Glossary

The PRINTING United Alliance Glossary serves as an excellent industry terminology resource. It is the language by which we all communicate. Without it, universal understanding would be impossible.

To keep our constituents well informed about changes to the increasingly complex industry terminology, PRINTING United Alliance has developed this glossary of terms. Definitions are for general reference only. Usage may vary between companies, individuals, or national and country customs. The information presented is as accurate as the authors and editors can ascertain and PRINTING United Alliance assumes no responsibility for the use of information presented herein.
  • Free radical
    A reactive material which initiates polymerization in UV curable formulations, generally by the loss of an electron.
  • Radical
    An extremely reactive chemical particle with an atom or group of atoms with at least one unpaired electron, also referred to as free radical.