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Spinning.

Spinning.

  • The bulk polymer is converted into fiber form by spinning.
  • Spinning usually requires solution or melt of polymers.
  • If a polymer can be melted under reasonable condition, the melt spinning is preferred over other solution process for production of fibre.
  • The various spinning process are described below:

1) Melt Spinning:

  • It is the convienent and economic process for manufacturing polymer fibre at industrial scale.
  • In melt spinning, the polymer chips are melted .
  • The melted polymer chips are then pumped through a spinneret into an air chamber.
    Spinneret.
  • The polymer extruded is then cool and solidifies into a continuous filament which is then drawn out from the chamber, processed or twisted or both further and subsequently wound into spools.
  • The polymer fibre manufacture from this method are polyester,nylon, polypropylene etc.
  • This process is illustrated from figure below.
    Mechanism of melt spinning
    Mechanism of melt spinning.

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