JP2014034543A - Treatment agent for hair deformation and treatment method for hair deformation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a treatment agent for hair deformation and a treatment method for hair deformation capable of forming waved hair and correcting curly hair by significantly reducing an amount of an oxidizing agent to be used or without substantially using an oxidizing agent.SOLUTION: There is provided a treatment agent for hair deformation which is used for hair treated by a first agent for hair deformation to deform hair without using an agent blended with 1.0 wt.% or more of an oxidizing agent and in which at least any one of dithiodiglycolic acid or a salt thereof is blended.

Description

  The present invention relates to a hair deformation treatment agent and a hair deformation treatment method.

  Conventionally, as a hair deformation treatment such as permanent wave treatment and curly hair straightening treatment, the first agent for hair deformation containing a reducing agent is used to reduce the cystine bond in the hair to obtain a desired shape, and then an oxidizing agent. The process which fixes the shape using the 2nd agent mix | blended with is known.

  Regarding such hair deformation treatment, for example, in Patent Document 1 below, in order to reduce damage to hair, a reducing agent and diammonium dithiodiglycolate may be included to constitute the first agent for hair deformation. Proposed.

  Moreover, in the following patent document 2, even if the reduction reaction by the first agent for deforming hair proceeds too much, the first agent for deforming hair is used so that the hair can be in an optimal softened state. It has been proposed to use a hair treatment composition containing dithiodiglycolic acid or a salt thereof immediately after the reduction treatment.

Japanese Patent Laid-Open No. 07-242522 JP 2008-31052 A

  However, the hair deformation treatment described in Patent Document 1 is based on the premise that hair is oxidized using an oxidizing agent after the hair is reduced by the first agent for hair deformation (see paragraph 0057). ).

  Also, in the hair deformation treatment described in Patent Document 2, after reducing the hair with the first agent for hair deformation, and further treating the hair with the hair treatment composition containing dithiodiglycolic acid or a salt thereof, It is assumed that the hair is oxidized with an oxidizing agent after being pressed with a high-temperature hair-styling iron (see paragraph 0046).

  As described above, in the conventional hair deformation treatment, it is assumed that the hair is oxidized using a sufficient amount of an oxidizing agent for fixing the deformation state of the hair, but if the amount of the oxidizing agent is sufficient, the hair There is a concern of overoxidation. In order to alleviate such a concern, it is sufficient to adopt a method or agent that can fix the deformed state of the hair without significantly reducing the amount of the oxidizing agent used or substantially using the oxidizing agent. No such method or agent has been proposed.

  The present invention has been made in view of the above-described circumstances, and the object thereof is to significantly reduce the amount of oxidant to be used, or to make wave formation or curly hair correction without substantially using an oxidant. The object is to provide a hair deformation treatment agent and a hair deformation treatment method.

  As a result of intensive investigations to enable the wave formation or hair straightening in the hair by the present inventors greatly reducing the amount of oxidizing agent to be used or substantially using no oxidizing agent, a reducing agent is blended. It has been found that it is significant to use a hair deformation treatment agent containing at least one of dithiodiglycolic acid or a salt thereof for hair treated with the first hair deformation agent thus prepared. It came to complete.

  That is, the hair deformation treatment agent according to the present invention is a first agent for hair deformation containing a reducing agent in order to perform hair deformation treatment without using an agent containing 1.0% by weight or more of an oxidizing agent. Used for hair treated with the above-mentioned formula, and at least one of dithiodiglycolic acid or a salt thereof is blended therein.

The hair deformation treatment agent is used for hair deformation treatment that is performed without using an agent in which the total amount of bromate, perborate and hydrogen peroxide is blended by 1.0% by weight or more. It is preferable that
Further, the hair deformation treatment agent preferably has a pH of 4 or more.
In the hair deformation treatment agent, the amount of dithiodiglycolic acid or a salt thereof is preferably 2.5 wt% or more.
Moreover, it is preferable that the treatment agent for hair deformation does not contain bromate, perborate and hydrogen peroxide.

