JPH1179944A - Treatment of hair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To impart even damaged hair with adequate wiriness, and raise the resistance to the moisture content change around the hair, suppressiveness against moisture spreading and antistaticity. SOLUTION: This method for treating the hair comprises treating the hair with a shampoo containing pref. 3-18 wt.% of an amino acid-based anionic active agent and pref. 0.2-20 wt.% of a sucrose fatty acid ester followed by treating the resultant hair with a hair-protective agent containing pref. 0.1-10 wt.% of a brominated type cationic active agent and pref. 0.2-20 wt.% of a sucrose fatty acid ester.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of treating hair, and more particularly, to imparting sufficient flexibility to damaged hair (damaged hair) and resistance to moisture change around hair, The present invention relates to a hair treatment method capable of improving the suppression power for spreading, the antistatic ability, and the like.

[0002]

2. Description of the Related Art In order to remove hair stains, if the hair is washed with a shampoo, the shampoo removes not only the stains but also the oil which protects the surface of the hair, thereby losing the flexibility of the hair. The hair becomes crisp and becomes poorly combable, and hair damage, split ends, and broken hair are likely to occur.

[0003] Therefore, in order to prevent the adverse effects of shampoos, hair protectors such as hair rinses, hair treatments, and hair conditioners have been used.

[0004] However, conventional methods for treating hair with shampoos and hair care agents cannot impart sufficient flexibility to damaged or curly hair, and have a resistance to moisture change around the hair. Also, the ability to suppress the spread and the antistatic ability could not be sufficiently increased.

[0005]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems in the conventional hair treatment method, and can impart sufficient flexibility to damaged hair and curly hair, and An object of the present invention is to provide a hair treatment method capable of improving the resistance to moisture change around the hair, the suppression of spread, the antistatic ability, and the like.

[0006]

Means for Solving the Problems The present inventors have made intensive studies to solve the above problems, and as a result, treated the hair with a shampoo containing an amino acid-based anionic activator and a sucrose fatty acid ester. Then, when treated with a hair protecting agent containing a brominated type cationic activator and a sucrose fatty acid ester, sufficient flexibility can be imparted to damaged hair and curly hair, and The present inventors have found that it is possible to sufficiently enhance the resistance to moisture change around the hair, the suppression of spread, the antistatic ability, and the like, and have completed the present invention.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The shampoo used in the present invention contains an amino acid-based anionic activator and a sucrose fatty acid ester as described above. Examples of the amino acid-based anionic activator include potassium N-coconut fatty acid hydrolyzed yeast, potassium N-coconut fatty acid hydrolyzed corn protein, and N-coconut fatty acid acyl. Hydrolyzed potato protein potassium, N-coconut fatty acid acylglycine potassium solution, N-coconut fatty acyl-L-glutamic acid, N-coconut fatty acid acyl-L-glutamate, N-coconut fatty acyl-L-glutamic acid Triethanolamine liquid, N-coconut fatty acid acyl-L-glutamate sodium N-coco oil fatty acid / hardened tallow fatty acid acyl-L-glutamate sodium, coco oil fatty acid sarcosine, coco oil fatty acid sarcosine triethanolamine, coco oil fatty acid sarcosine sodium, coco oil fatty acid / oxidized hydrolyzed keratin potassium solution, coco oil fatty acid Taurine sodium, coconut oil fatty acid methylalanine sodium solution, coconut oil fatty acid methyltaurine potassium, coconut oil fatty acid methyltaurine sodium, coconut oil fatty acid methyltaurine magnesium solution, coconut oil fatty acid lysine solution, lauroyl hydrolyzed collagen potassium, lauroyl hydrolyzed silk sodium Liquid, N-lauroyl-L-glutamic acid, potassium N-lauroyl-L-glutamate,
Sodium N-lauroyl-L-glutamate, triethanolamine lauroyl-L-glutamate, lauroyl sarcosine, lauroyl sarcosine triethanolamine, N-lauroyl-N-methyl-β-alanine, N-lauroyl-N-methyl-β- Alanine triethanolamine solution, sodium lauroylmethyl-β-alanine solution, Nε-lauroyl-L-lysine and the like.

