Bahir Dar University
EiTEX
Nano-Technology application in Textiles
Prepared by: Bademaw Abate
Introduction
What is Nano Technology?
Scientific and technological advances that rely on the properties of
materials at a ...
Cont…
• Nanotechnology is the study and design of systems
at the nanometre scale [0.000000001
(10-9) metre] the scale of a...
Cont..
• Nanoscale materials can be rationally designed to
exhibit novel and significantly improved physical,
chemical and...
Nano particle
Properties
• Dramatic change in properties of a substance when particle size
reduced to nanometer range
• Pr...
Cont..
• Small amount of nano species can interfere
with matrix polymer and improve the
performance of the resultant syste...
Different structures of Nano Particles…
• Whiskers
 Whiskers are hair-like tactile sensors used by certain mammals and
in...
Whiskers
Spine
Hooks
Whiskers
Fiber
The whiskers get hooked on the fibers to alter the fabric
property.
Nano Whiskers can make the fabric stain &
water resistant…
Nano whiskers can keep the fabric
breathable too unlike resins
...
Value addition due to Nano Whiskers…
• Water and oil repellency
• Superior durability
• Breathable
• Fabric remains soft, ...
Net
Three Dimensional Molecular Nano Net covers the core fiber
Completely.
Nano Net can inject linen property into
a synthetic fiber…
How the original fiber is altered!
Absorbency @ linen in a
poly...
Value addition due to Nano Net…
• Alters the property of syntheticfibers like Polyester to give
a feel of cotton & linen.
...
Wrap
Nano sheet wraps the fiber completely to cover it & alter its
property.
Nano wraps can enhance the fabric
robustness…
Normal fabric trouser with out nano
wrap on the fibers after 50 washes!
Trou...
Value addition due to Nano Wrap
Strength and Durability
Improverment in colorfastness
Crease Retention
Static Resistance
Some Magic Nano Particles…
• Clay Nano Particles
• ZnO Nano Particles
• TiO2 Nano Particles
• MgO Nano Particles
• Silver ...
The Functional Aspects…
• Clay Nano Particles:
Composed of various hydrous aluminosilicates so possesses various
propertie...
The Functional Aspects Cont…
• TiO2 & MgO Nano Particles:
Photo catalytic activity of TiO2 & MgO particles can break
harmf...
Textile Applications of Nano Technology...
FUNCTIONAL
water repellent
PROTECTION
UV absorption
DURABILITY
color fastness
D...
Teflon® Stain Protection
• durable fluorochemical finish based on nano
emulsion
• It forms an invisible shield around each...
Application
• The fabric is padded and dried.
• During drying water evaporates.
• During subsequent curing operation the p...
Fixation mechanism
Antibacterial and Deodorant finishes
based on nanotechnology
'Ag fresh'
• Typical example: when human body perspire the cl...
'Ag fresh'
• The 'Ag fresh' antibacterial, deodorant finish has
been developed for use mainly in
• garments worn close to ...
Ag nanoparticle penetration in fibre
Applications of Nanotechnology In
Military Science:
• Military uniforms that change color to match
the environment
• Light...
Applications of Nanotechnology
• Stain/odor-free clothing & carpet
• Bug-repellant clothing
• Military uniforms that chang...
Finish Fibre
suitability
Functions End use
Nano Care Cellulosic Wrinkle
resistance,
water and
stain repellent
All Cotton
w...
Self cleaning clothes
• Titanium dioxide nanoparticles are catalysts that help break down
carbon-based molecules,
• Requir...
Thanks !
With a hope for great success of Nano
Technology in Textiles finishing…
Nano technology and its applications
Nano technology and its applications
Nano technology and its applications
Nano technology and its applications
Nano technology and its applications
Nano technology and its applications
Nano technology and its applications
Nano technology and its applications
Nano technology and its applications
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Nano technology and its applications

