The Search and Dyeing Properties of Natural Dyes Resources(I) - The Dyeing Properties of Boehmeria tricuspis Makino Extracts by pH -

천연염료자원 탐색 및 염색특성(I) - 거북꼬리(Boehmeria tricuspis Makino)추출물의 pH에 따른 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) ;
  • 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 (Dept. of Forest science, College of Agriculture & Life Sciences, Seoul National University)
  • 조현진 (국립산림과학원 화학미생물과) ;
  • 이상극 (국립산림과학원 화학미생물과) ;
  • 강하영 (국립산림과학원 화학미생물과) ;
  • 최돈하 (국립산림과학원 화학미생물과) ;
  • 최인규 (서울대학교 농업생명과학대학 산림과학부)
  • Published : 2006.06.30

Abstract

pH dependent K/S values, Hue, Value, and Chroma change of the hot-water and alkali extract of Boehmeria tricuspis have investigated as a part of the studies on natural dye resources. Maximum optical absorption of the dyed cotton, Korean paper, and silk with the extract were observed at 400 nm. According to the result of pH dependent K/S values change, it tended to increase as pH decreased except for the silk and there was no change near pH 7. For Hue, the materials dyed with hot-water and alkali extract indicated YR and R color, respectively. The change in Value of the dyed materials tended to increase, whereas Chroma of them decreased as the pH moved to alkali conditions although there were no significant changes near pH 7. As a result, it is considered that the optimum pH would be 7 when the mentioned materials are dyed with Boehmeria tricuspis extract.