| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat-sensitive recording material excellent in plasticizer resistance, moist heat-resistant background fogging, and color re-development.SOLUTION: A heat-sensitive recording material has a heat-sensitive recording layer containing 4,4'-dihydroxydiphenylsulfone on a paper support medium containing a neutral rosin size agent as much as 0.25-1.0 mass% to a pulp solid portion, and amphoteric polyacrylamide in which the ratio of a cationic group to calcium carbonate, aluminum sulfate and an anionic group is 50-200%.SELECTED DRAWING: None |
