| Offset Printing Looking for an Offset Printer? Offset printing refers to the Offset Lithographic process. There are two parts to this process. The Lithographic or chemical process and the physical process of offsetting the image from plate to blanket and blanket to paper. By blanket we mean a rubber coated cotton carcass which 'straps' around a cylinder. The rubber allows for good transfer from the hard aluminium printing plate. It also provides good transfer to paper. The Lithographic process is based on the fact that oil and water repell each other. The printing plates that we use in Lithography have an 'image area' and a 'non-image area'. The image area is oleophyllic or 'oil loving' which is what ink basically is. The non-image area is hydrophyllic and is 'water loving'. We apply water using rollers to the 'plate cylinder' at high speed and then apply ink and when the ink/water balance is in good equillibrium we get ink in only the image area and water in only the non-image area. This produces a quality print. But if there is too much water, we get water in the image area and if we don't have enough water we get ink in the non-image area. Neither are desirable results. So that's a basic primer on Offset Lithography! Boring huh? Yeah. Now if you're looking for a quality offset printer, then look no further, cause you've just found a great quality on budget printer who ships Australia wide and has many exstatic customers! You could be our next : ) Contact us for your print requirements! |
