JP3679569B2 - Aqueous hair tonic composition for hair and scalp treatment - Google Patents

Description

【００１６】
上記評価において、好適指数は値が大きいほど好ましいものであることを表す。これらの結果は、本発明のヘアトニックが予想外に優れたものであることを示す。[0001]
BACKGROUND OF THE INVENTION
The present invention has good applicability to hair and scalp, is comfortable and excellent in regenerative effect, and further imparts a sense of volume, combability, firm touch and gloss to hair, and has an attractive product appearance. The present invention relates to a composition used for treating hair and scalp as a tonic.
[0002]
[Background Art and Problems to be Solved by the Invention]
A normal hair tonic or lotion is provided as a clear hydroalcoholic solution that is applied to the scalp by massage.
Transparent hair lotions that have an attractive pearl luster and that give better hair conditioning performance have not been known so far. The present invention provides a novel product having such properties.
[0003]
[Means for Solving the Problems]
In order to solve the above problems, in the present invention, at least one lower alcohol selected from the group consisting of ethyl alcohol, n-propyl alcohol and isopropyl alcohol;
a) 0.05 to 2.5% by weight, based on the total composition, of a water-soluble polymer containing at least one carboxyl group, and b) 0.05 to 2.5% by weight based on the total composition By containing at least one water-insoluble polymer in combination, an aqueous composition for treating hair and scalp useful as an aqueous hair tonic is constituted.
[0004]
DETAILED DESCRIPTION OF THE INVENTION
German Offenlegungsschrift 4414124 is an aqueous dispersion comprising a water-insoluble polymer having a glass transition temperature of -20 to + 70 ° C. and a water-soluble polymer that is believed to increase the ability to rinse the product from the hair. In particular, hair treatment compositions suitable as hair sprays are described.
These water-soluble polymers are preferably nonionic or amphoteric. The “Ultrahold strong” acrylic acid / ethyl acrylate / N-tert. Butylacrylamide terpolymers are water insoluble and are therefore not suitable for use in hair tonics in the present invention.
[0005]
The proportion of lower alcohol in the hair tonic of the present invention is preferably about 5 to 75% by weight, particularly about 10 to 60% by weight, more preferably about 15 to 50% by weight, based on the total composition.
As water-soluble polymers containing carboxyl groups, known anionic methacrylic acid or acrylic acid homopolymers or copolymers are particularly useful, preferably about 0.1 to 1% by weight, based on the total composition, especially Used in a proportion of about 0.15 to 0.75% by weight.
[0006]
These polymers may be fully or partially neutralized and may be present as sodium or ammonium salts or amine salts, such as mono-, di- or triethanolamine salts. These may be crosslinked as long as they maintain water solubility.
Suitable acrylic acid polymers are commercially available under the trade name “Carbopol”, eg C.I. 934, C.I. 940, C.I. 941 and C.I. It is well known as 1342, “Acrysol”, “Acritamer” and the CTFA name “Carbomer”.
Although acrylic acid polymers are preferred, it is clear that other unsaturated carboxylic acid (co) polymers such as methacrylic acid, itaconic acid or maleic acid polymers are also commonly used if they are sufficiently water soluble. be able to.
[0007]
Styrene homopolymers and copolymers are particularly useful within the scope of the present invention as water-dispersible but water-insoluble polymers. Such polymers include, for example, “Antra 430” or “Polytron 430” type styrene / vinyl pyrrolidone copolymer, for example, “Acronal” type styrene / butyl acrylate copolymer, “Syntran 5002”, etc. Styrene / alkyl acrylate / (meth) acrylic acid copolymer, styrene / acrylamide copolymer, water dispersible styrene / alkyl (meth) acrylate / acrylonitrile / (meth) acrylic acid copolymer, and the like.
Examples of other water-dispersible but water-insoluble polymers include alkyl (meth) acrylate / acrylamide copolymer, alkyl (meth) acrylate / vinyl pyrrolidone copolymer, or partially saponified vinyl acetate / alkyl acrylate copolymer Is mentioned.
[0008]
The preferred content of the water-insoluble and water-dispersible polymer in the hair tonic composition of the present invention is about 0.1 to 1% by weight, particularly preferably about 0.15 to 0.75% by weight, based on the total composition. %.
When the water-insoluble polymer is added to the hair lotion as an aqueous dispersion, the polymer content in this aqueous dispersion is of course calculated on the basis of the final composition.
[0009]
In addition to the active ingredients described above, the hair lotion of the present invention can contain other desired active ingredients and additives.
Examples of such ingredients include especially low contents, for example about 0.01 to 2.5% by weight of vegetable oil, for example about 0.01 to 1% by weight of wheat germ oil, based on the total composition. It is done. In such cases, it is recommended to use an appropriate amount of emulsifier.
Other suitable additives include moisturizing agents such as polyhydric alcohols such as 1,2-propanediol and glycerol; pyrrolidone carboxylic acids; lactic acid, citric acid, tartaric acid, glycolic acid, pyruvic acid and malic acid. Examples include fruit acids; panthenol; and lactylates such as isostearoyl lactylate.
[0010]
Particularly preferred active ingredients are plant extracts, such as oatmeal extract (from oats), chamomile extract, lime flower extract, horse chestnut extract, hawthorn extract and the like, which have an antipruritic effect. It is also possible to use other blood circulation stimulating and / or anti-inflammatory components.
A fragrance | flavor and dye can also be added and when content of antibacterial components, such as ethanol, is not enough, you may add a preservative.
[0011]
A list of suitable formulations of hair and scalp lotions and the conventional ingredients contained in them are published in the academic paper “Grandlagen” by K. Schrader, which is hereby incorporated by reference. und Rezepturen der Kosmetika), 2nd edition (Hutik Buch Ferlark, Heidelberg, 1989), pages 763 to 771.
[0012]
【Example】
The hair lotion of the present invention is produced by using a pre-mixture or a pre-emulsion as necessary, and mixing all components according to a conventional method.
EXAMPLES Next, although an Example demonstrates this invention, these Examples do not limit this invention. In the following examples, the content of each component is indicated by% by weight.
[0013]
(Example 1)
The following components were mixed by a conventional method to produce a dry scalp hair tonic.
(Dry scalp hair tonic)
Allantoin 0.10
Oatmeal extract 0.50
(From oats)
Tocopherol acetate 0.10
Wheat malt oil 0.01
Tartaric acid 0.01
Citric acid 0.01
Polypropylene glycol 0.10
(PPG-420)
Isostearoyl lactylate 0.05
Acrylic acid / C10-30 alkyl 0.15
Acrylate copolymer (Carbopol 2020)
Styrene / vinyl pyrrolidone 0.30
Copolymer (Antara430)
Benzophenone 0.10
Ethanol 25.00
Sodium hydroxide solution, 32% 0.07
PEG-60 hydrogenated castor oil 0.25
Fragrance 0.10
Dye proper amount water balance [0014]
The effect of the present invention was evaluated by a double blind test (one-sided test) by 10 panelists. One side of the paneler's hair and scalp was treated with the composition of Example 1, the other side for comparison, a composition having the same composition as Example 1 with the exception of no styrene / vinyl pyrrolidone copolymer (Comparison Processed in Example 1).
Two hairdressers observed the panelers separately to evaluate the properties of the hair treated with these compositions. The results are shown below.
[0015]

