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Cycolor is a tradename for a (possibly obsolete) color printing process that uses a special film coated with millions of capsules filled with cyan, magenta, and yellow dyes, monomer, and photo-initiators. When exposed to red, green, and/or blue light, the contents of the respective capsules polymerize, and therefore become hard and unbreakable. The film is then pressed against specially treated paper, and the capsules that have not hardened in the previous process break, releasing their contents onto the paper.
Cycolor was developed by Mead Imaging, a start-up created and funded by Mead Corporation, in the 1980s in Miamisburg, Ohio.