Influence of tuck stitches on the physical and mechanical properties of knitted fabrics

This article discusses ways to develop combined knitwear based on elastic weave. The purpose of the dissertation work is to improve the technology for the production of knitted fabrics with reduced material consumption, which will provide and satisfy the demand of the population with high-quality knitted products that have high performance, hygienic and consumer properties. As a result of the experimental work, the technological capabilities of the modern LIBRA 3.130 flat knitting machine were studied and new types of combined knitwear based on elastic interlock weave were obtained. Regularities of the influence of elements of the structure of knitwear on the parameters and physical and mechanical properties of the fabric of knitwear are established. Comparing the volumetric density of the combined knitwear of different structures, one can be convinced that the presence of rows of satin stitch and a derivative surface in the structure of elastic knitwear not only reduces extensibility and increases dimensional stability, but in some cases reduces the bulk density of knitwear. It has been established that the air permeability coefficients can be reduced to 40% (168.6 - 236.6 cm3/cm2∙sec) for combined knitwear by reducing the length of the thread in the loop. It has been established that a decrease in the surface density of combined knitwear based on elastic and interlock weave can also be achieved by skipping stitches, since this reduces the length of the thread spent on the formation of one loop row. On the basis of a comprehensive comparison, optimal options for new models of knitwear structures with improved physical, mechanical and consumer properties are proposed. Regression equations are derived to determine the dependence of the bulk density of the knitted fabric and the air permeability index on technological factors. The results of the study make it possible to expand the range of knitted products, re-duce the consumption of raw materials per unit of production, as well as improve the quality and consumer proper-ties of the range produced, choose high-quality samples and technologies for their production.

1. Farha, F.I., Farhana Iqbal, S.M., Arif Mahmud, M., 2019. Compositional and structural influence on some weft-knitted fabrics comprised of cotton and lyocell yarn. In:Journal of the Institution of Engineers (India): Series E, 100, pp. 11–19. Issue 1.

2. Hassan, M., 2020. Evaluation of the moisture and thermal characteristics of knitted sport wear fabrics (Dept.T). MEJ. Mansoura Eng. J. 34 (2), 8–23.

3. Hoque, M.S., Chakraborty, S., Hossain, M.F., Alam, M.M., 2018a. Knit fabric scouring with soapnut: a sustainable approach towards textile pre-treatment. Am. J. Environ. Protect. 7 (1), 19–22.

4. Kalkanci, M., 2019. Investigation into fabric spirality in various knitted fabrics and its effect on efficiency in apparel manufacturing. Fibres Text. East. Eur. 27 (1), 59–66.

5. Choudhary, A.K., Ramratan, 2020. The influence of yarn and knit structure on moisture management properties of sportswear fabric. J. Inst. Eng.: Series E 101 (1), 77–90.

6. Sathish Babu, B., Senthil Kumar, P., Senthil Kumar, M., 2020. Effect of yarn type on moisture transfer characteristics of double-face knitted fabrics for active sportswear. J. Ind. Textil. 49 (8), 1078–1099.

7. Asif, A., Rahman, M., Farha, F.I., 2015. Effect of knitted structure on the properties of knitted fabric. Int. J. Sci. Res.

8. Oner, E., 2019. Mechanical and thermal properties of knitted fabrics produced from various fiber types. Fibers Polym. 20 (11), 2416–2425.

9. Karimian, M., Hasani, H., Ajeli, S., 2013. Analyzing the effect of fiber, yarn and fabric variables on bagging behavior of single Jersey weft knitted fabrics. J. Eng. Fiber. Fabrics 8 (3), 155892501300800.

10. Van Amber, R.R., Lowe, B.J., Niven, B.E., Laing, R.M., Wilson, C.A., Collie, S., 2015. The effect of fiber type, yarn structure and fabric structure on the frictional characteristics of sock fabrics. Textil. Res. J. 85 (2), 115–127.

11. Emirhanova, N., Kavusturan, Y., 2008. Effects of knit structure on the dimensional and physical properties of winter outerwear knitted fabrics. Fibres Text. East. Eur. 16 (2), 69–74 (67).

12. Choudhary, A.K., Ramratan, 2020. The influence of yarn and knit structure on moisture management properties of sportswear fabric. J. Inst. Eng.: Series E 101 (1), 77–90.

13. Onofrei, E., Rocha, A.M., Catarino, A., 2011. The influence of knitted fabrics’ structure on the thermal and moisture management properties. J. Eng. Fiber. Fabrics 6 (4), 10–22.

14. Uyanik, S., Topalbekiroglu, M., 2017. The effect of knit structures with tuck stitches on fabric properties and pilling resistance. J. Textil. Inst. 108 (9), 1584–1589.

15. Spencer, D.J., 2001. Knitting Technology: A Comprehensive Handbook And Practical Guide (Third). Woodhead Publishing.

16. ChenC., Zhaoqun Du, Weidong Yu, Tilak Dias(2016),Analysis of physical properties and structure design of weft-knitted spacer fabric with high porosity, Textile Research Journal, 88, 1: pp. 59-68.

17. Yang Yang, Xin Yu, Liqun Chen, Peihua Zhang (2020). Effect of knitting structure and yarn composition on thermal comfort properties of bilayer knitted fabrics Textile Research Journal, 91, 1-2: pp. 3-17.

18. Uyanik S, Degirmenci Z, Topalbekiroglu M, Geyik F. (2016), Examining the Relation Between the Number and Location of Tuck Stitches and Bursting Strength in Circular Knitted Fabrics. FIBRES & TEXTILES in Eastern Europe 24, 1(115): 114-119.

19. Sarybaeva Je.E., Kuramysova M.U., Mukimov M.M. Sposob vjazanija dvuhslojnogo trikotazha na ploskofangovoj mashine [Method of knitting two-layer knitwear on a flat-fang machine] Patent na poleznuju model' №4640, 2020.(In Russian)

20. Sevost'janov A.G. Metody i sredstva issledovanija mehaniko-tehnologicheskih processov tekstil'noj promyshlennosti [Methods and means of studying the mechanical and technological processes of the textile industry.] Мoskva: MGTU A.N. Kosygina, 2007.- 648 р. (In Russian)