Polymer Detergent Composition for Fatty Soil Removal and Anti-Greying
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Laundry detergents face challenges in effectively removing fatty soils and reducing greying of fabrics due to soil redeposition, with existing anti-greying agents showing insufficient performance and stability issues, especially in liquid formulations.
Innovation Solution
A detergent composition comprising a polymer with a core bearing specific moieties and polyalkylene oxide chains, combined with enzymes like lipases and proteases, to enhance soil removal and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing anti-greying agents are used, then soil redeposition is reduced to some extent, but the performance is insufficient and shelf life is reduced due to quick degradation
Solution Approach 1:
The patent modifies the chemical structure of polysaccharide anti-greying agents by introducing specific functional groups and cross-linking structures. This structural parameter change enhances both the anti-greying performance and the stability of the agent, preventing quick degradation while maintaining effectiveness in reducing soil redeposition.
Solution Approach 2:
The invention creates a composite polymer structure combining modified polysaccharide backbones with grafted functional chains. This composite approach integrates the beneficial properties of different molecular components, achieving both superior anti-greying performance and enhanced shelf life through improved chemical stability.
2Productivity
If lipase is used to support fat removal, then fatty soil removal is improved, but compatibility with builders in liquid laundry detergents is poor
Solution Approach 1:
The patent introduces a compatibilizing agent or modified enzyme formulation that acts as an intermediary between lipase and detergent builders. This intermediary component facilitates compatible interaction, allowing lipase to maintain its fat removal capability while coexisting stably with various detergent builders in liquid formulations.
Solution Approach 2:
The invention modifies the operational parameters of lipase, such as optimizing pH range, temperature stability, or molecular structure, to enhance compatibility with detergent builders. By adjusting these parameters, the enzyme maintains high fatty soil removal efficiency while becoming adaptable to the chemical environment of liquid laundry detergents.
3Ease of operation
If liquid detergent formulations are used, then convenience is improved, but storage stability is poor especially for enzymes
Solution Approach 1:
The patent extracts enzymes from the bulk liquid detergent formulation and incorporates them into separate stable compartments such as encapsulated units or distinct phases. This extraction protects enzymes from degradation in the liquid environment while maintaining the convenience of liquid formulation for end-use application.
Solution Approach 2:
The invention employs nested structures where enzymes are encapsulated within protective matrices or inner compartments that are themselves contained within the liquid detergent system. This nested architecture provides multiple layers of protection, enhancing enzyme storage stability while preserving the liquid formulation's ease of use.
Data Source
AI summary
The present invention is directed towards a composition comprising (A) at least one polymer comprising (a) a core that bears one to 50 moieties of the general formula (I), and groups of the general formula (II) wherein the asterisk stands for another group according to general formula (I), linked though X2, or for C1-C4-alkyl, or for a group according to formula (II), or for a polyalkylene oxide chain (b), wherein X1 are same or different and selected from C1-C2-alkyl and hydrogen, wherein X2 are same of different and selected from C2-C6-alkylene, straight-chain or branched, non-substituted or substituted with one or more hydroxyl groups, esters of carboxylic acids, or ether groups, (b) polyalkylene oxide chains.