JP2002241239A - Cosmetic for hair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain cosmetics for the hair having excellent formulation stability and quality stability, high moisture retention and protection activity for the hair. SOLUTION: This hair cosmetic is obtained by using both one or more kinds of chitosan, a partially deacetylated chitin and their salts and a dried product of seawater. Salts of one or more kinds of chitosan, the partially deacetylated chitin and their salts and an organic acid are preferable as the salts of chitosan and the partially deacetylated chitin. The dried product of seawater is preferably selected from salt and bittern obtained by treating seawater using a reverse osmosis membrane formed from a polyamide-based composite membrane to give brine water and concentrating the brine water under heating at 109-114 deg.C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic for hair which imparts an excellent moisturizing effect to hair and can protect the hair from damage. More specifically, the present invention relates to a hair cosmetic comprising one or more of chitosan, partially deacetylated chitin and salts thereof, and a dried product of seawater.

[0002]

2. Description of the Related Art In hair cosmetics, chitosan is blended in order to impart film-forming properties and conditioning properties to hair (Japanese Patent Application Laid-Open No. 58-67611). To further improve hair styling and flexibility, cationic polymer compounds such as cationized cellulose, cationized starch, and cationized guar gum, polyvinylpyrrolidone, vinylpyrrolidone-vinyl acetate copolymer, polyacrylamide, and polyvinyl alcohol Or a film forming agent such as JP-A-8-20516 and 9-6723.
4) In order to improve the moisturizing effect and the hair protecting effect, a technique using proteins such as collagen, elastin, solubilized silk peptide, cationized derivatives thereof, hyaluronic acid, placenta extract and the like in combination (Japanese Patent Laid-Open No. 10-36214; 11
-43422 and 2000-191445).

However, when a polymer compound is used, it is necessary to pay attention to control of the viscosity of hair cosmetics and maintenance of formulation stability, and when a film-forming agent is used, an effective hair protection effect is required. When the amount to be exerted is added, the feeling of use may be impaired. When using naturally-derived proteins such as collagen and elastin and derivatives thereof, hyaluronic acid, and mucopolysaccharides, and organ extracts such as placenta extract, care must be taken to control quality, such as maintaining sufficient antibacterial activity. was there.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a hair cosmetic which has good stability of preparation and stability of quality, and has high moisturizing property and hair protecting effect.

[0005]

As a result of various studies to solve the above-mentioned problems, it has been found that one or more of chitosan, partially deacetylated chitin and salts thereof are used in combination with a dried product of seawater. By including it in hair cosmetics,
The inventors have found that the moisturizing effect and the protective effect on hair are synergistically improved, and have completed the present invention.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Chitosan and partially deacetylated chitin used in the present invention are chitin (β-1,4-poly-N- Acetylglucosamine). Chitosan is a complete deacetylated product of chitin (β-
Among the deacetylated chitins of 1,4-polyglucosamine), those having a degree of deacetylation of about 45 to 55% are preferably used because they exhibit water solubility.

As salts of chitosan or partially deacetylated chitin, inorganic salts such as hydrochlorides and nitrates, acetates,
Organic acid salts such as lactate, pyrrolidone carboxylate, citrate, succinate, malate and the like can be mentioned. For the purpose of the present invention, it is preferred to use organic acid salts. The hair cosmetic according to the present invention contains one or more selected from chitosan, partially deacetylated chitin, and salts thereof. The amount of the cosmetic composition per hair is not required to be so large as to be 0.0001 to 0.0001.
Suitably, it is about 1.0% by weight.

In the present invention, one or two or more selected from the above-mentioned chitosan, partially deacetylated chitin and salts thereof are used.
More than one species and a product obtained by concentrating and drying seawater are used in combination in hair cosmetics. As such a dried product of seawater, a salt or bitter prepared by the method disclosed in Japanese Patent Application No. 2000-303202 can be preferably used because it contains trace ions and organic components of natural seawater without loss. That is, in the present invention, seawater is treated using a reverse osmosis membrane formed by a polyamide-based composite membrane, and brine is obtained without losing trace ions and organic components contained in natural seawater. It is preferable to select and use one or more kinds from the salt and bitter obtained by heating and concentrating at a temperature of ~ 114 ° C. As the content of dried seawater per total amount of hair cosmetics, it is not necessary to mix so much,
It is appropriate to set it to about 0.0001 to 1.0% by weight.

