Effect of twist coefficient and thermal treatment temperature on the properties of PET yarn

Jia Horng Lin, Po Ching Lu, Jin-Jia Hu, Yueh Sheng Chen, Ching Wen Lou*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Twisting has an influence on not only the strength, luster, softness, and elasticity of the yarns, but also the properties of the resulting fabrics. This study aims to evaluate how the rotor twister speed and the thermal treatment temperature influence the properties of the polyethylene terephthalate (PET) plied yarns and wrap yarns. Both yarn types are made with a twist coefficient of 1, 1.5, or 2, and then thermally treated in an oven at 70, 110, and 150 ° C The resulting plied yarns are wrap yarns are tested for tensile strength and elongation, and their surface is also observed by a stereomicroscope to determine the influences of the two parameters. The results of the experiment show that twist coefficient does not influence the tensile strength nor the elongation. The tensile strength of various plied yarns and wrap yarns is approximately 4.4cN/dtex; the variation in the twist coefficients is too small and thus hardly causes any significant differences in the yarn's properties.

Original languageEnglish
Title of host publicationMachine Design and Manufacturing Engineering II
Pages1046-1049
Number of pages4
DOIs
StatePublished - 22 Oct 2013
Event2013 2nd International Conference on Machine Design and Manufacturing Engineering, ICMDME 2013 - Jeju Island, Korea, Republic of
Duration: 1 May 20132 May 2013

Publication series

NameApplied Mechanics and Materials
Volume365-366
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2013 2nd International Conference on Machine Design and Manufacturing Engineering, ICMDME 2013
CountryKorea, Republic of
CityJeju Island
Period1/05/132/05/13

Keywords

  • Polyethylene terephthalate
  • Thermal treatment
  • Twist coefficient
  • Twisting

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