| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide scent-lingering fibers capable of maintaining scent even when a long time passes after absorbing a perfume component.SOLUTION: In the scent-lingering polyurethane fibers, the total of urethane group concentration and urea group concentration of the polyurethane fibers is 1.48 mol/kg or more and 3.0 mol/kg or less.</p> |
