SECTION 1YARN FUNDAMENTALSFibre compositionsCertificationsFibre to yarn processYarn structuresYarn countDyeingYarn treatmentsPillingFactors for yarn selectionCase study NATURAL FIBRE PROCESS HAIR FIBRE Wool Cashmere Mohair Alpaca Angora Yak Camel Hair Silk FILAMENT FIBRE Cotton SEED FIBRE Flax - Linnen Hemp Ramie Acetate Rayon SYNTHETIC FIBRE SYNTHETIC FIBRE PROCESS REGENERATED FIBRE BAST FIBRE Acryl Nylon Polyester Polyurethane Summary < Certifications Overview Hair fibre >