Offset Printing

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Offset Printing
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The offset lithographic process was first used in England around 1875.

How offset printing works
In offset printing the image to be printed is first transferred (“offset”) from a drum to a rubber mat. After that the image is transferred to the printing medium, most often paper. Sometimes offset printing is used in partnership with the lithographic processes. This process is based on the repulsion of water and oil and helps keep water off the finished printing medium.

The benefits of offset printing include:
The ability to use a wide variety of printing medium. In addition to paper offset printers can transfer images to metal, wood, cloth, leather, etc. The use of the rubber mat that conforms to the printing medium gives you a high quality image time after time. Fast and simple fabrication of printing plates. Enhanced plate longevity due to the fact that the plates do not come into contact with the printing medium.

The offset lithographic process was first used in England around 1875. At first it was used to print on metal, with the offset cylinder covered in a specially treated cardboard. The switch from cardboard to rubber only took about five years, and rubber remains the most common material used for the offset cylinder.


 

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