  The hair deformation treatment method according to the present invention includes a first step of treating hair using a first agent for hair deformation mixed with a reducing agent, and after the first step, at least dithiodiglycolic acid or a salt thereof. A method of performing hair deformation treatment without using an agent containing 1.0% by weight or more of an oxidant, and a second step of treating the hair using a hair deformation treatment agent containing any of them. It is.

  Moreover, it is preferable that the hair deformation | transformation processing method performs a hair deformation | transformation process, without using the agent with which the sum total of bromate, perborate, and hydrogen peroxide was mix | blended 1.0 weight% or more.

  The hair deformation treatment method is preferably performed without using an agent containing at least one of bromate, perborate, and hydrogen peroxide.

  According to the present invention, it is possible to significantly reduce the amount of oxidant used or to form waves in hair or straighten hair without substantially using an oxidant.

The appearance of the hair after the hair deformation treatment of Reference Example 1 and Examples 3, 5, 6, 7, and 8 is shown. The appearance of the hair after the hair deformation treatment of Reference Example 1 and Examples 9, 10, 11, and 13 is shown. The external appearance of the hair after the hair deformation process of the reference example 2 and Example 17 is shown.

  Hereinafter, the hair deformation treatment method and the hair deformation treatment agent will be specifically described with examples, but these descriptions do not limit the invention.

  The hair deformation treatment agent of the present invention may be a permanent wave treatment method for imparting a wave shape to hair or a curly hair straightening treatment method for approximating a straight shape. More specifically, as a permanent wave treatment method, a so-called cold-type permanent wave treatment method for imparting a wave to hair at room temperature, a so-called warming-type permanent wave for imparting a wave to hair under heating. A processing method is mentioned. In addition, as a curly hair straightening treatment method, a so-called cold-type curly hair straightening treatment method for straightening and straightening curly hair at normal temperature, a so-called cold hair straightening treatment method for straightening straight hair under heating, so-called Examples thereof include a warming-type curly hair straightening treatment method and a warming-type curly hair straightening method using a high-temperature hair-styling iron.

(1) Hair deformation treatment method The hair deformation treatment method has the following first step and second step, and performs hair deformation treatment without using an agent containing 1.0% by weight or more of an oxidizing agent. How to do it. In the first step, the hair is treated using the first agent for deforming hair in which a reducing agent is blended. In the second step, after the first step, the hair is treated with a hair deformation treatment agent containing at least one of dithiodiglycolic acid or a salt thereof.

  The hair deformation treatment method is not particularly limited, but, for example, the hair is maintained in a desired shape before the first step in which the hair is treated using the first agent for hair deformation mixed with a reducing agent. It may be left. For example, the hair may be maintained in a desired shape by wrapping around a rod having a predetermined size or fixing the hair to a pin.

  The hair treatment performed between the first step and the second step of the hair deformation treatment method is not particularly limited, but for the purpose of forming a wave, it is applied to the hair to treat the hair in the first step. In order to treat the hair in the first step, the hair may be treated with the hair deforming treatment agent in the second step after the intermediate water washing in which the first hair deformation agent is washed away with water. In the state where the first hair deformation agent is still applied to the hair, the hair treatment using the hair deformation treatment agent in the second step may be performed without performing intermediate water washing. The intermediate water washing is not particularly limited. For example, the intermediate water washing may be performed using running water, and after washing with running water, a rinsing rinse (a sufficient amount for the amount of hair in a tank such as a shampoo table). Water may be stored and the hair rinsed therein).

  In the first step of the hair deformation treatment method, even if other treatment is performed before or after the second step, treatment with water washing or treatment agent for hair deformation is performed. It is preferable to wait for a predetermined time before the first agent for deforming hair is applied to the hair. For example, you may make it wait for the time length of 5 minutes or more and 15 minutes or less from the state which finished application | coating of the 1st agent for hair deformation with respect to hair.

  In the hair deformation treatment performed by the hair deformation treatment method, the hair is treated with the hair deformation treatment agent in order to fix the state of the hair from the state where the hair is treated with the first agent for hair deformation mixed with the reducing agent. After the treatment, the treatment is performed until the hair is washed and the hair becomes dry. In the hair deformation treatment, the hair may be dried immediately after the hair deformation treatment agent is washed away, but before the hair is dried, the hair is treated with another treatment agent and the other treatment is performed. The hair may be dried with or without washing away the agent. The hair drying here may be forced drying using a dryer or natural drying. In this case, while the hair deformation treatment is being performed, the hair treatment using an agent containing 1.0% by weight or more of the oxidizing agent is not performed.

