JP6980881B1 - A hair modification method that applies low-molecular-weight mucopolysaccharides along with alkaline treatment for hair, and hair cosmetics containing mucopolysaccharides. - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the feel of hair such as thin hair, lack of elasticity, poor finger passage, and appearance such as dullness and disorganization of hair, and to obtain their lasting effects. And. As a result of diligent studies to solve problems in the feel and appearance of hair due to damage to hair, the present inventors have surprisingly applied an alkaline agent to hair. By combining the process of applying a mucopolysaccharide having an appropriate molecular weight, it was found that problems in the feel and appearance of hair can be improved, and that such a hair modification effect can be continuously obtained. The invention was completed. [Selection diagram] None

Description

The present invention relates to a hair modification method for applying a low molecular weight mucopolysaccharide to hair together with an alkaline treatment, and a hair cosmetic containing mucopolysaccharide.

It is known that hair is easily damaged by chemical treatments such as perm, bleach, hair coloring, straightening hair, ultraviolet rays from sunlight, heat from a dryer, brushing, etc., and various hair components are lost, resulting in a feeling of damage to the hair. ing. These hair damages are felt by changes in the feel of the hair, such as thinning, lack of elasticity, and poor finger passage, and changes in the appearance, such as dullness and disorganization, mainly for women. It has become a major problem with hair. Therefore, in recent years, there has been an increasing need for a method for improving the texture of such hair and a hair cosmetic for that purpose.

As a method for improving such hair problems, it has been proposed to supplement components such as amino acids, collagen, and lipids from the outside. For example, Patent Document 1 proposes a hair protectant containing a copolymer of 2-methacryloyloxyethyl phosphorylcholine and 2-hydroxy-3-methacryloyloxypropyltrimethylammonium chloride together with a basic amino acid. Further, Patent Document 2 uses a cosmetic for hair containing hydrolyzed collagen and an amino acid having 2 or 3 nitrogens in the molecule and / or a salt thereof for permanent wave processing, hair dyeing, and decolorization. We are proposing a method to supplement the hair dysfunction caused by such factors and physically protect it. Further, Patent Document 3 proposes a method for improving the firmness, elasticity and feel of hair, which is characterized by applying a hair component such as a lipid component inherent in hair or a relative thereof, which has decreased with aging, to the hair. There is.

However, in these methods, the component replenished from the outside does not have high permeability into the hair, so that a sufficient reforming effect of the hair cannot be obtained. In addition, it was difficult to obtain a long-lasting effect because it was easily washed away by washing hair with shampoo or the like.

Further, in Patent Document 4, a cosmetic composition obtained by adding a strong acid such as sulfuric acid to a vegetable oil in a specific ratio and heat-treating the vegetable oil causes "no elasticity", "no luster", and "cohesiveness". We are proposing a method that has the effect of improving the feeling of damage to the hair, such as "no" and "dry", and that the effect is sustained.

However, even with this method, the permeability of the vegetable oil to the hair was not sufficient, and it was difficult to obtain a continuous reforming effect. In addition, the cosmetic composition to which a strong acid is added is incompatible with the alkaline agents used in various treatments and cancels out the effects of each other, so that there is a problem that the application situations are limited.

JP-A-2004-346005 JP 2006-062972 Japanese Patent Application Laid-Open No. 10-152421 JP-A-2018-135298

As a result of diligent studies to solve these problems, the present inventors applied an alkaline agent to the hair, and the mucopolysaccharide having a specific molecular weight in the state where the cuticle of the hair was opened and swollen was efficient. We have found that it penetrates well into the hair and can improve the texture and appearance of the hair, and that such a hair modification effect can be continuously obtained.

An object of the present invention is to improve the feel of hair such as thin hair, lack of elasticity, and poor finger passage due to damage to the hair. Another object of the present invention is to improve the appearance of the hair, such as dullness and disorganization, which accompanies damage to the hair. Another object of the present invention is to obtain a sustainable effect on improving the feel of hair such as finger passage and the appearance of cohesiveness.

