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t. e. Offset printing is a common printing technique in which the inked image is transferred (or "offset") from a plate to a rubber blanket and then to the printing surface. When used in combination with the lithographic process, which is based on the repulsion of oil and water, the offset technique employs a flat (planographic) image carrier.
In printing, trap expresses the degree to which ink already printed on a substrate accepts another layer printed on top of it compared to how well the substrate (e.g., paper) accepts that ink. However, in the era of prepress software, the term came to refer to compensation for misregistration (when two layers of ink are not perfectly aligned ...
The term camera-ready was first used in the photo offset printing process, where the final layout of a document was attached to a "mechanical" or "paste up". Then, a stat camera was used to photograph the mechanical, and the final offset printing plates were created from the camera's negative. In this system, a final paste-up that needed no ...
e. Lithography (from Ancient Greek λίθος (líthos) 'stone' and γράφω (gráphō) 'to write') [1] is a planographic method of printing originally based on the immiscibility of oil and water. [2] The printing is from a stone (lithographic limestone) or a metal plate with a smooth surface. It was invented in 1796 by the German author and ...
The problem can occur with most types of printing, and is avoided by the use of slipsheets between copies (so any ink transfer occurs onto discardable paper) or anti-set-off spray powder. The term in offset printing also refers to the unwanted transfer of ink to rollers and friction points throughout the printing press. Ink that is not properly ...
Paste up. Paste up is a method of creating or laying out publication pages that predates the use of the now-standard computerized page design desktop publishing programs. [1] Completed, or camera-ready, pages are known as mechanicals or mechanical art. In the offset lithography process, the mechanicals would be photographed with a stat camera ...
Stripping (printing) Within the commercial printing industry, the job of stripping involves arranging and joining film negatives as part of the process of preparing printing plates. [1] In the UK, the same operation is termed "planning" and film positives are used, rather than the negatives in the USA. Because the industry has largely moved to ...
t. e. Chromolithography is a method for making multi-colour prints. This type of colour printing stemmed from the process of lithography, [1] and includes all types of lithography that are printed in colour. [citation needed] When chromolithography is used to reproduce photographs, the term photochrome is frequently used.