JPH06287110A - Hair cosmetic - Google Patents

Abstract

PURPOSE:To obtain a new hair cosmetic preventing damage of hair, eliminating a dry feeling of hair, providing hair with smoothness, moist feeling, luster, strength, etc. CONSTITUTION:A hair cosmetic contains trehalose or trehalose and at least one amino acid or a salt of amino acid. The hair cosmetic causes neither browning nor change of color, has excellent emulsion stability in terms of quality, protects hair and provides hair itself with strength. The hair cosmetic has durability of water retention of hair, suppressing action on static electricity and provides hair with smoothness, moist feeling and luster and improves combing properties.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention has a hair protecting effect, an antistatic effect, a water retention function and the like, thereby eliminating the dry feeling of the hair and giving the hair suppleness and strength.
The present invention relates to a novel hair cosmetic having an excellent effect of suppressing hair damage.

[0002]

[Prior art]

As is well known, the hair component is composed of a protein called keratin. This protein called keratin is not only for hair but also for nails and skin horny layer components, but hair and nails are called hard keratin, and skin horny layer is called soft keratin, and the hard keratin of this hair component is very strong and usually Unlike other proteins, it is less likely to rot and is resistant to chemicals. However, hair is damaged and deteriorated due to various external factors. When raising the cause, first of all, even in a natural state, it is exposed to environmental factors (sunlight: ultraviolet rays, infrared rays), and further physical Factors (brushing, heat from dryers, friction, drying, etc.), chemical factors (acids such as hair perm, hair dye, hair bleach, alkalis, oxidizing agents, reducing agents, etc.) are involved, and these occur simultaneously. In addition, hair damage is increased.

Also, due to these external factors, the water content (usually 11 to 13%) of the hair in a healthy person's natural state disappears, and the hair dries and loses its dryness, texture and gloss. . Furthermore, it is said that splitting hairs and broken hairs occur due to damage to the surface of the hair, and the original strength of the hair decreases. In addition, hair does not change or be damaged by external factors such as changes in the amino acid composition that is a constituent of hair, abnormal amino acid formation, or elution of amino acids generated by decomposition of keratin. It is said that, therefore, hair that has once been damaged has no repairing ability unlike skin, and will become permanently damaged hair.

Therefore, as described above, since the hair does not have the ability to self-repair and regenerate the damage, what is important is how to protect the damage from the outside in the case of damaged hair. Also, in the case of normal hair, it is important to prevent external factors so as not to cause damaged hair. That is, by preventing these causes, both normal hair and damaged hair will endow with smoothness, strength, flexibility and luster of the hair.

Conventionally, in order to make up for these points, hair cosmetics have an oil content such as silicone oil and paraffin oil, a moisturizing agent such as glycerin, and various surfactants.
Animal and plant extracts from natural products, proteins, amino acids, polysaccharides, natural polymers and the like are mixed and used.

[0007]

However, the conventional hair cosmetics have some effects in terms of smoothness and moisturization to the hair.
All of them were not satisfactory in sustainability of the effect, and were still unsatisfactory in terms of smoothness, suppleness, gloss and the like of the hair and poor stability.

[0008]

Means for Solving the Problems As a result of intensive studies, the present inventors have found that hair cosmetics contain trehalose. Further, they have found that the above problems can be satisfied by containing one or more amino acids consisting of trehalose and amino acids or salts thereof, and completed the present invention.

That is, the present invention is a hair cosmetic composition containing trehalose. It also provides a hair cosmetic containing trehalose and at least one amino acid or amino acid salt.

The trehalose used in the present invention (Trehal
ose) is a kind of disaccharide in which two molecules of D-glucose are bound to each other by reducing groups, is a non-reducing sugar, and has the following structure.

[0011]

[Chemical 1]

The trehalose of the present invention, or the trehalose and amino acid or amino acid-containing substance containing these salts, is applied to the hair in various forms such as emulsion, wax, solid, spray, solution, powder and gel. Can be used by rubbing. In addition, it is added to a known base for hair cosmetics and the like by a conventional method to give a hair cream, a hair rinse, a hair tonic, a hair treatment, a hair conditioning, a set lotion, a hair oil, a hair spray, a shampoo, a hair dye, and the like. It can also be used as a drug solution for medicines, quasi drugs, and cosmetics (including various preparations used for humans and other animals and plants).

