| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a leathery sheet-like material having excellent stretchability without a tightening feeling during wearing or clothing, and taking environments into consideration, and to provide a method for producing the same. <P>SOLUTION: The leathery sheet-like material includes: a nonwoven fabric including ultrafine fibers having an average single fiber diameter of not less than 0.3μm and not more than 7μm; and a water-dispersible polyurethane in the interior thereof. In the leathery sheet-like material, the difference between a residual strain ratio R1 after 30 s in any one direction and the residual strain ratio R2 after 1 h is≥2%. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
