A-B
A
A SIZES: Series of finished trimmed sizes in the ISO international paper size range.
A4 CONTINUOUS: Nearest comparable size to A4. Produced on continuous machines it allows 1/2' on either edge for removal of sprocket holes after end-use via computer printer. Size is 11.666' depth x 9.25'. With micro perfs compares favourably with A4 cut sheet.
ABRASION RESISTANCE: Ability of a surface to resist rubbing or other frictional forces without being worn away.
AIR-DRIED: Paper dried by a current of warm air after tubsizing.
ANTIQUE FINISH: Description of paper finish, a natural, rough texture, usually selected for book and cover papers where bulk and light weight are required.
ART PAPER: Paper which has received a coating of china clay and size. Usually shiny this paper has a very smooth surface which may be matt or dull.
ASH CONTENT: Ash content is determined by amount of mineral fillers contained in paper. Stiffness of paper is reduced by increased ash content.
B
B SIZES: ISO International sizes, intended primarily for posters, wall charts and similar items where there is too great a difference in size of the larger sheets in the A Size series.
BACKGROUND REFLECTANCE: Optical quality of a background surface, such as paper. It is described in terms of the amount of radiant energy received from its surface by a sensing device. Reflectance is expressed as a percentage of a standard reference material.
BACKING OR RELEASE PAPER: Carrier for self adhesive material such as labels. The backing readily separates from the adhesive label prior to the application of the material to a surface. [release paper]
BANK PAPER: Fine writing or typewriting paper - ranging in weight from 45g/m2 to under 63g/m2. Mainly for use with carbon paper to take one or more copies from a top copy of heavier weight. [bond]
BASIC SIZE: Size of paper used to define basis weight. Size varies depending on the paper grade. Basic size of bond and writing papers is 17' x 22'. Basic size of offset papers is 25' x38'.
BASIS WEIGHT: Designated fixed weight of one ream [500 sheets] of paper, in the paper's basic sheet size. Used as the basis for measuring the substance of paper by weight. Fixed basic sizes that determine designated weights and apply to different paper types.
BLADE COATED: Paper coating method using an air blade or metal blade.
BOARDS - BRISTOL: Type of fine quality cardboard which can be strengthened by pasting two, or even more sheets, together.
BOARDS - CHIP Low quality board made from mechanical wood and waste materials.
BOARDS - MILL: High grade board, made from rope and other materials.
BOARDS - PASTE: Two or more laminations of paper with middle or lower quality.
BOARDS - PULP: Homogeneous sheet which breaks very easily when bent, and is manufactured from pulp on a cylinder machine.
BOARDS - STRAW: Straw composition board, usually used for making covers of cheaper books.
BODY PAPER: Base of coated paper.
BOND PAPER: Heavier weight of writing or typewriting paper than ''bank'' supplied in 63g/m2 and over.
BRIGHTNESS: Normally associated with white paper, this is the paper's ability to reflect light. The brightness of a paper is expressed as a percentage, obtained by comparing a sample of paper, called a ''calibration sample'', with the paper to be tested.
BROADSIDE: Sheet of paper in its basic size, or paper that is not folded or cut.
BUILD-UP: Condition at production stage, in which material such as paper dust or lint, accumulates and adheres to a roller, cylinder, blanket or other part of a press. Also refers to formation of an uneven pile caused when one side of a form is thicker.
BULK Thickness of paper [caliper], or the thickness of the total number of pages in a publication.