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Flow Chart of Reduction Cleaning in Polyester Dyeing

Flow Chart of Reduction Cleaning in Polyester Dyeing
Rana Sohel
Executive Engineer
Sunman Textile Mills Ltd. Chittagong
Cell: +8801912-420118
Email: rsohel07tex@gmail.com



Reduction Cleaning:
Reduction cleaning is used for destroying and removing the disperse dye deposited on polyester fibre. Because of large wastage of water, energy and time due to the rinses necessary to remove reducing agent. Highly polluting due to the high conductivity and COD values produced. Reduction clearing is done in polyester fabric dyeing. Here flowchart of reduction cleaning or clearing in polyester dyeing is given below.
Reduction Cleaning in Polyester Dyeing
Flow Chart of Reduction Cleaning/Clearing in Polyester Dyeing

Reduction clearing chemical is added at 800C & run for 30 min.

Drain

Water filling

Acetic Acid is added at 800C & run for 30 min

Drain

Washing is done

Unload the fabric