JP3024821B2 - Detergent composition - Google Patents

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 having excellent foaming properties and foam sustainability and having little irritation to the skin and the like.

[0002]

2. Description of the Related Art Hitherto, higher fatty acid salts have been widely used as cleaning components for soaps and the like. For example, potassium laurate is often used as a liquid soap, and potassium myristate is used together with free fatty acids in cream-like detergents. However, since these components are alkaline, there is a problem that they give a dry feeling or a irritating feeling to skin, eyes and the like.

[0003] On the other hand, sugar surfactants have the feature of being less irritating to the skin, but when used alone, there has been a problem that foaming properties and detergency are not sufficient. Therefore, many attempts have been made to use sugar surfactants in combination with other surfactants (JP-A-64-69690,
JP-A Nos. 1-168613, 1-178596, 1-178597, 1-
287198). Among these combined detergents, the combined detergent of a sugar-based surfactant and a higher fatty acid salt has good detergency and foaming property, and has low irritation.

[0004]

However, the foam produced by the detergent containing the saccharide-based surfactant and the higher fatty acid salt has a coarse foam quality and poor durability. Accordingly, there has been a demand for a detergent which is excellent in detergency and foaming properties, has good foam quality, is excellent in foam persistence, and has little irritation.

[0005]

Under these circumstances, the present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, if an amphoteric surfactant is added in addition to a sugar-based surfactant and a higher fatty acid salt, The present inventors have found that a cleaning agent which is excellent in detergency and foaming property, has little irritation to skin and the like, and can maintain good foaming can be obtained.

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

[0007]

Embedded image

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,
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]. (C) a saccharide-based surfactant represented by the general formula (2), Betaine type amphoteric surfactants represented by 3) and (4) and sulfonic acid type amphoteric surfactants represented by general formulas (5), (6) and (7)

Embedded image [Wherein, R ³ represents an alkyl, alkenyl, β-hydroxyalkyl or β-hydroxyalkenyl group having 8 to 24 carbon atoms, R ⁴ represents an alkyl group having 1 to ⁴ carbon atoms, and R ⁵ represents 1 carbon atom. To 6 alkylene or hydroxyalkylene groups]

Embedded image Wherein R ³ and R ⁵ have the same meaning as described above, and p is 1
Represents an integer of ~ 20]

Embedded image Wherein R ³ and R ⁵ have the same meaning as described above, and R ⁶ represents a carboxyalkyl or hydroxyalkyl group.

Embedded image [Wherein, R ⁷ represents a saturated or unsaturated hydrocarbon group having 7 to 19 carbon atoms, R ⁸ represents an alkylene group having 1 to 4 carbon atoms, and R ⁹ represents an alkyl group having 1 to 5 carbon atoms. R ¹⁰ represents an alkylene or hydroxyalkylene group having 1 to 4 carbon atoms]

Embedded image [Wherein, R ⁷ and R ¹⁰ have the same meaning as described above, and R ¹¹ and R ¹² each represent an alkyl or alkenyl group having 2 to 8 carbon atoms or 1 to 5 carbon atoms]

Embedded image Wherein R ⁷ and R ¹⁰ have the same meaning as described above, and q is 1
Which represents an integer of from 20 to 20].

The higher fatty acid salt as the component (A) used in the present invention includes, for example, base 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 acids and tallow fatty acids. Here, examples of the salt include inorganic basic salts such as sodium, potassium and calcium, ammonium salts, monoethanolamine salts, diethanolamine salts, triethanolamine salts, 2-amino-2-methylpropanol and 2-amino-2-methyl. It shows alkanolamine salts such as propanediol, and basic amino acids such as lysine and arginine. These higher fatty acid salts (A) do not necessarily need to be compounded as fatty acid salts, but may be formed by mixing a fatty acid and a base alone to form a fatty acid salt in a formulation. These higher fatty acid salts may be used alone or in combination of two or more.

