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Offset Printing

A form of printing technology using an intermediate carrier to transfer image from original carrier (such as a plate) to the substrate.

Offset Lithography
In this process the image + non image area coexist on same plane. Types of lithograpgu  - di-litho and waterless lithography. Types of offset lithography - sheetfed and web-offset lithography.

Offset printing is widely used in modern printing presses. It is described as when 'positive image' on plate is inked and transferred (offset) from plate to a rubber blanket. Blanket captures mirror image of plate. 

The blanket moves the image to substrate making the image. In Offset printing, it is based on fact that oil and water do not mix. The offset process employs a planographic plate mounted over press cylinder. 

Offset presses makes use of 3 cylinders: Plate, blanket and impression cylinder.

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