During the operation of the fabric dyeing machine, it is considered that some fabrics with a large specific surface area of the fiber usually have a relatively high dyeing rate, and if the control is not good, the dyeing is easy. Therefore, in order to ensure levelness, it is often necessary to control the maximum dyeing amount of the dye in each cycle of the fabric. At this time, according to the fabric characteristics and the dyeing process, the dyeing amount of the dye in each cycle of the fabric can be controlled to ensure the quality of the deep and light colors.
Moreover, the dye used will change the dyeing of the fabric differently. According to the fluid dynamics, the kinematic viscosity of the liquid decreases with the increase of temperature, and the kinematic viscosity of the air increases with the increase of temperature. For airflow dyeing, as the temperature increases, the viscosity of the dye liquor decreases and the viscosity of the gas increases, which is more conducive to breaking the boundary layer of the dye liquor and thinning its thickness, accelerating the dyeing process of the dye, thereby shortening the dyeing process and dyeing time of the dyeing machine.
Moreover, as the kinematic viscosity of the two fluids changes, it provides favorable conditions for improving the working efficiency of the dyeing machine. That is to say, in the case where the circulating air volume is constant (the fan power is increased), the increase in the viscosity of the air increases the traction of the fabric, and the speed of the fabric is increased. Such a change in conditions is more conducive to the uniform dyeing of the fabric by the dye.www.textiledyeingmachines.com