Acrylic fiber is a synthetic fiber that closely resembles wool in
its character. According to the definition of the ISO
(International Standards Organization) and BISFA (International
Synthetic Fiber Standardization Office), fibers which contain a
minimum of 85% acrylonitrile in their chemical structure are
called "Acrylic Fibers".
Acrylic fiber is composed of acrylonitrile and a comonomer. The
comonomer is added to improve dyeability and the textile
processability of the acrylic fiber. Acrylic fiber is produced
with two different systems: wet spinning and dry spinning.
Acrylic fiber can be supplied as producer-dyed either by
pigmentation of the dope or with jel dyeing systems. It can be
used 100% alone, or in blends with other natural and synthetic
fibers.