Mechanical Failure
Geometric deviation in the metal surface that guides flax fibres during the combing process. When comber plate distortion occurs, the alignment of the pins becomes irregular and results in uneven sliver quality. This physical warping usually stems from heat buildup or mechanical stress during high-volume production.
It leads to the loss of long fibres into the waste pile.
Diagnostic Method
Maintenance check performed using precision feeler gauges or laser scanning to detect minute changes in the flatness of the plate. Technicians monitor comber plate distortion to ensure that the nip between the circular comb and the detaching rollers remains within tolerance. Small deviations cause the flax to bunch or snag, which increases the frequency of machine stoppages.
Regular sanding or replacement of the plate restores the necessary surface uniformity for producing fine yarn. In advanced mills, sensors integrated into the frame alert operators to vibration patterns associated with warping before the defect ruins a batch of roving.
Quality Impact
Process boundary where the irregularity of the fibre path makes the resulting linen unsuitable for high-count fabrics. Excessive comber plate distortion introduces thick and thin spots in the yarn that become visible after weaving. Most quality control protocols require an immediate halt to production if the deviation exceeds 0.05 millimetres.