Discoloration of mechanical and chemimechanical pulps: Influence of wood raw material, process and ageing method

Nordic Pulp and Paper Research Journal

Volumn 23, Issue 1, 2008, Pages 14-18

  Fjellström, Helena ^a,d   Höglund, Hans ^a,d   Paulsson, Magnus ^b   Rundlöf, Mats ^c  

^a MID SWEDEN UNIVERSITY   (Sweden)

^b Eka Chemicals AB   (Sweden)

^c AB Capisco   (Sweden)

^d MID SWEDEN UNIVERSITY   (Sweden)

Author keywords

Ageing; Colour measurements; Hardwood; High yield pulp; Light induced; Pulping processes; Softwood

Indexed keywords

COLOR; HARDWOODS; SOFTWOODS;

AGEING; COLOUR MEASUREMENT; HIGH YIELD PULP; LIGHT-INDUCED; PULPING PROCESS;

DISCOLORATION;

AGING; DISCOLORATION; HARDWOODS; ILLUMINATION; PULPING; PULPS; RAW MATERIALS; SOFTWOODS;

EID: 50949095750     PISSN: 02832631     EISSN: None     Source Type: Journal    
DOI: 10.3183/npprj-2008-23-01-p014-018     Document Type: Article

References (32)

1. 4 Raman/IR band to p-quinones and its implications to the mechanism of color reversion in mechanical pulps, J. Wood Chem. Technol. 18(4), 381-402.
2. Agnemo, R., Francis, R.C., Alexander, T.C. and Bence, C.W. (1991): Studies on the mechanism of the photoyellowing of bleached mechanical and chemimechanical pulps. Ill. The role of hydroxyl radicals, Holzforschung, 45(Suppl.), 101-108.
3. Andrady, Al., Song, Y. and Parthasarathy, V.R. (1991): Photoyellowing of mechanical pulp. Part 1: Examining the wavelength sensitivity of light-induced yellowing using monochromatic radiation, Tappi J. 74(8), 162-168.
4. Davidson, R.S. (1996): The photodegradation of some naturally occurring polymers, J. Photochem. Photobiol. B 33(1), 3-25.
5. Ek, M. (1992): Some aspects on the mechanisms of photoyellowing of high-yield pulps, Ph.D. thesis, the Royal Institute of Technology, Stockholm, Sweden.
6. Fjellström, H., Höglund, H. and Paulsson, M. (2007): Light-induced yellowing of mechanical and chemimechanical pulp sheets: influence of wood raw material, process and ageing method, Nord. Pulp Paper Res. J. 22(1), 117-123 and Nord. Pulp Paper Res. J. 22(2), 275 (Erratum).
7. Forsskåhl, I. (2000): Brightness reversion, In: Stenius, P. (ed.), Forest Products Chemistry, Fapet Oy, Helsinki, Finland, pp. 278-332.
8. Forsskåhl, I., Tylli, H., Olkkonen, C. and Janson, J. (1991): Photochemistry of quinones and hydroquinones on solid matrices, 6th Int. Symp. Wood Pulp. Chem., Melbourne, Australia, April 29-May 3, APPITA, Calton, Australia, Vol. 2, pp. 255-262.
9. Francis, R.C., Dence, C.W., Alexander, T.C., Agnemo, R. and Omori, S. (1991): Photostabilization of thermomechanical pulps by alkylation and borohydride reduction, Tappi J. 74(12), 127-133.
10. Gellerstedt, G. and Pettersson, E.-L. (1977): Light-induced oxidation of lignin, Part 2. The oxidative degradation of aromatic rings, Svensk Papperstidning, 80(1), 15-21.
11. Gellerstedt, G. and Zhang, L. (1993): In: Heitner, C. and Scaiano, J.C. (eds.) Photochemistry of Lignocellulosic Materials, ACS Symposium Series 531. Washington, DC, USA, Chapter 10, pp. 129-146.
12. Gratzl, J.S. (1985): Lichtinduzierte Vergilbung von Zellstoffen -Ursachen and Verhütung, Papier 39(10A), V14-23.
13. Heitner, C. (1993): Light-induced yellowing of wood-containing papers: An evolution of the mechanism, In: Heitner, C. and Scanian, J.C. (eds.). Photochemistry of Lignocellulosic Materials, ACS Symposium Series 531, Washington, DC, USA, pp. 2-25.