As a result of diligent studies to solve the above-mentioned problems in the feel and appearance of hair, the present inventors have, surprisingly, applied a step of applying an alkaline agent to hair and an appropriate low-molecular-weight muco. It has been found that by combining the steps of applying the polysaccharide, problems in the feel and appearance of the hair can be improved, and such a reforming effect can be continuously obtained, and the present invention has been completed.

The present invention is a hair modification method comprising a step of applying an alkaline agent to hair and a step of applying a mucopolysaccharide having a mass average molecular weight of 1,000 to 30,000.

In the present invention, it is also possible that the mucopolysaccharide is one or more selected from hyaluronic acid, chondroitin sulfate, heparin and salts thereof.

In the present invention, it is also feasible when the mass average molecular weight of the mucopolysaccharide is 2,000 to 20,000.

In the present invention, it is also feasible when the mass average molecular weight of the mucopolysaccharide is 3,000 to 10,000.

In the present invention, the application of the alkaline agent and the mucopolysaccharide can also be carried out in the process of hair coloring treatment.

In the present invention, it is also possible to further include a step of applying a dye and a step of applying an oxidizing agent to the hair.

In the present invention, the application of the alkaline agent and the mucopolysaccharide can also be carried out when the hair straightening treatment is performed.

The present invention further includes a step of applying a reducing agent to the hair, a step of heating the hair to straighten the curly hair, and a step of applying an oxidizing agent after all of the above steps. Is also feasible.

In the present invention, the application of the alkaline agent and the mucopolysaccharide can also be carried out in the process of permanent wave processing.

In the present invention, it is also possible to further include a step of applying a reducing agent to the hair and a step of forming a wave on the hair, and also including a step of applying an oxidizing agent after passing through each of the above steps. be.

In the present invention, it is also possible to make a hair cosmetic containing an alkaline agent and a mucopolysaccharide having a mass average molecular weight of 1,000 to 30,000.

In the present invention, it is also possible to carry out the case where the hair cosmetic further contains a dye and / or an oxidizing agent and is used for a hair coloring treatment.

In the present invention, it is also possible to carry out the case where the hair cosmetic further contains a reducing agent and is used for hair straightening treatment or permanent wave processing treatment.

In the present invention, it is also possible to make a hair cosmetic which is used in a state where the hair is swollen / swelled and contains a mucopolysaccharide having a mass average molecular weight of 1,000 to 30,000.

In the present invention, it is also possible that the mucopolysaccharide is one or more selected from hyaluronic acid, chondroitin sulfate, heparin and salts thereof.

In the present invention, it is also feasible when the mass average molecular weight of the mucopolysaccharide is 2,000 to 20,000.

According to the present invention, it is possible to improve the feel of hair such as thin hair, lack of elasticity, and poor finger passage due to damage to the hair. Further, according to the present invention, it is possible to improve the appearance such as dullness and uncoordinated hair due to damage to the hair. Further, according to the present invention, it is possible to obtain a sustained effect on improving the feel of hair such as finger passage and the appearance of cohesiveness.

A mode for carrying out the present invention

[Mucopolysaccharide]
The mucopolysaccharide of the present invention is a general term including polysaccharides obtained from animal mucus and salts and derivatives thereof. The origin thereof is not particularly limited, but various animal tissues, mucopolysaccharide-producing microorganisms, animal cells or plant cell cultures extracted by a conventional method are known. Specific examples of mucopolysaccharides include hyaluronic acid, hyaluronic acids such as hyaluronic acid derivatives; chondroitin and chondroitin sulfate (chondroitin-4-sulfate, chondroitin-6-sulfate); dermatan sulfate; heparan sulfate; heparan; chitin; chitosan; Examples thereof include keratane sulfate and the like, as well as salts thereof. These can be blended alone or in combination of two or more. Of these, hyaluronic acid, chondroitin sulfate, heparin and salts thereof are particularly preferably used in the present invention.

Generally, the mucopolysaccharide has a high molecular weight having a mass average molecular weight of more than 500,000, but in the present invention, a low molecular weight mucopolysaccharide having a mass average molecular weight of 30,000 or less is used. The upper limit of the mass average molecular weight of the mucopolysaccharide in the present invention is 30,000, preferably 20,000, and more preferably 10,000. The lower limit is 1,000, preferably 2,000, and even more preferably 3,000. When the mass average molecular weight of the mucopolysaccharide is included in this range, it efficiently penetrates into the hair through the gaps of the cuticle of the hair, and it becomes easy to continuously exert the effect of improving the hair quality. The mass average molecular weight can be measured, for example, by gel permeation chromatography (GPC).