[0008] The content of the amino acid-based anionic surfactant in the shampoo is preferably 3 to 18% by weight, particularly preferably 4 to 15% by weight. If the content of the amino acid-based anionic surfactant in the shampoo is less than the above range, the foaming or detergency is reduced, the effect of imparting flexibility to the hair, the resistance to moisture changes around the hair, Suppressing power, antistatic ability, etc. may be reduced, and when the content of the amino acid-based anionic surfactant in the shampoo is more than the above range, the ability to form a complex salt with the hair protecting agent becomes too strong, and the As a result, there is a possibility that the effect of imparting flexibility to the hair, the resistance to moisture change around the hair, the suppression of spreading, the antistatic ability, etc. may be reduced.

However, the amino acid-based anionic activator may be used in combination with a conventional anionic activator, nonionic activator, amphoteric activator or cationic activator.

On the other hand, typical sucrose fatty acid esters include, for example, sucrose stearate, sucrose laurate, sucrose palmitate, sucrose oleate, and the like. Also, coconut oil fatty acid sucrose ester, trehalose and the like can be used.

The content of the sucrose fatty acid ester in the shampoo is 0.2 to 20% by weight, especially 0.5 to 5%.
% By weight is preferred. When the content of the sucrose fatty acid ester in the shampoo is less than the above range, the effect of imparting flexibility to the hair, the resistance to moisture change around the hair, the suppression of spreading, the antistatic ability, and the like are reduced. If the content of the sucrose fatty acid ester in the shampoo is more than the above range, the viscosity of the shampoo becomes strong and the shampoo remains on the hair too much, thereby inhibiting the action of the hair protecting agent. As a result, there is a possibility that the function of imparting flexibility to the hair, the resistance to moisture change around the hair, the suppression of spread, the antistatic ability, and the like may be reduced.

The above-mentioned shampoo is prepared by adding an amino acid-based anionic surfactant and a sucrose fatty acid ester, and the preparation can be carried out in substantially the same manner as a conventional shampoo.

That is, it is prepared by dissolving an amino acid-based anionic activator and a sucrose fatty acid ester in water or a solution obtained by adding a suitable solvent to water. Other components can be added.

Examples of such additional components include:
Cationic cellulose, cationic guar gum, polyallyldimethylammonium chloride, polyvinylpyrrolidone, cationic polymers such as polyethyleneimine, amphoteric polymers, synthetic polymers such as anionic polymers,
Isostearic acid diethanolamide, undecylenic acid monoethanolamide, oleic acid diethanolamide, bovine fatty acid monoethanolamide, hardened bovine fatty acid diethanolamide, stearic acid diethanolamide, stearic acid diethylaminoethylamide, stearic acid monoethanolamide, myristic acid diethanolamide, Coconut oil fatty acid ethanolamide, coconut oil fatty acid diethanolamide, lauric acid isopropanolamide,
Thickeners such as lauric acid ethanolamide, lauric acid diethanolamide, lanolin fatty acid diethanolamide, waxes, paraffins, fatty acid esters, glycerides, oils and fats such as animal and vegetable oils, animal and vegetable extracts, and N- Quaternary ammonium derivatives having an alkyl chain of 1 to 4, such as trimethylammonio-2-hydroxypropyl derivatives, triethylammonio-2-hydroxypropyl derivatives, and diethylmethylammonio-2-hydroxypropyl derivatives; Quaternary ammonium derivatives having an alkyl chain of 8 to 22, such as coconut oil fatty acid dimethylammonio-2-hydroxypropyl derivative, stearyl dimethylammonio-2-hydroxypropyl derivative, polysaccharides and the like. Derivatives, polyhydric alcohols such as glycerin, propylene glycol, 1,3-butylene glycol, and ethylene glycol; lower alcohols such as propanol and isopropanol; higher alcohols such as cetanol, stearyl alcohol, oleyl alcohol, and behenyl alcohol; L-asparagine acid,
L-sodium aspartate, DL-alanine, L-
Amino acids such as arginine, glycine, L-glutamic acid, L-cysteine, L-threonine, glycyrrhizic acid, licorice derivatives including carbenoxolone dinaolium, allantoin, guaiazulene, aloe, α-
Anti-inflammatory agents such as Bizabororu, salicylic, zinc pyrithione, piroctone olamine, sulfur, selenium sulfide, triclosan, resorcinol, vitamin A, antidandruff agents such as vitamin B _6, collagen, keratin, silk, sericin, casein, soybean, adzuki bean, There may be mentioned protein hydrolysates or esters thereof derived from animals, plants and microorganisms such as corn, potato, yeast, and mushrooms.

