۱۳۸۷ فروردین ۵, دوشنبه

تکنولوژی تولید آکرولیک( DRY and WET spinning )


Technology
Acrylic is defined as a manufactured fiber in which the fiber forming substance is any long-chain synthetic polymer composed of at least 85% by weight of Acrylonitrile units. Acrylic fibers create a fine, soft and luxurious fabric with the bulk and hand of wool.
FeaturesAcrylics are fine soft and luxurious fabric with the bulk and hand of wool.Light weight and springy, this fabric is non-allergenic, it dries quickly.CharacteristicsAcrylic has many appealing properties, and the sports world is just one industry that is increasingly taking advantage of them. Acrylic’s high performance is making it one of the fastest growing fibers in the outdoor, performance apparel categories.
Dry Spinning ProcessAcrylic fibers are produced by two basic methods of spinning (extrusion), dry and wet.
In the dry spinning method, material to be spun is dissolved in a solvent. After extrusion through the spinneret, the solvent is evaporated, producing continuous filaments that later may be cut into staple, if desired.
Wet Spinning ProcessIn wet spinning, the spinning solution is extruded into a liquid coagulating bath to form filaments, which are drawn, dried, and processed

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