The utility model belongs to the field of
dyeing machines, and particularly relates to an alkali-amount-reducing
dyeing machine for a
polyester-cotton blended fabric
dyeing process, which comprises a dyeing
machine body. A bottom plate is fixedly connected to the bottom of the dyeing
machine body, a support is fixedly connected to the edge of the top of the bottom plate, a mixing
assembly is fixedly connected to the top of the support, a supporting plate is fixedly connected to the top of the bottom plate, and a pretreatment
assembly is connected to the surface of the supporting plate in a penetrating mode. Through the structural arrangement of the mixing
assembly, when a
processing worker carries out alkali
reduction treatment on a coloring agent, a neutralizing solution is added into the coloring agent in a mixing
barrel, then the
processing worker electrifies a
servo motor A, so that a transmission rod A drives a stirring rod to rotate, the
reaction speed between the coloring agent and the neutralizing solution is increased, and in the process, the neutralizing solution is added into the coloring agent; the ph tester body and the
test probe continuously monitor the ph value of the dyeing agent through the wire, so that the alkali-amount-reduced dyeing machine can accelerate the
neutralization of the dyeing solution and continuously measure the ph value in the
neutralization process.