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http://dx.doi.org/10.7584/ktappi.2016.48.3.005

Study on the Migration of Fluorescent Whitening Agents Used for Papermaking Process  

Lee, Ji Young (Dept. of Environmental Materials Science/IALS, Gyeongsang National University)
Kim, Chul Hwan (Dept. of Environmental Materials Science/IALS, Gyeongsang National University)
Sung, Yong Joo (Dept. of Biobased Materials, College of Agriculture and Life Science, Chungnam Natl. Univ.)
Kim, Eun Hea (Dept. of Forest Products, Gyeongsang National University)
Kim, Jae Hyung (Dept. of Environmental Materials Science, Gyeongsang National University)
Park, Tae Ung (Dept. of Environmental Materials Science, Gyeongsang National University)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.48, no.3, 2016 , pp. 5-13 More about this Journal
Abstract
This study investigated the effects of different factors on the migration of a fluorescent whitening agent (FWA) from paper treated with FWAs to non-fluorescent papers. FWA migration experiments were carried out in vertical and friction contacts between the papers dyed with FWAs and non-fluorescent papers. During the experiments, we identified the effects of the addition and types of FWAs, contact time, temperature, and relative humidity (RH) on FWA migration. The fluorescence indices of the non-fluorescent papers were measured before and after the migration experiments, and the Student's t test, a statistical tool, was utilized to compare results from different migration experiments. In vertical contact experiments, FWA migration to non-fluorescent paper was observed at $30^{\circ}C$ and 70% RH; this was attributed to the high moisture content of the paper. FWA migration did not occur significantly at $23^{\circ}C$ and 50% RH. In the friction contact experiments, FWA migrations were identified at both temperature conditions and RH percentages. The addition and types of FWAs did not increase the fluorescence index of non-fluorescent papers. Therefore, it was concluded that the moisture content of paper and the friction contact affected FWA migration from the papers containing internal and surface FWAs.
Keywords
Fluorescent whitening agent; migration; fluorescence index; vertical contact; friction contact;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Holmberg, M., Dyes and fluorescent whitening agents in Papermaking Chemistry, Papermaking Science and Technology, Vol. 4, Ch. 14, TAPPI Press, Atlanta, pp. 304-320(1997).
2 Lee, H. L., Lee, B. J., Shin, D. S., Lim, K. P., Seo, Y. B., and Won, J. M., Dyes and fluorescent whitening agents, Paper Science, Ch. 14, Kwangil, Suwon, pp. 335-348(1996).
3 Roy, B. P., How do you remove/destroy/extinguishfluorescent materials indeinked pulp?, Prog. Pap. Recycling 4(1): 74-80(1994).
4 Weaver, H., Surface brightening of paper, Surface application of paper chemicals, Ch. 8, Blackie academic & Professional Press, pp. 156-174(1997).
5 Korea Meteorological Administration, http://www.kma.go.kr, 30 March(2016).
6 Lee, J. Y., Kim, C. H., Lee, H. J., and Gwak, H. J., Fundamental Study on the Quantitative Analysis of Fluorescent Whitening Agent used for Papermaking, Journal of Korea TAPPI 43(2): 9-15(2011).
7 Harris, C. D., Statistics, Exploring Chemical Analysis, Ch. 4, W. H., Freeman and Company, New York, pp. 54-71(1996).