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A new insight into the dynamics of fibre migration in ring spinning

journal contribution
posted on 2019-01-01, 00:00 authored by Charanpreet Singh, S Gordon, S Zhang, Xungai Wang
Fibre migration in yarns is thought to take place in the spinning triangle (ST), where high tensioned edge fibres tend to compete for a low tension state by displacing inner fibres outwards to occupy the core position – the tension mechanism. The angular alignment of fibres in the drafted roving – the geometric mechanism – is also considered to contribute to this movement. Although there is an understanding of the mechanisms of fibre migration, the outward movement of core fibres, from a low to high tension state and through a thick web of gripped fibres – moving inwards – has not been fully understood. In this study, we have attempted to reanalyse the classical migration mechanism from a new perspective and establish its relationship with a real ST using a new reflective imaging technique. The study findings suggest that pre-twist region in the ST, which is generally considered to be stable at one location, shows a rather dynamic oscillatory movement – a result of continuous change in ST tension profile. Spinning trials were conducted to confirm a relationship between pre-twist movement and degree of fibre migration.

History

Journal

Journal of the textile institute

Volume

110

Issue

4

Pagination

552 - 561

Publisher

Taylor & Francis

Location

Abingdon, Eng.

ISSN

0040-5000

eISSN

1754-2340

Language

eng

Publication classification

C Journal article; C1 Refereed article in a scholarly journal

Copyright notice

2018, The Textile Institute