Measurement Device
A motorized mechanical device featuring a collapsible perimeter wheel wraps yarn strands under controlled tension to produce skeins of exact, standard length for linear density testing. Quality control technicians use a skein wrap reel to prepare lea skeins of ninety metres or one hundred twenty yards for yarn count determination. The equipment incorporates tensioning guides and an automatic revolution counter to ensure precise circumference travel during wrapping.
Its operational scope covers spun yarns and continuous filaments, ending where automated single-yarn electronic testers bypass physical skein preparation.
Length Precision
Wheel circumference tolerances dictate the volumetric accuracy of length measurement during testing. Operating the skein wrap reel at steady speeds prevents yarn slippage and maintains uniform wrap tension across the reel perimeter. Collapsible wheel spokes facilitate skein removal without stretching delicate yarn loops.
Mass Determination
Prepared yarn skeins undergo weighing on analytical balances to calculate linear density in tex or denier units. Combining skein wrap reel length control with precision weighing delivers repeatable yarn count verification across spinning mills. Laboratory technicians report average yarn count and skein breaking strength from wrapped leas.
Equipment Standard
Regular mechanical checks confirm reel perimeter dimensions and tensioner alignment. Calibration protocols verify that skein wrap reel revolution counts match exact yarn length delivery requirements. Deviations in reel circumference invalidate yarn count testing compliance.
