Classification of Disperse Dyes | Chemical Groups in Disperse Dyes | Commercial Names of Disperse Dyes

Introduction:
In previous article, we have learnt about definition, history and properties of disperse dyes. In this article, we will learn about classification and commercial names of disperse dye.
Classification of Disperse Dyes
Classification of Disperse Dyes
 
According to Chemical Structure:
According to chemical structure there are following types of disperse dyes:
  1. Nitro Dyes
  2. Amino Ketone dyes
  3. Anthraquinonoid dyes
  4. Mono azo dyes
  5. Di- azo dyes
According to Fastness Property:
According to fastness property there are following 4 types of disperse dyes:
  1. Group A: These dyes have excellent dyeing properties and good fastness properties.
  2. Group B: These dyes are excellent in high temperature and for carrier dyeing with moderate fastness.
  3. Group C: These dyes are moderate for carrier and high temperature dyeing with higher fastness property than group B dyes.
  4. Group D: These dyes are of excellent fastness to heat but for dyeing properties on carrier method.
According to Energy Requirement:
According to energy required for dyeing there are following 3 types of disperse dyes:
  1. Low energy dyes: These dyes are used to dye with carrier. For dyeing 77°C temperature is required. They have extremely poor resistance to sublimation.
  2. Medium energy dyes: These dyes are used to dye mostly in between temperature 104°C-110°C which provides better sublimation fastness than that of low energy dyes.
  3. High energy dyes: These dyes are used to dye at temperature above 129°C and are suitable for continuous dyeing. They provide all round fastness properties.
Chemical Groups In Disperse Dyes
The percentage of chemical groups present in disperse dyes are as below:
  • Mono azo dyes →→→→→→→50%
  • Anthraquinonoid dyes →→→→→25%
  • Diazo dyes →→→→→→→→→→10%
  • Methyne dyes →→→→→→→→→  03%
  • Styryl dyes →→→→→→→→→→  03%
  • Acrylene benzimidazol →→→→→ 03%
  • Quinonaphthalon dyes →→→→→ 03%
  • Amino naphthyl amide→→→→→ 01%
  • Napthoquinone imine →→→→→ 01%
  • Nitro disperse dyes →→→→→→ 01%
........................................................................
              Total →→→→→→ 100%

Trade Names Of Disperse Dyes
Name of dye
Manufacturer
Origin
Foron
Sandoz
Switzerland
Terasil
Ciba-Geigy
Switzerland
Dispersol
ICI
UK
Samaron
Hoechst
Germany
SRA
British Celanese Ltd.
UK
Setile
ACNA
Italy
 
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