In addition, vitamins (vitamin A, vitamin B, vitamin C, vitamin E, etc.), astringents (allantoin, tannic acid, etc.), various surfactants (cationic.
Anionic / amphoteric / nonionic surfactants), colorants (gardenia yellow, β-carotene, paprika, shikonin, chlorophyll, etc.), fragrances, animal and plant extracts, function enhancers, fungicides, antiseptics, antiseptics It is stable against oxidants, ultraviolet absorbers, chelating agents, thickeners, moisturizers, solvents, and other various additives, pharmaceuticals, cosmetics bases, and is compounded with these commonly used agents. It is also effective when used in combination. Further, it can also be used in the food field.

The trehalose and amino acids of the present invention, or amino acids consisting of salts thereof, may be commercially available products, and may be extracts from animals and plants, microbial culture products, or those obtained by synthetic methods. Further, trehalose in the crystalline state usually exists as a dihydrate crystal, but the trehalose used in the present invention may be a dihydrate or an anhydrate.
Of course, it may be solid, solution, or gel. The amino acids include valine, leucine, isoleucine, threonine, methionine, phenylalanine, tryptophan,
Lysine, glycine, alanine, asparagine, glutamine, serine, cysteine, cystine, tyrosine, proline, hydroxyproline, aspartic acid, glutamic acid, hydroxylysine, arginine, ornithine, histidine, and amino acid salts (sulfate, phosphate, Nitrate, citrate, etc.) can also be used. Of course, amino acid derivatives (pyrrolidone carboxylic acid, etc.) can also be used.

Further, the amount of each compound is 0.1% by weight or more (hereinafter, unless otherwise specified,% means% by weight). Preferably, trehalose (converted to trehalose anhydrous: hereinafter, trehalose). The concentrations are all expressed in terms of anhydride), and the concentration is preferably 3.0% or more, and the concentration of amino acids or amino acids composed of these salts is preferably 5.0% or more.

The characteristic properties of the hair cosmetic composition of the present invention are described below.

The color stability of the hair cosmetic composition of the present invention is shown in Table 1.
As shown in Example 1, no coloring is shown even after 10 weeks.

As for the tensile strength of the hair, as shown in Table 2, the strength of the hair itself is increased, and good results having a protective effect on the hair can be obtained.

Further, as to the antistatic action, as shown in Table 3, trehalose, or trehalose and amino acids give very good results as compared with the case of using other saccharides.

Further, as shown in Table 4, the water retention of the hair, smoothness, moisturizing feeling, gloss are improved, combability is good, and stability of emulsification is comparable to that of the present invention. Good results are obtained in comparison with the product.

Hereinafter, the present invention will be described in detail based on Examples, but it goes without saying that the present invention is not limited thereto.

[0022]

【Example】

Example 1 (Color Stability Test) Test Method and Evaluation Method Each sample and a comparative product were prepared and stored in a constant temperature bath at 50 ° C., and the stability with time was visually examined. The evaluation method was performed in the following three stages. -: No coloring is seen. ±: slightly colored. +: Coloring. Sample: trehalose 5% solution, trehalose 5% solution + amino acid mixture 20% solution, comparative product: amino acid mixture 20% solution, lactose 5% solution, glucose 5% solution, lactose 5% solution + amino acid mixture 20% solution, The results are shown in Table 1 using a 5% glucose solution + 20% amino acid mixture solution.

The composition ratio (% by weight) in the amino acid mixture is as follows: arginine hydrochloride, histidine hydrochloride,
Aspartic acid: Glutamic acid: Isoleucine: Threonine: Valine: Alanine = 15: 15: 15: 15: 1
0: 10: 10: 10 was used, and the composition of the amino acid mixture of Examples 2-13 below was also the same.

[0025]

[Table 1]

Test results As shown in Table 1, it was confirmed that the trehalose solution of the present invention or the trehalose solution to which the amino acid mixture was added did not show coloring even in the long term. From these results, it can be confirmed that trehalose is a non-reducing sugar and therefore does not undergo the Maillard reaction and is stable. On the other hand, it was confirmed that the comparative product (amino acid mixture + grapes or lactose: reducing sugar) was colored.

Example 2 (Tensile Strength Test) Test Method and Evaluation Method Permanent Wave Agents (First Agent / Second Agent)
Formulation), prepare 50 untreated human hair, rinse with warm water and rinse for 10 minutes.
Soak for 1 minute, then rinse with warm water, then rinse with second agent for 40 minutes, rinse again with warm water, rinse 1
It was dried for 0 minutes and the tensile strength was measured. In the measurement, untreated human hair having a uniform length of about 10 cm was pulled one by one at a speed of 2 cm / min, and the load at break was determined. The tensile strength was measured using a tensilon meter: manufactured by Toyo Baldwin, and conditions: temperature 20
Evaluation was performed at a temperature of 60 ° C and a humidity of 60%. The numerical values in Table 2 represent average values, and the results are shown in Table 2.

