JP2000302647A - Hair treatment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To impart a gross, moisture and tension to a hair, for preventing split hair and improving the smoothness and combing property, or the like, of the hair by heat-treating the hair used with a hair cosmetic containing a silylated peptide. SOLUTION: This method for treating hair is to use a hair cosmetic containing a silylated peptide on the hair and heat-treating the hair. The temperature at this time is preferably at 50-200 deg.C. Further, the silylated peptide is preferably a compound of the formula [at least one of R1 to R3 is hydroxyl group and the rests are each a 1-3C alkyl; R4 is a residue obtained by eliminating a terminal amino group from a basic amino acid having the amino group at the terminal of its side chain; R5 is an amino acid side chain except for the R4; A is a bonding chain such as methylene, propylene, or the like; (m) is 0-200, (n) is 0-200, (m+n) is 1-200]. By the treating method, it is possible to impart gross, moisture and tension to the hair, prevent split hair, smooth the surface of the hair and improve the moisture keeping capability of the hair.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair treatment method, and more particularly, to a method for imparting luster, moisture and beam to hair.
The present invention relates to a hair treatment method that prevents split ends, smoothes the surface of the hair, improves slipperiness and combability, suppresses evaporation of moisture from hair, and improves the water retention ability of hair.

[0002]

2. Description of the Related Art Conventionally, protein hydrolysates (hydrolyzed peptides) have been used in hair cosmetics such as shampoos, hair rinses, hair conditioners, hair treatment agents, hair creams, permanent waving agents, hair dyes and hair styling products. It has been practiced to treat hair by combining it with silicone oil. This is the excellent extensibility of silicone oil, the effect of imparting gloss and gloss to hair,
This is because the protective action by imparting water repellency to the hair, the sorption action of the hydrolyzed peptide on the hair, the protective action by film formation, the moisturizing action, and the like are exerted.

[0003] However, silicone oil is originally a lipophilic substance, and hydrolyzed peptides are essentially hydrophilic substances. Therefore, they are hardly compatible with each other, and silicone oil is added to water-soluble hair cosmetics. In this case, it was necessary to prevent the silicone oil from being separated by the emulsifier. In addition, during the treatment of hair, the hydrolyzed peptide hardly adheres to the portion that first comes into contact with the silicone oil, and conversely, the silicone oil hardly adheres to the portion that first comes into contact with the hydrolyzed peptide. Cannot be fully exhibited.

[0004] Therefore, the present inventors have developed a silylated peptide in which a functional group containing only one silicon atom is covalently bonded to the amino group of a peptide containing an amino group in the amino acid side chain, and this is used in hair cosmetics. By blending, it has been attempted to solve the above problem (for example, see JP-A-8-813).
No. 38, JP-A-8-81339, JP-A-8-81339
133934, JP-A-8-157344 and the like).

However, since the silylated peptide used in the above publication has few silyl groups bonded to the peptide chain, the hydrolyzed peptide exerts the effect of protecting the hair and the effect of imparting moisturizing properties, but has the effect of imparting water repellency. There has been a problem that the silicone oil is inferior to the silicone oil in terms of imparting, extensibility and smoothness.

[0006] The hydrolyzed peptide has an effect of imparting moisturizing properties to hair, but if the amount of sorption to the hair is too large, it may give a stiff feeling to the hair. The hair is treated with a hair cosmetic containing a hydrolyzed peptide and then dried with hot air for a long time using a hair dryer or under conditions where the hair is exposed to extreme low humidity for a long time. The resulting hydrolyzed peptide dries, and furthermore, the moisture in the hair is also lost, causing a feeling of dryness in the hair, and there is also a problem that the effects of the hydrolyzed peptide cannot be sufficiently exhibited.

[0007]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, imparts gloss, moisture, and beam to hair, prevents split ends, and smoothes the surface of hair to make it slippery. An object of the present invention is to improve the hair combing property, suppress the evaporation of water from hair, and improve the water retention ability of hair.

[0008]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, when using hair cosmetics containing a silylated peptide for hair and subjecting the hair to heat treatment, Forms a strong film on the hair, imparts luster, moisture, and beam to the hair, prevents split ends, smoothes the hair surface, improves slipperiness and combability, and removes moisture from the hair. The inventors have found that volatilization can be suppressed and the water retention ability of hair can be improved, and the present invention has been completed.

That is, the above-mentioned silylated peptide sorbs to the hair by the sorption action of the peptide portion, protects the hair and imparts moisture to the hair, and by heating the hair, the silyl group of the silylated peptide is heated. Hydroxyl groups directly connected to the silicon atom are bonded to each other, and the silylated peptide is polymerized,
A stronger and smoother film is formed on the hair, giving the hair a luster, smoothing the surface of the hair to improve slipping and combability and preventing split ends. In addition, the film formed on the hair and formed by polymerizing the silylated peptide suppresses evaporation of water from inside the hair and improves the water retention ability of the hair.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION As the hair cosmetic used in the present invention, various cosmetics can be used irrespective of the form as long as they contain a silylated peptide. For example, shampoo, hair rinse,
Examples include a hair conditioner, a hair treatment, a hair cream, a permanent wave agent, a hair dye, a hair dye, a hair styling agent, and a hair setting agent.

The silylated peptides contained in the hair cosmetics include, for example, the following general formula (I)

[0012]

Embedded image [In the formula, at least one of R ¹ , R ² , and R ³ represents a hydroxyl group, and the rest represents an alkyl group having 1 to 3 carbon atoms. R
⁴ represents a residue excluding the terminal amino group of a basic amino acid having an amino group at the terminal of the side chain, and R ⁵ represents an amino acid side chain other than R ⁴ . A is a bond, a methylene group, a propylene _{group, -CH 2 OCH 2 CH (OH} ) CH 2 - or -
A group represented by (CH ₂ ) ₃ OCH ₂ CH (OH) CH ₂ —, wherein m is 0 to 200, n is 0 to 200, and n + m
Is 1 to 200 (however, m and n only indicate the number of amino acids, not the order of amino acid sequences)]. JP-A-8-59424,
It can be manufactured by the method disclosed in JP-A-8-67608.

