JP2006248986A - Styling cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a styling cosmetic effectively applicable for forming both of curled and straight hair styles, capable of maintaining the formed hair style for a long time (to the next shampooing), ameliorating/recovering the damage of the damaged hair, and, if necessary, extremely reducing starchy feeling and stiff feeling. <P>SOLUTION: The styling cosmetic is obtained by formulating (a) a hydrolyzed keratin having 25,000-35,000 average molecular weight, and (b) a protein composition separated/purified from wool or human hair, containing proteins having 11,000 average molecular weight and 9,700 average molecular weight measured by a gel filtration column chromatography respectively, and having 8,000-12,000 molecular weight, regulated so that the formulated ratio of the hydrolyzed keratin to the protein composition may be (3:2)-(1:10) (by mass). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a styling cosmetic for forming curly hair or a straight hairstyle, and more particularly to a styling cosmetic used for improving the holding power of the formed style.

  Currently, curly hair and straight style are prevalent, especially among young women. For these hairstyles, curl is formed using a curling hair heat iron (round shape) or hot curler, or straight is formed using a straight heat iron, and hair is mainly used using heat. The curl and straight are formed.

  When forming curled or straight hairstyles by these methods, the most common method is to apply water to the hair, dry it with a dryer, etc., and then heat it with an iron or the like to give it curl or straight. It has been broken. However, in such a method, the holding power of the formed style is extremely weak, it is difficult to hold the style for a long time, and there is a problem that the style can be taken early (see, for example, Non-Patent Document 1). .

  For these reasons, cosmetics in which an acrylic acid-based or methacrylic acid-based resin compound is dissolved in alcohol are being used for the purpose of improving setability (see, for example, Patent Document 1). However, resin-based cosmetics in which a resin-based compound is dissolved in alcohol have a better setting power than when water is used, but the problem remains that the style after setting can only be maintained for a few hours. In addition, when such a cosmetic is used, there is a problem that the hair feels harsh and feels bad.

  By the way, it is also important that hair is not damaged when the hair is processed by the style forming process using the iron as described above. In addition, depending on the style formation treatment, the hair after the style formation may have a feeling of tingling or crispness. It is also desired to reduce such a feeling as much as possible. From these viewpoints, there is room for improvement in the styling cosmetics proposed so far.

On the other hand, styling cosmetics that can be used in both curl and straight styles have been proposed (see, for example, Patent Document 2). However, what has been proposed so far focuses on either curl or straight, and cannot necessarily be applied effectively to both styles.
"CLASSY" April issue first appendix "Reborn in the spring! Hair, catalog" Kobunsha, published on April 1, 2004 JP, 2004-26825, A Claims JP 2003-55712 A Claims

  The present invention has been made under these circumstances, and its purpose can be effectively applied to the formation of both curled and straight hairstyles, and the formed hairstyle can be retained for a long time (until the next shampoo). It is possible to provide a styling cosmetic that can repair and recover damaged hair, and can reduce the feeling of tingling and crunch as much as necessary.

  The styling cosmetic of the present invention that has achieved the above-mentioned object is based on (a) hydrolyzed keratin having an average molecular weight of 25,000 to 35000, and (b) gel filtration column chromatography separated and purified from wool or human hair. A blend of a protein composition having a molecular weight of 8000 to 12000 containing a protein having an average molecular weight measurement value of 11000 and a protein of 9700. However, it has a gist in that it is 3: 2 to 1:10 (mass ratio). The average molecular weight in the present invention means “mass average molecular weight”.

  In the styling cosmetic of the present invention, the ratio of the total of hydrolyzed keratin and protein composition to the entire styling cosmetic is preferably 0.2 to 2% by mass.

  The styling cosmetic of the present invention preferably contains a silylated hydrolyzed protein as necessary, which can further enhance the holding power of styling. When such a silylated hydrolyzed protein is blended, the blending amount is preferably about 0.05 to 0.15% by mass.

  Furthermore, it is also recommended that the styling cosmetic of the present invention be blended with a phospholipid copolymer and / or a highly polymerized silicone, if necessary. By blending such a substance, static electricity is prevented from being charged to the hair after styling. Thus, it is possible to prevent the feeling of tingling and crispness and to significantly improve the feeling of slipping on the hair surface.

