Sign & Digital Graphics

2013 Buyer's Guide

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pattern, creating the effect of a more-natural color look to an image; a direct result of stochastic screening. Crawltext—In electronic digital signage , the segment of text that moves through a text crawl element box. Contour Cut—With vinyl cutters and print-and-cut digital printing devices, the ability to cut around the outlines of an image, both on the outer border and along any internal closed-loop borders. Craze—Thin cracks or breaks in paint, plastic or vinyl, caused mainly by weathering, though it may also be caused by the incompatibility of paint layers or solvents. Crosslink—In UV-curing, a term describing the chemical process by which the liquid ink is converted to a less-fluid, firmer, solid after exposure to a source of ultra-violate light. Cross Bar—A horizontal arm that is attached to a sign. The cross bar typically runs perpendicular to the sign's face and parallel to the building's facade. It is used with guy wires to help stabilize building-mounted signs. Decal—Copy and/or graphics printed on a PSA vinyl, then cut to a specified shape. Contrast—In graphic design, the use of dissimilar or opposing elements, such as light and dark areas. Also, a term describing the difference between elements within an image in terms of their relative lightness and dark. Crossover—The connection between two portions of a neon tube, intended to be unnoticed in the finished sign. Typically, crossovers are coated with blockout paint. Definition—The amount of contrast between a sign's art and background. Control Frame—In electronic digital signage, the frame of the network manager window, from which you choose which network manager screen to work in. Curing—The process of effecting a chemical change in some inks or paints by the application of heat or ultraviolet light. Control Point—A connection between two line/arc segments or a selectable handle on a bounding box. Moving a control point changes the shape of an object, altering a line path, shape or size. Current—The flux or rate of flow of electrical charge carriers in a conductor. A unit of current is typically given in amperes or milliamps (mA). Control Console—In electronic signage, the device that receives information entered on a keyboard by the operator and transfers that information to the sign's message controller. Coordinate—A point that can be referenced by its position on the X, Y, or Z axes. The use of line or arc segments to connect coordinates creates paths for knives or bits to follow when cutting or routing an image. Corona Treatment—Process that alters static charge of sheeting, especially corrugated plastic, for greater adherence of media such as ink for decoration. Corrugated Board—A board created by gluing a corrugated piece to a flat face, or between two flat faces. Counter—In a given typeface, any completely or partially enclosed area of a letter. Cove Lighting—A type of indirect decorative illumination created by placing a lighting source inside a trough or cove to produce a halo effect. Coverage—The area (usually given in square feet) that a given material will coat-out. Cut-Outs—Lettering or graphics that are cut from another material, then attached to the sign face to provide depth. Cyclohexanone—A petro-chemical solvent solution. In inkjet printing, it is commonly used as the main carrier in solvent inks. Cyclohexanone is rated by the EPA as a hazardous material containing high levels of harmful VOCs. Mild-solvent (or light solvent) inks contain lower levels of the substance, but still contain VOCs. Fumes from cyclohexanone are managed through proper ventilation or air-scrubbing systems. D Dark Hardening—The continuation of the crosslinking process in UV-curing inks even after exposure to an ultraviolet energy source has ceased. Also called dark cure, or post cure hardening. A feature of cationic UV-curing inks. Database—The collection of data on accounts, media players, jobs, etc., that collectively define an information network installation and its settings. Datacasting— Broadcast of digital information over  networks to receivers and media  players. Datacasting is sometimes used as an alternative to traditional video broadcasting, because the receivers and player units can have the "intelligence" to customize their playback programming for the location and intended audience. The system of receivers set up to receive messages from a particular datacast are known as datacasting networks, which are a venue for advertisers. Deboss—The process of producing depressed letters, particularly those produced by engraving dies or plates. Decompress—The process of expanding a compressed file to its original uncompressed form.. Delamination—The separation of layers in a laminated substrate. Delamination is most often caused when edges are over-exposed to moisture, temperature extremes or UV light, resulting in adhesive failure. Delta-E (∆E)—The measurement unit, in a uniform  color space, of the perceivable differences in color viewable by the human eye. The first noticeable change is 1 ∆E. Delta-E measurement is used, for example, by customers specifying and accepting color, and in manufacturer guarantees of colorfastness. Densitometer—Device that measures the absorption of light in a color, based more on how it reacts to the printed piece than the response of the human eye. Used to check color proofs and coordinate colors between output devices and displays, but measurements remain specific to materials and inks/toners. Density—In sign making, a measurement used to express the hardness of foam boards in poundsper-cubic-foot. Descender—In a given typeface, the portions of the lowercase letters g,j,p,q,y and sometimes the uppercase letter J that extend below the baseline. Device-Independent Color—A color-matching system that relies on a universal set of values, rather than utilizing the color gamut of a given piece of equipment. Design Menu—In  electronic digital signage, a menu providing access to all the text or graphics utilities that can be used when composing a page for digital content. S I G N & D I G I TA L G R A P H I C S • SBGuide.indd 105 Mid-June 2013 • 105 5/31/13 12:35 PM

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