열화된 밀랍지 시제품의 습식크리닝 처리효과 분석

Effect of Wet Cleaning on the Property of Aged Duplicated Beeswax-Treated Paper

  • 최경화 (국립문화재연구소 복원기술연구실) ;
  • 박지희 (국립문화재연구소 복원기술연구실)
  • Choi, Kyoung-Hwa (Research Division of Restoration Technology, National Research Institute of Cultural Heritage) ;
  • Park, Ji-Hee (Research Division of Restoration Technology, National Research Institute of Cultural Heritage)
  • 투고 : 2010.11.01
  • 심사 : 2010.11.22
  • 발행 : 2010.12.30

초록

The beeswax-treated volumes of the Annals of Joseon Dynasty, designated as a UNESCO's Memories of the World, have been more seriously damaged than the untreated ones. As a continuous effort to develop the optimal conservation techniques for the damaged beeswax-treated volumes of the Annals, this study examines the effectiveness of wet cleaning on the conservation of the beeswax-treated paper. To do this, wet cleaning is performed on the duplicated beeswax-treated paper and the Hanji that are aged at $105^{\circ}C$ for 30 days using distilled water of $24^{\circ}C$ and $50^{\circ}C$. As results, it is observed that pH of the both the beeswax-treated paper and the Hanji increase, indicating the removal of the acid of the aged paper samples through wet cleaning. After the wet cleaning, however, the physical properties and viscosity of the Hanji decrease, while those of the beeswax-treated paper increase. It is also found that wet cleaning contributes to enhancement of most optical properties of the Hanji, but not for those of the beeswax-treated paper except for the $b^*$ value. Analyses of UV absorbance of cleaning water demonstrate that both the beeswax-treated paper and the Hanji have typical spectra of chromophore compounds of cellulose.

키워드

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