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Analysis of the Strength Parameters of Worsted and Component Spun Yarns after the Rewinding Process

Research and development

Author:

  • Rutkowski Jacek
    Department of Material and Commodity Sciencs and Textile Metrology, Faculty of Material Technologies and Textile Design, Technical University of Lodz, Łódź, Poland

Nr DOI: 10.5604/01.3001.0011.5736

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Abstract:

The notion of yarn is understood as a continuous textile product of theoretically endless length and circle-like cross-section, made of staple or continuous fibres. A yarn leaves the spinning mill in a raw state and is used to produce some fabrics, but mostly it is subjected to the process of finishing. The yarn undergoes preparatory processes, such as winding, doubling, twisting, paraffin treatment, singeing and dyeing, depending of the final fabric type. Yarns are rewound on winding frames, and computers control  operation of the rewinding frames and systematically monitor the yarn parameters. An electronic cleaner removes  yarn defects, whose size has been saved in the computer memory. The purification of yarn improves its quality, resulting in a decrease in the number of breaks in further technological processes. A lower number of yarn breaks contribute to an increase in  machine efficiency (weaving and knitting machines).The experimental section of the study is divided into two parts. The first  includes  tests of  yarn strength parameters before and after the rewinding process. It was established in the process of cleaning that the yarn during rewinding affects the strength of  wool and blended yarns. In the second part, the strength parameters of yarn doubling points after the rewinding process for various variants of the splicer setting were tested. The blowing time in the doubling chamber was changed and the importance of using the thermosplicer for the yarn joint strength was established.

Tags:

worsted yarn, component yarn, winding process, yarn tenacity, joining knotless method, splicer.

Citation:

Rutkowski J. Analysis of the Strength Parameters of Worsted and Component Spun Yarns after the Rewinding Process. FIBRES & TEXTILES in Eastern Europe 2018; 26, 2(128): 32-37. DOI: 10.5604/01.3001.0011.5736

Published in issue no 2 (128) / 2018, pages 32–37.

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