| abstract |
The present invention relates to a method for preparing spandex with an improved unwinding property and, more specifically, to a method for preparing spandex by injecting polyethylene glycol into a polyurethane urea solution, which is a spinning solution, thereby effectively improving an irregular ballooning phenomenon, a tension spike phenomenon and the like when unwinding spandex, and improving an unwinding property without an adverse effect on other physical properties such as adhesive characteristics of spandex with a hot melt. |