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Method for improving detergency of detergent composition under high-hardness water quality environment and detergent composition

A technology of detergency and detergent, applied in the direction of anionic surface-active compounds, ampholytes/electroneutral surface-active compounds, etc., can solve the difference in molecular weight, surface properties and builder ability, no mention of lignosulfonate structure parameters, water eutrophication and other issues, to achieve good builder performance, excellent washing and decontamination performance, and improve the effect of washing and decontamination.

Active Publication Date: 2015-07-22
GUANGZHOU LIBY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tripolyphosphate has been proven to be a very effective detergent builder. Because phosphorus can lead to eutrophication of water bodies, under the pressure of environmental protection, the laws of various countries have restricted the use of tripolyphosphate in detergents to varying degrees.
There is no literature report that under the water environment with hardness higher than 250ppm, the detergent composition containing lignosulfonate has enhanced cleaning and stain removal performance, and there is no mention of the structural parameters of lignosulfonate such as sulfonation degree, molecular weight , surface properties can lead to differences in their buildability

Method used

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  • Method for improving detergency of detergent composition under high-hardness water quality environment and detergent composition
  • Method for improving detergency of detergent composition under high-hardness water quality environment and detergent composition
  • Method for improving detergency of detergent composition under high-hardness water quality environment and detergent composition

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Embodiment Construction

[0042] The features, benefits and advantages of the present invention will become apparent to those skilled in the art from reading the disclosure of this specification.

[0043] All percentages, fractions and ratios are calculated by weight of the total composition of the present invention, unless otherwise specified. All weights as they pertain to listed ingredients are given at the active level and, therefore, do not include solvents or by-products that may be included in commercially available materials, unless otherwise specified. The term "weight content" herein can be represented by the symbol "%".

[0044] All molecular weights herein are weight average molecular weights expressed in Daltons unless otherwise indicated.

[0045] All formulation and testing herein took place at a 25°C environment unless otherwise specified.

[0046] Herein "comprises", "comprising", "comprising", "containing", "having" or other variations thereof are intended to cover non-closed inclus...

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PUM

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Abstract

The invention discloses a method for improving the detergency of a detergent composition under a high-hardness water quality environment. The method is characterized in that the lignosulfonate is adopted, wherein the lignosulfonate meets the following conditions (a1), (a2) and (a3): (a1) the surface tension of 1% lignosulfonate aqueous solution is lower than 50mN / m; (a2) the weight-average molecular weight of the lignosulfonate ranges from 3000 Daltons to 6000 Daltons; and (a3) the number of sulfonate groups in lignosulfonate molecular weight in every 1000 units in the lignosulfonate ranges from 2.0 to 3.5. The detergent composition containing the lignosulfonate has the enhanced detergency in the high-hardness water.

Description

technical field [0001] The present invention relates to the use of lignosulfonate as a method for improving the washing performance of a detergent composition in a high hardness water environment, in particular to a detergent composition suitable for use in a high hardness water environment, especially a detergent containing lignosulfonate combination. Background technique [0002] In a common washing process, detergent is mixed with tap water to form a cleaning solution that is used to clean soiled substrates. The active components of the detergent, such as surfactants, enzyme preparations, detergent auxiliaries, etc., will elute and decompose the stains by contacting them, and disperse the stains and their fragments stably in the cleaning solution. Then as the washing process progresses, the stains and their debris are carried away from the washing system with the cleaning solution. [0003] However, hard water ions present in water reduce the washing performance of dete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D1/30C11D1/94
Inventor 黄亮杨丽峰徐程马玉杰孙宜恒张利萍沈敏敏
Owner GUANGZHOU LIBY
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