Single-Fiber Analysis
Automated testing equipment measures individual cotton fibers by aerodynamic singulation to evaluate nep counts, fiber length and trash content in raw stock. The advanced fiber information system processes thousands of individual fibers per minute to generate statistical distributions of fiber parameters. Textile spinning mills rely on these distribution curves rather than simple mean values to configure opening and carding machinery.
Optical Counting
Sensor arrays detect optical signals as singulated fibers pass through an airflow channel. Dust particles and seed coat fragments interrupt light beams at distinct pulse signatures, allowing mechanical separation of counts. Mean fiber length by number and weight distribution metrics isolate short fiber content below twelve millimeters.
Carding operators adjust flat gauges when measured nep levels exceed plant limits.
Process Calibration
Carding machines and combing units alter fiber length distributions through mechanical fiber breakage and nep removal. Data from an advanced fiber information system reveals whether carding action reduces nep counts or creates new mechanical neps through harsh wire clothing. Spinners sample sliver at consecutive machine passages to track length degradation.
Processing Prediction
Yarn quality correlates with raw fiber distribution properties measured prior to spinning. High short fiber content causes increased yarn unevenness and lower tensile strength. Modern spinning plants establish purchasing limits based on automated fiber measurements to prevent downtime during ring spinning.
