| 摘要 |
The present invention relates to a polyester product excellent in resilient elasticity, shape retainability and shape stability, and a process for producing the same.The invention provides a polyester product with high resilient elasticity, shape retainability, and shape stability, which is produced by heat-treating a product comprising polyester fibers or a film prepared by taking up a molten polyester at a take-up speed of 2000 m/min to 4000 m/min, in wet heat and/or dry heat at not lower than 120° C. with the product maintained in a loose or constrained condition without being drawn.The product is very suitable, for example, as a collar interlining cloth of a shirt, a base fabric of a shirt, or a fabric of a lady's dress, etc.
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