The Process Of Offset Printing

Most companies require a printing service on a regular basis, whether it is for marketing purposes or for internal communication. Hence, it is good to have some basic knowledge of how printing works, particularly offset printing, which is one of the most widely employed printing techniques.

Offset printing is so well known among printing service providers and clients because for large volumes, it is more economical than other options. This is the reason good printing service providers suggest the use of offset printing for large volume of prints.

This printing technology uses oil-based ink, which is not soluble in water. The offset printing gets its name from the fact that the designs are transferred in an indirect way from the plates to the paper by use of rubber blankets as the medium.

The process starts by preparing the designs. When offset printing began, the images had to be developed 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 making use of an image setting system. The subsequent step is to transfer the plate on to a cylinder such that it is spot on. Then the water and ink are spread on the image plates, one after another. The image receives the ink while the rest of the area gets a thin cover of water, which makes sure that the ink does not spread beyond the images.

After painting it with ink, the image is kept on a rubber blanket which is on a different cylinder, resulting in the image to be inversed. The image is now printed with its right side facing up by cutting sheets of papers into appropriate size and putting them on a third cylinder.

Printed sheets are stapled, glued, or arranged in any other way as required and the printing company delivers them after giving some finishing touches.

Learn more about a printing companythat offers the best printing services.

February 9, 2010 in Business
Tagged , , , , , , , ,