The hair cosmetic according to the present invention includes hair washing cosmetics such as shampoos, rinses and rinses, hair treatments such as hair lotions and hair creams, hair foams, hair sprays, hair gels and set lotions. And the like.

The hair cosmetic composition according to the present invention includes surfactants, animal and vegetable oils, hydrocarbon oils, higher fatty acids, higher alcohols, ester oils, silicone oils and the like as long as the effects of the present invention are not impaired. Oily substances, cationized polymer compounds such as cationized cellulose and cationized guar gum, humectants, thickeners, film-forming agents, pigments, sequestering agents, ultraviolet absorbers, antibacterial and fungicide agents, ultraviolet absorbers , PH
General components to be blended in hair cosmetics, such as a conditioner, can be contained.

[0011]

EXAMPLES Further, the features of the present invention will be described in detail with reference to examples.

First, a method for preparing a dried seawater product and an ionic composition used in the present invention will be described.

[Dry seawater 1 and 2] The electric conductivity is 4
574 liters of 7,000 μs / cm of natural seawater was circulated using a circulating water pressure of 250 psi (1.72 MPa), a pump pressure of 1,300 psi (8.96 MPa), and an irrigation flow of 0.
6 gal / min (2.27 l / min), fresh water flow rate 0.5 gal / min (1.89 l / mi)
Under the condition of n), a reverse osmosis membrane “THIN” manufactured by DuPont
FILM "cycle. Brine obtained by this operation is mixed with seawater to obtain a mixed brine having a higher concentration than seawater. By circulating this mixed brine again through the reverse osmosis membrane, 465 liters of brine with an electric conductivity of 67,600 μs / cm were obtained. This brackish water was heated and concentrated at 109.4 ° C., and 17.1 kg of salt (seawater dried product 1) and 1 kg
4.2 kg of bitter solution was obtained. Next, this bitter liquid was spray-dried with a spray drier to obtain 4.58 kg of bitter powder (seawater dried product 2).

[Dried seawater 3 and 4] The electric conductivity is 4
588 liters of 7,500 μs / cm of natural seawater was circulated using a circulating water pressure of 250 psi (1.72 MPa), a pump pressure of 1,300 psi (8.96 MPa), and a brine flow rate of 0,0 psi.
6 gal / min (2.27 l / min), fresh water flow rate 0.5 gal / min (1.89 l / mi)
Under the condition of n), a reverse osmosis membrane “THIN” manufactured by DuPont
FILM "cycle. Brine obtained by this operation is mixed with seawater to obtain a mixed brine having a higher concentration than seawater. By circulating this mixed brine again through the reverse osmosis membrane, 465 liters of brine with an electric conductivity of 67,700 μs / cm were obtained. This brackish water was heated and concentrated at 110.4 ° C., and 18.8 kg of salt (seawater dried product 3) and 1 kg
5.8 kg of bitter solution was obtained. Next, the bitter liquid was spray-dried with a spray drier to obtain 4.96 Kg of powder bitter (seawater dried product 4).

Table 1 shows the ionic composition of the dried seawater products 1 to 4.

[0016]

[Table 1]

Example 1 Shampoo (1) N-lauroyl-N-methyl-β-alanine 11.7600 (% by weight) Sodium (30.0% by weight aqueous solution) (2) Coconut oil fatty acid amidopropyl betaine 9. 4100 (30.0% by weight aqueous solution) (3) Sodium tetradecene sulfonate 7.8500 (37.0% by weight aqueous solution) (4) N-coconut fatty acid acylmethyltaurine 2.5100 Magnesium (25.0% by weight aqueous solution) (5) Coconut fatty acid diethanolamide 2.6500 (6) Polyethylene glycol monostearate 0.4000 (7) Diethylaminoethylamide stearate 0.1000 (8) Fragrance 0.1500 (9) Glycine 0.5000 (10 ) Disodium ethylenediaminetetraacetate 1.5000 (11) Paraoxybenzoic acid Chill 0.1000 (12) Salicylic acid 0.1000 (13) O- [2-hydroxy-3- (trimethyl 0.4000 ammonio) propyl] hydroxyethylcellulose (14) Seawater dried product 2 0.0010 (15) Chitosan dl-pyrrolidone carboxylate 0.0003 (16) Purified water 62.5687 Production method: (13) is added to (16), and the mixture is heated with stirring and heated to 70 ° C. Other components are added to the mixture, dissolved by stirring, and cooled.