First agent 50% ammonium thioglycolate 20.0% 80% monoethanolamine 1.5 EDTA 0.06 25% ammonia water 0.8 Specimen and comparative product described in Example 1 5.0 Purified water Was set to 100%. Second agent sodium bromate 6.0% Made to be 100% with purified water.

[0029]

[Table 2]

Test Results As shown in Table 2, the trehalose solution of the present invention or the first agent-treated human hair obtained by adding the amino acid mixture to the trehalose solution was treated with other sugars (grape or lactose: reducing sugar). In comparison, good results were obtained in which the breaking load showed a high value, the strength of the hair itself increased, and the hair also had a protective effect.

Example 3 (Antistatic Action Test) Test Method and Evaluation Method 30 female panelists were divided into 6 groups of 5 groups each, and 5 g of hair rinses of the present invention product and the comparative product shown in Table 4 were given. After washing the hair with a commercial shampoo and rinsing well with warm water, actually applying each hair rinse directly to the hair, allowing it to penetrate well, rinsing with warm water and air-drying, and measuring the charge amount (static electricity) . In addition, the measurement was carried out using a Kyoto University Kaken rotary electrostatic tester under the condition: temperature 2
The evaluation was performed at 0 ° C. and a humidity of 60%. The numerical values in Table 3 represent average values, and the results are shown in Table 3.

[0032]

[Table 3]

Test results As shown in Table 3, when blended in hair rinse, trehalose of the present invention or trehalose to which an amino acid mixture was added was compared with the case where lactose was used.
It was confirmed that the effect of preventing static electricity was strong.

Example 4 (Persistence of Moisture Retaining Effect) Test Method and Evaluation Method Human hair (weight: 4 g, length: 10 cm) was coated with 5 g of the hair rinse shown in Table 4 below, rinsed with warm water and rinsed for 10 minutes.
After air-drying for a minute, it was stored under constant humidity, and the water content immediately after and after 3 hours was measured, and the change rate was obtained to evaluate the persistence of the effect. The evaluation method was carried out by the following three-stage evaluation of AC, and the results are shown in Table 4. Evaluation A: Change rate of less than 50%. Evaluation B: Change rate of 50% or more and less than 70%. Evaluation C: Change rate of 70% or more.

Example 5 (Emulsion Stability Test) Test Method and Evaluation Method 5 g of hair rinse shown in Table 4 below was used at -5 ° C., 0 ° C., and 2 ° C.
After storing at 5 ℃ and 45 ℃ for 1 month, separate the system,
The cosmetics that were in an unsuitable state due to aggregation were evaluated as x, and the good ones were evaluated as o. The results are shown in Table 4.

Example 6 (Sensory Feeling Test: Smoothness / Moisture Feeling) Test Method and Evaluation Method 30 female panelists were divided into 6 groups with 5 persons in each group, and each of the invention product and the comparative product shown in Table 4 below. Hand over 5g of hair rinse, wash your hair with a commercial shampoo, rinse well with warm water, then apply each hair rinse directly onto your hair, let it soak well, rinse with warm water, and rinse with air, then smooth the skin. A sensory evaluation was made on the moist feeling. In addition, the evaluation method was the following 1-3 evaluation, and the average value of 5 persons was measured, and the results are shown in Table 4. Evaluation 3: Good. Evaluation 2: Normal. Evaluation 1: Bad.

Example 7 (Sensory Feeling Test: Shiny Hair) Test Method and Evaluation Method 30 female panelists were divided into 6 groups of 5 groups each, and the hair rinses of the invention product and the comparative product shown in Table 4 below were obtained. After handing over 5 g, washing the hair with a commercial shampoo, rinsing well with warm water, then applying each hair rinse directly to the hair, allowing it to permeate well, rinsing with warm water, and rinsing with air. I got it evaluated. still,
The evaluation method was the following three-level evaluation of 1-3, and the average value of 5 persons was measured, and the results are shown in Table 4. Evaluation 3: Shiny. Evaluation 2: There is a gloss. Evaluation 1: Matte.

Example 8 (Sensory sensory test: Combability) Test method and evaluation method 30 female panelists were divided into 6 groups of 5 groups each, and the hair rinses of the present invention and comparative products shown in Table 4 below were obtained. Hand over 5 g, wash your hair with a commercial shampoo, rinse thoroughly with warm water, then apply each hair rinse directly onto your hair, allow it to permeate well, rinse with warm water, then rinse with air, and ease of combing after drying. I got a sensory evaluation.
In addition, the evaluation method was the following 1-3 evaluation, and the average value of 5 persons was measured, and the results are shown in Table 4. Evaluation 3: Good. Evaluation 2: Normal. Evaluation 1: Bad.

