Adsorption kinetics of anionic direct dyes

被引：0
|
作者：
Falkenberg, W
Wenderoth, E
Kleemann, S
机构：
[1] BAYER AG,LEVERKUSEN,GERMANY
[2] FACHSCH MUNCHEN,MUNICH,GERMANY
来源：
WOCHENBLATT FUR PAPIERFABRIKATION | 1995年 / 123卷 / 23-24期
关键词：
D O I：
暂无
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
Reducing effluent staining and minimising broke are significant criteria which can be achieved by an ideal dying process. This can further be optimised by dye application pior to the headbox enabling also last colour correction. Based on this background the adsorption kinetics of anionic direct dyes by dyeing just before the fan pump were analysed. A special dyeing apparatus was constructed to reproduce mill conditions. A selection of 7 dyes with similar structure but different molecular weight and anionic charge was analysed. With these dyes dyeing trials under varying contact times as 5, 15, 30 and 180 seconds were carried out The amount of dye, fixing agent (charge modification), temperature and water hardness was changed. The results provide new information on about substantivity and kinetics of the dye adsorption.
引用
收藏
页码：1104 / 1111
页数：8
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