Thermosensitive recording material

Details Thermosensitive recording material Thermosensitive recording material

1991-11-22

1993-10-05

Schwartz, Pamela R.

Record receiver having plural interactive leaves or a colorless

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

Identified color-former

503200, 503221, 503226, B41M 528

Patent

active

052504930

ABSTRACT:
A thermosensitive recording material having a support and a thermosensitive coloring layer formed on the support, which thermosensitive coloring layer includes at least a first thermosensitive coloring layer containing at least one leuco dye having formula (I), (II) or (III) and a color developer capable of inducing color formation in the leuco dye under application of heat thereto, and a second thermosensitive coloring layer containing at least one leuco dye having formula (IV) and a color developer capable of inducing color formation in the leuco dye under application of heat thereto. The leuco dye for use in the first thermosensitive coloring layer has the absorption intensity in the near infrared region, and the leuco dye for use in the second thermosensitive coloring layer has the absorption intensity in the visible spectrum.

REFERENCES:
patent: 3843384 (1974-10-01), Adachi et al.
patent: 4748148 (1988-05-01), Kondo et al.
patent: 4939116 (1990-07-01), Ueda et al.

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