Flat Yarn Cohesion Testing for Weaving Suitability
topic
Flat filament yarn cohesion testing uses standardised abrasion tests including the wire brush abrasion test and the ceramic pin rubbing test per BISFA or customer-specific methods to assess whether the interlace level of flat filament yarns provides adequate resistance to fibre separation during heddle and reed contact in weaving, with pass-fail criteria relating abrasion-induced filament separation to the weaving loom stop rate observed in production trials.
Role
Provides the pre-weaving quality assessment of flat filament yarn cohesion that predicts weaving performance without requiring actual loom trial, enabling incoming yarn quality evaluation at the warping or sizing stage before investment in beam preparation, with abrasion cohesion test results being the primary specification parameter for flat filament warp yarn acceptance in weaving mills where excessive filament separation causes unsustainable loom stop rates.