Thermal transfer printing process using a mixture of reducing ag

Details Thermal transfer printing process using a mixture of reducing ag Thermal transfer printing process using a mixture of reducing ag

1996-03-19

1997-05-06

Chea, Thorl

Radiation imagery chemistry: process, composition, or product th

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

Imagewise heating, element or image receiving layers...

430201, 430203, 430350, 430964, G03C 800

Patent

active

056270089

ABSTRACT:
The present invention provides a donor for use in thermal transfer printing. The donor element comprises on a support a donor layer comprising a binder and a mixture of at least two thermotransferable reducing agents capable of reducing a silver source to metallic silver upon heating. The donor element is image-wise heated while being in contact with an image receiving material comprising a thermoreducible silver source. By using a mixture of reducing agents crystallization is reduced and the obtained images exhibit an increased density and a more neutral grey hue.

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