The hair protective agent used in the present invention contains a brominated type cationic active agent and a sucrose fatty acid ester. Examples of such a brominated type cationic active agent include, for example, stearyl bromide. Trimethylammonium, cetyltrimethylammonium bromide, lauryltrimethylammonium bromide and the like.

The content of the brominated type cationic active agent in the hair protecting agent is 0.1 to 10% by weight, particularly 0.1 to 10% by weight.
5 to 5% by weight is preferred. When the content of the brominated type cationic active agent in the hair protective agent is less than the above range,
The effect of imparting flexibility to the hair, the resistance to moisture changes around the hair, the suppression of spreading, and the antistatic ability may be reduced, and the bromination-type cationic active agent is contained in the hair protective agent. If the amount is more than the above range, a stable preparation cannot be obtained, and the hair tends to flow down from the hair, and as a result, the action of imparting flexibility to the hair, the resistance to moisture change around the hair, and the suppression of spreading are suppressed. Force and antistatic ability may be reduced.

This bromide type cationic activator is a main material for imparting flexibility to hair.
This bromide-type cationic activator can be used in combination with a conventional cationic activator.

On the other hand, typical sucrose fatty acid esters include sucrose stearate, sucrose laurate, sucrose palmitate, sucrose oleate and the like, as in the case of shampoo. In addition, sucrose coconut oil fatty acid ester, trehalose and the like can be used.

The content of the sucrose fatty acid ester in the hair protecting agent is 0.2 to 20% by weight, especially 0.5 to 5% by weight.
% By weight is preferred. When the content of the sucrose fatty acid ester in the hair protective agent is less than the above range, the effect of imparting flexibility to the hair, the resistance to moisture change around the hair, the suppression of spread, the antistatic ability, and the like are obtained. If the content of the sucrose fatty acid ester in the hair protective agent is more than the above range, a stable preparation cannot be obtained, and the effect of imparting flexibility to the hair may be reduced.

The hair protectant used in the present invention is prepared by adding a bromide-type cationic activator and a sucrose fatty acid ester as described above. It can be performed by almost the same method.

That is, it is prepared by dissolving the above-mentioned bromide-type cationic activator and sucrose fatty acid ester in water or a liquid obtained by adding an appropriate solvent to water, but the effects thereof are not impaired. Other components can be appropriately added within the range.

Examples of such additional components include:
An emulsifier, a wetting agent, an anionic activator, a nonionic activator, an oil component, a preservative, a fragrance, a coloring agent, a chelating agent, and the like can be appropriately added.

The method of treating hair according to the present invention can impart sufficient flexibility to damaged hair, and enhance the resistance to moisture change around the hair, the suppression of spread, and the antistatic ability. The mechanism by which shampoos can be produced is not always clear at present, but the amino acid-based anionic surfactant and sucrose fatty acid ester contained in the shampoo and the brominated type cationic surfactant and sucrose contained in the hair protectant The fatty acid ester forms a film on the hair to impart sufficient flexibility to damaged hair, and the film has a water regulating action, and regulates the moisture of the hair to change the surrounding water. The film has an antistatic ability mainly based on sucrose fatty acid ester, Presumably due to suppress the spread decreased the coulometric.

