Random Copolymers for Low-Temperature Soil Release
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Solution Overview
Problem
Current laundry detergents often struggle to effectively remove stubborn soil and dirt from textiles due to suboptimal formulations and low wash temperatures, as these soils are strongly attached or absorbed within the fibers, making them difficult to release.
Innovation Solution
Development of random copolymers through polymerization of specific monomers, which are incorporated into laundry detergents to act as soil release agents, enhancing the ability to detach soil from textile surfaces during washing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional detergent formulations are used at low wash temperatures, then energy consumption is reduced, but soil release performance deteriorates
Solution Approach 1:
The patent changes the chemical composition parameters of the detergent by incorporating random copolymers with specific monomer ratios (1-70 mole % of monomer I and 30-99 mole % of monomer II) to enhance soil release performance at low wash temperatures without increasing energy consumption
Solution Approach 2:
The patent uses composite detergent formulations combining random copolymers with conventional detergent ingredients to achieve synergistic effects that improve soil release at low temperatures while maintaining energy efficiency
2Reliability
If stronger detergent formulations are used to remove stubborn soil, then cleaning performance is improved, but formulation complexity increases
Solution Approach 1:
The patent optimizes the molecular weight (10,000-1,000,000 g/mol) and monomer composition parameters of the random copolymer to achieve effective soil release with a relatively simple detergent formulation, avoiding the need for complex ingredient combinations
3Reliability
If soil release agents are deposited on fiber surface, then subsequent soil release is improved, but fiber surface properties are modified
Solution Approach 1:
The patent controls the concentration and molecular characteristics of the random copolymer to ensure temporary deposition on fiber surfaces that facilitates soil release while minimizing permanent modification of fiber surface properties
Solution Approach 2:
The random copolymer acts as a temporary soil release agent that is deposited on the fiber surface during washing and then rinsed away, providing the necessary soil release function without leaving persistent modifications to the fiber surface
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 use of these random copolymers significantly improves soil release from textiles, demonstrated by increased brightness and cleaning performance in both liquid and powder detergent formulations, even at low wash temperatures.
Implementation Method 1
these are deposited and accumulated on the fiber surface during laundry washing, thereby modifying the surface properties of the fibers
Implementation Method 2
random copolymers obtainable by polymerization of at least one monomer according to formula (I)... and at least one monomer according to formula (II)
Data Source
AI summary
The present invention relates to random copolymers obtainable by polymerization, the use of said random copolymers as soil release agents in laundry processes. Further aspects of the invention are a method for easier releasing soil from textiles in laundry processes and detergents containing said random copolymers.