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1 Terylene
Synthetic textile fibre produced from a polyester derived essentially from terepthalic acid and ethylene glycol, it is the result of research work initiated by Calico Printers' Association, and carried out in their laboratories by Mr. J. R. Whinfield, assisted by Dr. J. T. Dickson and others. The qualities of polyester, and its potential value for fibre making, were recognised by the C.P.A., and patents covering the inventions were taken out by them. The subsequent research work on the chemical polymer and its conversion into a textile fibre was entrusted to Imperial Chemical Industries, who acquired an exclusive licence covering the whole world outside the U.S.A. From a given sample of the parent polymer it is possible to produce multi-filament yams of widely different characteristics by varying the physical and mechanical operations of the spinning and processing. Thus, for example, it is possible to obtain from the same polymer a yarn of low extensibility, but with outstandingly high strength (8 grams per denier or higher), or one of increased extensibility, but with lower strength. Notable property of " Terylene " is high resistance to light and heat and high initial elastic modulus.
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