Jacquard Pattern File Design and Electronic Card Setup Specifications
Scale raw raster art to the warp-to-weft sett ratio, map hooks directly to the harness tie plan, and calculate cast-outs under 20% to prevent shed instability.
Bonas Ji
Fiber Grading
Moisture regain measurement evaluates the water content held within the internal capillary structure of raw flax stocks before spinning begins. This specific evaluation protocol establishes the baseline weight for trading dry stalks and determines how much additional water needs spraying onto the material during mechanical hacking. Testing involves drawing small samples from the center of compressed bales and drying those specimens inside a heated oven until weight stabilizes.
Buyers reject any consignment exceeding the standard moisture threshold because wet bundles rot inside storage warehouses before factory machinery can process them. Excess water alters the linear density of spun yarns and creates weak spots that snap during high speed loom operations.
Yarn Tension
Mechanical resistance monitoring controls the physical pulling force applied to linen threads as bobbins unwind onto the warping beam. Factory operators track this tension parameter continuously to prevent the brittle bast fibers from snapping under sudden acceleration loads. High speed cameras watch the moving strands and signal emergency brakes whenever a loose thread starts whipping against neighboring yarn paths.
Mill supervisors check daily calibration logs to verify that pneumatic brakes respond correctly to fluctuating ambient humidity levels inside the spinning hall.
Export Specification
Final inspection documentation records the physical breaking strength and surface hairiness of finished linen bolts before packing them into wooden crates for international shipping. Each batch receives a certificate of compliance detailing thread counts per square centimeter and color fastness ratings against standard washing cycles. Overseas garment makers rely on these verified metrics to bypass destination port customs checks without opening every individual shipping container.
Commercial contracts specify financial penalties when delivered fabric falls below the certified breaking load recorded in the factory shipping ledger.