Study on the bagging behavior of knitted fabrics by shape memory polyurethane fiber

Yan Liu, Jing Lu, Jinlian Hu, Aggie Chung

Research output: Journal article publicationJournal articleAcademic researchpeer-review

14 Citations (Scopus)


The shape memory polyurethane (SMPU) fabrics were knitted with different SMPU fiber contents for the investigation of its bagging behaviour in this paper. The bagging deformation and recovery of these SMPU-knitted fabrics were determined at different temperatures to evaluate its temperature sensitivity. Our experimental results show that the bagging behavior of the SMPU-knitted fabrics is highly correlated with the amount of SMPU fibers knitted inside the SMPU fabrics. The switching temperature of the SMPU-knitted fabrics is found to be above the phase transfer temperature of SMPU. A comparison between Lycra and SMPU-knitted fabrics is also conducted to validate the shape memory bagging behavior of SMPU-knitted fabrics.
Original languageEnglish
Pages (from-to)1230-1236
Number of pages7
JournalJournal of the Textile Institute
Issue number11
Publication statusPublished - 1 Nov 2013


  • bagging behavior
  • knitted fabric
  • recovery
  • shape memory
  • SMPU fiber

ASJC Scopus subject areas

  • Materials Science (miscellaneous)
  • Polymers and Plastics
  • Industrial and Manufacturing Engineering
  • Agricultural and Biological Sciences(all)

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