Detergent compositions and processes for the production thereof

A detergent and composition technology, applied in the field of detergent composition and its preparation, can solve the problems of miscellaneous, excessive amino acid, etc., and achieve the effect of excellent foam retention and foaming

Active Publication Date: 2006-11-01
AJINOMOTO CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

More specifically, this method is a method of directly reacting the alkali metal salt of amino acid with fatty acid at high temperature while continuously removing the water generated in the reaction, but it is a non-aqueous system from the time of adding raw materials, and the amino acid salt and amino acid To add separately, more complicated
Moreover, in order to increase the reaction rate and achieve high conversion rate, it is necessary to add an excessive amount of free amino acid to the reaction mixture of alkali metal amino acid and fatty acid, so there is a shortcoming of excess amino acid after the reaction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0042] The preparation method of the present invention is to mix and heat (a) long-chain fatty acid, (b) neutral amino acid, and (c) one or both of sodium hydroxide and potassium hydroxide, and continuously remove the water generated therebetween, thereby A preparation method for obtaining N-long-chain acyl neutral amino acid salts, such as N-long-chain acyl glycine salts. Here, continuously removing the generated water refers to actively removing the water generated by neutralization with an alkaline substance and the water generated by the condensation reaction. Specifically, it can be removed together with an inert gas flow, or removed under reduced pressure, etc. to implement.

[0043] The long-chain fatty acid used as a raw material for the preparation method of the present invention is a saturated or unsaturated linear or branched fatty acid having 8 to 22 carbon atoms. The fatty acid may consist of one type of fatty acid, or may be in the form of a so-called mixed fatt...

Embodiment 1～6 and comparative example 1～3

[0055] Examples 1 to 6 and Comparative Examples 1 to 3

[0056] The detergent components were mixed in the ratio shown in Table 1 below, and an aqueous solution having a total content of the detergent components of 10% by weight was prepared. Each aqueous solution was diluted 40 times (cleaning component concentration 0.25%), stirred with a mixer at a temperature of 30° C., and the amount of foam after stirring for 1 minute and 5 minutes was measured. In addition, the foam retention rate represents the value of the amount of foam after 5 minutes of stirring with a mixer with respect to the amount of foam after 1 minute in percentage. In Example 1, fatty acids were removed from the reaction mixture obtained in Preparation Example 9 described later to obtain a mixture of acyl amino acids and acyl peptides, which were then used as their respective sodium salts.

[0057]The evaluation of the amount of foam and foam retention in Table 1 was evaluated by the amount of foam (value ...

Embodiment 7～12

[0072] Examples 7 to 12 and Comparative Examples 4 to 5

[0073] The same evaluation was performed for alanines. The results are shown in Table 2 below. The evaluation of the amount of foam in this table is the evaluation of the amount of foam after stirring with a mixer for 1 minute, ◎: 250 ml or more, ○: 235 ml or more to less than 250 ml, △: 220 ml or more to less than 235 ml, ×: less than 220 ml. Foam retention evaluation was evaluated by the value of foam retention rate, ⊚: 80% or more, ○: 75% or more to less than 80%, △: 65% or more to less than 75%, ×: less than 65%. The sensory evaluation method was the same as the above-mentioned evaluation method for glycines.

[0074] Example

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PUM

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Abstract

A detergent composition which comprises (A) an N-(long-chain acyl) neutral amino acid or a salt thereof, (B) an N-(long-chain acyl) neutral amino acid dipeptide or a salt thereof, and (C) an N-(long-chain acyl) neutral amino acid tripeptide or a salt thereof at a specific weight ratio and which is excellent in the ability to foam and foam retention and usable in washing the body or the hair to make it nongreasy and moist through drying; a detergent composition which contains (D) a higher fatty acid having 8 to 22 carbon atoms or a salt thereof at a specific weight ratio in addition to the above three components and which is enhanced in the creaminess of foam; and a process for the production of N-(long-chain acyl) neutral amino acids or salts thereof which comprises mixing a neutral amino acid with a long-chain fatty acid and at least one alkali substance selected from between sodium hydroxide and potassium hydroxide and keeping the obtained mixture under heating, if necessary, in an inert gas atmosphere, while continuously removing water formed by the reaction and which process permits the progress of dehydrative condensation at relatively low temperature in a short time and enables efficient production of N-(long-chain acyl) neutral amino acids or salts thereof without any catalyst.

Description

technical field [0001] The present invention relates to a detergent composition, which is characterized in that, as a cleaning component, it contains (A) N-long-chain acyl neutral amino acid or its salt, (B) N-long-chain acyl neutral amino acid dipeptide in a specific weight ratio Or its salt, and (C) N-long-chain acyl neutral amino acid tripeptide or its salt, also contain (D) higher fatty acid or its salt besides, the present invention also relates to the efficient preparation method of this cleaning composition Background technique [0002] N-long-chain acyl neutral amino acid salt is a kind of N-long-chain acyl amino acid salt, which has excellent surface activity and antibacterial effect, and has low irritation, so it is used as a cleaning ingredient in various detergent compositions. [0003] However, when the N-long-chain acyl neutral amino acid salt is used alone as a detergent, there are insufficient foaming properties such as foam volume and foam retention, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/10A61K8/36A61K8/44A61K8/64A61K8/88A61Q1/00A61Q5/02A61Q5/12A61Q9/02A61Q11/00A61Q19/10C07C231/02C07C233/47C07C235/74C11D1/37C11D3/33
CPCA61K8/361A61K8/44A61K8/64A61K8/88A61Q5/02A61Q19/10C07C231/02C11D1/10C11D1/37C07C235/74
Inventor 服部达也
Owner AJINOMOTO CO INC
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