By Carl Lawrence
This booklet presents a useful unmarried resource of data at the advances in yarn spinning applied sciences. complicated spinning platforms are defined and comparisons are made from the homes of the yarns produced, and resultant accomplished items, with these from traditional platforms. half 1 presents an creation to yarn fiber spinning and constitution. Chapters speak about the rules of ring spinning and open-end spinning of yarns. Yarn constitution and houses from diversified spinning concepts and yarn structural requisites for knitted and woven materials also are tested. half 2 covers advances particularly yarn spinning applied sciences. themes variety from siro spinning to compact spinning expertise and air-jet spinning. ultimate chapters discover the way to reduce fiber harm that can ensue in the course of spinning and using spin finishes for textiles. With its exclusive editor and array of foreign members, Advances in Yarn Spinning know-how is a vital textual content for spinners, yarn brands and upholstery manufacturers, in addition to researchers, technicians, engineers and technologists during this region of the cloth undefined.
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This ebook presents a useful unmarried resource of knowledge at the advances in yarn spinning applied sciences. complex spinning structures are defined and comparisons are made up of the houses of the yarns produced, and resultant accomplished items, with these from traditional structures. half 1 offers an advent to yarn fiber spinning and constitution.
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Additional resources for Advances in Yarn Spinning Technology (Woodhead Publishing Series in Textiles)
The details of this system will be described in Chapter 12. 7 Wrap spinning methods Besides the use of twist to consolidate the drafted ribbon of parallel fibres that constitutes a spun structure, surface fibres protruding from the ribbon or a continuous filament (or filaments) can be made to wrap (or bind) the fibre assembly to form a yarn with usable strength. 1 Surface fibre wrapping Two techniques are used: friction spinning and air-jet spinning. 21 In-phase and 180° phased ST yarn structures.
Uk (year 2010) 17. png (year 2010) 18. html (year 2010) 19. S. , Some historical and technical aspects of spinning, Textile Research Journal,1956, 26: 460–469 © Woodhead Publishing Limited, 2010 Overview of developments in yarn spinning technology 41 20. , A review of the development of cotton spinning machinery, Journal of the Textile Institute Proceedings, August 1951, 42(8): 457–478 21. , Spun Yarn Technology, Butterworths, London, 1987 22. , Self-Twist Yarn, Merrow, Newcastle-upon-Tyne, UK, 1971 23.
13, it can be reasoned that in order to combine the twist and winding actions, the forming yarn must approach the spindle axis at a suitable angle, b. The apex of this angle through which the yarn passes must be the point, A, on the spindle axis. The yarn must then bend away from this point and subsequently bend a second time, at B, to approach tangentially, at the angle f in the horizontal plane, the circumference of the bobbin mounted coaxially with the spindle. Thus, as the spindle rotates and the yarn path follows the circular trajectory, each completed circle of rotation will insert one turn of twist within the length AB.