Abstract
Poly(butylene terephthalate) (PBT) yarn was subjected to heat setting at different temperatures for various time periods under taut conditions. Properties such as breaking load, critical dissolution time, dyeing with disperse dyes, etc. were evaluated and related to the changes taking place in the internal fiber structure. A temperature of about 140°C and a time period of about 60 seconds was found to be optimum for attaining the dimensional stability without affecting the useful textile properties of PBT filament yarn significantly.
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Mathur, M., Shukla, S. & Sawant, P. Heat Setting of Poly(butylene terephthalate). Polym J 28, 189–192 (1996). https://doi.org/10.1295/polymj.28.189
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DOI: https://doi.org/10.1295/polymj.28.189