Amino-acid-type surfactant self-thickening composition

A technology of composition and thickening agent, which is applied in skin care preparations, cosmetics, hair care and other directions, can solve the problems of dirty cleaning, stickiness, easy discoloration, etc.

Active Publication Date: 2014-10-15
SHANGHAI JAHWA UNITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And this will bring the following problems: 1) jelly-like appearance at low temperature; 2) discoloration is prone to occur at high temperature; 3) the foam of amino acid surfactants is suppressed; 4) in particular, the skin fe

Method used

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  • Amino-acid-type surfactant self-thickening composition
  • Amino-acid-type surfactant self-thickening composition
  • Amino-acid-type surfactant self-thickening composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1: Thickening experiment when the ratio of CAPB and LD is 4%:8%

[0037] 1. Experimental materials

[0038] Sodium lauroyl sarcosinate, purchased from Clariant Company, batch number is CNM1004235 (trade name is MEDIALAN LD), also can be referred to as LD in this article; Cocamidopropyl betaine, purchased from Degussa Company, batch number is BE02201043 (trade name TEGO BETAIN F50), which may also be referred to herein as CAPB.

[0039] 2. Experimental equipment:

[0040] Viscometer: Brookfield DV-2Pro

[0041] 3. Experimental process:

[0042] 3.1 Weigh an appropriate amount of cocamidopropyl betaine and sodium lauroyl sarcosinate

[0043] 3.2 Weigh the deionized water, slowly add the mixture of cocamidopropyl betaine and sodium lauroyl sarcosinate into the deionized water while stirring, and stir evenly

[0044] 3.3 Add citric acid to adjust pH

[0045] 3.4 Put the sample in the incubator for 24 hours and take it out. Take an appropriate amount of sample ...

Embodiment 2

[0052] Embodiment 2: Thickening experiment when the ratio of CAPB and LD is 5%:7%

[0053] The system of cocamidopropyl betaine and sodium lauroyl sarcosinate was prepared according to the method described in Example 1, except that the ratio of CAPB to LD was 5%:7%. The results are shown in Table 2.

[0054] Table 2: Viscosity measurement results of CAPB and LD with a ratio of 5%:7%

[0055]

[0056] The results showed that when the percentage of active substances of cocamidopropyl betaine and sodium lauroyl sarcosinate was used at 5%:7%, the maximum viscosity appeared at pH5.40, and the viscosity was 1700m·Pa·s.

Embodiment 3

[0057] Embodiment 3: Thickening experiment when the ratio of CAPB and LD is 6%:6%

[0058] The system of cocamidopropyl betaine and sodium lauroyl sarcosinate was prepared according to the method described in Example 1, except that the ratio of CAPB and LD was 6%:6%. The results are shown in Table 3.

[0059] Table 3: Viscosity measurement results of CAPB and LD with a ratio of 6%:6%

[0060]

[0061] The results showed that when the percentage of active substances of cocamidopropyl betaine and sodium lauroyl sarcosinate was used at 6%:6%, the maximum viscosity appeared at pH5.40, and the viscosity was 2900m·Pa·s.

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Abstract

The invention discloses an amino-acid-type surfactant self-thickening composition, and a preparation method and application thereof. The self-thickening composition comprises cocamidopropyl betaine and sodium lauroylsarcosinate as thickening agents, wherein the weight ratio of cocamidopropyl betaine to sodium lauroylsarcosinate is 1:2-3:1, and pH of the composition is 4.0-5.6. The invention also discloses application of the composition to personal cleaning products.

Description

technical field [0001] The invention relates to the fields of colloid and surface chemistry and cosmetics, in particular to an amino acid-type surfactant self-thickening composition, a preparation method and application of the self-thickening composition. Background technique [0002] N-acyl sarcosinates are biodegradable mild surfactants derived from fatty acids and sarcosine. Typically, sarcosinates are used in the form of solutions of their sodium, potassium, ammonium or isopropylamine salts. N-acyl sarcosinates are produced industrially by the Schotten-Baumam reaction between the sodium salt of sarcosine and the appropriate fatty acid chloride under carefully controlled conditions: [0003] [0004] Where R is usually a fatty acid with a chain length of C10 to C18 formed from lauric acid, coconut acid, palmitic acid, myristic acid or oleic acid. After the reaction is complete, the resulting crude sodium salt is acidified to separate and release the water-insoluble f...

Claims

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Application Information

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IPC IPC(8): A61K8/92A61K8/44A61Q19/10A61Q5/02
Inventor 袁旻嘉郭奕光卢海伟方波
Owner SHANGHAI JAHWA UNITED
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