December 12, 2016
A method of removing ink and making recovered fibers suitable for the production of recycled paper. See Deinking.
December 12, 2016
Washout Ink
A type of water-washable ink used for printing on textiles and fabrics that is easily washed out.
December 12, 2016
Water Immersion Test
A test to determine a paperboard’s water resistance or degree of sizing in which a paperboard sample is weighed, then immersed in water for a set period of time, at which point
December 12, 2016
Web
Term for a continuous roll of paper that forms on a papermaking machine, or the paper roll that is used uncut in web offset lithography. Paper webs can either be cut into sheets
December 12, 2016
Web Break
The breaking of a paper web when it is on-press, which can occur at any point from start to finish, and which is caused by many factors. A web break
December 12, 2016
Web Break Detector
In web printing, an auxiliary device which automatically detects the site of a web break and immediately shuts down the press.
December 12, 2016
Web Tension
In web offset lithography, the pull applied to a web of paper as it travels through the press. See Web Offset Lithography: Infeed and Web Control.
December 12, 2016
Wettability
A property of printing inks that describes the ability of the dry ink film to resist bleeding, discoloring, fading, etc., upon exposure to moisture. An ink’s wettability is an important consideration
December 12, 2016
Wetting
A procedure performed in the ink-manufacturing process in which the particles of pigment are coated with varnish so as to enable them to be ground more easily and finely and disperse more completely in
December 12, 2016
Wetting Agent
A substance added—typically in small quantities—to a liquid in order to reduce its surface tension and allow solids to be more completely wet by the liquid. A variety of wetting
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