Reed Marks and Starting Marks Read Back to the Loom
Greige reed marks and starting marks map directly to reed wire spacing and loom stoppage dynamics, requiring electronic let-off adjustment to eliminate defects.
Fabric Fell Position
Loom Alignment
The boundary line in a weaving machine where the newly inserted weft thread is beaten by the reed against the already woven cloth determines the fabric structure. Maintaining a stable fabric fell position is essential for preventing structural defects such as thick or thin bars in the finished linen. If this line shifts during loom stoppages, the tension balance is disrupted, which causes irregular pick spacing.
Weaving operators adjust the let-off and take-up mechanisms to control this critical boundary.
Tension Control
When the loom stops for yarn repair, warp yarn relaxation occurs and pulls the woven cloth edge away from its optimal location. Upon restarting, the beaten-up weft thread either overlaps with previous threads or leaves a gap, which creates a visible fabric defect. Automated loom start-up algorithms compensate for this relaxation by moving the warp and fabric before the first pick is inserted.
This precise mechanical correction prevents start-up marks in heavy linen fabrics where yarn stiffness is high. Correct adjustment of the restart tension ensures a uniform appearance across the entire length of the woven roll.
Weave Uniformity
Variations in this boundary also affect the interlacing angle and the density of the woven structure. Consistent position monitoring prevents long-term density drift during continuous high-speed weaving runs. This mechanical stability directly improves the quality grading of the finished cloth.