Colour stripping

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Colour Stripping The colour of deinked pulp results from either pigmented inks or dyes. Pigmented inks are added mainly during printing whereas dyes can be added at different stages. Dyes can be added during paper manufacturing to adjust the shade (low addition) or to produce a coloured paper (tinted paper), requiring larger addition of dyes.

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Authors & references

Authors:

Roland Pelzer, James G. Tausche, Dr Jianhu Ma; Manuel Fuzy, Joerg Polste

Based on: Papermaking Science and Technology, book 7, Recycled fibre and deinking, Höke U. and Schabel S. (Book editor). Chapter 7 Additives. Jyväskylä, 2000, Fapet Oy. More references can also be found in this chapter.

References:

Marlin, N., Thesis (2002): presented the 11 December 2002, at Ecole Francaise de Papeterie de Grenoble, for the grade of INPG phD, “Comportement de mélanges de pâtes papetières chimiques et mécaniques lors de traitements par le peroxyde d’hydrogène en présence d’oxygène- Application au blanchiment de fibres recyclées.
Sharpe, PE., Lowe, RW. (1993), The bleaching of coloured recycled fibers, Pulping Conference, 1993, TAPPI Proceedings p1205–1217.
Fluet, A., Sodium hydrosulfite brightening and colour stripping of mixed office waste furnishes, Proceedings of the TAPPI Pulping Conference, pp. 717–724, 1995.
Rangammanar, G., Colour stripping of mixed office waste papers, Proceedings of the TAPPI Pulping conference, pp. 879–885, 1995.
Magnin, L., Angelier, M.C., Galland, G. (2000), Comparison of various oxidising and reducing agents to bleach wood-free recycled fibres, 9th PTS CTP Deinking Symposium, Munich, Germany, 9–11 May 2000.
Quinnett, P.E. and Ward, L.R., Chlorine dioxide for decolourizing deinked mixed office waste, TAPPI 1995 Recycling Symposium Proceedings, TAPPI PRESS, Atlanta, p. 149.
Karp, B.E. and Trozenski, R.M. (1996), Non-chlorine bleaching alternatives: a comparison between ozone and sodium hypochlorite bleaching of dyed paper, International Pulp Bleaching Conference, 1996, Tappi Proceedings p. 425–431.
Muguet, M. and Sundar, M.,“Ozone bleaching of secondary fibers, 1996 International Non-chlorine Bleaching Conference Proceedings, TAPPI PRESS, Atlanta, paper no. 8–1.
Kogan, J., Perkins, A. and Muguet, M., (1995), Bleaching deinked pulp with ozone-based reductive-oxidative sequences, TAPPI Recycling Symposium, Proceedings :139–148, New Orleans, (21–23 February 1995).
Fluet, A. and Shepperd, P. (1997), Colour-stripping of mixed office papers with hydrosulfite based bleaching products, Progress in Paper Recycling, February 1997.
Darlington, B., Jezerc, J., Magnotta, V., Naddeo, R., Waller, F. and White-Gaebe, K., (1992), Secondary Fiber Colour Stripping: Evaluation of Alternatives, Tappi Pulping Conference, Boston, Proceedings: 67–74 (Nov. 1992).
Galland, G., Magnin, L., Carre, B. and Larnicol, P. (2002), Best use of bleaching chemicals in deinking lines, ATIP, vol 56, n°1, Février-Mars 2002, presented to the China Paper Conference, TAPPI China, Beijing, September 24–25, 2001
Carré, B., Magnin, L., Galland, G. and Vernac, Y. (1998), Deinking difficulties related to ink formulation, printing process and type of paper, Cost Action E1 “Paper Recyclability” – Las Palmas de Gran Canaria (Spain), November 24–26, 1998, pp. 255–289, 1999 Tappi Recycling Symposium, March 1–4, 1999, Atlanta, Vol 2 (session 1–6), pp. 583–616.
Muller-Mederer, C. et al. (2002), Possibilities to reduce red discolouration of deinked pulp, 7th Recycling technology conference, Brussels, Belgium, 14–15 Feb 2002.

This page has been updated 16.11.2021

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