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An Investigation on the Performance of Modified Coir Spinning Machine

Velayutham Thanabal, Dhandapani Saravanan

Autex Research Journal

2019

Vol. 19, no. 3

211--216

Coir fibre is a non-conventional fibre extracted from the husk of coconut fruit and is abundantly available in tropical countries. Coir yarn is produced in the decentralised cottage industry. Increase in the demand for the coir fibre yarns for value-added applications has forced the coir yarn manufacturers to improve the existing coir spinning machine in different ways. In this study, the working principle of the existing coir spinning machine has been studied from the perspective of further improvements in production rate, yarn quality and spinning performance. Modifications have been made in the existing coir spinning machine in fibre feeding, opening and cleaning. There is improvement in the production rate of up to 20% with significant improvements in the yarn quality and spinning performance.

New Impulse Аcoustic Method for Testing and Estimating the Transversal Unevenness and Defectiveness of Filaments in Chemical Yarns

Perepelkin K. E.

Fibres & Textiles in Eastern Europe

2007

Vol. 15, no. 2 (61)

36--42

The problem of testing the transversal unevenness of yarns is presented, and the methods used hitherto briefly revised. The development of the impulse-acoustic method and its basic principles are described, in view of the differences in the stretching diagrams of single fibres and yarns. Details of the test stand and the methods of preparing the samples are presented. In order to demonstrate the advantages of this method, tests on some selected samples of various kinds of chemical yarns are presented, as are the possibilities of applying the new method in science and industry.

Przedstawiono problem oceny poprzecznych nierównomierności w przędzach i skrótowo omówiono dotychczas stosowane metody. Przedstawiono rozwój metody akustyczno-impulsowej i jej podstawowe zasady, rozpatrując różnice w krzywych rozciągania pojedynczych filamentów i przędz. Omówiono szczegółowo stanowisko pomiarowe i metody przygotowywania próbek. W celu wykazania zalet tej metody, przedstawiono testy wyselekcjonowanych próbek różnego rodzaju przędz z włókien chemicznych. Zwrócono uwagę na możliwości stosowania tej metody w nauce i przemyśle.