Ecovat - Modified Liquid Vat Dyes

Ecovat dyes are modified vat dyes, containing carefully controlled amounts of reducing agent in order to obtain best stability in storage and colour yield in use. Since these dyes are pre-reduced, they have substanivity for cellulose and are therefore ready for dyeing, although an addition of extra reducing agent maybe required.

After application to the fibre, the dyestuff is converted back into the water insoluble form by oxidation, similar to vat dyes, which results in dyeing with good fastness to wet treatments.

Salient Features

• Excellent Chlorine fastness
• No dissolution required
• Higher productivity due to shorter dyeing tume
• Good all round fastness properties
• Compatibility with Vat dyes for combination shades in all proportions
• Free from banned amines and compliance with Euro Norms.
• No Sodium Sulphide, Low salt addition, therefore lesser load on effluent treatment

Scope of Application

The good fastness standards of Ecovats make them especially suitable for the following cotton rich textiles.

• Warp denim
• Corduroys
• Apron Fabrics
• Linings
• Outwear poplins
• Sewing thread
• Yarn
• Garments

The dyestuffs are equally suitable for dyeing the cotton components of blends with polyster fibers

General Application Methods

Ecovats are applicable by Exhaust dyeing & Continuous / Semi – continunous dyeing application is followed by oxidation, rinsing and soaping

A. Exhaust method

1. Jigger
2. Winch
3. Cabinet
4. Tank Dyeing

The information and recommendations presented here were compiled with the
utmost care, but cannot be extended to cover every possible case.
They are intended to serve as non binding guidlines and must be adapted to
the prevailing conditions.