Display Type

Any type that stands out from the rest of the type on a page which attracts attention of the reader.

Distribution Rollers

In the printing process, the rubber coated rollers responsible for the distribution of ink from the fountain to the ink drum.

Doctor Blade

A term in gravure printing which refers to the knife-edge that runs along the printing cylinder; its function is to wipe the excess ink away from the non-printing areas.

Dog Ear

Occurs when you fold into a fold (such as a letter fold). At the side of one of the creases you get an indentation. It may look like a small inverted triangle.

Dot

The smallest individual element of a halftone.

Dot Gain

Darkening of halftone image due to ink absorption in paper causing halftone dots to enlarge. Terms to describe the occurrence whereby dots are printing larger than they should.

Draw-down

A method used by ink makers to determine the color, quality and tone of ink. It entails the drawing of a spatula over a drop of ink, spreading it flat over the paper.

Drier

A term that describes any additives to ink which encourages the drying process.

Drill

The actual drilling of holes into paper for ring or comb binding.

Drop Folio

Page number printed at foot of page.

Drop Shadow

A shadow image placed strategically behind an image to create the affect of the image lifting off the page.

Dry Mount

Pasting with heat sensitive adhesives.

Dry Offset

Process in which a metal plate is etched to a depth of 0.15 mm (0.006 in), making a right-reading relief plate, printed on the offset blanket and then to the paper without the use of water.

Ductor Roller

The roller between the inking and the dampening rollers.

Dull Finish

Any matte finished paper.

Dummy

A term used to describe the preliminary assemblage of copy and art elements to be reproduced in the desired finished product; also called a comp.

Dummy Model

Resembling finished piece in every respect except that the pages and cover are blank, used by the designer as a final check on the appearance and +feel+ of the book as a guide for the size and position of elements on the jacket.

Duotone

Color reproduction from monochrome original. Keyplate usually printed in dark color for detail, second plate printed in light flat tints. A two-color halftone reproduction generated from a one-color photo.

Duplex Paper

Paper which has a different color or finish on each side.

Dutch

Any deckle edged paper, originally produced in the Netherlands. Reference, deckle edge

Dye-Based Ink

Any ink that acquires its color by the use of aniline pigments or dyes. Reference, aniline

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