Statistical Analysis and Instrumental Characterization of Commercial Ethiopian Cotton Varieties
Abstract
The finding of ANOVA analysis with no significant difference in length distribution will permit the spinners to classify the bales into the same categories during HVI fiber selection and laydowns arrangements. Classification of cotton bales with similar length distribution will minimize the undesirable laydown variability in critical properties such as short fibers contents which are the main sources of yarn unevenness. In this study the HVI tenacity for the studied three commercial varieties fall within the range of 26.94-28.28. According to USDA system of cotton classification this range is categorized in the descriptive designation “average†strength group. FAVIGRAPH elongation in percent fall within the range 6.41-7.01. For the studied samples Acala SJ-2 variety has a relatively better elongation property. This can be used as information for the spinners to increase the proportion by weight of Acala SJ-2 during the preparation of a cotton mix desired for relatively better yarn and greige fabric elongation. In this research work a modified fiber quality index (MFQI) is formulated to instrumentally characterize the studied commercial Ethiopian cotton varieties. The results obtained show that the combination of HVI and FAVIGRAPH data allows us to predict quite accurately fiber properties for commercial bales.Downloads
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