U

ultraviolet inks

Ink that cures when exposed to ultraviolet (UV) light. Other Term: UV ink.

unbleached

A light brown paper produced from unbleached pulp.

uncoated

A paper without a mineral coating.

undercolor

The cyan, magenta, or yellow used in dark tones. A process printing term.

underexposure

A photosensitive material that has received too little light resulting in a dark print lacking detail.

underrun

Producing less paper or output than ordered. Many organizations have a standard on what is considered an acceptable amount of underrun or overrun. See overrun.

undertone

The color of an ink or film due to light reflecting through it from the substrate. (e.g., The substrate may make the ink color appear lighter or darker, or offshade.).

undertrapping

The unwanted appearance of white space between two adjacent colors. An inadequate or insufficient amount of applied trapping. See trapping.

unit set

1. The height of a typeface measured in units rather than points. See also: point size. 2. A multilayer form containing a carbon paper leaf or a NCR layer.

unjustified text

See flush left; justification; quad left; ragged right.

uppercase

Capital letters of the alphabet, or those characters created by pressing the computer keyboard "shift" key in combination with another key. See also: lowercase.

utilities

A software application used for maintenance or other routine chores (e.g., the LAUNCH! Web Helper).

UV inks

See ultraviolet ink.