JP2000143452A - Hair treatment composition and treatment of hair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a hair treatment composition capable of easily providing a desirable hairdressing without damaging the hair. SOLUTION: This composition is obtained by dissolving a reducing agent adapted to cleave the bond of cystine in hair and to recombine the cystine by natural oxidation and a hairdressing macromolecular compound into a refined water, by using a reforming agent directed to set the neutral pH alkaline and to reduce the binding force of the protein constituent in hair in order to improve the permeability of the reducing agent and by admixing a hair protective agent therewith. As the reducing agent, there is used at least one of cysteine, cysteine hydrochloride, acetylcysteine, sulfite, hydrogensulfite and pyrosulfite in the ratio of 0.1 to 2.9 wt.%. The hairdressing macromolecular compound with high curling property is used. This composition can easily provide a hairdressing with a predetermined wave even after shampoo by only applying the composition onto hair, curling the hair while drying it through air blowing and leaving it for a predetermined time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair treatment composition and a hair treatment method for maintaining the condition of hair.

[0002]

2. Description of the Related Art Conventionally, when setting hair such as a permanent wave, the hair is styled by a technician at a beauty salon or individually by using a commercially available permanent wave agent. And in the case of conventional hairdressing, thioglycolate, cysteine,
A two-bath system comprising two agents, one agent mainly containing a reducing agent such as cysteine hydrochloride and acetylcysteine, and one agent mainly containing an oxidizing agent such as bromate, perborate and hydrogen peroxide. Things are used. In the case of hair styling, for example, the hair is wrapped around a predetermined rod and kept in a curled state, and one agent containing a reducing agent as a main agent is applied to cleave the cystine bond, which is the composition of the hair, and it takes 10 minutes. After 15 minutes have passed, a permanent wave styling is obtained by applying one agent based on an oxidizing agent and forcing it to recombine to a new location.

[0003] However, in this two-bath type permanent waving agent, it is necessary to apply one agent containing a reducing agent as a main agent and to apply one agent mainly containing an oxidizing agent after a lapse of a predetermined time. After 10 to 20 minutes have passed after applying one agent containing an oxidizing agent as a main agent, a part of the hair is removed from the rod, and the state of the wave, which is a hairdressing state, is checked. If two haircuts are applied and the hairstyle is strong, or if the hairstyle is strong, the elasticity of the hair will be impaired. It is. In addition, since the hair is treated by cleaving and recombining the cystine bond of the hair component in a short time, there is a problem that a strong odor is strong.

[0004] Therefore, conventionally, a single-bath type permanent wave agent containing only one reducing agent as a main component has been known. This one-bath type, as prescribed by the Pharmaceutical Affairs Law, wash hair after applying one agent, blow it into the desired hairstyle, and recombines cystine cleaved by natural oxidation of the reducing agent that has permeated the hair. By doing so, the hair is adjusted.

[0005] However, in this one-bath type, since it is necessary to sufficiently oxidize naturally, it is difficult to prepare a desired hairstyle unless the hair is kept in a fixed state after washing. And the inability to wash the hair for more than one day to maintain the effectiveness of the permeating reducing agent. Furthermore, since the curls are formed by the cleavage and recombination of cystine bonds in the hair components due to the action of the reducing agent that has been washed and rinsed once and penetrated into the hair, the content of the reducing agent is large, and the odor at the time of hair styling treatment is high. Insufficient shampooing may cause damage to the hair, such as impaired elasticity of the hair.

[0006]

As described above, the conventional two-bath type has a problem that the hair styling work is complicated, accompanied by a strong odor and may cause hair damage. In addition, the one-bath type has a problem that, in order to obtain a desired hairstyle, restrictions are imposed on actions during hair washing and styling, as well as an unpleasant smell, which may cause damage to the hair.

[0007] The present invention has been made in view of the above problems, and has as its object to provide a hair treatment composition and a hair treatment method which can easily obtain a desired hair styling state without damaging the hair.

[0008]

According to the present invention, there is provided a hair treatment composition comprising a reducing agent which cleaves cystine bonds in hair and recombines cystine by natural oxidation, and a hairdressing polymer compound. It contains.

