Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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Interaction between Polyelectrolytes Layer-by-Layer Assembled Fibers and Fluorescent Whitening Agent

고분자전해질 LbL multilayering 처리된 섬유와 형광증백제와의 반응성

  • Sim, Kyu-Jeong (Dept. of Forest Sciences, Seoul National University) ;
  • Lee, Sung-Rin (Dept. of Forest Sciences, Seoul National University) ;
  • Chin, Seong-Min (Dept. of Forest Sciences, Seoul National University) ;
  • Ryu, Jae-Ho (Dept. of Forest Sciences, Seoul National University) ;
  • Youn, Hye-Jung (Dept. of Forest Sciences, Seoul National University)
  • 심규정 (서울대학교 농업생명과학대학 산림과학부) ;
  • 이성린 (서울대학교 농업생명과학대학 산림과학부) ;
  • 진성민 (서울대학교 농업생명과학대학 산림과학부) ;
  • 류재호 (서울대학교 농업생명과학대학 산림과학부) ;
  • 윤혜정 (서울대학교 농업생명과학대학 산림과학부)
  • Received : 2010.12.06
  • Accepted : 2010.12.19
  • Published : 2010.12.30
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Abstract

To utilize modified pulp fibers in papermaking system, it is necessary to evaluate the interaction between modified fibers and papermaking additives. Fluorescent whitening agent (FWA) is an important additive which has been widely used for production of writing and printing paper. We modified pulp fiber surface by Layer-by-Layer multilayering of polyelectrolytes, and investigated the interaction between these fibers and FWA used in internal addition or surface treatment. Pulp fiber with cationic surface charge showed a good affinity to internal FWA. For FWA in surface sizing agent, whiteness and brightness of paper was dependent on pickup weight and polyelectrolyte type. Pulp fibers with C-starch/PSS multilayer showed better optical properties than poly-DADMAC/PSS treatment. It indicated that polyelectrolyte type in Layer-by-Layer multilayering as well as a good affinity to FWA is important to get better whiteness and brightness.

Keywords

References

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