3.2 Fabrics 3.2.1 Natural and artificial fibres 3.2.2 Washing the various types of fibres 3.2.3 Washing animal fibres: ѓ Neutral detergents ѓ Greater quantity of water ѓ Maximum temperature 40°C ѓ Minimum mechanical agitation, short times Cellulose vegetable fibres: ѓ Alkaline (Base) detergents ѓ Bleach (if used): Sodium hypochlorite (NaClo) ѓ High water temperature (if OK for coloureds; for linen, if heavily soiled, bleaching is preferable to washing at high temperatures). ѓ Normal quantity of water ѓ Vigorous and prolonged mechanical action ѓ Spinning Artificial chemical fibres:
ѓ Neutral detergents ѓ Less mechanical action and minimum spinning ѓ Greater quantity of water ѓ Maximum temperature: 70°C (whites), 50°C (coloureds); bleach with a diluted solution of Sodium hypochlorite (NaClo) and hydrogen peroxide (H 2 O 2 ) Synthetic chemical fibres:
ѓ Stronger detergents ѓ Maximum temperature 40-60°C ѓ Short wash ѓ Medium spin speed SOI/DT 2006-03 dmm 8/70 599 37 67-82 NATURAL FIBRES ANIMAL FIBRES Wool Special wool Silk CELLULOSE VEGETABLE FIBRES Cotton Linen Canapa Hemp Ramie ARTIFICIAL FIBRES ARTIFICIAL CHEMICAL FIBRES Viscosa rayon Cupro rayon Special rayons Rayon and polynosics Acetate rayon Triacetate rayon SYNTHETIC CHEMICAL FIBRES Polyamide fibres Polyurethane fibres Polyureic fibres Polyester fibres Polytechnical fibres