Abstract: An improved jet dyeing machine incorporating various sizes of interchangeable jets for treating textile material preferably short lengths of full-width textile material in which the position of the jet device used to circulate the textile material through the jet dyeing machine and through the treating liquor held therein is movable with respect to the surface level of the dye liquor contained within the machine. At least a portion of the machine enclosing the jet device is comprised of transparent material so that the area on each side of the jet device is observable and means are provided for exteriorly adjusting the jet device. Thus, it is possible to observe the action of the jet as the position of the jet device is moved with respect to the level of the dye liquor within the machine and as the operating characteristics of the jet device are adjusted.The outside perimeter of the unit is partitioned or enclosed so it eliminates the need for a separate heat exchanger.

Abstract: Apparatus for thermosol dyeing polyesters where the thermosoling is accomplished by a two-zone infrared oven having multiple infrared quartz rods and employing at least two radiometers to control the temperature followed by an immediate quenching step, all while the polyester is still under tension.