The invention relates to a superfine hetero composite elasticized
fiber and its manufacturing method, special
spinning equipment,
spinning art and the related technique, uses routine
polyester slice, highly contractive
polyester, and so on as raw materials to prepare
spinning solution, makes multicomponent composite spinning on the spinning solution and
water soluble polyester, and then elasticizes to make a superfine isomeric composite elasticized
fiber finished product, where single silks of the
fiber are distributed like an island, and by post
processing, the
fineness of the fiber is up to 0.01-0.001 dan, and besides, the fiber has the superfine, different-contractive and different section properties. The fabric produced by this fiber has
handwriting effect, especially soft handing, and
humidity absorbing property up to and even over that of
natural fiber, full, comfortable and good-air permeability; and the surface of the fabric has a shine like silk and good
dyeing property. This fiber can be widely applied to the industries of
machine weaving, knitting, silk manufacturing, etc., to manufacture minic, high grade clothing,
blood filtering material, etc.