With respect to Example 1, the measurement and evaluation of the amount of hair protein eluted and the amount of water retained in the heat-damaged hair, and a use test were conducted. At that time, in Comparative Example 1, in which only the dried seawater 2 was replaced with purified water in Example 1,
Comparative Example 2 in which only dl-pyrrolidone carboxylate was replaced with purified water and Comparative Example 3 in which both seawater dried product 2 and dl-pyrrolidone carboxylate of chitosan were replaced with purified water were also subjected to the test.

The amount of the hair protein eluted from the heat-damaged hair was determined by drying 5 g of each hair bundle having a length of 20 cm at 80 ° C. for 5 hours under reduced pressure to obtain heat-damaged hair. Immersed in 100 ml of a 0.0% by weight aqueous solution at 40 ° C.
After shaking for 24 hours, the amount of protein in the sample solution was quantified and measured by the Lowry method. The water retention amount was determined by immersing a heat-damaged hair obtained in the same manner as described above in a 1.0% by weight aqueous solution of each sample for 30 minutes, washing with tap water, wiping off water with a towel, and then removing water. ℃, humidity 45%
The hair was allowed to stand for 96 hours under constant temperature and humidity, and the hair weight was measured and determined. Each sample was measured using five heat-damaged hairs, the average value was calculated, and a five-step evaluation was performed according to the evaluation criteria shown in Table 2.

[0020]

[Table 2]

Further, in the use test, 20 male and female panelists in their 20s to 60s were grouped into one group, and each group was allowed to use each of the examples and comparative examples with a blind. The suppleness and texture were scored by sensory evaluation according to the evaluation criteria shown in Table 3, and the average value of 20 persons was obtained. These results are summarized in Table 4.

[0022]

[Table 3]

[0023]

[Table 4]

As is clear from Table 4, in Example 1 of the present invention, the elution of the hair protein from the heat-damaged hair was small, and a good water retention effect was recognized. The hair after use had a good moist feeling, and the evaluation of the suppleness and texture of the hair was also good. On the other hand, among the combined components in the present invention, in Comparative Example 1 containing only dl-pyrrolidone carboxylate of chitosan and Comparative Example 2 containing only dried seawater, considerable elution of hair protein was observed. As a result, the water retention effect was low, and in the results of the use test, the evaluation was low in each item in each use group as compared with the use group in Example 1. Chitosan dl-
In Comparative Example 3, which did not contain both pyrrolidone carboxylate and dried seawater, the elution of the hair protein was remarkable, the water retention effect was hardly recognized, and the results of the use test were not remarkable.

Next, the formulation of another embodiment according to the present invention will be described.

Example 2 Hair Conditioner (1) Octyl palmitate 3.0000 (% by weight) (2) Diglyceryl isopalmitate 2.000 Sebacic acid condensate (3) Dimethyl polysiloxane 2.000 (4 ) Stearyl alcohol 1.3000 (5) Behenyl alcohol 1.3000 (6) Lipophilic glyceryl monostearate 1.0000 (7) Polyoxyethylene (20E.O.) oleyl 0.5000 Ether (8) Stearyl trimethyl chloride Ammonium 1.0000 (9) 1,3-butylene glycol 4.4000 (10) Hydroxyethylcellulose 0.4000 (11) Methyl parahydroxybenzoate 0.2000 (12) Citric acid 0.0100 (13) Dried seawater 10 .0010 (14) dl-pi of chitosan Ridonkarubon salt 0.0003 (15) Purified water 82.6387 (16) Perfume 0.2500 Preparation: (1) mixing the oil phase component to (7), heated and dissolved to 70 ° C.
And On the other hand, the aqueous phase components (8) to (15) are mixed and dissolved,
70 ° C. The oil phase is added to the aqueous phase component, emulsified with a homomixer, cooled, and (16) is added and mixed at 40 ° C.

Example 3 Rinse-integrated shampoo (1) Hexadecanol 3.500 (% by weight) (2) Coconut oil fatty acid diethanolamide 4.000 (3) Dimethyl polysiloxane 0.500 (4) 2- Lauryl-N-carboxymethyl-N- 10.000 hydroxyethylimidazolinium betaine (5) N-lauroyl-N-methyl-β-alanine sodium 1.000 (6) Stearyltrimethylammonium chloride 2.000 (7) Benzo Sodium acid 0.100 (8) Dried seawater 3 0.001 (9) Chitosan lactate 0.002 (10) Purified water 78.797 (11) Fragrance 0.100 Production method: (1) to (3) Mix the oil phase components, heat and dissolve, 70 ℃
And On the other hand, the aqueous phase components (4) to (10) are mixed and dissolved, heated to 70 ° C., and the oil phase component is added thereto and emulsified by a homomixer. After cooling, add (11) at 40 ° C. and mix.

