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

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

플렉소 잉크가 포함된 신문고지의 중성 탈묵 - 알코올계 계면활성제의 효과 평가 -

Neutral Deinking of Old Newspapers Contaminated with Flexo Ink - Evaluation of the deinking efficiency of alcohol type neutral deinking agents -

  • 류훈 (서울대학교 농업생명과학대학 산림과학부 환경재료과학) ;
  • 이학래 (서울대학교 농업생명과학대학 산림과학부 환경재료과학)
  • Ryu, Hoon (Program in Environmental Materials Sciences, College of Agriculture and Life Sciences, Seoul National University) ;
  • Lee, Hak-Lae (Program in Environmental Materials Sciences, College of Agriculture and Life Sciences, Seoul National University)
  • 발행 : 2006.12.30
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초록

Presence of old newspapers printed with waterbased flexographic inks leads to a significant loss of brightness of the deinked pulp by flotation process. It has been shown that neutral or acidic flotation deinking has many advantages in recycling of flexo printed newsprints. A comparative experimental study was performed to evaluate the deinking efficiency of three alcohol type deinking agents in flotation deinking of flexo printed newspapers. Zeta potential of neutral deinked pulp was less negative than alkaline deinked pulp. Also neutral deinking was advantages in reducing turbidity, COD, and cationic de-mands of deinking process water.

키워드

참고문헌

  1. Chabot, B., Daneault, C., Lapointe, M. and Machildon, L., Newsprint water‐based inks and flotation deinking, Progress Paper Recycling, August/ 1993 : 21 - 29
  2. Jarrehult, B., Horacek, R.G. and Lindquist, M. L.,Deinking of wastepaper containing flexographic inks, 1989 Pulping Conference Proceedings, TAPPI PRESS, Atlanta, USA, pp. 391 - 405
  3. Skaar, T.F., Deinking flexo printed ONP in the flotation stage, 1994 Pulping Conference Proceedings, TAPPI PRESS, Atlanta, USA, pp. 885 - 904
  4. Turvey, R.W., Chemical use in recycling, In, Thecnology of Paper Recycling, ed. by R.W.J. McKinney, Blackie Academic & Professional, Glasgow, UK, pp. 130 - 144 (1995)
  5. Galland, G., Vernac, Y. and Carre, B., The advantages of combining neutral and alkaline deinking, Part I : Comparison of deinking of offset and flexoprinted paper, Pulp Paper Canada 98(6) : T182 - 185 (1997)
  6. Galland, G., Vernac, Y. and Carre, B., The advantages of combining neutral and alkaline deinking, Part II : Comparison of various processes for deinking mixtures containing waterbased printed paper in the CTP pilot plant, Pulp Paper Canada 98(7) : T254 - 257 (1997)
  7. Chabot, B., Daneault, C., Sain, M.M. and Dorris, G.M., The adverse role of fibres during the flotation of flexographic inks, Pulp Paper Canada 98(12) : T451 - 456 (1997)
  8. Lee, H.L., and H. Ryu, Neutral deinking of old newsprints contaminated with flexo ink – Evaluation of the deinking efficiency of two neutral deinking agents, J. Korea TAPPI 33(1):9 - 16 (2001)
  9. Jordan, B.D. and Popson, S.J., Measuring the conentration of residual ink in recycled newsprint, JPPS 20(6) : J161 - 167 (1994)
  10. Upton, B.H., Krishnagopalan, G.A. and Abubakr, S., Deinking flexographic newsprint : using ultrafiltration to close the water loop, Tappi J. 80(2): 155 - 164 (1997)
  11. Upton, B.H., Krishnagopalan, G.A. and Abubakr, S., Ultrafiltrative deinking of flexographic ONP: The role of surfactants, 1997 Recycling Symposium Proceedings, TAPPI PRESS, Atlanta, USA, pp. 175 - 191