Lacquerware

Lacquer

　　Lacquer, also known as raw lacquer harvesting, is a natural resin obtained by tapping lacquer trees. The sap initially flows out milky white, gradually turning greenish-gray upon contact with air, and eventually becoming black. At the same time, the liquid thickens from thin to viscous, and when stored in sealed containers, it remains unchanged for a long time. The main component of raw lacquer is urushiol, with a content of 40–70%. Other components include: 20–40% water, 10% resinous matter, and 10% nitrogenous substances. Raw lacquer dries and hardens in moist air, and features properties such as acid and alkali resistance, high heat resistance, moisture resistance, corrosion resistance, and excellent insulation — hence it is known as the “king of coatings.” It holds an important position in the national economy and is an indispensable raw material in production and daily life. Furniture coated with lacquer has a luxurious and beautiful appearance, with glossy and elegant colors, and offers durability, wear resistance, and resistance to chemical agents. (Zhaotong)