  In addition, the fixation of the hair state does not need to be completed when the hair is treated with the hair deformation treatment agent, and the hair state fixation by the hair treatment using the hair deformation treatment agent is not It may be incomplete, and the degree of fixation of the hair is further advanced by oxidizing the hair with oxygen in the air after the hair has been treated with the first agent for deforming hair containing a reducing agent. It may be.

  The hair deformation treatment method is a method in which treatment of hair using an agent containing 1.0% by weight or more of an oxidizing agent is not performed while the hair deformation treatment is being performed. It is preferable that the hair is not treated with an agent containing 1.0% by weight or more of salt, perborate and hydrogen peroxide. It is more preferable that the hair is not treated using an agent containing a total of 0.5% by weight or more of hydrogen oxide, and at least one of bromate, perborate and hydrogen peroxide is used. It is particularly preferable that the hair is not treated using the blended agent. In addition, in the hair deformation treatment method in which the treatment of the hair using the agent containing 1.0% by weight or more of the oxidizing agent is not performed or the treatment of the hair using the agent containing the oxidizing agent is not performed, It is possible to suppress a decrease in the feel of the hair after finishing due to the oxidant remaining in the hair.

(2) First agent for hair deformation In the first step of the hair deformation treatment method, hair is treated using the first agent for hair deformation mixed with a reducing agent.

  Here, the reducing agent to be blended in the first hair deformation agent is not particularly limited, and examples thereof include thioglycolates such as thioglycolic acid and ammonium thioglycolate, cysteine, cysteine hydrochloride, and the like. Cysteine salts, cysteine derivatives such as N-acetylcysteine and cysteamine, thiosulfuric acid or a salt thereof, cysteamine or a salt thereof can be used alone or in combination. The blending amount of the reducing agent in the first hair deformation agent is not particularly limited. For example, it can be 1% by weight or more and 20% by weight in terms of active ingredient (in terms of thioglycolic acid or cysteine). % To 11% by weight, more preferably 3% to 8% by weight. By making the blending amount of the reducing agent in the first hair deforming agent 1% by weight or more, the cystine bond in the hair can be easily reduced, and the blending amount of the reducing agent in the first hair deforming agent is 20% by weight or less. By doing so, damage to the hair can be suppressed.

  Arbitrary components other than a reducing agent may be mix | blended with the 1st agent for hair deformation. As an arbitrary component in the 1st agent for hair deformation, the raw material made to mix | blend with the 1st agent for hair deformation for a known permanent wave process or a curly hair straightening process is mentioned. Examples of the raw material include alkali agents (for example, ammonium hydrogen carbonate, aqueous ammonia, monoethanolamine, potassium hydroxide, etc.), thickeners (for example, carboxymethylcellulose or a salt thereof, pullulan or a derivative thereof, carrageenan, xanthan gum, Various alkylolamides), fats and oils (for example, paraffin, fatty acid ester, animal and vegetable oils), wetting agents (for example, propylene glycol, 1,3-butylene glycol, glycerin), emulsifiers, stabilizers, anti-inflammatory agents, conditioning agents, Colorant, chelating agent, higher alcohol (eg, cetyl alcohol, stearyl alcohol, oleyl alcohol), surfactant (eg, cationic surfactant, anionic surfactant, amphoteric surfactant, nonionic surfactant), protein additive moisture Products (for example, hydrolysates of proteins derived from animals and plants such as collagen, keratin, silk, soybean protein, wheat protein), derivatives of protein hydrolysates, amino acids, preservatives, sequestering agents, fragrances and pigments It is done.

  The first hair deformation agent contains dithiodiglycolic acid [dithiodiglycolic acid or dithiodiglycolic acid salt (diammonium salt, dimonoethanolamine salt, ditriethanolamine salt, etc.) as a reaction modifier. ] May be further blended. In that case, the blending amount in the first hair deformation agent is preferably 2% by weight or more and 20% by weight or less in terms of dithiodiglycolic acid, and preferably 5% by weight or more and 10% by weight or less.

