Method for preparing direct-stretched bicomponent composite yarn and bicomponent composite yarn obtained by the method

摘要

The present invention relates to a method for producing a bicomponent composite yarn and a bicomponent composite yarn obtained by the method, comprising two thermoplastic polymers having different solubility in alkali, that is, a water-soluble polymer and a poorly soluble polymer, The bicomponent composite fiber having a cross section is directly spun and stretched at a speed of 1000-2,000 m / min at the high speed roller 1, and at a speed of 3,000-4,000 m / min at the high speed roller 2 to prepare a stretched yarn, and then the usable polymer is alkali. It is to provide a method for producing a direct spinning stretch bicomponent composite yarn characterized in that the weight loss treatment to dissolve and remove, the bicomponent composite yarn obtained by the present invention has a shari feeling and excellent gloss like natural silk can be used for high-quality medical care Can be.