Why does color variation occur? How does our company address this issue?

Many wonder why dyed products vary in color even with the same raw materials and stable processes. The root cause lies in the filament separation step.Uneven tension on fiber tows leads to compact fibers with poor dye penetration and loose fibers that absorb dye quickly. Slack knots formed during separation also cause inconsistent fiber thickness and bulkiness, disrupting uniform dye adsorption.Tension fluctuations and slack knots result in uneven color uptake across the same batch, leading to color differences. To fix this, we need to stabilize tension in filament separation, minimize slack knots, and maintain uniform fiber structure to control dyeing color difference effectively.