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公开(公告)号：EP1885467A2
公开(公告)日：2008-02-13
申请号：EP06725960.6
申请日：2006-05-22
申请人： Metso Paper, Inc.
IPC分类号： B01D19/00
CPC分类号： D21H19/00 , B01D19/0026
摘要： The invention relates to a method and apparatus for exhausting gas from a coating material. The coating material is fed in the bottom part area of a drum (3) rotating around an essentially vertical axis inside a vacuum tank (1), whereby the rotating motion of the drum causes the coating material to rise up the inner wall of the drum and to discharge from the upper edge of the drum as a thin film against the inner wall of a vacuum tank, wherefrom the coating material flows downwards. In the method, the coating material is arranged to rise up the wall of the drum stepwise, so that the coating material will form a thin veil-like film on at least two different step levels (10- 12), whereupon the gas bubbles in the coating material will break and be discharged from the coating material.
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公开(公告)号：EP1851381B1
公开(公告)日：2012-05-16
申请号：EP06708962.3
申请日：2006-02-10
申请人： Metso Paper, Inc.
发明人： VATANEN, Heikki
摘要： The present invention relates to curtain coating method for coating a material web (W). In the method, coating agent (2) is applied from a curtain coater (1) located above the material web (W), moving supported by a support element (3), as a curtain-like flow (2) to a point of impact (22) on the surface of the material web (W), boundary layer air (4) being removed from the surface of the material web (W) at a point in front of the point of impact (22). Air (5) is supplied to the surface of the moving material web (W) at an oblique angle with respect to the material web (W), so that the airflow (5) has an opposite component with respect to the direction of travel of the material web (W). The pressure level in the impact point area (22) is controlled by supplying stabilising air (6) from a point in front of the impact point (22) to the impact point area (22) at an oblique angle with respect to the direction of travel of the material web (W), so that the airflow (6) has a component parallel to the direction of travel of the material web (W), and by removing the stabilising air (7) from a point before the stabilising air (7) inlet. A further object of the present invention is a device applying the method.
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3.发明公开APPARATUS FOR REGULATING THE APPLICATION WIDTH OF A SLIDE-FED CURTAIN COATER 有权一种用于控制的一个应用程序上的滑动帘POWERED
公开(公告)号：EP1841918A1
公开(公告)日：2007-10-10
申请号：EP05813215.0
申请日：2005-12-02
申请人： Metso Paper, Inc.
发明人： GRASTEN, Markku , AALTO, Kai , KOSKINEN, Jukka , LIPPONEN, Juha , NURMIAINEN, Timo , VATANEN, Heikki
CPC分类号： B05C5/008 , B05C11/1039 , D21H23/48
摘要： The invention relates to an apparatus for regulating the application width of a slide- fed curtain coater, said curtain coater having at least one nozzle slot (30), which opens (31) onto a flow plane, the leading edge of said flow plane providing a feeding lip (33). The apparatus comprises a laterally movable regulating mechanism (40), which is disposed in the vicinity of both edges of the flow plane and which has a blade element (42) defining the lateral extent of a coating color (1) flowing from the nozzle slot (31), and a return flow guide element (41, 50) for deflecting the flow of coating color emerging from a portion of the nozzle slot extending beyond the application width defined by the blade element (42) back to machine circulation or for disposal.
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4.发明公开METHOD FOR REMOVING AN EDGE BANK FORMED AT THE EDGE OF A COATED WEB IN CURTAIN COATING EFFECTED AS A DRY EDGE COATING PROCESS 审中-公开方法用于去除AT的涂布边缘列车作为干EDGE涂装工艺进行帘式涂布成形的边缘部OVERHANG
公开(公告)号：EP1838456A1
公开(公告)日：2007-10-03
申请号：EP05818866.5
申请日：2005-12-22
申请人： Metso Paper, Inc.
CPC分类号： B05C11/06 , B05C1/0843 , B05C5/005 , D21H23/48
摘要： The invention relates to a method and apparatus for removing an edge bank formed at the edge of a coated web (30) in curtain coating effected as a dry edge coating process. The method comprises subjecting the edge bank to fluid blasting by means of elements (31-32) disposed downstream of a coating curtain application point for removing and/or spreading the edge bank for a thinner formation, said blasting being delivered from a center line direction of the web (30) towards the web edge.
