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2026 Vol.58, Issue 2 Preview Page

Original Paper

Influence of Different Pulp Fiber Ratios on the Properties of Paper for Liquid Packaging
Junchao Li1
,
Jiachuan Chen2†
,
Guangcai Xiao3‡
,
Yueying Wang1
,
Baobin Wang4
,
Guihua Yang2§
1State Key Laboratory of Green Papermaking and Resource Recycling, Qilu University of Technology, Graduate Student
2State Key Laboratory of Green Papermaking and Resource Recycling, Qilu University of Technology, Professor
3Asia Symbol (Shandong) Pulp and Paper Co., Ltd., Senior Engineer
4State Key Laboratory of Green Papermaking and Resource Recycling, Qilu University of Technology, Associate Professor
†Corresponding Author: E-mail: chenjc@qlu.edu.cn (Address: State Key Laboratory of Green Papermaking and Resource Recycling, Qilu University of Technology, Jinan, 250353, China)
‡Co-Corresponding Author: E-mail: guangcai_xiao@asiasymbol.com (Address: Asia Symbol (Shandong) Pulp and Paper Co., Ltd., Rizhao 276800, China)
§Co-Corresponding Author: E-mail: ygh@qlu.edu.cn (Address: State Key Laboratory of Green Papermaking and Resource Recycling, Qilu University of Technology, Jinan, 250353, China)
30 April 2026. pp. 26-38
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Abstract

Facing the increasing depletion of fossil resources and the pollution of petroleum-based plastic packaging materials, the development of recyclable paper-based packaging materials that can replace plastics has become a worldwide hotspot. The hand-sheet paper for liquid packaging were prepared from unbleached hardwood kraft pulp (KP), chemical-mechanical pulp and commercial bleached softwood chemical pulp. Influence of pulp fiber ratios and the pulp beating degree of unbleached KP pulp on the properties of the hand-sheet paper for liquid packaging were investigated. The results showed that the optimal paper preparation conditions were pulp beating degree of 45 °SR, un-oxygen-delignified hardwood kraft pulp of 20%, oxygen-delignified hardwood kraft pulp of 20%, softwood chemi-mechanical pulp of 8%, hardwood chemi-mechanical pulp of 2%, and bleached softwood chemical pulp of 50%, in which the hand-sheet paper exhibited better performance, with a tensile index of 82.6 N·m/g, a tear index of 1.91 mN·m2/g, a burst index of 5.60 kPa·m2/g, a ring crush of 135.4 KN/m and a water absorption value of 176.1 g/m2. Increase of pulp beating degree of the unbleached hardwood kraft pulp are beneficial to the improvement of the strength properties and hydrophobic performance of the hand-sheet paper.

Keywords
Influence
pulp
properties
hand-sheet paper
fiber ratio
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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 : 58
  • No :2
  • Pages :26-38
  • Received Date : 2025-12-09
  • Revised Date : 2026-03-01
  • Accepted Date : 2026-03-03
  • DOI :https://doi.org/10.7584/JKTAPPI.2026.4.58.2.26
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