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Page: One side of a leaf.
Page Makeup: The assemblage of all the necessary elements required to complete a page.
Page Proofs: Proofs made up from pages.
Pagination: In computerized typesetting, the process of performing page makeup automatically.
Panchromatic: Films or other photographic materials that are sensitive to all colors.
Paperboard: Any paper with a thickness (caliper) of 12 points (.3mm) or more.
Papeterie: A high-grade soft paper used for personal stationery because it accepts handwriting well.
Parchment: A hard finished paper that emulates animal skin; used for documents, such as awards, that require writing by hand.
Parent Sheet: A sheet that is larger than the cut stock of the same paper.
Paste-up: Preparation of positive materials into a layout for photographing to film negatives.
Perf Marks: Markings,usually dotted lines, edges showing where perforations should occur.
Perfect: A term used to describe the binding process where the signatures of a book are held together by a flexible adhesive.
Perfect Binding: Binding process where backs of sections are cut off, roughened and glued together, and rung in a cover.
Perfecting: Printing both sides of the paper (or other material) on the same pass through the printing machine.
Perfecting Press: A printing press that prints on both sides of the page in a single pass.
Perforating: Punching small holes or slits in a sheet of paper or cardboard to facilitate tearing along a desired line.
Photoengraving: Making printing plates by exposure of line and halftone negatives on sensitized metal, converting the image into an acid resist, and etching the print to the relief required for letterpress printing.
Photomechanical: The platemaking process where plates are coated with photosensitive coatings and exposed to photo negatives or positives.
Photostat: A photographic print creating an image using photography and electrostatic processes; also called a stat.
Pica: Standard of measurement, 1/6 inch. 1 pica = 12 points 72 points = 1 inch
Picking: An occurrence in printing whereby the tack of ink pulls fibers or coating off the paper surface, leaving spots on the printed surface.
Piling: A build up of pigment or paper coatings onto the plate, blankets or rollers.
Pin Register: Using metal pins fitted into preset holes of copy sheets, films, plates and presses that will assure the proper registration.
Pinholing: Failure of printed ink to form a completely continuous film, visible in the form of small holes in the printed areas.
Pixel: In electronic imaging, a basic unit of digital imaging.
Plastic Comb: A method of binding books whereby holes are drilled on the side closest the spine, and a plastic grasping device is inserted to hold the pages together.
Plate: Reproduction of type or cuts in metal plastic, rubber, or other material, to form a plate bearing a relief, planographic or intaglio printing surface.
Plate Cylinder: The cylinder on a printing press on which the plate is mounted.
Plate Finish: Any bond, cover or bristol stock with an extremely smooth finish achieved by calendaring.
Platemaking: Making a printing plate from a film or flat including preparation of the plate surface, sensitizing, exposing through the flat, developing or processing, and finishing.
Platesetter: Imagesetter for making plates.
Point: A measurement unit equal to 1/72 of an inch. There are 12 points to a pica, 72 points to an inch.
Poor Trapping: In printing, the condition in wet printing in letterpress and lithography when less ink transfers to previously printed ink than to unprinted paper. Also called undertrapping.
Positive: Film that contains an image with the same tonal values as the original; opposite of a negative.
Porosity: The property of paper that allows the permeation of air, an important factor in ink penetration.
PostScript: A computer description language that allows a programmer to create complex pages using a series of commands.
Ppi: Pixels Per Inch.
Presensitized Plate: A plate that has been treated with light sensitive coatings by the manufacturer.
Press-Proof: Actual press sheet to show image, tone values and colors as well as imposition of frame or press-plate.
Primary Colors: In printing the four primary colors are cyan (blue), magenta (red), yellow and black.
PrintFLEX: A web-based portal created to facilitate the placement and management of printing and mailing projects online, in real-time.
Printability: The quality of papers to show reproduced printed images.
Printer's Spread: Two consecutive pages as they appear on a flat or signature.
Process Inks: Printing inks, usually in sets of four colors. The most frequent combination is yellow, magenta, cyan, and black, which are printed, one over another in that order, to obtain a colored print with the desired hues, whites, blacks, and grays.
Process Lens: A high quality specialty lens made for line art, halftone and color photography.
Process Printing: Printing from two or more half tones to produce intermediate colors and shades.
Progressive Proofs: Any proofs made from the separate plates in color process work, showing the sequence of printing and the result after each additional color has been applied.
Proof: Any trial impression produced for the purpose of checking the accuracy of layout, type matter, tone and color reproduction. |
