Patent ID: 7150896
Filing Date: 2006-12-19
Classification: B41M

Abstract:
1. A method of producing a thermosensitive recording medium, which comprises the process (1) of applying an aqueous resin composition comprising a water-repellent filler (A) having a water-repellent surface, which is composed of at least one of an organosilicon compound and an organofluorine compound, and an aqueous solution or water dispersion of a film-forming resin (B), which contains the water-repellent filler (A) on a support and drying the aqueous resin composition to form an undercoat layer which is composed of a matrix of a film-forming resin (B) and a water-repellent filler (A) dispersed in the matrix and has microvoids at the interface between the matrix and the water-repellent filler (A); and the process (2) of applying a thermosensitive color developing aqueous resin composition containing a thermosensitive color developing component in an aqueous solution or a water dispersion of a film-forming resin on the undercoat layer and drying the thermosensitive color developing aqueous resin composition to form a thermosensitive color developing layer.