Spinning fibres and making a yarn

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  • Created by: Steff06
  • Created on: 22-05-16 13:03
How are synthetics spun (3)
Synthetic polymer chips are melted. Molten synthetic solution extruded through spinnerette. Dried/set using 1 of 3 methods.
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What is produce from spinning?
A smooth, continuous filament.
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What are the 3 types of drying and setting the fibres?
Wet spinning, dry spinning, melt spinning.
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What is wet spinning?
Where they are set in a chemical bath.
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What are examples of fabrics that were wet spun?
Viscose and acrylic.
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What is dry spinning?
Hardened in warm air.
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What are examples of fabrics that were dry spun?
Acrylic and acetate.
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What is melt spinning?
Hardened in cool air.
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What are examples of fabrics that were melt spun?
Nylon and polyester.
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What is the basic process of making a yarn? (3)
Cotton or wool fibres used. They are carded (combed) together to form a soft sliver. They are twisted together.
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What are the reasons for twisting?
Adds strength, aligns fibres, adds texture and bulk.
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What are the properties of a low twist?
Bulky and more insulating.
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What are the properties of a high twist?
Less insulating, tight, smoother and more reflective.
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Other cards in this set

Card 2

Front

What is produce from spinning?

Back

A smooth, continuous filament.

Card 3

Front

What are the 3 types of drying and setting the fibres?

Back

Preview of the front of card 3

Card 4

Front

What is wet spinning?

Back

Preview of the front of card 4

Card 5

Front

What are examples of fabrics that were wet spun?

Back

Preview of the front of card 5
View more cards

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