Crosslinked Cellulose Ether Detergent Additive
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Solution Overview
Problem
Existing aqueous light duty liquid detergents face challenges in maintaining suds mileage and aesthetic characteristics, particularly hand feel, while effectively cleaning greasy food soils.
Innovation Solution
The formulation includes water, a cleaning surfactant, and a suds enhancing additive comprising a crosslinked cellulose ether with 0.1 to 0.6 wt% polyether groups, which enhances suds mileage and aesthetic properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If mild surfactants are used to reduce skin irritation, then skin compatibility is improved, but suds mileage deteriorates
Solution Approach 1:
The patent introduces a crosslinked cellulose ether as an intermediary substance that mediates between the mild surfactant and the suds generation requirement. This additive contains 0.1 to 0.6 wt% polyether groups that specifically enhance suds mileage without requiring stronger, more irritating surfactants. The cellulose ether acts as a bridge that allows mild surfactants to achieve adequate foaming performance through the synergistic effect of the polyether-containing additive.
Solution Approach 2:
The patent changes the chemical parameter of the additive by incorporating polyether groups (0.1 to 0.6 wt%) into the crosslinked cellulose ether structure. This parameter change enables the additive to specifically enhance suds generation and stability. By adjusting the polyether content within this range, the formulation optimizes the balance between mildness and foaming performance, allowing mild surfactants to achieve sufficient suds mileage.
2Reliability
If effective cleaning surfactants are used to remove greasy food soils, then cleaning performance is improved, but skin irritation increases
Solution Approach 1:
The crosslinked cellulose ether with polyether groups serves as a mediator that enhances the cleaning system's effectiveness without requiring increased surfactant strength. It works synergistically with mild surfactants to maintain reliable cleaning performance on greasy food soils, eliminating the need to compromise skin compatibility for cleaning efficacy.
Solution Approach 2:
The patent creates a composite detergent formulation combining mild surfactants with crosslinked cellulose ether containing polyether groups. This composite approach allows the system to achieve both effective cleaning of greasy soils and skin compatibility, as the two components work together synergistically rather than requiring a single surfactant to perform all functions.
3Reliability
If conventional detergents are used for cleaning, then cleaning effectiveness is achieved, but aesthetic characteristics (hand feel) deteriorate
Solution Approach 1:
The patent changes the rheological parameters of the detergent formulation by incorporating crosslinked cellulose ether with polyether groups. This additive modifies the fluid's viscosity and flow characteristics, improving hand feel and aesthetic appearance. The polyether content (0.1 to 0.6 wt%) is specifically tuned to optimize these aesthetic properties while maintaining cleaning effectiveness.
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 solution provides effective cleaning performance with improved suds mileage and enhanced aesthetic characteristics, such as rheology, suspension, and hand feel, even in the presence of greasy food soils.
Implementation Method 1
a cleaning surfactant; and a suds enhancing additive; wherein the suds enhancing additive comprises a crosslinked cellulose ether containing 0.1 to 0.6 wt%, based on weight of the crosslinked cellulose ether, of polyether groups
Data Source
AI summary
An aqueous light duty liquid detergent formulation, is provided including water; a cleaning surfactant; and a suds enhancing additive; wherein the suds enhancing additive comprises a crosslinked cellulose ether containing 0.1 to 0.6 wt%, based on weight of the crosslinked cellulose ether, of polyether groups.