Paddle machines consist of a revolving paddle wheel that sits in an open vessel filled with water or a processing liquor. As the wheel turns, the vanes dip down into the bath and cause the water to tumble inside. Socks are forced to move under the vanes, which causes them to tumble in the bath. These simple machines are capable of processing large poundages, are especially useful for scouring and bleaching, and are easy to load and unload. However, they are not the best choice for dyeing, because of the large amounts of water used, the energy needed to heat the water for the dyeing process, poor agitation of the socks, a longer cycle time, and their inability to extract the goods.
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