In the silylated peptide represented by the above general formula (I), ^one of R ¹ , R ² and R ³ is an alkyl group having 1 to 3 carbon atoms, and the other two are hydroxyl groups. When hair treatment is carried out using a hair cosmetic containing an activated peptide for hair, the effect of imparting gloss to the hair, smoothing the surface of the hair, and improving the combability of the hair is particularly remarkably exhibited. I do.

Examples of the peptide portion of the silylated peptide include a hydrolyzed peptide obtained by partially hydrolyzing an amino acid, a natural peptide, a synthetic peptide, or various proteins (proteins) with an acid, an alkali, an enzyme or a combination thereof. And the like.

Examples of the above amino acids include alanine, glycine, valine, leucine, isoleucine, proline, phenylalanine, tyrosine, serine, threonine, methionine, arginine, histidine, lysine, asparagine, aspartic acid, glutamine, glutamic acid, cystine, Cysteine, cysteic acid, tryptophan, hydroxyproline, hydroxylysine, O-phosphoserine, citrulline and the like can be mentioned.

The natural peptides include, for example, glutathione, bacitracin A, insulin, glucagon, oxytocin, vasopressin, and the like, and the synthetic peptides include, for example, polyglycine, polylysine, polyglutamic acid, and polyserine.

Examples of the hydrolyzed peptide include collagen (including gelatin which is a denatured product thereof), keratin, silk fibroin, sericin, casein, conchiolin, elastin, egg yolk proteins of eggs such as chicken and duck,
Proteins derived from animals and plants such as egg white protein, soy protein, wheat protein, corn protein, rice (rice bran) protein, potato protein, or yeast of the genus Saccharomyces, Candita, Endomycopsis, so-called beer yeast, sake yeast Microbial proteins, such as yeast proteins isolated from yeasts, proteins extracted from mushrooms (basidiomycetes), and proteins isolated from chlorella, are partially hydrolyzed with acids, alkalis, enzymes, or a combination thereof. And the like.

In the silylated peptide represented by the above general formula (I), R ⁴ is a residue excluding the terminal amino group of a basic amino acid having an amino group at the terminal of the side chain. Examples of basic amino acids having an amino group at the terminal of lysine, arginine, hydroxylysine, and the like. Further, R ⁵ represents a side chain of an amino acid other than R ^4, but as such acids, e.g., glutamic acid, aspartic acid, alanine, serine, threonine, valine, methionine, leucine, isoleucine, tyrosine, phenylalanine, proline , Hydroxyproline and the like.

In the silylated peptide represented by the above general formula (I), m is 0 to 200, preferably more than 0 and 50 or less (0 <m ≦ 50), more preferably 0
Larger than 10 (0 <m ≦ 10), and n is 0
~ 200, preferably 1-100, more preferably 2-40, and m + n is 1-200, preferably 2-100, more preferably 3-50, for the following reasons: Things.

That is, when m is larger than the above range, the number of silyl functional groups bonded to the amino group in the side chain increases, and the sorption effect of the peptide on the original hair decreases. , The properties of the silyl functional group portion cannot be sufficiently exhibited, and when m + n is larger than the above range, the sorption property and permeability to hair as a peptide are low. In addition to reducing the molecular weight of the peptide, the peptide tends to aggregate during storage and storage stability is reduced.

The above-mentioned m, n and m + n are theoretically integers. However, when the peptide portion is a hydrolyzed peptide as described above, the hydrolyzed peptide is obtained as a mixture of those having different molecular weights. Therefore, the measured value is an average value.

As the hair cosmetic containing a silylated peptide used in the present invention, any hair cosmetic containing a silylated peptide can be used, and the type and form of the hair cosmetic and the type of the silylated peptide can be used. Or the content. However, when a hair cosmetic having an extremely low content of the silylated peptide is used, the amount of the silylated peptide adhered to the hair is small, so that the polymerization of the silylated peptide due to the heat treatment does not occur much, Accordingly, the effect of imparting luster to the hair, protecting the hair, and improving the combability is not sufficiently exhibited. Therefore, in order to exert the effects of the present invention, it is necessary to use a hair cosmetic for hair. It is necessary to increase the number of times, and the treatment of hair becomes complicated and time-consuming. Conversely, when a hair cosmetic having an extremely high content of the silylated peptide is used, the high molecular weight of the silylated peptide due to the heat treatment may be excessively increased, and the hair may be stiff, resulting in poor hair styling properties. Therefore, the content of the silylated peptide in the hair cosmetic used in the present invention is slightly different depending on the type of the hair cosmetic, but is preferably 0.05 to 30% by weight, particularly preferably 0.5 to 2% by weight.
0% by weight is preferred. The silylated peptide in the hair cosmetic containing the silylated peptide may be used alone or in combination of two or more.

In the hair treatment method of the present invention, a hair cosmetic containing the silylated peptide as described above is applied to the hair, and the hair is washed away after use on the hair such as a shampoo, a hair rinse, a permanent waving agent, and a hair dye. In the case of type hair cosmetics, after washing away (however, the silylated peptide is sorbed on the hair and stays on the hair due to the sorption action of the peptide portion on the hair). In the case of non-washable hair cosmetics such as creams, hair styling products, and hair setting agents, the hair is used after heating the hair with a heating device such as a hair dryer, a heating trowel for hair, or a heater for heating hair. However, these heating appliances for hair may be of any type or form for home use, for business use in a hair salon, and the like.

The heat treatment temperature of the hair is preferably from 50 to 200 ° C, more preferably from 60 to 180 ° C. this is,
When the heat treatment temperature of the hair is lower than the above range, the silylated peptide does not sufficiently polymerize, and therefore, a strong film is not formed on the hair, and gloss, moisture, a beam is imparted to the hair, and split ends are formed. And the effect of improving the combability of hair may not be sufficiently exhibited, and if the heat treatment temperature of the hair is higher than the above range, the hair may be damaged by heating.

