non woven fabrics

Non-Woven

Prepared By : Mazadul Hasan sheshirID: 201000040000813th Batch (session 2009-2013)Department : Wet Processing Technology Email: mazadulhasan@yahoo.comBlog : 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

4. Fashion-Design-and-TechnologyLink : http://www.facebook.com/pages/Fashion-Design-and-Technology/587655294583875?ref=ts&fref=ts

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