A
ABSORBENCY
Absorbency is the ability of a paper to take in liquids such as ink and varnish
ACID-FREE
Acid-Free refers to an alkaline-based manufacturing process for making paper. Acid-free paper has greater brightness and longevity than traditional papers. It is commonly used in framing materials or in creating documents of historic significance, as it resists deterioration. All GP papers are acid-free!
B
BASIS WEIGHT
Basis weight (lbs.) is a standard measure for paper and refers to the actual weight of 500 sheets in its uncut size (base size). 20 lb. paper is the standard for everyday use. 24 lb. paper is a medium weight and ideal for presentations; it will perform better in laser printers and ink jet printers. 28 lb. paper is a heavy-weight premium presentation paper and is deal for color presentations, fliers, reports and newsletters.
BRIGHTNESS
How bright is white? The paper industry has developed a numbering system that rates the degree of brightness and whiteness. Standard brightness is considered an 84, which is an average white paper. Papers rated 87-90 are "high bright" and appear very white. Anything rated higher than 90 is considered "premium brightness" and often appears to be blue-white. Images printed on brighter, whiter papers have better clarity and contrast, and colors appear more realistic.
F
FINISH
The finish on a sheet of paper refers to certain surface characteristics including smoothness, appearance and gloss.
G
GRAIN
The grain in paper is the alignment of fibers in the direction of their flow on the paper machine. Grain affects tear strength, stiffness and dimensional stability.
I
INK JET PRINTING
A method of printing that creates a desired image on paper by releasing droplets of liquid inks under pressure from a printhead containing one or more nozzles.
L
LASER PRINTING
A method of printing that uses a laser beam that is focused on a rotating mirror, which deflects light through a focusing lens. The printer uses a high-powered, single concentrated light source that is directed onto a photosensitive material located on a drum. Dots are created in succession as the light beam scans the rotating drum on a horizontal path.
O
OPACITY
Opaque papers reduce or eliminate the visibility of the printed ink on the opposite side of the sheet. They also prevent the ink on the following page from showing through the top sheet. In the past, these benefits were reserved for duplex papers - two sheets actually sandwiched together. However, many Georgia-Pacific papers are now so opaque, they offer the same benefits in a single layer of paper.
R
RECYCLED CONTENT PAPER
Recycled content paper contains a specified percentage of recovered paper materials. Georgia-Pacific offers GP Geocycle® Recycled Copier with 30% recycled content.
REAM
A ream is the quantity in which paper is packaged. Standard sheet count in a ream of paper is 500 sheets.
S
SHADE
Shade refers to the saturation of the paper's color. For example, a pastel shade of blue will appear much lighter and less saturated than a royal or bright blue. A paper's shade is a particularly important consideration when printing photographs.
SMOOTHNESS
Smoothness is a measured property of paper that describes or rates the flatness and evenness of a sheet's surface. The smoothness of paper affects how the crisp the printed image appears.
SURFACE
Different papers have different surface characteristics. Copier papers and some premium papers fell extremely smooth to the touch. However, these surfaces are not appropriate for fax machines, laser printers or ink jet printers, which require special surface treatments in order to properly hold the ink. Other papers may feel rough or more coarse to the touch. These surfaces may add the design of the printed piece.
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