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Abstract: The effective detachment of ink from the fibre surface and the prevention of its redeposition onto the surface before its removal in the flotation cell is important in deinking old newsprint (ONP). Magnesium Oxide (MgO) has been found to be a suitable replacement for sodium hydroxide (NaOH) in flotation deinking in the laboratory but not as effective in mill trials. The reason for the poorer performance is discussed in this paper.

To cite this article: Stack, Karen; Tria, Juliette and Richardson, Des. Ink Detachment and Redeposition in Alkali Flotation Deinking Systems [online]. Appita Journal: Journal of the Technical Association of the Australian and New Zealand Pulp and Paper Industry, Vol. 58, No. 4, July 2005: 297-302. Availability: <http://search.informit.com.au/documentSummary;dn=583080976796018;res=IELENG> ISSN: 1038-6807. [cited 28 Jul 16].

Personal Author: Stack, Karen; Tria, Juliette; Richardson, Des; Source: Appita Journal: Journal of the Technical Association of the Australian and New Zealand Pulp and Paper Industry, Vol. 58, No. 4, July 2005: 297-302 Document Type: Journal Article ISSN: 1038-6807 Subject: Mechanical pulping process; Printing ink; Papermaking--Chemistry; Peer Reviewed: Yes Affiliation: (1) Research Fellow and Corresponding Author, Pulp and Paper Research Group, School of Chemistry, University of Tasmania, Private Bag 75, Hobart TAS 7001
(2) Senior Specialist Process Chemistry, Research and Development Australasia, Norske Skog Paper Mills (Australia) Ltd, Boyer TAS 7140

Database: Engineering Collection