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

• Autorzy: Zhang Lingjie , Miao Xuhong , Wan Ailan

Identyfikatory

DOI

10.1515/aut-2018-0045

• Języki publikacji: EN

Abstrakty

EN

The 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.

Słowa kluczowe

EN

warp knitting; lapping angle; underlap; guide bar

PL

dzianina osnowowa; podszewka

• Wydawca: Lodz University of Technology, Faculty of Material Technologies and Textile Design
• Czasopismo: Autex Research Journal
• Rocznik: 2019
• Tom: Vol. 19, no. 2
• Strony: 173--180
• Opis fizyczny: Bibliogr. 11 poz.

Twórcy

autor

Zhang Lingjie

• Engineering Research Center for Knitting Technology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, China

autor

Miao Xuhong

• Engineering Research Center for Knitting Technology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, China

autor

Wan Ailan

• Engineering Research Center for Knitting Technology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, China

Bibliografia

• [1] Paling, D. F. (1952). Warp knitting technology. Harlequin Press (Manchester).
• [2] Qinglin, C. A. O. (2009). Analyzing on loop-forming motions and knitting devices of warp knitting machines. Journal of Textile Research, 11, 028.
• [3] Xia, F., Ge, M. (2009). Motion rule of electronically pattern system on a high speed warp knitting machine. Fibres & Textiles in Eastern Europe, 17(4), 75.
• [4] Xian, X. (2009). An analysis on the mechanism and knitting technology of the seamless circular weft knitting machine. Knitting Industries, 4, 004.
• [5] Feng, S. (2004). Study on the theory of large diameter signal plated weft knitting. Journal of Textile Research, 4, 020.
• [6] Raz, S. (1987). Warp knitting production. Melliand Textilberichte.
• [7] Zhang, L. Z., Jiang, G. M., Gao, W. D. (2009). 3-D simulation and dynamic realization of warp-knitted structure. Journal of Textile Research, 30(2), 125-129.
• [8] Semnani, D., Vadood, M. (2010). Improvement of intelligent methods for evaluating the apparent quality of knitted fabrics. Engineering Applications of Artificial Intelligence, 23(2), 217-221.
• [9] Semnani, D., Latifi, M., Tehran, M. A., Pourdeyhimi, B., Merati, A. A. (2005). Effect of yarn appearance on apparent quality of weft knitted fabric. Journal of the Textile Institute, 96(5), 295-301.
• [10] Renkens, W., Kyosev, Y. (2011). Geometry modelling of warp knitted fabrics with 3D form. Textile Research Journal, 81(4), 437-443.
• [11] Liu, X., Miao, X. (2016). Analysis of yarn tension based on yarn demand variation on a tricot knitting machine. Textile Research Journal, 0040517516632473.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).