To provide a removing plate used for a reversing printing method having a pixel pattern area and a peripheral pattern area with different sizes and a pattern forming method.

The removing plate is used for the pattern forming method in which a colored coated film comprising colored inks is formed on a blanket roller and two or more of patterns comprising the colored coated film with different sizes are formed on the blanket roller using the removing plate on which a pattern reverse relative to the above pattern is formed, a peripheral pattern is arranged through a pixel pattern area and an opening area formed around the pixel pattern area, and the opening area has a opening depth larger than the opening width, thereby the above problem is solved.