Patent ID: 6677275
Filing Date: 2004-01-13
Classification: B41M

Abstract:
A thermal recording material which possesses a thermally sensitive color developing layer containing colorless or pale colored basic colorless dye and an organic color developing agent as main components on a substrate, wherein said thermally sensitive recording layer contains at least one kind of dihydroxydiphenylsulfone type compound represented by general formula (1) as an organic color developing agent, further contains at least one kind of sulfonamide compound represented by general formula (2), wherein, R1 and R2 indicate an alkyl group or an alkenyl group of carbon number 1 to 8, or a halogen atom and a and b is an integer number of 0 to 3, wherein, R3 indicates an alkyl group of carbon number 1 to 6 or an electron attracting group and n indicates an integer of 0 to 2.