Effect of Morphological Properties of Pulp Fibers on the Sheet Uniformity in a Local Closed Place

Shin Young Park; Heetae Park; Jonghyun Shin; Jin-Ho Hyun; Hye Jung Youn

doi:10.7584/JKTAPPI.2018.04.50.2.36

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Effect of Morphological Properties of Pulp Fibers on the Sheet Uniformity in a Local Closed Place 펄프 섬유의 형태학적 특성이 국부적 폐쇄공간 내 종이 지합에 미치는 영향

30 April 2018. pp. 36-43

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Abstract

Effect of morphological properties of four kinds of pulp fibers (Hw-BKP, Sw-BKP, BCTMP, and mulberry fiber) on sheet formation manufactured in a local closed place was investigated. According to the fiber analysis, BCTMP had the shortest fiber length followed by Hw-BKP, Sw-BKP, and mulberry fiber. The sediment concentration and critical concentration obtained from crowding factor of the pulp increased as the fiber length decreased, which means longer fibers can flocculate at relatively lower concentration. The formation of the sheet became even as the fiber length and the pulp concentration decreased although the sheets of Sw-BKP and mulberry fiber showed poor formation in all conditions. Shaking usually had a positive effect on the sheet formation, but severe shaking rather worsened the formation of the sheet in some cases. When carboxymethylated cellulose nanofibrils (CM-CNF) was added, sheet showed more uniform formation.

Keywords

Concentration

crowding factor

pulp fiber morphology

sheet formation

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 : 50
No :2
Pages :36-43
Received Date : 2018-04-02
Revised Date : 2018-04-22
Accepted Date : 2018-04-23
DOI :https://doi.org/10.7584/JKTAPPI.2018.04.50.2.36

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

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