基本信息:
- 专利标题： RAW MATERIAL FOR PRINTING PAPER, METHOD TO PRODUCE IT AND PRINTING PAPER
- 专利标题（中）：用于印刷纸的原料，生产和印刷纸的方法
- 申请号：PCT/FI2000/001055 申请日：2000-12-01
- 公开(公告)号：WO01046516A1 公开(公告)日：2001-06-28
- 主分类号： D21C3/22
- IPC分类号： D21C3/22 ; D21B1/12 ; D21D5/02 ; D21B1/14
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 used as a raw material for printing paper, and its freeness value is 30-70 ml CSF. The stock refined by the method is screened in several stages to form accept and reject stock portions. The wood raw material is refined at the first stage of refining at a superatmospheric pressure of over 400 kPa to form a stock that has a freeness value of 250-700 ml CSF.
摘要（中）：
本发明的目的是制造机械纸浆的方法，例如热机械或化学热机械原料。 机械纸浆用作打印纸的原料，其游离度为30-70ml CSF。 通过该方法精炼的原料分几个阶段进行筛选以形成接收和拒收原料部分。 木材原料在超过400kPa的超大气压下在精炼的第一阶段被精炼，以形成游离度值为250-700ml CSF的原料。
IPC结构图谱:
| D | 纺织；造纸 |
| --D21 | 造纸；纤维素的生产 |
| ----D21C | 从含纤维素原料中除去非纤维素物质生产纤维素；制浆药液的再生；所需设备 |
| ------D21C3/00 | 含纤维素原料制浆 |
| --------D21C3/22 | .制浆工艺方法的其他特征 |