JP2960260B2 - Hairdressing cosmetics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hairdressing cosmetic composition, and more particularly to a hairdressing cosmetic composition containing polyvinylpyrrolidone, which is capable of preventing daily browning.

[0002]

2. Description of the Related Art Conventionally, high molecular compounds have been used to impart set properties to hair styling cosmetics.
There are various types of such polymer compounds, for example, various compounds such as anionic and cationic. Among them, for example, in the case of a gel formulation in which it is desirable not to use an ionic compound because a carboxyvinyl polymer is blended, a nonionic polymer compound is mainly used. Representative examples of such nonionic polymer compounds include polyvinylpyrrolidone and vinylpyrrolidone vinyl acetate copolymer.

[0003] However, when polyvinylpyrrolidone is blended as a nonionic polymer compound, the formulation causes browning with the passage of time, causing a great problem in appearance as a product, and particularly, when such a compound is blended at a high concentration. It becomes a problem in cases. Although measures have been taken to prevent this browning, such as putting cosmetics in an opaque container, no means for preventing the browning phenomenon itself has yet been proposed.

[0004]

Means for Solving the Problems In view of such circumstances, the present inventors have made intensive studies to prevent the above browning. As a result, the present inventors have surprisingly found that, in a hairdressing cosmetic composition containing polyvinylpyrrolidone, a stable hairdressing cosmetic composition that does not cause browning over time can be obtained by blending a specific amount of the sulfur-containing compound. Was completed.

That is, the present invention provides polyvinyl pyrrolidone of 0.1 to 20.0% by weight based on the total amount of cosmetics,
An object of the present invention is to provide a hairdressing cosmetic composition containing 0.001 to 0.5% by weight of a sulfite, a bisulfite and a thiosulfate.

In the present invention, one or more sulfur-containing compounds such as sulfite, hydrogen sulfite and thiosulfate are used. The compounding amount of the sulfur-containing compound is 0.00 based on the total amount of the cosmetic.
It is 1 to 0.5% by weight, preferably 0.01 to 0.15% by weight. If the amount is less than 0.001% by weight, a sufficient browning preventing effect cannot be obtained. On the other hand, if the amount exceeds 0.5% by weight, problems occur in shape retention such as gels, and odors derived from sulfur-containing compounds are used. Not suitable for

The polyvinylpyrrolidone to be incorporated in the hairdressing cosmetic composition of the present invention has a K value (calculated from the viscosity equation of Fikentcher) of 20 to 150, preferably 30 to 150.
120 is used. If the K value is less than 20, no performance as a hair styling agent can be obtained, and if it exceeds 150, the viscosity becomes too high and it is not suitable for use. As polyvinylpyrrolidone, brand name "Rubiscol" from BASF
In addition, those commercially available from ISP as "PVP" and "Plasdon" can be used. Further, the blending amount of the polyvinylpyrrolidone is 0.1 to 20.0% by weight, preferably 0.5 to 1% by weight based on the total amount of the cosmetic.
0.0% by weight. If the amount is less than 0.1% by weight, a sufficient setting effect cannot be obtained, and if the amount exceeds 20.0% by weight, there arises a problem in usability such as difficulty in application.

[0008] As an embodiment of a preferred formulation having no problem in gel shape retention and preventing browning, 0.001 to 5.0% by weight of carboxyvinyl polymer, 0.1 to 20.0% by weight of polyvinylpyrrolidone and 0.00% sulfur-containing compound
A formulation containing 1 to 0.5% by weight is exemplified.

The hairdressing cosmetic composition of the present invention can be produced by mixing and stirring with a desired component by a conventional method, and can be in the form of an emulsion, a hair gel, a hair spray or the like. The hair styling cosmetic composition of the present invention may contain other nonionic resins in addition to polyvinylpyrrolidone, and any type of polymer such as anionic, cationic, and amphoteric resins. Vinyl polymer, various surfactants, oils, humectants, chelating agents,
Alcohols, pH adjusters, fragrances, dyes, and the like can be appropriately blended.

[0010]

Next, the present invention will be described in more detail with reference to Examples and Comparative Examples. In the following Examples and Comparative Examples, “%” and “blending amount” mean “% by weight” unless otherwise specified.

Examples 1 to 5 and Comparative Examples 1 to 3 0.1% of carboxyvinyl polymer, 0.1% of triethanolamine and 5% of polyvinylpyrrolidone were blended. In various amounts, ethanol was added in 25%, and purified water was added in an appropriate amount to prepare a hairdressing cosmetic. Using the hair styling cosmetic as a sample, its stability against chronological browning and odor derived from sulfur-containing compounds was evaluated by the following method.
Table 1 shows the results.

