JPS5911400A - Detergent composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cleaning composition having excellent cleaning performance and containing an α-sulfolipid fatty acid resin acylated amino acid salt as an essential component.

Conventionally, it has been known that the disodium and dipotassium salts of α-sulfolipid fat resin salts have the disadvantage that they are substantially insoluble in water and exhibit almost no detergent or foaming power. ing.

Therefore, when this α-sulfolipid fat resin salt is used as a detergent component, in order to increase the foaming power, for example, it is used in combination with an organic ampholyte (Japanese Unexamined Patent Publication No. 49-071003).
Other methods have been proposed.

The present inventors have conducted intensive studies to obtain a composition containing α-sulfolipid fat resin salt with excellent cleaning performance, and have found that α
- a magnesium salt or a substituted or unsubstituted diammonium salt of a sulfo fatty acid, and an alkali metal salt or alkaline earth metal salt of an acylated amino acid having a certain acyl group;
It was discovered that a composition containing a substituted or unsubstituted ammonium salt in a predetermined ratio and having a cleaning liquid pH within a specific range would achieve the object, and based on this knowledge, the present invention was completed. It's arrived.

That is, the present invention provides (A) general formula 0% (in the formula, R is an alkyl group having 12 to 16 carbon atoms, M and M
' is magnesium or a substituted or unsubstituted ammonium group, and M and M' are the same,
and (B) an alkali metal salt, an alkaline earth metal salt, or a substituted or unsubstituted acylated amino acid having an acyl group having an average carbon number of 10 to 16. Contains a substituted ammonium salt, and the weight ratio of component (A) to component (B) is 75:
25 to 35°65, and the pH of the aqueous solution is 5.
．． The purpose of the present invention is to provide a cleaning composition characterized in that it has a molecular weight of 0 to 7.5.

The α-sulfolipid fat resin salt used as component (A) in the composition of the present invention has a structure represented by the general formula, where R has 12 to 12 carbon atoms.
16 alkyl groups, M and M' are magnesium or substituted or unsubstituted ammonium groups, M and M'
They may be the same or still different.

Examples of such substances include magnesium salts, diammonium salts, diammonium salts, and diammonium salts of α-sulfomiristic acid, α-sulfopalmitic acid, α-sulfostearic acid, α-sulfohydrogenated beef tallow fatty acid, and α-sulfohydrogenated palm oil fatty acid. Examples thereof include monoethanolamine salt, dijetanolamine salt, ditriethanolamine salt, triethanolamine, triethanolamine salt, and mixtures thereof.

In this α-sulfolipid fat resin salt, the above formula (1)
When R is less than 12 or more than 16 carbon atoms, the cleaning ability is extremely deteriorated, and when M and IA' are cations other than those mentioned above, no cleaning ability is shown.

The above α-sulfolipid fat resin salt, a fatty acid having a total of 14 to 18 carbon atoms, is sulfonated with sulfuric anhydride to introduce a sulfonic acid group at the α position, and then neutralized with a magnesium compound or substituted or unsubstituted ammonium. Manufactured by.

Next, the acylated amino acid salt used as component (B) in the composition of the present invention is an alkali metal salt, an alkaline earth metal salt, or a substituted or unsubstituted acylated amino acid salt having an acyl group having an average carbon number of 10 to 16. An ammonium salt of the general formula 0% (in the formula, R4-C!- is a saturated or unsaturated acyl group having an average carbon number of 10 to 16, n is 1 or 2, X is an alkali metal, magnesium or a substituted or unsubstituted ammonium group) are preferably used.

Examples of such are N-lauroyl-N-methyl-β-alanine, N-:I:I)v-N-methyl-β-alanine, N-myristoyl-N-methyl-β-
Examples include sodium salts, magnesium salts, ammonium salts, and triethanolamine salts of alanine, N-cocoyl-sarcosine, and N-myristoyl-glutamic acid.

If the average carbon number of the acyl group in the acylated amino acid salt is outside the above range, it will not exhibit excellent detergency even when used in combination with the α-sulfolipid fat resin salt of component (A).

In the composition of the present invention, the weight ratio of component (A) to component (B) is within the range of 75:25 to 35:65, and the pH of the aqueous solution is within the range of 5.0 to 7.5. If the amount is outside these ranges, no synergistic effect between components (A) and (B) will be observed, and good detergency will not be exhibited.

Furthermore, in the composition of the present invention, in addition to the above-mentioned essential components, various additives commonly used in detergent compositions can also be used as desired.

The cleaning composition of the present invention contains α-sulfolipid fat resin salt and unnulated amino acid salt in a specific ratio, thereby achieving the following:
A synergistic effect is exhibited in a specific pH range, showing excellent cleaning power.

Next, the present invention will be explained in more detail with reference to Examples.

The cleaning power of the cleaning compositions in Examples and Comparative Examples was evaluated as follows.

That is, 10 parts each of pharmacopoeial soybean oil and Crisco were added to 60 parts of chloroform. After dissolving in the solution, add Oil Red 0.12 and mix well to prepare a stain solution.

After immersing a glass plate in this solution to contaminate it, the glass plate is air-dried at 25° C. for 30 minutes or more to remove chloroform and prepare a contaminated piece (stain amount: 20 to 23 η/piece). Six of these contaminated pieces were placed in a washing solution at 25℃ and 700℃ for 25 minutes.
After washing by stirring for 3 minutes at the rotation speed of Orpm,
Air dry it, measure its weight, and calculate the oil removal rate after cleaning using the following formula to determine the cleaning power.

Wo: Weight Wl of glass plate, Weight W2 of glass plate after contamination: Weight of glass plate after cleaning and air drying Example 1.
Comparative Example 1 For compositions with different weight compositions of α-sulfo-cured tallow fat retriethanolamine salt and di-acylated sarcosine (Na), an aqueous solution with an active agent concentration of 0.075% (pH 7.0) was used. The ability to clean oil stains was evaluated. The results are shown in Table 1 along with the weight composition of each component.

For comparison, the detergency of compositions other than the composition of the present invention was similarly evaluated, and the results are shown in Table 2 along with the weight composition of each component.

7-8- Example 2. Comparative Example 2 Examples were prepared for compositions in which the weight ratio of α-sulfo fatty acid (α-8F) dijetanolamine salts of various carbon chain lengths to acylated methylalanine monoethanolamine salts of various carbon chain lengths was 60,740. The oil stain cleaning power was evaluated under the same conditions as in Example 1. The results are shown in Table 3 together with evaluations of compositions other than the composition of the present invention for comparison.

11-Example 3. Comparative Example 3 Regarding the composition of α-sulfocured fatty acid salt and acylated amino acid salt as shown in Table 4, the oil stain cleaning power was tested using an aqueous solution with an active agent concentration of 0.075%. evaluated.

The results are shown in Table 4.

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Claims (1)

[Claims] 1(A) General formula % Formula % (R in the formula is an alkyl group having 12 to 16 carbon atoms, M and M
' is magnesium or a substituted or unsubstituted ammonium group, and M and M' are the same,
and (B) an alkali metal salt, an alkaline earth metal salt, or a substituted or unsubstituted acylated amino acid having an acyl group having an average carbon number of lθ to 16. Contains a substituted ammonium salt, and the weight ratio of component (A) and component (Bl) is 75:2.
5 to 35:65, and the pH of the aqueous solution is 5.0.
Cleaning agent 1- Composition characterized in that it has a pH of ˜7.5.