Nonwoven FABRICS

NONWOVEN

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

What is Nonwoven Fabric ?

Nonwoven fabrics are broadly defined as sheet or web structures bonded together by entangling fiber or filaments (and by perforating films) mechanically, thermally, or chemically. They are not made by weaving or knitting and do not require converting the fibers to yarn. Nonwoven Fabric is a fabric-like material made from long fibers, bonded together by chemical, mechanical, heat or solvent treatment. The binding process usually occurs through the pressing of fibres together with an adhesive, chemical binder, heat, ultrasonic pattern bonding. The popularity of Nonwoven fabrics is increasing day by day because of low cost & they are hygienic & they are easily disposal . But the can’t easily be washed or reused properly.

Uses of Nonwoven FabricHousehold Geotextiles Industrial/Military Health Care

Aprons Soil stabilization Coated fabrics Shoe covers

Tea and coffee bags

Drainage Clean room apparel

Lens tissue

Tablecloths Road and railroad beds

Air conditioning filters

Surgical: caps, gowns, masks,

Ironing board pads Sedimentation and erosion

Military clothing Diapers

Fabric softener sheets

Pond liners Conveyor belts Bandages, tapes

Classification Of Nonwoven Fabrics

Raw materials for Nonwoven Fabric production Fibrous MatterCottonRayonAcetateWoolPolyamides and polyesterAcrylicOther fibers

PROPERTIES OF NONWOVEN FABRICS PRDUCED USING DIFFERENT FIBROUS MATTER

GENERAL PRODUCTION STEPS FOR NONWOVEN FABRIC MANUFACTURING

PROPERTIES DESIRED IN A BONDING AGENT

StrengthAdhesion to FibersFlexibility/handleElastic RecoveryMinimum film forming temperatureResistance to washing/ Drying cleaningGood color and color retentionEconomicalOther special requirements

WORKING OF BINDERS

Types Of BinderAcrylicStyrenated acrylicVinyl Acetate (VAC)Vinyl AcrylicsEthylene Vinyl Acetate (EVA)Polyvinyl Chloride (PVC)Ethylene/Vinyl ChloridePolyvinly alcohol (PVA)

Nonwoven fabric bonding techniques

MECHANICAL BONDING : - NEEDLE PUNCHING TECHNOLOGY

STITCHED BONDING TECHNOLOGY

HYDRO-ENTANGLEMENT

ADHESIVE BONDING OR CHEMICAL BONDING : - SATURATION ADHESIVE BONDING

SPRAY ADHESIVE BONDING

FOAM BONDING :- APPLICATION OF POWDERS

PRINT BONDING

DISCONTINUOUS BONDING :- THERMAL BONDING

FINISHING OF NONWOVEN FABRICS

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

My Facebook Textile related Pages

http://www.textilelab.blogspot.com (Visit )