Dew-Retted Heilongjiang Flax against Imported Water-Retted Bales
Dew-retted Heilongjiang flax provides cost savings for medium counts, while imported water-retted bales deliver the fineness needed for yarn counts above Nm 50.
Imported Water-Retted Flax
Retting Classification
Moisture exposure during the decay of pectin binds the epidermis to the bast of the stalks before the final mechanical removal of woody shives. Imported water-retted flax signifies a specific raw material batch processed in industrial basins abroad rather than through field-based dew retting. Producers submerge the stems in slow-moving or stagnant tanks to achieve consistent color and fiber separation.
Precise control over water temperature and pH levels minimizes biological damage during the fermentation period. This method results in a cleaner, more uniform golden output preferred for high-value spinning applications.
Processing Protocol
Fiber maturity determines the duration of the immersion cycle within the facility. Imported water-retted flax requires intensive drying after removal from the tanks to prevent mold growth or premature fiber degradation. Technicians verify moisture content before baling to ensure stability throughout ocean transit.
Standard protocols for mill acceptance focus on the tensile strength and the fineness of the strands remaining after scutching. Sorting stations sort the yield by length to maintain consistency for downstream high-speed machinery.
Verification Standard
Quality control teams match the physical characteristics of the arrival against the contract specifications agreed upon before shipment. Importers utilize official laboratory reports to confirm that the water-retted flax contains no excessive residual debris or chemical contaminants. Mill managers compare the performance of these imported stocks against domestic supplies to evaluate batch behavior during carding.
A consistent supply of this fiber remains a requirement for producing consistent yarn quality across multiple production runs.