Liquid Dishwashing Composition Low-Temperature Sudsing
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Solution Overview
Problem
There is a need for a liquid hand dishwashing detergent composition that provides effective grease removal and improved sudsing performance at temperatures below 30°C, as users are skeptical about the cleaning efficacy at lower temperatures and seek a more sustainable and cost-effective washing method.
Innovation Solution
A liquid hand dishwashing composition comprising a surfactant system with at least 40% anionic surfactant, primarily alkyl sulfated anionic surfactant with less than 0.1 average degree of alkoxylation, and a quaternised acrylic copolymer, which enhances sudsing and cleaning performance at temperatures of 30°C or less.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If water temperature is reduced to below 30°C for sustainable and cost-effective dishwashing, then energy consumption and cost are reduced, but cleaning efficacy and sudsing performance deteriorate
Solution Approach 1:
The invention changes the chemical parameters of the detergent formulation by using unalkoxylated or low-alkoxylated alkyl sulfate anionic surfactants instead of traditionally used ethoxylated variants. This parameter change in surfactant structure enables effective sudsing and grease removal at lower temperatures (below 30°C) without requiring energy-intensive heating, thus resolving the contradiction between energy savings and cleaning efficacy
Solution Approach 2:
The invention uses a composite surfactant system combining unalkoxylated/low-alkoxylated alkyl sulfate anionic surfactants with specific cationic and nonionic surfactants. This composite formulation creates synergistic effects that maintain superior sudsing and cleaning performance at low temperatures, allowing energy reduction while preserving cleaning reliability
2Reliability
If unalkoxylated or low-alkoxylated alkyl sulfate anionic surfactants are used instead of ethoxylated variants, then sudsing performance at low temperature is improved, but compatibility with traditional formulations decreases
Solution Approach 1:
The invention systematically adjusts multiple formulation parameters including surfactant concentration ranges, pH levels (6.0-9.0), and the presence of specific auxiliary ingredients to optimize performance of unalkoxylated/low-alkoxylated alkyl sulfates. These parameter changes enable the surfactant to function effectively at low temperatures while maintaining compatibility with existing manufacturing and application processes
Solution Approach 2:
The invention introduces specific intermediary components including cationic surfactants and nonionic surfactants that mediate between the unalkoxylated/low-alkoxylated alkyl sulfate anionic surfactant and the overall formulation system. These intermediaries enhance compatibility and stabilize the surfactant system, enabling effective sudsing performance while maintaining formulation versatility
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 composition achieves improved sudsing and grease removal at lower temperatures, reassuring users of effective cleaning while promoting a more sustainable and cost-effective dishwashing process.
Implementation Method 1
a liquid hand dishwashing cleaning composition comprising: from 6% to 50% by weight of the total composition of a surfactant system, and a quaternised acrylic copolymer
Implementation Method 2
the anionic surfactant comprises at least 50% by weight of the anionic surfactant of alkyl sulfated anionic surfactant, wherein the alkyl sulfated anionic surfactant has an average degree of alkoxylation of less than 0.1
Data Source
AI summary
The need for a liquid hand dishwashing composition and method of washing dishes at temperatures of less than 30°C, at which the liquid detergent composition provides improved sudsing in the presence of greasy soils, is met by formulating the liquid hand dishwashing detergent composition to comprise a quaternized acrylic copolymer and a surfactant system, wherein the surfactant system comprises an anionic surfactant system comprising alkyl sulfated anionic surfactant, wherein the alkyl sulfated anionic surfactant has an average degree of alkoxylation of less than 0.1.