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Priority to FI973012ApriorityCriticalpatent/FI104573B/en
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Publication of FI973012ApublicationCriticalpatent/FI973012A/en
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Publication of FI104573BpublicationCriticalpatent/FI104573B/en
The invention relates to a process for dithionite bleaching, in which, after a reduced bleaching which has been performed using dithionite, the bleached fibre pulp is conveyed to a paper making machine for the purpose of making paper. An oxygen-emitting compound is supplied to the pulp, which compound brings about oxidation of the breakdown products of the oxygen without increasing the brightness of the pulp, and a base is also supplied to the pulp for the purpose of compensating for the lowering of the pH which has been caused by the oxidation. <IMAGE>
FI973012A1997-07-161997-07-16Process for dithionite bleaching
FI104573B
(en)