Mass Balance Reconciliation for Long Line Flax in Chinese Wet Spinning
Reconciling wet-spun long line flax demands subtracting hot-bath pectin extraction loss and comb waste from certified fiber transaction receipts.
Greige Linen Yarn
Fibre Character
Natural spun thread that has not undergone bleaching or dyeing acts as the base material for loom state weaving. Because it contains the waxes and pectins inherent to the flax plant, greige linen yarn possesses the full tensile strength required for high speed warp preparation. This material is typically yellowish or silver grey depending on whether the dew retting occurred in a damp or dry climate.
Mill Treatment
Spinning this thread involves drafting the hackled flax through a series of rollers before twisting it on a ring or rotor frame. Because greige linen yarn retains its natural impurities, it must be treated with a sizing agent to prevent the individual fibres from fraying during the weaving cycle. The yarn is wound onto cones or hanks for transport to the weaving shed where it is checked for consistency in diameter and twist per inch.
This specific state is preferred by mills that want to control the final colour through their own proprietary dyeing and finishing systems.
Quality Limit
Grading the material concludes once the yarn is scoured to remove the sizing and natural oils. Variations in the shade of greige linen yarn are expected within a single lot, as the biological nature of the flax crop prevents perfect uniformity across different harvests or retting fields.