JPH10306017A - Hair treatment composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition free from cationic silicone derivative, effective for protecting split hairs and easily rinsable from the hair by including fucose and a specific fatty acid ester. SOLUTION: The objective composition is produced by including (A) fucose and (B) a fatty acid ester expressed by the formula (R is a 6-12C alkyl; R<1> is a 14-22C alkyl) (e.g. cetyl octanoate or stearyl heptanoate) and excluding a cationic silicone derivative. The amounts of the components A and B in the composition are preferably about 0.1-5 wt.% and 1-20 wt.%, respectively. Addition of preferably 0.5-10 wt.% of amorphous silica to the above composition is effective for improving the performance of especially a gelled composition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair treatment composition which is suitably used especially for split ends.

[0002]

BACKGROUND OF THE INVENTION The present inventors have invented a hair treatment composition which protects split ends and can be easily washed off from the hair. (German Patent 19523651.3). The invention is characterized in that it contains fucose as active ingredient, preferably at least 0.1% by weight, based on the total composition, and is free of cationic silicone derivatives.

[0003]

DISCLOSURE OF THE INVENTION The present inventors have conducted studies to further improve the performance of the hair treatment composition and have completed the present invention. That is, an object of the present invention is to provide a hair treatment composition which protects split ends and can be easily washed off from the hair, and has further improved performance.

[0004]

According to the present invention, a hair treatment composition containing fucose as an active ingredient and containing no cationic silicone derivative is represented by the following general formula (1) in an amount of 1 to 20% by weight of the total composition. And at least one fatty acid ester to be added.

[0005]

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(Wherein, R is a straight-chain or branched-chain C 6 -C 6)
12 represents an alkyl group, and R ¹ represents a linear or branched alkyl group having 14 to 22 carbon atoms.)

The fucose used in the present invention may be pure sugar (ie, D- and L-fucose) or a mixture of saccharides, with a mixture being preferred. A preferable mixture containing a polysaccharide is, for example, a product "Fucogel 1000R" obtained by fermenting a vegetable-derived substance by biotechnology. In addition to fucose, it can also contain galactose and galacturonic acid units. The content of fucose is preferably about 0.1-5% by weight, based on the total composition, in particular 0.25-2.5% by weight, especially about 1% by weight.
It is preferable to set the following.

[0008] Suitable fatty acid esters include natural oils obtained from waterfowl, especially duck glands [Purseline oil (Purc
ellin oil)] and fatty acid esters present in the corresponding synthetic oils known under the generic name "PCL". Particularly preferred esters are cetyl octoate,
And stearyl octanoate, and stearyl heptanoate. Suitable amounts of these esters are from about 1.5 to 15% by weight of the total composition, particularly preferably from about 2.5 to 1%.
0% by weight. These fatty acid esters can contain small amounts of other ordinary natural or synthetic oils and waxes such as isopropyl myristate, stearic acid esters, and palmitic acid esters. In this regard, the various embodiments described in the above-mentioned German patent are also applicable to the present invention.

As a preferred additional component for improving the performance of the composition according to the invention, in particular a gel composition, amorphous silica is preferably present in the total composition in an amount of 0.5 to 10% by weight, particularly preferably 0.75 to 7.5% by weight, most preferably 1 to 5% by weight. The amorphous silica gel can be added as such or in combination with organic substances. Commercially available products used for this purpose include:
"Cosmacol PLG (registered trademark)" can be cited, and this product is not only amorphous silica but also tartaric acid having 12 to 16 carbon atoms.
And a trialkyl ester of citric acid having 12 to 16 carbon atoms.

[0010] Yet another preferred additional ingredient is polyacrylamide, which is preferably used in gel compositions. The amount added is preferably about 0,5 based on the total composition.
2 to 4% by weight, particularly preferably about 0.5 to 2.5% by weight
It is. This polyacrylamide has a molecular weight of 10,
2,000 to 1,000,000, preferably about 25,000
Although a substance having a molecular weight of 0 to 500,000 is mentioned, it is of course possible to use a substance having a higher molecular weight. Examples of polyacrylamide include, for example, trade name "Reten 420
(Registered trademark) "and can be used as long-chain (iso) paraffin or Laureth-
It can also be added as one component of a mixture containing an aliphatic alcohol ethoxylate such as 7. In this regard, see CTFA International Combination Drug Dictionary, 4th edition, page 454. Examples of other useful commercial products include, for example, "Sepi
gel305 (registered trademark) ".

