Photo- and heat-sensitive recording material and colorant produ

Details Photo- and heat-sensitive recording material and colorant produ Photo- and heat-sensitive recording material and colorant produ

1998-10-01

2000-05-09

Chu, John S.

Radiation imagery chemistry: process, composition, or product th

Microcapsule, process, composition, or product

430179, 430183, 430185, 430186, 430182, B03C 158

Patent

active

060602066

ABSTRACT:
Disclosed is a photo- and heat-sensitive recording material comprising a substrate and a photo- and heat-sensitive recording layer formed thereon containing a diazo compound and a coupler, wherein the coupler is a compound represented by the general formula (1) or the general formula (2): ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each independently a hydrogen atom or a substituent group; and R.sup.1 and R.sup.2 may join with each other to form a ring. The reaction between the coupler represented by the general formula (2) and a specific diazo compound produces a magenta colorant having very sharp absorption characteristics. In short, the present invention provides a photo- and heat-sensitive recording material which does not inhibit the fixing and which exhibits excellent color formation, color reproduction, and image durability. Further, the present invention provides a magenta colorant which exhibits excellent absorption characteristics.

REFERENCES:
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patent: 3899335 (1975-08-01), Przezdziecki
patent: 3910794 (1975-10-01), Buisine et al.
patent: 4957847 (1990-09-01), Adam et al.
patent: 5407777 (1995-04-01), Shimada et al.
patent: 5886293 (1999-02-01), Nomura et al.
patent: 5925489 (1999-07-01), Kawabuchi et al.

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