Beamed yarn half dip-dyeing suction space dye device and method

The invention provides a beamed yarn half dip-dyeing suction space dye device and method. The beamed yarn half dip-dyeing suction space dye device is composed of a vacuumizing system, a suction system and a circulating system. The vacuumizing system comprises a vacuum tank and a vacuum pump used for vacuumizing the vacuum tank. The suction system comprises a dye tank, a dye pillar is arranged inside the dye tank, and one or more wrap beams are connected to the dye pillar in a sleeved mode. The circulating system comprises a liquid storage tank and a material sucking pump is arranged at one end of the liquid storage tank. A first pipeline on the vacuum tank is connected with the dye pillar, a second pipeline at the bottom end of the vacuum tank is connected with the liquid storage tank, and a third pipeline at one side of the liquid storage tank is connected with the dye tank through the material sucking pump. The beamed yarn half dip-dyeing suction space dye method by utilizing the device comprises the steps of barrel looseness, cage loading, mixing of dye liquid, suction and space dye, cage unloading, warp beam wrapping, cool stacking and postprocessing.