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| GLOSSARY OF PRINTING TERMS | |
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Accordion Fold A term used in binding to refer to a printed piece that has two or more parallel folds and opens like an accordion. Bind Fasten two or more sheets of paper together, typically using staples, glue, wire / thread or some other means. Bindery The department of a printing company that finishes printed products by trimming, binding, stamping, numbering, padding and performing other steps that need to be done after a product is printed, in order to make the product ready for delivery. Bleed / Full Bleed Refers to printing that goes to the very edge of a printed sheet after trimming. The text, image and graphics on the paper run off, or "bleed off", the edge of the paper. Blind Embossing A technique in which an image is pressed into a sheet without the use of ink or foil. Blueline A blue photographic proof of a printed product. The blueline is used to check the position of all elements of the print job. Bond Paper A durable and strong paper grade typically used for letterheads and business forms. Camera Ready Artwork which is ready to processed for printing. Coated Paper Paper with a clay coating that produces a smooth finish. There are typically two varieties: gloss and matte. Collate / Collating To act of gathering up papers in a precise order typically the step immediately before binding. Colour Bar A bar of various colours on the end of a press sheet used for quality control. Colour Key Layers of acetate which, when laid one on top of the other, produce a colour proof of a printing project. Colour Separation The process of preparing a print project by separating it into its printing colours. For full-colour work, this would consist of four separations, one for each of the four primary printing colours (cyan, magenta, yellow and black). Comb Bind A binding method which uses a plastic comb which is inserted in holes along the side of the printed piece in order to hold the sheets together. Also called Cerlox binding. Crop To cut off unwanted portions of a picture or image. Crop Marks Small printed lines which indicate where a printed piece is to be trimmed. Cyan A blue colour which, together with black, yellow and magenta, form the four standard process colours used in full-colour printing. Die Cutting Cutting an image into or out of paper. Duotone A halftone picture which is constructed from two printed colours. Embossing The process of pressing an image into paper. The result is a raised relief. Foil Embossing A combination of foil stamping and embossing. Foil Stamping Using a die to make a metallic image on paper. 4-Colour Process The process of combining four basic colours to create a printed colour picture, or other colours that can be created from the four basic colours (cyan, magenta, yellow and black). French Fold two folds at right angles to each other. Gloss A shiny, reflective coated paper. Halftone Converting a continuous tone image, such as a photograph, to lines of dots of various sizes for printing. Hard Copy Computer printer output, or typed text that is used for typesetting. Hickey Unplanned spots or specs which appear on a printed image, usually caused by dust, lint or dried ink. Image Area The portion of the printed page on which ink can appear. Imposition Positioning pages for printing so that when the printed piece is folded, the pages appear in the proper order. Imprinting Adding printed copy to a previously printed page. Laid Finish A paper finish which simulates the surface of handmade paper. Laminate Cover with a clear film. Line Per Inch Number of rows of dots per inch in a halftone. |
Magenta A purple-red colour which comprises one of the basic colours in process colour. Make Ready All the activites required to prepare a press for printing. Matte Finish A non-shiny coating on paper. Offsetting Using an intermediate surface to transfer ink to paper; the basis of offset printing. Offset Paper Uncoated book paper. Overrun Copies printed in excess of the specified quantity. Perfect Bind A glued binding in which the edges of the sheets are glued to the cover. Paperback books and a number of magazines are bound in this way. Pica A unit of measure equal to 1/6 of an inch; used in typesetting. PMS Colour Acronym for "Pantone Matching System" colour. Point In typesetting, a point is a unit of measure equaling 1/72 of an inch. There are 12 points to a pica. A point is also a unit of measurement indicating a paper's thickness. One point is equal to 1/1000 of an inch. Process Blue The blue or cyan colour used in process colour printing. Process Colours The four process colours are cyan (blue), magenta (process red), yellow and black. Ragged Left Type that is justified / lined up on the right side / margin, with the lengths of the lines varying on the left side. Ragged Right Type that is justified / lined up on the left side / margin, with the lengths of the lines varying on the right side. Register To position type, graphics and images in the proper position on a page in relation to other printing on the same sheet. Register Marks Guides used by printing staff (strippers, platemakers, press personnel and bindery personnel) in processing a print job. The register marks consist of cross-hair lines on film, plates and paper. Saddle Stitch A binding method in which sheets are stapled together in the seam where the sheets are folded. Score A crease put into a sheet of paper to aid in folding. Self-cover Using the same paper for the cover of a printing item as is used for the inside pages of the item. For example, a book that is 24 pages self-cover consists of a cover (4 pages) and 20 inside pages, all printed on the same type of paper. Side Stitch A binding method in which sheets of paper are stapled along on side of the sheets. Signature A sheet of printed pages which, when folded and trimmed, become part of a book or other printed document. Spot Varnish Application of varnish to specific parts of a printed sheet in order to highlight those specific parts. The varnish typically produces a shinier surface to those spots to which it is applied, creating a contrast between it and the other parts of the page. Stamping See foil stamping. Stock Material to be printed. Trapping A technique which compensates for variation in registration during a press run by allowing an overlap between colours which touch each other. Trim Marks Marks on a printed sheet which indicate where to cut / trim the printed sheet. Trim Size The final size of a printed sheet after all trimming has been completed. UV Coating A liquid laminate bonded to a sheet and cured with UV light. Varnish A clear liquid applied to printed sheets, often as a design element or to protect the page (ie. helps prevent ink from smudging). Web Press A printing press that prints on rolls of paper passed through the press in one continuous piece, as opposed to individual sheets of paper. Wire-O Binding A wire binding technique for books which uses double wire loops. The advantage of this type of binding is that, when opened, the book lies flat. Work and Tumble Printing one side of a sheet and turning it over from the gripper end to the tail end to print the reverse side using the same plate for the reverse side. Work and Turn Printing one side of a sheet and turning it over from left to right to print the reverse side using the same plate for the reverse side. |
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