Heat-sensitive recording material
AssigneeKanzaki Paper Manufacturing Co., Ltd.
InventorsTetsuo Tsuchida, Yukihiro Abe, Takehiro Minami, Naoto Arai
Life of this patent
Estimating the term…
Abstract
Disclosed is a heat-sensitive recording material comprising (A) a support and (B) a heat-sensitive recording layer formed on the support and containing a colorless or pale-colored basic dye and a color developing material which develops a color on contact with the dye, the recording material being characterized in that the color developing material comprises at least one member selected from the group consisting of o-naphthoic acid and polyvalent metal salts thereof.
Claims20
A heat-sensitive recording material comprising (A) a support and (B) a heat-sensitive recording layer formed on the support and containing a colorless or pale-colored basic dye and a color developing material which develops a color on contact with the dye, the recording material being characterized in that the color developing material comprises at least one member selected from the group consisting of .alpha.-naphthoic acid and polyvalent metal salts thereof.
Dependencies are inferred from the claim text.