litho printing is also known as lithography or printing or lithographic printing plate or flat printing. litho printing works on the basic principle that oil and water do not mix. Unlike surface printing, intaglio and where image and non-image areas are at different levels, lithography is only one surface.
Intaglio and relief printing areas of the image to be printed are raised and areas of non-images form the base surface, which is lower areas of the image. However, lithography image areas and non-image areas are all on the same plane. The printing surface is flat.
In lithography a flat stone is treated in a manner so that the image areas attract ink oil-based and non-wetland picture repel oil based inks. When the stone is pressed against the printing surface, the oily areas inked image to leave an imprint of the desired design.
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