Wet Spun Linen Warp Tensile Strength and Single End Breakage
Wet spun linen warp breaking strength depends on low strength CV and elastic sizing film to resist cyclic shed tension and prevent single end loom stops.
Splicing Strength
Join Integrity
Tensile measurement determines the force required to break a yarn at the point where two ends have been joined without a knot. Pneumatic or mechanical splicers use air blasts to entangle the fibers of the lead and tail ends to create a smooth transition. High splicing strength is necessary to prevent the yarn from pulling apart during the high tension phases of warping and weaving.
This value is usually expressed as a percentage of the original yarn strength and must meet strict minimums for industrial use.
Operational Impact
Moisture levels and fiber length significantly influence the ability of the flax to form a secure bond during the splicing operation. When the splicing strength is too low, the loom stops frequently and reduces the overall efficiency of the weaving shed. Technicians adjust the air pressure and the duration of the blast to optimize the entanglement for different yarn counts.
Quality Audit
Testing involves pulling the spliced sample on a tensiometer until it fails and recording the peak load. A successful join exhibits a splicing strength that allows it to pass through the eye of a heald wire or the gap in a reed without snagging. Mills track these results to ensure that the yarn remains durable enough for the rigorous demands of a high speed weaving environment.
Consistent joints are the hallmark of a high quality flax spinning operation.