The effects of combing-roll wire design, particularly the front angle, on lint and trash in the trash box, rotor trash, fiber breakage, fiber orientation in the rotor, and yarn properties, were investigated by means of various combining-roll and rotor speeds and different methods of cotton sliver preparation. Combing-roll and rotor speeds and sliver prepara tion had a significant effect on all the yarn properties investigated, while wire design had much less effect. Generally, combining-roll wire front (forward rake) angles of 0 and 30° yielded the poorest results, and the 15° angle wire yielded slightly better results than the other combiriing-roll wires studied.
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References
1.
Am. Soc. Test. Mat., Test Methods D1440-77, D1445-75. D1448-74, D1578-67, D2256-75, and D2812-76, "Book of ASTM Standards," Part 32 and 33, 1977 .
2.
Grosberg, P. and Mansour, S.A., High-Speed Open-End Rotor Spinning , J. Texlile Inst. 66, 389-396 (1975).
3.
Kirschner, E. and Bay, E., Evaluation of Measures for Reducing Deposits in the OE-Spinning Rotor, on the Basis of Deposit Characterises , Textil Prax. Int. E 6671 Ex 2, (English Ed.), VI-IX. German Original, 132-1-11 (1978).
Murray, Michae) F. and Patureau, Mytes A., "Cyclone Dust Analyzer ," Patent applied for.
6.
Rusca, R.A., Conversion of the Saco-Lowell Sliver Tester to Electrical Recording , Textile Res. J. 20, 780-786 (1950).
7.
Simpson, J. and Patureau, M.A., A Method ahd Instrument for Measuring Fiber Hooks and Paralleliiation , Textile Res. J. 40, 956-957 (1970).
8.
Simpson, J. and Patureau, M.A., "Effect of Open-End Rotor Speed on Yarn Properties," Presented at the ASME Twtile Engineering Conference, Raleigh, N. C., Oct. 17, 1978.
9.
Simpson, J., Single Versus Double Carding Effects on Open-End Spinning and Yarn Properties , Am. Texlile Rep./ Bull. AT7 (9), 46-53 (1978).
10.
Winer, B.J., "Statistical Principles in Experimental Design," Second Edition, McGraw-Hill, New York, 1971, pp. 191,' 343-351.
11.
Vaughn, E.A. and Cox, T.S., The Effects of Opening Roller Wire Design and Operating Speed on the Properties of Open-End Cotton Yarn , Am. Soc. Mech. Eng. Tech. Publ. 7S-Tex-3, 1-6 (1975).
