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Acetate Fiber:
A manufactured fiber in which the fiber-forming
substance is cellulose acetate (FTC definition). Acetate is
manufactured by treating purified cellulose refined from cotton linters
and/or wood pulp with acetic anhydride in the presence of a catalyst.
The resultant product, cellulose acetate flake, is precipitated, purified,
dried, and dissolved in acetone to prepare the spinning solution. After
filtration, the highly viscous solution is extruded through spinnerets into
a column of warm air in which the acetone is evaporated, leaving solid
continuous filaments of cellulose acetate. The evaporated acetone is
recovered using a solvent recovery system to prepare additional
spinning solution. The cellulose acetate fibers are intermingled and
wound onto a bobbin or shippable metier cheese package, ready for use
without further chemical processing. In the manufacture of staple fiber,
the filaments from numerous spinnerets are combined into tow form,
crimped, cut to the required length, and packaged in bales.
CHARACTERISTICS: Acetate fabrics are in appearance fast-drying,
wrinkle and shrinkage resistant, crisp or soft in hand depending upon
the end use.
END USES: The end uses of acetate include lingerie, dresses, blouses,
robes, other apparel, linings, draperies, bedspreads, upholstery, carpets, umbrellas, formed
fabrics, and cigarette filters. |
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