Patent ID: 7454816
Filing Date: 2008-11-25
Classification: D01G,Y10T

Abstract:
1. An apparatus for stretch breaking a fiber comprising continuous filaments, discontinuous filaments or a combination thereof, wherein the apparatus comprises (a) a first break zone and a second break zone, wherein the first break zone has a length L 1 , the second break zone has a length L 2 , and 0.6 L 1 ≧L 2 ≧0.2 L 1 ; (b) a first roll set that imparts to the fiber a speed D 1 in the first break zone, and a second roll set that imparts to the fiber a speed D 2 in the second break zone, wherein (D 2 −1)/(D 1 ·1)≧0.15; and (c) and a consolidation zone.