Published on: Mar 3, 2016
Source: www.slideshare.net


Transcripts - Nano technology and its applications

  • 1. Bahir Dar University EiTEX Nano-Technology application in Textiles Prepared by: Bademaw Abate
  • 2. Introduction 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.”
  • 3. Cont… • Nanotechnology is the study and design of systems at the nanometre scale [0.000000001 (10-9) metre] the scale of atoms and molecules.
  • 4. Cont.. • Nanoscale materials can be rationally designed to exhibit novel and significantly improved physical, chemical and biological properties, because of their size. • Nonwoven fabrics composed of electro spun nanofibres have : a large specific surface area, a high porosity  a small pore size in comparison with commercial textiles making them excellent candidates for use in filtration, medical and membrane applications.
  • 5. Nano particle Properties • Dramatic change in properties of a substance when particle size reduced to nanometer range • Properties different than those of bulk material • Normal ceramic particle Brittle • Nano cramic particle Deformable, flexible • Normal Gold Yellow • Nano gold Red
  • 6. Cont.. • Small amount of nano species can interfere with matrix polymer and improve the performance of the resultant system to considerable extent. • This property of nano particles is explored in imparting high performance finishes to textiles
  • 7. Different structures of Nano Particles… • Whiskers  Whiskers are hair-like tactile sensors used by certain mammals and insects to monitor wind and navigate around obstacles.  Whiskers consist of high-aspect-ratio elastic fibers coated with conductive composite films of nanotubes and nanoparticles. • 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 Improverment in colorfastness Crease Retention Static Resistance
  • 17. Some Magic Nano Particles… • Clay Nano Particles • ZnO Nano Particles • TiO2 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… • TiO2 & 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. 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
  • 21. Teflon® Stain Protection • durable fluorochemical finish based on nano emulsion • It forms an invisible shield around each fiber. • Conventional stain resistance products are merely a surface coatings. • Teflon® works on the nano scale that is, on the molecular level to protect each fiber in fabrics
  • 22. Application • The fabric is padded and dried. • During drying water evaporates. • During subsequent curing operation the polymers melt and spread giving uniform coating of fibres due to nano size of the finishing agent.
  • 23. Fixation mechanism
  • 24. Antibacterial and Deodorant finishes based on nanotechnology 'Ag fresh' • Typical example: when human body perspire the clothing in contact with skin such as socks, shirts etc smell due to growth of bacteria. • This drawback is eliminated by Ag fresh finish • The anti-bacterial properties of silver are scientifically recognized • Nisshinbo has incorporated silver particles in a minute size of around 4nm into fiber through the use of the latest nanotechnology • A material of superior antibacterial, deodorant properties with good laundering fastness has been brought about by letting silver particles penetrate into the fiber itself.
  • 25. 'Ag fresh' • The 'Ag fresh' antibacterial, deodorant finish has been developed for use mainly in • garments worn close to the skin, • Further applications of this technology are being planned for use in uniforms, casual wear, shirts, bedding, nightwear, underwear, polo shirts and handkerchiefs.
  • 26. Ag nanoparticle penetration in fibre
  • 27. Applications of Nanotechnology In Military Science: • Military uniforms that change color to match the environment • Light weight bullet-proof vests • Clothing that scans your body for a perfect fit
  • 28. Applications of Nanotechnology • Stain/odor-free clothing & carpet • Bug-repellant clothing • Military uniforms that change color to match the environment • Light weight bullet-proof vests • Clothing that scans your body for a perfect fit Etc....
  • 29. Finish Fibre suitability Functions End use Nano Care Cellulosic Wrinkle resistance, water and stain repellent All Cotton wear Nano Pel Cellulosic, wool, silk, PET, NY, Acrylic, blends Water and oil repellent Interior furnishing, Bed linen, home clothing Nano Dry PET, NY, Acrylic Hydrophilic finish Synthetic sports wear, under garments Nano Tex Finishes Durability of all Nano Tex finishes 50 home launderings
  • 30. Self cleaning clothes • Titanium dioxide nanoparticles are catalysts that help break down carbon-based molecules, • Require only sunlight to trigger the reaction • The inventors believe that these fabrics could be made into self-cleaning clothes that tackle • dirt, • environmental pollutants and • harmful microorganisms • The titanium dioxide particles covering the fibres are 20 nm size
  • 31. Thanks ! With a hope for great success of Nano Technology in Textiles finishing…

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