发明授权
- 专利标题: Methods employing an impermeable transfer belt in a papermaking machine
- 专利标题(中): 在造纸机中采用不透水转印带的方法
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申请号: US13309192申请日: 2011-12-01
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公开(公告)号: US08206555B2公开(公告)日: 2012-06-26
- 发明人: Ingvar Berndt Erik Klerelid , Hans Ivarsson , Johan Ulf Ragard , Frank Stephen Hada , Paul Douglas Beuther , Jeffrey Dean Holz
- 申请人: Ingvar Berndt Erik Klerelid , Hans Ivarsson , Johan Ulf Ragard , Frank Stephen Hada , Paul Douglas Beuther , Jeffrey Dean Holz
- 申请人地址: SE Karlstad
- 专利权人: Metso Paper Karlstad AB
- 当前专利权人: Metso Paper Karlstad AB
- 当前专利权人地址: SE Karlstad
- 代理机构: Alston & Bird LLP
- 主分类号: D21F11/04
- IPC分类号: D21F11/04
摘要:
A papermaking machine for making paper includes a forming section, a press section, and a drying section. The paper web is pressed between two press members while enclosed between a press felt and a transfer belt having non-uniformly distributed microscopic depressions in its surface, the web following the transfer belt from the press to a transfer point at which the web is transferred via a suction transfer device onto a structuring fabric, the web then being dried on a drying cylinder. The transfer point is spaced a distance D from the press nip selected based on machine speed, a basis weight of the web, and the surface characteristics of the transfer belt, such that within the distance D a thin water film between the web and the transfer belt at least partially dissipates to allow the web to be separated from the transfer belt.
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