| 摘要 |
<p>According to a method for manufacturing a heat resistant spun yarn, a heat resistant spun yarn having improved elasticity can be manufactured even through low temperature heat treatment as compared to a conventional technology. The present invention includes: a single yarn manufacturing process of twisting a heat resistant fiber; a first heat setting process of applying heat to a single yarn; a ply yarn manufacturing process of combining at least two single yarns subjected to the first heat setting process and twisting the single yarns; a second heat setting process of applying heat to a ply yarn; a reverse twisting process of twisting the ply yarn; and a third heat setting process of applying heat to the ply yarn.</p> |
