Browse > Article
http://dx.doi.org/10.7584/ktappi.2012.44.4.008

Application of in-situ CaCO3 forming process on recycled fibers for optical property improvement  

Park, Dong-Hui (Chungnam National Univ., Dept. of Biobased Materials)
Lee, Min-Woo (Chungnam National Univ., Dept. of Biobased Materials)
Lee, Jong-Kyu (Chungnam National Univ., Dept. of Biobased Materials)
Ahn, Ji-Whan (KIGAM)
Seo, Yung-Bum (Chungnam National Univ., Dept. of Biobased Materials)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.44, no.4, 2012 , pp. 8-15 More about this Journal
Abstract
Optical property improvements for ONP (old newspaper) and OMG (old magazine) were attempted by application of in-situ $CaCO_3$ formation process on recycled fiber surfaces. Washing treatment of ONP and OMG resulted in 35~40% yield loss for around 6% brightness improvement. Washing plus bleaching process with $H_2O_2$ and FAS (formamidine sulfinic acid) improved brightness and ERIC values a little more with the same amount of yield loss as washing treatment. In-situ $CaCO_3$ formation method improved those optical properties much better than the washing plus bleaching method without loss of yield, and better than the case of adding high brightness PCC up to the same ash level. It can be said that the in-situ $CaCO_3$ formation method may be used as an effective alternative for upgrading optical properties of recycled fibers.
Keywords
ONP; OMG; Optical property; in-situ $CaCO_3$ formation; Brightness; Eric value;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Ince, P.J, Skog, K.E, and Heath, L.S., Recycling in the big picture-the really big picture, Resource Recycling 14(6):41(1995).
2 Korea paper manufacturers' association. http://www.paper.or.kr/n_indu/indu_02.asp.
3 Tappi test method T567 pm-97.
4 Won, J.M. - Deinking of white ledger with ultrasonic wave : Laboratory scale trial, Journal of Forest Science 23(2):73-78 (2007).
5 Kim, S.H, Ahn, B.J, Paik, K.H., Sequential Oxidative and Reductive Bleaching of MOW by the Addition of Thiourea, Journal of Korea TAPPI, Vol. 34, No.3, pp. 38-45(2002).
6 Kumar, P, Gautam, S. K, Kumar, V, Enhancement of optical properties of Bagasse pulp by in-situ filler precipitation, BioResources, 4(4), 1635-1646(2009).
7 Ryu, M.Y., Kim, H., Ahn, J.W. - Effect of Shape and Application Process of Precipitated Calcium Carbonate on Optical and Mechanical Properties of Recycled Paper, Geosystem Engineering, 11(4): 81-86 (2008).
8 Han, Y.R., Seo,Y.B. - Effect of particle shape and size of calcium carbonate on physical properties of paper, Korea TAPPI, Vol. 29(1), 7-15 (1997).   과학기술학회마을
9 Park, D.H., Improvement of recycled fiber properties for printing paper by in-situ precipitation calcium carbonate, Department of Forest Products, Graduate School, Chungnam National University, Daejeon, Korea, p11 (2011).