  In the present invention, (a) hydrolyzed keratin having an average molecular weight of 25,000 to 35,000, and (b) a protein having an average molecular weight measured by gel filtration column chromatography separated and purified from wool or human hair is 11000 and 9700. By blending a protein composition with a molecular weight of 8000 to 12000 in a predetermined ratio, when a curled or straight hairstyle is formed, the style can be maintained for a long time, and hair color, bleach, permanent wave, etc. Styling cosmetics that can repair and recover hair damaged by natural physics / beauty treatment and brushing.

  In the styling cosmetic of the present invention, (a) hydrolyzed keratin having an average molecular weight of 25,000 to 35,000, and (b) a protein having an average molecular weight measured by gel filtration column chromatography separated and purified from wool or human hair and 1700 and 9700 A protein composition having a molecular weight of 8000 to 12000 containing the above protein is blended as an essential component. The effects of these components are as follows.

  The hydrolyzed keratin exhibits an effect of imparting style to the hair and not reducing the strength of the hair that has formed the style. In order to exert such effects, it is important that the average molecular weight of the hydrolyzed keratin used is within a specific range. If this average molecular weight is less than 25,000, a desired styling formation effect cannot be exhibited. On the other hand, if the average molecular weight exceeds 35,000, it becomes close to natural keratin protein, and the effect of using “hydrolyzed keratin” is not exhibited.

  The type of hydrolyzed keratin to be used is not particularly specified except for specifying the average molecular weight. For example, "hydrolyzed keratin powder" or "hydrolyzed keratin powder" listed in the Ministry of Health, Labor and Welfare's cosmetic ingredient-specific formulation standard may be used, or a commercially available purified polymer α-keratose (crystalline keratin) Alternatively, γ-keratose (non-crystalline keratin) may be used.

  On the other hand, the protein composition exhibits the effect of acting on the hair and improving the holding power of the hairstyle, and the present inventors have found it as a useful component of a hair treatment agent. The present inventor has been conducting further research with the aim of developing a hair treatment agent that repairs and improves permanent wave forming ability. As part of the research, the average of gel filtration column chromatography separated and purified from human hair is used. A protein having a molecular weight measurement value of 11000 (specific protein) was found to be useful as a component capable of exhibiting such an effect, and its technical significance was found, and the application has been filed earlier (Japanese Patent Application Laid-Open No. 2004-286738). . And the above-mentioned effect can be exerted on a protein composition (hair fraction protein containing impurities) having a molecular weight of 8000 to 12000 that contains not only the specific protein but also a protein having an average molecular weight of 9700. Is heading. The present invention applies such a protein composition, and was able to improve the holding power not only when a curl was formed but also when a straight hairstyle was formed.

  Preparation of the above protein composition and confirmation of the protein by electrophoresis, purification of each protein, measurement of molecular weight, and the like are performed by the following methods. Moreover, it has been confirmed that such a protein composition can be obtained in the same manner not only with human hair but also with wool.

(Method for preparing hair protein solution containing specific protein)
The protein composition in the present invention can be produced and prepared from hair. For the extraction (fractionation) of constituent proteins from hair, a method using a conventional reduction treatment with 2-mercaptoethanol (for example, “Journal of Cosmetic Science” 1998, Vol. 49, pp. 13-22) is appropriate. is there. The extraction method applied to the present invention is shown below.

  Degreasing the hair surface by immersing 0.2g (length 16cm) of hair with no experience of bleaching treatment or permanent wave treatment in a degreasing agent (chloroform / methanol = 2/1: volume ratio) for 24 hours. did. The treated hair was sufficiently dried with a dryer and cut into a length of about 1 cm. The cut hair is put into a beaker, and a hair protein fraction extract [0.025 mol / L Tris-HCl containing 2.5 mol / L (liter) of 2-mercaptoethanol and 1% by mass of SDS (sodium dodecyl sulfate). Buffer, pH 8.3] was mixed well with 20 mL and immersed under conditions of 50 ° C. and 72 hours.

