Depth of layers

Archaeological work has revealed that people began to use the fluid from lacquer trees as early as 8,000 years ago. "Because of its fine physical and chemical properties, natural lacquer as a coating material played a vital role in ancient times," says Yang Peizhang, 47, a lacquer artist and associate professor at the Academy of Arts and Design, Tsinghua University, in Beijing.

He is referring to a lacquer bow found at a grave site of the Neolithic Kuahuqiao Culture in Hangzhou, which is over 1,000 years older than the Hemudu bowl, and therefore considered the earliest lacquer object found in the country.

Lacquer sap was one of the early gifts people received from nature. It is milky and grayish when collected, and as it is exposed to the air, it turns a dark brown color.

After being purified, the lacquer is ready for use. It protects objects from water, humidity and insect infestation so they are more durable. It can also be mixed with color pigments for decorative purposes.

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