A high-density region-containing sheet having a high-density region and a low-density region, a sheet member produced by joining the high-density region of the high-density region-containing sheet to an elastic member, and a disposable diaper using the sheet member as its chassis are provided. A sheet...http://www.google.se/patents/US8105303?utm_source=gb-gplus-sharePatent US8105303 - Sheet member, high-density region-containing sheet manufacturing method and disposable diaper using sheet member
