发明名称 Method of making paper
摘要 The disclosure relates to a method for making coated or uncoated paper that has small sized calcium carbonate on its surface. The calcium carbonate is placed on the paper web at the size press, by a spray or at a coating operation. The calcium carbonate can have a maximum mean average size of 200 nm. Another embodiment has a maximum mean average size of 100 nm. Another embodiment has a maximum mean average size of 50 nm. Different weight levels may be placed on the paper.
申请公布号 EP1548187(A2) 申请公布日期 2005.06.29
申请号 EP20040257802 申请日期 2004.12.15
申请人 WEYERHAEUSER COMPANY 发明人 DOUGHERTY, MICHAEL J.;PARK, DAVID W.;NEOGI, AMAR N.
分类号 D21H19/38;D21H17/63;D21H17/66;D21H17/67;D21H19/36;D21H21/16;D21H21/52;D21H23/22;D21H23/28;D21H23/50;(IPC1-7):D21H19/38 主分类号 D21H19/38
代理机构 代理人
主权项
地址