公开(公告)号：US3798298A

公开(公告)日：1974-03-19

申请号：US3798298D

申请日：1972-02-01

Applicant: STAMICARBON

Inventor： VAN KRIMPEN P ,  WETZLER V

IPC: D02J1/22 ,  D04H3/16 ,  D01F3/10

CPC classification number: D04H3/007 ,  D02J1/22 ,  D04H3/16

Abstract: A PROCESS AND AN APPARATUS FOR PREPARING A FIBRE FLEECE, IN WHICH A POLYMER MATERIAL IS SPUN INTO FILAMENTS WHICH ARE SUBSEQUENTLY SO COOLED THAT THE MAJOR PORTION OF THE POLYMER MATERIAL IS IN CRYSTALLIZED FORM, WHEREUPON THE FILAMENTS ARE HEATED TO A TEMPERATURE CLOSE TO THE MELTING POINT, LED OVER A CONTACT AREA, PENUMATICALLY STRETCHED AND SPREAD ON A CONVEYING SURFACE.