|
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. Also called stacked.
|
|
Gathering
|
Assembling sheets of paper and signatures into their proper sequence; See also collate.
|
|
Generation
|
Stages of reproduction from original copy. A first generation reproduction yields the best quality.
|
|
Ghost Bars
|
A quality control method used to reduce ghosted image created by heat or chemical contamination.
|
|
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.
|
|
Gilding
|
Mostly in the book arena, gold leafing the edges of a book.
|
|
Glassine
|
A strong transparent paper.
|
|
Gloss
|
Term to describe high light reflection on various objects in the printing industry (e.g., paper, ink, laminates, UV coating, varnish).
|
|
Gloss Ink
|
Quick drying oil-based inks with low penetration qualities used on coated stock.
|
|
Grade
|
General term used to distinguish between or among printing papers, but whose specific meaning depends on context. Grade can refer to the category, class, rating, finish or brand of paper.
|
|
Graduated Screen Tint
|
Screen tint that changes densities gradually and smoothly, not in distinct steps. Also called degrade, gradient, ramped screen and vignette.
|
|
Grain
|
The direction in which the paper fiber lie.
|
|
Grain Direction
|
Predominant direction in which fibers in paper become aligned during manufacturing. Also called machine direction.
|
|
Grain Long Paper
|
Paper whose fibers run parallel to the long dimension of the sheet. Also called long grain paper and narrow web paper.
|
|
Grain Short Paper
|
Paper whose fibers run parallel to the short dimension of the sheet. Also called short grain paper and wide web paper.
|
|
Grained Paper
|
A paper embossed to resemble various textures, such as leather, alligator, wood, etc.
|
|
Grammage
|
Basis weight of paper in grams per square meter (gsm).
|
|
Graphic
|
Visual elements that supplement type to make printed messages more clear or interesting. Photographs or illustrations are considered graphics.
|
|
Graphic Arts
|
The crafts, industries and professions related to designing and printing on paper and other substrates.
|
|
Graphic Design
|
Arrangement of type and visual elements along with specifications for paper, ink colors and printing processes that, when combined, convey a visual message.
|
|
Gray Balance
|
Printed cyan, magenta and yellow halftone dots that accurately reproduce a neutral gray image.
|
|
Gray Component Replacement
|
Technique of replacing gray tones in the yellow, cyan and magenta films, made while color separating, with black ink. Abbreviated GCR. Also called achromatic color removal.
|
|
Gray Levels
|
Number of distinct gray tones that can be reproduced by a computer.
|
|
Gray Scale
|
Strip of gray 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
|
A series of metal fingers that hold each sheet of paper as it passes through the various stages of the printing process.
|
|
Gripper Edge
|
Edge of a sheet held by grippers on a sheetfed press, thus going first through the press. Also called 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
|
The blank space or margin between the type page and the binding of a book.
|
