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Most companies require a printing service on a regular basis, whether it is for promotional purposes or intra-company communication. 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.
The clients and the printers like offset printing because of its cost effectiveness for printing of large number of prints. The customers giving bulk printing orders are recommended by the printers to choose offset printing because of this reason.
The ink used during offset printing has oil as the medium and does not dissolve in water. Its so called because in this method, images are not transferred directly from the plates to the paper but this is done using rubber blankets as a medium.
The first step is developing the images. Film negatives were used in the earlier times for making images and then copying them to aluminum based printing plates. However, a modern printing company would now prepare the plates directly by using an image setting system. This plate is then put on a cylinder in the proper configuration. Water and ink, in that order, is spread on the image plates. The ink is poured over the image and to stop it from overflowing, a thin layer of water is put 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 reversed to its correct side by transferring the image to sheets which have been cut according to the need and are placed on a different cylinder.
Printed sheets are stapled, glued, or assembled in any other way as required and the printing company delivers them after giving some finishing touches.
The clients and the printers like offset printing because of its cost effectiveness for printing of large number of prints. The customers giving bulk printing orders are recommended by the printers to choose offset printing because of this reason.
The ink used during offset printing has oil as the medium and does not dissolve in water. Its so called because in this method, images are not transferred directly from the plates to the paper but this is done using rubber blankets as a medium.
The first step is developing the images. Film negatives were used in the earlier times for making images and then copying them to aluminum based printing plates. However, a modern printing company would now prepare the plates directly by using an image setting system. This plate is then put on a cylinder in the proper configuration. Water and ink, in that order, is spread on the image plates. The ink is poured over the image and to stop it from overflowing, a thin layer of water is put 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 reversed to its correct side by transferring the image to sheets which have been cut according to the need and are placed on a different cylinder.
Printed sheets are stapled, glued, or assembled in any other way as required and the printing company delivers them after giving some finishing touches.
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