Use of a polymer as a protease stabilizer in detergents and detergent composition

A composition and detergent technology, applied in the directions of detergent compositions, surface-active detergent compositions, detergent composition dyes, etc., can solve the problems of insufficient protease stability, inability to improve protease decontamination performance, etc., and achieve enhanced decontamination. The effect of fouling performance and improving stability

Active Publication Date: 2021-05-04
GUANGZHOU LIBY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the problem that the stability of protease in the existing liquid detergent is insufficient, and the stability of the protease can only be improved by using the existing enzyme stabilizer, but the decontamination performance of the protease cannot be improved, and a kind of polymer in the detergent is provided. As a protease stabilizer, the application of this polymer in detergents can improve the stability and decontamination performance of proteases in detergents. Detergent composition with detergency

Method used

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  • Use of a polymer as a protease stabilizer in detergents and detergent composition
  • Use of a polymer as a protease stabilizer in detergents and detergent composition
  • Use of a polymer as a protease stabilizer in detergents and detergent composition

Examples

Experimental program
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Effect test

preparation example Construction

[0131] Process for the preparation of liquid detergent compositions

[0132] 1) Add part of deionized water to the configuration tank;

[0133] 2) Start stirring, heat up to 50 to 60°C, convert fatty acid into fatty acid salt under alkaline conditions, and stir until completely dissolved;

[0134] 3) Add surfactant and stir until completely dissolved;

[0135] 4) Stop heating, add the remaining amount of deionized water to the configuration tank, and accelerate the cooling;

[0136] 5) When the temperature drops below 40°C, add polymers, enzyme preparations, flavors, preservatives and other components, and stir until they are completely dissolved;

[0137] 6) Add viscosity modifier, stir until completely dissolved, adjust pH value and viscosity, discharge after passing the test.

Embodiment 1

[0139] The formulations of the liquid detergent compositions of Example 1 and Comparative Examples 1-3 are shown in Table 1 below, wherein the weight average molecular weight of the polyethyleneimine main chain in the ethoxylated polyethyleneimine is 300, and the ethoxylated polyethyleneimine The average degree of ethoxylation of polyethyleneimine is 2.

[0140] The formula composition of the liquid detergent composition of table 1 embodiment 1 and comparative example 1-3

[0141]

[0142]

[0143] Stain removal performance test

[0144] The decontamination performance test is carried out according to GB / T 13174-2008. Using JB-01 (carbon black), JB-02 (protein) and JB-03 (sebum) three national standard stained cloths, use WSD-3U fluorescent whiteness meter to measure the whiteness W of the three stained cloths before washing 1 . Prepare washing water with a hardness of 250ppm according to GB / T13174-2008, in which the ratio of calcium and magnesium ions is 3:2.

[014...

Embodiment 2

[0167] The formulations of the liquid detergent compositions of Example 2 and Comparative Examples 4-6 are shown in Table 3 below, wherein the weight average molecular weight of the polyethyleneimine main chain in the ethoxylated polyethyleneimine is 400, and the ethoxylated polyethyleneimine The average degree of ethoxylation of polyethyleneimine is 20.

[0168] The formula composition of the liquid detergent composition of table 3 embodiment 2 and comparative example 4-6

[0169]

[0170] The decontamination performance test method of the liquid detergent composition prepared by comparative examples 4-6 and embodiment 2 is the same as the decontamination performance test method of the above-mentioned embodiment 1 and comparative examples 1-3, and the decontamination performance test results are as shown in table 4 show, among them,

[0171] P3 represents the relative detergency of the albumen stained cloth of the liquid detergent composition (embodiment 2) containing eth...

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Abstract

The invention relates to the technical field of daily chemical cleaning products, in particular to the use of a polymer as a protease stabilizer in detergents and a detergent composition containing the polymer. The ethoxylated polyethyleneimine disclosed by the invention is used as a protease stabilizer in detergents, which can not only improve the stability of proteases in detergents, but also enhance the decontamination performance of proteases. The detergent composition containing ethoxylated polyethyleneimine and protease disclosed by the invention has high protease stability and good decontamination performance; the ethoxylated polyethyleneimine has good compatibility with formulations and enzyme preparations , can play a synergistic effect with the enzyme preparation, and then improve the removal effect of the detergent composition on protein stains; the enzyme activity retention rate of the protease in the detergent composition of the present invention is compared with only protease (excluding ethoxylated poly The enzyme activity retention rate of the detergent composition of ethyleneimine) is improved by more than 5%.

Description

technical field [0001] The invention relates to the technical field of daily chemical cleaning products, in particular to the use of a polymer as a protease stabilizer in detergents and a detergent composition containing the polymer. Background technique [0002] Because protein stains have a large molecular weight and strong bonding strength with fabrics, it is difficult to completely remove them only by surfactants. Therefore, proteases are usually added to detergent formulations to decompose protein stains into small molecules through the catalysis of proteases. Substances, combined with the solubilization and emulsification of surfactants to achieve the purpose of cleaning. In powder detergents, proteases usually have a better enzyme activity retention rate due to physical isolation factors. Compared with powder detergents, liquid detergents have the advantages of more convenient metering, rapid dissolution, and no dust pollution, and are more favored and loved by consu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D3/386C11D1/83C11D1/94C11D3/37C11D3/34C11D3/40C11D3/30C11D3/20C11D3/42C11D3/50C11D3/60
CPCC11D1/008C11D1/04C11D1/14C11D1/146C11D1/22C11D1/28C11D1/29C11D1/662C11D1/72C11D1/83C11D1/90C11D1/94C11D3/2044C11D3/2079C11D3/30C11D3/349C11D3/3723C11D3/3765C11D3/38618C11D3/38663C11D3/40C11D3/42C11D3/50
Inventor 王松营邱振名黄亮江丹
Owner GUANGZHOU LIBY
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