Quantifying Loom Downtime Cost Recovery from Friction Defect Induced Warp Breaks
Excess warp breaks from friction defects add unabsorbed loom downtime costs recoverable through measured stop logging and laboratory coefficient of friction proof.
ISO 8295
Testing Protocol
Formal testing procedure used for determining the starting and sliding friction of materials ensures uniform surface quality across production batches. While developed for plastic films, iso 8295 provides the methodology for measuring the static and kinetic friction coefficients of smooth linen fabrics and coated textiles. This document defines the exact speed of the sled and the weight of the load used during the measurement.
Surface Analysis
Specimens are mounted on a flat horizontal plane and a weighted sled is pulled across the surface at a constant velocity. The force required to initiate movement provides the static value, while the force needed to maintain motion gives the kinetic result. Data from iso 8295 allows mill managers to compare the slip properties of different finishing treatments or calendering processes.
The environment must be strictly controlled at twenty-three degrees Celsius and fifty percent relative humidity to ensure the reproducibility of the results. Testing covers both the warp and weft directions to account for the directional texture of the weave. Accurate measurements help in predicting how the fabric will perform when it is layered for automated cutting or stacked in shipping containers.
Compliance Requirement
Compliance with this international standard is often a requirement in technical textile contracts for garment manufacturers. The test identifies if the fabric is too slippery for stable handling or too resistive for smooth feeding through sewing machines. Adherence to these protocols ensures that the physical properties of the linen meet the buyer’s technical specifications.