Standardized Laboratory Verification of Fabric Bending Hysteresis and Crimp Balance
Standardized testing of flexural hysteresis and crimp balance isolates structural yarn friction, securing dimensional stability and reducing garment scrap.
Mounting Tension
Warp Alignment
Mechanical force applied to warp yarns during the dressing of the loom beam ensures uniform yarn length and spacing. In fabric production, mounting tension dictates the stretch behavior and density of the sheet of yarn before the insertion of the weft. This force must be controlled to prevent yarn breakage during the high-speed operation of the loom.
The level of tension is adjusted based on the tensile strength of the linen yarn.
Force Control
Excessively high force stretches the linen yarns beyond their elastic limit, resulting in frequent stoppages due to warp breaks. In contrast, low mounting tension causes yarn sagging, which leads to tangled sheds and defects in the finished cloth. Technicians use electronic tension sensors to measure the force on individual yarn groups across the width of the beam.
These adjustments are critical when handling wet-spun linen yarns, which have low elasticity and require precise force management to maintain consistent fabric density.
Mechanical Balance
Loom operators adjust the friction brakes on the warp beam to maintain stable force as the yarn runs out. This setting is recorded on the loom sheet for future production runs. Consistent mounting tension minimizes fabric defects during high-speed production.