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

한국펄프종이공학회 (Korea Technical Association of the Pulp and Paper Industry)
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탈묵펄프 및 열기계펄프의 공정 조절을 통한 인쇄용지의 품질향상 연구

Studies on the Quality Improvement of Printing Paper by Process Controlling of DIP and TMP

  • 황성준 (국민대학교 삼림과학대학 임산생명공학과) ;
  • 임종근 (국민대학교 삼림과학대학 임산생명공학과) ;
  • 김형진 (국민대학교 삼림과학대학 임산생명공학과) ;
  • 정성현 (전주페이퍼)
  • Hwang, Sung-Jun (Department of Forest Products & Biotechnology, College of Forest Science, Kookmin University) ;
  • Lim, Jong-Keun (Department of Forest Products & Biotechnology, College of Forest Science, Kookmin University) ;
  • Kim, Hyoung-Jin (Department of Forest Products & Biotechnology, College of Forest Science, Kookmin University) ;
  • Chung, Sung-Hyun (KCCL)
  • 투고 : 2015.08.17
  • 심사 : 2015.09.02
  • 발행 : 2015.10.30
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초록

Recently, the use of wood resources has been limited due to global environmental change, like global warming and desertification. It is very critical in Korea's paper industries because lots of virgin pulp are dependant on direct import from abroad for printing grade of paper. In this work, the alternatively best available technique for reducing the import amounts of BKP (bleached Kraft pulp) was considered by mixing DIP (deinked pulp) and TMP (thermomechanical pulp) for the manufacture of high quality paper. Generally known, the sheet prepared from fibrous raw materials of DIP and TMP has lower strength and optical properties than that prepared from BKP. This study was aimed to improve the sheet quality by using DIP and TMP. 4 kinds of polyelectrolytes were approached to find out the best effects on physical strength and optical brightness improvements, and high retention behaviors with GCC (ground calcium carbonate). In conclusion, amphoteric PAM with 1,000,000 molecular weight (g/mol) and 0.5 charge density (meq/g) was best for the improvement of strength properties with the mixture of DIP and TMP. GCC retention rate was also the highest with cationic-PAM of above 2,000,000 molecular weight (g/mol) and about 2.0-3.0 charge density (meq/g) of strengthening agent.

키워드

참고문헌

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