公开(公告)号：US3705074A

公开(公告)日：1972-12-05

申请号：US3705074D

申请日：1971-05-21

Applicant: ALLIED CHEM

Inventor： LAMB GEORGE E R ,  PREVORSEK DUSAN C ,  KOTLIAR ABRAHAM M ,  OSWALD HENDRIKUS J

IPC: D01D5/42 ,  D01F6/88 ,  D02G3/06

CPC classification number: D01D5/423 ,  D01F6/88 ,  Y10S57/907 ,  Y10T428/2913 ,  Y10T428/2973

Abstract: THE INVENTION CONTEMPLATES THE PREPARATION OF FIBRILLATED YARNS OR STRANDS HAVING HIGH BULK AND GOOD TACTILE PROPERTIES FROM A UNITARY STRUCTURE, E.G. MONOFLAMENTS. THE MONOFILS, TAPES, FILMS AND THE LIKE HEREAFTER REFERRED TO AS A MONOFIL ARE EXTRUDED FROM POLYMER MIXTURES CONSISTING OF (A) A LOW MOLECULAR WEIGHT POLYESTER AND (B) ONE OR MORE OF THE FOLLOWING POLYMERS; (I) A FIBER FORMING POLYAMIDE, (II) A FIBER FORMING POLYESTER AND (III) A FIBER FORMING POLYOLEFIN IN BLENDS OR MIXTURES WHOSE COMPOSITION IS CAPABLE OF PRODUCING SUITABLE FIBERS. THE SPLITTING OF THE MONOFIL INTO A RELATIVELY HIHG BULK STRUCTURE CONTAINING MANY FIBRILS IS EFFECTED BY SUITABLE MECHANICAL WORKING WHICH BREAKS OR FISSURES THE MONOFIL INTO SEPARATE FIBRILS.