[0025]

According to the hair treatment method of the present invention, after using a hair cosmetic containing a silylated peptide represented by the silylated peptide represented by the general formula (I) on the hair, the hair is preferably treated for 50 hours. By heating at a temperature between 200C and 200C,
Hydroxyl groups directly connected to the silicon atom of the silyl group of the silylated peptide are bonded to each other, and the silylated peptide is polymerized,
Form a strong and smooth film on hair, add gloss, moisture, and beam to hair, prevent split ends, smoothen hair surface, improve slip and combability, remove moisture from hair Volatilization can be suppressed and the water retention ability of the hair can be improved.

[0026]

Next, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to only these examples. Prior to the description of the embodiment,
Evaluation of hair beam performed in the examples, evaluation of smoothness of the hair surface, measurement of the water retention ability of the hair, hair efficiency and wave retention of the hair performed in the examples such as treatment of hair setting agents and permanent wave agents A method of measuring the rate will be described.

[Evaluation Method of Hair Beam] A knot (knot) is made lightly at a substantially central portion (a central portion of hair of 15 cm in the embodiment) of hair of a fixed length as shown in FIG. The hair is put on the top, and a hair weight of 10 g is attached to the hair tip side. Thereafter, the weight on the hair tip side was removed, and the hair knot was suspended in the above-mentioned humidity chamber for another 1 hour. The knot made on the hair was photographed with a scanning electron microscope, and the size of the knot of the hair was determined based on the photographed image. The length (major axis) is measured by an image processing apparatus [JSM-5800LV manufactured by JEOL Ltd. is used for the scanning electron microscope, and SemaFore (product name) manufactured by the company is used for image processing]. For each sample, measure the size of the knots of 14 hairs and measure 2 from the largest and 2 from the smallest.
The results for the four samples were excluded, and an average value was obtained for the results of 10 hairs for each sample, and the average value indicates the evaluation result. It should be noted that the larger the numerical value indicating the evaluation result (the larger the knot), the more the hair has "beam".

[Evaluation Method for Smoothness (Slipperiness) of Hair Surface] The smoothness of the hair surface was measured using a friction tester KES-SE manufactured by Kato Tech Co., Ltd. Sa (or rough)
Is expressed as the average deviation of the coefficient of friction felt by a friction element moving a certain distance on the surface of the hair.The unit is dimensionless, and the smaller the value, the `` smoother '', that is, `` slipperiness ''. Is shown. In the test, the test results are represented by the average deviation of the coefficient of friction when the friction element moves 2 cm on the hair surface of each sample, and the numerical value indicating the test result is the average value of the measured values of each sample 10 times. is there.

[Test Method of Moisture Retention Ability of Hair] A hair bundle treated with each sample was suspended and stored in a constant-humidity bath at a relative humidity of 80% for 2 hours, and then precisely weighed. Transfer to a 20% relative humidity chamber and hang for 48 hours. The hair bundle after storage is precisely weighed again, and the weight reduction ratio is determined from the difference in weight before and after storage. The smaller the rate of decrease, the more "moisture retention"
It means there is.

[Method of Measuring Wave Efficiency and Wave Retention] Twenty hairs are bundled, the roots thereof are aligned and fixed with tape, and the length is adjusted to 15 cm. A glass tube with a diameter of 10 mm and a length of 80 mm is used for the rod, and a mark is made in advance every 10 mm (the mark is also shifted by 5 mm on the opposite side). Then, the hair bundle is wound around the rod so as to pass over the mark, and both ends are fixed with rubber bands. Treating the hair tress in the manner described in the Examples below,
After drying, the rubber band on the hair tip side is removed, and the rod is suspended horizontally in a desiccator and dried for 12 hours. After drying, the hair bundle is detached from the rod, the wavelength and the wave number of the wave are measured, and then a 3 g weight is attached to the tip of the hair, and the hair bundle is set vertically and left in a desiccator for 12 hours. Next, the weight is removed from the hair bundle, the hair bundle is set vertically, and left in a desiccator for 24 hours, and the wavelength and the wave number of the wave are measured again.

The measurement of the wavelength and the wave number is as shown in FIG.
Except for the waves at both ends, the distance from the top of the second wave from one end to the top of the second wave from the other end is measured for both the left and right. The distances from the vertices of the left and right waves to the vertices are L ₁ and L ₂ , the numbers of waves between L ₁ and L ₂ are n ₁ and n ₂ , and the average wavelength (L) is given by Ask by.

[0032]

The wavelength (diameter) of the rod itself is 10 mm
Therefore, the wave efficiency is obtained by the following equation.

[0034]

From the ratio of the wave efficiency after the setting process and the wave efficiency after the weight is removed and the wave is recovered after standing for 24 hours, the wave holding ratio is obtained as shown in the following equation.

[0036]

Example 1 and Comparative Examples 1 to 2 Two types of hair creams (A and B) having the compositions shown in Table 1
Was prepared, and after using each hair cream for hair, the gloss, moisture, combability and smoothness of the surface of hair dried with hot air with a hair dryer and hair dried with cold air with a hair dryer were examined. The amounts of each component in the examples and comparative examples are based on parts by weight, and for those whose amount is not the solid content, the solid content concentration is shown in parentheses after the component name. The same applies to the following examples and comparative examples. Further,% indicating the concentration of the solution or the dispersion is a weight, which is also the same in the following Examples and Comparative Examples.

In Example 1 and Comparative Example 1, R ¹リ ル CH ₃ ,
R ² ＯＨOH, R ^{3 、} OH and A is — (CH ₂ ) ₃ OCH
₂ CH (OH) CH ₂ —, the average value of m = 1.4, the average value of n = 18.6, the average value of m + n =
Hair cream A containing 20 silylated hydrolyzed collagen was used for the hair. In Example 1, the hair was heat-treated, and in Comparative Example 1, the hair was not heat-treated. In Comparative Examples 3 and 4, a hair cream containing hydrolyzed collagen having an average value of m = 1.4, an average value of n = 18.6, and an average value of m + n = 20 instead of the silylated hydrolyzed collagen was used. B was used for hair, and the hair was heat-treated in Comparative Example 3 and was not heat-treated in Comparative Example 4.

