发明名称 |
Mercerization process and apparatus |
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).
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申请公布号 |
US4520520(A) |
申请公布日期 |
1985.06.04 |
申请号 |
US19830462909 |
申请日期 |
1983.02.01 |
申请人 |
JOHNSTON, LAWTON L.;BRANDON, CRAIG A. |
发明人 |
JOHNSTON, LAWTON L.;BRANDON, CRAIG A. |
分类号 |
D06B7/08;(IPC1-7):D06B7/08;D06B23/20 |
主分类号 |
D06B7/08 |
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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