Heat-sensitive recording material

Details Heat-sensitive recording material Heat-sensitive recording material

1998-02-13

1999-07-20

Chu, John S.

Radiation imagery chemistry: process, composition, or product th

Microcapsule, process, composition, or product

430157, 430171, 430179, 430182, G03C 518, G03F 7021

Patent

active

059254890

ABSTRACT:
Disclosed is a heat-sensitive recording material comprising a substrate having thereon a heat-sensitive recording layer containing a diazonium coupler, being represented by the following general formula (1): ##STR1## wherein R.sup.1 to R.sup.4 each represents a hydrogen atom, a halogen atom, an aryl group, an alkyl group, a cyano group, an acyl group, a substituted carbamoyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acyloxy group, an alkoxy group, an aryloxy group, an alkylthio group, or an arylthio group.
The diazo-type heat-sensitive recording material, which develops a violet to cyan color, has excellent image stability and image fixing characteristics.

REFERENCES:
patent: 5328796 (1994-07-01), Shimomura et al.
patent: 5407777 (1995-04-01), Shimada et al.
patent: 5773186 (1998-06-01), Takashima
patent: 5866293 (1999-02-01), Nomura et al.
Usami, et al., "UV-Fixable Diazo Type Thermal Recording Material" (Oct. 12, 1986).
Yoshida, et al., "Mechanism of Color Development for UV-Fixable Thermal Recording Material" (Oct. 12, 1986).

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