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Parameters affecting needle thread tension during lockstitch process

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Title Parameters affecting needle thread tension during lockstitch process
 
Creator Chauhan, Roopam
Ghosh, Subrata
 
Subject Check spring
Denim
Fabric compressibility
Feed rate
Lockstitch process
Nonwoven
Needle thread tension
Peak tension
Rib knitted fabric
Sewing thread
Thread elongation
 
Description 318-325
Role of check spring and parameters, like fabric compressibility, feed rate, breaking elongation percentage of thread and
needle thread pre-tension, on the thread tension profile and peak tension values of needle thread has been studied during the
stitching cycle. Needle thread tension is measured at two different locations, viz Zone 1 and Zone 2. Zone 1 lies between
guide element 1 and guide element 2, while Zone 2 lies between guide element 3 and needle bar. It is observed that the
values of thread tension peaks developed in Zone 1 is higher than those developed in Zone 2. It is also observed that in a full
cycle of a stitch forming process, tension profile of needle thread has four peaks, out of which tension peaks 1 and 3 occur
due to the action of check spring and these two peaks almost vanishes on removal of check spring. The effect of different
parameters on needle thread tension profile and its peak values are studied in Zone 1. It is found that the major tension peak
values of needle thread reduces with the increase in fabric compressibility and thread extensibility but increases with the
increase in feed rate and needle thread pre-tension.
 
Date 2022-09-05T09:08:02Z
2022-09-05T09:08:02Z
2022-09
 
Type Article
 
Identifier 0971-0426 (Print); 0975-1025 (Online)
http://nopr.niscpr.res.in/handle/123456789/60475
https://doi.org/10.56042/ijftr.v47i3.53563
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJFTR Vol.47(3) [Sep 2022]