[0039]

[Table 1]

The treatment of the hair with the above hair cream was performed as follows. That is, four hair bundles having a length of 15 cm and a weight of 1 g are prepared, and the hair bundles are washed with a 2% aqueous solution of sodium polyoxyethylene (3) lauryl ether sulfate and rinsed in running tap water. To this hair bundle, the hair cream A for Example 1 and Comparative Example 1 and the hair cream B for Comparative Example 2 and Comparative Example 3 were added to each of the hair bundles in an amount of 0.1 mm.
Using 5 g, it was spread and spread well. The hair tresses of Example 1 and Comparative Example 2 were 1
Comparative Example 1 was dried by blowing hot air from a distance of 0 cm.
The hair tresses of Comparative Example 3 and Comparative Example 3 were dried with cold air using the same hair dryer. The temperature at the position of the hair bundle in the hot air drying was 65 ° C. 30 seconds after the start of the drying, and 72 ° C. at the end of the drying of the hair bundle (two minutes after the start of the drying).

The gloss, moisture and combability of the hair after drying were evaluated by 10 panelists (6 women, 4 men) with [3 points] being the best, and [2 points] being the second best. ], 3
The evaluation was made with the next best thing being [1 point] and the bad thing being [0 point]. Next, each hair bundle was subjected to an evaluation test for the smoothness of the hair surface to evaluate the slipperiness. The results are shown in Table 2, and the evaluation values are all average values.

[0042]

[Table 2]

As shown in Table 2, the hair of Example 1 which was heated and dried after using the hair cream A containing the silylated hydrolyzed collagen was the hair of Comparative Example 1 which was dried with the cold air after using the same hair cream A. Compared with, the gloss value of the hair, moistness, the evaluation value is high in both combability, gloss to the hair of the silylated hydrolyzed collagen by heat treatment,
It was clear that the effect of imparting moisture was enhanced and the combability was improved. Also, the gloss and moisture of the hair were higher than those of the hair of Comparative Example 2 which was heated and dried using the hair cream B containing the hydrolyzed collagen and the hair of Comparative Example 3 which was cooled and dried using the same hair cream B. The evaluation value was high in both the combability and the combability. From these results,
When heat treatment is performed using a hair cream containing silylated hydrolyzed collagen, heat treatment is not performed using a hair cream containing the same silylated hydrolyzed collagen. The effect of imparting gloss and moisture to hair and the effect of improving combability are more remarkable than when heat treatment is performed using a hair cream containing hydrolyzed collagen instead or when heat treatment is not performed It was clear that the protein could be expressed in E. coli.

The smoothness of the hair surface is best for the hair of Example 1 which was heated and dried after using the hair cream A containing the silylated hydrolyzed collagen, and the comparative example which was dried with the cold air after using the same hair cream A The smoothness was improved by about 7% as compared with the hair of No. 1. On the other hand, the hair of Comparative Example 2, which was heated and dried after using the hair cream B containing the hydrolyzed collagen, was smoother than the hair of Comparative Example 3, which was dried with the cold air using the same hair cream B, by heating. Almost no improvement was observed, and it was clear that the improvement in smoothness due to heating was due to the silyl group binding to the hydrolyzed peptide.

Example 2 and Comparative Examples 4 to 6 Two types of hair rinses (C and D) having the compositions shown in Table 3 were prepared, and after each of the hair rinses was used for washed hair, the hair was dried with hot air using a hair dryer. The gloss, moisture, hair beam and moisture retention capacity of the hair, which had been cold-air dried with a hair dryer, were examined.

In Example 2 and Comparative Example 4, as the silylated peptide, R ¹ ＣＨCH ₃ ,
R ² ＯＨOH, R ^{3 、} OH and A is — (CH ₂ ) ₃ OCH
₂ CH (OH) CH ₂ - or a group represented by the average plant in which m = 1, n average = 7, the average value of m + n = 8 in the hair rinse C containing silylated hydrolyzed wheat protein to the hair In Example 2, the hair was heat-treated in Example 2, and in Comparative Example 4, the hair was not heat-treated. In Comparative Examples 5 and 6, hair rinse D containing hydrolyzed wheat protein having an average value of m = 1, an average value of n = 7, and an average value of m + n = 8 was used instead of the silylated hydrolyzed wheat protein. Used for
In Comparative Example 3, the hair was heat-treated, and in Comparative Example 4, the hair was not heat-treated.

[0047]

[Table 3]

The treatment of the hair with the hair rinse was performed as follows. That is, four hair bundles having a length of 15 cm and a weight of 1 g were prepared, and the hair bundles were washed with a commercially available shampoo containing no hydrolyzed peptide or a derivative thereof, and rinsed with hot water. The hair bundle after the washing was subjected to a hair rinse treatment using 2 g each of the hair rinse C for Example 2 and Comparative Example 4 and the hair rinse D for Comparative Examples 5 to 6, and then rinsed with hot water. The hair tresses of Comparative Example 5 and Comparative Example 5 were heated and dried with the same hair dryer as in Example 1 under the same conditions, and the hair tresses of Comparative Example 4 and Comparative Example 6 were cooled with the same hair dryer and dried with cold air. After repeating the steps of shampoo washing, hair rinsing and drying five times, the gloss and moisture of the hair were evaluated by ten panelists (six women and four men) according to the same evaluation criteria as in Example 1. Next, 14 hairs were extracted from each hair bundle and subjected to a hair beam evaluation test to compare the size of knots. Further, the remaining hair bundles were subjected to an evaluation test for the ability to retain moisture, and the rate of decrease in moisture after storage in a humidity chamber was examined. The results are shown in Table 4. All the evaluation values other than the water retention ability are average values.

