Thermographic recording material with improved developability

A thermographic recording process comprising the steps of:

• (i) bringing an outermost layer of a thermographic recording material, produced according to a process for preparing a substantially light-insensitive black and white thermographic recording material comprising a thermosensitive element and a support, said thermosensitive element comprising at least one substantially light-insensitive organic silver salt, an organic reducing agent therefor in thermal working relationship therewith, a toning agent and a binder, wherein said thermosensitive element further comprises deliberately added metal nano-particles in a molar ratio with respect to the total molar concentration of said at least one substantially light-insensitive organic silver salt in the range of 0.05:1 to 10−6:1, comprising the steps of:
• (I) mixing a dispersion comprises at least one substantially light-insensitive organic silver salt, a suspending medium and deliberately added metal nano-particles in a molar ratio with respect to the total molar concentration of said at least one substantially light-insensitive organic silver salt in the range of 0.05:1 to 10−6:1, wherein said substantially light-insensitive organic silver salt is substantially insoluble in said suspending medium with a reducing agent and a toning agent;
• and (II) coating the dispersion prepared in step (I) on a support, into proximity with a heat source;
• (ii) applying heat from said heat source imagewise to said thermographic recording material in a substantially water-free condition while maintaining proximity to said heat source to produce an image;
• and (iii) removing said thermographic recording material from said heat source.