Nano finishes can provide various functional benefits to textiles. Nanoparticles like whiskers, nets, and wraps can be applied to fibers at the molecular level to alter their properties, unlike traditional resin finishes. For example, nano whiskers can make fabrics water and stain resistant while remaining breathable. Nano nets can give synthetic fibers properties of natural fibers like linen. Nano wraps can enhance fabric strength and durability after repeated washing. Specific nanoparticles like zinc oxide and titanium dioxide can provide UV protection and antibacterial properties. Overall, nano finishes allow adding value through functional improvements like moisture wicking and durability without compromising softness and comfort.

1. Nano Finishes in Textiles Ashish Kumar Key Customer Account Manager, Novozymes South Asia Pvt Ltd.

2. What is Nano Technology? Scientific and technological advances that rely on the properties of materials at a very, very small scale. Involves lots of complex concepts that are little difficult to understood. “ The design, characterization, production and application of structures, devices and systems by controlling shape and size of building blocks at the nanometer scale.” Nanoscale Region of greatest interest is 0.2-100 nanometres (nm). 1 m = 1000 million nm, or 1 nm = 10-9 m

3. Recent Applications of Nano Technology… High-Performance Ski Wax Breathable Waterproof Ski Jacket Wrinkle-Resistant, Stain-Repellent Garments Deep-Penetrating Skin Cream World’s First OLED Digital Camera Performance Sunglasses Nanocrystalline Sunscreen High-Tech Tennis Rackets and Balls

4. Present Scenario in Textile Finishing Innovation … Luke worm in spite of fast changing fashion cycle. Technical advancement & Art of finishing Technology quite old. Fabric & garment finishing basically by covering the texture of the fabric by Resins. Common problems like Spills,stains,wear & tear remains unsolved. Lack of innovation to texturise the fabric on the molecular level.

5. New Generation Technology in Finishing Innovation… Its nothing but Art of Nanotechnology in Textile finishing & innovation!

6. Textile Applications of Nano Technology... FUNCTIONAL water repellent PROTECTION UV absorption DURABILITY color fastness DURABILITY abrasion SAFETY fire retardancy FUNCTIONAL HYGIENE Anti-microbial FUNCTIONAL PROTECTION Controlled release of additives Nano Treated Textile FUNCTIONAL PROTECTION self-cleaning

7. Different structures of Nano Particles… Whiskers Net Wrap

8. Whiskers Spine Hooks Whiskers Fiber The whiskers get hooked on the fibers to alter the fabric property.

9. Nano Whiskers can make the fabric stain & water resistant… Nano whiskers can keep the fabric breathable too unlike resins finishes!

10. Value addition due to Nano Whiskers… Water and oil repellency Superior durability Breathable Fabric remains soft, natural Wrinkle resistance

11. Net Three Dimensional Molecular Nano Net covers the core fiber Completely.

12. Nano Net can inject linen property into a synthetic fiber… How the original fiber is altered! Absorbency @ linen in a polyester!

13. Value addition due to Nano Net… Alters the property of syntheticfibers like Polyester to give a feel of cotton & linen. Wicks body moisture fast Dries quickly & gives the cooling effect.

14. Wrap Nano sheet wraps the fiber completely to cover it & alter its property.

15. Nano wraps can enhance the fabric robustness… Normal fabric trouser with out nano wrap on the fibers after 50 washes! Trouser made up fabric with nano wrap fibers after 50 washes!

16. Value addition due to Nano Wrap… Strength and Durability. Improvement in colorfastness. Crease retention. Static resistance.

17. Some Magic Nano Particles… Clay Nano Particles ZnO Nano Particles TiO 2 Nano Particles MgO Nano Particles Silver Nano Particles

18. The Functional Aspects… Clay Nano Particles: Composed of various hydrous aluminosilicates so possesses various properties like chemical,heat,electrical resistance hence imparts flame retardant anti corrosive finishes to the fabrics. ZnO Nano Particles: Can impart UV Shielding in fabrics & can reduce static electricity of Nylon fibers.

19. The Functional Aspects Cont… TiO 2 & MgO Nano Particles: Photo catalytic activity of TiO2 & MgO particles can break harmful & toxic chemicals and Biological agents hence imparts self-sterilizing function to the fibers. Silver Nano Particles: Anti microbial & anti mould property of silver particles is utilised to impart anti odour & ultra fresh finishes to the undergarments & socks.

20. Thanks a Lot! With a hope for great success of Nano Technology in Textiles finishing…