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公开(公告)号：EP1599632A1
公开(公告)日：2005-11-30
申请号：EP04717121.0
申请日：2004-03-04
申请人： Metso Paper Inc.
发明人： VATANEN, Heikki , PITKÄNIEMI, Tapio , PÄIVÄ, Petri , LAUKKANEN, Tapio , LUOSTARINEN, Iiro , NURMIAINEN, Timo , VIITANEN, Markku
CPC分类号： D21H23/78 , B05C3/18 , B05C11/1013 , B05C11/1039 , D21H23/48 , D21H23/56 , G05D7/0676
摘要： The invention relates to a method for feeding a treating agent to an application apparatus (40) used for applying coating colour or surface size directly or indirectly to a paper or board web, in which method part of the treating agent fed to the application apparatus (40) is returned via a bypass line (24) to the treating agent feed system and part of it is passed into an application chamber in the application apparatus (40), from which application chamber substantially all treating agent fed into it is applied to a moving web or to a transfer surface. The method comprises the steps of measuring the flow of treating agent (Q) to the application apparatus (40) and controlling the feeding of the treating agent on the basis of the measured flow (Q) and of a predetermined set value (Qo), which set value has been selected according to the desired amount of treating agent to be applied to the moving web or transfer surface.
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6.发明授权APPARATUS FOR REGULATING THE APPLICATION WIDTH OF A SLIDE-FED CURTAIN COATER 有权一种用于控制的一个应用程序上的滑动帘POWERED
公开(公告)号：EP1841918B1
公开(公告)日：2013-05-22
申请号：EP05813215.0
申请日：2005-12-02
申请人： Metso Paper, Inc.
发明人： GRASTEN, Markku , AALTO, Kai , KOSKINEN, Jukka , LIPPONEN, Juha , NURMIAINEN, Timo , VATANEN, Heikki
CPC分类号： B05C5/008 , B05C11/1039 , D21H23/48
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公开(公告)号：EP1851381A1
公开(公告)日：2007-11-07
申请号：EP06708962.3
申请日：2006-02-10
申请人： Metso Paper, Inc.
发明人： VATANEN, Heikki
摘要： The present invention relates to curtain coating method for coating a material web (W). In the method, coating agent (2) is applied from a curtain coater (1) located above the material web (W), moving supported by a support element (3), as a curtain-like flow (2) to a point of impact (22) on the surface of the material web (W), boundary layer air (4) being removed from the surface of the material web (W) at a point in front of the point of impact (22). Air (5) is supplied to the surface of the moving material web (W) at an oblique angle with respect to the material web (W), so that the airflow (5) has an opposite component with respect to the direction of travel of the material web (W). The pressure level in the impact point area (22) is controlled by supplying stabilising air (6) from a point in front of the impact point (22) to the impact point area (22) at an oblique angle with respect to the direction of travel of the material web (W), so that the airflow (6) has a component parallel to the direction of travel of the material web (W), and by removing the stabilising air (7) from a point before the stabilising air (7) inlet. A further object of the present invention is a device applying the method.
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公开(公告)号：EP1841917A1
公开(公告)日：2007-10-10
申请号：EP05813209.3
申请日：2005-12-02
申请人： Metso Paper, Inc.
摘要： The invention relates to a supporting arrangement in the curtain coating of a paper/board web. The arrangement comprises supporting elements placed under a web to be coated, including a relatively small-diameter backing roll (6) downstream of the impact point and a bearing element (5), which is equipped with sliding means (7, 8) and located upstream of the roll. The bearing element (5) is adjustable for supporting a web (W) optionally either upstream of an impact point (12), whereby the coating is effected on an unsupported web, or in line with the impact point (12), whereby the coating is effected on a supported web.
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公开(公告)号：EP1769121A1
公开(公告)日：2007-04-04
申请号：EP05771631.8
申请日：2005-07-18
申请人： Metso Paper, Inc.
发明人： VATANEN, Heikki
IPC分类号： D21H23/48
CPC分类号： D21H23/48
摘要： The invention relates to a curtain-coating unit (1) for coating a material web (6) arranged to move with a coating agent, which curtain-coating unit (1) includes feed elements (2) arranged above the web (6), for feeding the coating agent to the surface of the web (6) as a curtain-like flow (10). In addition, the coating unit (1) includes elements (7), by means of which the of the coating-agent feed elements (2) can be rotated around an axis (12) in the cross direction of the web.
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