[0009] Since it contains a reducing agent that cleaves cystine bonds in hair and recombines cystine by natural oxidation, and a high-molecular compound for hair styling, it is applied, for example, in the same manner as ordinary hair styling, and By setting the hairstyle, the hairstyle is held by the high-molecular compound for hairdressing, and in this held state, the bond of cystine in the hair is once cleaved by the reducing agent, and the hair is set after a predetermined time has elapsed. Cystine is recombined by natural oxidation, and even if the reducing agent and the high molecular compound are washed away by hair washing, the hair is adjusted to a desired hairstyle.

The hair treatment composition according to the second aspect is the hair treatment composition according to the first aspect, wherein the high-molecular weight hair compound has a high curl retention property.

[0011] Since a high curling compound is used as a high-molecular compound for hair styling, a desired hairstyle can be easily obtained only by styling with a comb or the like without using, for example, a rod or the like.

[0012] The hair treatment composition according to claim 3 is the hair treatment composition according to claim 1 or 2, wherein the reducing agent is cysteine, cysteine hydrochloride, acetylcysteine, sulfite, bisulfite and pyrosulfite. It is at least one of sulfites.

As a reducing agent, at least one of cysteine, cysteine hydrochloride, acetylcysteine, sulfite, hydrogensulfite and pyrosulfite, which is a reducing substance and has a low reaction odor and is permitted to be used as a cosmetic raw material. The use is easy without adverse effects such as damage to hair.

A hair treatment composition according to a fourth aspect is the hair treatment composition according to any one of the first to third aspects, wherein the properties are neutral to alkaline.

[0015] The pH is neutral to alkaline.
By setting the ratio in the range, the permeability of the reducing agent into the hair is improved, and the reactivity is improved.

According to a fifth aspect of the present invention, there is provided a hair treatment composition according to any one of the first to fourth aspects, wherein the hair treatment composition further comprises a modifier for reducing a binding force of a protein component of the hair. It is.

[0017] Since the hair contains a modifier for reducing the binding force of the protein component of the hair, the permeability of the reducing agent into the hair is improved, and the reactivity is improved.

The hair treatment composition according to claim 6 is the hair treatment composition according to any one of claims 1 to 5, wherein the reducing agent is blended in an amount of 0.1% by weight to 2.9% by weight. It is a thing.

The reducing agent is used in an amount of 0.1% by weight or more and 2.9% or less.
% By weight or less, for example, the hair is completed in about 12 hours until the hair is washed in the morning when bathing in the morning or about 36 hours until the hair is washed in the bathing the next day. Hair treatment is facilitated without restricting daily life as in the case of hair styling. Here, if the amount of the reducing agent is less than 0.1% by weight, the reaction of cleavage and recombination of cystine bonds in the hair becomes insufficient, so that a desired hair styling cannot be obtained. And the hair styling workability is reduced. If the amount of the reducing agent is more than 2.9% by weight, the hair treatment composition may be damaged unless a small amount of the hair treatment composition is used. Cannot be obtained, and the hair styling workability also decreases. For this reason,
The amount of the reducing agent is set to be 0.1% by weight or more and 2.9% by weight or less.

[0020] The hair treatment method according to the seventh aspect is the first aspect.
6. The composition for hair treatment according to any one of to 6 is applied to the hair, and the hair to which the composition for hair treatment is applied is dried while shaping the hair into a predetermined shape, and the reducing agent of the composition for hair treatment is natural. The hair is washed after being oxidized and recombining cystine.

Then, the hair treatment composition according to any one of claims 1 to 6 is applied to the hair, dried while shaping the hair into a predetermined shape, and the reducing agent is naturally oxidized to recombine the cystine, and then the hair is washed. Therefore, for example, after applying the hair in the same manner as ordinary hair styling and shaping the hair into a desired hairstyle, the hair is left for a predetermined period of time, and even if the hair is washed, the hair is shaped into the desired hairstyle.

[0022] The hair treatment method according to claim 8 is directed to claim 7.
In the hair treatment method described above, the time from drying to washing the hair is 12 hours or more and 36 hours or less.

For example, the hair is set in the morning, and the hair is completed in about 12 hours until the hair is washed at the time of bathing at night or about 36 hours until the hair is washed at the time of bathing the next day. Similarly, hair treatment is facilitated without restricting daily life.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the hair treatment composition of the present invention will be described below.

