Foam Dyeing and Low Liquor Application Systems
topic
Foam dyeing systems apply dye solution as air-blown foam at liquid add-on of 10 to 30 percent versus 65 to 75 percent for conventional padding, reducing dye liquor application volume by 50 to 70 percent and correspondingly reducing drying energy by the lower moisture content applied to the fabric, with foam bubble size, drainage rate, and foam dye concentration control being critical parameters for achieving even dye distribution.
Role
Reduces the energy consumption and effluent generation of continuous dyeing by minimising the water applied to fabric through foam application that concentrates dye in a smaller liquid volume, with foam dyeing providing the largest energy saving available in continuous dyeing through reduced drying energy that represents 40 to 60 percent of total dyeing range energy, while requiring careful foam stability management to maintain application uniformity.
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