发明授权
- 专利标题: Varying profile cylinder blanket
- 专利标题(中): 不同的轮廓筒
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申请号: US09593022申请日: 2000-06-13
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公开(公告)号: US06283027B1公开(公告)日: 2001-09-04
- 发明人: James B. Vrotacoe , Charles Reif Hammond , Daniel Paul Gagne
- 申请人: James B. Vrotacoe , Charles Reif Hammond , Daniel Paul Gagne
- 主分类号: B41F1310
- IPC分类号: B41F1310
摘要:
A blanket that has a varying profile and a method for its use is disclosed. By varying the profile of the blanket cylinder and/or blanket, either in terms of its material properties or its thickness, the blanket, when placed about a blanket cylinder, corrects for unwanted variation in the velocity profile present in the web. Such velocity profile variations, if not taken into account, may cause wrinkling of a web passing over the blanket cylinder in a printing press and thus cause misregistered images. In a further embodiment, the blanket cylinder may be provided with a varying profile.
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