GLOSSARY
Fine papers:
Papers made specifically for writing or commercial printing, as compared to coarse papers and industrial papers. Also called cultural papers and graphic papers.
Finish:
Surface characteristics of the paper, such as vellum, antique, or smooth.
Formation:
Describes the distribution of fibers on a sheet. When held to a light, a paper with good formation will appear even and consistent, whereas with poor formation it will appear splotchy and uneven. Poor formation can cause mottle or uneven, spotty dry ink distribution in images with high solid area coverage.
Form bond:
Lightweight bond, easy to perforate, made for business forms.
Graphics:
A visual representation formed by writing, drawing, photography or engraving.
Groundwood pulp:
A wood pulp that has not been chemically processed, and which is used to make an economical paper such as newspaper.
Gummed paper:
Paper with an adhesive coating on one side.
H
Heavy weight paper:
Papers classified as having a basis weight greater than 105 gsm (i.e., 28 Ib business papers, 40 Ib Cover, 70 Ib book papers).
G
Gloss:
Characteristic of a paper that makes it shine.
Grade:
The classification given to paper due to its unique characteristics, which includes brightness, opacity, cotton content, etc.
Grain:
The direction of fibers in a paper due to their flow on the papermaking machine.
Grain direction:
The direction of the fibers in paper. Grain long is when fibers run in the same direction as the longest side of the sheet. Grain short is when the fibers run in the direction of the shortest side of the sheet.
Grammage:
Metric method of measuring the basis weight of paper.
Graphic arts:
The name given to the various segments and processes that are used in producing printed products.
I
Index paper:
A stiff stock used when an extremely durable, inexpensive paper is required. With a rough surface and poor formation, it does not provide good quality for color images.
Insert:
A printed brochure or single page that is inserted and bound with the regular copy in a publication.
ISO sizes:
Widely used in countries utilizing the metric system, these sizes are named by having a letter designate the series of the paper and a number to designate the size.
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