生漆是漆树在代谢过程中的次生产物。割断漆树树皮次生韧皮部的“漆汁道”,漆液流出,即为生漆。能分泌漆液的植物有两科、八属共五十多种,但经济价值高的,主要是漆树一种。生漆属天然树脂,是一种优质涂料。主要成分是漆酚,含量40—70％;其余为胶质、漆酸、油分以及微量的钙、锰、镁、铝、钾、钠、硅、有机酸以及葡萄糖等。生漆涂刷所形成的漆膜坚硬而富有光泽,密封 Lacquer is the secondary product of the tree in the metabolic process. Cut the tree bark secondary phloem of the “paint juice Road,” paint flow out, that is, lacquer. There are two families of plants that can secrete liquid paint, a total of more than fifty kinds of eight genera, but the economic value is high, mainly a lacquer tree. Lacquer is a natural resin, is a high quality paint. The main component is urushiol, the content of 40-70%; the rest of the gum, paint acid, oil and traces of calcium, manganese, magnesium, aluminum, potassium, sodium, silicon, organic acids and glucose. Lacquer paint brush formed by the hard and shiny film, sealed