Structures of wool fibers Submicrostructure – Cotex core of the wool fiber: 90% of the fiber volume, consists of countless long, spindle-shaped cells held together by intercellular cement
Introduction Fibers in which forming substance is cellulose acetate where not less than 92% of hydroxyl groups are acetylated: replacing -OH groups with - COCH3
Introduction The larva of certain insects for use in their building webs, climbing ropes and cocoons Spiders Commercial silk industry: use larva of silkworm Application: Mostly apparel, was also used for parachutes