The hair treatment composition is an aqueous solution containing a reducing agent that cleaves cystine bonds in hair and recombines cystine by natural oxidation, and a high-molecular compound for hair styling.

Examples of the reducing agent include cysteine, cysteine hydrochloride, acetylcysteine, which is an acetylated cysteine, sulphite, and bisulphite, which are reducing substances which have a low reaction smell and are used as cosmetic raw materials. And at least one of pyrosulfites.

The reducing agent is preferably added in an amount of 0.1% by weight to 2.9% by weight, particularly preferably 0.5% by weight to 2.0% by weight. Here, if the reducing agent is less than 0.1% by weight, the reaction of cleavage and recombination of cystine in the hair becomes insufficient, so that a desired permanent wave cannot be obtained unless it is used in a large amount. In addition to being economical, a large amount of the hair treatment composition complicates the hairdressing operation. If the amount is more than 2.9% by weight, the amount of the hair treatment composition to be used must be kept small.
Cleavage of the cystine bond of the hair component progresses, causing damage to the hair such as a decrease in the elasticity of the hair, which may cause an unpleasant odor.For example, the hair may be adjusted in the morning and washed up at the time of bathing at night. The reaction is not completed in 12 hours or about 36 hours until the next day of bathing when the hair is washed, and there is a possibility that the treatment time is restricted and the hair styling becomes complicated. For this reason, the reducing agent is used in an amount of 0.1% by weight to 2.9% by weight, particularly 0.5% by weight to
It is preferred to mix at 2.0% by weight.

On the other hand, examples of the polymer compound for hair styling include acrylic acid polymer compounds, methacrylic acid polymer compounds, vinylpyrrolidone polymer compounds, vinyl acetate polymer compounds, and vinyl ether polymer compounds. Can also be used as a high-molecular compound for hair styling. If the curl retention is low, for example, when the hairstyle is held only by the holding power of the polymer compound without using a rod or the like, the hairstyle may be broken before the reaction is completed, and a desired hairstyle may not be obtained. Therefore, those having excellent curl retention are particularly preferable.

The composition for treating hair preferably has a neutral to alkaline pH range. In other words, the reason is that the hair swells and the reducing agent easily penetrates into the inside of the hair so that the reaction proceeds well. Examples of the pH adjusting agent for adjusting the properties to a neutral to alkaline pH range include ammonia water, amino alcohols, basic amino acids, sodium carbonate, potassium hydroxide, and the like, which are approved for use as cosmetic raw materials. Add modifier.

The composition for treating hair has a binding force of a protein component of hair such as ethyl alcohol, ethylene glycol, dipropylene glycol, 1,3-butylene glycol, ethylene glycol monoethyl ether, urea or a urea derivative. Is contained.

Further, the composition for treating hair may include, for example, dithiodiglycolate, L-cystine, DL-cystine, a cationic polymer compound, silicone oil, denatured silicone, lecithin, lanolin, etc., alone or in combination. Contains a protective agent.

Next, the operation of using the hair treatment composition of the above embodiment will be described.

First, the hair treatment composition, which has been previously uniformly mixed and dissolved, is appropriately applied to the hair, for example, at a ratio of about 25% based on the total weight of the hair.

Then, a desired curl is formed on the hair.
That is, for example, the hair is wound around a rod having an appropriate diameter to obtain a desired curl, left for a predetermined time, for example, 8 hours, and then removed, or the hair is blown into a predetermined curl while drying the hair with a dryer.

Thereafter, the hair is left for about 12 hours to wash the hair.

As described above, only by applying the hair treatment composition to form a curl, a desired curl can be formed even if the hair is washed by leaving it to stand for a predetermined time, and the hair can be easily shaped into a desired hairstyle.

In addition, the desired curl can be maintained even after shampooing, and the hair can be easily adjusted to a desired hairstyle only by blowing the hair in the same manner as a conventional hairdressing material without using a rod.

Since the hair treatment composition is not washed out until the reaction of cleavage and recombination of the cystine bond of the hair component is completed, the amount of the reducing agent can be reduced, and the cystine bond of the hair component is unnecessarily cleaved. Without damage to the hair without damaging the elasticity of the hair,
The generation amount of reaction products such as hydrogen sulfide and mercaptan can be suppressed, and the generation of off-flavor can be suppressed.

