JPH051299A - Cleaning agent composition - Google Patents

Abstract

PURPOSE:To obtain a cleaning agent compsn. excellent in detergency and foaming action and little irritant to the skin, etc., by blending a salt of a higher fatty acid with a specific saccharide surfactant and a nonionic surfactant. CONSTITUTION:A cleaning agent compsn. contains a salt of a higher fatty acid (e.g. potassium laurate), a saccharide surfactant of the formula 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) [example; an alkylsaccharide with R<1>=C12H25, (m)=0, G=glucose, and (n)=1.3, and a nonionic surfactant having an HLB of 6 to 17 [example: a polyoxyethylene alkyl ether nonionic surfactant]. This compsn. is excellent in detergency and foaming action and little irritant to the skin, thus being suitable for washing the hair and the skin of a face as well as hands.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detergent composition, and more particularly to a detergent composition which has excellent detergency and foaming properties and is less irritating to skin and the like.

[0002]

2. Description of the Related Art Conventionally, higher fatty acid salts have been widely used as a cleaning component for soap and the like. For example, potassium laurate is often used as a liquid soap, and potassium myristate, along with free fatty acids, is preferably used in cream cleaners. However, since these components are alkaline, there is a problem that they give a feeling of dryness and irritation to the skin, eyes and the like.

On the other hand, nonionic surfactants have the characteristic of being relatively less irritating to the skin, but have the problem of insufficient cleaning power and foaming power. Therefore, attempts have been made to increase the detergency by using the higher fatty acid salt and a nonionic surfactant in combination.

[0004]

However, a detergent containing a higher fatty acid salt and a nonionic surfactant has good detergency, but does not improve foamability at all.
It was not completely satisfactory as a cleaning agent. Therefore, a detergent composition having excellent detergency and foaming property and less irritating to the skin has been desired.

[0005]

Under such circumstances, as a result of intensive studies to solve the above problems, the present inventors have found that if a sugar-based surfactant is added in addition to the higher fatty acid salt and the nonionic surfactant. It was found that a detergent having excellent detergency and foamability and less irritating to the skin etc. was obtained, and the present invention was completed.

That is, the present invention provides the following component (A),
(B) and (C) (A) higher fatty acid salt (B) general formula (1)

[0007]

[Chemical 2]

[Wherein R ¹ represents a linear or branched alkyl, alkenyl or alkylphenyl group having 8 to 18 carbon atoms, R ² represents an alkylene group having 2 to 4 carbon atoms, and G
Represents a reducing sugar having 5 to 6 carbon atoms, m represents a number of 0 to 10 and n represents a number of 1 to 10], and the sugar-based surfactant (C) HLB is 6 to 17 The present invention provides a detergent composition containing a nonionic surfactant.

Examples of the higher fatty acid salt which is the component (A) used in the present invention include basic salts of fatty acids having 8 to 22 carbon atoms. Specific examples include simple fatty acids such as lauric acid, myristic acid, palmitic acid, isostearic acid, and oleic acid, as well as basic salts of mixed fatty acids such as coconut oil fatty acid and tallow fatty acid. Here, as the salt, inorganic basic salts such as sodium, potassium and calcium, ammonium salt, monoethanolamine salt, diethanolamine salt, triethanolamine salt, 2-amino-2-methylpropanol, 2-amino-2-methyl. Examples include alkanolamine salts such as propanediol and basic amino acids such as lysine and arginine. These higher fatty acid salts (A) do not necessarily have 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. These higher fatty acid salts may be used alone or in combination of two or more.

The content of the component (A) in the detergent composition of the present invention varies depending on the dosage form, but is preferably 1 to 90% by weight (hereinafter simply referred to as "%"), particularly 1 to 50%.

The sugar surfactant as the component (B) is preferably ^{one in} which R ^{1 in} the formula (1) is an alkyl group having 8 to 18 carbon atoms, particularly 10 to 14 carbon atoms (lauryl group, myristyl group, etc.). .. Further, the sugar moiety of the hydrophilic group has a reducing sugar having 5 to 6 carbon atoms [G in the formula (1)] as a basic unit. The reducing sugar is preferably glucose, galactose or fructose. Further, the average sugar polymerization degree n is 1 to 10,
= 1 to 4 is particularly preferable. The average degree of sugar polymerization n is R ¹
It is desirable to select in consideration of the physical properties derived from the alkyl group of, for example, when R ¹ is a hydrophobic group having 8 to 11 carbon atoms, n = 1 to 1.4 is 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 degree of sugar polymerization n is determined by the proton-NMR method. These sugar-based surfactants can be used alone or in combination of two or more.

