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Vehicles and Varnishes

The role of vehicles and varnishes is a critical one, and suppliers are developing new technologies while also facing increasingly higher raw material costs.

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By: DAVID SAVASTANO

Editor, Ink World Magazine

The importance of vehicles and varnishes in  inks is difficult to overstate. They play a key role in determining the physical and chemical properties of the final ink, and make up a sizable portion of the ink.     “Typically 70 percent of an offset ink is varnish,” said Chris Halvorsen, global market manager – commercial for Hexion Specialty Chemicals. “The vehicle is used to disperse or flush pigment and used in the letdown phase in the ink making phase. Vehicles are design...

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