  The solution after the immersion treatment was placed in a dialysis tube (molecular weight: 8000, manufactured by Nacalai Tesque), and dialysis was performed for 16 hours or more (external liquid exchange 4 times) using ion exchange water as an external liquid. The solution in the tube after dialysis (molecular weight 8000 or more) was concentrated by ultrafiltration using a stirring cell (for molecular weight 3000 or more, manufactured by Millipore). A sample in which the protein concentration was adjusted to 0.1 to 1.5 mg / mL by concentration was obtained as a hair protein solution (including a specific protein) of the present invention.

(Protein band confirmation method by Tricine-SDS-polyacrylamide gel electrophoresis of hair protein solution)
Hair protein solution and sample buffer (2 mL of 0.5 mol / L Tris-HCl buffer, 4 mL of 10 mass% SDS solution, 1.2 mL of 2-mercaptoethanol, 2 mL of glycerol, 0.8 mL of ion-exchanged water, 1 mL A few drops of mass% BPB (bromophenol bull was added to make a total volume of 10 mL) were mixed at a ratio of 1: 1, and heat denatured at 95 ° C. for 3 minutes to obtain a sample for electrophoresis.

  A sample was applied to a gel prepared in advance with the following composition, and electrophoresis was performed at a constant current of 50 mA. The composition of the electrophoresis buffer was as follows: 0.2 mol / L Tris (pH 8.9) as the anode buffer, 0.1 mol / L Tris, 0.1 mol / L Tricine, 0.1 mass as the cathode buffer. A mixed solution (pH 8.25) of% SDS solution was used. After completion of the electrophoresis, the gel is stained with a protein band with CBB (Comasee Brilliant Blue) staining solution, and ethanol / acetic acid / ion exchanged water is composed of [ethanol / acetic acid / ion exchanged water = 3/1/6: volume ratio]. The gel site other than the protein was decolorized with a decolorizing solution. Then, it was confirmed by Tricine-SDS-polyacrylamide electrophoresis that there was a band at a molecular weight of 11000 (for example, “Analytical Biochemistry”, 1987, 166, 368-379).

(Separation gel)
6 mL of acrylamide solution (48% by mass of acrylamide and 1.5% by mass of bisacrylamide) and 10 mL of gel buffer (mixture of 3.0 mol / L Tris and 0.3% by mass of SDS solution, pH 8.45) Then, 4 mL of glycerol, 0.15 mL of 10% by mass ammonium persulfate, 0.15 mL of TEMED (N, N, N ′, N′-tetramethylethylenediamine), and a separation gel composed of the remaining ion-exchanged water were prepared (total amount: 30 mL) ).

(Concentrated gel)
Acrylamide solution (48 mass% acrylamide and 1.5 mass% bisacrylamide) 1 mL, gel buffer (3.0 mol / L Tris and 0.3 mass% SDS solution mixture, pH 8.45) 3 1 mL, 0.075 mL of 10% by mass ammonium persulfate, TEMED (N, N, N ′, N′-tetramethylethylenediamine) 0.005 mL, and a concentrated gel composed of the remaining ion-exchanged water was prepared (total amount 12.5 mL) ).

(Protein purification)
As the resin inside the column, DEAE (diethylaminoethyl) -cellulose (manufactured by Nacalai Tesque) was used. The purification method is described below. The column is filled with the resin, washed with acid and alkali, and then the column is equilibrated with ion exchange water. The hair protein solution is gradually applied to the equilibrated column. After the application, the protein in the hair protein solution was separated by a general protein purification method in which the target protein was eluted by performing an ion gradient treatment with a salt of 0.1 to 0.5 mol / L.

(Molecular weight measurement)
The molecular weight measurement by gel filtration column chromatography is described below. “Shimadzu Liquid chromatography LC-6A” (manufactured by Shimadzu Corporation) is used as a high-performance liquid column chromatograph, “Shimadzu UV-VIS Spectrophotometric detector SPD-6AV” (manufactured by Shimadzu Corporation) is used as a detector, and “squad” is used as a recorder. -R6A "(manufactured by Shimadzu Corporation)," TSK-GEL Guard Column SW 7.5 x 7.5 (mm) "(manufactured by Tosoh Corporation) as the guard column, and" TSK-GEL G3000SW 7.5 x "as the column. 600 (mm) "(manufactured by Tosoh Corporation) was used.

