Possibilities to reduce red discoloration of deinked pulp

被引:0
|
作者
Muller-Mederer, Christoph [1 ,2 ]
Putz, Hans-Joachim [1 ,2 ]
Gottsching, Lothar [1 ,2 ]
机构
[1] Institut für Papierfabrikation, Tech. Universität Darmstadt, Alexander-Straße 8, 64283 Darmstadt
[2] Institut fur Papierfabrikation, Darmstadt, Germany
来源
Wochenblatt fuer Papierfabrikation | 2002年 / 130卷 / 10期
关键词
Agents - Bleaching - Deinking - Discoloration - Flotation - Natural fibers - Pigments - Recycling;
D O I
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中图分类号
学科分类号
摘要
Red proof prints were prepared and their deinkability evaluated by determining the ink removal rate in selective flotation. Furthermore, optical properties of the original and deinked proof prints were compared. The inks used in gravure printing differed in colorant systems and binder contents. One of the proof prints was selected to study the effectiveness of reductive and oxidative bleaching agents in color stripping. All the possibilities of using those processes to reduce red discoloration of deinked pulp are discussed.
引用
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页码:631 / 637
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