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Is Litho Printing?
If you work or want to work in the design and print industry there are a few basics that you need to know. One of them is Lithography.
The name lithography (comes from the Greek words lithos, 'stone' + graph?, 'to write') and is a method of printing that is very common in this industry.
Lithography is best described as a planographic process. This just means printing from a smooth surface, called a plate, to a substrate, generally paper.
Lithography is also known as Litho printing can also be called Offset or Offset Lithography, lithographic printing, planography or planographic printing.
For this printing process, a flat stone is treated in a manner so that the image areas attract the oil-based inks and the non-image wet areas repel the oil-based inks. When the stone is pressed against the surface to be printed on, the oily inked image areas leave an imprint of the desired design.
The reason that litho printing works is on the key principle that oil and water do not mix. With relief printing and intaglio the image and non-image areas are at different levels, however, in lithography the areas are all on the same level. The printing surface is flat.
With commercial printing, litho printing has progressed
and stones have been replaced by sheets of aluminum, plastic, or zinc.
The principle of the printing process remains the same but has been
upgraded with the latest technology.