Investigation of effect on loss of strength and elasticity of different pump rpm in wool fiber dyeing

After dyeing, the fiber undergoes some strength and elasticity loss due to pressure, temperature and chemical exposure. This leads to difficult progress of the fiber along the production line and decrease in yarn quality in the yarn production stages. In this study; The loss of strength and elasticity after dyeing, the penetration of the dyebath into the fiber at the desired level and the unevenness of dyeing were investigated depending on the pump cycles in the dyeing machine during dyeing of the wool fiber. In addition, the change in dyebath pressures and velocities were investigated in the dyeing machine according to the pump cycles in the fiber dyeing machine by performing dyebath flow analysis with the ANSYS program using CFD (Calculated Fluid Dynamics) method. It was seen that the increase of the pump revolution increased the loss of strength and elasticity of the fiber but did not affect the homogeneity due to the pressure difference in the inner tank of the dyeing machine.