By appropriately setting the amount of the reducing agent, it is possible to set the time from application to the hair to shampooing to shampooing, for example, about 12 hours from shampooing in the morning to shampooing at the time of bathing at night. When the time is one cycle, or when one cycle is about 24 hours from the time of hair styling at the time of bathing at night to the time of shampooing at the time of bathing of the next night, hair styling in the morning and then washing at the time of bathing the next day For example, in the case where about 36 hours up to one cycle is one cycle, it may be appropriately blended in accordance with the life rhythm, and since it is applied and left as it is after hair styling, hair styling can be easily performed without restricting living behavior.

As the reducing agent, at least one of cysteine, cysteine hydrochloride, acetylcysteine, sulfite, bisulfite and pyrosulfite, which is a reducing substance, has a low reaction odor, and is permitted to be used as a cosmetic raw material. Since one is used, it can be easily used without adverse effects such as damage to hair.

Further, by adding a pH adjuster to set the properties within a neutral to alkaline pH range, the permeability of the reducing agent into the hair can be improved, and the reactivity can be improved.
The reaction proceeds reliably to the inside of the hair in a short time, and the desired hair styling can be easily obtained.

Furthermore, since the hair contains a modifier for reducing the binding force of the protein component of the hair, the permeability of the reducing agent into the hair can be improved, and the reactivity can be improved. The reaction proceeds, and the desired hair styling can be easily obtained.

By reducing the amount of the reducing agent for improving the reactivity, it is possible to further prevent the damage to the hair and suppress the off-flavor.

Although the above embodiment has been described with the addition of a pH adjuster, a modifying agent and a hair protecting agent, it is not necessary to add them.

[0045]

EXAMPLES Next, the results of experiments on the hair styling effect of a hair treatment composition prepared by appropriately setting the amount of the reducing agent will be described.

The mixing ratio is shown in Table 1. And
As an experimental method, in Examples 1 and 2, the hair was applied at a rate of about 25% based on the weight of the hair, the hair was wound around a rod, allowed to stand for about 8 hours, and then removed from the rod.
It was left for a while, washed and air-dried. In Examples 3 and 4, hair was applied at a rate of about 25% based on the weight of the hair, curled while drying with a dryer, allowed to stand for 12 hours, washed, and air-dried.

[0047]

[Table 1] As a result, 0.5% by weight of L-cysteine was used as a reducing agent.
In Example 1 in which the composition was air-dried, a predetermined permanent wave hairstyle could be reproduced only by short-time blowing,
The hairstyle also lasted for a long time.

In Comparative Example 1 containing 0.1% by weight of L-cysteine, a predetermined hairstyle was obtained by short-time blow finishing, but the durability was reduced.

On the other hand, as a reducing agent, Example 2 in which 1.5% by weight of L-cysteine and 0.4% by weight of sodium sulfite were added and 1.9% by weight in total was added.
Can reproduce the desired hairstyle with a short blow after air drying,
The hairstyle also lasted for a long time.

Comparative Example 2 in which 2.5% by weight of L-cysteine and 0.5% by weight of sodium sulfite were added as reducing agents and a total amount of 3.0% by weight was added.
With a short blow finish, a predetermined hairstyle was obtained, but the wave became stronger over time.

As can be seen from the results of these experiments, a desired hairstyle can be obtained by blending the reducing agent in an amount of 0.1% by weight to 2.9% by weight, and in particular, 0.5% by weight to 1.9% by weight. %, It can be seen that the styling hairstyle can be maintained for a long time.

Further, in each of the examples, almost no off-flavor was felt.

[0053]

According to the composition for treating hair according to the first aspect of the present invention, it contains a reducing agent that cleaves cystine bonds in the hair and recombines cystine by natural oxidation, and a high-molecular hair compound. For example, by applying the hair in the same manner as ordinary hair styling and shaping the hair into a desired hair style, the hair style is held by the hair styling polymer compound, and in this held state, the binding of cystine in the hair is once reduced by a reducing agent. Cleaved,
The cystine is recombined by natural oxidation in a state where the hair has been trimmed by a predetermined time, and the hair can be adjusted to a desired hairstyle even if the reducing agent and the high molecular compound are washed out by washing the hair, and the amount of the reducing agent can be reduced, Damage to hair and off-odor can be easily suppressed.

