Difference between revisions of "Bleaching of wool"
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| align="center" style="background:#2266CC;"|'''Literature''' | | align="center" style="background:#2266CC;"|'''Literature''' | ||
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| − | | style="background:#AACCEE;"| H2o2 bleaching|| 50 (optitional)|||| align="center"| water|| 3-4 h|| align="center"| alkaline or acid|| align="center"| peroxide|| acid bleaching is said to achieve better results; "Pestrogen W" process, BASF|| rowspan="3" align="center"| Lexikon der Textilveredlung | + | | style="background:#AACCEE;"| H2o2 bleaching|| align="center"| 50 (optitional)|||| align="center"| water|| align="center"| 3-4 h|| align="center"| alkaline or acid|| align="center"| peroxide|| align="center"| acid bleaching is said to achieve better results; "Pestrogen W" process, BASF|| rowspan="3" align="center"| Lexikon der Textilveredlung |
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| − | | style="background:#AACCEE;"| 2nd step after oxidative bleaching, to get full-white|||||| align="center"| water||||||insufficient alone; just for brightening or in combination with peroxide bleaching | + | | style="background:#AACCEE;"| 2nd step after oxidative bleaching, to get full-white|||||| align="center"| water|||||||| align="center"| insufficient alone; just for brightening or in combination with peroxide bleaching |
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| − | | style="background:#AACCEE;"| 3rd step|||||| align="center"| water||||||||to get H2O2 out of the wool | + | | style="background:#AACCEE;"| 3rd step|||||| align="center"| water|||||||| align="center"| to get H2O2 out of the wool |
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Revision as of 10:20, 16 November 2010
Back to EFFICIENCY FINDER FOR TEXTILE INDUSTRY
- Wool bleaching Flowsheet
- Typical parameters of the process
| Techniques | Temperature [°C] | Pressure (bar) | Heat transfer medium | Residence Time | pH | Bleaching agent | Additional information | Literature |
| H2o2 bleaching | 50 (optitional) | water | 3-4 h | alkaline or acid | peroxide | acid bleaching is said to achieve better results; "Pestrogen W" process, BASF | Lexikon der Textilveredlung | |
| 2nd step after oxidative bleaching, to get full-white | water | insufficient alone; just for brightening or in combination with peroxide bleaching | ||||||
| 3rd step | water | to get H2O2 out of the wool |
