Basic Information You Should Know About Offset Printing
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Written by Milagros Tan on February 9, 2010 – 2:36 am
Printing service is used by most organizations for different purposes such as marketing and corporate communications. Hence, it is important to have some fundamental knowledge of how printing works, particularly offset printing, which is one of the most widely employed printing technologies.
Offset printing is so popular among printing service providers and clients because for large quantities, it is more economical than other options. This is the reason good printing service suppliers recommend the use of offset printing for bulk prints.
The ink used during offset printing has oil as the medium and is insoluble in water. The offset printing is so called because the designs are transferred in an indirect way from the plates to the paper by use of rubber blankets as the agents.
The process starts by developing the designs. When offset printing began, the images had to be made by the use of film negatives and they were later put on aluminum plates. But, a modern printing company would now develop the plates directly by using an image setting system. The next step is to transfer the plate on to a cylinder such that it is spot on. Then the water and ink are dispersed on the image plates, one after another. While the ink gets stuck to the image, the water gets attached to that part of the plate which has no image so that the ink does not spill beyond the image.
Next, the image is turned around when it is put on to a rubber blanket which is stuck to another cylinder. The image is then printed with its right side facing up by cutting sheets of papers into correct size and putting them on a third cylinder.
The final steps of the printing job involve things such as stapling, pasting or organizing the printed sheets according to the instructions of the client, and any printing company should easily manage these.
Learn more about a printing companythat offers the best printing services.
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