Fine Yarn
Classification of linen yarn by the number of lea per pound determines the fineness and end-use of the spun material. In flax spinning mills, high lea linen refers to yarn or fabric spun with a high count (typically above forty lea), indicating a lightweight yarn of superior grade. This grade is measured on yarn testing systems and documented on the yarn count test report, which serves to verify the batch before export.
Spinning Adjustment
Wet spinning of fine flax fibers requires precise control of temperature and water quality to release the individual cells. The production of high lea linen uses the longest and highest grade flax line fiber to ensure the yarn remains unbroken at such low linear densities. Technicians monitor the water bath temperature to ensure proper pectin softening during the drafting process.
This control is recorded on the wet spinning machine sheet to maintain uniform yarn diameter and minimize thick-thin faults.
Acceptance Standard
Fine fabrics demand strict limits on yarn slubs and irregularities to ensure a smooth finish. Standard buyer criteria for high lea linen fabric restrict thick points to fewer than five per hundred meters. Achieving this standard requires the mill to use electronic yarn clearers during winding.
