JPH07310100A - Detergent composition - Google Patents

Abstract

PURPOSE:To obtain a detergent composition excellent in an amount of foam and retaining property of foam, free from grating feeling in washing and excellent in feeling to user. CONSTITUTION:This composition is obtained by blending (A) an anionic surfactant (e.g. a sulfuric acid alkyl ester or an alkylbenzene sulfuric acid salt) with (B) a surfactant selected from an amphoteric surfactant (e.g. an alkyldimethylaminoaceticacid betaine or a 2-alkyl-N-carboxymethyl-N- hydroxyethylimidazolinium betaine) and a nonionic surfactant (e.g. a fatty acid alkanolamide or a saccharide fatty acid ester) and (C) a polyaspartic acid (salt). Furthermore, total blend amount of these components A and B is preferably 5-60wt.% and the blend amount of the component C is preferably 0.3-5wt.% based on the composition. The component C is obtained by a method of, e.g. heating and polymerizing aspartic acid.

Description

Detailed Description of the Invention

[0001]

The present invention relates to an anionic surfactant,
The present invention relates to a detergent composition containing at least one surfactant selected from an amphoteric surfactant and a nonionic surfactant and polyaspartic acid or a salt thereof, and more specifically, the amount and retention of foam and the feeling of use are improved. Detergent composition.

[0002]

2. Description of the Related Art Conventionally, detergent compositions such as shampoos, face soaps and kitchen detergents mainly contain an anionic surfactant and an amphoteric surfactant and / or a nonionic surfactant from the viewpoint of foaming. It is used together. Further, amine oxide or the like may be blended as a foaming agent, but there is a problem in foam retention and usability.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a detergent composition with improved foam volume and retention and feel.

[0004]

Means for Solving the Problems As a result of intensive studies in view of such circumstances, the present inventors have found that polyaspartic acid or a salt thereof is used as an anionic surfactant, an amphoteric surfactant and / or a nonionic surfactant. It has been found that the above object can be achieved by blending it in a detergent composition containing and, and the present invention has been completed.

That is, the present invention contains at least one surfactant selected from (A) anionic surfactant, (B) amphoteric surfactant and nonionic surfactant, and (C) polyaspartic acid or a salt thereof. The present invention relates to a cleaning composition.

The anionic surfactant that can be used as the component (A) in the detergent composition of the present invention is not particularly limited, but examples thereof include the following. 1) Sulfate ester type anionic surfactant: alkyl sulfate ester salt, polyoxyethylene alkyl ether sulfate salt, polyoxyethylene fatty acid monoethanolamide sulfate salt and the like.

2) Sulfonate type anionic surfactant:
Alkylbenzene sulfonates, α-olefin sulfonates, α-sulfo fatty acid alkyl ester salts, N-acyl sulfonates such as N-acyl-N-alkyl taurine salts, isethionate salts such as isethionate fatty acid ester salts, and sulfosuccinates Acid alkyl ester salts, polyoxyethylene sulfosuccinic acid alkyl ester salts, fatty acid amide sulfosuccinates and the like, and the like.

3) Carboxylic acid type anionic surfactants: ether carboxylates such as higher fatty acid salts and polyoxyethylene alkyl ether acetates, polyglyceryl alkyl ether acetates, N-acyl glutamate, N-acyl aspartate, N-acyl carboxylic acid salts such as N-acyl glycine salt, N-acyl sarcosine salt, N-acyl-β-alanine salt and N-acyl-N-methyl-β-alanine salt.

4) Phosphate ester type anionic surfactant: monoalkyl phosphate ester salt, polyoxyethylene monoalkyl ether phosphate ester salt and the like.

These anionic surfactants can be used alone or in combination of two or more. As the base component, alkali metals such as sodium and potassium,
Alkaline earth metals such as magnesium, monoethanolamine, diethanolamine, triethanolamine,
Examples include organic amines such as 2-amino-2-methyl-1-propanol and 2-amino-2-methyl-1,3-propanediol, inorganic amines such as ammonia, and basic amino acids such as lysine ornithine and arginine. . These base components are used alone or in combination of two or more.

