Method for producing mixed filaments

Claim 1

A METHOD FOR PRODUCING A YARN CONSISTING OF A MIXTURE OF (A) FIBRILLATED MULTTSEGMENT COMPOSITE FILAMENTS CONSISTING OFF POLYESTER AND POLYAMIDE AND (B) POLYESTER MONOFILAMENTS, SAID POLYAMIDE BEING SELECTED FROM THE GROUP CONSISTING OF POLYHEXAMTHYLENE ADIPAMIDE, POLYCAPROAMIDE AND COPOLYAMIDES THEREOF, SAID POLYESTER BEING SELECTED FROM THE GROUP CONSISTING OF POLYETHYELENE TERPHTHALATE AND COPOLYESTERS THEREOF WHICH COMPRISES SIMULTANEOUSLY AND SEPARATELY SPINNING THROUGH A COMMON SPINNERET (1) MONOFILAMENTS OF POLYESTER HAVING A DENIER OF MORE THAN 2 TO FORM A COMPONENT (B) AND (2) COMPOSITE FILAMENTS OF POLYESTER AND POLYAMIDE IN WHICH THE POLYESTER OF EACH COMPOSITE FILAMENT IS DIVIDED INTO AT LEAST THREE SEPARATE SEGMENTS BY THIN INTERSECTING POLYAMIDE LAYER HAVING A SUBSTANTIALLY UNIFORM THICKNESS THROUGHOUT THEIR LENGTH AND WHICH EXTEND RADIALLY AND DIVEREGE IN A DIRETION AWAY FROM THEIR INTERSECTION TOWARD THE PERIPHERY OF SAID COMPOSITE FILAMENT, SAID POLYESTER SEGMENTS HAVING A DENIER OF LESS THAN 1, SAID COMPOSITE FILAMENTS BEING FROM 40 TO 70 PERCENT BY WEIGHT BASED ON THE SUM OF THE WEIGHTS OF SAID MONOFILAMENTS AND COMPOSITE FILAMENTS, SAID POLYAMID BEING LESS THAN 40 PERCENT BY WEIGHT BASED ON THE WEIGHT OF SAID COMPOSITE FILAMENTS AND SAID POLYAMIDE BEING LESS THAN 30 PERCENT BY WEIGHT BASED ON THE SUM OF THE WEIGHTS OF SAID MONOFILAMENTS AND COMPOSITE FILAMENTS, COMBINING THE MONOFILAMENTS AND COMPOSITE FILAMENTS, DRAWING THE COMBINED FILAMENTS AND THEN FALSE TWISTING THE COMBINED FILAMENTS TO FIBRILLATE SAID COMPOSITE FILAMENTS WHEREBY TO FORM A YARN IN WHICH THE FIBRILLATED SEGMENTS OF SAID COMPOSITE FILAMENTS AND SAID POLYESTERE MONOFILAMENTS ARE ENTANGLED AND ARE HOMOGENEOUSLY DISPERSED.

Claim 2

A METHOD FOR PRODUCING A YARN CONSISTING OF A MIXTURE OF (A) FIBRILLATED MULTTSEGMENT COMPOSITE FILAMENTS CONSISTING OFF POLYESTER AND POLYAMIDE AND (B) POLYESTER MONOFILAMENTS, SAID POLYAMIDE BEING SELECTED FROM THE GROUP CONSISTING OF POLYHEXAMTHYLENE ADIPAMIDE, POLYCAPROAMIDE AND COPOLYAMIDES THEREOF, SAID POLYESTER BEING SELECTED FROM THE GROUP CONSISTING OF POLYETHYELENE TERPHTHALATE AND COPOLYESTERS THEREOF WHICH COMPRISES SIMULTANEOUSLY AND SEPARATELY SPINNING THROUGH A COMMON SPINNERET (1) MONOFILAMENTS OF POLYESTER HAVING A DENIER OF MORE THAN 2 TO FORM A COMPONENT (B) AND (2) COMPOSITE FILAMENTS OF POLYESTER AND POLYAMIDE IN WHICH THE POLYESTER OF EACH COMPOSITE FILAMENT IS DIVIDED INTO AT LEAST THREE SEPARATE SEGMENTS BY THIN INTERSECTING POLYAMIDE LAYER HAVING A SUBSTANTIALLY UNIFORM THICKNESS THROUGHOUT THEIR LENGTH AND WHICH EXTEND RADIALLY AND DIVEREGE IN A DIRETION AWAY FROM THEIR INTERSECTION TOWARD THE PERIPHERY OF SAID COMPOSITE FILAMENT, SAID POLYESTER SEGMENTS HAVING A DENIER OF LESS THAN 1, SAID COMPOSITE FILAMENTS BEING FROM 40 TO 70 PERCENT BY WEIGHT BASED ON THE SUM OF THE WEIGHTS OF SAID MONOFILAMENTS AND COMPOSITE FILAMENTS, SAID POLYAMID BEING LESS THAN 40 PERCENT BY WEIGHT BASED ON THE WEIGHT OF SAID COMPOSITE FILAMENTS AND SAID POLYAMIDE BEING LESS THAN 30 PERCENT BY WEIGHT BASED ON THE SUM OF THE WEIGHTS OF SAID MONOFILAMENTS AND COMPOSITE FILAMENTS, COMBINING THE MONOFILAMENTS AND COMPOSITE FILAMENTS, DRAWING THE COMBINED FILAMENTS AND THEN FALSE TWISTING THE COMBINED FILAMENTS TO FIBRILLATE SAID COMPOSITE FILAMENTS WHEREBY TO FORM A YARN IN WHICH THE FIBRILLATED SEGMENTS OF SAID COMPOSITE FILAMENTS AND SAID POLYESTERE MONOFILAMENTS ARE ENTANGLED AND ARE HOMOGENEOUSLY DISPERSED.