Glossary of terms used on this site
There are 619 entries in this glossary.R
| Term | Definition |
|---|---|
| Rag |
Fiber from cotton material
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| Rag paper |
Paper with a rag content of at least 10 percent primarily used for banknotes and documents.
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| RAL colors |
Standard colors based on a series of color collections for industry published by the Deutsches Institut für Gütesicherung und Kennzeichnung, Sankt Augustin. There are over 2,000 RAL colors, and the RAL Design System, a color system which takes in the entire color space, contains 1688 color tones. All RAL colors in the RAL Design System and the RAL 840-HR classical color collection are also defined digitally. They can be used with all standard graphic arts programs and can be used with more than 20 output variants, that is with different screens and printers.
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| RAM (random access memory) |
The memory a computer utilizes when in operation and that is lost when the machine is switched off.
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| RAMDAC (random access memory digital-to- |
A direct access storage or memory used to convert digitally encoded data into analog signals performed by specific chips.
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| Rasterizer |
A software program that converts font data for output as raster graphics, that is, into bitmaps. This step must be performed before characters can be displayed on the monitor or printed as a hardcopy. Unlike vector graphics, a raster graphic consists of pixels arranged in a fixed grid.
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| Raw text |
Raw text is a type of text design in which the lines are not made to be of uniform length by correspondingly enlarging the spaces between words. Deliberately varying line lengths as a creative technique is referred to as ragged setting.
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| Ream |
A unit of measurement for sheets of paper. Though formerly defined as a 480 sheets, in the U.S. the term now refers to 500 sheets or, in the case of a so-called printer’s ream, 516 sheets. The German “new” ream refers to 1,000 sheets of paper.
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| Recycled paper |
Paper produced from 100 percent used paper. Used paper fibers (also known as secondary fibers) can be used three to five times in this manner. If the recycled paper needs to be pure white, de-inking chemicals have to be used to remove the inks from the used paper, and the fibers also have to undergo a bleaching process.
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| Redigitization |
Process by which print originals in the form of film material are converted back into digital data using scanners and software. The data can be stored in common file formats and then undergo further processing with the appropriate applications, thus allowing a print shop or prepress company to use the scanned films in a digital workflow
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| Reduction factor |
See "reproduction scale".
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| Reel spool |
The take-up roll around which the paper web is wound after reaching the end of its journey through the paper machine.
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| Rendering |
The accurate representation of three-dimensional models by a computer, whereby the object is given the most realistic surface possible, illuminated by an artificial light source and embedded in an equally three-dimensional environment with light, shadows, reflections, etc.
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| Resolution |
In an optical context, a measure of the ability of input and output devices or of photographic films to visualize two adjacent dots independent of one another. The resolution depends on the physical properties of the visualizing or recording device or material and is usually limited by the wavelength of the light source. Resolution is usually given in dots per inch (dpi) or in lines per millimeter.
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| RFID (Radio Frequency Identification) |
Labels used to identify objects that work with radio signals for data transmission in the production, transportation and storage sectors. Instead of barcodes and optical scanning devices, RFID systems use transponders as markers on the objects to be monitored. These units receive radio signals from the relevant interrogation devices and transmit their information back. Some of the key advantages of this technology include the fact that larger volumes of data can be stored in the transponders, the link between the transponder and the interrogation device is reliable without a direct line of sight, the data is interrogated more quickly and the data can be changed.
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Glossary 2.5 is technology by Black Sheep Research