As the low-molecular-weight mucopolysaccharide of the present invention, a commercially available product or a product produced by a method such as hydrolysis or chemical synthesis of the high-molecular-weight mucopolysaccharide can be used. When using a commercially available product, if it is a low molecular weight hyaluronic acid, for example, nanohyaluronic acid (C) (FAP Japan Co., Ltd., molecular weight: 3,000 to 10,000), hyalooligo (KUP Co., Ltd., average molecular weight: 7, 000-8,000), micro hyaluronic acid FCH (Kikkoman Biochemifa Co., Ltd., average molecular weight: 5,000 or less), UltraHA ultra-low molecular weight hyaluronic acid (Chori Co., Ltd., average molecular weight: 5,000 or less), etc. are used. Be done. Further, in the case of low molecular weight chondroitin sulfate, nano-type chondroitin (Funakoshi Co., Ltd., mass average molecular weight: about 2,000 to 3,000) and the like can be mentioned. In the case of low molecular weight heparin, mini-heparin of sodium parnapalin (Fuso Pharmaceutical Indus, Inc., average molecular weight: about 5,000), low heparin (Awai Pharma Co., Ltd., mass average molecular weight: 4,500 to 6,500) Etc. are used.

The low-molecular-weight mucopolysaccharide of the present invention is preferably applied to hair as a cosmetic for hair dissolved in a solvent such as water, and other components can be appropriately blended as long as the effects of the present invention are not impaired. .. The concentration of the low-molecular-weight mucopolysaccharide in the total cosmetics is not particularly limited, but is preferably about 2 to 15 w / v%, and more preferably 5 to 10 w / v%. By including the concentration of the low-molecular-weight mucopolysaccharide in this numerical range, it becomes easy to penetrate into the hair through the gaps of the cuticle of the hair.

The dosage form and application method of the hair cosmetic containing the low molecular weight mucopolysaccharide of the present invention is not particularly limited, and liquids, suspensions, emulsions, creams, gels, liniments, lotions, aerosols, etc. Any dosage form can be appropriately applied by a method according to the dosage form. Among these dosage forms, liquid agents and aerosol agents are more preferable, and as a method of application to hair, a method of application, a method of spraying with a spray, or the like is more preferable.

[Alkaline agent]
The type of the alkaline agent used in the present invention is not particularly limited, and examples thereof include ammonia, monoethanolamine, ammonium hydrogencarbonate, sodium carbonate, and arginine, and among them, ammonia and monoethanolamine are preferably used. The alkaline agent is preferably applied to hair as a hair cosmetic dissolved in a solvent such as water. The proportion of the alkaline agent in the total cosmetics is adjusted so that the pH is 8 to 12, more preferably 9 to 11. When the pH is in this range, the cuticle can be opened appropriately without causing great damage to the hair, and the low-molecular-weight mucopolysaccharide can be efficiently permeated into the hair, and the effect of improving the hair quality can be easily exerted.

The dosage form and application method of the hair cosmetic containing an alkaline agent used in the present invention is not particularly limited, and any liquid, suspension, emulsion, cream, gel, liniment, lotion, aerosol, etc. Can be appropriately applied by a method according to the dosage form of. Among these dosage forms, liquid agents and aerosol agents are more preferable, and as a method of application to hair, a method of application, a method of spraying with a spray, or the like is more preferable.

In the present invention, the steps of applying the low-molecular-weight mucopolysaccharide and the step of applying the alkaline agent are performed in close time from the viewpoint of opening the cuticle with the alkaline agent and efficiently infiltrating the low-molecular-weight mucopolysaccharide into the hair. Of course, it should be done, but these steps may be simultaneous or any step may come first.

