Method for the formation of a heat mode image

Details Method for the formation of a heat mode image Method for the formation of a heat mode image

1996-06-19

1997-05-13

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Imagewise heating, element or image receiving layers...

430200, 430964, 430950, G03C 810, G03C 808

Patent

active

056291302

ABSTRACT:
A new method is disclosed for the formation of a heat mode image comprising exposing to a heat pattern a donor element comprising a reactant (A) while in contact with an acceptor element comprising a reactant (B), the said reactant (A) being transferred by said exposure from said donor element to said acceptor element to form an image therein by reaction of said reactant (A) with said reactant (B), (2) separating said donor and said acceptor element from each other, and (3) optionally giving said acceptor element a post-treatment consisting of a supply of extra energy, characterized in that the said acceptor element comprises spacing particles also containing a said reactant (B), and/or the said donor element comprises spacing particles also containing a said reactant (A), or a said reactant (B), or a density providing compound, preferably carbon black, or combinations thereof.
In the preferred embodiment reactant (A) is a reducing agent and reactant (B) is an organic silver salt, preferably silver behenate. In this case a heat post-treatment on the separated acceptor is performed.
The heat pattern is preferably generated by laser exposure.

REFERENCES:
patent: 4772582 (1988-09-01), DeBoer
patent: 5240900 (1993-08-01), Burberry
patent: 5254524 (1993-10-01), Guittard et al.
patent: 5334575 (1994-08-01), Noonan et al.
patent: 5547809 (1996-08-01), Defieuw et al.

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