JPH01178597A - Detergent composition - Google Patents

Abstract

PURPOSE:To obtain the title compsn. which has a less skin irritating tendency, is excellent in foaming properties, and gives highly rich feeling in foam quality, by incorporating at least one N-acylamino acid salt and at least one nonionic surfactant composed of a particular alkyl glucoside. CONSTITUTION:At least one N-acylamino acid salt (A) (e.g., triethanolamine N-lauroylglutamate) and at least one nonionic surfactant (B) composed of an alkyl glucoside of the formula (wherein a is 1-15; and n is 7-19) are incorporated as essential components in an A to B wt. ratio of 0.01-100 and in such an amt. that the sum of A+B is 2-50wt.% based on the total amt. of the compsn. According to necessity, 0.1-20wt.% amphoteric surfactant (C), such as sodium 2-undecyl-N,N,N-(hydroxyethylcarboxymethyl)-2-imidazolinate, and a higher alcohol, an oil component, a water-soluble polymer, a cationic polymer, a nonionic surfactant, such as a polyoxyethylene alkyl ether, and other additives (D), are added thereto.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a detergent composition containing an N-acylamino acid salt and an alkyl glycoside and used for hair or body shampoo, clothing or dish detergent, etc. .

[Prior Art] Generally, detergent compositions for hair, clothing, and tableware use anionic surfactants such as alkyl sulfonates as their main ingredients, but there are concerns about irritation to the skin and rough hands. There is. In response, attempts have been made to use N-acylamino acid salts as anionic surfactants;
- When acylamino acid salts are blended, the irritation is slightly alleviated, but since it is a charged surfactant, it is non-uniform.
It is not as perfect as non-charged surfactants such as ゜ON surfactants. Furthermore, when used on hair, N-acyl amino acid salts provide smoothness, but they lack foaming power and have the drawback of lacking a rich feeling in foam quality.

[Problems to be Solved by the Invention] In view of the above circumstances, the present inventors have conducted extensive research and have found that when N-acylamino acid salts and alkyl glycosides are combined in a specific ratio and in a specific amount, The inventors have discovered a cleaning composition that is less irritating, has foaming power, and has an excellent rich foam quality, and has completed the present invention.

[Means for Solving the Problems] That is, the present invention provides one or more N-acylamino acid salts, and the following general formula (A) [wherein a is an integer of 1 to 15, and n is 7 to Represents an integer of 19. ] A cleaning composition characterized by containing one or more nonionic surfactants represented by the following.

The configuration of the present invention will be explained in detail below.

The acyl salts of the N-acylamino acid salts used in the present invention include lauroyl, myristoyl, and valmitoyl groups, and the amino acids include glutamic acid, glycine, β-alanine, etc., and the salts of these N-acylamino acid salts include: Sodium, lithium, monoethanolamine,
These are various salts such as jetanolamine. Note that N-acyl N-alkyl amino acid salts can also be included in the N-acyl amino acid salts of the present invention. In this case, the alkyl group is a methyl, ethyl, propyl, isopropyl group, etc. Preferred N-acylamino acid salts include N-acylamino acids such as N-lauroylglutamic acid, N-myristoylglutamic acid, N-myristoyl-β-alanine, N-valmitoyl-β-alanine, and N-lauroylN-isopropylglycine. Sodium, lithium, monoethanolamine, jetanol of N-acyl N-alkyl amino acids such as N-lauroylsarcosine, N-myristoylsarcosine, N-balmitoylsarcosine, N-lauroyl N-methyl-β-alanine Examples include amine and triethanolamine salts.

The alkyl glycoside, which is a nonionic surfactant used in the present invention, is represented by the above general formula ('B') and has a straight chain alkyl group having 8 to 20 carbon atoms. Those having 10 to 16 straight chain alkyl groups are excellent in foaming and rich feeling, and these may be used alone. The sugar moiety is glucose or an oligomer based on glucose. The number of glucose units is 1 to 15, preferably 1 to 5, and the bonds between glucose:,! It may be α or β or a mixture thereof.

The amount of the N-acyl amino acid salt and alkyl glycoside of the present invention is 2 to 50% by weight, or 5 to 30% by weight, based on the total amount of the detergent composition. If the amount is less than 2% by weight, sufficient foaming power cannot be obtained due to insufficient surfactant, and if the amount is more than 50% by weight, irritation to the skin becomes undesirable.

Further, the weight ratio of N-acylamino acid salt/alkyl glycoside is in the range of 0.01 to 100, preferably 0.1 to 100.
The range is 10. In this composition, the above weight ratio is 0
．． If it is less than 01, it will lack a rich feeling, and if it exceeds 100, it will cause strong irritation to the skin, which is not preferable.

In the present invention, in addition to the above-mentioned essential ingredients, it is desirable to incorporate an amphoteric surfactant into the cleaning composition, as this increases the roughness and richness of the foam quality, depending on the application. Specifically, 2-undecyl-N, N, N
-(Hydroxyethylcarboxymethyl)-2-imidapurine sodium, imidacillin-based amphoteric surfactants such as 2-cocoyl-2-imidazolinium hydroxide-1-carpoxyethyloxy-2-sodium, 2-heptadecyl-N Examples include betaine-based amphoteric surfactants such as -rupoxymethyl-N-hydroxyethylimidazolium betaine and lauryldimethylaminoacetic acid betaine, as well as alkylbetaines, aminobetaines, and sulfobetaines. These amphoteric surfactants may be used alone or in combination of two or more. The blending amount is preferably 0.1 to 20% by weight based on the total amount of the composition, and more preferably 5% by weight.
~15% by weight.

