Which country first invented the fire paint seal?
Fire paint is also called sealing paint. Legend has it that a fire lacquer seal used by Emperor Liu Bang, the ancestor of the Han Dynasty, was at an auction in Hong Kong.
Sold at auction for HK$400,000. Around 1626, the Frenchman Russo experimented with mixing tar, cinnabar and insect paint (natural lacquer in India) to heat it into fire paint, which was red or brownish-red in color. Then choose a metal mold with a suitable pattern, print it on the fire paint that has not yet solidified, and leave a clear pattern after cooling. Fire paint is often used when stationery is solidified.

Even in daily use, it is often used, such as avoiding the theft of all important documents, as well as sealing the cause, etc., must be used with fire paint.