Effect of back zone draft on physical properties of segment colored cotton yarn with constant linear density

Segment colored yarn is a kind of fancy yarn whose color changes regularly segment-by-segment in yarn length direction.The present processing technology inevitably produces slubby yarn effect.Therefore this paper employed a modified draft system of ring spinning machine to produce segment colored cotton yarn with constant linear density but component and color changing segment-by-segment.The effects of segment time and mass ratio of two components within a given segment time on the properties of the formed yarn were investigated.The results indicated that segment colored yarn with constant linear density and good quality can be produced by proper control of back zone draft process.