non woven fabrics
TRANSCRIPT
Non-Woven
Prepared By : Mazadul Hasan sheshirID: 201000040000813th Batch (session 2009-2013)Department : Wet Processing Technology Email: [email protected] : www. Textilelab.blogspot.com (visit)
Southeast University Department Of Textile Engineering
I/A 251,252 Tejgaon Dhaka Bangladesh
Prepared By :
Total Textile Process at a Glance
Nonwoven is one type of fabric that is not made by weaving or knitting or interlacing of yarn. Nonwoven fabrics are broadly defined as sheet or web structures bonded together by entangling fibre or filaments (and by perforating films) mechanically, thermally, solvent treatment or chemically. They are flat, porous sheets that are made directly from separate fibres or from molten plastic or plastic film.
"Non-woven fabrics are fibrous sheet or web structures produced by bonding or interlocking fibers by mechanical, thermal or chemical means."
NON-WOVEN
In the 19th century, (when England was the leading textile producing country), realizing that large amounts of fiber were wasted as trim, a textile engineer named Garnett developed a special carding device to shred this waste material back to fibrous form. This fiber was used as filling material for pillows. The Garnett Machine, though greatly modified, today still retains his name and is a major component in the non-woven industry.
Later on, manufacturers in Northern England began binding these fibers mechanically (using needles) and chemically (using glue) into butts. These were the precursors of today's non-wovens.
History
1. PLA(Polymer Lactic Acid Nonwoven Fabric)
2. Blac3. Flame retardant4. PTFE-coated (Polytetrafluoroethylene)
5. Anti-static6. Anti-bacteria
FUNCTIONAL NON-WOVENS:
Absorbency Bacterial barrier Cushioning Filtering Flame retardancy Liquid repellency Resilience
Softness Sterility Strength Stretch Wash ability
CHARACTERISTICS NON-WOVENS:
Automotive interiors
Home furnishing nonwovens
Heat transfer printing material
Filter media
Cable wrapping
Building material
Tennis Court Surfaces
Blankets Automotive Carpeting
Space Shuttle Exterior Tiles
Marine Hulls, Headliners
Shoe FeltsGeo-textile
Roofing material
Industrial reinforced & Backing material
Automotive Insulation
APPLICATION OF NON-WOVENS:
Non-woven fabrics are bonded as following methods:
Mechanically
Thermally
Chemically
Solvent treatment
TYPES OF BONDING:
Fibers used to produced Non-Woven fabric:
Natural and Renewable Fibers Man-made Fibers
CottonViscoseLyocellPolylactide
PolyesterPolypropyleneBicomponent FibersRecycled Fibers
Recycled Fibers
1. Spunbond Process
2. Melt blown process
3. Water jet Process
4. Needle punched
According to process Non-Woven are classified as bellow-
TYPES OF NON-WOVEN PROCESS:
Spunbond fl ow Processchart
Machine for Spunbound Non-Woven
Specifications Width: 1.6-3.2 meters Throughput: 4-10T/24h (3.2m) Basis weight: 10-150g/m² Drawing in web width slot
Melt blown flow processchart
Machine for Melt Blown Non-Woven
Specifications :Effective Width : 1.6-3.2mFabric Weight: 7-220gsmLength-diameter Ratio: 30:1Machine Speed: 150m-250m/minMelting Point: 1660C
Water jet flow Process chart
Machine for Water Jet Non-Woven
Specifications:• Products: 2200mm 1600mm
and banisters can meet• Specifications: 30-160g/m2• Speed: 0-30 / min,
0-60m/mim• Material: 1.5-3D X 38-51
mm
Needle Punched flow Process chart
Machine for Needle Punched Non-Woven
Specifications Non Woven needle punched machine
high speed Width:160-1000cm Dynamic:50-60mm Acupuncture Frequency:700-
1200times/minutes
MedicalIsolation gownsSurgical gownsSurgical drapes and coversSurgical scrub suitsCapsMedical packaging: porosity allows gas sterilization
Use of Non-Woven
baby diapers or nappiesFeminine hygieneAdult incontinence productsWet wipesBandages and wound dressingsDisposable bath and face towelsDisposable slippers and footwear
HYGIENEC
Gasoline, oil and air - including HEPA filtrationWater, coffee, tea bagsPharmaceutical industryMineral processingLiquid cartridge and bag filtersVacuum bagsAllergen membranes or laminates with non woven Layers
FILTERS
Soil stabilizers and roadway underlaymentFoundation stabilizersErosion controlCanals constructionDrainage systemsGeomembrane protectionFrost protectionAgriculture mulchPond and canal water barriersSand infiltration barrier for drainage tileLandfill liners
GEOTEXTILES
Agricultural coverings
Agricultural seed strips
Apparel linings
Automotive headliners
Automotive upholstery
Carpeting
Civil engineering fabrics
Civil engineering
Geo textiles
Disposable diapers
Envelopes
Filters
House wraps
Household & personal wipes
Hygiene products
Insulation
Labels
Laundry aids
Roofing
Sterile medical-use products
Tags
Upholstery
Wall coverings
Use of Non-Woven
1. Yarn Manufacturing TechnologyLink : http://www.facebook.com/pages/Yarn-Manufacturing-Technology/485014954866808
2. Fabric Manufacturing TechnologyLink : http://www.facebook.com/pages/Fabric-Manufacturing-Technology/459520217425605
3. Garments Manufacturing TechnologyLink : http://www.facebook.com/pages/Garments-Manufacturing-Technology/472364799463126
3. Wet processing TechnologyLink : http://www.facebook.com/pages/Wet-Processing-Technology-Dyeing-/468645219825404
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