发明申请
- 专利标题： USE OF ACIDIC WATER IN THE MANUFACTURE OF PAPER
- 专利标题（中）： 酸性水在纸张制造中的应用
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申请号： US13642183申请日： 2011-04-21
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公开(公告)号： US20130062028A1公开(公告)日： 2013-03-14
- 发明人: Sakari Saastamoinen , Pentti Virtanen
- 申请人： Sakari Saastamoinen , Pentti Virtanen
- 申请人地址： FI Pargas
- 专利权人： NORDKALK OY AB
- 当前专利权人： NORDKALK OY AB
- 当前专利权人地址： FI Pargas
- 优先权： FI20105437 20100422
- 国际申请： PCT/FI2011/050366 WO 20110421
- 主分类号： D21H23/00
- IPC分类号： D21H23/00 ; D21H17/29 ; D21H17/68 ; D21H17/56 ; D21H17/54 ; D21H17/13 ; D21H17/66 ; D21H17/37
摘要：
The present invention relates to a method of manufacturing paper or cardboard, wherein paper or board pulp is diluted with an aqueous composition, which is formed from colloidal-size particles of carbonate and bicarbonate, and other states of carbonate in an aqueous solution, so that the pH in the aqueous solution remains essentially at a value of 6.0-8.3 during the formation, and water is removed from the pulp by draining, pressing, and drying. The invention also relates to a method of manufacturing the aqueous composition used for this purpose.
公开/授权文献
- US08906201B2 Use of acidic water in the manufacture of paper 公开/授权日：2014-12-09
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