Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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EoP Bleaching of Mixed Office Wastepaper

MOW의 산소-알칼리 첨가 과산화수소 표백

  • Kim, Seung-Ho (Division of Environmental Science and Ecological Engineering, Korea University) ;
  • Lee, Hyung (Division of Environmental Science and Ecological Engineering, Korea University) ;
  • Baek, Ki-Hyun (Division of Environmental Science and Ecological Engineering, Korea University)
  • 김승호 (고려대학교 생명환경과학대학 생태공학부) ;
  • 이형 (고려대학교 생명환경과학대학 생태공학부) ;
  • 백기현 (고려대학교 생명환경과학대학 생태공학부)
  • Published : 2002.10.01
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Abstract

To produce the raw material used for printing and writing paper or high quality tissue, MOWs that were consisted of white ledger, colored ledger and old newspaper were bleached with EoP and EoPY(FAS) method, the EoP bleaching process gave the improvement in brightness and a high color removal efficiency. Especially, MOW B(initial brightness: 59.1％ ISO) that contained much old newspaper showed the higher bleaching efficiency than those of MOW A(initial brightness: 68.3%). After EoPY(FAS) bleaching, MOW's brightness was increased from 68.3% ISO to 84.3∼84.0% ISO, and from 59.1% ISO to 78.7∼79.2% ISO, respectively. Also the tensile and burst index of bleached pulps decreased by 10∼30%. The tear index slightly decreased or halted at the same range as unbleached pulps.

Keywords

References

  1. Dissertation Untersuchungen zur Bleiche unterschiedlicher Altpapierstoffe fur die Herstellung hochwertiger Druck-und Presspapier Gehr, V.
  2. 1995 Recycling Symposium TCF bleaching of mixed office waste compositions Sharpe, P. E.
  3. J. Pulp & Paper Sci. v.20 no.7 Bleaching of secondary fibre pulps Van Lierop, B.;Liebergott, N.
  4. TAPPI Proc. 1994 Research Forum on Recycling Chlorine-free bleaching chemicals for secondary fibres Kappel, J.;Matzke, W.
  5. Cellul. Chem. Technol. v.30 no.5 Deinking Condition for yellow directory using formamidine sulfinic acid as a repulping chemical Marchildon, L.;Daneault, C.;Leduc, C.;Sain, M. M.
  6. J. Korea Ind Eng. Chem. v.12 no.7 Chlorine-free bleaching of mixed office wastepaper Ahn, B. J.;Paik, K. H.
  7. High brightness bleaching of mixed office waste v.98 no.1 Grafeldt, T.;Grundstrom, P.;Lary, E.
  8. Pulp & Paper Canada v.99 no.10 Top quality deinked pulp from mixed office waste by high temperature peroxide bleaching Lunabba, P.;Granfeldt, T.;Grundstrom, P.;Lary, E.
  9. Pulp & Paper Canada v.92 no.9 Bleaching of groundwood pulp at temperatures up to 95℃ Kappel, J.;Sbaschnigg, J.
  10. Tappi Pulping Conf.(Toronto), Proc. Upgrading of waste paper with hydrogen peroxide Helmling, O.;SuSS, H. U.;EUL, W.
  11. Pulp & Paper Canada v.99 no.8 Use of high temperature resistant chelants in peroxide bleaching of kraft pulps Jaschinski, T.;Odermatt, J.;Patt, R.;Bachus, H.;Kordsachia, O.
  12. Tappi J. v.81 no.6 Bleaching of western red cedar and Douglas-fir mechanical pulps Kyriacou, P.;Jong, E. D.;Johansson, C. I.;Chandra, R. P.;Saddler, J. N.
  13. 1996 TAPPI Recycling Symposium Peroxide-reductive bleaching of mixed office waste of high brightness Szczucki, C. L.;Kilgannon, R. R.
  14. Journal of Pulp and Paper Sci. v.18 no.4 The effects of recycling on pulp properties Howard, R. C.;Bichard, W.
  15. Pulp & Paper Canada v.99 no.4 The naked truth on hot perxide bleaching Suss, H. U.;Nimmerfroh, N. F.;Kronis, J. D.
  16. 1995 TAPPI Recycling Symposium Bleaching deinked pulp with ozone-based, reductive-oxidative sequences Kogan, J.;Perkins, A.;Muguet, M.