GCM 240 Chapter Notes - Chapter 10: Flexography, List Of Recurring Futurama Characters, Diluent
29 Nov 2016
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Document Summary
Printing ink is a coloured medium used to transfer an image from plate to substrate. Ink manufacturers formulate ink to meet the specified requirements of the intended end use. This allows for dry trapping: dry trapping: each subsequent colour prints on a dry film of ink. Viscosity of flexographic ink is like a free-flowing liquid (oil or syrup) Flexo ink consists of a colourant, either an insoluble solid or dye, suspended or dissolved in a vehicle. On the substrate, the diluent (solvent) evaporates, absorbs, or cures, leaving only the solids. Flexo ink use to be called aniline ink: made from aniline oil as the colourant. Ink systems are the recipe for a specific press type, printing on a specific substrate. Ink types: two types of flexographic inks are volatile and energy curable. Volatile inks: dries by evaporation and/or absorption. Energy curable inks: cured with light energy.