The analysis method was carried out using the above-mentioned instrument and sample under conditions of a flow rate of 0.5 mL / min and a measurement wavelength of 280 nm (elution buffer (0.1 mol / L NaH ₂ PO ₄ / Na ₂ HPO ₄ (pH 7.0)). ) +0.1 mol / L Na ₂ SO ₄ ). In addition, this molecular weight measurement is carried out using glutamate dehydrogenase (molecular weight 290000), lactate dehydrogenase (molecular weight 142000), enolase (molecular weight 67000), adenylate kinase (molecular weight 32000), cytochrome c (molecular weight) as standard markers with known molecular weights. Measured using a molecular weight of 12400).

  The styling cosmetic of the present invention contains the hydrolyzed keratin and protein composition as described above as essential components, but these blends (hydrolyzed keratin: protein composition) are 3: 2-1: It is necessary to set the range of 10 (mass ratio). If it is out of this range, the styling holding force tends to be reduced. The blending ratio of hydrolyzed keratin and protein composition is (hydrolyzed keratin: protein composition), preferably 1: 1 to 1:10, more preferably 1: 1 to 1: 8. Is good.

  Further, the styling cosmetic of the present invention may contain other components as a styling cosmetic in addition to the above components (described later), but the total of the hydrolyzed keratin and the protein composition is the styling makeup. It is preferable that it is 0.2-2 mass% in the ratio for the whole material. When this proportion is less than 0.2% by mass, the effect of blending these components is not exhibited, and when it exceeds 2% by mass, the styling holding power is reduced.

  It is also useful to add a silylated hydrolyzed protein to the styling cosmetic of the present invention, if necessary. Typical examples of the silylated hydrolyzed protein include those represented by the following chemical formula (wherein n is a positive integer and R represents an amino acid side chain, respectively). By blending, the curl formation holding power can be further improved. In addition, when mix | blending silylated hydrolyzed protein, about 0.05-0.15 mass% is suitable for the compounding quantity. Examples of the silylated hydrolyzed protein include silylated hydrolyzed proteins made from wheat, soybean, corn, potato, sesame and the like.

  Furthermore, it is also recommended that the styling cosmetic of the present invention is blended with a phospholipid copolymer and / or a highly polymerized silicone as necessary. These substances exert the effect of improving the conditioning effect on the hair, and by blending these substances, the static electricity is suppressed from being charged to the hair after styling, and a feeling of tingling and crispness is produced. Can be prevented, and the slipperiness of the hair surface can be remarkably improved. When these substances are blended, it is preferable that the ratio (content) of the phospholipid copolymer is 2% by mass or less, and the highly polymerized silicone is 20% by mass or less.

  In the above styling cosmetic, other components such as an inorganic cation, a reducing agent, an oxidizing agent, a polyhydric alcohol, a lower alcohol, a hydroxycarboxylic acid, and monoethanol are added as necessary as long as the effects of the present invention are not hindered. Hair keratin affinity agent such as acetamide, urea, alkaline agent, pH adjuster, cationic, amphoteric or nonionic polymer or low molecular surfactant, higher alcohol, peptide and peptide derivative, amino acid, ceramide, phospholipid Plant-derived proteins, silicones and silicone derivatives, various dyes, sequestering agents, preservatives, ultraviolet absorbers, antioxidants, fragrances, and the like can be appropriately blended.

  The styling cosmetic of the present invention can be used for daily curling and straightening of hair, and its dosage form is various such as liquid, mist, cream, gel, foam, aerosol, etc. There are no particular limitations. In order to form a style on hair using the styling cosmetic of the present invention, the styling cosmetic is applied to the hair and the style is set with an iron, a hot curler, a winding rod, or the like. Furthermore, you may give the blow set by a dryer.

  By using the styling cosmetic of the present invention, it is possible to improve the styling retention force on the hair, and it is damaged by cosmetic treatment such as hair color, bleach, permanent wave, and drying and brushing by a daily dryer. The effect of repairing and recovering hair will be exhibited.

  Next, the present invention will be described more specifically by way of examples. However, the following examples are not intended to limit the present invention, and all modifications can be made without departing from the spirit of the above and following descriptions. To be included in the scope.

Example 1
(Preparation of bleached hair, evaluation of curl and straight forming retention force)
The hair that has not been subjected to chemical treatment at all is treated with the following bleaching treatment three times, and then the hair is curled with the following styling cosmetics. evaluated. The evaluation method of the curl formation holding force at this time is as follows.