The amount of component (A) to be added to the cleaning 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 preferably 1 to 50%.

As the saccharide-based surfactant of the component (B), those wherein 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.) are preferable. . The sugar moiety of the hydrophilic group has a basic unit of a reducing sugar having 5 to 6 carbon atoms [G in the formula (1)]. As this reducing sugar, glucose, galactose and fructose are preferred. Further, the average degree of sugar polymerization n is 1 to 10, especially n
= 1 to 4 are particularly preferred. The average sugar polymerization degree 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, and 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 determined by a proton-NMR method. These sugar surfactants can be used alone or in combination of two or more.

The amount of the component (B) to be added to the detergent composition of the present invention varies depending on the dosage form, but is 0.1 to 40%, preferably 1 to 2%.
0% is preferred.

The component (C) amphoteric surfactant is selected from the following betaine-type amphoteric surfactants and sulfonic acid-type amphoteric surfactants. (1) Betaine-type amphoteric surfactant (i) Betaine-type amphoteric surfactant represented by the following general formula (2)

[0014]

Embedded image

Wherein R ³ represents an alkyl, alkenyl, β-hydroxyalkyl or β-hydroxyalkenyl group having 8 to 24 carbon atoms, R ⁴ represents an alkyl group having 1 to ⁴ carbon atoms, and R ⁵ represents Shows an alkylene or hydroxyalkylene group having 1 to 6 carbon atoms.] (Ii) Betaine-type amphoteric surfactant represented by the following general formula (3)

[0016]

Embedded image

Wherein R ³ and R ⁵ have the same meaning as described above, and p represents an integer of 1 to 20. (iii) Betaine type amphoteric surfactant represented by the following general formula (4)

[0018]

Embedded image

Wherein R ³ and R ⁵ have the same meaning as described above, and R ⁶ represents a carboxyalkyl or hydroxyalkyl group. (2) Sulfonic acid type amphoteric surfactant (i) Sulfonic acid type amphoteric surfactant represented by (5)

[0020]

Embedded image

[Wherein, R⁷Is saturated with 7 to 19 carbon atoms or
Represents an unsaturated hydrocarbon group;⁸Is an alkyl having 1 to 4 carbon atoms
Represents a kylene group;⁹Represents an alkyl group having 1 to 5 carbon atoms
Then R ^TenIs alkylene or hydroxya having 1 to 4 carbon atoms
Represents a alkylene group] (ii) represented by the following general formula (6)
Sulfonic acid type amphoteric surfactant

[0022]

Embedded image

Wherein R ⁷ and R ¹⁰ have the same meaning as described above, and R ¹¹ and R ¹² each represent an alkyl or alkenyl group having 2 to 8 carbon atoms or 1 to 5 carbon atoms. Sulfonic acid type amphoteric surfactant represented by the following general formula (7)

[0024]

Embedded image

Wherein R ⁷ and R ¹⁰ have the same meaning as described above, and q represents an integer of 1 to 20.

These amphoteric surfactants of component (C) include:
They may be used alone or in admixture of two or more. The compounding amount varies depending on the dosage form, but is 0.1 to 30%, especially 0.5 to 30%.
~ 20% is preferred.

The cleaning composition of the present invention may contain, in addition to the above essential components, components commonly used as cleaning agents, as long as the effects of the present invention are not impaired. For example, propylene glycol, sorbitol,
Humectants such as glycerin, carboxyvinyl polymers, viscosity modifiers such as methylcellulose, ethanol and polyoxyethylene glycol distearate, pearling agents, fragrances, dyes, ultraviolet absorbers, antioxidants, bactericides, anti-inflammatory agents, Preservatives and the like can be added.

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

[0029]

The cleaning composition of the present invention has excellent detergency and foaming properties, has little skin irritation, and maintains a smooth foam, and is particularly useful for cleaning the skin of the face and hands. And it is useful for cleaning hair.

