JPS59230100A - Shampoo composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to shampoo compositions.

Ru. More specifically, the shampoo/boo has a rinsing effect that gives suppleness and smoothness to the hair after washing, and a conditioning effect that suppresses the generation of static electricity after drying, reduces hair fries, and improves combability and brushability. The present invention relates to a composition.

As a method of imparting a rinsing effect to shampoo, there is a method of using 1 to 30% by weight of an anionic surfactant and 0.1 to 5% by weight of a cationic polymer consisting of cationized cellulose or cationized starch. It forms a complex salt that adheres to the hair and provides a rinsing effect, but as the hair dries, it solidifies, causing fried hair and poor conditioning effect. In order to overcome this drawback, amphoteric surfactants are used in combination, but in this case, the above-mentioned complex salt does not precipitate even when diluted with hot water for hair washing, and the rinsing effect is reduced.

The inventors of such compositions. Separately, we have found that a shampoo containing fatty acid amide and anionic polysaccharide has an extremely high rinsing effect.In other words, due to the electropositivity of fatty acid amide, anionic polyS is easily insoluble in complexes. When washing hair, it adheres to the hair and exhibits an excellent rinsing effect.Furthermore, this effect is due to fatty acid amide content of 0.1 to 5%, anionic polysaccharide content of 0.05 to 0.
A sufficient effect can be clearly seen at 1%, and only a very small amount of anionic polysaccharide is required, and the above-mentioned conventional shampoo composition problem of solidification during drying after hair washing does not occur.

Another requirement of the present invention is that alcohol is another component. In other words, since the complex salt of the fatty acid amide and the anionic polysaccharide is insoluble, the transparency of the composition is slightly deteriorated, and the commercial value of the composition as a shabu/boo is reduced. The present inventors found that the addition of alcohol is effective in solving this problem, and furthermore that when such a composition is diluted with hot water during hair washing, the complex salt precipitates immediately, so there is no effect on the rinsing effect. They found that there was no effect.

In carrying out the present invention, the fatty acid amide can be selected from amides, monoalkylamides, dialkylamides, and hydroxyalkylamides of various fatty acids having 8 or more carbon atoms. If the amount of fatty acid amide is less than 0.81%, the rinsing effect will be insufficient, and if it is more than 5%, no increase in the effect can be expected. is a substance that fixes the above-mentioned fatty acid amide, and examples include carrageenan, 7-arselan, agar, algi/acid, pectin, and za/tan, and it is also possible to combine one or more of these. be.

Among them, carrageenan is preferable because it has a particularly large effect and has a strong emulsifying effect. Carrageena is a galactan sulfate ester contained in red algae, including alicampa, lambda,
It is roughly divided into three types: Kappakara Gina, and its properties are said to vary greatly depending on the cation species bonded to the sulfate group. Particularly preferred is the sodium salt of gina/iota carrageenan. The amount used is 0.05 to 0.1
It is selected from a range of 0.05% by weight or less, and the formation of a complex salt with fatty acid amide is insufficient;
．． If it exceeds 1% by weight, the increase in the effect is not obvious, and it is also undesirable because it causes hair fries due to solidification during drying after washing. It is a substance, an alcohol,
In addition to monohydric alcohols such as inglopanol, dihydric alcohols such as ethylene glycol and propylene glycol,
Trihydric alcohols such as glycerin can also be used.

-However, alcohols having 4 or more carbon atoms have a markedly undesirable odor.

The shampoo/boo composition selected based on the present invention has excellent rinsing and conditioning effects.

The present invention will be described in detail below based on Examples.

Example 1 A shampoo composition having the composition shown in the table was diluted with 10% water at 40°C.
The hair of 301 was shaken and washed in the liquid IQLA, and then rinsed with running water for 1 minute.

After squeezing it, I placed it on a strain gauge and measured the force when combing it with a comb. The smaller the force at this time, the better the combing.

After drying with a hair dryer and leaving in an atmosphere of 25° C. and relative humidity of 65° C., a combing test was performed again to observe hair flies.

Comparative example Na lauryl sulfate 10
% lauryl alcohol ethoxysulfate) Na 3
%Cation/Cellulose 5%
As a result of evaluating the shampoo composition consisting of the following using the above-mentioned method, it was found that hair fries occurred at a comb length of 200P.

In the table A; Stearin diethalamide B: Lauric acid dimethylamide C: Iota carragina 7N & salt D: Campa carragina 7 Na salt E-nyalginate Na F: Ethanol G: ethylene glycol represents.

In addition, in the hair fry column O: Not recognized as occurring ×: Occurrence is observed.

Transparency of the composition - Measure the transmittance at a wavelength of 660 nm by placing it in a glass cell with an optical path length of 10 mm.

It can be seen from the table that the shampoo composition according to the invention is good.

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Claims (1)

[Claims] 1. Amides of fatty acids having 8 or more carbon atoms 0, 1 to 5
%, anionic polysaccharide 0.05 to 0.1%, and alcohol 1 to 20%. The shampoo composition according to claim 1, wherein the 2,7-ionic polysaccharide is comprised of one or a combination of two or more selected from carrageenan, farcellane, agar, sodium alginate, pectin, and tan/tan. 3. The shampoo composition according to claim 1, wherein the anionic polysaccharide is a sodium salt of iota carrageenan, a sodium salt of kappa carrageenan, or a combination thereof. 4. The shampoo composition according to claim 1, wherein the alcohol consists of one or a combination of two or more selected from ethanol, impropatol, ethylene glycol, phlopylene gellicol, and glycerin.