(Bleach processing)
A bleaching agent obtained by mixing toner bleach powder (powder bleaching agent, manufactured by Nakano Pharmaceutical Co., Ltd.) and caradeco oxide 06 (hydrogen peroxide-based oxidizing agent, manufactured by Nakano Pharmaceutical Co., Ltd.) so as to be 1: 3 (mass ratio), The hair was applied to the hair at a mass ratio of 1: 1, treated at 30 ° C. for 30 minutes, washed with 10% by mass SDS solution, and then dried. This series of procedures was performed three times (three steps) as one step.

(Styling cosmetics)
A sample containing 10% by mass of hydrolyzed keratin having an average molecular weight of 25,000 to 35000 (referred to as sample A), a protein having an average molecular weight measured by gel filtration column chromatography separated and purified from wool or human hair, 11,000 and 9700 Samples containing 20% by mass of a protein composition having a molecular weight of 8000 to 12000 containing protein [referred to as sample B] were used in various blending ratios shown in the following Tables 1 to 3 (Prescription Examples 1 to 13, Comparative Examples 1 to Various raw materials were blended in 3) to prepare various styling cosmetics.

(Evaluation of curl retention force)
The styling cosmetic was applied to each bleached hair (0.2 g) (0.2 mL), dried, and then heat-treated with an iron (independent steam: manufactured by Brown) to form curls. The surface temperature of the iron at this time was 120 ° C., and heat treatment was performed for 5 seconds. Then, after leaving it to stand at room temperature (20 ° C.) for 24 hours (humidity: 60%), the curl formation holding force was evaluated by comparing its natural length (the longer the length, the lower the curl formation holding force). ). The results are also shown in Tables 1-3.

The evaluation of the curl formation holding force at this time was made by quantifying the relative length when the length immediately after the curl was formed (natural length) was 100, and judged according to the following evaluation criteria.
[Evaluation criteria for curl retention strength]
A: Natural length is in the range of 100 to 107.
○: Natural length is in the range of 108 to 115.
(Triangle | delta): It is set as the range of natural length 116-125.
X: Natural length is 126 or more.

  1 to 6 are photographs substituted for drawings in which curl formation holding power of each hair is compared with natural length. 1, FIG. 3 and FIG. 5 show the state immediately after the curl formation, and FIG. 2, FIG. 4 and FIG. About each thing, when the length (natural length) immediately after forming curl using styling cosmetics was set to 100, the length of each treatment hair (hair after leaving for 24 hours) was converted into a numerical value and compared. The values are those shown in Tables 1 to 3, and it can be seen that the curl-forming holding power is improved in the case of using the styling cosmetic of the present invention. In particular, a clear difference can be confirmed from those of Comparative Examples 1 to 3 (resin styling cosmetics) that have been widely used conventionally.

(Evaluation of straight holding force)
Apply the styling cosmetic to each bleached hair (1.5 g) (1.5 mL), and after drying, heat-treat using an iron (strain iron “S-27” manufactured by Nakano Pharmaceutical Co., Ltd.) A straight style was formed. The surface temperature of the iron at this time was 160-180 degreeC, and it heat-processed for 5 seconds. Then, after standing at room temperature (20 ° C) for 24 hours (humidity: 60%), the straightness (hair feeling) was compared to evaluate the straight holding power (the straightness the more cleanly the way it was organized). Becomes higher). The results are also shown in Tables 1-3.

At this time, the evaluation of the straight holding force was judged according to the following evaluation criteria by 10 professional panelists.
[Evaluation criteria for straight holding force]
A: The straight feeling was maintained as much as no change compared to immediately after the straight formation.
○: A straight feeling was maintained as compared with immediately after the straight formation.
(Triangle | delta): The feeling of straightness was slightly maintainable compared with immediately after straight formation.
X: Compared with immediately after the straight formation, the straight feeling could not be maintained clearly.

