Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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Evaluation of the Effects of Sulfur Dioxide(SO2) on Conservation of Paper

종이의 보존을 위한 이산화황 가스(SO2)의 영향 평가

  • Lim, BoA (Conservation Science Division, National Research Institute of Cultural Heritage) ;
  • Kim, Myoungnam (Conservation Science Division, National Research Institute of Cultural Heritage) ;
  • Lee, Sunmyung (Conservation Science Division, National Research Institute of Cultural Heritage)
  • 임보아 (국립문화재연구소 보존과학연구실) ;
  • 김명남 (국립문화재연구소 보존과학연구실) ;
  • 이선명 (국립문화재연구소 보존과학연구실)
  • Received : 2012.11.17
  • Accepted : 2012.12.14
  • Published : 2012.12.30
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Abstract

The effects of sulfur dioxide on paper were investigated since these sulfur compounds could cause damages on cellulose and organic materials in papers. For the reason, exposure ageing tests were performed on traditional Korean paper (Hanji) and two different types of modern paper (acid-free and acid paper) to determine the damage with regard to the optical as well as physicochemical properties according to the varying $SO_2$ concentration. As a result, optical properties were not changed while physical and chemical peoperties were remarkably changed with the exposure period. In the case of pH, $SO_2$ had little impact on the pH of the Hanji and acid-free paper while the pH of acid paper was remarkably decreased. The decrease of the folding endurance of the Hanji was relatively smaller than those of the acid-free and acid paper. The results prove Hanji was more resistant to $SO_2$ than the modern paper in terms of optical, physical and chemical properties. In addition, it was also suggested that $SO_2$ concentration should be kept below 0.01 ppm for the preservation of paper objects.

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References

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