Study of Method for Bulkier Structure of Wet Pulp Mold Manufacturing Process by Using Low Polarity Solvent

Dong Sung Kim; Gwang Sik Choi; Yong Joo Sung

doi:10.7584/JKTAPPI.2019.12.51.6.76

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2019 Vol.51, Issue 6 Preview Page Next Page

Study of Method for Bulkier Structure of Wet Pulp Mold Manufacturing Process by Using Low Polarity Solvent 저극성 유기용매 적용을 통한 습식펄프몰드 고벌크화 연구

30 December 2019. pp. 76-83

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Abstract

The bulk of pulp mold would be one of the very important properties as environmental friendly packaging material or water-absorption material. Since the pulp mold is made of various plant fibers, such as wood and non-woody fibers including recycled fiber, the structure of pulp mold becomes more dense during drying process by hydrogen bonding originated from the polarity of water. In this study, the effects of the application of the low polarity solvent such as ethyl alcohol as the forming solution and the spraying solvent after a vacuum drainage process were evaluated. The solution of the different mixing ratio between water and low polarity solvent was applied for this experiment. The results showed that the higher contents of the low polarity solvent in the forming solution resulted in the bulkier structure, the faster drying speed and the higher water absorption properties. The spraying treatment with the mixing solution with the low polarity solvent led to the similar effects on the pulp mold structure, which showed that the bulkier structure could be achieved by changing the polarity of water in the wet pulp mold with the lower polarity solvent.

Keywords

Pulp mold

low polarity solvent

bulk

drying speed

water absorption

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 :6
Pages :76-83
Received Date : 2019-11-26
Revised Date : 2019-12-09
Accepted Date : 2019-12-11
DOI :https://doi.org/10.7584/JKTAPPI.2019.12.51.6.76

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

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Literature Cited