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

Jin Ho Seo; Tai Ju Lee; Dong Jin Lee; Myoung Ku Lee; Jeong Yong Ryu

doi:10.7584/ktappi.2015.47.6.123

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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

30 December 2015. pp. 123-129

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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 2.0 cm³/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

Gable top

aseptic brick

recycling

pulping

References

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Information

Publisher :Korea Technical Association of The Pulp and Paper Industry
Publisher(Ko) :한국펄프종이공학회
Journal Title :Journal of Korea TAPPI
Journal Title(Ko) :펄프종이기술
Volume : 47
No :6
Pages :123-129
Received Date : 2015-11-12
Revised Date : 2015-12-10
Accepted Date : 2015-12-12
DOI :https://doi.org/10.7584/ktappi.2015.47.6.123

Journal of Korea TAPPI ISSN:0253-3200(Print) 펄프종이기술

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Literature Cited