发明授权
US07235157B2 Method for controlling one or more surface quality variables of a fiber web in a shoe calender
失效
用于控制鞋砑光机中纤维网的一个或多个表面质量变量的方法
- 专利标题: Method for controlling one or more surface quality variables of a fiber web in a shoe calender
- 专利标题(中): 用于控制鞋砑光机中纤维网的一个或多个表面质量变量的方法
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申请号: US10362301申请日: 2001-08-23
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公开(公告)号: US07235157B2公开(公告)日: 2007-06-26
- 发明人: Tapio Mäenpää , Kalle Hasu , Matti Lares , Pekka Koivukunnas
- 申请人: Tapio Mäenpää , Kalle Hasu , Matti Lares , Pekka Koivukunnas
- 申请人地址: FI Helsinki
- 专利权人: Metso Paper, Inc.
- 当前专利权人: Metso Paper, Inc.
- 当前专利权人地址: FI Helsinki
- 代理机构: Ware, Fressola, Van der Sluys & Adolphson LLP
- 优先权: FI20001872 20000824
- 国际申请: PCT/FI01/00742 WO 20010823
- 国际公布: WO02/16694 WO 20020228
- 主分类号: D21F11/00
- IPC分类号: D21F11/00
摘要:
The invention relates to a method for controlling a surface quality variable (300) in one or more fiber webs (3) in a shoe calender (1) comprising one or more calender nips. In each calender nip of the shoe calender, the overall loading pressure of the shoe element (8) and the loading pressure difference between the leading edge (8′) and the trailing edge (8″) of the shoe element are controlled so as to achieve minimum difference between the determined values (300″) for the surface quality variables of the fiber web and the set values (300′) for the same quality variables after the shoe calender.
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