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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Evaluation of Recyclability at Varied Blending Ratios of Gable Top and Aseptic Brick Carton

상온보존팩과 냉장보존팩의 배합비율에 따른 재활용 특성 평가

  • Seo, Jin Ho (Changgang Institute of Paper Science & Technology, Kangwon National University) ;
  • Lee, Tai Ju (Changgang Institute of Paper Science & Technology, Kangwon National University) ;
  • Lee, Dong Jin (Changgang Institute of Paper Science & Technology, Kangwon National University) ;
  • Lee, Myoung Ku (Dept. of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University) ;
  • Ryu, Jeong Yong (Dept. of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University)
  • 서진호 (강원대학교 창강제지기술연구소) ;
  • 이태주 (강원대학교 창강제지기술연구소) ;
  • 이동진 (강원대학교 창강제지기술연구소) ;
  • 이명구 (강원대학교 산림환경과학대학 제지공학과) ;
  • 류정용 (강원대학교 산림환경과학대학 제지공학과)
  • Received : 2015.11.12
  • Accepted : 2015.12.12
  • Published : 2015.12.30
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Abstract

There are two kinds of cartons for beverage packaging, one is aseptic brick (AB) type and the other is gable top (GT). In this study, AB and GT were used as a raw material of recycled paper to investigate the recyclability at their varied blending ratios. Fiber consistency at pulping decreased as the blending ratio of AB increased. As a result, a lot of fines were generated from AB and flakes from GT increased because shear force in pulper decreased. Bulk of handsheets was more than $2.0cm^3/g$, and ISO brightness decreased as the blending ratio of AB increased. The best condition to recycle beverage cartons is to discriminate each cartons separately because of differences in the composition. However, there are problems such as the limit of the collection system and social costs. Therefore, it is assumed that the blending ratios of AB should be adjusted at less than 20% for effective recycling of beverage cartons.

Keywords

References

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