Thermal recording material and method for producing the same
AssigneeMitsubishi Paper Mills Limited
InventorShinichiro Matsumoto
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Abstract
Provided is a thermal recording material that is excellent in water resistance and prevention of print head wear, less prone to discoloration in the non-printing area, and stably producible. The thermal recording material comprises a protective layer formed by applying a coating liquid for forming the protective layer, the coating liquid being prepared by mixing an acetoacetyl-modified polyvinyl alcohol and calcium glyoxylate particles with a maximum diameter less than 500 μm and an average diameter of 125 μm or less.
Claims6
A thermal recording material comprising, as essential layers, a heat-sensitive recording layer for color formation by heat and a protective layer stacked in this order on a support, the protective layer being formed by applying a coating liquid for forming the protective layer, the coating liquid being prepared by mixing an acetoacetyl-modified polyvinyl alcohol and calcium glyoxylate particles with a maximum diameter less than 500 μm and an average diameter of 125 μm or less.
A method for producing a thermal recording material comprising, as essential layers, a heat-sensitive recording layer for color formation by heat and a protective layer stacked in this order on a support, the method comprising the steps of:
- preparing a coating liquid for forming the protective layer by mixing an acetoacetyl-modified polyvinyl alcohol and calcium glyoxylate particles with a maximum diameter less than 500 μm and an average diameter of 125 μm or less, and applying the coating liquid to form the protective layer.
Dependencies are inferred from the claim text.