Dual-axis telecentric imaging and pectin density filtering eliminate cross-sectional ellipticity bias to yield true linear density in high-speed bast testing.
Maintaining residual pectin between 0.8% and 1.4% prevents roving draft collapse while enabling fibre attenuation in wet-spinning ultra-fine linen yarns.
Quantifying residual pectin and protein content via ammonium oxalate extraction and FTIR prevents wet-spinning end-breakage disputes in fine bast lots.
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