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Information @ a Glance

General

  • 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 spinneret.

  • Acrylic is lightweight, soft, and warm, with a wool-like feel. It dyes very well and has excellent colorfastness.

  • It is resilient, retains its shape, and resists shrinkage and wrinkles. It is quite varied in form and sometimes has an appearance similar to wool or cotton.

  • Acrylic has recently been used in clothing as a cheaper alternative to cashmere, due to the similar feeling of the materials.

Process

  • The 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 processing.

  • 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.

  • There 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.

Uses

  • 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.

Market

  • The 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.

  • The 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 fiber market.
     

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