JPH01294798A - Liquid detergent composition - Google Patents

Abstract

PURPOSE:To provide a liq. detergent compsn. having excellent foaming and viscosity properties, temp. stability, etc., by blending a particular N-acyl amino acid salt and a long-chain fatty acid ester of polyoxyethylene methylglucose. CONSTITUTION:At least one N-acyl amino acid salt (A) of the formula (wherein R1 is a 7-21C alkyl or alkenyl; each of M1 and M2 is H, an alkali metal or an alkanolamine; and n is 1-2) (e.g., monotriethanolamine salt of N- lauroylglutamic acid) and at least one long-chain fatty acid ester of polyoxyethylene methylglucose (B) (e.g., monostearic acid ester of polyoxyethylene methylglucose) are blended, thereby producing a liq. detergent compsn. It is pref. that the wt. proportions of components (A) and (B) relative to the wt. of the liq. detergent compsn. be respectively in the ranges of about 4-25wt.% and about 0.5-10wt.%.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention provides foaming properties, viscosity properties, The present invention relates to a liquid cleaning composition with good temperature stability.

[Prior Art and Problems] Conventionally, liquid detergents such as shampoos, liquid soaps, and kitchen detergents contain ingredients such as alkylbenzene sulfonates, higher alcohol sulfate ester salts, polyoxyethylene alkyl ether sulfates, and higher fatty acid salts. Contains an anionic surfactant with excellent foaming and cleaning properties. In addition, the viscosity of liquid detergents needs to be adjusted so that they can be easily removed from the container and applied to hands, hair, sponges, etc. for cleaning. In conventional polyoxyethylene alkyl ether sulfate-based liquid cleaning agents, sodium chloride, citrate, and the like are excellent thickeners, so the viscosity can be easily adjusted by adding these. However, there is concern that these anionic surfactants may be irritating to the skin when handled.

In recent years, N-acyl acidic amino acid salts are highly safe for the human body, especially the skin, and are also comfortable to use, so they have been used in bar soaps, cleansing foams, shampoos,
It is also used in liquid cleaning agents such as kitchen detergents. However, when N-acyl acidic amino acid salts are used in liquid detergents, the composition tends to have low viscosity, and thickeners such as sodium chloride alone do not have sufficient effects, so hydroxyalkyl cellulose is usually used. The viscosity is adjusted using a polymer thickener such as polyethylene glycol long chain fatty acid diester. However, when these thickeners are used, there is a problem in that the foaming power tends to decrease.

[Problems to be Solved by the Invention] That is, an object of the present invention is to provide a liquid cleaning composition with excellent foaming properties, viscosity characteristics, and temperature stability.

[Means for Solving the Problems] In view of the above-mentioned drawbacks of cleaning agents, the present inventors have developed N-
As a result of intensive studies to develop a liquid detergent with improved foaming properties, viscosity characteristics, and temperature stability using acyl acidic amino acid salts, we discovered that N-acyl acidic amino acid salts and polyoxyethylene methylglucose long-chain fatty acid esters The present inventors have discovered that a liquid detergent composition with excellent foaming properties, viscosity properties, and temperature stability can be obtained by incorporating the following, and have completed the present invention.

[Configuration of the Invention] That is, the present invention provides the following features: (A) - maximum (I);
At least one acyl acidic amino acid salt and (B)
MlooC(CH2)n CHC0 is a liquid cleaning composition characterized by containing at least one type of polyoxyethylene methylglucose long chain fatty acid ester.
0M2 (1) R, C0NH (wherein R1 is an alkyl group or alkenyl group having 7 to 21 carbon atoms, Ml and M2 are each hydrogen, an alkali metal or an alkanolamine, and n is an integer of 1 or 2).

[Specific explanation of composition] In the N-acyl acidic amino acid salt represented by the above-mentioned maximum (I) used in the present invention, the acidic amino acids that are constituents of the N-acyl acidic amino acid include glutamic acid, aspartic acid, These may be either optically active or racemic forms.As the acyl group (fatty acid residue), an aliphatic acyl group having 8 to 22 carbon atoms is used, and specifically, capryloyl, capryloyl, caproyl, lauroyl, myristoyl, valmitoil, stearoyl,
Examples include behenoyl, oleoyl, cocoyl (coconut oil fatty acid acyl), hydrogenated beef tallow fatty acid acyl, beef tallow fatty acid acyl, and the like. Furthermore, a mixture of these acyl groups may be used.

