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Dampeners:
In lithography, cloth-covered, parchment paper or rubber (bare back) rollers that distribute the dampening solution to the press plate or ink roller.
   
Dampening System:
In lithography, the mechanism on a press for transferring dampening solution to the plate during printing.
  
Dandy Roll:
In papermaking, a wire cylinder on papermaking machines that makes woven or laid effects on the texture, as well as the watermark itself.  Used in the manufacture of better grades of business and book papers.
  
Database:
A program that allows the storage of records (individual items which can be text or images) with fields of data to permit sorting and reorganization for list and file management. 
  
DCS:
(Desktop Color Separation) A format that creates four PostScript files: one for each separation and one master file.
   
DDES:
Digital Data Exchange Specifications.
   
Debossing:
A process in which an image is pressed down into the paper srface.  Differs from embossing, which is a raised image.
       
Deckle:
In papermaking, the width of the wet sheet as it comes off the wire of a paper machine.
   
Deckle Edge:
The untrimmed feathery edges of paper formed where the pulp flows against the deckle.
  
Densitometer:
In photography, a photoelectric instrument that measures the density of photographic images, or of colors.  In printing, a reflection densitometer is used to measure and control the desity of color inks on the substrate. 
   
Density:
The degree of darkness (light absorption or opacity) of a photographic image.
   
Depth:
Same as Repeat. The measurement from the top of one label to the top of the next label.
   
Descender:
That part of a lowercase letter that extends below the main body, as in "p".
   
Desensitizer:
In lithographic platemakin, chemical treatment to make non-image areas of a plate repellant to ink.  In photography, an agent for decreasing color sensitivity of photographic emulsion to facilitate development under comparatively bright light.
 
Desktop Publisher:
Process of composing pages using a standard computer, off-the-shelf software and a device-independent page description language like PostScript, and outputting them on a printer or imagesetter.
  
Developer:
In photography, the chemical agent and process used to render photographic images visible after exposure to light.  In lithographic platemaking, the material used to remove the unexposed coating.
   
Diazo:
In photography, a nonsilver coating for contact printing.  In offset platemaking, a light-sensitive coating used on presensitized and wipe-on plates.
  
Die:
A tool or device used for imparting or cutting a desired shape from a given material. All of our products use a die or similar tooling in the manufacturing process.
   
Die Cut:
The actual shape of a pressure sensitive label made by the cutting edge of a die.
   
Die Cut Label:
Pressure sensitive labels on a release liner where the matrix, or waste between labels, usually has been removed.
  
Diecutting:
The process of using sharp steel rules to cut special shapes for labels, boxes and containers, from printed sheets.  Diecutting can be done on either flatbed or rotary presses. Rotary diecutting is usually done in line with the printing.
 
Die-stamping:
An intaglio process for the production of letterheads, business cards, etc., printing from lettering or other designs engraved into copper or steel.
 
Diffusion Transfer:
In photography and platemaking, a system consisting of a photographic emulsion on which a negative is produced and a receiver sheet on which a positive of the image is transferred during processing.
  
Digital Color Proof:
A color produced from digital data without the need for separation films.
   
Digital Plates:
Printing plates that can be exposed by lasers or other high-energy sources driven by digital data in a platesetter.
  
Digital Printing:
Printing by plateless imaging systems that are imaged by digital data from prepress systems.
   
Digitized Typesetting:
In typographic imaging, the creation of typographic characters and symbols by the arrangement of black-and-white spots called pixels or pels.
   
Digitizer:
A computer peripheral device that converts an analog signal (images or sounds) into a digital signal.
   
Dimensional Stability:
Ability to maintain size; resistance of paper or film to dimensional change with change in moisture content or relative humidity.
  
Direct Thermal Printing:
A specialized printing technology that uses rapidly-heated pins that selectively activate a heat-sensitive coating inherent in the face material, thus forming the desired copy.
  
Disk Drive:
A device that reads information from and writes information onto disks.  The two main types are floppy-disk drives and hard-disk drives.
   
Display Type:
In composition, type set larger than the text.
   
Dithering:
In computer graphics, a technique for filling the gap between two pixels with another pixel having an average value of the two to minimize the difference or add detail to smooth the result.
  
Doctor Blade:
In gravure, a knife-edge blade pressed against the engraved printing cylinder that wipes away the excess ink from the nonprinting areas.
  
Domain Name:
Name given to a host computer on the Internet.
   
DOS:
Disk Operating System) In digital imaging, a program containing instructions for a computer to read and write data to and from a disk.  An operating system (set of programs) that instructs a disk-based computing system to manage resources and operate peripheral equipment.
   
Dot:
The individual element of halftone.
   
Dot Etching:
In photography, chemically reducing halftone dots to vary the amount of color to be printed. Dot etching on negatives increases color; dot etching on positives reduces color.
   
Dot Gain:
In printing, a defect in which dots print larger than they should, causing darker tones or stronger colors.
  
Dot Matrix Printer:
A form of impact printing that produces images by printing tiny ink dots close together. A series of pins fire against a ribbon leaving ink on the substrate. This method of printing is associated with Electronic Data Processing Labels or Pinfeed Labels.
  
DPI:
(Dots Per Inch) A measure of the resolution of a screen image or printed page.
   
Draw-down:
In inkmaking, a term used to describe ink chemist's method of roughly determining color shade.  A small glob of ink is placed on paper and drawn down with the edge of a putty knife spatula to get a thin film of ink.
   
Draw Program:
A graphics program that generates object-oriented graphics which are treated as units, rather than a series of dots. (Compare paint program.)
   
Drier:
In inkmaking, a substance added to hasten drying.
  
Driver:
A disk file that contains information needed by a program to operate a  peripheral such as a monitor or a printer.
  
Drop-out:
Portions of originals that do not reproduce, especially colored lines or background areas. This is often an intentional effect.
  
Drum Scanner:
Uses photo multiplier tubes (PMT) and produces color separations with higher resolution and dynamic range than CCD scanners.
        
Dry-up:
See catching up.
  
DSL:
(Digital Subscriber Line) Allows high-speed access to the Internet over the telephone network.
   
Dummy:
A preliminary layout showing the position of illustrations and text as they are to appear in the final reproduction.  A set of blank pages made up in advance to show the size, shape, form and general style of a piece of printing.
   
Duo-Image:
Image is printed on both Image and Liner.
Duotone:
In photomechanics, a term for a 2-color halftone reproduction from a 1-color photograph.
   
Duplex Paper:
Paper with a different color or finish on each side.
  
Duplicating Film:
A film for making positives from positives and negatives from negatives.  In color reproduction, a special film used for makin duplicates of color transparencies.
  
DVD:
(Digital Video or Versatile Disk) A CD-ROM that can store audio, video and computer data at four more gigabytes per disk.
  
Dye Transfer:
In photography, a process of producing color prints by tanning photographic emulsions and using them to transfer dye solutions to film or paper coated with gelatin.
  
Dylux:
A fast, self-fixing proofing paper that is sensitive on both sides.
  
Dynamic Range:
Density difference between highlights and shadows of scanned subjects.
   
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AVERY®, CD STOMPER®, and STOMPER™ labels are manufactured by Avery Dennison. AVERY®, CD STOMPER®, and STOMPER® are registered trademarks of that company. Compulabel.com does not manufacture or sell AVERY®, CD STOMPER®, and STOMPER™ brand products.  Avery Dennison product code numbers are trademarks of Avery Dennison.

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