Weaving m/c Preparation

To obtain satisfactory weaving performance, it is essential to have not only a correct yarn preparation, but also an efficient organization which permits to have warps available at the right moment, thus avoiding any dead time with style or beam change. All these prerequisites aim at ensuring to the weaving mills a sufficient flexibility and at permitting them to cope promptly with a variable market demand.

Currently several weaving mills have installed weaving machines which enable to perform the quick style change (QSC), leading to a considerable reduction of the waiting time of the machine.The following chart presents the possible alternatives for the preparation of the weaving machine:

 

Changing style
It  means producing a new fabric style,  weaver’s beam changing means going on weaving the same fabric style just replacing the empty beam with a full beam of same type.

Drawing-i

Drawing-in
Drawing in consists of threading the warp yarns through the drop wires, the healds and the reed Depending on the styles of the produced fabrics and on the company’s size, this operation can be carried out manually, by drawing-in workers.





Piecing-up

Piecing-up

The  piecing-up of the warp yarns permits to the weaving mills which are in a position touse it (not many mills at the moment) to simplify and speed up considerably the loom starting operations in case of warps which were drawn-in or tied-up outside the weaving machine. The warp threads are laid into a uniform layer by the brush roller of the piecing-up machine and successively pieced-up between two plastic sheets respectively about 5 cm and 140 cm wide, both covering the whole warp width.