B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/541
B29C 59/04 (2006.01) B29C 47/00 (2006.01) B29C 59/00 (2006.01) D01D 5/42 (2006.01) B29C 37/00 (2006.01)
Patent
CA 1054763
ABSTRACT Disclosed herein is a method and apparatus for forming a sheet of extruded deformable polymer with a plurality of longitudinal extending fracture lines along which splitting can occur to sub-divide the sheet into a plurality of tapes or monofilaments, for example. The apparatus includes an elongated embossing roll having circumferentially extending ridges formed on the periphery thereof and a cooperable backing roll for embossing the sheet with the fracture lines. A pressure roll is disposed adjacent to the embossing roll with a nip zone being defined between these two rolls. After the sheet has been embossed it is directed through the nip defined between the embossing roll and the pressure roll so that the sheet is retained under positive pressure against the embossing roll for a predetermined interval. This interval is sufficient for cooling of the sheet to occur so that the fracture lines are thus set. Also included in the disclosure is means for adjusting the positive pressure under which the advancing sheet is urged into engagement with the embossing roll.
235833
Leesona Corporation
Na
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