[0049]

[Table 4]

As shown in Table 4, the hair of Example 2 which was heated and dried using the hair rinse C containing the silylated hydrolyzed wheat protein was the hair of Comparative Example 4 which was dried with the same hair rinse C in the cold air. The evaluation value is higher in all of the gloss, moisture and combability of the hair, and the effect of imparting gloss, moisture and combability to the hair of the silylated hydrolyzed wheat protein is enhanced by the heat treatment. Was evident. On the other hand, when the hair rinse D containing the hydrolyzed wheat protein was used in place of the silylated hydrolyzed wheat protein, the glossiness between the hairs between Comparative Example 5 heated and dried and Comparative Example 6 dried with cold air was increased. , Moisture, no significant difference in the action of imparting combability, these Comparative Examples 5
Sample No. 6 had lower evaluation values of gloss, moisture and combability of hair than Example 2.

The size of the knot indicating the evaluation result of the hair beam was the largest for the hair of Example 2 which was heated and dried after using the hair rinse C containing the silylated hydrolyzed wheat protein, and the same hair rinse C was used. It is about 1.2 times that of Comparative Example 4 which was later cold-air dried, and after using the hair rinse D containing the hydrolyzed wheat protein instead of the silylated hydrolyzed wheat protein, after using the comparative example 5 or the same hair rinse D heated and dried. It was about 1.5 times that of Comparative Example 6 dried with cold air, and it was clear that heat treatment of hair using a hair rinse containing silylated hydrolyzed wheat protein improved the effect of imparting a beam to hair. Note that there is no significant difference in the size of the knot between Comparative Example 5 in which the hair rinse D containing the hydrolyzed wheat protein was heated after use and Comparative Example 6 in which the heat treatment was not performed. No improvement in the imparting effect was observed.

The reduction rate of the hair bundle weight, which indicates the evaluation result of the water retention ability of the hair, was the smallest for the hair bundle of Example 2 which was heated and dried using the hair rinse C containing the silylated hydrolyzed wheat protein. About 25% less than that of Comparative Example 4 which was cold-air dried using the same hair rinse C, and was about 80% of the reduction rate of Comparative Examples 5 and 6 using hair rinse D containing hydrolyzed wheat protein. It was clear that the film formed by heat-treating the hydrolyzed wheat protein had the effect of suppressing the evaporation of water from the inside of the hair and retaining the water. It should be noted that there was no significant difference in the reduction rate of water between Comparative Example 5 in which heat treatment was performed after using the hair rinse D containing the hydrolyzed wheat protein and Comparative Example 6 in which heat treatment was not performed.

Example 3 and Comparative Examples 7 to 9 Two types of hair setting agents (E and F) having the compositions shown in Table 5
Prepare and use each hair setting agent on washed hair, heat treated hair and unheated hair gloss,
Moisture, beam, wave efficiency and wave retention were examined.

In Example 3 and Comparative Example 7, R ¹ = CH ₃ ,
R ² ＯＨOH, R ^{3 、} OH and A is — (CH ₂ ) ₃ OCH
₂ CH (OH) CH ₂ —, a hair setting agent E containing silylated hydrolyzed keratin having an average value of m = 2, an average value of n = 8, and an average value of m + n = 10. In Example 3, the hair was dried at 90 ° C., and in Comparative Example 7, the hair was dried at 36 ° C. In Comparative Examples 8 and 9, the average value of m instead of the silylated hydrolyzed keratin =
A hair setting agent F containing a hydrolyzed keratin having an average value of 2, n = 8 and an average value of m + n = 10 was used for hair. In Comparative Example 8, the hair was dried at 90 ° C., and in Comparative Example 9, the hair was dried. Dried at 36 ° C.

[0055]

[Table 5]

The treatment of the hair with the above hair setting agent was performed as follows. That is, the hair whose length was adjusted to 18 cm was washed in advance with a 2% aqueous solution of polyoxyethylene (10EO) nonylphenyl ether, rinsed with water and air-dried at room temperature to prepare four hair bundles each consisting of 20 hairs. , Each of which was wrapped around a rod. To the hair bundle wound around the rod, 2 ml each of the hair setting agent E for Example 3 and Comparative Example 7 and the hair setting agent F for Comparative Examples 8 to 9 were applied, and the hairs of Example 3 and Comparative Example 7 were applied. The bundle was dried in a hot air dryer at 90 ° C., and the hair bundles of Comparative Examples 7 and 9 were dried in a thermostat at 36 ° C. The hair bundle after drying was removed from the rod, and the wave efficiency and the wave retention were determined by the method described in the section on the method of measuring the wave efficiency and the wave retention. Next, the gloss and moisture of the hair were evaluated by 10 panelists (6 women, 4 men) according to the same evaluation criteria as in Example 1. Further, 14 hairs were extracted from each hair bundle, and the hairs were extracted. The test pieces were subjected to a beam evaluation test to compare the size of knots. The results are shown in Table 6, and the evaluation values are all average values.

[0057]

[Table 6]

As shown in Table 6, the hair of Example 3 heat-treated at 90 ° C. using the hair setting agent E containing the silylated hydrolyzed keratin was treated at 36 ° C. using the same hair setting agent E. In comparison with the hair of Comparative Example 7, the evaluation value of both the gloss and the moisture of the hair was higher than that of the hair of Comparative Example 7, and it is clear that the effect of imparting the gloss and moisture to the hair having the silylated hydrolyzed keratin is enhanced by the heat treatment. Met. When a hair setting agent F containing hydrolyzed keratin was used instead of silylated hydrolyzed keratin, the hair was cured between Comparative Example 8 heated at 90 ° C. and Comparative Example 9 dried at 36 ° C. There is no significant difference in the luster and moisturizing effect of
These Comparative Examples 8 and 9 had lower evaluation values of gloss and moisture of hair than Example 3.

The hair of Example 3 has a higher wave efficiency by 20 to 50% and a higher wave retention than the hairs of Comparative Examples 7 to 9, and therefore uses silylated hydrolyzed keratin. It was evident that the hair was strongly set by the heat treatment, and that the setting force was persistent.

Further, the size of the knot indicating the evaluation result of the hair beam was the largest for the hair of Example 3 which was heat-treated using the hair setting agent E containing the silylated hydrolyzed keratin. Comparative Example 8 and Comparative Example 9 using a hair setting agent F containing hydrolyzed keratin about 1.4 times that of Comparative Example 7 which was not heat-treated using Agent E.
It is apparent that heat treatment of hair using a hair setting agent containing silylated hydrolyzed keratin improves the effect of imparting hair to the hair.