A hair rinse having the composition shown in Table 4 was prepared, and the durability of the water retention effect of the hair, the smoothness of the hair, the moist feeling, the gloss of the hair, the combability, and the emulsion stability were evaluated together with a comparative product. did.

[0040]

[Table 4]

Test Results The results are shown in Table 4, and the products 1-2 of the present invention have a longer retention of water on the hair, smoothness of the hair, moist feeling, gloss, combability, and stability of emulsification as compared with the comparative product. Overall, good results were obtained.

Example 9 Hair Cream A hair cosmetic composition was prepared by adding the trehalose, amino acid mixture and lactose shown in Table 4 to the following composition in the same manner, and evaluated in the same manner as in Examples 4-8. Self-emulsifying glyceryl monostearate 3.0% Monostearin polyoxyethylene sorbitan (20E.O.) 3.0 Reduced lanolin 3.0 Borax 0.5 Glycerin 3.0 Carboxyvinyl polymer 0.2 Antioxidant Suitable Quantity Fragrance Suitable quantity Made to 100% with purified water.

Example 10: Hair Liquid A hair cosmetic composition was prepared by adding trehalose, an amino acid mixture and lactose shown in Table 4 to the following composition in the same manner, and evaluated in the same manner as in Examples 4-8. Polyoxypropylene 20.0% Butyl ether (40 P.O.) Ethanol 40.0 Fragrance Appropriate amount Dye / edetate Appropriate amount Purified water was made up to 100%.

Example 11: Set lotion A trehalose, an amino acid mixture and lactose shown in Table 4 were similarly blended in the following composition to prepare a hair cosmetic composition, and the same evaluation as in Examples 4-8 was carried out. Polyvinylpyrrolidone 2.0% Polyoxyethylene 2.0 Oleyl ether (20E.O.) Ethanol 25.0 Glycerin 2.0 Preservatives / Dyes Appropriate amount Perfume (including solubilizer) Appropriate amount Made to 100% with purified water .

Example 12: Hair Oil A hair cosmetic composition was prepared by similarly blending the trehalose, amino acid mixture and lactose shown in Table 4 in the following composition, and evaluated in the same manner as in Examples 4-8. Camellia oil 40.0% Silicone oil 30.0 Isypropyl myristate 20.0 Preservative proper amount perfume / pigment proper amount perfume solubilizer proper amount Made to 100% with purified water.

Example 13 Agent for Permanent Wave A hair cosmetic composition was prepared by adding trehalose, an amino acid mixture and lactose shown in Table 4 to the first composition in the same manner to prepare a hair cosmetic composition. The same evaluation as 4-8 was performed. First agent ammonium thioglycolate 8.0% ammonia water 1.6 liquid paraffin 0.6 lanolin 0.4 sorbitan monooleate 1.0 polyoxy monooleate 2.0 ethylene sorbitan (20E.O.) with purified water It was set to 100%. Second agent sodium bromate 5.0% diammonium phosphate 4.0 4.0 Made up to 100% with purified water.

In all of Examples 9 to 13, the products of the present invention are
Overall, good results were obtained with respect to the retention of water content, smoothness of hair, moist feeling, gloss, combability, and emulsion stability as a product, as compared with the comparative product. Also, in the tensile strength test of Example 13, good results showing a high numerical value for the weight at break were obtained. In addition, Examples 2-3 and 9-13 are manufactured by a conventional method for manufacturing each product.

[0048]

EFFECTS OF THE INVENTION Hair cosmetics containing trehalose of the present invention, or trehalose and at least one amino acid or an amino acid consisting of these salts do not cause brown or discoloration (because it is a non-reducing sugar, Maillard reaction) does not occur. The emulsion stability as a product is also excellent. In addition, it has a function of protecting the hair itself, and thus imparts strength to the hair by preventing damage, and further has an antistatic function and durability of water retention of the hair. Also, when using,
It has the effect of giving smoothness, moisturization, and gloss to the hair and improving combability. Therefore, it can be applied as a hair agent for pharmaceuticals, quasi drugs, cosmetics and the like as a field of application. Further, since it is already used in the food field, it can be said that it is extremely safe.

Claims (2)

[Claims] 1. A hair cosmetic composition comprising trehalose. 2. A hair cosmetic containing trehalose and at least one amino acid or amino acid salt.