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2020 Vol.52, Issue 6 Preview Page
Comparison of Pulping Characteristics of Barrier Coated Papers by Image Evaluation

이미지 평가에 의한 배리어 코팅 종이의 해리 특성 비교

Kwang-Seob Lee1
,
Cheol-Woo Lee2
,
Myung-Hoon Han3‡
,
Jeong-Young Ryu4†
이광섭 1
,
이철우 2
,
한명훈 3‡
,
류정용 4†
1Changgang Institute of Paper Science and Technology, Kangwon National University, Chuncheon
2Dept. of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon
3University-Industry Cooperation Foundation & Division of Business Administration and Accounting, College of Business Administration, Kangwon National University, Chuncheon
4Dept. of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon
1강원대학교 창강제지기술연구소, 책임연구원
2강원대학교 산림환경과학대학 제지공학과, 학생
3강원대학교 산학협력단 & 경영대학 경영·회계학부, 부교수
4강원대학교 산림환경과학대학 제지공학과, 교수
†Corresponding author: E-Mail: jyryu@kangwon.ac.kr (Address: Dept. of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chunchon, Republic of Korea)
‡Co-corresponding Author: E-Mail: 96332472@kangwon.ac.kr (Address: University-Industry Cooperation Foundation & Division of Business Administration and Accounting, College of Business Administration, Kangwon National University, Chuncheon, Republic of Korea)
30 December 2020. pp. 94-102
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Abstract

Print samples laminated with oriented polypropylene film (OPP) or coated with UV varnish and acrylic emulisions were disintegrated at low or high consistency and analyzed to evaluate the recyclability. The samples laminated with oriented polypropylene film were well separated from a paper to film form at each pulping consistency, regardless of the adhesion method (water, oil or heat based). It is believed that this not only prevents the film from entering the process, but also facilitates the removal of the film form the pulper. However, since the UV varnish layer is fragmented by the pulping action, UV varnish layer fragments smaller than the screen slot size are considered to be a cause that can affect the quality of the final product after passing through the screen and mixing into the stock. Acrylic emulsion has been used as a coating agent or adhesive in various industries, so the pulping efficiency of acrylic emulison coated paper is good, and there is little residue filtered through 0.15 mm slot screen.

Keywords
Recyclability
oriented polypropylene film
UV varnish coating
acrylic emulision
pulping process
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 :94-102
  • Received Date : 2020-11-23
  • Revised Date : 2020-12-11
  • Accepted Date : 2020-12-14
  • DOI :https://doi.org/10.7584/JKTAPPI.2020.12.52.6.94
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