Example 4 and Comparative Examples 10 to 12 Two kinds of first agents for permanent wave (G
And H), the hair bundle is subjected to a permanent wave treatment using each of the first agent for a permanent wave and the second agent for a permanent wave composed of a 6% aqueous sodium bromate solution, and the heat-treated hair is subjected to heat treatment. The hair gloss, moisture, wave efficiency, wave retention and hair moisture retention of the non-hair were examined.

In Example 4 and Comparative Example 10, R ¹ ＣC in general formula (I) was used as a silylated peptide.
H ₃ , R ^{2 、} OH, R ³ ＯＨOH, and A is — (CH ₂ ) ₃ O
CH ₂ CH (OH) CH ₂ —, the average value of m = 0.5, n
The average value of 9.5 and the average value of m + n = 10, the first agent G for permanent wave containing the silylated hydrolyzed silk was used for the hair. In Example 4, the hair was dried at 90 ° C. At 10, the hair was dried at 36 ° C. In Comparative Examples 11 to 12, a permanent wave containing hydrolyzed silk having an average value of m = 0.5, an average value of n = 9.5, and an average value of m + n = 10 instead of the silylated hydrolyzed silk was used. The first agent H for hair was used for hair. In Comparative Example 11, the hair was dried at 90 ° C., and in Comparative Example 12, the hair was dried at 36 ° C.

[0063]

[Table 7]

The treatment of the hair with the first agent for permanent wave was carried out as follows. That is, length 18
cm of hair which has been previously washed with a 2% aqueous solution of polyoxyethylene (10EO) nonylphenyl ether,
The hair was rinsed with water and air-dried at room temperature to prepare four hair bundles each composed of 40 hairs, which were wound around rods. On the hair bundle wound around the rod, the first agent G for permanent wave for Example 4 and Comparative Example 10 and the first agent H for permanent wave for Comparative Examples 11 to 12 were added.
Is applied for 2 ml each, the hair bundles are covered with a wrap, left for 15 minutes, and then gently washed with running water for about 10 seconds. Then, a second agent for a permanent wave is applied in an amount of 2 ml each, and covered with a wrap, for 15 minutes. After standing, it was gently washed in running water for 30 seconds. Among the washed hair bundles, the hair bundles of Example 4 and Comparative Example 11 were dried in a hot air dryer at 90 ° C., and the hair bundles of Comparative Examples 10 and 12 were dried in a thermostat at 36 ° C. The hair bundle after drying was removed from the rod, and the wave efficiency and the wave retention were determined by the method described in the section on the method of measuring the wave efficiency and the wave retention. Next, the gloss and moisturization of the hair was reduced to 10 panelists (6 women,
(Four men) were evaluated according to the same evaluation criteria as in Example 1. Furthermore, each hair bundle was subjected to an evaluation test of the water retention ability, and the reduction rate of water after storage in a humidity chamber was examined. The results are shown in Table 8, and the evaluation values other than the water retention ability are all average values.

[0065]

[Table 8]

As shown in Table 8, the hair of Example 4 heat-treated at 90 ° C. using the first part G for permanent wave containing the silylated hydrolyzed silk had the same first part G for permanent wave. In comparison with the hair of Comparative Example 10 dried at 36 ° C., the evaluation value of both the gloss and the moisture of the hair was higher, and the effect of imparting gloss and moisture to the hair having the silylated hydrolyzed silk by heat treatment was given. Was apparently increased. Further, when the first agent H for permanent wave containing hydrolyzed silk was used instead of the silylated hydrolyzed silk, between Comparative Example 11 heated at 90 ° C. and Comparative Example 12 dried at 36 ° C. No significant difference was observed in the effect of imparting gloss and moisture to hair, and Comparative Examples 11 to 12 had lower evaluation values of gloss and moisture of hair than Example 4.

Further, the hair bundle of Example 4 was obtained in Comparative Examples 10 to 1
Wave efficiency is 15-25% higher than hair bundle
Further, since the wave retention rate is high, it is clear that when the heat treatment is performed using the first agent for permanent wave containing the silylated hydrolyzed silk, a strong wave is applied to the hair, and the durability of the wave is good. there were.

Further, the reduction rate of the hair bundle weight, which indicates the evaluation result of the water retention ability of the hair, was as follows: the hair of Example 4 which was heat-treated using the first agent for permanent wave G containing silylated hydrolyzed silk. Comparative example using the first agent H for permanent waving containing hydrolyzed silk in about 75% of Comparative Example 10 in which the bundle was the smallest and was not heat-treated using the same first agent G for permanent wave. 11 or about 70% of the reduction rate of Comparative Example 12, and the film formed by heat-treating the silylated hydrolyzed silk was:
It was apparent that the compound had the effect of suppressing the evaporation of water from inside the hair and retaining the water.

Example 5 and Comparative Examples 13 to 15 Two types of shampoos (I and J) having the compositions shown in Table 9 were prepared, and the hair was washed with each shampoo.
The gloss, moisture, combability, beam and smoothness of the hair surface were examined when the hair was dried with hot air and when dried with cold air.

In Example 5 and Comparative Example 13, R ¹ = OH,
R ² = OH, R ³ = OH, A is a propylene group, average value of m = 1, average value of n = 8, average value of m + n = 9 Shampoo I containing sialylated hydrolyzed casein After washing, the hair was dried by heating in Example 5 and the hair was dried by cold air in Comparative Example 13. In Comparative Examples 14 and 15, the hair was washed with shampoo J containing hydrolyzed casein having an average value of m = 1, an average value of n = 8, and an average value of m + n = 9 instead of the silylated hydrolyzed casein. In Comparative Example 14, the hair was dried by heating, and in Comparative Example 15, the hair was dried by cold air.

