Transfer printing method and transfer printing system for non-rectangular coating

The invention discloses a transfer printing method and a transfer printing system for a non-rectangular coating, and belongs to the technical field of coating transfer printing. The method comprises the following steps: obtaining a non-rectangular coating; a gasket is arranged on the substrate layer, the non-rectangular coating is arranged on the substrate layer, and a to-be-pressed assembly is obtained; the non-rectangular coating and the gasket in the to-be-pressed assembly are rolled at the same time, so that rolling transfer printing of a coating body is completed; before rolling, the gasket and the non-rectangular coating are arranged on the substrate layer at the same time to form the to-be-pressed assembly, so that the gasket and the non-rectangular coating bear pressure together in the rolling process; the maximum difference value of the change of the contact area between the to-be-pressed assembly formed by the gasket and the non-rectangular coating and the pressing roller when the to-be-pressed asse