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Process Flow Chart of Dyeing Lab or Lab Dip Development

Process Flow Chart of Dyeing Lab or Lab Dip Development
Rana Sohel
Executive Engineer
Sunman Textile Mills Ltd. Chittagong
Cell: +8801912-420118
Email: rsohel07tex@gmail.com




Dyeing Lab:
At first dyeing is performed in dyeing lab and then starting for bulk production. Dyeing lab work is called lab dip development. A lab dip is a swatch of fabric test dyed to hit a color standard. Lab dip plays an important role in dyeing process. Bulk dyeing process completely depends on the lab dip. In the lab, lab dip or sample is developed by the textile engineer or technician. Flowchart of lab dip is given below.
Work in dyeing lab
Work in dyeing lab
Flow Chart of Dyeing Lab/Lab Dip Development
 
Receiving standard swatch from the buyer

Determination of sample’s possible color combination by the help of Spectrophotometer or manually

Dispersion by autodoser

Trial dyeing of first recipe

Unload

Normal wash

Hot wash with detergent

Oven drying

Ironing

Shade matching in light box ( If Ok then send to buyer for approval)

If not ok

First correction takes from Spectrophotometer or manually

Dispersion by autodoser

Trial dyeing of first recipe

Unload

Normal wash

Hot wash with detergent

Oven drying

Ironing

Shade matching in light box ( If Ok then send to buyer for approval)

If not ok

Second correction takes from Spectrophotometer or manually

Dispersion by auto doser

Trial dyeing of first recipe

Unload

Normal wash

Hot wash with detergent

Finishing

Hydro

Drying

Compare with standard swatch

If ok

Send for buyer’s approval

Bulk production by considering the buyer’s approved sample as standard