In the present specification and claims, when a plurality of steps are described and the relationship between the preceding and the following is described as "including the step of" without particular mention, the step and the other steps are performed at the same time. This includes both cases and cases where each step is performed at different times. When a plurality of steps are performed at the same time, it is possible to apply them as separate compositions, but from the viewpoint of work efficiency, it is preferable to mix and apply each component into one agent. Further, the same step may be performed a plurality of times, and other arbitrary steps such as shampoo, sinking, finishing, etc. may be included between the plurality of steps and before and after the plurality of steps as long as the gist of the present invention is not impaired. good.

[Hair color treatment]
The hair modification method of the present invention may be carried out in the process of hair coloring treatment, and in that case, it is preferable to include a step of applying a dye and fixing the hair to the hair, and a step of applying an oxidizing agent. The dye can be penetrated and fixed inside the hair by applying the dye in a state where the hair is swollen by the alkaline agent and the cuticle is opened / opened, and the oxidizing agent is decomposed by the alkaline agent inside the hair. This generates oxygen and decolorizes the melanin pigment inside the hair.

The type of dye is not particularly limited, but it is preferable to use an oxidative dye from the viewpoint that it easily penetrates into the hair and is easily fixed inside the hair instead of the surface of the hair. More specific types can be appropriately selected depending on the intended purpose, and for example, resorcin, para-aminophenol, meta-aminophenol, toluene-2,5-diamine, 5-aminoorthocresol, paraphenyldiamine, orthochloroparaphenylenediamine sulfate. , Hydrochloride 2,4-diaminophenoxyethanol, para-phenylenediamine, toluene-2,5-diamine sulfate, α-naphthol, 5- (2-hydroxyethylamino) -2-methylphenol and the like. The dosage form and application method are not particularly limited, but it is preferable to apply it to hair as a hair cosmetic dissolved in a solvent such as water, and the hair cosmetic containing the alkaline agent and / or a low molecular weight mucopolysaccharide. It may be blended in and applied, or it may be applied as a composition different from these. The blending amount is not particularly limited and may be appropriately adjusted depending on the intended purpose, but is approximately 0.1 to 10 w / v% with respect to the whole.

The type of oxidizing agent is not particularly limited, but hydrogen peroxide is preferably used from the viewpoint that it easily penetrates into the hair and is easily decomposed by an alkaline agent to generate oxygen. The formulation and application method are not particularly limited, but it is preferable to apply it to hair as a hair cosmetic dissolved in a solvent such as water, and the hair cosmetic containing the alkaline agent and / or a low molecular weight mucopolysaccharide. It may be blended and applied in a composition containing the dye, or may be blended and applied in a composition containing the dye, or may be applied as a composition different from these. The blending amount is not particularly limited and may be appropriately adjusted depending on the intended purpose, but is approximately 0.1 to 10 w / v% with respect to the whole.

As a specific method for carrying out the hair modification method of the present invention in the process of hair coloring, for example, (1) first apply a first hair cosmetic containing a low molecular weight mucopolysaccharide. A method of applying a second hair cosmetic containing an alkaline agent, a dye, and an oxidizing agent after leaving it for about 2 to 10 minutes, and (2) a low-molecular-weight mucopolysaccharide, an alkaline agent, a dye, and an oxidizing agent. As a one-agent hair cosmetic, there is a method of applying it to hair at the same time.

[Hair straightening treatment]
The hair modification method of the present invention may be performed in the process of straightening hair, but in straightening hair, it is difficult to obtain a sufficient straightening effect only by swelling the hair with an alkaline agent. Therefore, it is preferable to further apply a reducing agent for reducing and cleaving the SS bond (cystine bond) of the sulfur-containing protein inside the hair and facilitating the straightening of the direction of the hair. Further, it is preferable to include a step of heating the hair to straighten the curly hair and a step of applying an oxidizing agent after those steps, and the order thereof is an alkaline agent, a reducing agent, and a low molecular weight mucopolysaccharide. After the step of applying, it is preferable that the step of heating the hair to correct the curly hair and the step of applying the oxidizing agent are performed in this order.

