- Galileo (A & B)
-
The Agfa computer-to-plate devices situated in the press room. These
machines use ruby-red laser technology to expose to a photo-sensitive plate
surface and deliver them for use via an in-line Lithostar processor.
- Galley Proof
-
Proof of type from any Source, whether metal type
or photo type.
- Gang
-
1. To halftone or separate more
than one image in only one exposure.
-
2. To reproduce two or
more different printed products simultaneously on one sheet of paper during one
press run. Also called combination run.
- Gate Fold
-
A sheet that folds where both sides fold toward the gutter in
overlapping layers.
- Gathered
-
Signatures assembled
next to each other in the proper sequence for binding, as compared to
nested.
- Ghost Halftone
-
Normal halftone whose density
has been reduced to produce a very faint image.
- Ghosting
-
1. Phenomenon of a faint image appearing on a printed sheet where it
was not intended to appear. Chemical ghosting refers to the transfer of the
faint image from the front of one sheet to the back of another sheet.
Mechanical ghosting refers to the faint image appearing as a repeat of an image
on the same side of the sheet.
-
2. Phenomenon of printed image
appearing too light because of ink starvation.
- GIF
-
Graphics Interchange Format. An image format used primarily for Web or
Internet images. Not suitable for High-End print reproduction.
- Gilding
-
Mostly in the bookwork field, gold leafing the edges
of a book.
- Given, The
-
Generic term used to describe
the publication containing all the Parliamentary Questions tabled on a given
day. Printed on blue stock and forms part of the Vote Bundle.
- Given Supplement
-
Generic term for the publication containing
all the Commons Amendments tabled on a given day. It contains the amendments to
a particular Bill in the order they were tabled, not the order in which they
are to be considered. Printed on Blue, Bench Copies will also be produced.
- GLA
-
1. The abbreviation used for Greater London
Assembly.
-
2. Generic term used to refer to any publication
produced for the Greater London Assembly. These publications are digitally
produced in the main.
- Gloss
-
Consider the light
reflecting on various objects in the printing industry (e.g., paper, ink,
laminates, UV coating, varnish).
- Gloss Ink
-
Ink used
and printed on coated stock (mostly litho and letterpress) such as the ink will
dry without penetration.
- Goatskin
-
Term used to
describe Goatskin Parchment. A thick, durable stock used for the production of
archival material.
- Graduated Screen Tint
-
Screen tint
that changes densities gradually and smoothly, not in distinct steps. Also
called degrade, gradient, ramped screen and vignette.
- Grain Direction
-
Predominant direction in
which fibres in paper become aligned during manufacturing. Also called
machine direction.
- Grain Long Paper
-
Paper whose
fibres run parallel to the long dimension of the sheet. Also called long
grain paper and narrow web paper.
- Grain Short Paper
-
Paper whose fibres run parallel to the short dimension of the sheet.
Also called short grain paper and wide web paper.
- Grammage
-
Basis weight of paper in grams per square meter.
See also GSM.
- Graphic Design
-
Arrangement of type and visual elements along with specifications for paper,
ink colours and printing processes that, when combined, convey a visual
message.
- Graphics
-
Visual elements that supplement
type to make printed messages more clear or interesting.
- Gravure
-
Method of printing using metal cylinders etched with
millions of tiny wells that hold ink.
- Grey Balance
-
Printed cyan, magenta and yellow halftone dots that accurately, reproduce a
neutral grey image.
- Grey Component Replacement
-
Technique of replacing grey tones in the yellow, cyan and magenta films,
made while colour separating, with black ink. Abbreviated GCR. Also called
achromatic colour removal.
- Grey Levels
-
Number
of distinct grey tones that can be reproduced by a computer.
- Grey
Scale
-
Strip of grey values ranging from white to black. Used by
process camera and scanner operators to calibrate exposure times for film and
plates. Also called step wedge.
- Grind Edge
-
Alternate term for binding edge when referring to perfect bound
products.
- Grindoff
-
Approximately 1/8 inch (3 mm)
along the spine that is ground off gathered signatures before perfect
binding.
- Gripper Edge
-
Edge of a sheet held by
grippers on a sheeted press, thus going first through the press. Also
called grip, feeding edge and leading edge.
- Groundwood
Paper
-
Newsprint and other inexpensive paper made from pulp created
when wood chips are ground mechanically rather than refined chemically.
- GSM
-
The unit of measurement for paper weight
(grams per square meter).
- Gutter
-
In the bookwork
field, the inside margins toward the back or the binding edges.