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

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
권호 표지

Effect of Deinking Agent Wettability on the Alkaline Deinking of Mixed Office Wastepaper

백상지 혼합고지의 알칼리 탈묵과 탈묵제 젖음성의 영향

  • 윤병태 (한국화학연구원 화학기술부) ;
  • 김영호 (한경대학교 화학공학과) ;
  • 김철웅 (한국화학연구원 응용화학부) ;
  • 서영범 (충남대학교 임산공학과) ;
  • 전양 (충남대학교 임산공학과)
  • Published : 2003.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

The effect of wettability of deinking agents which formed with various nonionic surfactants against the pulp fibers and ink particles were studied, And the effect of flotation processes on the deinking were also investigated. The wettabilities of the deinking agents against the water and ink particles were measured by Washburn tube and sessile drop techniques, respectively. As the water absorption increased (i.e., hydrophilicity increased), the ink removal increased, which indicates that the ink removal is strongly affected by the detachment process due to the swelling of the pulp. Also, when the contact angle of air/ink/deinking agent increased, the hydrophobicity of the ink particles increased, the efficiency of the ink removal and the brightness increased.

Keywords

References

  1. 5th PTS deinking symposium galland,g.
  2. 49th Appita Conference Proceedings Rao,R.;Kuys,K.
  3. TAPPI J. v.80 no.4 Dorris,g.M.;Sayegh,N.N.
  4. TAPPI J. v.80 no.4 Berg,S.R.;Johnson,D.A.;Thompson,E.V.
  5. Pulp and Paper Canada v.98 no.4 Vidotti,R.M.;Johnson,D.A.;Thompson,E.V.
  6. Surfactant and Colloid Science Schwartz,A.M.
  7. TAPPI J. no.7 A review of ink-removal techniques in current deinking technology Shrinath,A.;Szewczak,J.T.;Bowen,I.J.
  8. Pulp and Paper Canada v.94 no.7 Deinking of oil and water-borne printing inks : A new flotation de-inking model Putz,H.J.;Schaffrath,H.J.;Gottsching,L.
  9. Colloidal Systems and Interfaces v.87 Ross,S.;Morrison,I.D.
  10. Encyclopedia of Emulsion Technology v.1 no.23 Tadros,T.F.;Vincent,B.;P.Becher(ed.)
  11. Progress in Paper Recycling v.2 no.2 Possible deinking mechanism and potential analogies to laundering Borchardt,J.K.
  12. CPPA 1991 Recycling forum Mathur,I.
  13. Colloids surfaces v.88 no.1 Mechanistic insights into deinking Borchardt,J.k.
  14. Appita J. v.52 no.3 The influence of surfactant structure on ink detachment Rao,R.;Bourdelin,M.;Stenius,P.
  15. 1997 TAPPI Recycling Symposium Effect of temperature and pH on the fracture of toner due to paper swelling Wielm,L.V.;Panek,J.C.;Pfromm,P.H.