Evaluation of the Physical Properties of Unbleached Kraft Pulp Produced from Persimmon Byproducts

Ji Young Lee; Hae Min Jo; Do Hoon Kim; Soo Hyun Lee; Yong Joo Sung

doi:10.7584/JKTAPPI.2022.08.54.4.5

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2022 Vol.54, Issue 4 Next Page

Evaluation of the Physical Properties of Unbleached Kraft Pulp Produced from Persimmon Byproducts 감나무 부산물로 제조한 미표백 크라프트 펄프의 물리적 특성 평가

30 August 2022. pp. 5-10

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Abstract

This study examined the features of unbleached kraft pulp produced from persimmon byproducts (PB-UKP), which can be used to replace commercial kraft pulp. PB-UKPs prepared through the kraft pulping laboratory process were beaten to 500 and 400 mL CSF. Their fiber properties were subsequently analyzed and compared with those of commercial hardwood bleached kraft pulp (Hw-BKP). The physical properties of handsheets made from PB-UKP and Hw-BKP with a grammage of 60 g/m² were also evaluated.

PB-UKP and Hw-BKP exhibited similar initial fiber properties. However, after beating, the fiber length of PB-UKP was longer than that of Hw-BKP, and the fines content of Hw-BKP increased considerably. Moreover, no noticeable difference was observed in the fiber width of the pulp. As the beating time increased, sheet bulk decreased, and the sheet strengths increased. The tensile and burst strengths of the handsheet made from PB-UKP were higher than those made from Hw-BKP at a similar sheet bulk because PB-UKP had a higher long fiber content. Thus, PB-UKP could be used as a colored raw material to manufacture paper products.

Keywords

Agricultural byproduct

persimmon byproduct

unbleached kraft pulp

beating

fiber length

paper strength

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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 : 54
No :4
Pages :5-10
Received Date : 2022-06-18
Revised Date : 2022-07-08
Accepted Date : 2022-07-11
DOI :https://doi.org/10.7584/JKTAPPI.2022.08.54.4.5

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

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Literature Cited