EFFECTS OF SPINNIG SPEED AND COURT VARIATION ON THE IRREGULARITY OF OE-ROTOR-SPUN YARNS
EFFECTS OF SPINNIG SPEED AND COURT VARIATION ON THE IRREGULARITY OF OE-ROTOR-SPUN YARNS
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Date
1999-11
Authors
ABDULLAHI, DANLADI
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Abstract
Open end rotor yarns were spun at six different counts, each
count at five different, speeds on a BD 200 machine. A constant
twist factor and fixed opening roller speed were used throughout
the spinning operations. Cutting and weighing technique was used
to analyse the spun yarns to assess the influence of speed and
count variation on the irregularity of the OE-rotor yarns.
Uster evenness tester was used to analyse the yarns for
irregularities, neps, etc.
From the results obtained, it became clear that increasing
rotor speed increases the level of irregularity in OE-rotor
yarns, and increasing the yarn count (tex) from fine to coarse
values also increases the level of irregularity of the rotor
yarns analysed.
It was observed that the level of irregularity in the yarns
produced was low compared to that of rotor yarns of similar
counts reported in the literature.
Description
A Thesis presented to the Department of Textile Science &
Technology, Ahmadu Bello University, Zaria, in partial fulfillment
of the award of Master of Science in Textile Science and
Technology.
Department of Textile Science and Technology,
Ahmadu Bello University, Zaria.
November, 1990.
Keywords
VARIATION,, SPINNIG SPEED,, IRREGULARITY,, OE-ROTOR-SPUN