Neutral Sizing of Linerboard Using Fast Cure Type AKD

급속경화형 AKD를 이용한 라이너지의 중성 사이징

  • Lee Hak-Lae (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University) ;
  • Seo Man-Seok (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University) ;
  • Shin Jong-Ho (Taekwang Chemical Co.) ;
  • Youn Hye-Jung (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University)
  • 이학래 (서울대학교 농업생명과학대학 산림과학부) ;
  • 서만석 (서울대학교 농업생명과학대학 산림과학부) ;
  • 신종호 (태광화학공업주식회사) ;
  • 윤혜정 (서울대학교 농업생명과학대학 산림과학부)
  • Published : 2006.03.01

Abstract

To overcome troubles in strength and process of linerboard caused by raw materials, a neutral sizing which is usual in fine paper making can be considered. A new sizing agent is necessary to show good performance in a system with high conductivity and COD. In this study, fast cure type AKD was examined as a new sizing agent and compared with conventional AKD. The effects of fixing agent addition and drying condition were also investigated. Fast cure type AKD which has a higher cationicity showed better sizing degree than conventional AKD in spite of low addition level and no curing treatment. And when fixing agent of sufficient amount was added, sizing degree was improved for both AKDs. High cationicity is a crucial factor for neutral sizing of linerboard for obtaining fast and stable sizing degree. Drying with temperature over $100^{\circ}$ was desirable for developing sizing degree.

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