Acrylic fibers are synthetic fibers made from a polymer (Polyacrylonitrile)
with an average molecular weight of ~100,000.
Acrylic fibers are modified to give special properties best suited for
acrparticular end-uses. They are unique among synthetic fibers because
they have an uneven surface, even when extruded from a round-hole
Acrylic is lightweight, soft, and warm, with a wool-like feel. It dyes
very well and has excellent colorfastness.
resilient, retains its shape, and resists shrinkage and wrinkles. It is
quite varied in form and sometimes has an appearance similar to wool or
Acrylic has recently been used in clothing as a cheaper alternative to
cashmere, due to the similar feeling of the materials.
polymer is formed by free-radical polymerization. The fiber is produced
by dissolving the polymer in a solvent such as N,N-dimethylformamide or
aqueous sodium thiocyanate, metering it through a multi-hole spinnerette
and coagulating the resultant filaments in an aqueous solution of the
same solvent. Washing, stretching, drying and crimping complete the
Acrylic fibers are manufactured in staple fibers, almost with a wet
spinning process. However some fibers are manufactured with a dry
spinning process. Such dry spun fibers have different fabric hand from
that of wet spun fibers and are developing in a variety of new end-uses.
Acrylic fibers are manufactured in a wide variety of characteristics
such as those lustered, delustered, with soft tactile feeling, and with
rigid tactile feeling.
are many other types of acrylic modified fibers such as animal-like
fibers with oval cross-section, thermal resistant fibers, anti-pilling
fibers, antibacterial and deodorant fibers, and anti-static fibers.
Acrylic fibers are widely used, making the most of their
characteristics, for knitted products such as sweater and jersey;
bedding textiles such as blankets and Pile sheets; and carpets for
home-uses. In addition, rag animals and western wigs are the products
making use of acrylic fibers.
focus of the worldwide acrylic fiber market is shifting towards
developing regions. Since the early 1990s, the production of acrylic
fiber in developed regions such as, the US and Europe has declined,
leading to closure of several production units.
increasing production in Asian regions is a result of soaring domestic
demand and dependence of the western nations on low-cost production
centers in Asia.
Government subsidy on land, cheap energy and labor resources have also
helped Asian economies to emerge as dominant producers of the acrylic
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