Thermolabile acutance dyes for dry silver

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Antihalation or filter layer containing

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430517, 430619, G03C 184, G03C 102

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active

042834872

ABSTRACT:
Images produced in photothermographic emulsions using silver halide as a light-sensitive material therein suffer from light scattering effects on the silver halide.
Acutance dyes, many of which are novel, are disclosed which can absorb scattered light and which are bleached at the development temperature of the photothermographic composition.

REFERENCES:
patent: 2411507 (1946-11-01), Collins et al.
patent: 3988156 (1976-10-01), Sturmer
patent: 4088497 (1978-05-01), Brown et al.

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