9–FIBRE MIGRATION IN JUTE YARN PART II: THE EFFECT OF YARN LINEAR DENSITY AND THE COMPACTNESS OF SLIVER

Abstract

In jute yarn of linear density below 200 tex (6 lb/spy), an increase in linear density tends to have some retarding action on the migration of fibres; the compactness of sliver at the delivery nip of the spinning frame has, however, no significant effect on fibre migration. It appears that the tension mechanism, on which fibre migration in jute yarn mostly depends, requires appreciable openness in the sliver structure before the sliver is twisted.