Abstract
The general relationship between [Kv] and the fiber properties (kind of fibers, fiber length) and also the mechanical factors (carding rollers diameters, acting angles of garnet wire) is discussed. Kv means the value of the rate of two carding roller surface velocities. When the value of Kv is increased, on the point of Kv= [Kv], the fraction of fiber transfer between two carding rollers suddenly decreases.
If the previous conclusion in which the critical angle [Δφ] is independent of the fiber length, the kind of fibers and the acting angles of garnet wire, holds for every mechanical factor, the above mentioned relationship is able to obtain from Eq. (1), (2) & (3). these results summerize in Fig. 2, 3 & 4.
The experimental results by several mechanical factors of machine agree whith the calculated values. From these facts, the critical angle [Δφ] is assumed to be about -20° and is not only independent on the fiber properties but also mechanical factors.
Although Fig. 2, 3 & 4 seem to be definately clear method to express the characteristics of fiber transfer between two carding rollers, it should be considered that the obtainable values of [Kv] are confined by the peculiarity of fiber transfer, as is evident from experience.