The amphoteric surfactant that can be used as the component (B) in the detergent composition of the present invention is not particularly limited, but the following can be given as examples. 1) Betaine-type amphoteric surfactants: carbobetaine-type surfactants such as alkyldimethylaminoacetic acid betaine and alkyldihydroxyethylaminoacetic acid betaine, amidebetaine-type surfactants such as fatty acid amidopropyldimethylaminoacetic acid betaine, hydroxysulfobetaine-type surfactant Surfactants, amide sulfobetaine type surfactants, phosphobetaine type surfactants, etc.

2) Imidazoline type amphoteric surfactant: 2-
Alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine, 2-alkyl-N-carboxyethyl-N-hydroxyethyl imidazolinium betaine, 2-alkyl-N-sodium carboxymethyl-N-carboxymethyloxy Ethylimidazolinium betaine etc.

The nonionic surfactant that can be used as the component (B) in the detergent composition of the present invention is not particularly limited, but the following can be mentioned, for example. Fatty acid alkanolamides such as fatty acid monoethanolamide and fatty acid diethanolamide, sugar-based activators such as sucrose fatty acid ester and alkyl polyglycoside.

The molecular weight of the polyaspartic acid used as the component (C) in the detergent composition of the present invention is 500-5.
It is less than 0000, and is 1 from the viewpoint of foaming and feeling of use.
000-30000, especially 1000-10000 is preferable. The molecular weight of polyaspartic acid can be easily measured by a laser ionization time-of-flight mass spectrometer. It can also be measured by molecular sieve chromatography, light scattering, intrinsic viscosity and the like. Such polyaspartic acid is, for example, a method using phosgene (J. Am. Chem. Soc., 82, 2268 (1960)), a method of heat-polymerizing aspartic acid (J. Org. Chem., 26,
2084 (1961)) and other known methods. As the neutralizing base of polyaspartic acid, alkali metals such as sodium and potassium, organic amines such as diethanolamine and triethanolamine, or basic amino acids can be used.

Although similar effects can be seen with polyglutamic acid having a similar structure, its solubility in an acidic region is inferior to that of polyaspartic acid, which is not preferable.

The total amount of the component (A) and the component (B) added to the detergent composition of the present invention is 1 to 80% by weight, preferably 5 to 60% by weight. Further, the blending amount of the component (C) is 0.1 to 10% by weight, preferably 0.3 to 5% by weight in the composition.

The dosage form of the cleaning composition of the present invention as a cleaning agent is not particularly limited, and may be any dosage form such as liquid, paste, gel, solid and powder.

In addition to the above-mentioned essential components, other conventional components can be added to the detergent composition of the present invention in the detergent composition of the present invention within a range that does not impair the effects of the present invention. As such, for example, a cationic surfactant, ethylene glycol, propylene glycol,
Moisturizing agents such as 1,3-butylene glycol, glycerin and sorbitol, glyceryl monostearate, sorbitan monopalmitate, polyoxyethylene cetyl ether, polyoxyethylene stearate ester, polyoxyethylene sorbitan monolaurate, diglycerin monostearate. Emulsifiers such as acid esters, liquid paraffin, petrolatum, solid paraffin, squalane, hydrocarbons such as olefin oligomers, higher alcohols such as stearyl alcohol, isopropyl myristate, isopropyl palmitate, stearyl stearate, octyldodecyl myristate, octyl oleate. Dodecyl,
Esters such as 2-ethylhexanoic acid triglyceride, touch improvers, superfatting agents, drugs such as crude drugs, methylcellulose,
Cellulose derivatives such as hydroxyethyl cellulose, hydroxypropyl cellulose, cationized cellulose,
Natural polymers, viscosity modifiers such as polyoxyethylene glycol distearate, ethanol, carboxyvinyl polymer, antiseptic / antifungal agents such as paraben derivatives, pearlizing agents, anti-inflammatory agents, ultraviolet absorbers, pH adjusters, fragrances, Examples thereof include dyes.

