| abstract |
The present invention relates to a heat-sensitive recording medium having excellent water resistance and yellowing resistance of a white paper portion. In a heat-sensitive recording material having a thermosensitive recording layer containing a leuco dye, a colorant and an adhesive, and a protective layer containing an adhesive on a support, the heat-sensitive recording layer and / or the protective layer Is an acetoacetyl-modified polyvinyl alcohol, the hydrazide compound is contained in the heat-sensitive recording layer and / or the protective layer, and the water-extracted liquid pH of the heat-sensitive recording material by a cold water extraction method (JIS P 8133: 1998) ) Is 5-7. [Selection diagram] None |