发明授权
US6083346A Method of dewatering wet web using an integrally sealed air press
失效
使用整体密封的空气压榨机对湿纸幅进行脱水的方法
- 专利标题: Method of dewatering wet web using an integrally sealed air press
- 专利标题(中): 使用整体密封的空气压榨机对湿纸幅进行脱水的方法
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申请号: US962368申请日: 1997-10-31
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公开(公告)号: US6083346A公开(公告)日: 2000-07-04
- 发明人: Michael Alan Hermans , Shan Liang-Chen , Fung-jou Chen , Frank Gerald Druecke , Robert Irving Gusky , Frank Stephen Hada , Richard Joseph Kamps , Charles Robert Tomsovic
- 申请人: Michael Alan Hermans , Shan Liang-Chen , Fung-jou Chen , Frank Gerald Druecke , Robert Irving Gusky , Frank Stephen Hada , Richard Joseph Kamps , Charles Robert Tomsovic
- 申请人地址: WI Neenah
- 专利权人: Kimberly-Clark Worldwide, Inc.
- 当前专利权人: Kimberly-Clark Worldwide, Inc.
- 当前专利权人地址: WI Neenah
- 主分类号: D21F1/76
- IPC分类号: D21F1/76 ; D21F1/48 ; D21F1/52 ; D21F5/02 ; D21F5/14 ; D21F5/18 ; D21F11/00 ; D21F11/14 ; D21H27/00 ; D21F3/00
摘要:
A tissue sheet is made using a modified wet pressing process employing an integrally sealed air press. After initial formation and conventional vacuum dewatering, the wet web is conformed to the surface contour of a relatively coarse fabric to give the web a textured surface. By creating a pressure differential across the web of at least 30 inches of mercury and an air stream through the web of at least 500 SCFM/in.sup.2, the air press noncompressively dewaters the wet web to a consistency of about 30 to about 40 percent prior to a Yankee dryer. The web is dried to substantially preserve its three-dimensional, throughdried-like texture. The resulting web has an exceptionally high degree of bulk and absorbency not previously found in wet-pressed products.
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