The reducing agent is preferably applied to the hair almost at the same time as the alkaline agent from the viewpoint of efficiently penetrating into the hair and reducing / breaking the SS bond (cystine bond), and contains the alkaline agent from the viewpoint of work efficiency. It is particularly preferable to mix it with hair cosmetics and apply it at the same time. The types of reducing agents used in the present invention include thioglycolic acid, cysteine, cysteamine, thioglycerin, sulfate, and sulfurous acid from the viewpoint of efficiently reducing and cleaving SS bonds (cystine bonds) under alkaline conditions. In addition, these salts and the like can be mentioned, and one of them may be used or two or more of them may be used in combination. The blending amount is not particularly limited and may be appropriately adjusted depending on the intended purpose, but is generally about 0.1 to 12 w / v%, more preferably about 5 to 10 w / v% with respect to the whole.

The type of oxidizing agent is not particularly limited, but hydrogen peroxide, sodium bromate, etc. are preferably used from the viewpoint of easily penetrating into the hair and efficiently rebinding SS bonds (cystine bonds) cleaved by an alkaline agent. Be done. The dosage form and application method are not particularly limited, but it is preferable to apply it to hair as a cosmetic for hair dissolved in a solvent such as water, and the blending amount thereof can be appropriately adjusted according to the purpose, but as a whole. On the other hand, it is about 0.1 to 10 w / v%, more preferably about 4 to 8 w / v%.

As a specific method for carrying out the hair modification method of the present invention in the process of straightening hair, for example, (1) first apply a first hair cosmetic containing a low molecular weight mucopolysaccharide. After leaving it for about 2 to 10 minutes, a second hair cosmetic containing an alkaline agent and a reducing agent is applied, and then a step of heating the hair to straighten the curly hair is performed, and then oxidation is performed. A method of applying a third hair cosmetic containing an agent, and (2) applying a first hair cosmetic containing a low molecular weight mucopolysaccharide, an alkaline agent, and a reducing agent, and then applying the hair. Examples thereof include a method in which a step of straightening hair by heating is performed, and then a second hair cosmetic containing an oxidizing agent is applied.

[Permanent wave processing]
The hair modification method of the present invention may be carried out in the process of permanent wave processing, but in permanent wave processing, it is difficult to sufficiently form a wave simply by swelling the hair with an alkaline agent. Therefore, it is preferable to further apply a reducing agent for reducing and cleaving the SS bond (cystine bond) of the sulfur-containing protein inside the hair and facilitating the formation of a wave. Further, it is preferable to include a step of forming a wave on the hair and a step of applying an oxidizing agent after the step, and the step of forming the wave on the hair may be performed by using a conventionally known method in the permanent wave processing treatment. It can be done, and heat or the like may be added as needed. In this case, the step of applying the low-molecular-weight mucopolysaccharide and the step of applying the alkaline agent and the reducing agent may be either before or after the step of forming a wave in the hair, but the step of applying the low-molecular-weight mucopolysaccharide is inside the hair. From the viewpoint of permeability to and sustainability of the modifying effect, it is more preferable to apply both before and after.

The reducing agent is preferably applied to the hair almost at the same time as the alkaline agent from the viewpoint of efficiently penetrating into the hair and reducing / breaking the SS bond (cystine bond), and contains the alkaline agent from the viewpoint of work efficiency. It is particularly preferable to mix it with hair cosmetics and apply it at the same time. The types of reducing agents used in the present invention include thioglycolic acid, cysteine, cysteamine, thioglycerin, sulfate, and sulfurous acid from the viewpoint of efficiently reducing and cleaving SS bonds (cystine bonds) under alkaline conditions. In addition, these salts and the like can be mentioned, and one of them may be used or two or more of them may be used in combination. The blending amount is not particularly limited and may be appropriately adjusted depending on the intended purpose, but is generally about 0.1 to 12 w / v%, more preferably about 5 to 10 w / v% with respect to the whole.

The type of oxidizing agent is not particularly limited, but hydrogen peroxide, sodium bromate, etc. are preferably used from the viewpoint of easily penetrating into the hair and efficiently rebinding SS bonds (cystine bonds) cleaved by an alkaline agent. Be done. The dosage form and application method are not particularly limited, but it is preferable to apply it to hair as a cosmetic for hair dissolved in a solvent such as water, and the blending amount thereof can be appropriately adjusted according to the purpose, but as a whole. On the other hand, it is about 0.1 to 10 w / v%, more preferably about 4 to 8 w / v%.

