Comb Polymer Detergency Boosters for Textile Pretreatment
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Solution Overview
Problem
Existing polymers used in textile pretreatment are ineffective in enhancing washing and bleaching performance for natural or synthetic fibers, leading to suboptimal surfactant usage and uneven dyeing results due to differing process conditions and types of dirt compared to household laundry.
Innovation Solution
The use of hydrophilic comb polymers obtained through radical polymerization of monoethylenically unsaturated monomers and polyethers, which enhance surfactant effectiveness by improving dirt removal and preventing re-absorption, thereby stabilizing the washing liquor and reducing surfactant amounts needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing polymers are used in textile pretreatment, then the process is simple and cost-effective, but the washing and bleaching performance is insufficient and surfactant usage is suboptimal
Solution Approach 1:
The patent employs comb polymers as composite materials that integrate multiple functional groups (carboxylic acid groups for metal ion binding, polyether side chains for hydrophilicity and surfactant interaction) into a single polymer structure. This composite approach enables the polymer to simultaneously enhance surfactant effectiveness, prevent dirt re-absorption, and improve wetting, thereby resolving the contradiction between washing performance and surfactant quantity.
Solution Approach 2:
The invention changes the chemical parameters of the washing system by introducing polymers with specific functional group concentrations and molecular weights. The comb polymers modify the physical-chemical parameters of the washing liquor, including surface tension and metal ion availability, which enhances surfactant performance and allows reduced surfactant dosages while maintaining optimal washing and bleaching results.
2Manufacturing precision
If existing polymers are used in textile pretreatment, then the formulation is simple, but the dyeing results are uneven due to suboptimal washing performance
Solution Approach 1:
The comb polymers function as composite materials that simultaneously address multiple pretreatment requirements: removing natural substances and production aids, preventing dirt re-absorption, and improving wetting and leveling. This multi-functional composite approach ensures uniform dyeing results without requiring complex multi-component formulations, thereby resolving the contradiction between dyeing uniformity and formulation complexity.
3Quantity of substance
If surfactant amounts are reduced to save costs, then cost savings are achieved, but washing and bleaching performance deteriorates
Solution Approach 1:
The comb polymers act as intermediaries that mediate between the washing system and the surfactants. They enhance surfactant effectiveness through hydrophobic interactions and prevent dirt re-absorption, allowing reduced surfactant dosages while maintaining optimal washing and bleaching performance. This intermediary function resolves the contradiction between surfactant quantity and washing performance.
4Reliability
If conventional detergents are used for textile pretreatment, then the formulation is straightforward, but the cleaning efficiency against textile-specific dirt is insufficient
Solution Approach 1:
The patent develops comb polymers as specialized composite materials with functional groups tailored for textile pretreatment requirements. These polymers effectively remove natural substances and production aids specific to textiles, and prevent dirt re-absorption during washing and bleaching. The single-component comb polymer formulation achieves superior cleaning efficiency without requiring complex multi-ingredient detergent formulations.
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 comb polymers significantly increase the cleaning performance of surfactants, achieving better dirt removal and hydrophilicity of textiles, allowing for reduced surfactant usage and cost savings while maintaining optimal washing and bleaching results.
Implementation Method 1
the lecture by Dr. Marie-Elise Chateau presented the detergency-enhancing effect of hydrophobic polymers made from acrylic acid and styrene
Implementation Method 2
Surprisingly, it was found that the effect of surfactants for textile pretreatment can be significantly increased with hydrophilic comb polymers
Implementation Method 3
The comb polymers used according to the invention are obtainable by A) a radical polymerization of monoethylenically unsaturated monomers of a group A1) of monoethylenically unsaturated acids and their salts and a group A2) of monoethylenically unsaturated polyethers
Data Source
AI summary
The invention relates to the use of comb polymers in washing and cleaning agents, in particular in textile finishing, and corresponding means. The comb polymers used according to the invention can be obtained by A) a radical polymerization of monoethylenic unsaturated monomers of a group A1) monoethylenic unsaturated acids and salts thereof and a group A2) monoethylenic unsaturated polyether and/or a group A3) monoethylenic unsaturated acids, which were previously esterified with unilaterally terminally hydrophobically blocked polyalkylene-oxides, or by B) a polymeric analogous conversion by esterification and/or amidation of a group B1) polycarboxylic acids and salts thereof with a group B2) monohydroxypolyethers and/or a group B3) monoamine compounds.