GRC 324 Chapter Notes - Chapter 10: Flexography, Inverse Relation, Pyrometer
28 May 2017
School
Department
Course
Professor
Document Summary
Transferring metal to a substrate in order to achieve a shiny, reflective pattern. Create die of image to be transferred that applies foil to substrate. Die: raised portions = image areas // recessed portions = non-image areas. Using heated metal die (can be flat or in rotary form) Very opaque; used to lay light color on dark stock. Cold foil: technique using traditional flexo plate to apply adhesive to substrate. Free-radical adhesive: uv cured after nipping foil to substrate. Cationic adhesive: brief curing step prior to nipping foil. Copper: good heat conductor, heats and cools very quickly. Do not last as long as brass dies. Used for simple projects @ short run length. Do not hold as much detail as other die materials. Die expansion: when they heat up, they expand and lose registration. Layers of common metallic foil: polyester film: carrier sheet for other materials, release coat: releases colorant from polyester film a.
