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textiles (new fabrics and technologies (Microfibres (properties…

- - - - microencapsulated dye changes colour with temperature change
    - - changes colour in response to light conditions
      - used in military /fashion clothing
  - - - comfortable
      - good drape
      - soft
      - last well
    - - outdoor clothing
      - sportswear
      - underwear
  - - - washable switches for items such as mp3 players
      - electrical heaters in car seats
      - heart rate and blood pressure sensors in clothing
  - - - made from carbon synthetic polymers
      - thin light and strong can be used by weaving into a bullet proof vest
    - - used to modify fabrics and give new properties
- - - - simplest tightest weave t
      - weft yarns go under and over alternative yarns
      - cheapest weave
    - - the weft goes over more than one warp yarn creating a distinctive zigzag pattern
      - this creates a stronger fabric
    - - weft yarns float over 4 or warp yarns giving a sheen to the fabric
  - - - made by forming interlocking loops running horizontally across the width of the fabric
      - loops trap and retain heat
      - loops can unravel
      - has stretch
      - weft knitting can be used simple jersey
        
        used in t-shirts socks and sweaters
    - - loops run horozontally
      - harder to unravel so can be cut more easily
      - require more complex machinery so are more expensive
      - stretchy but still hold their shape
  - - - a web of fibres are mixed with a solvet which softens fibres and releases a glue like substance which bonds the fibre which are the laid to dry
    - - a web of fibres are laid on a drum and hot air is injected to bound the fibres together
    - - the fibres are spun on a conveyer belt and glues are sprayed upon them
    - - is when wool like fibres are bounded together through the use of heat,moisture and vigorous movement which causes the fibres to inter lock
    - - they don't fray ,they can be moulded ,they come in a range of different weights
- - - - fabric is passed through heated rollers to give it a smooth finish
    - - synthetic fabrics are passed through pattern engraving rollers
    - - Fabric passed between rollers to give the fabric a soft finish
  - - - chemicals are sprayed upon fabrics to form a layer to create a protective barrier
    - - chemicals are applied to yarn which slow the burning process
    - - fabric is placed within sodium hydroxide making fibres swell and making cotton stronger and more absorbent
- - - - hardwearing
      - flammable
      - absorbent
        
        except polyester
  - - - not resistant to biological damage such as detergent of being eatern