Publisher: Trans Tech Publications
E-ISSN: 1662-8985|2014|1081|48-52
ISSN: 1022-6680
Source: Advanced Materials Research, Vol.2014, Iss.1081, 2015-02, pp. : 48-52
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Abstract
This document demonstrates how to affect the brightness of liquid package recycled pulp by hydrogen peroxide bleaching and FAS beaching. The optimum H2O2 bleaching process conditions: 8% H2O2, 4% NaOH, bleaching temperature 80 °C, bleaching time 1.5h. The best FAS bleaching conditions was FAS dosage of 0.5%, NaOH dosage of 0.25%, bleaching temperature at 80 °C, time for 30min. And bleaching had no adverse effect on the performance of bleached pulp fiber.
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