Photothermographic recording material coatable from an aqueous medium

摘要

A process for producing an aqueous dispersion I containing particles including a substantially light-insensitive organic heavy metal salt A with a solubility in 100 mL of water of less than 10-3 g at 20° C. comprising the steps of: (i) producing an aqueous dispersion II containing particles containing a salt B with a solubility in 100 mL of water between 1.5 g and 0.001 g at 20° C.; and (ii) converting the salt B in the particles of the aqueous dispersion II into the organic heavy metal salt A, wherein the organic heavy metal salt A and the salt B have a common cation; and a production process for thermographic and photothermographic materials therewith.