Colour and Shade Variation Assessment in Fabric Lots
topic
Lot shade assessment measures spectrophotometric colour coordinates of specimens from defined positions within and between fabric rolls in a dye lot, calculating delta-E colour differences against the standard and between roll positions using CIE 2000 formula, grading shade variation against commercial tolerance limits and sorting rolls into shade groups for garment cutting to avoid within-garment colour banding.
Role
Prevents the costly garment quality failure of visible colour shading differences between fabric panels in assembled garments by identifying and segregating fabric with excessive within-lot colour variation before cutting, enabling garment manufacturers to make informed roll sorting decisions that maintain colour consistency standards for their customers.