发明名称 |
FOERFARANDE FOER RENING AV AVFALLSPAPPER |
摘要 |
<p>A fibrous suspension prepared from waste paper by pulping (at 1), and cleansing by sorting in a screen sorter and/or cyclone (2), is temporarily heated before and/or during its passage through a disintegrating device (7) and prior to the separation of printing ink by flotation (8) or washing (and optically bleeching). The thickened suspension is maintained at temperatures above 85 DEG C during its passage through the disintegrating device (7). This allows types of waste paper, such as xerographic and offset-printed papers, which are difficult to de-ink to be cleaned, and therefore used for the production of fibrous material for paper manufacture. <IMAGE></p> |
申请公布号 |
FI830115(A0) |
申请公布日期 |
1983.01.13 |
申请号 |
FI19830000115 |
申请日期 |
1983.01.13 |
申请人 |
J.M. VOITH GMBH |
发明人 |
ORTNER, HERBERT;PFALZER, LOTHAR;BERGFELD, DIETRICH;FISCHER, SIEGBERT |
分类号 |
D21B1/32;D21C5/02;D21D5/00;D21F1/70;(IPC1-7):D21C/ |
主分类号 |
D21B1/32 |
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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