Liquor Ratio For Dyeing Calculator

Work out liquor ratio for dyeing instantly with clear inputs, formula shown and shareable results.

About Liquor Ratio For Dyeing Calculator

Liquor ratio is bath volume in litres per kilogram of fabric. Running a machine under-loaded raises the effective ratio, wasting water, salt, alkali and steam. The optimal fabric load for a target ratio is machine volume divided by that ratio, which is why full loading is the simplest dyehouse saving available.

Formulas

Liquor ratio

Liquor ratio = bath volume (L) / fabric weight (kg)

Optimal load

Fabric load = machine volume / target liquor ratio

Worked example

With the default values below, Liquor Ratio For Dyeing Calculator returns Actual Liquor Ratio of 8.000. Change any input above and every figure here is recalculated in your browser.

Inputs used

Fabric Weightminimum 0.001 kg: 250 kg
Machine Bath Volumeminimum 0.001 L: 2,000 L
Target Liquor Ratiominimum 0.1 : 1: 6 : 1
Water And Effluent Costminimum 0 per m3: 90 per m3

Results

Actual Liquor Ratio: 8.000
Bath Volume At Target Ratio: 1,500.00
Water Saved At Target Ratio: 500.00
Fabric Load For Target Ratio: 333.33

Step by step

1Values used
2Liquor ratio
3Optimal load
4Actual Liquor Ratio= 8.000
5Bath Volume At Target Ratio= 1,500.00
6Water Saved At Target Ratio= 500.00
7Fabric Load For Target Ratio= 333.33

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax or compounding frequency into account.
Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
Dyehouse water and effluent volumes are usually permitted. Verify consent limits and treatment plant hydraulic capacity before changing loading practice.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Dyehouse water and effluent volumes are usually permitted. Verify consent limits and treatment plant hydraulic capacity before changing loading practice.

Frequently Asked Questions

What liquor ratios do modern machines achieve?

Jet and airflow machines run 4:1 to 8:1, older winches 15:1 to 30:1. Every unit of liquor ratio removed cuts water, salt and heating energy roughly proportionally.

Does a lower ratio change the recipe?

Yes for auxiliaries dosed in g/L — their total mass falls with bath volume, which is exactly the saving. Dye on weight of fibre is unchanged, but exhaustion and levelness behaviour shift, so recipes must be re-optimised.