Fibre Definition
High tenacity bast material extracted from the Boehmeria nivea plant forms the basis of ramie filament. This long-staple product undergoes degumming and spinning into continuous lengths that demonstrate high moisture absorption and structural rigidity. Producers evaluate the quality of this raw input through linear density measurements and tensile strength testing in state-controlled facilities.
The classification separates these continuous strands from short-staple waste fibres during the initial mechanical separation stage.
Trade Specification
Processing protocols demand uniformity in twist per meter to maintain the structural integrity of the yarn during high-speed loom operations. Export quality assessments require inspection of the bale density and the moisture regain percentage to ensure consistency against international shipping benchmarks. Mills document the mechanical break point on a standard test frame to certify the strength of the final supply lot before moving goods into the weaving hall.
Production Boundary
Grading criteria differentiate individual filament lots from standard spun yarn by assessing the absence of splice points and the total length of the continuous strand. Buyers reject batches that exhibit uneven diameter variation above the defined threshold in the supply contract because deviations interfere with the subsequent bleaching and dyeing stability. Proper alignment of these strands across the warp determines the tensile load capacity of the finished cloth.