Colour Pattern Verification in Tied Warps
topic
Colour verification in striped warps after tying uses visual inspection of the warp sheet with the warp spread over an inspection board under uniform lighting, confirming that each coloured end in the new warp is correctly tied to the corresponding coloured end in the old warp and that the stripe repeat colour sequence is maintained across the full warp width, with colour mismatches identified by the visible discontinuity at the knot between differently coloured ends.
Role
Verifies that automatic or manual tying has correctly matched corresponding ends in multi-colour warps where tying errors would produce colour sequence errors in the stripe pattern that would appear as permanent colour defects in the woven fabric repeating at the knot pull-through position, with colour verification being an essential quality check before commencing production after tying of colour-patterned warps to prevent the fabric waste of discovering colour errors after production has begun.