  The first hair deformation agent is adjusted to have a pH of 4 or more and 10 or less by adding water or an alkaline agent (for example, ammonium bicarbonate, aqueous ammonia, monoethanolamine, potassium hydroxide). The pH may be adjusted to be 6 or more and 10 or less.

(3) Hair deformation treatment agent The hair deformation treatment agent is a hair deformation treatment agent containing a reducing agent in order to carry out hair deformation treatment without using an agent containing 1.0% by weight or more of an oxidizing agent. Used for hair treated with one agent. At least one of dithiodiglycolic acid or a salt thereof is blended in the hair deformation treatment agent.

  In addition, if the treatment agent for hair deformation is used for hair treated with the first agent for hair deformation, the treatment agent for hair deformation may be used for hair in a state where the first agent for hair deformation is still applied. Alternatively, the first hair deformation agent may be used on the hair after it has been washed away, or may be used multiple times on the hair. In addition, the hair treated with the first agent for deforming hair (the first agent for deforming hair may or may not be washed away) is treated with the treating agent for deforming hair, The treatment agent for hair deformation may be washed away and the treatment using the treatment agent for hair deformation may be performed again.

  Examples of the salt of dithiodiglycolic acid to be blended in the hair deformation treatment agent include, for example, ammonium dithiodiglycolate, diammonium dithiodiglycolate, sodium dithiodiglycolate, potassium dithiodiglycolate, dithiodiglycolic acid Examples include monoethanolamine and triethanolamine dithiodiglycolate, and one or more of these may be combined.

  The pH of the hair deformation treatment agent is not particularly limited, but is preferably 2 or more, 10 or less, more preferably 5 or more and 9 or less, and even more preferably 7 or more and 9 or less. By setting the pH of the hair deformation treating agent within the above range, hair deformability such as wave forming properties can be enhanced.

  The blending amount of dithiodiglycolic acid in the hair deformation treatment agent (in terms of dithiodiglycolic acid) may be from 0.5% by weight to 10% by weight, and preferably from 3% by weight to 10% by weight. More preferably, the content is 4% by weight or more and 6% by weight or less. In order to improve hair deformability, it is preferable that the amount of dithiodiglycolic acid is large, and even if it is incorporated in an amount of more than 10% by weight, the effect of improving hair deformability does not change.

  The weight percent concentration of dithiodiglycolic acid in the hair deformation treatment agent is preferably 0.1 to 2.0 times the weight percent concentration of the reducing agent in the first hair deformation agent used in combination, It is preferably 0.6 times or more and 2.0 times or less, and more preferably 0.8 times or more and 1.2 times or less.

  The hair deformation treatment agent does not need to contain an oxidizing agent, but may optionally be added. When an oxidizing agent is blended, the blending amount of the oxidizing agent in the hair deformation treatment agent is lower than 1.0% by weight, preferably lower than 0.5% by weight, and lower than 0.1% by weight. More preferred. Further, when at least one of bromate, perborate and hydrogen peroxide is blended in the hair deformation treatment agent, the total blending amount of bromate, perborate and hydrogen peroxide is 1. Less than 0.0% by weight, preferably less than 0.5% by weight, more preferably less than 0.1% by weight. In addition, as bromate here, potassium bromate, sodium bromate, etc. are mentioned, for example. Examples of perborate include potassium perborate and sodium perborate.

  You may mix | blend another arbitrary raw material with the processing agent for hair deformation. The optional raw materials include, for example, fats and oils, lower alcohols, polyhydric alcohols, higher alcohols, cationic polymers, humectants, surfactants, chelating agents, anti-inflammatory agents, preservatives, pH adjusters, ultraviolet absorbers, Examples include sugars, ester oils, fatty acids, hydrocarbons, waxes, polymer compounds, silicones, proteins, amino acids, animal and plant extracts, microorganism-derived substances, inorganic compounds, and fragrances. Here, examples of the chelating agent include edetic acid, disodium edetate (disodium ethylenediaminetetraacetate, EDTA-2Na), hydroxyethanediphosphonic acid, pentasodium diethylenetriaminepentaacetate, and the like. When the chelating agent is blended with the hair deformation treatment agent, the blending amount is preferably 0.01% by mass or more and 5% by mass or less. Examples of the pH adjuster include ammonia, phosphoric acid, sodium monohydrogen phosphate, sodium dihydrogen phosphate, and the like.

