Advances in Yarn Spinning Technology by C A Lawrence

By C A 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 up of the houses of the yarns produced, and resultant complete items, with these from traditional structures. half 1 presents an advent to yarn fiber spinning and constitution. Chapters talk about the rules of ring spinning and open-end spinning of yarns. Yarn constitution and houses from assorted spinning options and yarn structural requisites for knitted and woven materials also are tested. half 2 covers advances particularly yarn spinning applied sciences. subject matters variety from siro spinning to compact spinning expertise and air-jet spinning. ultimate chapters discover find out how to reduce fiber harm which may happen in the course of spinning and using spin finishes for textiles. With its wonderful editor and array of foreign individuals, Advances in Yarn Spinning Technology is a crucial textual content for spinners, yarn brands and upholstery manufacturers, in addition to researchers, technicians, engineers and technologists during this region of the fabric industry.

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Ring spinning is one of a number of methods for assembling and twisting fibres to form a yarn of required thickness and strength to enable the yarn to sustain stresses during the various processes of conversion of yarn to fabric. To fully explain the fundamentals of the ring spinning process, a review of the general principles of yarn formation is first described. 2 43 Basic principles of spinning The construction of yarn involves the linear and lateral positioning of the required number of fibres into a fibre strand and, by suitable means, consolidating the strand so as to utilise the strength of the individual fibres in order to give the yarn strength.

11 shows the surface twist angle of staple spun yarn. 13 where dy is the yarn diameter. I. 14 where dy is the specific volume in units of g m–1. 16 TM is referred to as the twist multiple or twist factor (TF). The reader is again referred to the publication Textile Terms and Definitions for further information in respect to the imperial and metric count systems. 4 Crompton’s spinning mule Following the development of the water frame, Samuel Crompton in 1779 invented the spinning mule, so called because it was a combination of the spinning jenny and the water frame.

As established above, the idea behind the newer methods is to separate winding from what may be considered as the action of consolidating the fibres together to impart strength to the yarn. Twist insertion cannot be used as the generic term for such consolidation, since a number of the newer methods use alternative means. In addition, most of the methods that employ twist have devised a new way of attenuation to obtain a suitable presentation of the fibre ribbon for twisting, while others retain the roller drafting system but utilise an alternative to the twisting principle of the rotating spindle.

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