Liquid Cleaning Composition Fatty Acid Viscosity Control
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Solution Overview
Problem
Existing liquid cleaning compositions face challenges in achieving high viscosity while maintaining foam stability and preventing stringiness, which is adversely affected by high salt levels.
Innovation Solution
An aqueous composition comprising a salt of C10-16 alcohol ethoxylate sulfate as the primary surfactant, betaine surfactant, and alkyl polyglucoside, with at least 15 weight % of C12-18 fatty acid, creating a crystalline visual appearance that enhances viscosity and foam stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If high levels of salt are added to increase viscosity, then the viscosity increases, but the cleaning product becomes stringy and foam properties are adversely affected
Solution Approach 1:
The patent extracts and removes salt from the formulation entirely, replacing it with fatty acids as the viscosity-modifying agent. This elimination of the harmful substance (salt) while retaining the desired function (viscosity enhancement) directly resolves the contradiction between achieving high viscosity and avoiding stringiness/poor foam properties
Solution Approach 2:
The patent changes the chemical parameter from salt-based viscosity modification to fatty acid-based viscosity modification. By substituting the chemical mechanism (using fatty acids instead of salt), the system achieves the same functional outcome (high viscosity) without the harmful side effects (stringiness and degraded foam properties)
2Force
If salt is added to modify surfactant packing, then higher viscosity is achieved, but foam stability deteriorates
Solution Approach 1:
The patent removes salt from the system and replaces it with fatty acids, which modify surfactant packing through a different mechanism that does not compromise foam stability. This extraction of the harmful agent while maintaining the functional benefit resolves the contradiction between viscosity enhancement and foam stability
Solution Approach 2:
Fatty acids serve as an intermediary substance that mediates between the conflicting requirements of high viscosity and stable foam. They provide a bridging mechanism for surfactant interaction that achieves dense packing (high viscosity) while preserving the surfactant's ability to form stable foam structures
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 increased viscosity and longer-lasting foam stability, preventing stringiness and maintaining effective cleaning performance.
Implementation Method 1
The composition has a crystalline visual appearance
Implementation Method 2
the formation of dense wormlike micelles (tighter packing which results in high viscosities)
Data Source
AI summary
An aqueous composition includes: (a) surfactants comprising a salt of a C10-16 alcohol ethoxylate sulfate, a betaine surfactant, and an alkyl polyglucoside, wherein the salt of the C10-16 alcohol ethoxylate sulfate is present in a quantity that is greater than any other surfactant; (b) at least 15 weight % of the composition of a C12-18 fatty acid. A cleansing method includes applying the composition to skin or hair and washing, and optionally rinsing with water.