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Relationship between Equilibrium Moisture Contents and Dimensional Stability of Handsheet Depending on Fibers Hornification  

Park, Chang-Soon (Ahlstrom Korea)
Lee, Jin-Ho (Chungbuk National University, College of Agriculture, Life & Environment Science, Department of Forest Products & Engineering)
Kil, Jung-Ha (KOMSCO, Technical Research Institute)
Park, Jong-Moon (Chungbuk National University, College of Agriculture, Life & Environment Science, Department of Forest Products & Engineering)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.43, no.3, 2011 , pp. 11-20 More about this Journal
Abstract
The conditions to which pulp fibers are exposed during paper production, converting, storage, use, and recycling can induce various changes in fiber morphology, surface characteristics, and suitability for paper production by recycled fibers. Most of those changes can be described by hornification. Paper has highly hygroscopic properties which affect dimensional change by relative humidity variation of surrounding condition. The purpose of this study was to investigate the dimensional stability, moisture contents and dip elongation of handsheets at different relative humidity conditions of recycled kraft pulp and BCTMP. By using recycled fibers, dimensional stability was increased because hygroscopic properties of fibers decreased with repeated recycling treatment. Dip elongation of recycled pulp was higher than that of virgin pulp because of its weak fiber-to-fiber bonding. By recycling pulp, the relative bonded area was decreased because fiber could not swell more than virgin pulp. Dimensional stability largely depended on the equilibrium moisture contents of paper, the fiber-to-fiber bonding strength, and the relative bonded area.
Keywords
dimensional stability; hornification; dip elongation; recycling; WRV;
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Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 0
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1 Jayme, G., Mikro-Quellundsmessungen and Zellstoffen, Wochenbl Papierfabr 6:187-194 (1944).
2 Bawden, A.D. and Kibblewhite, R.P., Effects of multiple drying treatments on kraft fibre wall, Third research forum on recycling, CPPA, Vancouver, pp. 171-177 (1995).
3 Stone, J.E. and Scallan, A.M., Influence of drying on the pore structures of the cell wall:Bolam F.(ed), Consolidation of the paper web, BPBMA, London, pp. 145-174 (1966).
4 Klungness, J.H. and Caufield, D.F., Mechanisms affecting fiber bonding during drying and aging of pulps, Tappi J. 65:94-97 (1982).
5 이진호, 민경은, 박종문, ESP(Electron Speckle Photography) system을 이용한 종이의 치수 안정성 평가, 한국펄프.종이공학회 2006년 추계학술논문발표집 pp. 273-282 (2006).
6 원종명, 내부소섬유화가 종이물성에 미치는 영향, Journal of Korea TAPPI 35(1):1-6 (2003).
7 Stone, J.E. and Scallan, A.M., Effect of component removal upon the porous structure of the cell walls of wood II, Swelling in water and the fiber saturation point, Tappi J. 50(10):496-501 (1967).
8 Lindstrom, T., and Carlsson G., The effect of chemical environment on fiber swelling, In: Pap.-Eucepa symp., pp 32-52 (1978).
9 Grignon, J. and Scallan A.M., Effect of pH and neutral salts upon the swelling of cellulose gels, J. Appl. Polym. Sci. 25:2829-2843 (1980).   DOI   ScienceOn
10 Laine, J., Lindstrom, T., Bremberg, C. and Glad-Nordmark, G., Studies on topochemical modification of cellulosic fibers, part 5, Comparison of the effects of surface and bulk chemical modification and beating of pulp on paper properties, Nordic Pulp Paper Res. J. 18:325-332 (2003).   DOI
11 Nordman, L., Laboratory investigations into the dimensional stability of paper, Tappi J. (41):23-30 (1958).
12 Salmen, L. and Boman R., Fellers C., Htun, M., The implications of fiber and sheet structure for the hygroexpansivity of paper, Nordic Pulp Paper Res. J. 2:127-131 (1987).   DOI
13 Uesaka, T. and Qi, D., Hygroexpansivity of paper-effects of fiber-to-fiber bonding, J. Pulp Paper Sci. 20:175-179 (1994).
14 Howard, R, C., The effect of recycling on paper quality, J. Pulp Pap. Sci. 16:J143-149 (1990).
15 Minor, J. L., Hornification-its origin and meaning, Progr. Pap. Recycling 3:93-95 (1994).