This invention discloses a non-toxic, wash-resistant antimicrobial nanocomposite comprising chitosan and calcium silicate nanoparticles. The developed NanoFabric retains its antibacterial efficacy after repeated washes and is suitable for a wide range of textile applications.
Figure (1) FEG-SEM image of plain fabric; (2) FEG-SEM image of Chitosan and bioactive calcium silicate glass treated fabric
Current antimicrobial textiles rely on metallic agents which are toxic, non-biodegradable, and lose functionality after limited washes. There is a need for a durable, eco-friendly antimicrobial textile.
- Biocompatible Composition: The antimicrobial formulation is made using a 1:1 ratio of chitosan and calcium silicate nanoparticles, ensuring it is safe for human use and contact.
- No Heavy Metals: The technology completely eliminates the use of heavy metals such as silver or other metallic nanoparticles, thereby avoiding associated toxicity and environmental hazards.
- Wash Durability: The treated fabric retains up to 99.99% antibacterial efficacy against Staphylococcus aureus and Klebsiella pneumoniae even after 20 wash cycles.
- Broad Fabric Compatibility: The antimicrobial coating is compatible with a wide range of fabrics including cotton, wool, nylon, polyester, and their blends, making it highly versatile.
- Flexible Processing: The application process involves the use of citric acid as a cross-linking agent and Tween 80 as a surfactant, applied through a simple and scalable pad-dry-cure method.
NanoFabric prototype was developed by coating cotton fabric using the formulated antimicrobial solution, followed by room and oven drying. SEM and FTIR analyses confirmed successful coating. Antibacterial testing (AATCC TM-147, AATCC 100) demonstrated high efficacy.
The technology has been demonstrated through hypothesis testing in both lab settings.
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This NanoFabric can significantly reduce the spread of infections in medical and domestic environments, providing safer alternatives to conventional antimicrobial textiles, especially beneficial in healthcare, hygiene, and everyday wear.
- Medical Textiles: Used in hospital gowns, face masks, and bandages to prevent the spread of infections and maintain sterile conditions
- Hygiene and Sanitary Products: Ideal for products like diapers, sanitary pads, and wipes, offering enhanced protection against microbial contamination
- Apparel: Suitable for socks, undergarments, and uniforms where long-lasting antimicrobial protection is essential for comfort and hygiene
- Home Textiles: Applied to items such as curtains, bedsheets, and towels to reduce odor, inhibit bacterial growth, and improve fabric hygiene
- Automotive Interiors and Industrial Filters: Enhances the cleanliness and longevity of car seats, mats, and filters by preventing microbial buildup
Geography of IP
Type of IP
202021014866
417792