Polymer-Silver Composition for Uniform Antimicrobial Fabric Treatment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing polymer delivery systems for silver ions in textile applications result in uneven distribution during the padding process, leading to inconsistent antimicrobial performance and wash durability.
Innovation Solution
A polymer bath composition comprising 60-90 wt% polymerized units of vinylimidazoles or vinylpyridines and 10-40 wt% ethylenically unsaturated compounds, combined with silver metal or ions, applied using a controlled padding process to ensure even distribution across the fabric.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a polymer delivery system is used to release silver ions during the padding process, then antimicrobial performance is achieved, but uneven distribution of silver ions occurs across the fabric surface
Solution Approach 1:
The patent changes the chemical parameters of the polymer system by using a copolymer with specific functional groups (carboxylic acid, amine, hydroxyl) in controlled ratios. This modification of polymer parameters enables balanced absorption kinetics that match the padding process speed, resolving the distribution uniformity issue while maintaining antimicrobial efficacy
Solution Approach 2:
The invention employs a composite polymer system with multiple functional groups (carboxylic acid, amine, hydroxyl) working together. This composite approach creates a delivery system that simultaneously achieves uniform silver ion release and effective antimicrobial performance, overcoming the limitations of single-functional polymers
2Reliability
If the polymer-metal absorption rate is increased to improve silver ion delivery, then antimicrobial efficacy is enhanced, but uneven distribution worsens due to depletion tailing
Solution Approach 1:
The patent optimizes the absorption rate parameter by adjusting the polymer's functional group composition and ratios. This parameter tuning creates an optimal absorption kinetics profile that delivers high silver ion release rates while maintaining uniform distribution across the entire fabric surface, preventing both depletion tailing and aggregation
3Productivity
If conventional padding process is used for fabric treatment, then production efficiency is maintained, but uneven silver ion distribution results
Solution Approach 1:
The invention modifies the chemical parameters of the polymer delivery system to be compatible with conventional padding process parameters. This allows the existing high-speed padding equipment to operate at full efficiency while the modified polymer ensures uniform silver ion absorption and distribution, resolving the contradiction between productivity and precision
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 achieves uniform silver ion distribution, enhancing antimicrobial efficacy and wash durability by maintaining average error below 0.5, ensuring consistent performance across the fabric width and length.
Implementation Method 1
fabric is pulled through a trough containing the metal-polymer solution which is then absorbed onto the surface of the textile
Data Source
AI summary
The present invention relates to a composition and method for preparing a color stable and wash durable treated fabric with more even distribution of silver across the length of the treated textile.