Denim Dyeing

Indigo Rope Dyeing Oxidation & Immersion Calculator

Ring dyeing is won in the skying passage, not the vat. Short the oxidation and the next dip strips what the last one deposited.

Range Layout
m/min
m
no.
m
Chemistry Vat
s
g/L

Oxidation Adequacy

— %

Skying time available against the time the dye needs

Dip & Sky Sequence

Immersion per Dip
— s
Total Immersion
— s
Skying per Dip
— s
Total Skying
— s
Total Time in Range
— s
Cumulative Indigo Offered
— g/L

Below 100% adequacy the rope enters the next vat still partly in the leuco form, which reduces build-up and shifts the shade green. Raising the speed shortens skying and immersion together — lengthen the skying passage or add a dip instead.

Indigo Rope Dyeing Oxidation & Immersion Calculator — free, with the formula and a worked example, at Textile School.