Patent ID: 6258747
Filing Date: 2001-07-10
Classification: B41M

Abstract:
A thermally sensitive recording medium having a thermally sensitive color developing layer comprising a colorless or pale colored dye precursor and a color developer as main components, on a substrate, wherein the color difference a* value, measured according to JIS-Z-8729, of developed image of said thermally sensitive recording medium is 0 to 50, and the color difference b* value measured according to JIS-Z-8729, of developed image of said thermally sensitive recording medium is -15 to 10 wherein the dye precursor comprises at least one red color developing leuco dye whose maximum absorption wave length is 480 to 570 nm and at least one black color developing leuco dye whose maximum absorption wave length is 420 to 480 nm and 550 to 640 nm.