O o d h e a d p u b L i s h I n g L i m I t e d

5.2
Advances in yarn preparation
The yarn preparation-to-weaving stage is evolving all the time. By eliminating
abnormalities, defects and irregularities in yarns, and by monitoring every
single thread during the preparation of the warp and wefts, the yarn preparation
step creates the conditions for optimal use, on the loom, of the wide range of
yarns used in woollen and worsted weaving.
Furthermore, one of the most important demands in weaving today is
complete utilisation of the production capacity of the weaving room with
least time being lost in changing when a weaving machine runs out of warp.
Each warp change results inevitably in machine down-time and the associated
loss of production. Weaving preparation, positioned between warp productions
and weaving mill, plays an important role in minimising the machine down-
time. It includes operations such as leasing, drawing in, tying, dropper pinning
and quick style changing.