Liquid Laundry Detergent with Cleaning Booster Polymer
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Solution Overview
Problem
There is a need for liquid laundry detergent formulations that maintain primary cleaning performance while reducing surfactant loading and improving anti-redeposition performance, particularly for dust sebum and ground clay, while being environmentally sensitive and cost-effective.
Innovation Solution
A liquid laundry detergent formulation comprising a liquid carrier, a cleaning surfactant, and a cleaning booster polymer with specific structural units of monoethylenically unsaturated carboxylic acid monomers and ethylenically unsaturated monomers, which enhances cleaning performance and anti-redeposition capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If surfactant loading is reduced to lower costs and improve environmental sensitivity, then cleaning performance deteriorates
Solution Approach 1:
The patent combines surfactants with specifically designed polymers containing carboxylic acid groups and hydrophobic moieties to create a composite cleaning system. This composite approach allows reduced surfactant loading while maintaining cleaning performance, as the polymer-surfactant combination provides synergistic cleaning action.
Solution Approach 2:
The patent modifies the chemical parameters of the cleaning system by incorporating polymers with specific functional groups (carboxylic acid, hydroxyl, amine) and hydrophobic characteristics. These parameter changes enable the system to achieve effective cleaning at lower surfactant concentrations.
2Quantity of substance
If surfactant loading is reduced, then anti-redeposition performance deteriorates
Solution Approach 1:
The polymer-surfactant composite system provides both cleaning and anti-redeposition functions. The polymer components with carboxylic acid groups and hydrophobic moieties work synergistically with surfactants to prevent soil redeposition, maintaining anti-redeposition performance even at reduced surfactant levels.
3Quantity of substance
If polymer is added to reduce surfactant dose, then formulation complexity increases
Solution Approach 1:
The patent specifies particular polymer parameters (carboxylic acid content, hydrophobicity, molecular weight) to optimize performance while managing formulation complexity. By controlling these parameters within defined ranges, the formulation achieves reduced surfactant dosing without excessive complexity.
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 formulation improves primary cleaning performance for dust sebum and maintains good anti-redeposition performance for ground clay, achieving effective cleaning with reduced surfactant usage.
Implementation Method 1
a cleaning booster polymer, wherein the cleaning booster polymer, comprises: (a) 50 to 95 wt %, based on dry weight of the cleaning booster polymer, of structural units of a monoethylenically unsaturated carboxylic acid monomer
Data Source
AI summary
A liquid laundry detergent formulation is provided, comprising: a liquid carrier; a cleaning surfactant; and a cleaning booster polymer, wherein the cleaning booster polymer has structural units of a monoethylenically unsaturated carboxylic acid monomer; structural units of an ethylenically unsaturated monomer of formula (I)and, optionally, structural units of an ethylenically unsaturated monomer of formula (II)