  FIGS. 7 to 12 are photographs substituted for drawings in which the straight holding force of each hair is compared with the natural length. 7, 9 and 11 show the state immediately after the straight formation, and FIGS. 8, 10 and 12 show the state after standing for 24 hours, respectively. Moreover, the evaluation criteria of the straight holding force are shown in FIG. By comparing the straight feeling immediately after forming the straight using the styling cosmetic and the straight feeling after 24 hours for each of them, the straight holding power is improved in the one using the styling cosmetic of the present invention. I understand that. In particular, a clear difference can be confirmed from those of Comparative Examples 1 to 3 (resin styling cosmetics) that have been widely used conventionally.

Example 2
Using the bleached hair shown in Example 1, the styling cosmetics shown in Table 3 (Prescription Example 1, Comparative Examples 1 to 3) were applied, dried, and then subjected to curling treatment with an iron. Thereafter, the deposits were removed by shampooing and dried. Breaking strength was measured about the hair which performed such a series of procedures as 1 process 3 times, 6 times, 12 times, and 30 times. The breaking strength measurement method at this time is as follows.

(Break strength measurement method)
10 hairs were arbitrarily selected from each hair bundle that was curled using the styling cosmetics of Formulation Example 1 and Comparative Examples 1 to 3 shown in Table 3 above, and “Hair Diameter Measurement System” (manufactured by Kato Tech Co., Ltd.) ), The major axis (mm) and minor axis (mm) of the hair were measured, and the cross-sectional area (mm ² ) was determined from the following equation.
Cross-sectional area (mm ² ) = (π / 4) × major axis (mm) × minor axis (mm)

Next, the tensile break value (cN) of the above hair sample in water was measured using a desktop material testing machine [“Tensilon STA-1150” manufactured by Orientec Co., Ltd.]. Thereafter, the breaking strength (cN / mm ² ) was determined by calculating the tensile breaking value (cN) per cross-sectional area (mm ² ).

  The results are shown in Table 4 below. Table 4 also shows the results for the case where only the bleaching process was performed as “0 times of processing” data. As is clear from this result, it can be confirmed that the hair is repaired only when the styling cosmetic of the present invention is used. This could be inferred that the hair was repaired by the specific action of the protein in the hair. In particular, it can be considered that the silylated hydrolyzed protein was copolymerized with other protein components by the heating action, and the hair was repaired.

Example 3
A curl is formed using the styling cosmetics of the formulation examples shown in Table 5 below (Formulation Examples 1, 14 to 16, Formulation Example 5 and Comparative Examples 1 to 3), and the condition of the hair surface (smooth and slippery) Goodness, smoothness, and goodness of fingering) were judged by the following evaluation criteria using 10 hairy panels (hairpieces) by 10 professional panelists. The results are also shown in Table 5 below.

[Evaluation criteria of hair surface condition (smoothness, smoothness, smoothness, good fingering)]
(Double-circle): Compared with the hair before a process, the goodness of condition improved clearly.
○: Condition improved compared with the hair before treatment.
(Triangle | delta): The condition was comparable compared with the hair before a process.
X: Condition decreased as compared with the hair before treatment.

  From these results, the styling cosmetic of the present invention is clearly more effective than the styling cosmetic of the comparative example containing a resin-based compound in which it is effective to improve the condition effect by blending the phospholipid copolymer and the highly polymerized silicone. It turns out that is better.

  About each prescription example shown in the said Table 5, the friction coefficient was measured with the following method.

(Friction coefficient measurement method)
(A) Target hair Using hair that had been subjected to the bleaching treatment once on hair that had not been subjected to chemical treatment, a fixed hair piece for frictional measurement (hereinafter referred to as “hair bundle for measurement”) was produced.
(B) Initial value measurement (initial value measurement was performed to select a hair bundle having the same characteristics)
(I) Humidity adjustment of hair: The hair bundle for measurement was conditioned at (20 ° C., humidity 60%) for 24 hours or more.
(Ii) Measuring equipment and conditions: A friction tester “KES-SE” (manufactured by Kato Tech Co., Ltd.) was used for the measurement.
(Iii) Measurement is performed by measuring sensitivity: H, frictional static load: 50 gf, sensor: silicon type
The conditions were as follows. Scanning was performed in the forward direction (hair bundle from the root). MIU value
Was multiplied by a coefficient of 0.1 to determine the coefficient of friction (μ).

  The results are also shown in Table 5 above, and it can be seen that the styling cosmetic according to the present invention shows good results even when measured with a device (smooth and smooth) as in the panelists.

