Patent ID: 11913838
Assignee: SCREEN HOLDINGS CO., LTD.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 12:
13. An inspection method of inspecting a printed image printed on a print surface of a transparent base material,
the printed image including
a process-color image that is formed by inks of a plurality of process colors, and
a non process-color image that is formed by an ink of a non-process color different from the plurality of process colors and that covers the process-color image, the method comprising:

a) a process of, in a state where a background plate having a background surface that faces the print surface of the transparent base material is disposed on a print surface side of the transparent base material, imaging the transparent base material from another side opposite the print surface side of the transparent base material; and
b) a process of inspecting quality of the printed image based on a captured image obtained in the process a), wherein
a color of the background plate is a color different from any of the plurality of process colors and the non-process color.