Patent ID: 6248273
Filing Date: 2001-06-19
Classification: D01D,D01F

Abstract:
A spinning cell for dry-spinning spandex comprising:(A) a substantially rectangular, adiabatically controlled shaft;(B) a top plenum in a wall of the shaft for providing a cross-flow of hot inert gas; and(C) a substantially rectangular bar containing groups of spinneret capillaries mounted atop the shaft and having short axis, a long axis, and a nonuniform array of spinneret capillary groups in which a first row and a second row of capillary groups are in staggered relationship to each other, the first row being closer to the top plenum than the second row, wherein the capillary groups in each row deviate from a uniform linear arrangement in that:(i) the first row comprises two more capillary groups than the second row;(ii) the second row is divided into two segments by omitting one capillary group therein adjacent to the short axis of the bar;(iii) at least two of the capillary groups at each end of the first row are offset toward the long axis of the bar;(iv) at least one capillary group at each end of the second row is offset toward the long axis of the bar; and(v) at least one capillary group at each end of the first row is offset toward the short axis of the bar.