| 摘要 |
Composition comprises: (a) one, two, three or more color developers each comprising one, two, three or more than three carboxylic structural units (I); (b) one, two, three or more dye precursor for forming visually recognizable color by reaction with the color developers; and (c) one, two or more compounds consisting of zinc salts, ammonium salts or zinc oxide. Composition comprises: (a) one, two, three or more color developers each comprising one, two, three or more than three carboxylic structural units of formula (I); (b) one, two, three or more dye precursor for forming visually recognizable color by reaction with the color developers; and (c) one, two or more compounds consisting of zinc salts, ammonium salts or zinc oxide. z : greater than 1. Independent claims are included for: (1) use of one or more compound consisting of zinc salts, ammonium salts and zinc oxide, preferably zinc carbonate, zinc oxide, ammonium hydrogen sulfate, ammonium nitrate, ammonium hydrogen phosphate and zinc acetate for the modification of the dynamic print density and/or the static pressure density, preferably for increasing the dynamic maximum pressure density and/or the maximum static pressure density of a mixture comprising the color developer and the dye precursor to form a visually recognizable color by reaction with the color developer; (2) a heat sensitive recording material comprising a substrate, and a thermosensitive recording layer having the composition; and (3) producing the heat-sensitive recording material, comprising manufacturing or providing the composition, preparing or providing the substrate, and coating the substrate with the composition, where the coating step is performed by a coating apparatus consisting of a roller blade coater, a knife coater, a curtain coater or an air brush coater. [Image]. |