[0011] If desired, the compositions of the present invention may further comprise substances commonly used in hair conditioner products, such as wetting agents, fragrances, emollients, polymers, oils, fats, emulsifiers and the like. Particularly suitable ingredients include vegetable oils, plant extracts and α-hydroxycarboxylic acids, namely tartaric acid, lactic acid, citric acid, malic acid, glycolic acid, glyoxylic acid, pyruvic acid and / or
Or, fruit acids such as pyrrolidone carboxylic acid may be mentioned. The pH value of the composition of the present invention is not particularly limited, but is usually 4 to 8.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the following examples, but the following examples do not limit the present invention. Example 1 A hair treatment solution having the following composition was prepared by a conventional method, and its performance was tested as follows.

(Hair treatment solution) (% by weight) Fucogel 1000 1) 20.0 Panthenol 0.1 Sepigel 305 2) 3.0 N-Lauryl pyrrolidone 0.2 UV absorber 3) 0.5 Cetyl / stearyl octanoate 4) 4.0 Isopropyl myristate 1.0 Perfume 0.2 Water balance 1) Trade name: contains 0.2% by weight of fucose 2) Trade name: contains up to 40% by weight of polyacrylamide 3) Trade name " Parasol MCX ”4) PCL-liquid

Ten bundles of split hair were prepared, and a hair treatment liquid was applied from the root to the tip of the hair using a thumb and a forefinger. After 5 minutes of treatment, the hair tresses were washed and evaluated by hand and light microscopy. As a comparative example, 10 hair bundles were similarly treated using a conventional hair treatment formulation having the following composition.

Comparative Example 1 (% by weight) Non-volatile dimethylpolysiloxane 20 (viscosity: 50,000 cSt at 25 ° C.) Volatile dimethylpolysiloxane 80 (viscosity: 5 cSt at 25 ° C.)

The tip of the hair treated with the composition of the present invention was completely sealed and turned into a single piece of hair, with no composition left on the hair. On the other hand, the tip of the hair treated with the composition of the comparative example was unevenly sealed, the composition was not completely removed from the hair, and the hair had an oily luster.

[0017]

The hair treatment composition of the present invention protects split ends and can be easily washed off from the hair. Conventional hair treatment compositions containing a cationic silicone derivative are inferior in sealing effect of split ends and cannot be easily washed off from the hair. Blocks perm and hair dye.
In the present invention, in particular, the fatty acid ester represented by the above general formula (1) is contained in an amount of 1 to 20% by weight based on the total composition, thereby further improving the effect of separating the split ends of the hair treatment composition. It can be easily washed off from the hair, and has high practical value.

Claims (4)

[Claims] 1. Fucose and the following general formula (1): (Wherein, R represents a straight-chain or branched-chain alkyl group having 6 to 12 carbon atoms, and R ¹ represents a straight-chain or branched-chain alkyl group having 14 to 2 carbon atoms.
2 represents an alkyl group).
A hair treatment composition comprising 1 to 20% by weight of a seed or two or more kinds with respect to a total composition and not containing a cationic silicone derivative. 2. The hair treatment composition according to claim 1, which contains 1.5 to 15% by weight of the total composition of cetyl octanoate and / or stearyl octanoate. 3. The hair treatment composition according to claim 1, wherein the composition contains 2.5 to 10% by weight of stearyl heptanoate relative to the total composition. 4. An agent for treating split ends comprising fucose and the following general formula (1): (Wherein, R represents a straight-chain or branched-chain alkyl group having 6 to 12 carbon atoms, and R ¹ represents a straight-chain or branched-chain alkyl group having 14 to 2 carbon atoms.
2 represents an alkyl group).
Use in combination with more than species.