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FSN 101 - lecture week two.doc

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Ryerson University
FSN 101
Louis Pike

FSN 101 – Textiles I Week 2 _____________________________________________________________________________ _ Old Text – pages 9-15 & 20-28/New Text - pages 18-24 & 32-39 Key Terms fibre mono/multi filament tex, denier manufactured yarn serviceability crimp natural staple luster drape synthetic filament hand tow micron life cycle analysis product development micro fibre Lecture Outline 1. What are the differences between fibres, yarns and fabric? Either some from nature, or man made 2. What are the differences between natural and manufactured or synthetic fibres? Natural sources – wool, very distinct texture - hairs interlock by the shingle like scales attaching – round, the larger the shingles the rougher (itchy) the fibre – wool coiled like a slinky or crimped – silk – fibre has a distinctive triangular shape end, is a long filament – cotton – come from a flower once the leaves drop off, the seed pot (boll) carries the fibres that are then spun – many different kinds of cotton (pima, Egyptian, sea island) the length of the fibre is longer then ‘regular cotton’ – appearance is like a twisted ribbon with a kidney bean shaped end, there tends to be a hollow centre, which allows absorbency properties – linen – created by the flax plant, blue flower, however the fibre is made from the stem, a stem that is decomposed, creates linen. The fibre looks like ‘bamboo’, has a hallow centre Manufactured fibres - spinnerette tool – fixed solution is pushed through the spinnerette, from the other end the fibre comes out (able to mould different shapes and width) 3. What is the difference between staple and filament fibres? Staple - come primarily from natural fibres - short filament - infinitely long, however can be cut into shorter fibres 4. What is the difference between mono and multi filament? What is tow? Mono - One - ‘Fishing line’ or invisible thread that is used for hems, or a mitalic thread running through the garment multi - many - majority of filaments are multi Tow - loose rope of several thousand filament fibres - crimping of texturizing the fibre adds bulk 5. How do fibres contribute to fabric performance? Features and benefits 6. What is serviceability
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