1. Non Woven Fabrics Presented by: Lucky Vankwani TMM1 AsadJafri AMM1

2. What does wikipedia say? Non-woventextiles are those which are neither woven nor knit, for example felt. Non-wovens are typically not strong (unless reinforced by a backing), and do not stretch. They are cheap to manufacture.

3. Non-woven Introduction Web formation methods Bonding Systems Discussion

4. Introduction Polymers Fibers Yarns Woven KnittedBraidedNon-woven Fabrics Textile Medical Products It eliminates the yarn production process and makes the fabric directly from fibers.

5. Facts & trivia

6. Production Rate

7. Making Non-woven products There are normally two steps for making non-woven products. Bonding systems Web formation.

8. Bonding systems

9. Bonding systems Bonding systems in non-woven Needled felts Adhesives Heat bonding Stitch bonding

10. Bonding System1) Needled felts Fibres which have no directional frictional properties need to be mechanically entangled in order to form felts. This is done using barbed needles. Needle punching Cross section of a needle-punched bonded fabric.

11. Bonding System2) Adhesives For most nonwoven applications, fibre-to-fibre friction does not provide enough strength. Adhesive can be effective in holding the fibres together. The properties of an adhesive-bonded nonwoven depend to quite a large extent on the properties of the adhesive polymer used.

12. Bonding systems3)Heat Bonding When a web of thermoplastic fibres (polyester, nylon) or filament is heated, the fibres cross over each other at many points. This way, the resultant fabric has desirable textile properties. Such melt-welded fabrics are called Melded fabrics. Melt-bonding at selected points to give extra stability to a spun bonded geotextile

13. Stitch Bonding Webs may also be given extra strength by stitching them through with yarns. Such structures are usually more flexible and less paper-like than heat-bonded or adhesive bonded nonwovens. Stitch bonding is based on principle of warp knitting. Sharp-pointed needles pierce the base and loop binding yarns through it. In this way, relatively cheap but stable fibres, with or without pile, can be produced. Carpet underfelts are often stitch-bonded.

14. Applications Non-woven materials are used in numerous applications, including: Hygiene Baby diapers Feminine hygiene Adult incontinence products Wipes Domestic Technical Filters Geotextiles Carpet backing Composites Astro-turf

15. Web formation

16. Web formation A nonwoven fabric is basically a web of fibers held together in some way. The web may be made of Staple Fibresor Filaments, or from portions of polymer film.

17. Web formation through staple fibres

21. Webs from filament It is possible to tangle filaments together to form a web. Such webs are much stronger than web made from staple fibres. The thermoplastic filaments are welded to each other to form a strong fabric suitable for curtains & tablecloths. Sometimes, the filaments are textured before web formation. This allows greater extensibility of the fabric in use.

22. New web formation method Spun-laced webs is a new method of entangling fibres to create lace-like nonwoven fabrics uses fine, precisely controlled, jets of water. The resultant fabric does not need any further reinforcing by heat or adhesive. It is pliable, resistant to damage during washing, drip-dry, light, warm and soft, excellent for curtains, table cloths and other lace-type application.

23. Conclusion This section we discussed what non-wovens are and their applications in textile. We also discussed the web formation methods for both staple fibres and filament fibres.