Wash Deinking 

In General Printing Terms by Inkjet Insight

A method of removing ink and making recovered fibers suitable for the production of recycled paper. See Deinking.

Water Immersion Test

In General Printing Terms by Inkjet Insight

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

Web 

In General Printing Terms by Inkjet Insight

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

Web Break 

In General Printing Terms by Inkjet Insight

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

Web Tension

In General Printing Terms by Inkjet Insight

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.

Wettability 

In General Printing Terms by Inkjet Insight

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

Wetting 

In General Printing Terms by Inkjet Insight

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

Wetting Agent 

In General Printing Terms by Inkjet Insight

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