Publisher : Korea Technical Association of the Pulp and Paper Industry
DOI : 10.7584/ktappi.2015.47.6.066
Title & Authors
Effects of Optical Brightening Agent on the Chemical Degradation Characteristics of Paper Cellulose Lee, Jae-Hun; Choi, Kyoung-Hwa; Cho, Byoung-Uk;
This study was conducted to investigate the effects of optical brightening agents (OBA) on the chemical degradation characteristics of paper cellulose during humid heating aging. Three different types of OBAs were applied to a filter paper by dipping it in OBA solutions whose concentrations were controlled to 1% and 2%. The filter papers with an OBA were artificially aged at and 65% RH, and the changes in pH of paper and viscosity of cellulose were evaluated. Their functional groups were also analyzed by ATR-FTIR (at-tenuated total reflectance fourier transform infrared spectroscopy). It was found that OBAs influenced the chemical degradation of paper cellulose during humid heating aging. Higher concentration of OBA solutions accelerated the degradation of paper cellulose. Especially, after aging for 12 days, the paper cellulose treated with the tetra-type OBA were the most significantly aged among the three types of OBAs. It was assumed that pH of OBA solutions affected the aging characteristics.
Lee, H. L., Lee, B. J., Shin, D. S., Lim, K. P., Seo, Y. B., Won, J. M., and Sohn, C. M., Paper Science, Kwang-Il Publisher, Seoul, Republic of Korea, pp. 344-348 (1996).
Shadkami, F., Helleur, R., and Sithole, B. B., The analysis of optical brightening agents in paper samples using liquid chromatography with high-resolution mass spectrometry, Journal of Wood Chemistry and Technology 31:42-57 (2011).
Forshl, I, Brightness Reversion in Papermaking Science and Technology, 1st Ed., TAPPI Press, Atlanta, p. 278 (1997).
Kim, C. H., Lee, J. Y., Kim, B. H., Choi, J. S., Lim, G. B., and Kim, D. M., Study on the thermal fastness of fluorescent whitening agents, Journal of Korea TAPPI 44(1):10-15 (2012).
Choi, E. Y., Lee, Y. K., and Cho, B.-U., Effects of artificial thermal aging on variations in color of commercial papers, Journal of Korea TAPPI 46(4):54-61 (2014).
Choi, K. H., Lee, J, H., and Cho, B,-U., Effects of optical brightening agents on aging characteristics of paper, Journal of Korea TAPPI 46(6):87-93 (2014).
Lojewska, J., Miskowiec, P., Lojewski, T., and Proniewicz, L. M., Cellulose oxidative and hydrolytic degradation: In situ FTIR approach, Polymer Degradation and Stability 88:512-520 (2005).