  The dosage form of the hair deformation treatment agent is not particularly limited, and examples thereof include liquid, emulsion, lotion, cream, foam (foam), and mist.

(4) Others In the above-described hair deformation treatment, whether or not the hair is further treated with the second agent for hair deformation mixed with an oxidizing agent after the hair is treated with the hair deformation treatment agent is optional. .

  When the treatment with the second agent for deforming hair in which the oxidizing agent is blended is further performed, the blending amount of the oxidizing agent in the second agent for deforming hair may be lower than 1.0% by weight and lower than 0.5% by weight. Preferably, it is less than 0.1% by weight. In the case where the hair is further treated with the second agent for deforming hair containing at least one of bromate, perborate and hydrogen peroxide after the hair is treated with the treatment agent for deforming hair. , Bromate, perborate and hydrogen peroxide in a total amount of less than 1.0% by weight, preferably less than 0.5% by weight, and more preferably less than 0.1% by weight. The second agent for deforming hair is blended with various raw materials blended in the conventionally known second agent for deforming hair (second agent for permanent wave, second agent for straightening hair). May be. Examples of such raw materials include fats and oils, higher alcohols, cationic polymers, humectants, surfactants, chelating agents, anti-inflammatory agents, preservatives, pH adjusters, ultraviolet absorbers, and fragrances. .

  Hereinafter, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to the following examples unless departing from the gist of the present invention.

  In the following examples, “%” means “% by weight”. In addition, as the blending amount of the first hair deformation agent and the hair deformation treating agent, the blending amount of each component is expressed in% so that it becomes 100% as a whole, and the display of the% is omitted in each table below. And only the numerical value indicating the blending amount is displayed.

  The “thioglycolic acid-based first hair deformation agent” used in the Examples and Reference Examples is 5% by weight of thioglycolic acid and 0.2% by weight of disodium ethylenediaminetetraacetate (EDTA- 2Na), and prepared by adjusting the pH to 9.0 with ammonia.

  In addition, the “first cysteine-based hair deformation agent” used in the Examples and Reference Examples contains 6% by weight of cysteine and 0.2% by weight of disodium ethylenediaminetetraacetate (EDTA-2NA). And it prepared by adjusting so that pH might be set to 9.0 with ammonia.

  In addition, the “treatment agent for hair deformation” used in the Examples is blended with dithiodiglycolic acid so as to have each concentration, and 0.2% by weight of disodium ethylenediaminetetraacetate (EDTA-2NA) is added. It was prepared by adjusting the pH to each value with ammonia or phosphoric acid, with or without compounding.

  In addition, the “second agent for deforming hair” used in the reference example is composed of 7.5% by weight sodium bromate and 0.2% by weight disodium ethylenediaminetetraacetate (EDTA-2NA), It was prepared by adjusting the pH to 6 with ammonia or phosphoric acid.

(Hair deformation treatment)
Hair collected from general women and not subjected to chemical treatment such as coloring treatment was used as the target hair in the hair deformation treatment. Here, a plurality of hair bundles having a length of 20 cm and a mass of 0.2 g were prepared, and these were washed with a 10% sodium laureth aqueous solution as a hair bundle sample.

  As a hair deformation treatment, the following treatment was performed. First, in a state where these hair bundles are wound around a rod having a diameter of 12 mm by a water winding method, 3 mL of “first agent for hair deformation based on thioglycolic acid” or “first agent for hair deformation based on cysteine” Each was applied and allowed to stand at room temperature for 10 minutes. Thereafter, 3 mL of “hair deformation treatment agent” or “hair deformation second agent” was applied with or without intermediate washing, and allowed to stand at room temperature for 10 minutes. Thereafter, the hair was washed with water and then air-dried to finish the hair deformation treatment.

