Calculating Greige Fabric Yield from Loom Speed and Sett
Calculate linear greige yield by dividing net picks per hour by pick density, adjusting reed width and warp length for crimp contraction.
Plain Weave Crimp
Geometric Deformation
The permanent undulation of horizontal and vertical yarn sets within a crosshatch pattern determines the physical footprint of the structural intersection. This plain weave crimp quantifies the amount of length consumed by the crossing of filaments over and under their perpendicular counterparts during the loom cycle. Excessive tension at the draw-in point increases the curvature of each strand as it adapts to the perpendicular obstruction.
Higher values result in thicker fabric profiles and reduced tensile strength in the finished material.
Process Documentation
Quality control laboratories record these measurements during the final inspection phase of grey cloth production. The fabric specification sheet identifies the target range for strand deflection according to the density of the flax yarn used in the warp and weft directions. Auditors verify that the data captured at this stage aligns with the requirements stipulated in the procurement agreement for high-grade linens.
Strict adherence to these benchmarks prevents excessive shrinkage when the material undergoes subsequent wet processing or garment construction.
Mechanical Variance
Variations in strand tension across the width of the loom create non-uniformity in the deflection angles that deviate from the design specifications. Minor fluctuations in yarn diameter lead to uneven displacement where the warp contacts the weft, creating defects that remain visible under high magnification. Skilled loom technicians adjust the tensioning hardware on the shuttle to normalize the physical geometry of the intersection points.
Consistent results across every batch depend on the calibration of the let-off motion to maintain steady resistance throughout the entire production run.