Abstract
The traveller imparts twist to the yarn and enables winding of the yarn on the cop. Yarn quality parameters can be improved by proper traveller weight selection which results in reducing yarn breakage, mass variation, twist variation and hairiness. High contact pressure (up to 35N/mm) is generated between the ring travellers during winding, mainly due to centrifugal force the pressure includes strong frictional forces which in turn lead to significant generation of heat. This is the kernel of the ring/ traveller problem. The low mass of the traveller does not permit dissipation of the generated heat in the short time available. Uster Evenness Tester 5 was used to determine the yarn properties such as unevenness, percentage, imperfection index, hairiness, standard variation of hairiness. Traveller number 5/0 was the best for card 30 Ne compare between traveller number 4/0 Most preeminence fact is that, the traveller speed remained same both for 5/0 and 4/0.
Highlights
If we analyze the overall spinning process, we can see that count of yarn and traveller both has preeminence on spinning process
Yarn quality parameters can be improved by proper traveller weight selection which results in reducing yarn breakage, mass variation, twist variation and hairiness
Light weight travellers are recommended for spinning the fine yarn and heavier weight traveller for coarser yarn spinning
Summary
If we analyze the overall spinning process, we can see that count of yarn and traveller both has preeminence on spinning process. Yarn count is a number that represents the diameter of fineness [1] of yarn.Traveller is mainly used to impart twisting, winding, thread guide etc. At this experiment, as speed is important factor. When machine run at maximum speed, traveller has higher tendency to wear out. As long as end breakage does not occur unevenly there is a strong tendency to keep the speed of spinning up & replace traveller to maximum speed. Light weight travellers are recommended for spinning the fine yarn and heavier weight traveller for coarser yarn spinning
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