New toning agents for thermographic and photothermographic mater

Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Imagewise heating – element or image receiving layers...

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430203, 430233, 430346, 430353, 430542, 430565, 430616, 430619, 430964, 430965, 503227, 3461351, 544 94, G03C 135, G03C 1498, G03C 173

Patent

active

055996477

ABSTRACT:
Toning agents are provided for use in thermographic and photothermographic materials, either on their own or in combination with at least one other toning agent, with improved compatibility with hydrophobic media as shown by reduced crystallization and reduced diffusion through the material, which properties enabling an improved imaging performance to be achieved and in particular a more neutral image tone after storage.

REFERENCES:
patent: 3885967 (1975-05-01), Sashihara et al.
patent: 3887378 (1975-06-01), Klein et al.
patent: 3951660 (1976-04-01), Hagemann et al.
patent: 5547809 (1996-08-01), Defieuw et al.

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