[0016]
In the said evaluation, it represents that a suitable index is so preferable that a value is large. These results indicate that the hair tonic of the present invention is unexpectedly superior.

Claims (7)

At least one lower alcohol selected from the group consisting of ethyl alcohol, n-propyl alcohol and isopropyl alcohol;
a) 0.05 to 2.5% by weight of a water-soluble polymer containing at least one carboxyl group selected from anionic methacrylic acid or acrylic acid homopolymer or copolymer based on the total composition;
b) 0.05 to 2.5% by weight, based on the total composition, of at least one water-insoluble polymer selected from styrene homopolymers or copolymers, and
c) at least one plant extract selected from oatmeal extract (from oats), chamomile extract, lime flower extract, horse chestnut extract, hawthorn extract,
An aqueous hair tonic composition for treating hair and scalp, comprising a combination of 2. An aqueous hair tonic for treating hair and scalp according to claim 1, comprising 0.1 to 1% by weight, based on the total composition, of a water-soluble polymer a) containing at least one carboxyl group Composition. 3. An aqueous hair tonic composition for treating hair and scalp according to claim 1 or 2, characterized in that it contains 0.1 to 1% by weight of at least one water-insoluble polymer based on the total composition as component b). Stuff. The aqueous hair tonic composition for hair and scalp treatment according to any one of claims 1 to 3, comprising a water-insoluble styrene vinylpyrrolidone copolymer as component b). 5. An aqueous hair tonic for treating hair and scalp according to any one of claims 1 to 4, characterized in that it comprises 0.01 to 2.5% by weight of at least one vegetable oil, based on the total composition. Composition. The aqueous hair tonic composition for treating hair and scalp according to claim 5, comprising 0.1 to 1% by weight of wheat germ oil based on the total composition. The aqueous hair tonic composition for hair and scalp treatment according to any one of claims 1 to 6, wherein the pH value is 4 to 7.