Because what the ancients called it? Yin seal? It means that the seal will press out the marks of depression on the inkpad. Therefore, the seal with the characters and patterns protruding outward is called? Yin seal? .

is this different from the modern one? Yin seal? The concept is completely opposite.

The root cause of this difference lies in the fact that ancient people and modern people adopted different dividing standards. What is it? Yin Wen? ?

In ancient China, there was such a rule: Yin inside, Yang outside, Yin below and Yang above.

in the seal? Yin Wen? And? Yangwen? , it depends on this.

as we all know, before we use the seal, we first need to press the seal on the inkpad, so that the engraving on the seal is dyed with vermilion of the inkpad, and then we can print the pattern on the paper.

and there are two kinds of seals, one is convex outward, and the other is concave inward.

the pattern printed by the concave engraving is white characters on a red background. What do we call this pattern? Yin Wen? . The seal that can be engraved in yangwen was called in ancient times. Yin seal?

what is carved out of the convex seal? Yangwen? , but the ancients called this seal? Yin seal? .

The ancient standard of distinguishing yin and yang in engraving is very strange now, and even in ancient times, it is a very confusing concept.

So what did the ancients define it on?

there are two kinds of sayings. one is that the ancients thought that paper and engraving were a pair of yin and yang. if the engraving was in yang, then the seal could only be? Yinyin? This statement originated from what the ancients believed? Yin and yang? Thought, and? When clapping, the left palm must be the right palm? It's the same thing.

But this statement has not received much support.

a more recognized saying is that the ancients were based on? Press the seal into the inkpad, and engrave the case to form the yin and yang of the pattern on the inkpad? To determine the yin and yang of the seal.

Simply put, a raised seal can print a positive text on paper, but pressing it in the inkpad will press the inkpad out of a concave text.

so, this convex seal was called in ancient times? Yin seal? .