公开(公告)号：US06576326B2

公开(公告)日：2003-06-10

申请号：US09994352

申请日：2001-11-26

申请人： Osamu Hatano ,  Eisaku Katoh ,  Masayuki Ushiku ,  Yoshinori Tsubaki ,  Hiroto Itoh

发明人： Osamu Hatano ,  Eisaku Katoh ,  Masayuki Ushiku ,  Yoshinori Tsubaki ,  Hiroto Itoh

IPC分类号： B32B2714

CPC分类号： B41M5/52 ,  B41M5/502 ,  B41M5/508 ,  B41M5/5218 ,  B41M5/5236 ,  B41M5/5245 ,  B41M5/5254 ,  Y10T428/24802

摘要： An ink jet recording sheet comprising a support having thereon a porous ink absorptive layer comprising, inorganic particles, polyvinyl alcohol and a zirconium compound or an aluminum compound, wherein the ink absorptive layer exhibits a concentration gradient of said zirconium compound or the aluminum compound, wherein the concentration increases from the surface of the support towards the surface of the ink absorptive layer.