Mechanical Insertion Reliability in Dense Plain Weave Wet Spun Linen Fabrics
Insertion reliability in dense wet spun linen depends on size film cohesion and precise unguided rapier trajectory to limit peak tension under 4.5 cN/tex.
Slub Passage
Clearance Aperture
Structural clearances in the loom healds and reed determine the ability of thickened yarn sections to move through the weaving elements without causing a machine stop. Successful slub passage is essential for producing linen fabrics that feature intentional aesthetic irregularities in the weft and warp. If the opening is too narrow, the yarn will catch and break.
Detailed Engineering
Precision engineering of the drop wires and the reed wires allows for the movement of knots and flax shives. During slub passage, the yarn must travel through the eye of the heald without snagging on the metal surface. High speed looms require specifically designed accessories with larger eyes to accommodate the variations found in coarse linen yarns.
Sensors monitor the tension spikes that occur when a thick part of the yarn enters a restricted area. It prevents unnecessary downtime during the weaving of rustic cloth styles.
Quality Standard
Standardized testing of yarn diameter variations helps mills select the appropriate loom parts for each fabric construction. While a slub passage event is normal for many linen grades, it becomes a defect if the yarn thickness exceeds the physical capacity of the machine. Buyers often specify the maximum size of allowable slubs in the contract.
This process ensures the continuous operation of the loom.