Abstract:
The warping process is one of the weaving preparation
processes to produce weaver’s beams which uses on weaving
machines to produce grey fabrics. In sectional warping several
hundreds of yarn from supply packages placed on a creel are
wound onto a sectional warping drum as sections and then
beaming off all warp yarns from the drum to the warper's beam,
which is used for fabric production with or without the subsequent
process known as sizing. The uniform and even yarn tension in
warping process is vital to produce high quality fabrics on looms
with high efficiency. The authors attempted to theoretically
interpret in terms of mathematical modeling the warp yarn tension
in the yarn path of the creel with due consideration to various
parameters in sectional warping. Further theoretically model the
warp tension variation according to the geometrical position of the
package on a sectional warping creel. This paper reports a study of
tension variation of cotton yarn unwinding from the supply
package up to the exit point of the creel of a Kakinoki sectional
warping machine. Authors have developed a mathematical model
to analyze tension variation within the warping creel for the
packages with variable diameters at different positions. Based on
the developed mathematical model, tension was calculated at
various places along the yarn path.
