Read e-book online Advances in Yarn Spinning Technology (Woodhead Publishing PDF
By Carl Lawrence
This e-book presents a useful unmarried resource of data at the advances in yarn spinning applied sciences. complex spinning platforms are defined and comparisons are made up of the homes of the yarns produced, and resultant entire items, with these from traditional structures. half 1 offers an creation 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 varied spinning thoughts and yarn structural standards for knitted and woven materials also are tested. half 2 covers advances particularly yarn spinning applied sciences. subject matters diversity from siro spinning to compact spinning expertise and air-jet spinning. ultimate chapters discover tips on how to reduce fiber harm which could happen in the course of spinning and using spin finishes for textiles. With its exotic editor and array of foreign members, Advances in Yarn Spinning expertise is a vital textual content for spinners, yarn brands and upholstery manufacturers, in addition to researchers, technicians, engineers and technologists during this area of the cloth undefined.
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Additional resources for Advances in Yarn Spinning Technology (Woodhead Publishing Series in Textiles)
E. spinning. a previously spun length. E. method commercially, namely rotor spinning and friction spinning. Both use a rotating roller having angled points projecting from their peripheral surface to remove a small number of individual fibres at a time and transport them to a collecting surface holding the yarn tail. 16 depicts the essential features of the rotor spinning system, which are ∑ The feed roller and feed plate ∑ A saw-tooth or pin-covered roller called an opening roller ∑ A tapered tube termed the transport channel ∑ A shallow cup called a rotor (a groove is cut into the internal peripheral surface, termed the rotor groove) ∑ A flanged tube (called the doffing tube) which faces the rotor base, coaxial to the rotor spindle ∑ A pair of delivery rollers that feed the spun yarn to the winding unit.
Spindle-drafting was now obtained by the movement of the carriage housing the rotating spindles. The roving packages were mounted onto a creel and the rovings fed by rollers into the drafting zone (see Fig. 12), and the machine was powered by the mechanical means of the day. The mule spinning process enabled large-scale manufacture of fine and coarse yarns, as a single operator could tend up to 1000 spindles. In the 1830s the ‘self-acting’ mule was developed. It was called ‘self-acting’ because it provided a mechanical means for automating the carriage movements (spindledrafting and winding), and synchronising them with the roving feed by the rollers.
Modern ring-spinning machines exhibit very sophisticated engineering developments which circumvent many of these drawbacks, such as automated doffing and link-winding , so that larger packages can be built from spinning bobbins on an attached re-winding machine. These developments will be described in Chapter 7. It should be evident from the above explanation that although combining the twisting and winding actions gave ring spinning major advantages over mule spinning, the combination also restricted the production speeds to which the ring and traveller system could be developed.
Advances in Yarn Spinning Technology (Woodhead Publishing Series in Textiles) by Carl Lawrence