According to the hair treatment composition of the second aspect, in addition to the effects of the hair treatment composition of the first aspect, since a high curl holding compound is used as a high-molecular compound for hair styling, For example, a desired hairstyle can be easily obtained only by hairdressing with a comb or the like without hairdressing with a rod or the like.

According to the composition for treating hair according to the third aspect, in addition to the effects of the composition for treating hair according to the first or second aspect, it is used as a reducing agent as a reducing agent with a low reactive odor and as a raw material for cosmetics. Since at least one of the allowed cysteine, cysteine hydrochloride, acetylcysteine, sulfite, bisulfite and pyrosulfite is used, it can be easily used without adverse effects such as damage to hair.

According to the hair treatment composition of the fourth aspect, in addition to the effects of the hair treatment composition of any one of the first to third aspects, the properties are set within a neutral to alkaline pH range. Therefore, the permeability of the reducing agent into the hair can be improved, and the reactivity can be improved.

According to the composition for treating hair according to claim 5, in addition to the effect of the composition for treating hair according to any one of claims 1 to 4, a modifier for reducing the binding power of protein components of hair. , The permeability of the reducing agent into the hair can be improved, and the reactivity can be improved.

According to the hair treatment composition of the sixth aspect, in addition to the effect of the hair treatment composition of any one of the first to fifth aspects, a reducing agent is used in an amount of 0.1% by weight or more and 2.9% by weight. % Or less, the hair can be easily adjusted without causing damage to the hair and unpleasant odor. For example, the hair can be adjusted in the morning for about 12 hours until the hair is washed at the time of bathing at night or until the hair is washed at the time of bathing the next day. Hairdressing is completed in about 36 hours, and hair treatment can be easily performed without restricting daily life as in the case of hairdressing using a normal hairdressing material.

According to the hair treatment method of claim 7, the hair treatment composition of any one of claims 1 to 6 is applied to the hair, dried while shaping the hair into a predetermined shape, and the reducing agent is naturally used. Since the hair is washed after being oxidized and recombined with cystine, it can be applied to the hair in the same manner as in ordinary hairdressing and then left for a predetermined period of time after shaping into a desired hairstyle. Can be reduced and hair damage and off-flavor can be easily suppressed.

According to the hair treatment method of the eighth aspect, in addition to the effect of the hair treatment method of the seventh aspect, for example, bathing for about 12 hours until the hair is washed in the morning and bathing at night or bathing the next day. Hairdressing is completed in about 36 hours until the hair is washed at the time, and hair can be easily treated without restricting daily life as in the case of hairdressing with normal hairdressing materials.
The compounding amount of the reducing agent can be reduced, and hair damage and off-flavor can be easily suppressed.

Claims (8)

[Claims] 1. A hair treatment composition comprising a reducing agent that cleaves cystine bonds in hair and recombines cystine by natural oxidation, and a high-molecular compound for hairdressing. 2. The hair treatment composition according to claim 1, wherein the hairdressing polymer compound has a high curl retention property. 3. The hair treatment according to claim 1, wherein the reducing agent is at least one of cysteine, cysteine hydrochloride, acetylcysteine, sulfite, bisulfite, and pyrosulfite. Composition. 4. The hair treatment composition according to claim 1, wherein the property is neutral to alkaline. 5. The hair treatment composition according to claim 1, further comprising a modifying agent for reducing the binding strength of the protein component of the hair. 6. The hair treatment composition according to claim 1, wherein the reducing agent is contained in an amount of 0.1% by weight or more and 2.9% by weight or less. 7. The hair treatment composition according to any one of claims 1 to 6, which is applied to hair, and the hair to which the hair treatment composition has been applied is dried while keeping its shape in a predetermined shape. A hair treatment method, wherein the hair is washed after the reducing agent of the treatment composition is naturally oxidized and cystine is recombined. 8. The time from drying to washing the hair is 12 hours.
8. The time is not less than 36 hours and not more than 36 hours.
The hair treatment method according to the above.