发明授权
- 专利标题: Method for the generation of smoothness and gloss of a paper web
- 专利标题(中): 纸幅平滑度和光泽度的产生方法
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申请号: US926741申请日: 1992-08-06
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公开(公告)号: US5318670A公开(公告)日: 1994-06-07
- 发明人: Christof Link , Wolf-Gunter Stotz
- 申请人: Christof Link , Wolf-Gunter Stotz
- 申请人地址: DEX Ravensburg
- 专利权人: Sulzer-Escher Wyss GmbH
- 当前专利权人: Sulzer-Escher Wyss GmbH
- 当前专利权人地址: DEX Ravensburg
- 优先权: DEX4126233 19910808
- 主分类号: D21H25/00
- IPC分类号: D21H25/00 ; D21G1/00 ; D21H25/04
摘要:
The invention has as its object the provision of a method and an apparatus for the generation of smoothness and gloss on paper which essentially precludes a re-erection of the surface fibers after the smoothing process. This is achieved in that the surface of a paper web (1) to be smoothed is heated to a temperature above the glass transition temperature of the fibers at the surface of the web without subjecting the web to a press nip, and then these fibers are deformed and fixed in the deformed state in a subsequent process step under the simultaneous action of pressure with shock cooling. Accordingly, there is associated with each surface of the paper web (1) to be smoothed a heating device (2) and also a subsequent cooled body (5, 9, 10) which presses against the surface.
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