Abstract
This paper studied the configuration of spinning technology of PTT (polytrimethylene terephthalate)/PET (polyethylene terephthalate) bicomponent fiber via measurements obtained from the elasticity testing of fabrics made of them. The effects of four main spinning parameters on the elasticity of two series, named Z and Q, of interwoven fabrics were explained, including different ways of binding, intrinsic viscosity differences, and the percentage contents of PTT and the temperature of the hot plate. The experimental results indicated that the elongation ratios of the fabrics, which were made of PTT/PET bicomponent filaments spun by the parallel bound method, with larger differences in the intrinsic viscosity of the two ingredients and a higher temperature of the hot plate, were much larger than that of its corresponding counterparts. The elastic modulus ratio (m) and the PTT contents exhibited a cross-impact on crimp curves of PTT/PET bicomponent filament fabrics. The elongation ratios of fabrics made of PTT/PET bicomponent filaments would augment effectively as the hot plate temperature increased within a temperature range under the same posttreatment.
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