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Most companies require a printing service on a regular basis, whether it is for promotional purposes or intra-company communication. Offset printing is the most commonly used printing technology and learning about it is therefore helpful and important.

Offset printing is so popular among printing service companies and clients because for large volumes, it turns out to be cheaper than alternative methods. Therefore good printing service providers recommend the use of offset printing for large volume of prints.

Offset printing uses oil based ink, which does not blend with water. In offset printing, rubber blankets play a transitional role in copying the image on the paper, which is to begin with on the plate.

The first step is developing the images. Previously the images were prepared by creating film negatives and were then transmitted to printing plates made of aluminum. In the present times, the printers can use the image setting system for making the plates directly. The next step is to attach the plate on to a cylinder such that it is spot on. Then the water and ink are dispersed on the image plates, in that order. The ink is spread over the image and to restrict it from overflowing, a thin layer of water is put over the remaining part of the plate.

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 reversed. The image is then printed with its correct side facing up by cutting sheets of papers into correct size and placing them on a third cylinder.

Printed sheets are stapled, pasted, or arranged in any other manner as needed and the printing company delivers them after giving some finishing touches.

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