The intaglio is concave, and the part of the pattern can be concave, so that the surface of the pattern formed is concave. In block printing, the pigment is pressed into the lower groove and the pattern is printed on the paper. Inscriptions can make the picture more delicate and show more layers by stamping, which is a technique often used in painting.
The male engraving is a convex engraving pattern, and the pattern is partially convex, forming a convex state on the surface. In the printing process, only the male block can directly print patterns, so the male block is often used to print some words and simple lines.
As for the specific choice of negative engraving or positive engraving, it depends on the specific situation, such as the strong ink flavor or color of the work. Sometimes, in order to achieve better results, it may be necessary to use both negative engraving and positive engraving in the works to make the patterns more vivid and rich.
The above contents are for reference only. For more accurate information, please consult professionals.