发明名称 |
Painopaperin raaka-aine, menetelmä sen valmistamiseksi ja painopaperi |
摘要 |
The object of the present invention is a method for making mechanical pulp, such as thermomechanical or chemi-thermomechanical stock. The mechanical pulp is utilised as a raw material for printing paper, and its freeness value is 30-70 ml CSF. According to the method, the refined stock is screened in several stages into accept and reject stock portions. The stock is screened at a consistency of not less than 10%. |
申请公布号 |
FI19992642(A) |
申请公布日期 |
2001.06.10 |
申请号 |
FI19990002642 |
申请日期 |
1999.12.09 |
申请人 |
UPM-KYMMENE CORPORATION, |
发明人 |
TIENVIERI,TAISTO;GUMMERUS,MARKKU |
分类号 |
D21C3/22;D21B1/12;D21C9/00;D21D5/02;D21D5/06;D21H11/08 |
主分类号 |
D21C3/22 |
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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