Glossary of print, P. Perfect binding, perforating, perfecting press, press check and printing plates

Print, paper and printing technology terms and definitions beginning with the letter P.

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Perfect binding

Perfect binding is the process of binding sheets of a document by roughing the edges at the spine and bonding them with glue to an external cover.

Paperback books and thick documents, such as brochures and laarger news-stand magazines are generally perfect bound.Thinner publications, such as trade magazines and journals, are generally saddle stitched.

Perforating

Creating a line of punched dots on a printed sheet so that a part of a sheet can be detached by a user at a later date.

Perfecting press

A printing press that is capable of printing both sides of the sheet in a single pass through its rollers.

Plate

A printing plate is the metal (or sometimes plastic or even paper in short run printing) sheet that carries the image being printed on a printing press.

Press check

A press check is when a client, designer, or production manager, visits the printing press and checks the printed sheets as they come off the machine. Usually, these sheets are signed off by the client and used as proofs to color match the rest of the printed job

Progressive proofs

Progressive proofs are made up of different combinations of all the printing colors of a document. They are generally produced from a proofing press, or on the printing press itself. The colors are progressively applied to show the result of the addition of each separated ink.