Journal
INTERNATIONAL JOURNAL OF CLOTHING SCIENCE AND TECHNOLOGY
Volume 21, Issue 1, Pages 64-73Publisher
EMERALD GROUP PUBLISHING LIMITED
DOI: 10.1108/09556220910923764
Keywords
Textile technology; Temperature; Textile manufacturing process; Fabric testing
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Purpose - The purpose of this paper is to understand the recovery mechanism of poly(trimethylene terephthalate) (PTT) shape memory fabrics. Design/methodology/approach - Tests were designed to study the effects of force, temperature and their combinations on the fabrics' crease recoveries. In the test a cantilever device and an ironing force which simulated people ironing their clothes were used, respectively. Findings - Temperature was found to have little effect on the recovery of both the warp and filling of the fabrics. Crease recoveries did not improve significantly when the temperature was increased to above the polymer's glass transition. However, forces, applied in primarily compressive and tensile modes to simulate ironing and hand stroking actions, were found to be very effective in the fabrics' crease recoveries. Recoveries were 81-87 per cent even when the applied force was very small, at 5 N/cm(2). When forces were applied at elevated temperatures, just below and above the polymer's glass transition, there were no significant improvements in crease recoveries. Therefore, force was the main factor in PTT shape memory fabrics' recovery mechanism for the fabrics to return to their initial shapes. Originality/value - The results suggest that PTT shape memory fabric has excellent shape recoverability and easy care property and it has large application potentiality.
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