PRESSURE-SENSITIVE LABEL FOR THERMAL RECORDING

PROBLEM TO BE SOLVED: To obtain a label which is almost free from the deterioration of color developing power even when the label is preserved for a long time and also the fading of a recorded image even when the label is used under severe conditions and further, does not require a release paper by adding an antihydration agent to at least, one layer out of a thermal recording layer, a first intermediate layer and a second intermediate layer. SOLUTION: An antihydration agent is added to at least, one layer out of a thermal recording layer, a first intermediate layer and a second intermediate layer in order to curb the deterioration of the color developing power of the thermal recording layer by a pressure-sensitive adhesive which is a principal component of a pressure-sensitive adhesive layer. Especially, the antihydration agent is preferably added to the first intermediate layer. The antihydration agent to be added is not particularly specified, as far as it is appropriate for a water-soluble adhesive to be used as an adhesive for the thermal recording layer, the first intermediate layer or the second intermediate layer, and glyoxal is, for example, named. The usage of the antihydration agent is not particularly specified but should be 0.1-15 wt.%, preferably 0.3-10 wt.% for the total solid matter volume to which the antihydration agent is to be added.