Determining Hackled Flax Linear Density through Manual Bundle Sectioning
Manual bundle sectioning isolates true flax fibre linear density by cutting mid-strick segments for gravimetric tex determination prior to spinning.
Drafting Breakage
Process Disruption
Spinning anomalies in linen manufacture arise when flax fibres fail to slide smoothly past one another during the drawing process. This failure, classified as drafting breakage, occurs when excessive tension or fibre entanglement causes the sliver to sever before it can be twisted. Such disruptions stop the spinning frame and require automated rejoining of the fibre stream.
Frequent interruptions lower the efficiency of the entire spinning line and generate short-fibre waste that cannot be easily reclaimed. When the rate of these failures increases, the overall throughput of the mill drops and the cost of producing high-grade linen yarn rises.
Mechanical Control
Calibrated roller settings determine the draft ratio and the pressure applied to the moving sliver. In order to minimize drafting breakage, the distance between the retaining rollers and the drawing rollers must exceed the length of the longest flax fibres in the bundle. If the rollers are set too close together, the longer fibres are gripped by both rollers simultaneously and are snapped by the force of the machine.
Yarn Consequence
Inconsistent yarn strength is the direct outcome of multiple spliced sections in a single spool of yarn. Frequent drafting breakage results in thin spots and thick spots that create an uneven appearance in the final woven linen. Buyers often reject fabric shipments that contain these aesthetic defects.