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An Investigation of the Effects of Clean Reworkable Waste on the Quality of a 37s 50/50 Polyester/Cotton Ring Spun Yarn

Pamela S. Teichman and Clarence D. Rogers


 
ABSTRACT

The following study deals with the ever present problem of waste handling. Clean reworkable waste refers to primarily sliver from piece-ups, roving bobbin strips, and pneumafil. To start, the source and amount of clean reworkable waste produced was studied at a sheeting yarn manufacturing facility. This study yielded an approximate rate and proportion at which clean reworkable waste should be added. It was found that pneumafil accounted for approximately 40% of the total waste while roving bobbin strips made-up about 25%. For the study a 37s 50/50 polyester/cotton yarn was produced using Clemson University laboratory manufacturing equipment. Separate forms of clean reworkable waste were added at 3.5% to the polyester lay down. A blend of the waste forms was added at 3.5%, 7.0% and 10.5%. Testing was performed on the Uster Evenness Tester II, Classimat, Statimat II, and Scott Tester.



Reprinted from Proceedings of the 1997 Beltwide Cotton Conferences pp. 1659 - 1661
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998