The advantages of the surface of the calendar printing plate are that there are basically no metal products that have both high oleophilicity and good hydrophilicity. Although any metal product has only any wetting properties, according to the adsorption law, it can also undergo changes. This can lead to changes, and theoretically, it can also locally produce changes, which can enhance its lipophilicity and hydrophilicity.

The fact shows that the wetting properties of zinc and aluminum are relatively impartial, with some lipophilicity and some hydrophilicity, which is conducive to making corresponding changes according to demand. It is precisely because of the regulations on chemical functions that zinc and aluminum are commonly used as plate materials nowadays. To achieve the goal of generating change, a series of physical and chemical processing must be carried out on the layout.

This is also the main reason for the emergence and growth of offset printing. Everyone is aware that offset printing originated from lithography, and during the lithography process, this pattern of change has been controlled by users. Even in today's highly diversified offset printing, this pattern still has practical significance, albeit with more effective and comprehensive methods.