As a specific method for carrying out the hair modification method of the present invention in the process of permanent wave processing, for example, (1) first apply a first hair cosmetic containing a low molecular weight mucopolysaccharide. After leaving it for about 2 to 10 minutes, a second hair cosmetic containing an alkaline agent and a reducing agent is applied, and then a step of forming a wave on the hair is performed, followed by a second containing an oxidizing agent. Method 3 for applying hair cosmetics, (2) First, apply the first hair cosmetic containing low-molecular-weight mucopolysaccharide, leave it for about 2 to 10 minutes, and then use an alkaline agent and a reducing agent. A second hair cosmetic containing the above is applied, followed by a step of forming a wave on the hair, a first hair cosmetic containing a low molecular weight mucopolysaccharide is applied, and then an oxidizing agent is applied. The method of applying the third hair cosmetic containing, and (3) first apply the first hair cosmetic containing low molecular weight mucopolysaccharide, leave it for about 2 to 10 minutes, and then wave it to the hair. A second hair cosmetic containing an alkaline agent and a reducing agent is applied, and then a first hair cosmetic containing a low molecular weight mucopolysaccharide is applied, followed by oxidation. A method of applying a third hair cosmetic containing an agent, and the like can be mentioned.

[Solvent component of hair cosmetics]
In the present invention, the preferred solvent for hair cosmetics containing low molecular weight mucopolysaccharides, alkaline agents, reducing agents, oxidizing agents and the like is mainly water, but monohydric alcohols such as ethanol. , Other solvents such as polyhydric alcohol can be appropriately blended and used. When a polyhydric alcohol is blended, for example, one selected from the group consisting of glycerin, 1,3-butylene glycol, dipropylene glycol, dipropylene glycol, and other low molecular weight polyhydric alcohols having 6 or less carbon atoms. Two or more polyhydric alcohols can be used.

[Optional ingredients for hair cosmetics]
In the hair cosmetic of the present invention, other ingredients may be appropriately blended in addition to the above, as long as the gist of the present invention is not impaired. Other non-limiting examples include, for example, pH regulators, antioxidants, surfactants, thickeners, preservatives, irritants, stabilizers, moisturizers, preservatives, colorants. , Fragrances, dissolution aids and the like. Each of these components may be used alone or in combination of two or more. Further, a solvent, a propellant, etc. suitable for the desired dosage form can be appropriately blended, and the amount to be used may be appropriately selected according to the purpose.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples.

[Preparation of various hair cosmetics]
First, as the hair cosmetic A, an aqueous solution dissolved in water was prepared so that the low molecular weight hyaluronic acid (mass average molecular weight of about 8,000) was 7.5 w / v%. Further, a hair cosmetic B containing an alkaline agent, an oxidizing dye, and an oxidizing agent for hair coloring treatment is blended, and a hair cosmetic C containing an alkaline agent and a reducing agent, and an oxidizing agent are blended for permanent wave processing treatment. The hair cosmetics D were prepared. The hair cosmetic B is used by mixing 90 g of the following composition 1 and 90 g of the composition 2 at the time of treatment, and is a specific formulation relating to the hair cosmetic C or the hair cosmetic D. Is as follows.

[Hair cosmetic B]
Composition 1
(W / v%)
Resorcin 1.0
Para-aminophenol 1.0
Metaaminophenol 1.0
Toluene-2,5-diamine 1.0
5-Amino orthocresol 1.0
Cetanol 15.0
1,3-butylene glycol 8.0
POE cetyl ether 6.0
Stearyl alcohol 5.0
Ammonia 5.0
Ammonium bicarbonate 2.0
Concentrated glycerin 2.0
Hydrogenated oil 1.0
Palm oil 1.0
Palm kernel oil 1.0
Rice bran oil 1.0
Polydimethylmethylene piperidinium 1.0
Ascorbic acid 0.5
Stearyltrimonium chloride 0.5
Setrimonium chloride 0.5
Edetate 0.5
Trimethyl Ammonio Hydroxypropyl Chloride Hydroxyethyl Cellulose 0.4
Anhydrous sodium sulfite Appropriate amount
Purified water balance
100 ml