[0024]

Next, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to only these examples. In the following examples,% indicating the concentration of the solution or dispersion is% by weight.

Example 1 and Comparative Example 1 The shampoo used in Example 1 and Comparative Example 1 was prepared with the composition shown in Table 1, and the hair protectant used in Example 1 and Comparative Example 1 was prepared with the composition shown in Table 2. did. The unit of the numerical value indicating the blending amount of each component in the table is part by weight.

[0026]

[Table 1]

[0027]

[Table 2]

Using the shampoos of Example 1 and Comparative Example 1, the hair (damaged hair subjected to permanent wave treatment after bleaching treatment) was shampooed (washing-washing treatment), and then treated as in Example 1 and Comparative Example 1. The hair protectant was treated with the hair protectant, and the flexibility of the hair after the treatment, the resistance to changes in ambient moisture, the suppression of spreading, and the antistatic ability were examined. Table 3 shows the results. In the above treatment, what was treated with the shampoo of Example 1 was treated with the hair protecting agent of Example 1,
What was treated with the shampoo of Comparative Example 1 was treated with the hair protectant of Comparative Example 1.

In the above-mentioned treatment, the hair is made into a hair bundle, and details of the hair bundle composed of the damaged hair, details of the shampooing treatment and the treatment with the hair protecting agent, the flexibility of the hair, and the change in surrounding moisture are considered. Test methods for resistance, suppression of spread, and antistatic ability are as follows.

Hair bundle used: A hair bundle of 18 cm in length and 8.7 g in weight made of uniform female healthy hair (this hair bundle is tied at one end with a thread and the other end is free end, 5% polyoxyethylene (9E)
O) Lauryl ether aqueous solution (however, EDTA-Na
Was washed with a hydrogen peroxide-based bleaching agent, and then the hair bundle was wound around a rod having a diameter of 10 cm, and wave-treated with a cysteine-based permanent waving agent.

The hair bundle produced as described above is damaged by the bleaching treatment and the subsequent wave treatment, and is easily affected by a change in the surrounding environment such as a change in the surrounding water and easily charged. At the same time, the spread of the free end side is increased by the above-mentioned wave processing, and the skirt shape is spread from the fixed end side to the free end side.

Shampoo treatment: Using each shampoo at a ratio of 6 ml per hair bundle, the hair bundle is washed with lukewarm water, washed with water, and washed and washed again as described above.

Treatment with Hair Protecting Agent: 6 g of each hair protecting agent is used per hair bundle, and this is applied to the shampoo-treated hair bundles, and then thoroughly washed with each hair, followed by washing with water.

Flexibility: After the hair bundle after the treatment with the shampoo and the hair protecting agent is air-dried, 10 panelists have higher flexibility in either the hair treated in Example 1 or the hair treated in Comparative Example 1. The results are shown in Table 3 and the results are shown in Table 3. The number of persons who evaluated that the hair treated in Example 1 had higher flexibility and the hair treated in Comparative Example 1 evaluated that the hair had higher flexibility. Indicated by the number of participants.

Resistance to change in ambient moisture: The hair bundle after the treatment with the shampoo and the hair protectant is stored in an atmosphere adjusted to a constant humidity, and the change in the moisture content of the hair before and after the storage indicates that Investigate the resistance to ambient moisture changes.

That is, after the hair bundle after the above treatment is air-dried, a part of the hair in the bundle is heated at 180 ° C. for 15 minutes by the Karl Fischer method to measure the water content. We assume moisture.

Next, the remaining hair was treated at 25 ° C. and a relative humidity of 4
After storing for 72 hours in an atmosphere of 0% and controlling the humidity, the content of water was measured by heating at 180 ° C. for 15 minutes by the Karl Fischer method, and this was used as the post-preservation water, and the change in water content due to preservation was calculated according to the following formula. Find the rate.

