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2020 Vol.52, Issue 6 Preview Page
Strength Improvement of the Coloring Paper for Fruit Bag by Using Non-woody Bamboo Kraft Pulp

비목질계 대나무 화학펄프 적용에 따른 과일봉지 원지의 강도 향상

Hae Min Jo1
,
Ji Young Lee2†
,
Su Ho Kim1
,
Yeon Hui Lee1
조해민 1
,
이지영 2†
,
김수호 1
,
이연희 1
1Department of Forest Products, Gyeongsang National University, Jinju, 52828
2Department of Environmental Materials Science/IALS, Gyeongsang National University, Jinju, 52828
1경상대학교 임산공학과, 학생
2경상대학교 환경재료과학과/농업생명과학연구원, 교수
†Corresponding author: E-Mail: paperyjy@gnu.ac.kr (Address: Department of Environmental Materials Science/IALS, Gyeongsang National University, Jinju, 52828, Republic of Korea)
30 December 2020. pp. 132-139
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Abstract

In this study, we evaluated the effect of bamboo bleached kraft pulp (BKP) on the strength of the coloring paper used for pear paper bags. The characteristics of bamboo BKP were measured to compare them with those of softwood BKP and hardwood BKP. Handsheets from bamboo and hardwood BKPs were prepared at various mixing ratios, and their strengths were then analyzed. After that, a mill trial was performed to produce a prototype of coloring paper with bamboo BKP, and the effect of bamboo BKP on the strength of the coloring paper was finally determined.

The initial freeness and fiber shape of bamboo BKP were similar to those of hardwood BKP, although the average fiber length and curl of bamboo BKP were higher than those of hardwood. As the mixing ratio of bamboo BKP increased, the strength of the handsheets increased, indicating the enhancing effect of bamboo BKP on the strength of coloring paper. As a result of the mill trial of coloring paper in the specialty paper mill, it was found that the tensile strength increased by 27.8% and burst strength by 20.0% when bamboo chemical pulp replaced 20% of the hardwood chemical pulp. Therefore, it was concluded that bamboo chemical pulp can replace and improve the strength of hardwood chemical pulp for manufacturing coloring paper.

Keywords
Fruit bag
coloring paper
bamboo bleached kraft pulp
strength
specialty paper
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 : 52
  • No :6
  • Pages :132-139
  • Received Date : 2020-11-25
  • Revised Date : 2020-12-17
  • Accepted Date : 2020-12-18
  • DOI :https://doi.org/10.7584/JKTAPPI.2020.12.52.6.132
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