PROCESS FOR PRODUCING PREOXIDIZED FIBER SPUN YARNS

• Main Authors: SAITO, KAZUHISA, HASEBE, TAKENOBU, YAMADA, KOZO
• Format: Patent
• Language: English; French
• Published: 26.04.1983
• Edition: 3
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, ORYARNS; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; LAUNDERING; MECHANICAL FINISHING OF YARNS OR ROPES; NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS; WARPING OR BEAMING; YARNS; YARNS OR THREADS

T-10-24730C/KS/80 A process for producing preoxidized fiber spun yarns is described comprising subjecting an acrylonitrile fiber tow to a preoxidation, applying a surface active agent, stretch cutting without crimping crimping to form slivers, processing in a gilling step, and spinning; according to this process, short fibers and powders of fibers are formed to a lesser extent, and nebs, slubs and flies, etc. are caused to a lesser extent, and preoxidized fiber spun yarns having high quality are obtained in a high yield.