적색, 황색 및 녹색계열 압화용 소재의 변색방지에 관한 연구

Abstract

Present study was conducted in order to understand methods for minimizing discoloration of materials belonging to the red, yellow, and green color series that are most often used in pressed flowers. As official materials, red rose 'cardinal', yellow rose 'gold medal', and green leaves from the red rose 'cardinal' were used. These materials underwent 30 seconds of heat treatment in hydrothermal fluid of Al, AlK, Mg and CuSO4, diluted 5%, 10%, 20%, 30%, and 40% respectively in distilled water. They were then dried and examined in terms of discoloration according to days exposed to ultraviolet rays. As a result of examining the influence of treatment using distilled Al, AlK, Mg and CuSO4 fluids for the red rose 'cardinal,' it was determined that Al fluid treatment was effective in prevention of discoloration, especially within 5-20% dilution range. Also, prevention of discoloration was most effectively achieved in 5% and 30% dilution for AlK, 20-30% for Mg, and 5 % for CuSO4. As a result of examining the influence of treatment using distilled Al, AlK, Mg and CuSO4 fluids for the yellow rose 'gold medal,' it was determined that Al fluid treatment was most effective in preventing discoloration with 30% dilution. AlK showed some prevention effects when diluted 10% but showed no significant difference from having undergone no treatment at all. For Mg, it was 30% and for CuSO4, 40% dilution percentage that effectively prevented discoloration. As a result of examining the influence of treatment using distilled Al, AlK, Mg and CuSO4 fluids for the green leaves of red rose 'cardinal,' it was found that Al fluid treatment was most effective in preventing discoloration with 5% and 30% dilution. Also, prevention of discoloration was most effectively achieved in 10-20% dilution for AlK, 5% for Mg, and 20-40% for CuSO4. Summarizing above results, the 30-second-soaking treatment of red and yellow roses, as well as green rose leaves used for pressed flowers into Al, AlK, Mg, and CuSO4 hydrothermal dilutions was effective in preventing discoloration but showed some difference in terms of appropriate concentration of liquids. Therefore in using hydrothermal treatment by dilution liquids of Al, AlK, Mg and CuSO4 for preventing discoloration of pressed flower materials, it is suggested that appropriate concentration for each material be taken into consideration.