Jet Dyeing Machines

Jet dyeing machines are widely used in the textile industry for pre-treatment, dyeing, and post treatment of fabric. The process typically consumes about 30-35% of a plant’s total steam and involves heating, holding and cooling steps. Steam and cooling water are used in a common heat exchanger to heat or cool the liquor.

Traditional management of liquor ratios leads to excessive water addition to the machine, increasing steam required for heating, specific water consumption and effluent loads. Without an effective system to segregate condensate and cooling water, contamination of the condensate occurs, leading to increased TDS and decreased temperature, making it unsuitable for recovery to the boiler feed water tank. Heat from dye liquor is often not effectively recovered as waste heat recovery systems are frequently bypassed due to choking issues, resulting in higher specific energy consumption.

Typical issues plants face in jet dyeing include
– Higher rates of rejection or reprocessing
– Extended batch times
– Higher energy and water consumption
– Reduced heat exchanger uptime