fiber transfer and compensation for carding unit of sliver knitting machine

Carding unit of sliver knitting machine draws and transfersfibers to needles. Sliver loses massin this process.This results in that the quality of sliver knitting fabric is below standard.In this paper, a transfer factor was proposed to define the percentage of fiber mass transferred.Based on the transfer factor, a mathematical model that revealed the fiber transfer processes ofcarding unit was built.Then,the mass of a tuft offibers drawn by each needlewas calculated according to the model.Thus, once a fabric was designed, the forecast result is got.Besides, a compensation method was also proposed to eliminate the error between forecast and design result. These results were used in the CAD system of sliver knitting. Itprovided aquantitative method to sliver knitting to replacethe method relied on artificial experience. Keywords:  Carding Unit; Compensation Method; Mathematical Model; Sliver Knitting Machine