In general, the cleaning composition of the present invention may contain components and additives commonly used in cleaning agents. That is, oils such as higher alcohols, silicone oils, liquid paraffin, and ester oils, water-soluble polymers such as methylcellulose and hydroxymethylcellulose, cation-modified cellulose ether derivatives [Polymer JR (manufactured by Union Carbide Corporation) 1, and polyglycols/polyamines] Condensate [Polycoat H (manufactured by Henkel Hakusuisha) 1, polydimethyldiallylammonium halide [Marcoat 1]
00 (manufactured by Merck & Co.)], a copolymer of dimethyldiallylammonium halide and acrylamide [Marquat 550 (manufactured by Merck & Co., Ltd.)], cationic polymers such as 1, nonionic surfactants such as polyoxyethylene hydrogenated castor oil, polyoxyethylene alkyl ether, etc. agents, natural extracts of animals and plants and their derivatives, organic acids such as citric acid and lactic acid, inorganic salts such as sodium chloride, fragrances, coloring agents, preservatives, chelating agents, ultraviolet absorbers, etc., within a range that does not impair the effects of the present invention. It can be mixed as appropriate.

[Effects of the Invention] The present invention provides a cleansing composition that is less irritating to the skin, has excellent foaming power, and has excellent rich foam quality.

[Example] Next, the present invention will be explained in more detail with reference to Examples. The present invention is not limited thereby. The blending amount is in weight%. The effects were measured using the following test methods and evaluation methods.

Test methods and evaluation methods (1) Protein denaturation rate measurement method (skin irritation method) Using aqueous high-performance liquid chromatography, ovalbumin was measured by adding a sample to an ovalbumin pH 7 buffer solution at a sample concentration of 1%. The rate of modification was measured using the absorption peak at 220 nm.

Ho-Hs Ho: H with a high 220 nm absorption peak of ovalbumin
s: Add the sample to the ovalbumin buffered solvent. At this time, 22
The height of the 0 nm absorption peak was evaluated using the following four-level evaluation.

O...Modification rate less than 30χ○...Modification rate 30% or more, less than 60%△...Modification'X60% or more, less than 80χX...Modification rate 80% or more (2) Rich foam impression A 10% aqueous solution of (Commercial Test R) was lathered into the hair and evaluated by 10 rich 5 volume foam testers based on the following criteria.

○: There is a rich feeling △: Normal ×: There is no rich feeling at all Example 1.2. Comparative Examples 1 to 6 Cleaning compositions shown in Table 1 were prepared and evaluated for protein denaturation rate and rich feeling.

(The following is a blank space) Table 1 As is clear from Table 1, the cleaning composition of the present invention was less irritating and had an excellent rich feeling.

Example 3 Liquid detergent composition A liquid detergent composition consisting of the following composition was prepared by a conventional method.
Prepared.

N-myristoyl sarcosine sodium 15 alkyl glucoside (n = 10. a = 2)
10 Dipropylene glycol 5 Hydroxypropyl methyl cellulose 1 Fragrance
Appropriate amount of ion exchange water
Remaining Example 4 Liquid Cleaning Composition A liquid cleaning composition having the following composition was prepared by a conventional method.
Prepared.

Potassium N-myristoylglutamate 5 alkyl glucoside (n = 15. a = 5)
10 Potassium laurate 10 Potassium myristate 10 Glycerin
5 Carboxyvinyl polymer 1 Fragrance
Appropriate amount of ion-exchanged water Remaining Example 5 Paste Detergent Composition A paste-like detergent composition having the following composition was prepared by a conventional method.

N-myristoyl-β-alanine sodium 5 alkyl glucoside (n = 8. a = 10)
5 Potassium myristate 10 Potassium stearate 10 piece wax 1 Glycerin
5 polyethylene glycol
No. 15 v-■
Appropriate amount of ion-exchanged water Remaining Example 6 Paste condition cleaning agent composition Paste condition cleaning agent consisting of the following composition.
Prepared by removing.

N-lauroyl N-methyl-β-alanine sodium 10 alkyl glucoside (n = 8. a = 10)
10 Potassium stearate 40 Dipropylene glycol 5 Carboxy vinyl polymer 1 Fragrance
Appropriate amount of ion exchange water
Remaining Example 7 Solid detergent composition A solid detergent composition having the following composition was prepared by a conventional method.
Prepared.

N-lauroyl N-ethylglycine potassium 10 argyl glucoside (n = 12. a = 1)
i.

Glycerin 3 Synthetic resin powder 0.2 Aroma family
Appropriate amount of ion exchange water
Remaining Example 8 Shampoo Composition A shampoo composition having the following composition was prepared by a conventional method.
Prepared.

N-balmitoylglutamic acid triethanolamine 5 alkyl glucoside (n = 10. a = 2)
5 Sodium lauryl sulfate 20 Polyethylene glycol stearate 2 Coconut fatty acid diethanolamide 1 Fragrance
Appropriate amount of ion exchange water
Remaining Example 9 Shampoo Composition A shampoo composition having the following composition was prepared by a conventional method.
Prepared.

N-lauroyl sarcosine sodium 5 alkyl glucoside (n = 13. a = 3)
5 Sodium lauroyl methyl taurate 10 Lauroylamide betaine 10 Coconut fatty acid diethanolamide 5 Polyethylene glycol stearate 2 Fragrance
Appropriate amount of ion-exchanged water The remaining compositions of Examples 3 to 9 were less irritating to the skin, had foaming power, and had an excellent rich feeling.

Patent applicant: Shiseido Co., Ltd.

Claims (1)

[Claims] (1) One or more N-acyl amino acid salts and the following general formula (A) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (A) [In the formula, a is an integer from 1 to 15, and n is from 7 to Represents an integer of 19. ] A cleaning composition characterized by containing one or more nonionic surfactants represented by the following.