The blending amount of the component (B) in the detergent composition of the present invention varies depending on the dosage form, but is 1 to 40%, particularly 1 to 20%.
% Is preferred.

Nonionic surfactant HLB as component (C)
Is 6 to 17, but preferably 10 to 14. Specifically, as shown in Table 1 below, polyoxyethylene alkyl ether type, polyoxyethylene alkylphenyl ether type, polyoxyethylene polyoxypropylene alkyl ether type, polyoxyethylene polyhydric alcohol fatty acid ester type, polyglycerin alkyl Examples thereof include ether type, polyglycerin fatty acid ester type, and polyoxyethylenated castor oil type. A particularly preferred nonionic surfactant in the present invention is a polyoxyethylene alkyl ether type.

[0014]

[Table 1]

The HLB is an index showing the hydrophilic-lipophilic balance (Hydrophilic-Lypophilic Balance), and in the present invention, the value calculated using the following equation by Oda and Teramura et al. Is used.

[0016]

[Equation 1]

The content of the component (C) in the detergent composition of the present invention varies depending on the dosage form, but is 0.1 to 20%, and particularly 1 to 1.
0% is preferable.

In the detergent composition of the present invention, in addition to the above-mentioned essential components, components usually used as a detergent can be optionally used in combination within a range not impairing the effects of the invention. For example, propylene glycol, sorbitol,
Moisturizers such as glycerin, carboxyvinyl polymers, methyl cellulose, ethanol, viscosity modifiers such as polyoxyethylene glycol distearate, pearlizing agents, fragrances, dyes, ultraviolet absorbers, antioxidants, bactericides, anti-inflammatory agents, Preservatives and the like can be added.

The dosage form of the detergent composition of the present invention is not particularly limited, but liquid form, cream form and the like are particularly preferable. In order to prepare these liquid or cream-like detergents, the above ingredients may be uniformly mixed and dispersed in an aqueous base according to a conventional method.

[0020]

The detergent composition of the present invention is excellent in detergency and foaming property and has little irritation to the skin, and is particularly useful for washing the skin of the face, hands and the like and for washing hair.

[0021]

EXAMPLES The present invention will now be described in detail with reference to examples, but the present invention is not limited thereto.

Example 1 A detergent composition was prepared by uniformly mixing the components shown in Table 1. About the obtained detergent composition, specialized panel 1
0 people were asked to wash their hands, and sensory evaluation was performed on the cleaning power, foaming power and irritation. The results are shown in Table 2. Evaluation criteria Detergency, foaming power and low irritation Very good: ◎ Good: ○ Not very good: △ Poor: ×

[0023]

[Table 2]

From Table 2, 3 of (A), (B) and (C)
The detergent composition of the present invention containing the components had good detergency, foaming power and non-irritating property as compared with the detergent containing the two components.

Example 2 (Facial cleanser) (Composition) (%) Triethanolamine laurate 20 Polyoxyethylene (7) sec-Tetradecyl ether (HLB = 12.1) 3 Alkyl saccharide (R ¹ = C ₁₀ H ₂₁ , m = 0, G = glucose, n = 2) 10 Propylene glycol 5 Ethylene glycol distearyl 3 Myristyl dimethylamine oxide 2 Ethanol 5 Water Total balance 100

Example 3 (shampoo) (composition) (%) potassium myristate 2 lauric acid diethanolamide 3 polyoxyethylene (20) hydrogenated castor oil (HLB = 10.5) 2 alkyl saccharide (R ¹ = C ₁₀ H ₂₁ , m = 0, G = glucose, n = 1.5) 10 Polyoxyethylene sodium lauryl sulfate 5 Propylene glycol 5 EDTA 0.1 Water balance Total 100

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location C11D 1:68)

Claims (1)

Claims 1. The following components (A), (B) and (C) (A) higher fatty acid salt (B) general formula (1) [In the formula, R ¹ represents a linear 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, and G represents 5 to 5 carbon atoms.
6 is a reducing sugar, m is a number from 0 to 10, and n is 1 to
The detergent composition is characterized in that it contains a nonionic surfactant having a sugar-based surfactant (C) HLB of 6 to 17].