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Calculation and Analysis of Horizontal and Vertical Lapping Angles in Tricot Warp Knitting

Calculation and Analysis of Horizontal and Vertical Lapping Angles in Tricot Warp Knitting AbstractThe lapping angle, which affects the style and quality of production, has been studied as a parameter of weft knitting. But the importance of the lapping angle has not been considered during the warp-knitting cycle. This paper shows that the lapping angle exists in the process of warp knitting and can be divided into horizontal and vertical lapping angles. Models for the lapping angles of closed and open loops were devised, and the lapping angles (horizontal and vertical lapping angles) of closed and open loops were calculated and analyzed. Furthermore, the paper seeks to investigate the factors that influence the lapping angle of tricot warp-knitted fabrics and summarize the rules. Moreover, the vertical lapping angle can affect the loop coverage. Results reveal that the decrease in number of underlaps and an increase in take-off density enables loops of the front guide bar to show on the face of the fabric. Moreover, it is also advantageous for an apparent front loop visibility when the front guide bar knits in open loop. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Autex Research Journal de Gruyter

Calculation and Analysis of Horizontal and Vertical Lapping Angles in Tricot Warp Knitting

Autex Research Journal , Volume 19 (2): 8 – Jun 1, 2019

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Publisher
de Gruyter
Copyright
© 2019 Lingjie Zhang et al., published by Sciendo
ISSN
2300-0929
eISSN
2300-0929
DOI
10.1515/aut-2018-0045
Publisher site
See Article on Publisher Site

Abstract

AbstractThe lapping angle, which affects the style and quality of production, has been studied as a parameter of weft knitting. But the importance of the lapping angle has not been considered during the warp-knitting cycle. This paper shows that the lapping angle exists in the process of warp knitting and can be divided into horizontal and vertical lapping angles. Models for the lapping angles of closed and open loops were devised, and the lapping angles (horizontal and vertical lapping angles) of closed and open loops were calculated and analyzed. Furthermore, the paper seeks to investigate the factors that influence the lapping angle of tricot warp-knitted fabrics and summarize the rules. Moreover, the vertical lapping angle can affect the loop coverage. Results reveal that the decrease in number of underlaps and an increase in take-off density enables loops of the front guide bar to show on the face of the fabric. Moreover, it is also advantageous for an apparent front loop visibility when the front guide bar knits in open loop.

Journal

Autex Research Journalde Gruyter

Published: Jun 1, 2019

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