December 12, 2016

Safety Paper

Paper especially formulated with a protective background to show erasures, or other means to expose forgery or document alterations, such as paper used for checks, bonds, bank slips, coupons, tickets,
December 12, 2016


The act of—or the computer function that facilitates—altering the size of an image or font proportionately. See Scale.
December 12, 2016

Semichemical Pulping

Method of converting wood chips to paper pulp for papermaking utilizing a combination of chemical and mechanical means. The purpose of pulping is to separate individual fibers of cellulose from other non-fibrous components of wood, in
December 12, 2016


A process by which the printing size of halftone dots is reduced and is often performed to reduce the effects of dot gain. On color separation negatives, sharpening is accomplished by means of dot
December 12, 2016


An attribute of any image that describes the degree of clarity of the edge(s) of that image. Sharpness is applied to photographs, digital images, scans, proofs, line art, a computer video
December 12, 2016

Sharpness Filter 

A tool in digital image manipulation programs to increase the sharpness of an image. See Sharpness.
December 12, 2016


An individual, rectangular piece of paper, as opposed to a continuous paper web, cut to a particular standard size orodd size. The term sheet also refers to a metal substrate greater than 0.006
December 12, 2016

Sheet Decurler 

A device on some sheetfed printing presses (especially those used in offset lithography) located between the lastimpression cylinder and the delivery pile that works to remove the curl from press sheets. A typical sheet
December 12, 2016


A device used to cut a paper web into individual sheets. See Single Rotary Cutter and Double Rotary Cutter, andSheeting
December 12, 2016


Descriptive of any printing press which prints on discrete sheets of paper (or other substrate). See also webfed. Also spelled with a hyphen, sheet-fed.

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