International Journal of Textile Research (IJTR)

Research Article

Study of 504-overlock Three Stitch Consumption using Statistical and Geometrical Methods

F. Khedher¹ and B. Jaouachi^1,2

¹Textile Engineering Laboratory, University of Monastir-Tunisia.

²National School of Engineers of Monastir, University of Monastir-Tunisia.

Submitted: March 20, 2020; Revised: June 1, 2020; Accepted: July 17, 2020.

Abstract

This study highlights an evaluation of the consumption values of 504-overlock three-stitch of using statistical and geometrical calculation methods. Based on mixed Taguchi analysis and linear regression method, the consumed lengths using 504-overlock three-stitch are widely evaluated as function of studied influential factors. In fact, a database is used and basic geometry parameters of the 504-overlock three-stitch are conducted to evaluate and discuss the contributions of all input parameters on the sewing thread consumption of woven fabric samples. In this study, to calculate geometrically the consumed amount, some influential input factors are considered. However, some assumptions are taken in account to enormously facilitate the derived consumption. Findings show that, the increase of the seamed thickness of fabric enormously encourages the consumption value of the sewed 504-overlock three stitch. Thanks to both statistical and geometrical analysis, good relationships between the tested factors and the thread consumption value have been proposed and proved. Furthermore, accurate correlations are obtained between consumption of sewing thread and the thickness (R² ranged from 0.84 to 0.91) and mass of fabric (R² ranged from 0.933 to 0.9612) respectively. In addition, compared to experimental consumption values, the proposed geometrical model predicts the thread consumption with 98.26% accuracy against 90.4% only for the linear regression method. The proposed model can predict the thread consumption sufficiently for 504-overlock three stitch and helping industrials to provide their suitable thread amounts before sewing.

Keywords

Geometrical consumption; Unstitching length; 504-overlock three stitch; Looper thread; Statistical method.

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