| 摘要 |
The present invention provides a method in which a yarn heat treatment device having yarn guides 27 is provided in a heating space in a non-contact type heater H1, having disposed therein a means 28, 28a operating when a yarn 3 is broken and injecting compressed air in the direction in which the yarn 3 is separated from the yarn guides 27. The present invention has disposed therein a means 28, 28a operating upon a yarn broken to inject compressed air in the direction in which the yarn is separated from the yarn guides, so upon a yarn broken, the yarn can be instantaneously separated from the yarn guides and prevented from melting and sticking to the yarn guides. |