Stability Evaluation Method Browning The degree of browning after standing for 3 months at room temperature and 45 ° C. under fluorescent lamp irradiation was visually evaluated by a specialized panel according to the following evaluation criteria. Evaluation criteria ○: Immediately after preparation △: Slightly browning ×: Browning

Smell derived from sulfur-containing compound The degree of smell derived from the sulfur-containing compound after being left for 3 months at room temperature and 45 ° C. under fluorescent lamp irradiation was evaluated by a specialized panel according to the following evaluation criteria. . Evaluation criteria ○: None △: Appear slightly ×: Appear

[0014]

[Table 1]

As is apparent from Table 1, the polyvinyl pyrrolidone of the present invention was blended, and the sulfur-containing compound was added in an amount of 0.001 to 0.001.
In any of the cosmetics of Examples 1 to 5 containing 0.5% by weight, browning was prevented, and preferable ones which did not generate odor derived from the sulfur-containing compound were obtained. For it,
In Comparative Examples 1 to 3, a product satisfying both the stability against browning and the stability of the odor derived from the sulfur-containing compound was not obtained.

Example 6 Hairgel Ingredients Content% Carboxyvinyl polymer 0.20 Water 59.15 Ethanol 20.00 Triethanolamine 0.10 Fragrance 0.05 Polyvinylpyrrolidone (Rubicol K-30) 20.00 Sodium thiosulfate 0.50 Total 100.00

Carboxyvinyl polymer, ethanol,
The fragrance, polyvinylpyrrolidone and sodium thiosulfate were added to water and stirred to homogenize, and then triethanolamine was added to the mixture and stirred to produce a hair gel.

According to the present invention, in a cosmetic containing polyvinylpyrrolidone, by incorporating a sulfur-containing compound in an amount of 0.50% by weight, browning can be prevented and a preferable hair gel which does not generate odor derived from the sulfur-containing compound can be obtained. Was done.

Example 7 Hairspray Ingredients Content% Polyvinylpyrrolidone (Rubiscol K-30) 6.00 Ethanol 93.25 Fragrance 0.05 Dibutylhydroxytoluene 0.10 Polyoxyethylene (10EO) nonylphenyl ether 0.10 Sodium bisulfite 0.50 Total 100.00

Polyvinylpyrrolidone, fragrance, dibutylhydroxytoluene, polyoxyethylene (10EO)
Nonylphenyl ether and sodium bisulfite were added to ethanol, stirred, and homogenized to obtain a stock solution. 50% by weight of the stock solution was filled with 50% by weight of DME to produce a hair spray.

According to the present invention, in a cosmetic containing polyvinylpyrrolidone, by incorporating a sulfur-containing compound in an amount of 0.50% by weight, browning can be prevented, and a preferable hair spray which does not generate an odor derived from the sulfur-containing compound can be obtained. Obtained.

Example 8 Hair Liquid Ingredients Content% Alcohol 40.00 Polyoxyoleyl ether (20EO) 0.80 Fragrance 0.05 Polyoxyethylene (5EO) Polyoxypropylene (30PO) ) Butyl ether 15.00 Polyvinylpyrrolidone (Rubiscol K120) 5.00 Sodium thiosulfate 0.50 Water 38.65 Total 100.00

All ingredients were mixed, stirred and homogenized to produce a hair liquid. According to the present invention, the cosmetic containing polyvinylpyrrolidone contains a sulfur-containing compound in an amount of 0.1%.
By adding 50% by weight, a preferable hair liquid which prevented browning and did not generate odor derived from the sulfur-containing compound was obtained.

Example 9 Hair Tonic Ingredient Content% Perfume 0.05 Water 33.35 Ethanol 60.00 Dibutyl Adipate 3.00 Benzyl Alcohol 3.00 Polyvinylpyrrolidone (Rubicol K-90) 0.10 Thioglycolic acid Sodium 0.50 Total 100.00

All ingredients were mixed, stirred and homogenized to produce a hair tonic. According to the present invention, the cosmetic containing polyvinylpyrrolidone contains a sulfur-containing compound in an amount of 0.1%.
By adding 50% by weight, a favorable hair tonic which prevented browning and did not generate odor derived from the sulfur-containing compound was obtained.

[0026]

According to the present invention, by blending the sulfur-containing compound in an amount of 0.001 to 0.5% by weight based on the total amount of the cosmetic, it is possible to prevent daily browning in the cosmetic containing polyvinylpyrrolidone. it can.

Claims (1)

(57) [Claims] 1. 0.1 to 20.0 based on the total amount of cosmetics
A hairdressing cosmetic comprising: by weight of polyvinylpyrrolidone and 0.001 to 0.5% by weight of one or more compounds selected from sulfites, bisulfites and thiosulfates.