Wash Composition Using Biodegradable Thickeners for Heat Stability
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Solution Overview
Problem
Existing wash compositions fail to maintain stable viscosity and lather quality at elevated temperatures, often containing synthetic thickeners and sulfates, and lack biodegradability, which is undesirable for environmental friendliness and consumer safety.
Innovation Solution
A wash composition comprising biodegradable thickener, anionic surfactant, and unsaturated zwitterionic surfactant, formulated without soap and sulfates, providing excellent lather and viscosity characteristics while maintaining stability at elevated temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If synthetic thickeners and sulfates are used to maintain viscosity and lather, then viscosity stability and lather quality are improved, but environmental friendliness and consumer safety deteriorate
Solution Approach 1:
The patent changes the chemical composition parameters by replacing synthetic thickeners with biodegradable alternatives (starch, cellulose, or gum) and formulating with specific surfactant combinations (anionic surfactant with unsaturated zwitterionic surfactant). This parameter substitution maintains viscosity stability while improving environmental compatibility and consumer safety.
Solution Approach 2:
The invention uses composite material systems combining biodegradable polymers (starch, cellulose, or gum) with specific surfactant combinations. This composite approach creates a synergistic effect where the biodegradable thickener provides viscosity stability and the unsaturated zwitterionic surfactant enhances lather quality, replacing harmful synthetic components with environmentally friendly alternatives.
2Object-affected harmful factors
If biodegradable thickeners are used instead of synthetic thickeners, then environmental friendliness is improved, but viscosity stability at elevated temperatures deteriorates
Solution Approach 1:
The patent modifies the chemical parameters of the biodegradable thickener system by selecting specific types (starch, cellulose, or gum) and optimizing their concentration ranges (0.1-5% starch, 0.05-2% cellulose, or 0.05-2% gum). These parameter adjustments enable biodegradable thickeners to maintain viscosity stability at elevated temperatures while preserving environmental benefits.
Solution Approach 2:
The unsaturated zwitterionic surfactant acts as an intermediary that enhances the performance of biodegradable thickeners. By combining the thickener with specific unsaturated zwitterionic surfactants (containing C18:1, C18:2, C8, and C10 chains), the system achieves temperature stability that biodegradable thickeners alone cannot provide, while maintaining environmental friendliness.
3Object-affected harmful factors
If soap and sulfates are eliminated to improve safety, then consumer safety is improved, but lather quality and viscosity characteristics deteriorate
Solution Approach 1:
The patent changes the surfactant composition parameters by eliminating soap and sulfates and replacing them with specific anionic surfactants (sodium lauroyl isethionate, sodium methyl lauroyl taurate) combined with unsaturated zwitterionic surfactants. This parameter substitution maintains consumer safety while achieving excellent lather quality through the synergistic interaction of the new surfactant system.
Solution Approach 2:
The invention creates a composite surfactant system combining anionic surfactants with unsaturated zwitterionic surfactants in specific ratios. This composite material approach replaces harmful soap and sulfate components while maintaining or enhancing lather quality through the synergistic effects of the alternative surfactant combination, along with biodegradable thickeners for viscosity control.
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 stable viscosity and lather quality without syneresis, even at elevated temperatures, while being environmentally friendly and safe for frequent use.
Implementation Method 1
thickener having starch, and at least one of cellulose and gum
Implementation Method 2
unsaturated zwitterionic surfactant wherein the unsaturated zwitterionic surfactant comprises a hydrophobic tail comprising 2.5 to 20%, and preferably, 3.5 to 15%, and most preferably, from 4 to 14% (or 4.5 to 13%) by weight C18:1
Implementation Method 3
at least one anionic surfactant
Data Source
AI summary
The invention is directed to a stable composition wash composition. The wash composition comprises a mixture of biodegradable thickeners and unsaturated zwitterionic surfactants. The wash composition has a stable viscosity and surprisingly, is free of syneresis, discoloration and malodor, even after being stored at elevated temperatures.