抄録
Ungripped fibre separation in sliver tensile deformation is investigated in order to get some basic information about the behavior of floating fibres in roller drafting.
The separation behavior is determined by two frictional forces: One is generated from the fibres gripped by the fixed end and the other is by the moving end. C(x), which means the balance of the two forces, can be used as a measure for the ungripped fibre behavior. When C(x)=0, x gives the separation point.
Separation point is influenced by the ratio of the numbers of fibres gripped by fixed end and moving end. With the increase in this ratio, the separation point shifts to the moving end. The separation point is also much influenced by the sliver density, which is a very important factor in the roller drafting. The estimated values of separation points show close agreement with experimental ones for examined slivers.
