JPS614800A - Body detergent 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 (Field of Industrial Application) The present invention provides an aqueous soap that has excellent appearance transparency, good foaming properties, and is mild to the skin due to the combination of a low-irritation surfactant and a fatty acid soap. The present invention relates to a liquid body cleansing composition.

(Prior Art) Conventionally, as low-irritation body cleansers, alkylimidazolinium betaine, acylglutamic acid alkali salt,
Formulations mainly containing surfactants such as dimethyl higher alkyl betaine and sulfobetaine are known, but these generally have poor foaming properties and must be lathered with a sponge or the like before use. Moreover,
I didn't like the rinsing effect after use, which left a slimy feeling on my skin and lacked a refreshing feeling.

In addition, shampoos whose main ingredient is soap are also known, for example, as shown in Japanese Patent Publication No. 57-57080, but this kind of shampoo has poor transparency at low temperatures and does not contain ethanol or propylene glycol. It requires the addition of a large amount of alcohol such as alcohol, and in addition, the alkalinity of the soap leaves the skin with a tight feeling after use.

(Problems to be Solved by the Invention) Therefore, the present invention solves the problem of poor foaming and lack of cooling sensation in conventional alkylimidazolinium betaine-based detergents as low irritation detergents, and the slimy feeling after washing in N-acylglutamic acid-based detergents. The combination of a low-irritant surfactant and a fatty acid soap eliminates various disadvantages such as the irritation caused by the high alkalinity of soap systems and the addition of a large amount of solubilizer, and provides excellent foaming properties and stability. An object of the present invention is to obtain an improved body cleansing composition (means for solving the problem). Choran alkali salts (Na HK + NH4 + alkanolia (in the above formula, R1 is an alkyl group having 8 to 22 carbon atoms or an alkyl group or alkenyl group having general formula 8 to 22 atoms, R
3 is H or CH, 5, M is Na + K * NH4
or a cation such as an alkanolamine, where N is 2 to
a sulfosuccinic acid-based anionic surfactant, and (in the above formula, R4 is an alkyl group or alkenyl group having 7 to 21 carbon atoms, R5 and R6 are 1 to 3 carbon atoms
In the betaine represented by the following alkyl group), the component (, ) is 40 to 60% by weight, and (b) is 0 to 30% by weight.
% by weight, a mixture in which (C) is 20 to 45% by weight, and a general formula R7C00M...
・(d) (In the above formula, R7 is an alkyl group or alkenyl group having 7 to 21 carbon atoms, M is Na, K,
The object of the present invention is to provide a soap obtained by adding 5 to 25% by weight of a soap represented by NH4t or alkanolamine to the above mixture.

(Function) The fatty acid hydrolyzed collagen alkali salts (&) used in the composition of the present invention are Na.

It is a surfactant neutralized with K, NH4 or alkanolamine, and has a very low irritation and skin protective effect.

Furthermore, the sulfosuccinic acid-based anionic surfactant represented by the general formula (a) is also a surfactant with very low irritating properties.

Furthermore, betaine represented by the above general formula (,) is also a very mildly irritating surfactant.

In addition, the soap represented by the general formula (d) may contain alkyl or alkenyl fatty acids having 7 to 21 carbon atoms (for example, caprylic acid, cabric acid, lauric acid, myristic acid, noglumitic acid, Irritation can be reduced by combining two or more types of fatty acids (stearic acid, instearic acid, oleic acid, henic acid, etc.) with NH5r alkanolamine soap.

In the composition of the present invention, components (a) and (b)
and (C) in a proportion of 40 to 60% by weight of component (a), 0 to 30% by weight of component (b), and 20 to 45% by weight of component (c), with respect to which component (d)
The final mixture obtained by mixing 5 to 25 wt.

On the other hand, the amount of the component (d) added is the same as that of the components (a) and (b).
If the amount is less than 5% by weight based on the mixture of () and (c), the foaming function will deteriorate and the improvement objective in this regard will not be achieved, and if the amount added is more than 20% by weight, Although the foaming is good, the texture of the liquid is not alkaline, and in addition, when the final mixture is made into an aqueous liquid composition containing 5 to 30% by weight, the low temperature stability is poor and precipitation etc. easily occur. However, in order to prevent this, it is necessary to add a solubilizing agent such as ethanol, and this addition causes other stimulatory effects, which is undesirable as it goes against the low irritating properties that are aimed at by the composition of the present invention. .

It should be noted that by adding appropriate amounts of low-irritating fragrances, preservatives, sequestrants, colorants, etc. to the composition of the present invention, it is possible to increase the commercial value of body shampoos and the like made of the composition of the present invention. Of course.

(Example) Next, preferred examples of the composition of the present invention are shown in Table 1 along with comparative examples. Note that the numerical values in the table indicate weight %.

(Effects of the Invention) As is clear from the results in the above examples, the composition of the present invention has good foaming properties, excellent feeling of use, and is effective at low temperatures due to the combination of a low-irritant surfactant. The composition of the present invention has good stability, making it possible to obtain a low-irritation cleansing agent that is particularly gentle on the skin.Moreover, due to the low-irritancy of the composition of the present invention, it is extremely effective when used as a whole-body cleanser for babies. In addition, it can be used in general facial cleansers and whole body cleansers, and its effects are extremely remarkable.

Claims (2)

[Claims] (1) Fatty acid hydrolyzed collagen alkaline salts (Na,
K, NH_4, alkanolamine)... (a) General formula▲ Numerical formula, chemical formula, table, etc.▼...(b) (In the above formula, R_1 is an alkyl group having 8 to 22 carbon atoms or a general An amide group represented by the formula ▲ There are mathematical formulas, chemical formulas, tables, etc. There are sulfosuccinic acid-based anionic surfactants represented by the following cations, N is 2 to 5), and general formulas, numerical formulas, chemical formulas, tables, etc. (In the above formula, R_4 is a carbon atom number of 7 to 21) (alkyl group or alkenyl group, R_5 and R_6 are alkyl groups having 1 to 3 carbon atoms), the component (a) is 40 to 60% by weight, and the component (b) is 0 to 30% by weight.
% by weight, (c) is 20 to 45% by weight, and the general formula R_7COOM...(d) (In the above formula, R_7 is an alkyl group or alkenyl group having 7 to 21 carbon atoms, M is Na , K, NH_4 or alkanolamine) in an amount of 5 to 25% by weight based on the mixture. (2) The body cleansing composition according to claim 1, which comprises an aqueous liquid containing 5 to 30% by weight of the final mixture.