Effect of compressional behaviour and sewing machine foot pressure
on sewing thread consumption


Jaouachi, Boubaker ; Khedher, Faouzi


Effect of compressibility and foot pressure on the consumption behaviour of sewing threads in case of single and double-layered denim fabrics has been investigated. Experiments involve fabric thickness of three different denim samples (cotton, and 90/8.5/1.5% & 92/6.5/1.5% cotton/polyester/elastane) and their compression properties measurement using Kawabata device. A relationship between compressional energy and consumed sewing thread values using lock stitch type 301 has been investigated. Based on this, accuracy of the coefficient of regression (close to 1) has been observed, indicating the positive relationship between compressibility property and sewing thread consumption behaviour. Implementation of software can help the industries to minimize their consumption errors and approximations. Nevertheless, under the same pressure value applied by the foot pressure, the thickness values of sewed layers can decrease differently as a function of their compressional resilience. Thus, it is obvious that thicker fabrics display lower compressional resilience and vice versa, which encourages more consumption of sewing thread.


Cotton;Denim fabric;Elastane;Fabric compressibility;Polyester;Sewing thread;Thread consumption

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