[0038]

In the water change rate obtained from the above equation, the smaller the value is, the more excellent the resistance to the change of the surrounding water is. Therefore, in the display in Table 3, both Example 1 and Comparative Example 1 The reciprocal of the water change rate was determined, and the “resistance to surrounding water change” is indicated by an index value (rounded off below the decimal point) converted to the value of Comparative Example 1 as 100.
According to the index, the greater the value, the better the “resistance to changes in ambient moisture” of the hair.

Suppressive power against spread: After the hair bundle after the treatment with the shampoo and the hair protectant was air-dried, the width of the middle part of the hair bundle was measured with a vernier caliper. After being stored in an atmosphere of 40% humidity for 72 hours, the width of the middle part of the hair bundle is measured again with a caliper, and the hair is calculated from the width of the hair bundle after storage and the width of the hair bundle before storage according to the following formula. Find the spread rate of

[0041]

In the spread ratio of the hair obtained from the above formula, the smaller the value is, the more excellent the suppressing effect on the spread of the hair is. Comparative Example 1
The exponential value (rounded off below the decimal point) is converted to a value of 100, and indicates the "suppressive power against spread". According to this index display, the larger the value is, the more excellent the “suppressing power against spreading” of the hair is.

Antistatic ability: After the hair bundle after the treatment with the shampoo and the hair protecting agent was air-dried, the hair bundle was combed with a comb electrode manufactured by Nippon Rheology Co., Ltd., and the amount of static electricity generated at that time was measured universally. It was measured using an electrometer, and this was taken as the charge amount before storage. Then, after storing the hair bundle in an atmosphere at 25 ° C. and a relative humidity of 40% for 72 hours, the amount of static electricity was measured again as described above. The change rate of the charge amount is determined by the following equation using the charge amount after storage as the charge amount.

[0044]

In the rate of change of the charge amount obtained from the above equation, the smaller the value is, the better the antistatic ability is. Of the rate of change of
The "antistatic ability" is indicated by an index value (rounded off below the decimal point) converted as follows. The higher the index value, the better the "antistatic ability" of the hair.

[0046]

[Table 3]

As shown in Table 3, the hair treated in Example 1 had a high flexibility and a high evaluation value with respect to the resistance to the change of the surrounding water, the suppression of the spread, and the antistatic ability. That is, after treatment (washing-washing) with a shampoo containing N-lauroyl-L-glutamate triethanolamine and sucrose laurate belonging to the amino acid anion activator, bromide belonging to the bromide type cationic activator In the case of Example 1, which was treated with a hair protectant containing stearyltrimethylammonium and sucrose stearic acid ester, suitable flexibility was given to damaged hair, and resistance to moisture changes around the hair, The ability to control the spread and the antistatic ability were able to be improved.

On the other hand, treatment with a shampoo containing no N-lauroyl-L-glutamate triethanolamine or sucrose laurate ester belonging to the amino acid type anionic activator, and then the odor belonging to the bromide type cationic activator. In the case of Comparative Example 1 which was treated with a hair protectant containing no stearyltrimethylammonium bromide or sucrose stearate, the flexibility of the hair was lower than that of Example 1 and the change in moisture around the hair was reduced. Resistance, spreading suppression, antistatic ability, etc. were low.

[0049]

As described above, according to the present invention,
Sufficient flexibility can be imparted even to damaged hair, and resistance to moisture change around the hair, suppression of spreading, and antistatic ability can be increased.

Continued on the front page (72) Katsumi Kanayama 2-17-2 Akakawa, Asahi-ku, Osaka-shi Milbon Co., Ltd.

Claims (2)

[Claims] 1. A hair is treated with a shampoo containing an amino acid-based anionic surfactant and a sucrose fatty acid ester,
Then, the hair is treated with a hair protecting agent containing a brominated type cationic activator and a sucrose fatty acid ester. 2. The shampoo has a content of the amino acid-based anionic activator of 3 to 18% by weight and a content of the sucrose fatty acid ester of 0.2 to 20% by weight. The hair treatment method according to claim 1, wherein the content of the cationic surfactant is 0.1 to 10% by weight and the content of the sucrose fatty acid ester is 0.2 to 20% by weight.