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Flow Chart of Shade Checking During Dyeing

Flow Chart of Shade Checking During Dyeing
Rana Sohel
Executive Engineer
Sunman Textile Mills Ltd. Chittagong
Cell: +8801912-420118
Email: rsohel07tex@gmail.com



Shade check :
The shade achieved is to be checked several times while in process & at finished state to ensure the customers demand under recommended light source. Generally the shade is checked at the following stage:
  • After dyeing
  • After drying
  • After trial for finishing
  • After finishing
For this the following equipments are used :

1. Verivide light box
Manufacturer: Cundy building , frog island Origin : England

2. Light Source :
  • D-65 ( artificial day light )
  • TL-84 ( Shop light )
  • F ( florescent light )
  • UV ( Ultraviolet Blue light )
Light box for shade checking
Light box for shade checking
Flow Chart of Shade Checking During Dyeing
During dyeing period in QC there is a shade matching sequence:

Scoured sample

Enzyme sample

Salt Sample

Soda sample (after 10 min)

BD sample ( 60▫C × 20 min)

Normal hot sample

Acetic acid sample

Chemical hot sample

ECO sample

Softener sample