Example 4
The styling cosmetics of the formulation examples shown in Table 6 below (Formulation Examples 1 to 5 and Comparative Examples 1 to 3) were applied to the hair, and the antistatic effect (static suppression effect) was confirmed. As a measuring method at this time, DIGTAL ELECTROSTATIC METER MODEL “KDS-0303” (manufactured by Kasuga Denki Co., Ltd.) was used. First, various styling cosmetics are applied to the hair, and the dried hair is rubbed 30 times from the base of the hair with the nylon gloves made of vinyl material toward the tip of the hair to intentionally generate static electricity. The electrostatic voltage on the hair surface was measured. The measurement results are also shown in Table 6 below. Moreover, the evaluation criteria at this time are as follows.
[Evaluation criteria for antistatic effect]
A: The electrostatic voltage is 70 V or less.
○: The electrostatic voltage is 71 to 85V.
(Triangle | delta): Electrostatic voltage shall be 86-100V.
X: The electrostatic voltage is 101 V or higher.

  As is clear from this result, it can be seen that by appropriately blending Sample A and Sample B, and containing a phospholipid copolymer and a highly polymerized silicone, electrostatic charging is suppressed and the hair condition can be maintained well.

It is a drawing substitute photograph which shows the natural length immediately after curling was formed in hair in the formulation examples 1-4 of Example 1. FIG. FIG. 5 is a drawing-substituting photograph showing the natural length after the curl was formed on the hair in Formulation Examples 1 to 4 of Example 1 and left for 24 hours. 6 is a drawing-substituting photograph showing the natural length immediately after curling on hair in Formulation Examples 1, 5 to 13 of Example 1. FIG. FIG. 5 is a drawing-substituting photograph showing the natural length after curling on hair in Formulation Examples 1 to 13 of Example 1 and leaving it for 24 hours. It is a drawing substitute photograph which shows the natural length immediately after forming the curl in hair in the formulation example 1 of Example 1, and Comparative Examples 1-3. It is a drawing substitute photograph which shows the natural length after leaving for 24 hours, after forming curl in hair in the formulation example 1 of Example 1, and Comparative Examples 1-3. It is a drawing substitute photograph which shows the natural length immediately after forming straight in hair in the formulation examples 1-4 of Example 1. FIG. FIG. 3 is a drawing-substituting photograph showing the natural length after the hair was left straight for 24 hours after the hair was straightened in Formulation Examples 1 to 4 of Example 1. It is a drawing substitute photograph which shows the natural length immediately after forming straight in the hair in the formulation examples 1-5 of Example 1. FIG. 5 is a drawing-substituting photograph showing the natural length after the hair was straightened and left for 24 hours in Formulation Examples 1, 5 to 13 of Example 1. FIG. It is a drawing substitute photograph which shows the natural length immediately after forming the straight in hair in the prescription example 1 of Example 1, and Comparative Examples 1-3. It is a drawing substitute photograph which shows the natural length after leaving it to stand for 24 hours after forming straight in hair in the prescription example 1 of Example 1, and Comparative Examples 1-3. It is a drawing substitute photograph which shows the evaluation criteria of straight holding power.

Claims (5)

  (A) hydrolyzed keratin having an average molecular weight of 25,000 to 35000, and (b) a molecular weight of 8000 to 800 including a protein having an average molecular weight measured by gel filtration column chromatography separated and purified from wool or human hair of 11000 and 9700 12000 protein composition is mix | blended, The mixing ratio (hydrolysis keratin: protein composition) of the said hydrolysis keratin and protein composition is 3: 2-1: 10 (mass ratio), It is characterized by the above-mentioned. Styling cosmetics.   The styling cosmetic according to claim 1, wherein the total of the hydrolyzed keratin and the protein composition is 0.2 to 2% by mass in a ratio of the entire styling cosmetic.   The styling cosmetic according to claim 1 or 2, further comprising a silylated hydrolyzed protein.   The styling cosmetic according to claim 3, wherein the amount of the silylated hydrolyzed protein is 0.05 to 0.15% by mass.   Furthermore, the styling cosmetics in any one of Claims 1-4 which mix | blend a phospholipid copolymer and / or highly polymerized silicone.

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