Abstract
The work reported in this paper indicates that a significant change in the properties of wool and man-made-fibre tops can occur over a relatively short period of time and is related to the additives applied to the fibre in preparatory processing. This phenomenon, which is most noticeable for wool and wool-blend tops, is accompanied by the migration of ethoxylated-based lubricant components from the surface to the fibre interior and has been shown in certain cases to result in increased fibre-to-fibre or fibre-to-metal friction (or both), with a subsequent reduction in spinning performance. The latter observation has considerable consequences for processors and indicates the requirement for minimum top-storage times to reduce the need for relubrication.
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