Spectroscopic Fibre Identification and Contamination Detection
topic
Near-infrared and hyperspectral imaging systems on textile production lines identify fibre type composition, contamination particles, and foreign fibre inclusions by their characteristic spectral absorption signatures, detecting polypropylene and other foreign fibres in cotton at concentrations below 50 milligrams per kilogram that would cause fabric defects after dyeing, enabling automatic ejection of contaminated fibre fractions before they enter the spinning process.
Role
Provides non-destructive real-time fibre quality monitoring that detects contamination and composition deviations that would cause dyeing defects and end-product quality failures, with NIR fibre identification being particularly important for cotton processing where polypropylene and polyester contamination from harvest and packaging materials causes persistent white specks in dyed fabrics that are one of the most costly and difficult quality problems in cotton textile production.