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item Brushwood, Donald

Submitted to: Applied Engineering in Agriculture
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 2/6/2004
Publication Date: 7/1/2004
Citation: Brushwood, D.E. The effects of raw cotton noncellulosic content and fiber rotorring friction on yarn ring spinning performance. Applied Engineering in Agriculture. 2004. v.20 (4) p. 1-5.

Interpretive Summary: There are a number of measurable raw cotton fiber surface characteristics that may affect the way lint performs in textile spinning. To date, very little work has been done to investigate these relationships. A series of domestically grown cottons were analyzed for physical properties, frictional properties, wax and metal content, and total surface extractables to characterize the fiber. Subsequent accumulated data for these tests were correlated with ring spinning performance results for the same fibers. The purpose of this limited study was to determine if any of these characteristics have influences on spin performance data such as ends down, skein break factor, single strand strength, elongation, evenness, and classimat neps and thick and thin place yarn data.

Technical Abstract: Raw cottons from five different domestic growing areas were subjected to physical, chemical surface, metal content and frictional property tests. The same bales were subsequently spun into 28/1 yarn by ring spinning at a spindle speed of 14,5000 rpm. To determine any influences that the above surface extractables, metal contents, and friction measurements may have on nring spinning data, all results were averaged by specific growing area and compared to corresponding spin data by the same growing area. Results showed that total fiber surface extractable and fiber metal content affected yarn single strand strength and coefficient of variation, spinning ends down and break factor, and long thin place measurements. Fiber wax content correlated well with single strand strength variation and elongation measurements and the classimat rated number of thick places observed in the finished yarn. Raw fiber friction measurements correlated well with nep counts, yarn thick and thin placed and the measurement of major yarn faults. This study shows that raw fiber surface characteristics can greatly affect yarn spinning performance.