Effects of Orientation on Fiber Motions in Drafting Zone

Abstract

This is a report on a theoretical and empirical analysis of the effects which fiber orientation of slivers have on fiber motions in the drafting zone. It assumes that each fiber in an ideal sliver has equal fiber orientation and a velocity change point in the drafting zone.
The authors formulated some functions on an ideal sliver to express the relations among the average floating velocity, the average position of velocity change points, the degree of fiber orientation and the quantity of floating fibers; and the relations among the sectional average floating velocities, the distribution of velocity change points, the degree of fiber orientation and the distribution of floating fibers.
Applying these functional relations to measured floating curves on actual slivers, the authors analyzed the effects of fiber orientation on the behavior of floating fibers in the drafting zone.