Composition 2
(W / v%)
Hydrogen peroxide 6.0
Cetanol 10.0
Liquid paraffin 8.0
Polyoxyethylene cetyl ether 3.0
Concentrated glycerin 2.0
Coconut oil fatty acid amide propyl betaine 2.0
2-Ethylhexyl palmitate 1.0
Jojoba oil 1.0
Shea butter 1.0
Hydroxyethanediphosphonic acid 0.2
Hydroxyethanediphosphonate tetrasodium 0.2
Dipotassium glycyrrhizinate 0.1
L-Arginine 0.1
Sodium hyaluronate 0.1
Disodium hydrogen phosphate Appropriate amount Lactic acid Appropriate amount
Purified water balance
100 ml

[Hair cosmetics C]
(W / v%)
Sodium thioglycolate 6.0
Ammonia 4.0
Diammonium dithiodiglycolate 2.0
Polymethacryloylethyldimethylbetaine 2.0
Monoethanolamine 1.0
Ammonium bicarbonate 1.0
Ethanol 1.0
Polyoxyethylene polyoxypropylene decyltetradiol ether 1.0
Amidopropyl Betaine Laurate 1.0
Stearyl trimethylammonium chloride 1.0
Trimethyl Ammonio Hydroxypropyl Chloride Hydroxyethyl Cellulose 0.4
Glucocerebroside 0.3
Coconut oil fatty acid diethanolamide 0.3
Hydroxytandiphosphonic acid 0.2
Disodium edetate 0.2
Purified water balance
100 ml

[Hair cosmetic D]
(W / v%)
Sodium bromate 6.0
Cetanol 10.0
Liquid paraffin 8.0
Polyoxyethylene cetyl ether 3.0
Concentrated glycerin 2.0
Coconut oil fatty acid amide propyl betaine 2.0
2-Ethylhexyl palmitate 1.0
Jojoba oil 1.0
Shea butter 1.0
Hydroxyethanediphosphonic acid 0.2
Hydroxyethanediphosphonate tetrasodium 0.2
Dipotassium glycyrrhizinate 0.1
L-Arginine 0.1
Sodium hyaluronate 0.1
Disodium hydrogen phosphate Appropriate amount Lactic acid Appropriate amount
Purified water balance
100 ml

In the following Examples / Comparative Examples, each characteristic was evaluated by the following method.
(Professional panelist)
An example of the right half in which low-molecular-weight mucopolysaccharide was applied with a half-head according to the following procedure by trained female panelists, 6 for hair color treatment and 5 for permanent wave processing. A sensory test was conducted using the left half, which was not applied, as a comparative example.
(Test procedure)
For the six hair coloring panelists, first spray hair cosmetic A evenly on the hair on the right half of the head by spraying method, leave it for 5 minutes, and then apply hair cosmetic B to the entire hair. After being left for a while, it was rinsed with shampoo, brushed, dried and styled. For the five panelists who performed the permanent wave processing, first spray the hair cosmetic A evenly on the hair on the right half of the head by the spray method, leave it for 5 minutes, and then apply the hair cosmetic C to the hair. Apply by the method of application to the whole, then wrap the hair on the curl, leave it for a while and wash it with water, then apply the hair cosmetic D to the whole hair by the method of application, then wash it off with shampoo, brush and dry, I did the styling.
(Evaluation items and evaluation criteria)
Regarding the evaluation of this case, the thickness of the hair, the gloss of the hair, the firmness and elasticity of the hair, the feeling of introduction of (low molecular weight mucopolysaccharide) into the hair, the cohesiveness of the hair, the finger passage of the hair, the cohesiveness of the next day, the next day For finger passage, the right half of the head (Example) and the left half of the head (Comparative Example) were evaluated according to the following five evaluation criteria. The next day's unity and the next day's finger passage are evaluated 24 hours after the above hair color treatment and permanent wave processing are completed, and for other evaluation items, the finishing of various treatments is completed on the day of the test. It is an evaluation at the time of.

