The assemblage of all the necessary elements required to complete a page.
PANCHROMATIC
Films or other photographic materials that is sensitive to all colors.
PAPERBOARD
Paper with a thickness (caliper) of 12 points (.3mm) or more.
PARCHMENT
A hard finished paper that emulates animal skin; used for documents, such as awards, that require writing by hand.
PARENT SHEET
A sheet that is larger than the cut stock of the same paper.
PASTE DRIER
Any of a variety of compounds used in enhancing the drying properties of printing inks.
PERFECT
A term used to describe the binding process where the signatures of a book are held together by a flexible adhesive.
PERFECTING PRESS
A printing press that prints on both sides of the page in a single pass.
PHOTOMECHANICAL
The platemaking process where plates are coated with photosensitive coatings and exposed to photo negatives or positives.
PHOTOSTAT
A photographic print creating an image using photography and electrostatic processes; also called a stat.
PICA
Typesetting unit of measurement equaling 1^6th of an inch.
PILING
A build up of pigment or paper coatings onto the plate, blankets or rollers.
PIN REGISTER
Using metal pins fitted into preset holes of copy sheets, films, plates and presses that will assure the proper registration
PLASTIC COMB
A method of binding books whereby holes are drilled on the side closest to the spine, and a plastic grasping device is inserted to hold the pages together.
PLASTICIZER
An ink additive that adds flexibility, softness and adhesion.
PLATE CYLINDER
The cylinder on a printing press on which the plate is mounted.
PLATE FINISH
Any bond, cover or bristol stock with an extremely smooth finish achieved by calendaring.
PMT
Photomechanical transfer.
POINT
A measurement unit equal to 1^72 of an inch. 12 points to a pica, 72 points to an inch.
POSITIVE
Film that contains an image with the same tonal values as the original; opposite of a negative. See also negative.
