Calculating Commercial Mass Regain Adjustments for Dehaired Specialty Animal Fibres
Commercial mass regain adjustments recalculate dehaired specialty fibre billing weight by converting net scale mass to clean dry keratin plus official allowances.
Alpaca Fibre Testing
Fineness Assessment
Laboratory analysis of physical fleece parameters establishes the commercial grade and processing performance of raw animal coats. Standardised alpaca fibre testing measures mean fibre diameter and standard deviation across raw fleeces or scoured tops. Optical fibre diameter analysers calculate these dimensions in micrometres to determine lot uniformity before spinning.
Testing boundaries stop at physical dimension and clean yield verification, excluding chemical residue analysis or fabric performance testing.
Yield Measurement
Commercial transactions require accurate determination of clean fleece content from raw greasy lots. High grease content is absent in camelid fleeces, yet dirt and vegetable matter alter commercial mass. Processing plants calculate clean scoured yield by washing representative core samples to remove soluble matter and insoluble impurities.
Scouring losses dictate the final weight settlement between primary producers and yarn spinners.
Medullation Impact
Hollow and continuous medullated structures within animal fleeces alter thermal insulation and dye absorption behaviour. During processing, medullated fibres resist uniform dye take-up, producing visible shade variations in finished woven or knitted fabrics. Automated optical instruments quantify the percentage of medullated fibres alongside diameter distribution to evaluate yarn appearance potential.
Excessive coarse medullated hair increases fabric prickle factor, reducing tactile comfort in luxury garment applications. Spinners set strict acceptance limits for medullated content based on intended end-use fabric specifications.
Spinning Limit
Fine hair counts determine the maximum yarn count reachable on worsted drafting systems. Finer fibre distributions permit smaller cross-sectional fibre counts in fine yarn structures without sacrificing tensile stability.