Structure Determination of Raw Flax Yarns for Warp Preparation
Evaluating raw flax yarn bundle morphology, pectin chemistry, and tensile metrics prevents high-speed warping breaks and protects loom hour efficiency.
Weavers Knot
Yarn Join
A small and secure knot used to join two ends of yarn ensures that the thread can continue through the loom without untying. The weavers knot is the standard knot used in textile mills because it is flat, compact, and less likely to snag on adjacent warp yarns or the reed than other types of joins. This knot is essential for maintaining production efficiency on the weaving floor when a yarn break occurs.
Loom Passability
When a weaver manually ties a weavers knot, the tails of the yarn are trimmed very close to the knot body to ensure it can pass easily through the drop wires and heddle eyes. If the knot is too bulky, it will catch on the reed during the beating phase, which can cause a second yarn breakage and stop the loom again. Automatic knotting machines are often used during warp preparation to tie these knots quickly and uniformly across the entire warp sheet.
This uniform knotting reduces loom downtime and helps maintain a high fabric quality during the subsequent weaving runs.
Tying Method
The knot is formed by crossing the two yarn ends and pulling one through a loop in a specific sequence that locks under tension. It is used on both cotton and linen yarns, though linen requires more care because of its stiff nature. Proper training ensures weavers can tie it rapidly and securely.