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Analysis of lockstitch seam strength and its efficiency

Iwona Frydrych (Institute of Textile Architecture, Lodz University of Technology, Lodz, Poland AND Central Institute for Labour Protection, National Research Institute, Lodz, Poland.)
Agnieszka Greszta (Faculty of Material Technologies and Textile Design, Lodz University of Technology, Lodz, Poland.)

International Journal of Clothing Science and Technology

ISSN: 0955-6222

Article publication date: 1 August 2016

461

Abstract

Purpose

Seam efficiency plays an important role for obtaining a desired seam quality. Therefore, this issue is often referred in research papers. The purpose of this paper is to determine the seam strength and efficiency as well as examining, if and how such factors as: a kind of fabric, kind of thread, kind of seam and the stitch density influence the transverse seam strength and the seam efficiency.

Design/methodology/approach

For research four types of polyester/wool fabrics having different structural parameters and two types of polyester sewing threads were used. Three types of seam were made. The fabric samples were sewn using lockstitch with three different stitch densities. Obtained in this way seams were tested on the tensile machine. The influence of individual factors on the seam strength and its efficiency was assessed statistically using a multivariate variance analysis (ANOVA).

Findings

The findings of this study revealed that the independent variable – stitch density affect significantly of the seam strength as well as its efficiency. Seam strength and seam efficiency values increase with the increase stitch density. Moreover, the variance analysis showed that a kind of fabric also is a statistically significant factor for the seam efficiency and its strength. Furthermore, in the case of seam efficiency it is also important to the stitch direction. However, the study did not show an impact of kind of thread and kind of seam on dependent variables: the seam strength and its efficiency.

Research limitations/implications

Due to the fact that this paper focuses on the seams made only on wool/polyester fabrics with two the most popular weaves, involving only two sewing PES threads, the conclusions presented in this paper are valid only to this assortment and cannot be generalized.

Originality/value

So far, it has not been taken research on the effect of seams with the different number of sewn layers on the seam strength and efficiency. This issue has been taken in this work.

Keywords

Citation

Frydrych, I. and Greszta, A. (2016), "Analysis of lockstitch seam strength and its efficiency", International Journal of Clothing Science and Technology, Vol. 28 No. 4, pp. 480-491. https://doi.org/10.1108/IJCST-12-2015-0133

Publisher

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Emerald Group Publishing Limited

Copyright © 2016, Emerald Group Publishing Limited

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