Thermosensitive recording medium

A thermosensitive recording medium capable of forming a visible image thereon for use as a block copy, comprising:

• a transparent support,
• a thermosensitive recording layer provided on said transparent support, comprising a dye and a color developer capable of inducing a color in said dye upon the application of heat thereto in the course of thermal printing, and
• a transparent mat layer provided on said thermosensitive recording layer, comprising a granular filler and a binder resin comprising an electron beam curing resin in an amount of 50 wt. % or more of the entire weight of said binder resin, said mat layer having a surface smoothness of 100 to 2000 sec before being subjected to said thermal printing, and a portion of said may layer subjected to said thermal printing having a surface smoothness of 5,000 sec or less at most.