Selenium Containing Antimicrobial Compound as a Reacitve Dye and Cross-Linking Treatment for Textile Applications
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Solution Overview
Problem
Existing antimicrobial textiles, particularly those using silver, face issues with environmental contamination and high costs, as well as the need for materials that effectively prevent microbial growth without releasing toxic substances during laundering.
Innovation Solution
The use of organo-selenium compounds as reactive dyes or cross-linking agents to treat textiles, which attach to the fabric through covalent bonds, providing antimicrobial properties without leaching selenium into the environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If silver is used as an antimicrobial agent in textiles, then antimicrobial effectiveness is improved, but environmental contamination and human exposure increase due to leaching during laundering
Solution Approach 1:
The patent changes the chemical element parameter from silver to selenium, which provides similar antimicrobial effectiveness but without the leaching problem. Selenium compounds are used at much lower concentrations (ppm level vs. higher silver concentrations), and the specific chemical forms used maintain stability during laundering, preventing environmental contamination while maintaining reliability.
Solution Approach 2:
The patent employs inexpensive selenium compounds that can be applied in small amounts to provide durable antimicrobial protection. The treatment uses affordable chemical precursors that convert to stable selenium-containing compounds on the fabric, providing long-lasting protection without the high costs associated with silver materials and processing.
2Reliability
If silver is used as an antimicrobial agent in textiles, then antimicrobial effectiveness is improved, but material cost increases
Solution Approach 1:
The patent substitutes expensive silver with inexpensive selenium compounds. The treatment uses affordable chemical precursors such as selenium dioxide or organoselenium compounds that can be applied in small quantities to provide effective antimicrobial protection, dramatically reducing material costs while maintaining or improving effectiveness.
Solution Approach 2:
The patent changes the material parameter from precious metal (silver) to abundant element (selenium), which is orders of magnitude less expensive. The chemical form and concentration parameters are optimized to achieve effective antimicrobial activity at very low levels, further reducing the quantity of material needed and overall cost.
3Object-generated harmful factors
If selenium compounds are used as reactive dyes or cross-linking agents, then antimicrobial properties are provided without leaching, but the treatment process complexity increases
Solution Approach 1:
The patent employs selenium compounds that serve multiple functions simultaneously: they act as reactive dyes for coloration, cross-linking agents for durability, and antimicrobial agents for protection. This multi-functionality consolidates what would otherwise require separate treatment steps into a single application process, reducing overall process complexity while achieving multiple objectives including preventing leaching.
Solution Approach 2:
The patent merges the functions of dyeing, cross-linking, and antimicrobial treatment into a single integrated process using selenium-containing compounds. The selenium compound is applied in one treatment step that simultaneously imparts color, creates durable bonds with the fabric, and provides antimicrobial protection, eliminating the need for separate processing steps.
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 organo-selenium treated textiles demonstrate effective antimicrobial activity against both gram-positive and gram-negative bacteria, with high kill rates and resistance to washing, while avoiding environmental contamination and reducing material costs.
Implementation Method 1
which attach to the fabric through covalent bonds
Implementation Method 2
The organo-selenium treated textiles demonstrate effective antimicrobial activity against both gram-positive and gram-negative bacteria, with high kill rates
Data Source
AI summary
The present invention includes compositions and method of treating a textile with an antimicrobial agent, the method comprising contacting the textile with an antimicrobial agent that comprises a reactive dye or crosslinking agent comprising an organo-selenium compound in a treatment solution.