Examples of N-acyl acidic amino acids used in the present invention include N-capryloylglutamic acid, N-lauroylglutamic acid, N-myristoylglutamic acid, N-
Valmitoylglutamic acid, N-stearoylglutamic acid, N-bebenoylglutamic acid, N-oleoylglutamic acid, N-cocoylglutamic acid, N-hydrogenated beef tallow fatty acid acylglutamic acid, N-caproyl aspartic acid, N-lauroyl aspartic acid, N- Valmitoylaspartic acid, N-stearoyl aspartic acid,
Examples include N-behenoylaspartic acid, N-tallow fatty acid azilaspartic acid, and mixtures thereof.

Examples of the salts of N-acyl acidic amino acids used in the present invention include salts of alkali metals such as sodium, potassium, and lithium, and triethanolamine salts, which can be used alone or in combination.

The polyoxyethylene methylglucose long-chain fatty acid ester used in the present invention is produced by a method of partially esterifying methylglucose with a long-chain fatty acid and then adding ethylene oxide.

The long chain fatty acids that are constituents of the polyoxyethylene methylglucose long chain fatty acid ester used in the present invention include lauric acid, myristic acid, valmitic acid, stearic acid, oleic acid, isostearic acid, coconut oil fatty acid, tallow fatty acid, Examples include hydrogenated beef tallow fatty acids. In esterification, these can be used alone or in combination.

The degree of esterification of the long chain fatty acid is preferably 1 to 3 moles, and the number of moles of ethylene oxide added is not particularly limited, but is preferably 80 to 150 moles.

Examples of the polyoxyethylene methyl glucose long chain fatty acid ester used in the present invention include polyoxyethylene methyl glucose laurate, polyoxyethylene methyl glucose myristate, boxoxyethylene methyl glucose palmitate, and polyoxyethylene methyl stearate. Glucose, oleate polyoxyethylene methylglucose, coconut oil fatty acid polyoxyethylene methylglucose, hydrogenated beef tallow fatty acid polyoxyethylene methylglucose, etc., each of which may be of the monoester type, diester type, or triester type. , these can be used alone or in combination.

In the liquid detergent composition of the present invention, the amount of N-acyl acidic amino acid salt and polyoxyethylene methyl glucose long chain fatty acid ester is not particularly limited, but the amount of N-acyl acidic amino acid salt is 4 to 25% by weight. %,Also,
The polyoxyethylene methylglucose long chain fatty acid ester is preferably blended in an amount of 0.5 to 10% by weight.

In addition to the above-mentioned essential components, the liquid detergent composition of the present invention contains other components having a thickening effect such as hydroxyethyl cellulose, carboxyvinyl polymer, polyethylene glycol fatty acid ester, and long-chain fatty acid jetanolamide. There is no problem with glycerin, propylene glycol, 1,3-butylene glycol, polyethylene glycol, sodium dl-pyrrolidonecarboxylate, sodium lactate, urea, amino acids, proteins, cationized polymers, lanolin or its derivatives, citric acid. Various humectants such as sodium and sodium sulfate, conditioning agents, builders, or common raw materials for detergents such as fragrances, colorants, and preservatives can be appropriately blended.

Furthermore, other anionic surfactants, cationic surfactants,
There is no problem in adding amphoteric surfactants and nonionic surfactants as appropriate within the range that achieves the purpose of the present invention.
These include, for example, long chain fatty acid salts, alkyl sulfates, polyoxyethylene alkyl ether sulfates, α-
Olefin sulfonate, polyoxyethylene alkyl sulfosuccinate, acyl monoethanolamide polyoxyethylene sulfosuccinic acid monoester salt, monoalkyl phosphate, polyoxyethylene alkyl ether phosphate, N-acyl neutral amino acid and its salt , quaternary ammonium salt, N-long chain acyl basic amino acid alkyl ester salt, 2-alkyl-N-carboxymethyl-N
-Hydroxyethylimidazolinium betaine, higher fatty acid amidoprobyl dimethylaminoacetic acid betaine, polyoxyethylene sorbitan fatty acid partial ester, polyoxyethylene glycerin fatty acid partial ester, polyoxyethylene monofatty acid ester, polyoxyethylene hardened mustard oil, chocolate Sugar fatty acid ester, N-acylglutamic acid polyoxyethylene alkyl ether diester, monopyroglutamic acid monofatty acid polyoxyethylene hardened mustard oil, monopyroglutamic acid monofatty acid polyoxyethylene glycerin, fatty acid alkylolamide,
Examples include alkylamine oxides.

