Year 9 Textiles
Miss Rollo
There are 3 different ways to produce synthetic fibres.
They are:
•Dry Spinning
•Wet Spinning
•Melt Spinning
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1.The polymer chips are dissolved in a solvent
which makes them become a viscous solution
(Having a thick, sticky consistency between
solid and liquid).
2. The mixture is pumped from the hopper
through the spinneret.
3. Warm airs draughts evaporate the solvent
making the filaments coagulate.
(to change from a fluid into a thickened mass)
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4. The filaments are drawn and stretched
between 2 sets of rollers
5. The filament is wound onto bobbins
Fibres that are produced using Dry spinning
are; Acetate, Lycra, Acrylic
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Is the oldest man made fibre manufacturing
method.
1. Raw materials are dissolved by chemical to
form a viscous solution.
2. The mixture is pumped through the
spinneret.
3.Filament is spun into an Acid bath.
4.Yarn solidifies when coagulated by the acid
in the bath.
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5. Drawing and stretching is done by rollers
6. Filaments is wound onto bobbins
Fibres that are produced using Wet spinning
are; Viscose Rayon & Acrylic.
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Is the simplest method of obtaining the fibre.
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1. The polymer chips are melted at the base
of the hopper.
2. The pump forces the viscous solution
through the spinneret.
3. The streams of molten are then coagulated
into filaments by cool air.
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4. The filaments are then drawn onto rollers
with the last set moving faster than the first
set. This stretches the filament.
5. The filament is wound onto a bobbin.
Fibres that are produced using Melt spinning
are; Nylon & Polyester.