Example 4 Hairfoam stock solution formulation; (1) Dimethylpolysiloxane 5.000 (% by weight) (2) Dipropylene glycol 7.000 (3) Polyoxyethylene (50E.O.) hydrogenated castor oil 1.000 (4) Ethanol 15.000 (5) Methyl paraoxybenzoate 0.150 (6) Fragrance 0.150 (7) Cationized cellulose 3.000 (8) Seawater dried product 4 0.020 (9) Chitosan Citrate 0.005 (10) Purified water 68.675 Filling formula; Undiluted solution 90.000 (wt%) Liquefied petroleum gas 10.000 Production method: (1) is added to the melt of (2) and (3) And homogenize with a homomixer. This is added to a solution prepared by sequentially adding (4) to (6) and (7) to (9) to (10) and mixed to obtain a stock solution. For filling, a can is filled with a stock solution, and a valve is fitted with liquefied petroleum gas.

Example 5 Hair Treatment (1) Liquid Paraffin 15.000 (% by weight) (2) Vaseline 10.000 (3) Beeswax 2.000 (4) Glycerin 5.000 (5) Hydroxyethylcellulose 100 (6) Xanthan gum 0.100 (7) Disodium ethylenediaminetetraacetate 0.100 (8) Methyl paraoxybenzoate 0.100 (9) Dried seawater 2 0.010 (10) Chitosan malate 0.002 (11) dl-pyrrolidone carboxylate of chitosan 0.002 (12) Purified water 67.486 (13) Perfume 0.100 Production method: The oil phase components of (1) to (3) are mixed, heated and dissolved, and ° C
And On the other hand, the aqueous phase components (4) to (12) are mixed and dissolved and heated to 70 ° C., and the oil phase component is added thereto and emulsified by a homomixer. After cooling, add (13) at 40 ° C and mix.

With respect to the above Examples 2 to 5, 20
A use test was conducted using 20 male and female panelists aged from one to sixties as a group, and the moist feeling, suppleness and texture of the used hair were sensory evaluated according to the evaluation criteria shown in Table 3 described above. At that time, in each example, the seawater dried product was replaced with purified water in Comparative Examples 4, 4, 6, and 8, and the chitosan salt was replaced with purified water in Comparative Examples 5 and 5. As Comparative Examples 7, 9 and 11, the test was performed simultaneously. The results are shown in Table 5 as the average value of the evaluation points of 20 persons.

[0031]

[Table 5]

As is clear from Table 5, in the group using the example of the present invention, good evaluation was obtained for all the evaluation items in each group. On the other hand, in the group using the comparative example containing only the seawater dried product or the chitosan salt, the evaluation items were almost average in each evaluation item.

It should be noted that Examples 1 to 5 of the present invention
When stored at 5 ° C. for 6 months, no state change was observed, and in the above-mentioned use test, there were no panelists complaining of skin symptoms, irritation or discomfort that were problematic.

[0034]

As described in detail above, according to the present invention, a cosmetic for hair having good stability of preparation and stability of quality, and having high moisturizing property and hair protecting effect can be provided.

Continued on the front page F term (reference) 4C083 AA082 AA161 AA162 AC022 AC072 AC082 AC122 AC182 AC302 AC312 AC352 AC402 AC422 AC482 AC532 AC582 AC642 AC662 AC692 AC712 AC792 AC852 AD132 AD152 AD282 AD321 AD322 AD352 CC33 CC38 CC39 DD08 DD23 DD27 DD31EE06

Claims (3)

[Claims] 1. A hair cosmetic comprising one or more selected from chitosan, partially deacetylated chitin and salts thereof, and a dried product of seawater. 2. The salt of chitosan and partially deacetylated chitin is a salt of these with an organic acid,
The cosmetic for hair according to claim 1. 3. A brackish water obtained by treating seawater using a reverse osmosis membrane formed by a polyamide-based composite membrane, wherein the dried product of seawater is heated and concentrated at a temperature of 109 to 114 ° C. The hair cosmetic according to claim 1 or 2, wherein the cosmetic is selected from a salt and bitter.