The liquid cleaning composition of the present invention can be easily manufactured in the same manner as conventional liquid cleaning compositions. For example, each component is heated and mixed with water to dissolve it, and then cooled to room temperature. It can be easily manufactured using conventional manufacturing equipment.

The liquid detergent composition of the present invention can be applied to many other liquid detergents such as hair shampoo, body shampoo, liquid facial cleanser, kitchen detergent, and liquid soap.

[Example code] Hereinafter, the present invention will be explained in more detail with reference to Examples.

The present invention is not limited to this, but the effects were measured using the following test methods and evaluation methods. Further, in each Example and Comparative Example, the composition is shown in weight %.

10 ml (3
5°C) was collected in a 100ml cylinder, shaken 40 times for 20 seconds, and left to stand. After 1 minute, the foam volume (ml)
was measured.

The viscosity of the perfectly adjusted liquid cleaning composition was measured at 25°C using a B-type rotational viscometer (manufactured by Tokyo Keiki Co., Ltd.), and the viscosity was evaluated as follows.

○: 500 cP or more.

△: 100 cP or more, less than 500 cP.

X: Less than 100 cP.

The liquid cleaning compositions prepared by Shiba Kogyo Dian were heated to 0°C and 150°C for 2 hours.
The samples were left for a week and observed for changes in hue, odor, generation of insoluble matter, and changes in solution state such as solidification.

○: Almost no change in hue, odor, or change in solution state was observed.

Δ: A slight change in hue, odor, or solubility is observed.

×: Significant changes in hue, odor, or solubility were observed.

Example 1 Based on the present invention, liquid cleaning compositions shown in Table 1 were prepared, and their foaming properties, viscosity, and temperature stability were evaluated.

(Results) As shown in Table 1, the liquid cleaning composition of the present invention was excellent in foaming properties, viscosity, and temperature stability.

Example 2 Liquid soap compositions shown in Table 2 were prepared and evaluated for viscosity and temperature stability.

Table 2 Liquid soap composition The viscosity of this composition was 1200 cP, and the foaming power and temperature stability were also good.

Example 3 Based on the present invention, liquid facial cleansing compositions shown in Table 3 were prepared and tested in the manner described above.

Table 3 Liquid facial cleansing composition (results) The liquid facial cleansing composition shown in Table 3 was excellent in foaming properties, viscosity, and temperature stability.

Example 4 Hair shampoo compositions shown in Table 4 were prepared according to the present invention and tested in the manner described above.

Table 4 Hair shampoo composition °) Glucamate DOE-120 (Amercho, USA
1) (Results) The hair shampoo compositions shown in Table 4 were excellent in foaming properties, viscosity, and temperature stability.

Example 5 Body shampoo compositions shown in Table 5 were prepared according to the present invention and tested in the manner described above.

Table 5 Body Shampoo Compositions (Results) The body shampoo compositions in Table 5 were excellent in foaming properties, viscosity, and temperature stability.

Example 6 A kitchen detergent composition shown in Table 6 was prepared based on the present invention,
Tested using the method described above.

Table 6 Kitchen detergent compositions (results) The kitchen detergent compositions in Table 6 were excellent in foaming properties, viscosity, and temperature stability.

[Effects of the Invention] As described above, it is clear that the present invention provides a liquid cleaning composition that is excellent in foaming properties, viscosity characteristics, and temperature stability.

Claims (1)

[Scope of Claims] It is characterized by containing (A) at least one type of N-acyl acidic amino acid salt represented by general formula (I) and (B) at least one type of polyoxyethylene methylglucose long-chain fatty acid ester. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (I) (However, R_1 is an alkyl group or alkenyl group having 7 to 21 carbon atoms, M_1 and M_2 are each hydrogen, an alkali metal, or an alkanolamine, n represents an integer of 1 or 2).