What are the cases and patterns of folk paper-cutting in Song Dynasty?

Folk also use paper-cutting to carve figures in shadow play with the skins of animals such as donkeys, cows, horses and sheep. The engraved version made by the blue printed cloth technology is carved into patterns with oiled paper cardboard, and the scratched patterns are cut and carved with paper, divided into negative engraving and positive engraving, and long lines should be cut off to distinguish between true and false.