Offset Lithography is a printing technique that places ink and water on a chemically treated printing plate. The ink is attracted to the image area and the water is attracted to the non-image area. The inked image is then transferred to a rubber blanket and finally to the paper.
Sheetfed offset presses print on paper that has been cut into individual sheets prior to printing. Web offset presses print from rolls of paper, and any cutting is done after the printing.
This process is frequently used to print publications, catalogs, newspaper supplements, labels, boxes, direct mail pieces, and for other commercial applications.
Sites placed in this category should deal primarily with this printing process. This includes sites of trade associations, companies selling equipment and supplies, and any site providing resources about the process. In contrast, the sites of printing companies that use this process are not listed here; instead, each printing company is listed in a category based on the type of product it produces.
Sheetfed offset presses print on paper that has been cut into individual sheets prior to printing. Web offset presses print from rolls of paper, and any cutting is done after the printing.
This process is frequently used to print publications, catalogs, newspaper supplements, labels, boxes, direct mail pieces, and for other commercial applications.
Sites placed in this category should deal primarily with this printing process. This includes sites of trade associations, companies selling equipment and supplies, and any site providing resources about the process. In contrast, the sites of printing companies that use this process are not listed here; instead, each printing company is listed in a category based on the type of product it produces.
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- How Offset Printing Works A detailed step-by-step explanation of the process, including photos and text.
- Offset Lithographic Printing Detailed information about the process and its most common uses. Provided by the Printers' National Environmental Assistance Center.
- Waterless Printing Association International trade association for the offset lithographic printing process known as waterless printing. Includes information about the process.