A new insight into the dynamics of fibre migration in ring spinning. Issue 4 (3rd April 2019)

• Record Type: Journal Article
• Authors: Singh, Charanpreet; Gordon, Stuart; Zhang, Shangyong; Wang, Xungai
• Is Part Of: Journal of the Textile Institute. Volume 110:Issue 4(2019)
• Page Start: 552
• Page End: 561
• Publication Date: 2019-04-03
• Subjects: Fibre migration -- reflective imaging -- pre-twist -- spinning triangle -- migration mechanism; Textile industry -- Periodicals; Textile fabrics -- Periodicals; Periodicals; 677.005
• DOI: 10.1080/00405000.2018.1496587
• Languages: English
• ISSNs: 0040-5000

Abstract

Abstract: 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.