Wet Processing

Lab Dip & Shade Matching Adjustment Tool

Correct strength first, hue second. Chasing hue on a weak dip wastes lab dips.

Current Recipe What was dyed
% owf
Measurement Against the standard
%
%
dE
dE

Corrected Concentration

— % owf

Scaled to hit the target strength

Correction & Tolerance

Adjustment to Recipe
— %
Change in Dye
— % owf
Delta E over Tolerance
— dE
Delta E as Share of Tolerance
— x

Proportional scaling holds for pale to medium depths. Near saturation the strength response flattens, so a heavy shade needs a smaller correction than the ratio suggests.

Lab Dip & Shade Matching Adjustment Tool — free, with the formula and a worked example, at Textile School.