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Fundamental Study on Developing Lignocellulosic Fillers for Papermaking(I)  

Shin, Tae-Gi (Dept. of Forest Sciences/IALS, Gyeongsang National Univ.)
Kim, Chul-Hwan (Dept. of Forest Sciences/IALS, Gyeongsang National Univ.)
Chung, Ho-Kyung (Dept. of Forest Sciences/IALS, Gyeongsang National Univ.)
Seo, Jung-Min (Dept. of Forest Sciences/IALS, Gyeongsang National Univ.)
Lee, Young-Rok (Dept. of Forest Sciences/IALS, Gyeongsang National Univ.)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.40, no.2, 2008 , pp. 8-15 More about this Journal
Abstract
Wastewoods (logging residues) generated in Korea were used to make lignocellulosic fillers for papermaking. Lignocellulosic fillers could play great roles to increase retention efficiency and thus decrease turbidity of white water in papermaking process. In addition, lignocellulosic fillers could be used to improve physical properties of paper through their high affinity to cellulosic fibers, leading to the less use of chemical additives like retention aids. Wastewoods including Pinus densiflora and Quercus variabilis were chemically and mechanically treated for making fine particles passing through 100 mesh wire. The newly generated fillers showed larger particle size distribution than ground calcium carbonates but similar distribution to talc. In particular, pretreatment by hot water was more effective to generate smaller particle size than by alkali treatment. Lignocellulosic particles mixed with ground calcium carbonates under intense hybridizing condition greatly contributed to surface coverage of organic fillers in addition to filling to lumen and pits.
Keywords
lignocellulosic filler; wastewood; retention; cooking; organic fillers;
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