Classification of Dyes | Textile Dyeing Process Flow Chart

What is Dyeing in Textile Wet Processing?
Dyeing is the process of imparting color to the textile fabric using chemical dyes called dyestuff in the aqueous medium. The dyestuff are capable of reacting and combining with the textile fiber molecule usually when in a water solution and usually with other auxiliary chemicals to enhance the process.

Textile dyeing process
Textile dyeing process 
In the actual process, the water dye, chemicals and textile brought together for a period ranging from several minutes to several hours which are totally dependent upon the fibers being dyed and types of dye being used.

Types of Dye Used in Textile Dyeing:
There are so many dyes are used in textile wet processing sector. Those are in the below:
  1. Acid Dye,
  2. Natural Dye,
  3. Premetallized Dye,
  4. Metallized Dye,
  5. Pigment Dye,
  6. Disperse Dye,
  7. Macromolecular Dye,
  8. Sulfur Dye,
  9. Azo Dye,
  10. Developed Dye,
  11. Basic Dye,
  12. Synthetic Dye,
  13. Direct Dye,
  14. Mordant Dye,
  15. Vat Dye,
  16. Reactive Dye,
  17. Napthol Dye,
  18. Aniline Dye,
  19. Anthraquinone Dye.
Flow Chart of Textile Wet Processing or Dyeing:
The below process chart have to maintain to dye the fabric in textile industry.

Greige fabric received from the weaving factory
Fabric inspection process
Stitching process
Brushing process
Croping process
Singeing process
↓ 
De-sizing process
↓ 
Scouring process
↓ 
Bleaching process
Souring process
 
Washing process
Drying process
 
Mercerizing process
↓ 
Dyeing process
Fixing process or Curing process
 
After treatment process
Finishing process
Bailing process

Textile Dyeing Methods:
At first, the greige fabric is permitted pretreatment process to remove size materials, natural impurities and natural color make it suitable for dyeing. All the processes before dyeing include de-sizing process, scouring process and bleaching process. After completing these processes, finally the fabric is dyed by using the required dyes as per desired shade which is approved by the buyer. After that, dyed fabric should be washed and dried in the dryer.

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