Exhaust Dyeing Process

••• Tuayai/iStock/GettyImages

Exhaust dyeing also is known as batch, or discontinuous, dyeing. It is the process used for most commercial fabric dyeing.

Dyeing

Essentially, the process involves loading fabric into a bath, originally known as a batch, and allowing it come into equilibrium with a solution, or suspension, of dye. Exhaust dyeing is the ability of the molecules to move from the solution onto the fabric fibers (substantivity). The substantivity of a dye can be influenced by temperature or additives, such as salt.

Rinsing

The exhaust dyeing process can take anywhere from a few minutes to a few hours. When the fabric has absorbed, or fixed, as much dye as it can, the bath is emptied and the fabric is rinsed to remove any excess dyestuff.

Specific Liquor Ratio

An important concept in exhaust dyeing is what is known as the specific liquor ratio. This describes the ratio of the mass of the fabric to the volume of the dye bath and determines not only the depth of color obtained, but also the environmental impact of the process.

Related Articles

How to Calculate Solubilities
The Uses of Volumetric Analysis
Homemade Clear Liquid Plastic
The Properties of Nitrocellulose
How to Regenerate Activated Charcoal
The Common Uses for Tartaric Acid
How to Make Wood Alcohol Through Distillation
How to Make a 1% Sucrose Solution
Science Fair Ideas About Which Fabric Absorbs the Most...
How to Dye Crystals
How to Make Your Own Styrofoam Formula
What Is Anhydrous Diethyl Ether?
What is Ethanolic Potassium Hydroxide?
How Is Synthetic Camphor Made?
How to Convert GPM to Cooling Rate in Tons
Steam Distillation vs. Simple Distillation
How to Make a Sodium Silicate Solution
How to Separate a Mixture of Sugar & Water
How to Make Cellulose Sponges
How to Extract Pure Caffeine From Coffee

Dont Go!

We Have More Great Sciencing Articles!