Nonwoven - instruction and Definition of Nonwoven

The term is used in the textile manufacturing industry to denote fabrics, such as felt, which are neither woven nor knitted.. Definition of Nonwoven by EDANA A nonwoven is a sheet of fi

Nonwovens

Department Of Textile Engineering

I/A 251,252 Tejgaon Dhaka Banglade sh Cutesy :

Southeast University

Department Of Textile Engineering

I/A 251,252 Tejgaon Dhaka Banglade sh

Prepared By : Mazadul Hasan sheshir ID: 2010000400008

13th Batch Wet Processing Technology Email: mazadulhasan@yahoo.com

Prepared By :

Nonwoven Fabric is a fabric-like material made from long fibers, bonded together by chemical, mechanical, heat or solvent treatment The term

is used in the textile manufacturing industry to denote fabrics, such as felt, which are neither woven nor knitted Nonwoven materials typically lack strength unless densified or reinforced by a backing

bonded simultaneously by entangling fibre or filaments

mechanically, thermally or chemically.

Definition of Nonwoven by EDANA

 A nonwoven is a sheet of fibres, continuous filaments or chopped yarns of any origin, that have been formed into a web by any means, and bonded together by any means with the exception of weaving or knitting.

History of Non-Woven

 The nonwoven textile fabric industry had an exploratory beginning in the late 1940s which entered into a development phase in

the 1950s followed by commercial expansion in the 1960s

 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 batts These were the precursors of today's non-woven

 The great advantages in non-woven fabrics is the speed with which the

final fabric is produced.

 All yarn preparation steps are eliminated, and the fabric production itself

is faster than conventional methods.

 To produce 500,000 meters of woven sheeting requires 2 months of yarn

preparation, 3 months of weaving on 50 looms and 1 month for finishing

and inspection.

 Non-woven fabric can deliver the same quantity of sheeting within 2

months from order.

 Not only are production rate are higher for nonwovens, but the process is

more automated, requiring less labor than even most modern knitting or

Woven Vs Nonwoven

Woven Fabrics (current utility uniform fabrics): Non-Woven (not woven from the loom) Fabrics:

o Old Textile technologies known for centuries o Only a few decades’ old, future fabric technologies

o Outdated and outsources to other countries o Offer innovation and technological growth for the industries in the USA

o Not very effective for barrier garments o Very Effective for barrier clothing

o Many steps thus expensiveive. o Few steps thus Less Expensive

o Examples – Garment, Furnishings etc. o Examples – Medical Garments, Hazmat Clothing, Automotive etc.

Making nonwoven production

 There are normally three stages for

making non-woven products.

 They are:

1. Web formation,

2. Bonding systems; and

3. Finishing treatments

Raw Materials

Cellulosic fibers

 The volume of bleached cotton used in nonwoven fabrics has been steadily increasing and polyester and rayon-polyester blends in nonwoven fabrics bonded by hydro entangling have become attractive combinations for medical and feminine hygiene applications There has been an interest

cotton-in uscotton-ing unbleached cotton cotton-in nonwoven processes and some attractive experimental fabrics have been produced through the use of the hydro entangling process

Uses of Non-Woven

Auto Air Filtration

 Micron Air particle filters, with their high arrestance Microfiber nonwovens, protect driver and passengers of a vehicle from pollen, dust, soot and other harmful

particles penetrating inside their car via the intake air flow

Liquid Filtration

 Nonwovens for filtering coolants and lubricants, as well

as washing, phosphating and coagulation baths in the metal-processing industry.

 Nonwovens for filtering milk, frying fats, drinking water, and blood plasma.

 Membrane support nonwovens for filtering fruit juices, enzymes, electro-dip coating and effluents.

Indoor Climate Control and Air Filtration

 Air filters for intake, exhaust and recirculated air

filtration in indoor climate control systems:

 Filter cartridges, filter plates,

filter bags and Eco-Protect safety

filters for industrial dust removal

applications, with

high-performance filter media made of

nonwovens.

Furniture/Textile Application

 In furniture/textile applications, nonwovens

satisfy even the most disparate functional

requirements for producing upholstered furniture, bed ware and quilted products, and protective clothing Nonwovens here excel in terms of their textile look, their air-permeable breathability, and high abrasion resistance values

 In horticultural applications, nonwovens protect the plants against temperature extremes by day and by night, thus creating the foundation for earlier harvests with excellent results They are permeable to both air and water, UV-stabilized, and

resistant to rotting

Automotive Interiors

 Facings and structural reinforcement materials are

used in a variety of different applications Includes:

Inspection system of nonwoven fabric

 There are some common inspection system for nonwoven fabric is given bellows:

1) Seat Belt Inspection

2) Medical Webbing Inspection

3) Elastic Inspection

4) Rigid Webbing Inspection

5) Ribbon Inspection

6) Zipper Inspection

Melt blown process

Needle felting

Sample of Nonwoven Fabric

 Using Polypropylene (PP) materials non woven fabrics are:

Nonwoven for GEO Textiles

Nonwoven for Medical Textiles

Association Takes role for Development of Nonwoven :

1) Association of the Nonwoven Fabrics Industry (INDA) which is research for total improvement of nonwoven fabric since 1968 to still

now Their conferences and action-oriented committees bring industry professionals together to explore the most pressing trends and issues in the areas of government relations, technology, marketing and international commerce.

2) In 1991 The Nonwovens Cooperative Research Center (NCRC) was established as a State/Industry-University Cooperative Research

Center (State/IUCRC).

3) Asian Nonwovens Fabric Association (ANFA) opens membership for the Asian countries for expending the business of nonwoven.

4) EDANA is the international association serving the nonwovens and related industries EDANA provides a comprehensive range of

services and supplies its members with the information and data necessary for them to enhance the industry goals and performance.

single-use fabric or a very durable fabric Nonwoven fabrics provide specific functions such as absorbency, liquid repellency, resilience, stretch, softness, strength, flame retardancy, wash ability, cushioning, filtering, bacterial barrier and sterility These properties are often combined to create fabrics suited for specific jobs while achieving a good balance between product use-life and cost In combination with other materials they provide a spectrum of products with diverse properties and are used alone or as components of apparel, home furnishings, health care, engineering, industrial and consumer goods.

textile.

Machine of Nonwoven Industry

Machine of Nonwoven Industry

Lay Out Of Non oven Factory

Machine of Nonwoven Industry

Thank You!