Basic Information You Should Know About Offset Printing
Many significant functions in a business such as maintaining flow of information within the company and marketing the products of the company need printing service. Therefore, it is good to have some fundamental knowledge of how printing works, particularly offset printing, which is one of the most widely used printing technologies.
Offset printing is so popular among printing service providers and clients because for large volumes, it is more economical than other options. The customers giving bulk printing orders are recommended by the printers to choose offset printing because of this reason.
This printing technology uses oil-based ink, which is not soluble in water. Its so called because in this process, images are not transported directly from the plates to the paper but this is done using rubber blankets as a medium.
The first step is preparing the images. When offset printing began, the images had to be made by the use of film negatives and they were later transferred to aluminum plates. But, a modern printing company would now prepare the plates directly by making use of an image setting system. The next step is to attach the plate on to a cylinder such that it is spot on. Water and ink, in that order, is spread on the image plates. The ink is spread over the image and to prevent it from overflowing, a thin layer of water is spread over the remaining part of the plate.
The image is then transferred from the plates to the rubber blanket rolled on another cylinder, so that it is reversed. The image is inverted to its right side by transferring the image to sheets that have been cut in line with the requirement and are put on a different cylinder.
The job of printing is completed by the printing company by consolidating the printed sheets using staples or glue or in any other way as per the requirements of the client.
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