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1. 发明授权

US4520520A Mercerization process and apparatus 失效
标题翻译：丝光过程和仪器
公开(公告)号：US4520520A
公开(公告)日：1985-06-04
申请号：US462909
申请日：1983-02-01
申请人： Lawton L. Johnston , Craig A. Brandon
发明人： Lawton L. Johnston , Craig A. Brandon
IPC分类号： D06B7/08 , D06B23/20
CPC分类号： D06B7/08
摘要： In a process for mercerizing cellulosic cloth by treating the cloth with 3-10% caustic solution at the boil in a boilout stage, washing the cloth after treatment in the boilout stage and treating the washed cloth with 20-25% caustic in a mercerizer, an improvement comprises the steps of:(a) collecting overflow from the boilout stage, contaminated with additives used in weaving or knitting the cloth;(b) treating the contaminated overflow from the boilout stage by hyperfiltration to produce a recovered fraction of relatively pure caustic solution and a concentrate fraction containing additives used in weaving or knitting the cloth;(c) washing the cloth after treatment in the boilout stage with the recovered fraction of relatively pure caustic from step (b).
摘要翻译：在沸腾阶段用煮沸的3-10％苛性碱溶液处理纤维素纤维丝的过程中，在煮沸阶段处理后洗涤布，并在丝光机中处理20-25％苛性碱的洗涤布，改进措施包括以下步骤：（a）从开花阶段收集溢出物，被编织或织布所用的添加剂污染; （b）通过过滤处理来自沸腾阶段的污染溢流，以产生相对纯碱苛性溶液的回收部分，以及含有用于编织或编织布的添加剂的浓缩物部分; （c）在沸腾阶段处理后，用步骤（b）中相对纯碱的回收馏分洗涤布。

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