Fibre Classification
Primary processed bast materials constitute scutched long flax when individual stalks retain parallel alignment after the woody shive removal phase. Mechanical decortication separates the outer stem tissue from the interior core through high velocity bladed rotors. This procedure preserves the full length of the strands while stripping away residual vegetable matter.
Manufacturers define this stage as the critical transition from field straw to a format suitable for industrial fine spinning operations.
Processing Verification
Quality control protocols within Chinese production facilities audit batches for uniformity in strand length and diameter consistency. Technicians inspect the output from scutched long flax against baseline reference samples provided by the spinning mill to ensure downstream performance. A deviation in moisture content or residual shive count triggers an immediate adjustment of the rotor speed or blade gap settings.
Data collected at this terminal point of the scutching line populates the production log for every bale marked for international export.
Grading Protocol
Technical standards for such raw output separate long parallel fibres from the secondary byproducts like tow which result from tangled or broken strands. Market acceptance criteria demand that scutched long flax remains free from knots or excessive mineral contaminants to prevent blockages during subsequent drawing and roving. Suppliers guarantee the stability of these bundles through standard atmospheric conditioning before weight measurement occurs.
Consistent supply specifications determine the mechanical limits of the resultant yarn strength in finished woven textiles.