[0071]

[Table 9]

The treatment of the hair with the shampoo was performed as follows. That is, four hair bundles each having a length of 15 cm and weighing 1 g were prepared, and each of the hair bundles was prepared using 0.5 g each of shampoo I for Example 5 and Comparative Example 13 and shampoo J for Comparative Examples 14 to 15 respectively. Was washed and rinsed with hot water, the hair bundles of Example 5 and Comparative Example 14 were dried by heating under the same conditions with the same hair dryer as in Example 1, and the hair bundles of Comparative Example 13 and Comparative Example 15 were dried with the same hair dryer. Dry with cold air.
After repeating the shampoo washing and drying steps 10 times, the gloss, moisture and combability of the hair were evaluated by 10 panelists (6 women and 4 men) according to the same evaluation criteria as in Example 1. . Next, each hair bundle was subjected to an evaluation test for the smoothness of the hair surface to examine the slipperiness. Further, 14 hairs were extracted from each hair bundle, and the hairs were subjected to a beam evaluation test to compare knot sizes. The results are shown in Table 10, and the evaluation values are all average values.

[0073]

[Table 10]

As shown in Table 10, the hair of Example 5 which had been washed with shampoo I containing silylated hydrolyzed casein and then dried by heating was the same as that of Comparative Example 13 which had been washed with the same shampoo I and dried with cold air. Compared to the hair of Comparative Example 14, which was washed with shampoo J containing casein and then heated and dried, and the hair of Comparative Example 15 which was washed with shampoo J containing hydrolyzed casein and then dried with cold air, the luster and moistness of the hair were improved.
The evaluation value is high in any of the combability, gloss to the hair having silylated hydrolyzed casein by heat treatment,
It was clear that the effect of imparting moisture and combability was enhanced.

The smoothness of the hair surface is best for the hair of Example 5 which was washed with shampoo I containing silylated hydrolyzed casein and then dried by heating, and the hair of Comparative Example 14 which was washed with the same shampoo I and dried with cold air. The slipperiness was improved by about 5% compared to the hair. Comparative Example 1 was washed with shampoo J containing hydrolyzed casein and then dried by heating.
The hair of Comparative Example 5 showed little improvement in the slipperiness due to heating as compared with the hair of Comparative Example 16 which was washed with the same shampoo J and then dried with cold air. It was clear that the group was involved.

The size of the knot indicating the evaluation result of the hair beam was the largest for the hair of Example 5 which was heated and dried after washing with shampoo I containing silylated hydrolyzed casein, and after washing with the same shampoo I. About 1.3 times as much as the hair of Comparative Example 13 dried with cold air and about 1.5 times as much as the hair of Comparative Example 14 or the hair of Comparative Example 15 dried with cold air after washing with shampoo J containing hydrolyzed casein and heating and drying. ,
It was clear that washing the hair with a shampoo containing silylated hydrolyzed casein and heating and drying the hair improved the effect of imparting a beam to the hair.

Example 6 and Comparative Example 16 An oxidized hair dye K having the composition shown in Table 11 was prepared, and after the hair was dyed, the gloss, moisture, and comb of the hair were heated and dried with cold air. The penetration and the smoothness of the hair surface were examined.

In Example 6 and Comparative Example 16, R ¹ ＣC in general formula (I) was used as a silylated peptide.
H ₃ , R ^{2 、} OH, R ³ ＯＨOH, and A is — (CH ₂ ) ₃ O
CH ₂ CH (OH) CH ₂ — is an oxidized hair dye K containing a silylated hydrolyzed soybean protein having an average value of m = 1, an average value of n = 7, and m + n = 8. The hair was dyed. In Example 6, the hair was heat-treated, and in Comparative Example 16, the hair was dried with cold air.

[0079]

[Table 11]

The treatment of the hair with the oxidative hair dye K was carried out as follows. That is, a length of 15 cm and a weight of 1 g
Are prepared, washed with a 2% aqueous solution of sodium polyoxyethylene (3) lauryl ether sulfate, rinsed in running tap water, air-dried, and dried with the first agent and the first agent. After 2 g of the oxidized hair dye obtained by mixing the two agents in the same amount is uniformly applied to the hair bundle, it is left for 30 minutes, rinsed with hot water, and then washed with a 2% aqueous solution of sodium polyoxyethylene (3) lauryl ether sulfate. And by rinsing in running tap water. Then, the hair bundle of Example 6 was a hair iron [Wast, manufactured by Hako Kogyo Co., Ltd.
Flat Iron (trade name)]
Heated at 0 ° C. Heating was repeated 5 times at 20-second intervals for 5 seconds so as not to cause damage to the hair due to heating. On the other hand, the hair bundle of Comparative Example 16 was dried in a constant temperature bath at 40 ° C. After drying, the gloss, moisture and combability of the hairs of Example 6 and Comparative Example 16 were evaluated by 10 panelists (Female 7).
And three men) were evaluated according to the following evaluation criteria.

Evaluation Criteria Very Good 5 Good 4 Normal 3 Bad 2 Very Bad 1

Further, the hair after the above-mentioned sensory evaluation was subjected to an evaluation test for the smoothness of the hair surface to examine the slipperiness. The results are shown in Table 12 as average values.

[0083]

[Table 12]

As is clear from the results shown in Table 12, oxidized hair dye K containing silylated hydrolyzed soybean protein was used.
The hair of Example 6 which was heat-treated after the hair dyeing in Comparative Example 16 was less moist, glossy and combable than the hair of Comparative Example 16 which was not heat-treated after the hair dyeing with the same oxidative hair dye K. The evaluation value was high, and it was clear that the heat treatment enhanced the effect of imparting gloss, moisture and combability to the hair of the silylated hydrolyzed soybean protein.

The smoothness of the surface of the hair was determined by dyeing the oxidized hair dye K containing the silylated hydrolyzed soybean protein and then heat-treating the hair in Example 6 with the same oxidized hair dye K. Compared to the hair of Comparative Example 16 which was not heat-treated after the hair, the slip property was improved by about 9%, and the silylated hydrolyzed soybean protein formed a film on the hair by the heat treatment, and the hair surface was smoothened. It was clear that.

