SPINNING SOLUTION FILTERING SYSTEM Russian patent published in 1998 - IPC

FIELD: production of articles from spinning solution. SUBSTANCE: machine has spinning solution source from which spinning solution is directed through filtering system having set of filtering devices and spinning heads, each provided with spinneret. First filtering device used at the initial stage has filtering members with pores of smallest size. Filtering system has filtering device used at final stage and positioned upstream of each spinning head. Filtering device used at final stage has pores of largest size equal to or below spinneret opening size. Filtering medium in intermediate filtering devices positioned between filtering devices used at initial and final stages has pores of size gradually increasing from first to final filtering device in the course of flow of spinning solution. EFFECT: increased efficiency and improved quality of filaments. 10 cl, 3 dwg