Abstract
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 re-cycled 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 3of handsheets was more than 2.0 cm/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 compo-sition. 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 http://dx.doi.org/10.7584/ktappi.2015.47.6.123Journal of Korea TAPPIVol. 47. No. 6, 2015, 123-129pISSN (Print): 0253-3200Printed in Korea
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