Heat-sensitive recording material

Details Heat-sensitive recording material Heat-sensitive recording material

1991-07-23

1993-04-27

Schwartz, Pamela R.

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Heavy metal reactant

503211, 503212, 503216, 503217, 503221, B41M 532

Patent

active

052062104

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.

REFERENCES:
patent: 3924027 (1975-12-01), Saito et al.
patent: 4134847 (1979-01-01), Oda et al.
patent: 4236732 (1980-12-01), Murakami et al.
patent: 4352860 (1982-10-01), Kubo et al.
Patent Abstracts of Japan, vol. 13, No. 519 (M-895) (3867) published on Nov. 20, 1989 (Japanese Unexamined Patent Publication 1-209184 published on Aug. 22, 1989).

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