JPH04372697A - Detergent composition - Google Patents

Abstract

PURPOSE:To obtain a detergent compsn. excellent in cleaning action, foaming action and foam retentivity and little in irritant action against the skin, etc., by combining a salt of a higher fatty acid with a specific saccharide surfactant and an amine oxide. CONSTITUTION:A saccharide surfactant of formula I (wherein R<1> is 8-18C linear or branched alkyl, alkenyl or alkylphenyl; R<2> is 2-4C alkylene; G is 5-6C reducing sugar; m is 0-10; and n is 1-10) is combined with a salt of a higher fatty acid (e.g. potassium laurate) and an amine oxide to prepare a cleaning agent compsn. The amine oxide is, e.g., one represented by formula II (wherein R<3> is 10-20C alkyl or alkenyl; and R<4> and R<5> are each 1-3C alkylene). The obtd. compsn. is useful for washing the face, hands, hair, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a detergent composition, and more particularly to a detergent composition having excellent foaming properties and foam persistence, and which is non-irritating to the skin. Regarding less cleaning compositions. [0002] Hitherto, higher fatty acid salts have been widely used as cleaning ingredients in soaps and the like. For example, potassium laurate is commonly used in liquid soaps, and potassium myristate, along with free fatty acids, is preferred in cream detergents. However, since these ingredients are alkaline, there is a problem in that they give a feeling of dryness and irritation to the skin, eyes, etc. [0003] On the other hand, sugar-based surfactants have the advantage of being less irritating to the skin, but when they are used alone, there is a problem that foaming and cleansing properties are insufficient. Therefore, many attempts have been made to use sugar-based surfactants in combination with other surfactants (Japanese Patent Laid-Open No. 64-6969
No. 0, JP 1-168613, JP 1-178596
No. 1-178597, No. 1-287198). Among these combination detergents, those using a sugar-based surfactant and a higher fatty acid salt have good detergency and foaming properties, and are less irritating. [0004] However, the foam produced by the detergent containing the sugar-based surfactant and the higher fatty acid salt has coarse foam quality and poor sustainability. Therefore, there has been a desire for a detergent that has excellent detergency and foaming properties, has good foam quality, has excellent foam persistence, and is less irritating. [Means for Solving the Problems] Under these circumstances, the present inventors have conducted intensive research to solve the above problems, and have found that if amine oxide is blended in addition to sugar-based surfactants and higher fatty acid salts, The present invention has been completed based on the discovery that a detergent that has excellent detergency and foaming properties, is less irritating to the skin, and has good foam retention. That is, the present invention comprises the following components (A) and (B).
) and (C) (A) Higher fatty acid salt (B) General formula (1) [Formula 2] [In the formula, R1 is a straight chain or branched alkyl or alkenyl having 8 to 18 carbon atoms] or represents an alkylphenyl group, R2 represents an alkylene group having 2 to 4 carbon atoms, G represents a reducing sugar having 5 to 6 carbon atoms, m represents a number from 0 to 10, and n represents a number from 1 to 10. The present invention provides a cleaning composition characterized by containing a sugar-based surfactant (C) amine oxide represented by: [0009] Examples of the higher fatty acid salt as component (A) used in the present invention include basic salts of fatty acids having 8 to 22 carbon atoms. Specific examples include base salts of single fatty acids such as lauric acid, myristic acid, palmitic acid, isostearic acid, and oleic acid, as well as mixed fatty acids such as coconut oil fatty acid and beef tallow fatty acid. Examples of salts include inorganic basic salts such as sodium, potassium, and calcium, ammonium salts, monoethanolamine salts, diethanolamine salts, triethanolamine salts, 2-amino-2-methylpropanol, 2-amino-2-methyl Indicates alkanolamine salts such as propanediol, basic amino acids such as lysine and arginine, etc. These higher fatty acid salts (A) do not necessarily need to be blended as fatty acid salts, and fatty acids and bases may be blended alone to form fatty acid salts in the formulation system. Further, these higher fatty acid salts may be used alone or in combination of two or more. The amount of component (A) added to the cleaning composition of the present invention varies depending on the dosage form, but is preferably from 1 to 90% by weight (hereinafter simply referred to as "%"), particularly from 1 to 50%. [0011] As the sugar-based surfactant of component (B), those in which R1 in formula (1) is an alkyl group having 8 to 18 carbon atoms, particularly 10 to 14 carbon atoms (lauryl group, myristyl group, etc.) are preferred. The basic unit of the sugar moiety of the hydrophilic group is a reducing sugar having 5 to 6 carbon atoms [G in formula (1)]. The reducing sugar is preferably glucose, galactose, or fructose. Further, the average degree of sugar polymerization n is 1 to 10, with n=1 to 4 being particularly preferred. This average degree of sugar polymerization n is R
