|Offset Printing Press|
|Offset printing plate loading onto press.|
The ink then travels to what is called a blanket - a thin rubber layer over a steel cylinder. As the blanket cylinder turns, it comes in contact with the paper. At this point, the paper is squeezed between the blanket cylinder and another steel roller or another blanket cylinder.
|Offset printing press ink fountain.|
1. Paper is feed from a flying paster, or rollstand.
2. The paper then travels through the printing units where the offset printing process takes place.
3. The printed web of paper then goes through a heatset oven which evaporates the oils from the ink and then cools it afterwards.
4. The product then goes through a folder to make the correct page count for the product. Finally, an inline finishing system will trim and stack the final product.
There are also other forms of offset printing:
While the initial costs for such an operation are high, the offset printing principle behind it, as you can see, is very simple. Additionally, the cost to produce products with offset printing is quite low in comparison with others.