Needle eye temperature measurement at different speeds of sewing

In this article two methods are used to measure the temperature of needle eye during the high speed of sewing and the results are compared for calculating the precision in the measurement, Needle heatup is a big issue for apparel industry especially for automobile industry seat covers where a lot of synthetic materials are used which get damaged by needle heat at high speed of sewing machine, in this article thermocamera and thermocouple are used to calculate the precise temperature of needle eye and then 100% polyester 35×3 Tex thread is taken for sewing, the lockstitch sewing machine is run at 1000rpm, 2000rpm and 3000rpm respectively and the both methods are used to obtain the accurate needle temperature and finally thread tensile properties the article is very helpful in predicting the exact temperature of needle in lock stitch machine at different stages of sewing process.