It is desirable to select in consideration of the physical properties derived from the alkyl group of 1. For example, when R1 is a hydrophobic group having 8 to 11 carbon atoms, n=1 to 1.4 is selected, and n=1 to 1.4 is selected from a hydrophobic group having 12 to 14 carbon atoms. In this case, it is preferable to select n=1.5 to 4.0. In addition, the average sugar polymerization degree n is proton-NMR
Required by law. These sugar-based surfactants can be used alone or in combination of two or more. The amount of component (B) added to the cleaning composition of the present invention varies depending on the dosage form, but is 1 to 40%, particularly 1 to 20%.
% is preferred. The amine oxide as component (C) is as follows:
For example, those represented by the following general formula (2) can be mentioned. [0014] [In the formula, R3 represents an alkyl or alkenyl group having 10 to 20 carbon atoms, and R4 and R5 each represent an alkyl group having 1 to 3 carbon atoms] [0016] Specific examples of the amine oxide include lauryl dimethyl amine oxide, myristyl dimethyl amine oxide, palmity dimethyl amine oxide, stearyl dimethyl amine oxide, and the like. Cocoamide propylamine oxide represented by the following general formula (3) can also be used as the amine oxide of component (C). ##STR4## [In the formula, R6 represents a coconut oil fatty acid residue] These amine oxides can be used alone or in combination of two or more. The amount of component (C) added to the cleaning composition of the present invention varies depending on the dosage form, but is 0.1 to 10%, particularly 1 to 10%.
5% is preferred. In addition to the above-mentioned essential components, the detergent composition of the present invention may optionally contain components commonly used as detergents within the range that does not impair the effects of the invention. For example, propylene glycol, sorbitol,
Moisturizing agents such as glycerin, viscosity modifiers such as carboxyvinyl polymer, methyl cellulose, ethanol, polyoxyethylene glycol distearate, pearlizing agents, fragrances, pigments, ultraviolet absorbers, antioxidants, bactericidal agents, anti-inflammatory agents, Preservatives etc. can be added. The formulation of the cleaning composition of the present invention is not particularly limited, but liquid, cream, etc. are particularly preferred. In order to prepare these liquid or cream-type detergents, the above-mentioned components may be uniformly mixed and dispersed in an aqueous base according to a conventional method. Effects of the Invention The cleaning composition of the present invention has excellent cleaning power and foaming properties, is less irritating to the skin, and has a long-lasting smooth foam, and is particularly suitable for use on the face, hands, etc. It is useful for skin cleansing and hair cleansing. EXAMPLES Next, the present invention will be explained in detail with reference to Examples, but the present invention is not limited thereto. Example 1 A cleaning composition was prepared by uniformly mixing the components listed in Table 1. Regarding the obtained cleaning composition, expert panelist 1
0 people washed their hands, and sensory evaluation was performed on foaming properties and foam sustainability. The results are shown in Table 1. Evaluation criteria Foaming property, foam persistence Very good: ◎ Good: ○ Not so good: △ Poor: × 0026] [Table 1] From Table 1, (A), (B) and (C) No. 3
The detergent composition of the present invention containing these components had better foaming properties and foam retention than detergents containing two of these components. Note that the cleaning composition of the present invention had strong cleaning power and extremely low irritation to hand skin. Example 2 (Facial cleanser) (Composition)

(%) Alkyl saccharide (R1=C10H21, m=
0, G=glucose, n=2)
10 Potassium myristate
2
0 Cocoamide propylamine oxide

3 Glycerin

5 BHT(2
, 6-di-t-butyl-4-methylphenol)
0.1 l-menthol

0.3
ion exchange water

balance total

10
Example 3 (Body shampoo) (Composition)

(%) Alkyl saccharide

Claims (1)

[Claims] Claim 1: The following components (A), (B) and (C) (
A) Higher fatty acid salt (B) General formula (1) [In the formula, R1 represents a straight chain or branched alkyl, alkenyl or alkylphenyl group having 8 to 18 carbon atoms, and R
2 represents an alkylene group having 2 to 4 carbon atoms, G represents a reducing sugar having 5 to 6 carbon atoms, m represents a number from 0 to 10, and n represents a number from 1 to 10] surfactant (C
) A cleaning composition characterized by containing an amine oxide.