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Use of polymer as protease stabilizing agent in detergent and detergent composition

A protease stabilizer, detergent technology, applied in detergent compositions, surface active detergent compositions, organic detergent compositions, etc., can solve the problems of insufficient protease stability, inability to improve protease decontamination performance, etc. Anti-fouling redeposition performance, improving the stability of protease, the effect of improving the retention rate of enzyme activity

Active Publication Date: 2019-01-04
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 polymer as protease stabilizing agent in detergent and detergent composition
  • Use of polymer as protease stabilizing agent in detergent and detergent composition
  • Use of polymer as protease stabilizing agent in detergent and detergent composition

Examples

Experimental program
Comparison scheme
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 washing products, in particular to a use of a polymer as a protease stabilizing agent in a detergent and a detergent composition containing the polymer. Ethoxylation polymine disclosed by the invention is used as the protease stabilizing agent in the detergent, so that the protease stability in the detergent can be promoted, and the dirt removing properties of protease can also be strengthened. The detergent composition containing the ethoxylation polymine and the protease disclosed by the invention is high in protease stability and good in dirt removing properties, the compatibility of the ethoxylation polymine and a formula and an enzyme preparation is good, the ethoxylation polymine and the enzyme preparation can exert synergistic interaction effects, and further the effect of removing protein stains by the detergent composition can be promoted. The enzyme activity conservation rate of protease in the detergent composition disclosed by the invention is increased by 5% or above compared with the enzyme activity conservation rate of a detergent composition only containing the protease (excluding the ethoxylation polymine).

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 Applications(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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