HUEC 2040 Chapter : Chapter 7
Document Summary
Manufactured regenerated fibers: rayon, 1832 nitrocellulose, 1891 artificial silk production, count hillaire de chardonnet, 1910 commercially produced in us, 1924 named rayon, rayon manufactured fiber composed if regenerated cellulose. Largest group made today: cuprammonium rayon, 1926, high-tenacity rayon, 1950s, high wet modulus (hwm) rayon, 1953, wood pulp, major source. Linters: waste staple fibers, timber, 8-12 years old, eucalyptus tree, spruce tree, southern pine, chips, remove lignin and resin, pressed and cut sheets. Properties of rayon: dimensional stability, stretched and low elastic recovery, progressive shrinkage, abrasion resistance, extremely low, resists pilling, decreases wet. Uses of rayon: apparel, high end, blended, more durable. Interior textiles: nonwoven textiles, cotton balls, disposable diapers. Rayon: read labels, viscose dry clean, hwm launder, hand or machine. Lower ironing temperatures: chrline bleach deteriorates, perborate bleaches safer. Lyocell: courtaulds 1991, tencel trademark fiber, acordis 1992, first producers of lyocell, the lenzing company, lyocel by lenzing , 1996 new generic fiber in 30 years, solved spinning process.
