21

Nonwoven fabric

Embed Size (px)

Citation preview

INTRODUCTION

Polymers

Fibers

Yarns

Woven

Knitted

Braided Non-woven

Fabrics

Application

Woven structure Knitted structure Braided structure

Introduction

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.

It may also having other names such as Shaped Fabrics (or) Yarn free Fabrics

Non-Woven structure

Definition

Nonwoven stuffs are largely described as piece or web structures, bonded simultaneously by entangling fibre or filaments mechanically, thermally or chemically.

Commercial Nonwoven Products

• Nonwovens are designed to offer particular characteristics, suitable for certain use. Their various properties are combined together in order to create the required functionalities.

• The modern nonwoven technologies are permits to simulate required structures and properties as per market need. Some of the commercially available products are listed below:

Some examples of Day-to-Day use of Technical Textiles

FurnishingShoulder Pads

Collar / Cuff InterliningsWaddings in

Jackets

ClothingKitchenFloor Mops

Tea Bags Coffee Filters

Carpets Vertical Blinds Wall Coverings

Civil EngineeringRailway Tracks Soil Erosion

Slope StabilizationsFlyovers Landfills

HospitalMasks, Gowns, Caps, Bandage, Baby Diaper,

Sanitary Napkin 35

Factory

Dust Collection Filter Bags Liquid Filtration Battery separators

Carpets, Roof-liners, Seat belts, Tyres,

Airbags

Car

Agrotech – Horticulture,Agricultural, Forest

Meditech – Personal Hygiene, Medical

Mobiltech – Car, Ships, Aircraft, Space

Buildtech – Construction, Lightweight engineering

Oekotech – Recyling, Waste Disposal

Clothtech – Garment, Shoes

Packtech - Packing

Geotech – Road & Rail Infrastructure

Protech – Person & Property Protection

Hometech – Furniture & Furnishing

Sporrtech – Sports &Leisure

Indutech – Filtration & Chemical Engineering

Classification

Nonwovens are used effectively for optimizing the productivity of crops,gardens and greenhouses.

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.

Agriculture & Horticulture

ProductsArtificial skin

Wound-contact layer Wadding, Scaffold

Plasters Elastic bandages

Non-elastic bandages Compression bandages

Gauze dressing

Products

• Surgical drapes• Surgical gowns• Surgical caps• Absorbent layer• Cover stock

• Surgical cloths• Surgical gowns• Masks• Wipes• Outer layer

Nonwoven Geotextiles are thicker and made either from short and continuous filaments, carded or laid in even patterns and then mechanically (needle punched) or thermally bonded.

GEO TEXTILES

Benefits of using Nonwoven inGeoTextiles

• Cheap and easy to manufacture.

• Superior chemical resistance in even theaggressive environment application.

• Highly porous structure

• Staple fibers needle punched together to form fabric capable of withstanding construction installation stresses.

- Sound insulation

- Anti-radiation-type construction textiles will be very important in the future.

- Foil, a special film, combined with materials such as foam thermal insulation products

- Resistance to hydrolysis with water, which is important in areas where contact isinevitable PU-ether-based chemical applied to the use of textiles.

- Breathable, wind-and rain-proof light houses.

Nonwoven applications inCONSTRUCTION

Household Textiles

Nonwoven fabrics can be used in thefollowing household textile applications:

– Floor coverings

– Upholstery materials

– Webbings, etc.,

Nonwoven wall hanging

China nonwoven carpet

Automotive InteriorsFacings and structural reinforcement materials are used in a variety of different applications Includes:

Headliners Trunk liners Door trim Package trays Sun visors Seats

In Shoes

A broad spectrum of applications including:- Liners- Counter

liners- Inter-liners

and- Reinforcing

materialsMembranes and insoles ensure a healthy foot climate and a high degree of foot comfort.

Advantages of using nonwovens

• Easy to recycle and compost• Easy to convert into pads and shapes• High tear resistance

Rice Bag

Example Product:

• Food wrap: Meat• Cheese and fish wrappers• Food contact packaging• Tea & coffee bags• Absorbent pads• Sacks, bags & sachets• Envelopes• Sacks and bags• Protection• Sheets, bags, sacks, wraps for delicate

products(Ex: electronic products, car bumpers,leather goods)

PACKAGING