  In Examples 1 to 16 and Reference Example 1, a “thioglycolic acid-based first hair deformation agent” was used. In Examples 17 and 18 and Reference Example 2, “Cysteine-based hair deformation first One agent was used.

  Tables 1 to 4 below show the results of Examples and Reference Examples. In addition, the weight% of purified water is an amount in which the total amount becomes 100% by weight, and is not shown.

  Moreover, the photograph of the hair to which the hair deformation process was given about a part of Example and a reference example is shown in FIGS. 1-3.

(Evaluation of wave forming ability)
In the above table, the wave forming ability is evaluated as follows. In Example 1-16, evaluation was performed based on Reference Example 1, and in Examples 17 and 18, evaluation was performed based on Reference Example 2.
◎ ・ ・ ・ A wave stronger than the standard was formed.
○: A wave equivalent to the standard was formed.
Δ: A wave was formed although it was weaker than the standard.
X: Waves are not formed.

  As can be seen from the results shown in Tables 1 to 5, the formation of waves was confirmed in all examples. Further, regarding the first agent for deforming thioglycolic acid hair, in Examples 2-4, 6-8, 11, and 13-16, the wave formation is equal to or higher than that in the case of using the oxidizing agent (Reference Example 1). In particular, in Example 7, the wave forming ability was better than that in the case where the oxidizing agent was used (Reference Example 1). Furthermore, with regard to the first cysteine-based hair deformation agent, in Examples 17 and 18, a wave forming ability equal to or higher than that in the case of using an oxidizing agent (Reference Example 2) was confirmed. The wave forming ability was better than when the oxidizing agent was used (Reference Example 2).

  Further, as can be seen from the results shown in Tables 1 and 2, the pH of the hair deformation treatment agent affects the wave forming ability, and the pH is preferably 5 or more, and the pH is around 8. It has been confirmed that it is particularly preferable.

  Furthermore, according to Tables 1 to 3, in the hair deformation treatment using the hair deformation treatment agent, even when the intermediate water washing that has been conventionally required is performed, the intermediate water washing is not performed. However, it was confirmed that the same wave forming ability was obtained.

  Further, as can be seen from the results shown in Table 3, it was confirmed that the wave forming ability was preferable when the concentration of dithiodiglycolic acid in the hair deformation treatment agent was 3% by weight or more.

  As can be seen from the results shown in Table 4, it was confirmed that the presence or absence of EDTA-2Na in the hair deformation treatment agent did not significantly affect the wave forming ability.

  Further, as can be seen from the results shown in Table 5, the first agent for hair deformation used in combination with the hair deformation treatment agent is a thioglycolic acid-based agent even if it is a cysteine-based hair deformation first agent. It was confirmed that wave forming ability was obtained in the same manner as the first hair deformation agent.

Claims (8)

In order to perform hair deformation treatment without using an agent containing 1.0% by weight or more of an oxidizing agent, it is used for hair treated with the first agent for hair deformation containing a reducing agent,
A hair deformation treating agent containing at least one of dithiodiglycolic acid or a salt thereof. The total of bromate, perborate, and hydrogen peroxide is used for hair deformation treatment performed without using an agent formulated at 1.0% by weight or more.
The treatment agent for hair deformation according to claim 1. pH is 4 or more,
The hair deformation treatment agent according to claim 1 or 2. The amount of dithiodiglycolic acid or a salt thereof is 2.5 wt% or more,
The treatment agent for hair deformation according to any one of claims 1 to 3. Not containing bromate, perborate and hydrogen peroxide,
The treatment agent for hair deformation according to any one of claims 1 to 4. A first step of treating hair using a first agent for deforming hair in which a reducing agent is blended;
After the first step, a second step of treating the hair with a hair deformation treatment agent containing at least one of dithiodiglycolic acid or a salt thereof;
Have
Performing hair deformation treatment without using an agent containing 1.0% by weight or more of an oxidant,
Hair deformation treatment method. The hair deformation treatment is performed without using an agent in which the total amount of bromate, perborate and hydrogen peroxide is 1.0% by weight or more.
The hair deformation treatment method according to claim 6. Performing the hair deformation treatment without using an agent containing at least one of bromate, perborate and hydrogen peroxide,
The hair deformation treatment method according to claim 6 or 7.