[0019]

The present invention will be described in more detail by way of examples, which should not be construed as limiting the invention thereto. In addition, the compounding amount in this example was expressed by weight%.

Production Example In a 2 L three-necked flask, 266 g of L-aspartic acid and n were added.
-Add 400g of paraffin and 220 in oil bath
Heated at ℃ for 3 hours. At this time, by blowing nitrogen gas, water vapor generated by the reaction was removed to the outside of the system. After completion of the reaction, n-paraffin was removed by filtration, and then 1
Add 530 g of 5% aqueous sodium hydroxide, and add 1 at room temperature.
Stir for hours. This aqueous solution was passed through 2000 ml of a cation exchange resin (“Diaion”) to obtain 215 g of polyaspartic acid. 5 mg of this polyaspartate
And 2,5-dihydroxybenzoic acid 50mg acetic acid 1m
1, dissolved in a mixed solution of 1 ml of acetone and 1 ml of pure water,
Laser ionization time-of-flight mass spectrometer (positive ion /
The molecular weight was measured to be 1000-5
It was 000.

Examples 1 to 7 and Comparative Examples 1 to 7 Evaluation of foam amount and foam retention A cleaning composition having the composition shown in Table 1 was prepared, and it was mixed with water 3 times.
Diluted 0 times. For each diluted solution, take 50 g of the diluted liquid and use a 350 ml household mixer (Iwatani Sangyo Co., Ltd.).
The amount of foam and the retention of foam were evaluated by measuring the volume of foam after 1 minute and 5 minutes after stirring. The foam retention rate is (volume of foam after 5 minutes) / (volume of foam after 1 minute) ×
Expressed as 100.

[0022]

[Table 1]

As is clear from Table 1, the addition of polyaspartic acid improved the amount of foam and the retention of foam.

Example 8 A hair shampoo having the composition shown in Table 2 was prepared, and a sensory evaluation was performed on the amount of foam and the retention of foam. For the evaluation, a cleaning test was conducted by 10 men and women, evaluated according to the following criteria, and an average value was calculated. An average value of 4 or more ◎, 3 or more and less than 4 ○, 2 or more and less than 3 △, less than 2 Was determined as x and the results are shown in Table 2.

Amount of foam 5: Larger 4: Larger 3: Normal 2: Smaller 1: Less

Bubble retention 5: Good 4: Fairly good 3: Normal 2: Fairly bad 1: Bad

[0027]

[Table 2]

As is clear from Table 2, the addition of polyaspartate improved the amount of foam and the retention of foam even after the sensory aged.

Example 9 Hair Shampoo The hair shampoo shown in Table 3 was produced. This hair shampoo showed rich lather and lather retention. Also, there was little squeaking during rinsing.

[0030]

[Table 3]

Example 10 Body Shampoo The body shampoo shown in Table 4 was produced. This body shampoo showed rich lathering and retention of lather. Also, there was no squeak or slimy feeling during rinsing.

[0032]

[Table 4]

Example 11 Face Wash Cream Face wash creams shown in Table 5 were produced. The face wash cream had a fast lather and exhibited rich lather and lather retention. There was no squeaky feeling when rinsing.

[0034]

[Table 5]

Example 12 Soap The soap shown in Table 6 was produced. This soap foams quickly,
It showed rich foaming and foam retention. Also, there was little slimy feeling during rinsing.

[0036]

[Table 6]

[0037]

The cleaning composition of the present invention is excellent in the amount and retention of bubbles during cleaning. In addition, it has less squeaky feeling during rinsing and is excellent in usability.

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Claims (1)

[Claims] 1. A method comprising at least one surfactant selected from (A) anionic surfactant, (B) amphoteric surfactant and nonionic surfactant, and (C) polyaspartic acid or a salt thereof. And a cleaning composition.