Example 7 and Comparative Example 17 An acidic hair dye M having the composition shown in Table 13 was prepared, and after the hair was dyed, the gloss, moisture and combability of the hair when the hair was heated and dried with cold air Sex and beam were evaluated.

In Example 7 and Comparative Example 17, R ¹ペ プ チ ド C in general formula (I) was used as a silylated peptide.
H ₃ , R ^{2 、} OH, R ³ ＯＨOH, and A is — (CH ₂ ) ₃ O
An acidic hair dye M containing a silylated hydrolyzed keratin having a group represented by CH ₂ CH (OH) CH ₂ — and having an average value of m = 2, an average value of n = 8, and an average value of m + n = 10. Hair was dyed, and in Example 7, the hair was dried by heating.
In 7, the hair was dried with cold air.

[0088]

[Table 13]

The treatment of the hair with the acidic hair dye M was carried out as follows. That is, two hair bundles having a length of 15 cm and a weight of 1 g are prepared, and the hair bundles are washed with a 2% aqueous solution of sodium polyoxyethylene (3) lauryl ether sulfate and rinsed in running tap water. In order to make the degree of decolorization and damage uniform, the hair bundle is immersed in a 5% aqueous ammonia solution containing 5% hydrogen peroxide for 5 minutes to perform bleaching treatment, washed with water, air-dried, and then subjected to a hair dyeing test. did. In the hair dyeing treatment, 2 g of the above-described acidic hair dye is applied to each hair bundle, and after standing for 15 minutes, washed with a commercially available shampoo containing no hydrolyzed peptide or its derivative, and further rinsed with warm water at 40 ° C. or lower. Thereafter, the hair bundle of Example 7 was dried with a hair dryer under the same conditions as in Example 1, and the hair bundle of Comparative Example 17 was dried with a hair dryer in a cool air. After drying, 10 panelists (7 women and 3 men) evaluated the moisture, gloss and combability of the hair of Example 7 and Comparative Example 17 according to the same evaluation criteria as in Example 6, and furthermore, each hair bundle A further 14 hairs were extracted and subjected to a hair beam evaluation test. Table 1 shows the results.
4 shows the average value.

[0090]

[Table 14]

As is clear from the results shown in Table 14, the hair of Example 7 which had been hair-dried with an acidic hair dye M containing silylated hydrolyzed keratin and then dried by heating was the same as the acidic hair dye M
In comparison with the hair bundle of Comparative Example 17 which was cold-dried after dyeing with hair, the moisturizing, gloss and combability of the hair were higher in the evaluation value, and the gloss to the hair having the silylated hydrolyzed keratin by the heat treatment,
It was clear that the effect of imparting moisture and combability was enhanced.

The size of the knot indicating the evaluation result of the hair beam was as follows. The hair of Example 7 which was heated and dried by drying with an acidic hair dye M containing silylated hydrolyzed keratin was the same as the acid hair dye M. About 1.4 times that of Comparative Example 17, which was dried with cold air after hair dyeing, and when hair was dyed with an acidic hair dye containing silylated hydrolyzed keratin and dried by heating, the effect of imparting a glue to the hair was improved. It was clear.

[Brief description of the drawings]

FIG. 1 is a diagram schematically showing knots (knots) of hair when evaluating a beam of hair.

FIG. 2 is a diagram schematically showing the state of the hair wave when measuring the wave efficiency and the wave retention.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A61K 7/13 A61K 7/13 C08G 69/48 C08G 69/48 (72) Inventor Takashi Adachi Higashi Osaka, Osaka 1-214, Ichifu Ichimachi, Seiwa Kaseinai Co., Ltd. (72) Inventor Sakiko Uchida 1-2-1,14, Fukuichicho, Higashiosaka-shi, Osaka Co., Ltd. Seiwa Kaseinai Co., Ltd. (72) Inventor Hideaki Niwase 5-3-28 Kotobukicho, Odawara City, Kanagawa Prefecture Kanebo Co., Ltd. Cosmetics Research Laboratory (72) Inventor Akira Utsugi 5-3-28 Kotobukicho, Odawara City, Kanagawa Prefecture Kanebo Cosmetics Research Laboratory (72) Inventor Inashi Satoshi 5-3-28 Kotobuki-cho, Odawara-shi, Kanagawa Kanebo Co., Ltd. Cosmetics Research Laboratory F-term (reference) 4C083 AB082 AB352 AB412 AC022 AC072 AC082 AC102 AC122 AC182 AC242 AC252 AC 302 AC342 AC392 AC422 AC442 AC472 AC482 AC532 AC542 AC552 AC642 AC692 AC772 AC792 AC852 AD092 AD152 AD192 AD282 AD411 AD432 AD442 CC31 CC32 CC34 CC36 CC38 CC39 EE07 EE12 4J001 EA33 EA34 EA36 EE82C GD06 GE07 JA20 JB50

Claims (4)

[Claims] 1. A hair treatment method comprising using a hair cosmetic containing a silylated peptide for hair and subjecting the hair to heat treatment. 2. The hair treatment method according to claim 1, wherein the heating temperature is 50 ° C. to 200 ° C. 3. A silylated peptide represented by the following general formula (I): [In the formula, at least one of R ¹ , R ² , and R ³ represents a hydroxyl group, and the rest represents an alkyl group having 1 to 3 carbon atoms. R
⁴ represents a residue excluding the terminal amino group of a basic amino acid having an amino group at the terminal of the side chain, and R ⁵ represents an amino acid side chain other than R ⁴ . A is a bond, a methylene group, a propylene _{group, -CH 2 OCH 2 CH (OH} ) CH 2 - or -
A group represented by (CH ₂ ) ₃ OCH ₂ CH (OH) CH ₂ —, wherein m is 0 to 200, n is 0 to 200, and n + m
Is 1 to 200 (where m and n indicate the number of amino acids but do not indicate the order of the amino acid sequence)]. Law. 4. The silylated peptide represented by the general formula (I), wherein one of R ¹ , R ² and R ³ has 1 to 1 carbon atoms.
4. The alkyl group of claim 3, wherein the remaining two are hydroxyl groups.
The hair treatment method as described above.