Heat development image forming method

Details Heat development image forming method Heat development image forming method

1988-04-08

1989-04-11

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Thermographic process

Heat applied after imaging

430203, G03C 554

Patent

active

048206229

ABSTRACT:
An image is formed by imagewise exposing a heat-developable photosensitive material comprising (a) a photosensitive silver halide, (b) a reducing agent or a precursor thereof, (c) a dye-providing substance which forms or releases a diffusible dye in proportion or counter-proportion to the reduction of the silver halide into silver, and (d) a binder on a support, during or after the imagewise exposure of the photosensitive material, maintaining the photosensitive material in such a pH and a temperature lower than the heat-developing temperature for a predetermined time that the reaction between the silver halide and the reducing agent preferentially takes place rather than the reaction of forming or releasing a diffusible dye, and thereafter heat developing the exposed material in the presence of a base and/or a base precursor to imagewise produce a diffusible dye.

REFERENCES:
patent: 4500626 (1985-02-01), Naito et al.
patent: 4740446 (1988-04-01), Schranz et al.

Affiliated with

Also associated with

Rating

Heat development image forming method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heat development image forming method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat development image forming method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-666771