Mesoporous Silica Textile Coating for Wash-Resistant Deodorant Fabrics
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Solution Overview
Problem
Existing textile deodorant and antibiotic technologies face limitations, such as color change in dark textiles, high costs, and poor wash resistance, especially when using active carbon or zeolite methods, and require binders, which are not suitable for light or brightly colored fabrics.
Innovation Solution
A processing method involving an aqueous solution of surfactant containing nanoparticles and a silicon source to create mesoporous silica powder, which is then applied to textiles, providing a long-term antibiotic and deodorant textile with mesoporous structure without binders, suitable for all colors and offering excellent wash resistance and hand-feeling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If active carbon is used to process textiles for deodorant properties, then good deodorant properties are achieved, but the colors of the textiles become darker
Solution Approach 1:
The patent uses mesoporous silica as the deodorant material instead of active carbon. The mesoporous structure provides high surface area for odor absorption while being transparent and colorless, thus maintaining textile brightness. The controlled pore size (2-50 nm) enables effective deodorant function without the darkening effect of carbon-based materials.
Solution Approach 2:
The patent creates a composite structure by combining mesoporous silica with binder-free nanoparticle coatings. This composite approach allows the silica to provide deodorant function while the nanoparticle layer enhances wash fastness and maintains the original textile color, avoiding the darkening problem of active carbon.
2Reliability
If zeolite is used for deodorant properties, then deodorant function is achieved, but binders are required which increase cost and reduce wash resistance
Solution Approach 1:
The patent removes the binder component from the zeolite processing system. By using mesoporous silica with optimized surface properties and nanoparticle coatings, the invention achieves binder-free attachment to textiles, eliminating the cost and wash resistance problems associated with traditional binder-based zeolite processing.
Solution Approach 2:
The patent changes the chemical and physical parameters of the deodorant material by using mesoporous silica with specific pore size (2-50 nm) and surface area (500-1000 m²/g) instead of conventional zeolite. These parameter changes enable direct attachment to textiles without binders, improving both cost-effectiveness and wash resistance.
3Reliability
If traditional antibiotic agents (organic quaternary ammonium salt or antiseptic containing silver) are added to textiles, then antibiotic properties are achieved, but the processing complexity increases
Solution Approach 1:
The patent merges the deodorant function (mesoporous silica) and antibiotic function (silver-containing nanoparticles) into a single integrated processing step. The nanoparticles are incorporated during the same dip-and-dry process used for silica application, eliminating separate treatment steps and reducing processing complexity while maintaining effective antibiotic properties.
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 method results in cost-effective, environmentally friendly, long-term antibiotic and deodorant textiles with preserved original colors, enhanced deodorant and antibiotic properties, and improved wash fastness, suitable for mass production.
Implementation Method 1
mesoporous silica... The pore diameter of the mesoporous silica is about 1 ̃50 nm... great antibiotic and deodorant properties
Implementation Method 2
an aqueous solution of a surfactant containing nanoparticles is prepared. An aqueous solution of a silicon source is also prepared... the aqueous solution of the surfactant and the aqueous solution of the silicon source are mixed to form a mixture solution. The mixture solution is stirred until silica powder form therein
Data Source
AI summary
A long-term antibiotic and deodorant textile with mesoporous structure and processing method thereof are provided. At first, a textile is dipped into an aqueous solution of a surfactant containing nanoparticles. An aqueous solution of a silicon source is prepared and its pH value is adjusted to about 5˜9. Then, the aqueous solution of the surfactant and the aqueous solution of the silicon source are mixed to form a mixture solution. The mixture solution is stirred until silica powder form therein. The textile is taken out and dipped into water and organic solvent separately several times. Finally, the textile is dried to obtain the long-term antibiotic and deodorant textile with mesoporous structure.