Weave Density
The physical count of warp and filling yarn ends in a given square unit of unfinished cloth determines the structural mass of flax textiles exiting a Chinese loom. When greige density drops below the buyer acceptance threshold during loom state inspection, structural failure during wet finishing becomes certain. Flax spinning mills record this count on production logs before export bundles dispatch from mills along the Yangtze basin.
Yarn Tension
Loom operators maintain strict control over warp beam weights to keep structural compactness uniform throughout the weaving run. Variations in relative humidity inside the production floor alter moisture absorption within flax yarns, causing natural fiber swelling that shifts the final count. Mill standards demand a tight warp setup to prevent reed marks from forming across the cloth face, whereas purchase orders usually permit a slight tolerance band around the specified end count.
Auditors measure finished dimensions against the original loom sheet to verify that moisture removal during boiling did not distort the intended structural mass.
Export Grade
Overseas buyers rely on this numerical measure to separate exportable yardage from mill seconds before any chemical treatment begins. Exceeding the maximum structural limit causes excessive stiffness after alkali boiling, while falling below the minimum leaves the fabric too thin for garment construction. Quality control inspectors verify the recorded counts against contractual specifications before issuing the final shipping clearance documentation.
