Article
Licensed
Unlicensed Requires Authentication

Incremental Drawing of Polyethylene-terephthalate Partially Oriented Yarn (PET-POY)**

  • , and
Published/Copyright: May 27, 2013
Become an author with De Gruyter Brill
Submit Manuscript Author Information
International Polymer Processing
From the journal International Polymer Processing Volume 5 Issue 1

Abstract

Polyethylene terephthalate (PET) is generally melt spun to give yarns which are then drawn at an elevated temperature since the glass transition (Tg) of PET is 70 °C. Incremental drawing of synthetic fibers involves the drawing of as-spun yarns in several discrete steps along the surface of two corotating conical bodies. For drawing at an elevated temperature a chamber type of heating system was designed in which the drawing bodies were enclosed and a constant temperature maintained. Multifilament PET-POY (Polyethylene Terephthalate-partially oriented yarn) of 130 denier/34 filaments was drawn at 300 m/min with the draw-ratios of 1.76, 1.84 and 2.00 respectively by incremental drawing process (IDP) as well as by the conventional drawing process (CDP) and the properties compared. It was seen that the mechanical and structural properties were significantly better in case of IDP than CDP at equivalent draw-ratios. The mechanical property results are explained on the basis of structural development during drawing.

* Mail address: Prof. Ashok Misra, Centre for Materials Science and Technology, Indian Institute of Technology, New Delhi-110016, India.

** Paper presented at the Fourth Annual Meeting of Polymer Processing Society at Florida, U.S.A., May 1988.

Published Online: 2013-05-27
Published in Print: 1990-03-01

© 1990, Carl Hanser Verlag, Munich

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. The Synthesis of Polymer Processing Machines
  5. Non-isothermal Extrusion of Composite Materials
  6. Effect of Spinline Quenching on Structure Development in High-speed Melt Spinning of PET
  7. Structure Development in Melt Spinning and Drawing of Nylon-11 and Nylon-12 Fibers
  8. Incremental Drawing of Polyethylene-terephthalate Partially Oriented Yarn (PET-POY)**
  9. Naphthalene-ring Containing Thermotropic Copolyester and its Blends with PET
  10. Drawing Behavior of Solution Modified Polyethylene
  11. Rheological Properties and Morphological Structure of Blended and Filled Nylon-6
  12. Film Blowing of Thermotropic Liquid Crystalline Polymers
  13. Single and Double Bubble Tubular Film Extrusion of Polyethylene Terephthalate
https://doi.org/10.3139/217.900032

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. The Synthesis of Polymer Processing Machines
  5. Non-isothermal Extrusion of Composite Materials
  6. Effect of Spinline Quenching on Structure Development in High-speed Melt Spinning of PET
  7. Structure Development in Melt Spinning and Drawing of Nylon-11 and Nylon-12 Fibers
  8. Incremental Drawing of Polyethylene-terephthalate Partially Oriented Yarn (PET-POY)**
  9. Naphthalene-ring Containing Thermotropic Copolyester and its Blends with PET
  10. Drawing Behavior of Solution Modified Polyethylene
  11. Rheological Properties and Morphological Structure of Blended and Filled Nylon-6
  12. Film Blowing of Thermotropic Liquid Crystalline Polymers
  13. Single and Double Bubble Tubular Film Extrusion of Polyethylene Terephthalate
Downloaded on 13.4.2026 from https://www.degruyterbrill.com/document/doi/10.3139/217.900032/html
Scroll to top button