섬유

The Rayon Fibre Process and Fibre Characteristics.

  • 출판일1999.05
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 268
Rayon fibers are manmade fibers composed of regenerated cellulose and are chemically identical to cotton on a molecular level. The three rayon fiber manufacturing processes are the viscose, cuprammonium, and Tencel methods. The viscose method is the most widely used. The cuprammonium method, which is more expensive, serves niche markets for continuous filament yarns with high luster. The Tencel Process is more environmentally friendly and results in fibers with many behavioral advantages over viscose and cuprammonium. The viscose process involves the use of wood pulp, steeping, mercerizing, xanthation, opening, filtration/deaeration, extrusion, washing, and drying. Viscose rayon, which is manufactured in deniers between 1.5 and 50, has a dry tenacity of 2.0-2.6 grams per denier. Tencel manufacture uses a straight solvation process that decreases degradation of the cellulose chains and increases strength, modulus, and crystallinity.
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