In the table below, each panelist (of which panelists A to F performed hair coloring treatment) for Examples (with: right half of the head) and Comparative Example (without: left half of the head) of the present invention was used. Yes, the panelists G to K are 5 panelists who have undergone permanent wave processing), and the average score of 11 panelists is shown. The average scores of the six panelists who received the hair coloring treatment were the hair thickness (Example: 4.00, Comparative Example: 2.83) and the hair gloss (Example: 4.66, comparison), respectively. Example: 2.83), firmness and elasticity of hair (Example: 4.50, Comparative Example: 2.50), actual feeling of introduction into hair (Example: 4.83, Comparative Example: 2.83), Hair Cohesiveness (Example: 4.33, Comparative Example: 2.50), Hair fingering (Example: 4.33, Comparative Example: 2.66), Cohesiveness of the next day (Example: 4.83, Comparison) Example: 3.00), the next day's finger passage (Example: 4.83, Comparative example: 3.00), and the average score of the five panelists who received the permanent wave processing was the thickness of their hair, respectively. (Example: 3.60, Comparative Example: 3.20), Gloss of Hair (Example: 4.40, Comparative Example: 3.80), Hair elasticity (Example: 3.80, Comparative Example) : 3.40), Real feeling of introduction to hair (Example: 3.80, Comparative example: 2.60), Hair cohesion (Example: 4.20, Comparative example: 3.60), Hair finger passage (Example: 4.60, Comparative Example: 3.80), Next day's unity (Example: 4.80, Comparative Example: 3.00), Next day's fingering (Example: 4.80, Comparative Example: 3.00).

As is clear from the above table, in the right half of the head to which the low molecular weight mucopolysaccharide was applied, the actual feeling of introduction of the low molecular weight mucopolysaccharide into the hair was clear compared to the left half of the head to which the low molecular weight mucopolysaccharide was not applied. It is recognized, and the texture of the hair such as thin hair, lack of elasticity, and poor finger passage, and the appearance of dull and uncoordinated hair are clearly improved. In addition, it has been shown that the effects of improving the feel of hair such as finger passage and the appearance of cohesiveness can be remarkably obtained the next day, and it has been shown that continuous hair modification, which has been considered particularly difficult in the past, is achieved. It has also been shown to be effective.

As a modification of the above Examples / Comparative Examples, instead of first applying the hair cosmetic A, regarding the hair coloring treatment, when the above compositions 1 and 2 are mixed to prepare the hair cosmetic B. In the method of blending and applying the low-molecular-weight hyaluronic acid so as to be 10 w / v%, and in the permanent wave processing treatment, the low-molecular-weight hyaluronic acid should be 10 w / v% in each of the hair cosmetics C and D. The same test was performed on the evaluation items in Table 1 above, but the same remarkable effects as in Table 2 above were observed for the hair color treatment, and the permanent wave processing treatment was performed. , There was a tendency for the difference from the comparative example to appear more clearly.

Claims (2)

The following steps 1) to 4) are included in this order, and the mucopolysaccharide of 1) below is one or more selected from hyaluronic acid, chondroitin sulfate, heparin and salts thereof, and is a hair cuticle. A hair modification method performed in the process of straightening curly hair, which comprises permeating the mucopolysaccharide into the inside of the hair in a state where the hair is opened and swollen.
1) Step of applying mucopolysaccharide with mass average molecular weight of 1,000 to 30,000 to hair 2) Step of applying alkaline agent and reducing agent to hair 3) Step of heating hair to straighten curly hair 4) The process of applying an oxidizing agent to hair The following steps 1) to 4) are included in this order, and the mucopolysaccharide of 1) below is one or more selected from hyaluronic acid, chondroitin sulfate, heparin and salts thereof, and is a hair cuticle. A hair modification method performed in the process of permanent wave processing, which comprises permeating the mucopolysaccharide into the hair in a state of opening and swelling.
1) Step of applying mucopolysaccharide with mass average molecular weight of 1,000 to 30,000 to hair 2) Step of applying alkaline agent and reducing agent to hair 3) Step of forming wave on hair 4) Oxidizing agent on hair Process to apply