14. Heitner, C. and Min, T. (1987): The effect of sulphite treatment on the brightness and bleachability of chemithermomechanical pulp, Cellul. Chem. Technol. 21(3), 289-296.
15. Hirashima, H. and Sumimoto, M. (1994): A basic chromophore and leucochromophore in mechanical pulps: possible repetition of photochemical reduction-oxidation-reduction, Tappi J. 77(1), 146-154.
16. Johnson, R.W. (1989): Brightness stability of mechanical pulps: Relating laboratory data to performance, Tappi J. 72(12), 181-187.
17. Johnson, R.W. (1991): CTMP in fine papers: On-machine surface treatments for improved brightness stability, Tappi J. 74(5), 209-217.
18. Lanzalunge, O. and Bletti, M. (2000): Photo- and radiation chemical induced degradation of lignin model compounds, J. Photochem. Photobiol. B 56(2-3), 85-108.
19. Leary, G.J. (1968): The yellowing of wood by light: Part 2. Tappi, 51(6), 257-260.
20. Leary, G.J. (1994): Recent progress in understanding and inhibiting the light-induced yellowing of mechanical pulps, J. Pulp Paper Sci. 20(6), J154-J160.
21. Lebo, S.E., Lonsky, W.F.W., McDonough, T.J., Medvecs, P.J. and Dimmel, D.R. (1990): The Occurrence and Light-Induced Formation of ortho-Quinonoid Lignin Structures in White Spruce Refiner Mechanical Pulp, J. Pulp Paper Sci. 16(5). J139-J143.
22. Lewis, H.F., Reineck, E.A. and Fronmuller, D. (1945): The "fading" of ground-wood by light. I. A study on the relation between the variables in sheet formation and fading, Paper Trade J. 121(8), 44-48.
23. Lin, S.Y. and Kringstad, K.P. (1971): Some reactions in the photoinduced discoloration of lignin, Norsk Skogsind. 25(9), 252-256.
24. Luo, C., Putz, H.-J. and Göttsching, L. (1988): Untersuchungen zur licht- and hitzeinduzierten Vergilbung von gebleichten ligninhaltigen Primäand Sekundärfaserstoffen, Papier, 42(10A), V55-V67.
25. Luo, C., Putz, H.-J. and Göttsching, L. (1989): Zusammenhäzwischen optischen Kenngrözur Beurteilung der Vergilbung von Holzstoffen, Papier, 43(10), 537-548.
26. McGarry, P.F., Schmidt, J. and Heitner, C. (2004): Accelerated light exposure of wood containing pulps. Part I: Effects of wavelength and intensity, Tappi J. 3(10), 18-24.
27. Paulsson, M., Simonson, R. and Westermark, U. (1996): Chemical modification of lignin-rich paper. Part 5: Long-term irradiation of unbleached and hydrogen-peroxide-bleached acetylated spruce TMP, Nord. Pulp Paper Res. J. 11(4), 227-233.
28. Paulsson, M. and Ragauskas, A.J. (1998a): Chemical modification of lignin-rich paper. Part 8: Effect of light source on the accelerated light-induced yellowing of untreated and acetylated high-yield pulps, Nord. Pulp Paper Res. J. 13(2), 132-142.
29. Paulsson, M. and Ragauskas, A.J. (1998b): Chemical modification of lignin-rich paper. Part 10: The light-induced yellowing of untreated and acetylated high-yield pulps studied by solid-state UVNIS diffuse reflectance spectroscopy, Nord. Pulp Paper Res. J. 13(2), 198-205.
30. Paulsson, M. and Parkås, J. (2000): Chemical modification of chemimechanical pulps. Part 1: Mechanical, optical, and aging properties of propionylated spruce CTMP, J. Wood Chem. Technol. 20(2), 205-224.
31. Paulsson, M. and Parkås, J. (2001): Long-term natural aging of untreated and chemically modified high-yield pulps, 11th Int. Symp. Wood Pulp. Chem., Nice, France, June 11-14, ATIP, Paris, France, pp. 227-230.
32. Ramos, J., Paulino, L., Turrado, J., Davalos, F., Riviera, J. and Young, R. (2003): Surface treatment of chemimechanical pulp (CTMP) to prevent brightness reversion, Cellul. Chem. Technol. 37(1-2), 95-115.