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Evolution of Residual Bagging Height along Knitted Fabric Lengths

M. Gazzah (Textile Engineering Laboratory, Unversity of Monastir, Tunisia)
B. Jaouachi (Textile Engineering Laboratory, Unversity of Monastir, Tunisia and National Engineering School of Monastir, University of Monastir, Tunisia, )

Research Journal of Textile and Apparel

ISSN: 1560-6074

Article publication date: 1 November 2014



This work deals with the evolution of the residual bagging height of knitted samples. In comparing the results after a fabric bagging test, it may be concluded that the behaviour of the sample length is an influential parameter which widely reflects the anisotropy of knitted structures. Hence, it is clear that the sample length does not exhibit the same behaviour in each knitted fabric zone which generally explains the impartial response after stress is applied. With regards to the different height values that the sample length presents in each measured part of the fabric, it may be concluded that there are several types of behaviours in the areas of bagging along the sample length. Moreover, it appears that there is a non uniform distribution of deformation after removing the stress. Therefore, internal stresses and deformations that cause different residual heights in the same sample accurately reflect and explain the anisotropic structure of the investigated knitted fabrics. In knowing that there is this non-uniform distribution of deformation, the input parameters also have considerable effects on the bending behaviour of the residual bagging. Indeed, when the yarn structure is changed, the residual bagging height changes too. Furthermore, our findings prove that elastic knitted fabrics accurately show a more minimal residual bagging height as opposed to non elastic fabrics in spite of the other input parameter values.



Gazzah, M. and Jaouachi, B. (2014), "Evolution of Residual Bagging Height along Knitted Fabric Lengths", Research Journal of Textile and Apparel, Vol. 18 No. 4, pp. 70-75.



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