IV), the wave design is formed by leaving the hair wound around the rod for 1 to 15 minutes at a temperature of 40 to 60 ° C. and a humidity of 70 to 100%. Item 6. The hair treatment method according to any one of Items 1 to 5. The step (II) includes an operation of forming a straight design while heating the hair, and the step (III) includes water and / or reducing and oxidizing properties on at least a part of the hair on which the straight design is formed. It is a process of apply | coating the aqueous composition which does not have hair, The hair processing method as described in any one of Claims 1-6 characterized by the above-mentioned. The step (II) is a step of forming a straight design on the hair without heating, and the step (III) is a step of washing the hair on which the straight design is formed with water. The hair processing method as described in any one of 1-6. The step (II) is a step of forming a straight design on the hair without heating, and the step (III) is reducible to at least a part of the hair after washing the hair with the straight design formed in water. The hair treatment method according to claim 1, wherein the hair treatment method is a step of applying an aqueous composition having no oxidizing property.   In the said process (II), formation of a straight design is performed using a 60-220 degreeC straight hair iron, The hair processing method as described in any one of Claims 1-7 characterized by the above-mentioned.   It contains 1.5 to 11% by weight of at least one selected from the group consisting of thioglycolic acid, thioglycolic acid salts, cysteine, cysteine salts, cysteamine and cysteamine salts, and has a pH of 7.0 to 9.3. The 1st agent used for the hair treatment method of Claim 1 characterized by the above-mentioned.   The first agent used in the hair treatment method according to claim 1, comprising 1.5 to 11% by weight of cysteamine and / or a salt of cysteamine and having a pH of 7.0 to 9.3.   Reducing agent 2 which is at least one selected from the group consisting of cysteamine and at least one selected from the group consisting of cysteamine salts and thioglycolic acid, thioglycolic acid salts, cysteine and cysteine salts In a weight ratio of reducing agent 1: reducing agent 2 = 1: 0.03 to 1: 1, and the total amount of reducing agents 1 and 2 with respect to the first agent is 1.5 to 7% by weight. The first agent used in the hair treatment method according to claim 1, wherein the pH is 7.0 to 9.3.   The aqueous composition used in the hair treatment method according to claim 1, comprising at least one selected from the group consisting of a humectant, an oil, a silicone, a polymer, and a CMC lipid.