Types of Warping :
- Beam/Direct warping
(Grey/Mono colour fabric)
- Sectional/Indirect warping
(Warp patterns: Stripes and Checks)
- Ball warping
(Denim fabric)
Direct warping :
In direct warping, the yarns are withdrawn from the single-end yarn packages on the creel and directly wound on a beam.Direct warping can be used to directly produce the weaver’s beam in a single operation. This is suitable for strong yarns that do not require sizing and when the number of warps on the warp beam is relatively small. This is also called direct beaming. It can also be used to make smaller, intermediate beams called warper’s beams. These smaller beams are combined later at the slashing stage to produce the weaver’s beam. This process is called beaming.
Figure: High speed/Direct warping
Indirect warping :
In Indirect warping, a section beam is produce first. It is also called band warping or drum warping. The section beam is tapered at one end. Warp yarn is wound on the beam in sections, starting with the tapered end of the beam. Each section has multiple ends that are traversed together slowly during winding along the length of the section to form the angle. Due to the geometry of the yarn sections, the last section on the beam will have a tapered end that will make the whole yarn on the beam stable. It is important that each layer on the beam contain the same number of yarns. The same length of yarn is wound on each section. After all the sections on the beam are wound completely, then the yarn on the beam is wound on to a regular beam with flanges, before slashing. This process is called re-beaming.
Figure: Indirect warping
Ball Warping:
Ball Warping is mainly used in manufacturing of denim fabrics. The warp yarns are wound on a ball beam In the form of a tow for indigo dyeing. After the dyeing process, the to wise parated and wound on a beam.This stage is also called long chain beaming.
Figure: Ball warping
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