Texturisation

Texturisation is the process by which flat filaments are distorted to have crimps, coils, curls or loops along their length to achieve bulk and greater absorbency.
loop-coil-curl-crimp

Basic principal of texturisation: Texturisation is performed in three steps:
  1. To heat the yarn plastic condition.
  2. To impart the required shape of filament.
  3. To cool it to retain the shape.
Advantage:
  1. Crease resistance.
  2. Better appearance.
  3. Higher absorbency and better perspiration conductivity.
  4. Better air permeability.
  5. More flexible.
Disadvantage:
  1. Decrease abrasion resistance.
  2. Creates hairiness of fiber.
  3. Create problem in laundering.
Process of texturisation:
  1. False twist method.
  2. Stuffer box method.
  3. Gear box method.
  4. Knit-de-knit method.
  5. Stress-curled method.
  6. Air-jet method.
Classification of textured yarn:
  1. Stretch yarn:
    1. Property: High extensible. Less bulk.
    2. Process of texturisation: False twist method.
    3. End use: Socks, swimming costume.
  2. Modified stretch yarn:
    1. Property: Intermediate between stretch and bulk yarn.
    2. Process of texturisation: False twist method.
    3. End use: Carpet, upholstery.
  3. Bulk yarn:
    1. Property: High bulk, less extensible.
    2. Process of texturisation: Air-jet, shuttle box.
    3. End use: Carpet, Garments.

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