The Process Of Offset Printing
Posted by | Posted in Marketing and Advertising | Posted on 21-01-2010
Most companies need a printing service on a regular basis, whether it is for promotional purposes or intra-company communication. Hence, it is good to have some basic knowledge of how printing works, especially offset printing, which is one of the most widely used printing techniques.
The users and the printers like offset printing due to its cost effectiveness for printing of large number of prints. The clients giving big printing orders are advised by the printers to choose offset printing because of this reason.
The ink employed during offset printing has oil as the medium and is insoluble in water. Its name comes from the fact that in this process, images are not transferred directly from the plates to the paper but this is done through rubber blankets as a medium.
First step is to prepare the images. Earlier the images were prepared by creating film negatives and were then transmitted to aluminum printing plates. This is no longer required as the technology is available for making the plates in one go through an image setting system. After this, the plate is stuck to a cylinder with the proper side facing upwards. Next, the water is dispersed on the image plates, which is followed by the ink. The image receives the ink while the rest of the area gets a thin coating of water, which makes sure that the ink does not spread beyond the images.
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 looking up by cutting sheets of papers into appropriate size and placing them on a third cylinder.
The work 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 needs of the client.
Find out more about a printing companythat offers the best printing services.
categories: printing company,name card printing,business,advertising,marketing,brochures,flyers,printing,Visual Graphic Arts
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