- Specialized printing technique using coloured inks and modified presses.Juxtaposition of colours is achieved by submitting each sheet to successive impressions by typeforms each of which prints only on areas designed to carry a single colour and inked only in that colour. Three colours of ink can reconstitute the visual effect of all the range of colours by combining them appropriately; if all three inks are applied to an area, it almost appears black. Standard colour printing, called four-colour printing, employs magenta, yellow, cyan (blue), and black inks.
* * *▪ printingprocess whereby illustrative material is reproduced in colour on the printed page. The four-colour process is used to produce a complete range of colours. In this process, the material to be reproduced is separated into three basic colours plus black, which is used for density and image contrast. The basic colours are cyan, a combination of blue and green; magenta, a combination of red and blue; and yellow, a combination of red and green. Many ink makers and printers call cyan “process blue,” magenta “process red,” and yellow “process yellow.”After colour separation in the photoengraving or offset-platemaking process, a separate printing plate is made for each of the four colours. When printed in the proper colour (using transparent ink so that overlapping colours appear to blend) and properly registered (exactly positioned with relation to each other), these four plates can accurately reproduce the colours and shadings of original material. In most printmaking processes, illustrations for colour printing must first be subjected to the halftone process (q.v.) in order to render tonal gradations; this may be done either in the same step as the colour separation or separately. Some printing processes—such as conventional gravure (gravure printing) and collotype—can print varying densities of ink without use of halftones.Four-colour printing on a two-colour flatbed press requires that a sheet be passed through the press twice. A sheet-fed rotary press and a web-fed rotary press, the latter of which is fed a continuous length of paper unwinding from a roll, can print four colours in a single pass of the paper, depending on design.
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four-colour printing — /fɔ kʌlə ˈprɪntɪŋ/ (say faw kuluh printing) noun colour printing using the three subtractive primary colours (cyan, magenta, and yellow) and black in various combinations. Also, four color printing … Australian English dictionary
colour correction — noun In colour printing, compensation either by hand, by colour masking, or electronically, for inherent faults of the printing inks available • • • Main Entry: ↑colour … Useful english dictionary
printing — /prin ting/, n. 1. the art, process, or business of producing books, newspapers, etc., by impression from movable types, plates, etc. 2. the act of a person or thing that prints. 3. words, symbols, etc., in printed form. 4. printed material. 5.… … Universalium
printing press — a machine, as a cylinder press or rotary press, for printing on paper or the like from type, plates, etc. [1580 90] * * * ▪ printing machine by which images are transferred to paper by means of ink. Although movable type, as well as… … Universalium
colour — /kul euhr/, n., adj. v.t., v.i. Chiefly Brit. color. Usage. See or1. * * * I Aspect of any object that may be described in terms of hue, brightness, and saturation. It is associated with the visible wavelengths of electromagnetic radiation, which … Universalium
Printing — is a process for reproducing text and image, typically with ink on paper using a printing press. It is often carried out as a large scale industrial process, and is an essential part of publishing and transaction printing.HistoryWoodblock… … Wikipedia
printing — print‧ing [ˈprɪntɪŋ] noun COMMERCE 1. [uncountable] the work of producing books, newspapers etc on a machine that puts words, numbers, pictures etc onto the surface of paper: • Thomson is a printing and publishing concern. • The firm has access… … Financial and business terms
Printing — Broadly there are six styles of fabric printing, viz.: Direct Printing That in which the design is printed direct on the cloth and the colour afterwards fixed by steaming. Dyed Styles The fabric is first printed with a mordant and afterwards dyed … Dictionary of the English textile terms
Colour — Signifies the sensation which, when called forth by light and transmitted by the agency of the eye through the optic nerve to the brain, is produced by the operation of these organs. It is a term that is applied to dyestuffs, printing pastes,… … Dictionary of the English textile terms
Colour fastness — is a term used in dyeing of textile materials means resistance of colour to fading. Light fastness, wash fastness, and rub fastness are the main ones that standardized. The light fastness of textile dye is catagorized from one to eight and the… … Wikipedia