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Tanacid Acid Dyes

Tanacid Acid Dyes
Tanacid Acid Dyes
Product Code : ad25
Product Description

 Tanacid Acid Dyes

TANACID ACID DYES are the selected range of dyestutfs suitable for dyeing on pure wool. The various dyes in the shade card have been grouped mainly according to their exhaustion behaviour, colour fastness and other characteristics on wool. The following are the main groups:

a)

TANACID LEVELLING & TPM DYES

The levelling dyes of this group require strongly acid dyebaths employing Sulphuric or Formic acids. The pH of the dyebath is around 2.5-3. The dyes are generally bright with good levelling properties but have moderate wet fastness. The fastness to light varies from moderate to excellent.

The Milling & TPM dyestuffs are dyed in a weakly acid or neutral bath employing a pH around 4-4.5. Acetic acid or Acid liberating salt such as Ammonium sulphate or Acetate are used. The shades obtained are bright with good all round colour fastness properties.

b)

TANACID 1:1 METAL COMPLEX DYES

This group comprises premetallised 1:1 Metal Complex Acid Dyes.

These dyes have excellent level dyeing properties and all round good colour fastness. In view of their outstanding levelling properties, the dyes are eminently suitable for the production of even very pale shades with good colour fastness.

c)

TANACID 1:2 METAL COMPLEX DYES

These dyestutfs are dyed in a neutral or slightly acidic bath employing a pH around 5-7. The dyestuffs have a good degree of penetration, therefore, particularly suitable for the dyeing tightly woven goods. Also shades obtained have good all round fastness properties.