NATURAL DYEING METHOD FOR WOOD PRODUCTS USING PINE TREE BARK EXTRACT AND THE NATURAL DYED WOOD PRODUCTS THEREBY

摘要

PURPOSE: A natural dye method of timber is provided to manufacture excellent natural dye timber with high durability in an economical and a simple method. CONSTITUTION: Natural dye is extracted from white pine by using mixed liquid generated by mixing water, ethanol, methanol, ethyl acetate, and ferment alcohol. The timber is dyed with the extracted natural dye extract. Solvent is fermentation solution including ethanol concentration of 95 % ( v/v) to 1 % ( v/v). The rate of solvent and white pine bark is a volume ratio of 1 to 3 or 1 to 50. The timer is immersed in the dye during 72 hours by controlling the temperature of the extract.