Application of Dry Strength Agents for the Manufacture of Low Basis Weight Corrugating Medium based on Recycled Aseptic Carton Fibers

Ji Seon Choi; Seon Yong Kim; Byul Sim; Kwang Seob Lee; Myoung Ku Lee; Jeong Yong Ryu

doi:10.7584/JKTAPPI.2019.06.51.3.13

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Application of Dry Strength Agents for the Manufacture of Low Basis Weight Corrugating Medium based on Recycled Aseptic Carton Fibers 저평량 골심지의 강도 개선을 위한 멸균팩 재활용 섬유와 건조지력증강제의 적용

30 June 2019. pp. 13-22

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Abstract

Korean old corrugated containers (KOCC) have insufficient compressive strength because the bonding potential of the unsorted recovered fibers is poor. Compared to the nature of KOCC, the recovered aseptic carton is a high-quality resource produced from virgin pulp, which is expected to improve the strength of a testliner. In this study, the usage of recycled aseptic carton fibers was attempted to improve the strength properties of corrugating medium paper. In addition to recycled aseptic carton fibers, the application of a dry-strength agent was attempted to improve the bonding potential of fibers.

Consequently, the compressive strength increased when the retention of fines in the mixed stock of KOCC and aseptic fibers increased. Meanwhile, aseptic carton comprised fibers with high stiffness and low flexibility; hence, the aseptic carton fibers exhibited a higher compressive strength than KOCC but did not fully manifest the efficiency of dry-strength agents. These results suggest that recycled aseptic carton fibers with or without beating should be used to obtain a sufficient compressive strength of the corrugating medium. The selective application of the dry-strength agent to the KOCC instead of the aseptic carton fibers may also be beneficial.

Keywords

Corrugating medium paper

compressive strength

dry strength agent

aseptic carton

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 : 51
No :3
Pages :13-22
Received Date : 2019-03-11
Revised Date : 2019-04-19
Accepted Date : 2019-04-22
DOI :https://doi.org/10.7584/JKTAPPI.2019.06.51.3.13

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

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Literature Cited