Page 78 - Shawl Weaving Artisan - TT

Fig 2 • Weft mixing motion: This helps to insert various
colored weft yarn into the same fabric for check
and stripe effect.
• Feeler motion: This motion helps to identify the
presence of weft yarn on pirn.
• Break motion: This is a mechanism to stop the
loom when weft yarn breaks.
• Weft replacement motion: This motion helps to
provide uninterrupted filling insertion by changing
the depleted to a full package.
All auxiliary motions are tightly synchronized with the
primary weaving actions. For instance, as the shed is
3 Auxiliary motions: Auxiliary motions in a weaving created for the picking phase, the let-off mechanism
machine refer to the set of supportive, non-primary simultaneously supplies fresh, tensioned warp yarns
movements that work in concert with the main while the take-up mechanism manages the fabric roll.
weaving actions (shedding, picking, and beating-up) The reed’s battening action follows each weft insertion,
to ensure a smooth, continuous, and high-quality compacting the fabric before the cycle repeats. In systems
fabric production. These motions, though not directly with complex patterning, the additional motions provided
responsible for interlacing the threads, are crucial by dobby or jacquard components are interlaced with
for controlling tension, advancing materials, and the regular cycle, creating motifs with precision. Modern
synchronizing the overall process looms often integrate these motions using computer
These motions are added to a loom to obtain high controls and sensors, ensuring that each auxiliary
function is executed with perfect timing. This integration
productivity and good quality of fabric. This motion not only improves productivity but also broadens creative
is useful for production of fabric but not essential. possibilities, marrying traditional mechanical ingenuity
Auxiliary Motions are Classified into:
with advanced digital precision.
• Warp stop motion: This motion helps to stop the Each process in weaving plays a crucial role in
loom in case of warp yarn breakage or extensively determining the quality, texture, and durability of the
loosened warp yarn.
finished fabric. For instance, inconsistent warping can
• Weft stop motion: This motion helps to stop the lead to fabric distortion, while poor shedding might
loom in case of Weft yarn breakage or run-out of result in misaligned patterns. The careful balance and
the pirn (Weft Package). coordination of all these steps not only produce various
• Warp protector motion: This motion protects the fabric textures (such as plain, twill, satin, and more) but
warp yarns by stopping the loom when shuttle fails also allow for innovations in design and efficiency in
to reach the other end of the loom. production.

68 Textile & Handloom: Shawl Weaving Artisan : (NSQF - 2024) R.T. Ex.No 1.5.39