textiles 2.5 / 5 based on 3 ratings ? Design & Technology: TextilesASAQA Created by: sophiaCreated on: 06-02-13 08:50 Explain what is meant by the term 'thermoplastic' fibres? thermoplastic polymers have a long chain of molecules tat are not cross linked. They soften whn heated and become hard again when cool. 1 of 5 name teo fibres which are thermoplastic 1. Acetate 2. Acrylic 2 of 5 Give two reasons why wool fibres are carded before being spun ino a yarn 1. to untangke the fibres and straighten them out 2. to make the fibres lie parrallel to each other 3 of 5 Explain what causes 'static electricity' to develop in some textile fabrics. this is due to the ibres that do not contain moisture and are in search of it as they are hydrophobic. 4 of 5 Give 2 reasons why a polyester sewing thread would be used o stitch the seams of a product made from a polyester/cotton fabric. 1. it has the same requirments as polyester 2. it has got some give,does not burn and is strong 5 of 5
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