FIBRE TO YARN PROCESS: Regenerated Fibre
1. Extracting
Obtaining cellulose from wood pulp, primarily sourced from trees like spruce and pine.
2. Dissolving
The extracted cellulose is dissolved in carbon disulfide to produce a viscous solution known as viscose.
3. Filtering
The solution passes through filters to remove any other impurities.
4. Extrusion
The solution is extruded via spinnerets to create continuous filaments.
5. Coagulation
Extruded filaments are cooled in coagulation bath which contains sulfuric acid, helping to regenerate cellulose.
6. Washing and drying
The filaments are washed and dried thoroughly after solidification to remove all residual chemicals followed by drying.
7. Cutting
The filaments are cut into staple fibres
8. Spinning
The staple fibres are turned into yarn by winding them together
