Multi-layer thermally imageable element

This invention relates to lithographic printing. More particularly, this invention relates to multi-layer thermally imageable elements, useful as lithographic printing plate precursors, that can be thermally imaged and processed with aqueous alkaline developers. Multi-layer thermally imageable elements, useful as a lithographic printing plate precursors, are disclosed. The elements contain a top layer, an absorber layer that contains a photothermal conversion material and a hydrophilic substrate. An optional underlayer may also be present between the absorber layer and the hydrophilic substrate. The elements can be thermally imaged and processed with an aqueous alkaline developer.