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Home » Dyestuff » Textile Dyes

Textile Dyes

Textile Dyes
Textile Dyes made available by us constitute an important segment of whole business in the field of specialty chemicals. The dyes used by textile industry currently are synthetic and are derived from two sources:
  • Coal tar
  • Petroleum-based intermediates

These dyes are marketed in forms of:
  • Powders
  • Granules
  • Pastes
  • Liquid dispersions

With the concentration of active ingredients typically ranging from 20 to 80 percent, these are characterized as new range of dyes and are developed for matching up with the requirements of:
  • New technology
  • New kinds of fabrics
  • Detergents
  • Advances in dyeing machinery
  • Overcoming serious environmental concerns posed by some existing dyes

With almost all products subjected to seasonal demand & variations, industrial textiles dyes are developed to meet all new and specific end usage requirements. Further, the fast changing product profile of textile industry right from high-cost cotton textiles to durable & versatile synthetic fibres has also seen a rapid change in the pattern of consumption of these dyes.

Presently, with Polyesters accounting for major part of dye consumption, disperse dyes used in Polyesters are also forecasted to grow at faster pace.

Types of Textile Dyes:
All textile dyes are classified by their generic names and chemical constitutions. This is done by Color Index (C.I.). This is a journal published by Society of Dyers and Colorists (United Kingdom) in association with American Association of Textile Chemists and Colorists (AATC).

Taking general dye chemistry as one of basis for classification, textile dyestuffs is grouped into following categories for easier understanding:
  • Acid Dyes
  • Azoic Dyes
  • Basic Dyes
  • Direct Dyes
  • Disperse Dyes
  • Reactive Dyes
  • Sulphur Dyes
  • Oxidation Dyes
  • Mordant Dyes (Chrome Dyes)
  • Optical / Fluorescent Brightener
  • Solvent Dyes
  • Vat Dyes

Further, for convenience purposes, all above dyes can be clubbed together into three categories namely:
  • Dyes for Cellulose Fibers
  • Dyes for Protein Fibers
  • Dyes for Synthetic Fibers

Percentage of unfixed dye for different dye types and applications:
All dyes are not fixed to fiber during process of dyeing. The percentage of unfixed dyes for different textiles is as shown below in tabular form:
Fibre Dye Type Unfixed dye %
Wool and Nylon Acid dyes/ reactive dyes for wool 07/20/12
Pre-metallised dyes 02/07/12
Cotton and viscose Azoic dyes 05/10/12
Reactive dyes 20-50
Direct dyes 05/20/12
Pigment 1
Vat dyes 05/20/12
Sulphur Dyes 30-40
Polyester Disperse 08/20/12
Acrylic Modified basic 02/03/12

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