发明名称 Multi-layer paper web and a method of forming it
摘要 A method of making a multilayer paper web, wherein at least two paper sheets are formed and dried separately to a dry content of no more than 80% by weight, imparting a three-dimensional pattern of alternating raised and recessed portions in the paper sheets during drying, combining the paper sheets into a multilayer web, in which void volumes are created between the raised and recessed portions of the combined sheets and drying the multilayer web.
申请公布号 US2003116292(A1) 申请公布日期 2003.06.26
申请号 US20020315068 申请日期 2002.12.10
申请人 SCA HYGIENE PRODUCTS AB 发明人 HOLLMARK HOLGER
分类号 D21F9/00;D21F11/00;D21F11/04;D21F11/14;(IPC1-7):D21F11/00;D21F3/02 主分类号 D21F9/00
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