Auditing Mass Balance Discrepancies in High Guard Hair Camel and Cashmere Batch Processing
Auditing mass balance in camel and cashmere dehairing requires converting all stream weights to oven-dry mass plus stream-specific standard regain.
High Guard Hair Fleece
Coarse Structure
Raw animal hair coverings contain a double coat architecture marked by a dense layer of thick, stiff outer fibres. Cashmere and alpaca sorting classifications flag high guard hair fleece as a raw material input that requires extensive mechanical dehairing before spinning. Structural stiffness in coarse guard hairs prevents soft hand feel in fine apparel textiles, causing prickle sensations against skin.
The classification stops applying once dehairing machinery reduces coarse hair content below two percent by weight.
Sorting Process
Fleeces harvested from primitive or mountain animal breeds exhibit extreme variations in fibre diameter between soft underdown and stiff outer hair. Processing mills measure high guard hair fleece to determine expected processing waste, since non spinnable guard hairs must be separated completely during carding and dehairing operations. Coarse guard hairs feature continuous medulla structures that resist dye penetration, causing visible white flecks in finished dark fabrics if left inside yarn blends.
Dehairing Yield
Specialized dehairing equipment uses air classification and carding cylinders to separate soft down from coarse fibers. Working with high guard hair fleece increases mechanical waste factors, driving up processing costs per kilogram of usable fine fibre.
Apparel Suitability
Dehaired fibre lots undergo microscopic analysis to count residual guard hairs per gram of clean material. Fiber lots containing high guard hair fleece proportion levels are redirected into durable outer garments, coarse carpet yarns or technical felts.