| abstract |
Provided is an X-ray contrastable composite yarn that has sufficient strength and flexibility, has little thread breakage even when subjected to weaving and sewing processes, and can be suitably used as a sewing thread. A composite yarn composed of an X-ray contrastable fiber formed of a thermoplastic resin containing a radiopaque agent and a non-contrastant fiber not containing a radiopaque agent, the X-ray The ratio of contrast-enhancing fibers is 90% by mass or less of the total composite yarn, the composite yarn has a strength of 500 cN or more, and the thermoplastic resin forming the X-ray contrast-enhancing fibers contains 20% by mass or more of a thermoplastic elastomer. An X-ray contrastable composite yarn characterized by [Selection] Figure 1 |