Infrared-sensitive diazonaphthoquinone imaging composition and element

摘要

An infrared radiation sensitive imaging composition contains two essential components, namely an infrared radiation absorbing material, and a phenolic resin that is either mixed or reacted with an o-diazonaphthoquinone derivative. These compositions are useful in imaging elements such as lithographic printing plates that can be used to provide either positive or negative images using laser imaging, and that can be adapted to direct-to-plate imaging procedures.