Laundry Liquid Composition for Lipase Stability and Foam Control
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Solution Overview
Problem
Existing laundry liquid compositions do not effectively stabilize lipases when combined with alkoxylated ester surfactants, leading to potential foam reduction issues.
Innovation Solution
A laundry liquid composition comprising 2 to 40% methyl ester ethoxylate surfactant with at least 10% C16/18 alkyl chains and a mol average of at least 8 ethoxylate groups, combined with a lipase, enhances stability and performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If lipase is combined with alkoxylated ester surfactant in laundry liquid composition, then cleaning performance is improved, but foam stability deteriorates
Solution Approach 1:
The patent changes the chemical parameters of the surfactant by specifying a mol average of at least 8 ethoxylate groups and at least 10% C16/18 alkyl chains. This parameter modification allows the surfactant to coexist stably with lipase while maintaining cleaning performance, resolving the foam stability issue.
2Reliability
If lipase is combined with alkoxylated ester surfactant in laundry liquid composition, then enzymatic activity is enhanced, but composition stability deteriorates
Solution Approach 1:
The patent specifies precise compositional parameters including 2-40% methyl ester ethoxylate surfactant with at least 8 ethoxylate groups and specific C16/18 alkyl chain content. These parameter changes create a stable composition environment that preserves enzymatic activity while preventing degradation.
3Object-generated harmful factors
If commercial lipase formulation is mixed with alkoxylated ester surfactant, then foam reduction occurs, but composition stability deteriorates
Solution Approach 1:
The patent modifies the surfactant parameters to have at least 8 ethoxylate groups and specific C16/18 alkyl chain content, which creates a stable composition that prevents the harmful foam reduction effect while maintaining composition stability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The combination improves stability and performance of lipases in laundry liquid formulations, addressing foam reduction challenges.
Implementation Method 1
Lipase are lipid esterase enzymes... Carboxylic ester hydrolase enzyme... Triacylglycerol lipases... The lipid esterase may be selected from lipase enzymes in E.C. class 3.1 or 3.2
Implementation Method 2
a laundry liquid composition comprising from 2 to 40% methyl ester ethoxylate surfactant... The alkoxylated ester surfactant has from 1 to 20 alkoxylate units
Data Source
AI summary
A laundry liquid composition comprising from 2 to 40% methyl ester ethoxylate surfactant and a lipase, wherein at least 10% weight of the methyl ester ethoxylate surfactant comprises C16/18 alkyl chains and a mol average of at least 8 ethoxylate groups.