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Cotton fiber properties play a significant role in determining the quality of yarns and fabrics. Information on fiber length distribution is crucial throughout many textile processing steps to transform fibers into yarn. The current High Volume Instrument (HVI) provides only two traditional length parameters, the upper half mean length (UHML) and uniformity index (UI). The UI is the mean length (ML) divided by the UHML expressed as a percentage. Both UHML and ML are extracted from the fibrogram, are highly correlated, and characterize only the longer fibers in a sample. Yet, the whole fibrogram contains more descriptive information than the two length measurements provided by the HVI. In addition, the fibrogram is a stable measurement on an HVI, and differences in fibrogram measurements across instruments can be reduced using a recently proposed calibration method. However, the use of the complete fibrogram by the textile industry is complicated and almost impossible in practice. This study aimed to investigate a simplified method to identify key span lengths extracted from the HVI fibrogram that can improve yarn prediction compared to the current method. The results obtained from a set of 60 commercial-like samples covering a wide range of length parameters are promising.

Use of Span Lengths Extracted from the HVI Fibrogram to Predict Yarn Quality