Yarn Inspection and Quality Grading Systems
topic
Automated yarn inspection systems use laser or capacitance sensors measuring yarn cross-section at high speed to detect and classify thick places, thin places, neps, and foreign fibre contamination per unit length, with statistical analysis generating quality grade classifications against industry USTER statistics percentile benchmarks that enable objective yarn quality comparison and specification setting for customer quality requirement compliance verification.
Role
Provides objective yarn quality characterisation for customer quality specification compliance and process improvement targeting by quantifying the frequency and severity of yarn structural defects that determine downstream processing efficiency and fabric appearance quality, with USTER statistics comparison enabling yarn producers and textile manufacturers to communicate yarn quality requirements and achievements through an internationally recognised reference system.