Measurement Method
Cellulosic fiber hydrolysis during cellulase treatment causes a measurable reduction in dry fabric weight. Biopolishing mass loss quantifies the percentage of substrate destroyed while removing protruding fiber ends from cotton or lyocell knits. The measurement applies specifically to aqueous enzyme baths where endoglucanases and exoglucanases cleave beta-1,4-glycosidic bonds in amorphous cellulose regions.
It stops applying once chemical baths undergo thermal inactivation above eighty degrees Celsius or when synthetic polymers undergo surface treatment. Accurate calculation relies on oven-dry mass measurements recorded before bath immersion and immediately after thorough rinsing to prevent continued enzymatic attack.
Gravimetric Boundary
Bath temperature and liquor ratio dictate the rate of substrate loss during processing. Excessive biopolishing mass loss weakens the yarn matrix, causing unacceptable drops in bursting strength. Process engineers monitor dry weights to verify that weight reduction remains within specified mill tolerances.
Tensile Limit
Microscopic surface clearing improves pilling resistance by removing fuzzy fibrils that trap lint. When biopolishing mass loss exceeds five percent, individual cotton fibers suffer structural pitting that compromises fabric durability. Dyers balance bath acidity because acid cellulases act aggressively at specific hydrogen ion concentrations.
Mechanical agitation during the wash cycle accelerates surface shear.
Industrial Control
Quality specifications establish physical parameters for strength retention following enzymatic finishing operations. If biopolishing mass loss passes six percent, fabric seam strength drops rapidly, creating defect risks during garment assembly. Laboratory testing requires strict oven-dry weight determination prior to bulk dye lot release.
Commercial contracts enforce financial claim adjustments when mass reduction breaches negotiated targets.
