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2025 Vol.57, Issue 5 Preview Page

Original Paper

Natural Aging Characteristics of Gelatin Sizing Traditional Korean Paper Used Replicating of the Annals of the Joseon Dynasty

젤라틴 사이징 조선왕조실록 복본용 전통한지의 자연열화 특성

Seog-Ran Kim1
,
Tae-Ho Choi2†
김 석란1
,
최 태호2†
1Department of Cultural Heritage Science, Chungbuk National University
2Department of Wood & Paper Science, Chungbuk National University
1충북대학교 문화재과학과, 대학원생
2충북대학교 목재·종이과학과, 교수
†Corresponding Author: E-mail: tchoi@cbnu.ac.kr (Address: Department of Wood & Paper Science, Chungbuk National University, Cheongju, 28644, Republic of Korea)
30 October 2025. pp. 51-59
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Abstract

This study examines the changes in color and physical properties of non-sized and gelatin-sized samples of traditional Korean paper, produced in 2011 for replicating the Annals of the Joseon Dynasty, under two aging conditions: accelerated aging and natural indoor aging until 2022. Analysis showed that during natural aging, yellowing was less pronounced in gelatin-sized samples than in non-sized ones. In contrast, under accelerated aging, both types of paper exhibited excellent color fastness regardless of sizing. Air permeability increased during accelerated aging for gelatin-sized and non-sized samples, but it decreased significantly for gelatin-sized samples during natural aging. Gelatin-sized paper displayed higher tensile strength, elongation, tensile energy absorption (TEA), burst strength, and folding endurance compared to non-sized samples. Following natural aging, both paper types showed increased tensile strength, elongation, TEA, burst strength, tear strength, and folding endurance compared to their original states before aging. Conversely, after accelerated aging, tensile strength, elongation, TEA, burst strength, and tear strength decreased for both types, though folding endurance showed minimal decline. Regardless of the aging method, tensile strength, elongation, TEA, and folding endurance were higher consistently higher in the laid direction, whereas tear strength was greater in the chain direction.

Keywords
Traditional Korean paper (Hanji)
natural aging
accelerated aging
gelatin sizing
replicating paper
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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 : 57
  • No :5
  • Pages :51-59
  • Received Date : 2025-09-19
  • Revised Date : 2025-10-14
  • Accepted Date : 2025-10-15
  • DOI :https://doi.org/10.7584/JKTAPPI.2025.10.57.5.51
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