[0030]

Next, the present invention will be described in detail with reference to examples, but the present invention is not limited to these examples.

Example 1 A cleaning composition was prepared by uniformly mixing the components shown in Table 1. About the obtained cleaning composition, a specialized panelist 1
No one had their hands washed, and a sensory evaluation was performed on their foaming properties and foam continuity. Table 1 shows the results. Evaluation criteria Foaming property, foam sustainability Very good: ◎ Good: ○ Not very good: △ Bad: ×

[0032]

[Table 1]

From Table 1, three of (A), (B) and (C)
The detergent composition of the present invention in which the components were blended had better foaming properties and foam sustainability than the detergent in which these two components were blended. In addition, the cleaning composition of the present invention had a strong detergency and was extremely irritating to hand skin.

Example 2 (facial cleanser) (Composition) (%) Alkyl saccharide (R ¹ = C ₁₀ H ₂₁ , m = 0, G = glucose, n = 2) 10 Potassium myristate 20 Laurylhydroxysulfobetaine 3 Lauryl dimethylamine oxide 2 glycerin 10 BHT (2,6-di -t- butyl-4-methylphenol) 0.1 ion exchanged water balance total 100

Example 3 (Body shampoo) (Composition) (%) Alkyl saccharide (R ¹ = C ₁₀ H ₂₁ , m = 0, G = glucose, n = 1.5) 10 Triethanolamine laurate 20 Lauryldimethylaminoacetic acid Betaine 3 Propylene glycol 5 Denatured ethanol 5 Ethylene glycol distearyl 3 Polyoxyethylene myristyl ether 1 Ion-exchanged water Balance total 100

Example 4 (Shampoo) (Composition) (%) Sodium polyoxyethylene lauryl sulfate 5 alkyl saccharide (R ¹ = C ₁₀ H ₂₁ , m = 0, G = glucose, n = 1.5) 5 Triethanol stearate amine 3 lauryl dimethyl sulfobetaine 3 propylene glycol 2 ion-exchanged water balance total 100

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-173898 (JP, A) JP-A-4-213398 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) C11D 10/04 C11D 9/02 C11D 1/68 C11D 1/90

Claims (1)

(57) [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, R ²
Represents an alkylene group having 2 to 4 carbon atoms, and G represents 5 to 5 carbon atoms.
6 represents a reducing sugar, m represents a number of 0 to 10, and n represents 1 to
A sugar-based surfactant represented by the general formula (2), (3) or (4), or a betaine-type amphoteric surfactant represented by the general formula (5), (6) or An amphoteric surfactant selected from sulfonic acid type amphoteric surfactants represented by (7) [Wherein, R ³ represents an alkyl, alkenyl, β-hydroxyalkyl or β-hydroxyalkenyl group having 8 to 24 carbon atoms, R ⁴ represents an alkyl group having 1 to ⁴ carbon atoms, and R ⁵ represents 1 carbon atom. Represents an alkylene or hydroxyalkylene group of 1 to 6] Wherein R ³ and R ⁵ have the same meaning as described above, and p is 1
Represents an integer of from 20 to 20] Wherein R ³ and R ⁵ have the same meaning as described above, and R ⁶ represents a carboxyalkyl or hydroxyalkyl group. [Wherein, R ⁷ represents a saturated or unsaturated hydrocarbon group having 7 to 19 carbon atoms, R ⁸ represents an alkylene group having 1 to 4 carbon atoms, and R ⁹ represents an alkyl group having 1 to 5 carbon atoms. And R ¹⁰ represents an alkylene or hydroxyalkylene group having 1 to 4 carbon atoms. Wherein R ⁷ and R ¹⁰ have the same meaning as described above, and R ¹¹ and R ¹² each represent an alkyl or alkenyl group having 2 to 8 carbon atoms or 1 to 5 carbon atoms. Wherein R ⁷ and R ¹⁰ have the same meaning as described above, and q is 1
Which represents an integer of from 20 to 20].