Fibre Separation
Short-staple residue from carding engines represents comb waste in the processing lines of Chinese flax mills. Mill floors collect this tangled mass beneath combing cylinders during mechanical preparation of line fibre for high-count spinning. Operators measure the batch density and residual dirt content in the material before certifying export bales.
Foreign buyers grade the resulting delivery against contractual cleanliness specifications rather than internal mill thresholds. Spinning masters adjust machine settings when discard volumes fluctuate to maintain uniform sliver weight throughout the drafting zone.
Carding Yield
Mechanical extraction parameters dictate the proportion of usable flax pulled from every raw straw input entering the facility. Heavy cylinder loads generate high quantities of low-grade tow while reducing output speed across the drafting heads. Quality control inspectors record the mass balance daily within official production registers to verify raw material utilization.
Excess discard accumulates rapidly if hackling pins become worn or misaligned during continuous operation. Maintenance crews inspect the pinned segments weekly to prevent excessive fibre breakage inside the combing chamber.
Export Clearance
Shipping agents classify the compressed burls under specific tariff headings for maritime transport to overseas textile manufacturing plants. Customs officials verify the weight certificates attached to each container against physical cargo samples pulled at the dockside terminal. Foreign spinning mills purchase the recovered material for blending into coarse yarn destined for industrial canvas and heavy drapery production.
Final settlement values depend strictly upon laboratory moisture tests performed prior to vessel loading. Comb waste determines the economic viability of flax preparation lines across regional processing facilities.
