发明名称 |
Menetelmä kartongin valmistamiseksi |
摘要 |
The present invention concerns a method for producing a board, wherein a foamed fibrous layer is formed by contacting foam forming of a fibrous slush and said foamed fibrous layer is dried to form a web, wherein polyvinyl alcohol is used as a foaming agent in foam forming. The invention also concerns a system for producing a board and a board with at least one dried foamed fibrous layer, wherein the foamed fibrous layer is made from a mixture of fibrous slush with foam formed from water and polyvinyl alcohol. |
申请公布号 |
FI20145442(A) |
申请公布日期 |
2015.11.16 |
申请号 |
FI20140005442 |
申请日期 |
2014.05.15 |
申请人 |
METSÄ BOARD OYJ |
发明人 |
KINNUNEN, KARITA;HJELT, TUOMO |
分类号 |
D21H17/20;D21F11/00;D21H21/22;D21H21/56 |
主分类号 |
D21H17/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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