- Cotton+Linen - Plants
- Wool- Sheep (animals) ----------> staple length fibres with the exception of
- Silk- Silkworms silk which comes in filament lengths.
Process: harvested, cleaned, straightened and then spun into a yarn.
Sustainability: They are sustainable, biodegradable, come from renewable resources and recyclable.
Properties: Absorbant, strong when dry, poor resistance to biological damage.
- Made from natural fibres ( cellulose fromm wood pulp) chemically treated to produce fibres. Different fibres, different chemicals.
Process ( viscose fibres): dissolving cellulose in sodium hydroxide solution. Forced into tiny holes, hardened forming filament fibres. stretched into yarn, wound onto spools or chopped into staple lengths.
Sustainability: Come from renewable origin, synthetic chemicals make it less sustainable. However TENCEL is produced with recyclable chemicals, fibres recyclable, biodegradable.
Properties: similar to natural fibres, different properties can be created by using different chemicals.
- Polyester,Lycra,Acrylic- Oil
- Nylon - Coal
Process: Polymers melted or dissolved in solution. Liquid forced into tiny holes and then hardened to form filament fibres.Then stretched into yarns, wound onto spools or chopped into staple lengths.
Sustainability: Less sustainable because of non- renewable sources.
Properties: Can be given different properties. resistant to biological damadge, changed easily by heat ( different shapes and textures) and not absorbant so difficult to dye.