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2020 Vol.52, Issue 1 Preview Page
Effects of Wet Pressing Temperature, Filler Addition, and PAE-Based Strength Agents on Initial Wet-Web Strength of HwBKP-SwBKP Sheet

습윤압착 온도, 충전제, PAE 기반 지력증강제가 HwBKP-SwBKP 습윤지필강도에 미치는 영향

Jin-Soo Kim1
,
Byoung-Uk Cho2†
김진수 1
,
조병욱 2†
1Department of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University
2Program of Paper Science & Engineering, Division of Forest Material Science and Engineering, College of Forest and Environmental Sciences, Kangwon National University
1강원대학교 산림환경과학대학 제지공학과, 학생
2강원대학교 산림환경과학대학 산림응용공학부 제지공학전공, 교수
†Corresponding author: E-Mail: bucho@kangwon.ac.kr (Address: Program of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, 24341, Republic of Korea)
28 February 2020. pp. 66-76
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Abstract

Effects of wet pressing temperature, fillers addition, and the type and the dosage of strength agents on initial wet-web strength were investigated. Two types of strength agents consisting of PAE (polyamideamine-epichlorohydrin)-PVA (polyvinyl alcohol), and PAE-MP (micropolymer) were applied. It was found that the addition of the PAE-PVA strength agent can improve the initial wet-web strength of the HwBKP-SwBKP sheets in any conditions while the PAE-MP strength agent may not be proper for the papermaking stock with filler. When the PAE-MP strength agent was added to the stock with filler, initial wet-web strength was deteriorated possibly due to the heavy flocculation of fillers and poor paper formation. Increasing wet pressing temperature enhanced dewatering and increased the solid content of wet-web, resulting in the improved initial wet-web strength. The efficiency of the strength agents was improved with increasing wet pressing temperature (i.e. at a high solids content of web) possibly due to the closer distance between fibers. In addition, increasing the added amount of filler increased the solids content of wet-web after pressing. However, the addition of filler deteriorated the initial wet-web strength and reduced the efficiency of the strength agents.

Keywords
Initial wet-web strength
wet pressing temperature
solids content
filler addition
strength agents
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 :1
  • Pages :66-76
  • Received Date : 2020-02-03
  • Revised Date : 2020-02-20
  • Accepted Date : 2020-02-21
  • DOI :https://doi.org/10.7584/JKTAPPI.2020.02.52.1.66
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