The Dyeing Properties of Hanji by Neolitsea sericea Koidz Extracts

참식나무(Neolitsea sericea Koidz) 추출물을 이용한 한지의 염색특성

  • Jo, Hyun-Jin (Dept. of Wood Chemistry & Microbiology, Korea Forest Research Institute) ;
  • Lee, Sang-Kueg (Dept. of Wood Chemistry & Microbiology, Korea Forest Research Institute) ;
  • Lee, Hak-Ju (Dept. of Wood Chemistry & Microbiology, Korea Forest Research Institute) ;
  • Kang, Ha-Young (Dept. of Wood Chemistry & Microbiology, Korea Forest Research Institute) ;
  • Choi, Don-Ha (Dept. of Wood Chemistry & Microbiology, Korea Forest Research Institute) ;
  • Choi, In-Gyu (Department of Forest Science, College of Agriculture and Life Sciences, Seoul National University)
  • 조현진 (국립산림과학원 화학미생물과) ;
  • 이상극 (국립산림과학원 화학미생물과) ;
  • 이학주 (국립산림과학원 화학미생물과) ;
  • 강하영 (국립산림과학원 화학미생물과) ;
  • 최돈하 (국립산림과학원 화학미생물과) ;
  • 최인규 (서울대학교 농업생명과학대학 산림과학부)
  • Published : 2007.06.30

Abstract

To investigate the dying properties of the extracts from different parts of Neolitsea sericea Koidz on Hanji, the dye materials were prepared from the extraction methods using $1{\ell}$ of hot water and alkaline solution with 40 g of leaves, bark, and wood each. K/S values and H (V/C) values of the Hanji dyed at different pH, temperature, time, and concentration of extract were determined using a spectrophotometer, and the maximum absorption wavelength of the dyed Hanji was 400 nm. From the analyzed data, the optimum dying conditions were pH 5 of dying solution, $70^{\circ}C$ of dying temperature, 40 minutes of dying time, and 100% of dye concentration. The color of dyed Hanji was Y to YR and color R- and RP-type could also be formed from the different treatment conditions. From the dyeing using mordants, amount of the bound dye materials was high in the pre-mordanted Hanji and in Hanji treated with extracts from the leaves. Also, the amount of the bound dye materials in the pre-mordanted Hanji was higher when aluminum and iron mordant was used rather than other mordants. Not likely with this, amount of the bound dye materials in the post-mordanted Hanji was higher when copper mordant was used. In color, Hanji treated extracts from the leaves appeared as Y-type and ones treated with extracts from bark and wood showed YR-type.

Keywords

References

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