Claims
- 1. A thermal imaging process comprising, in order, the steps of:
- a) bringing a donor layer of a donor element into face to face relationship with a receiving layer of a receiving element to obtain an assemblage,
- b) image-wise heating the assemblage, thereby causing image-wise transfer of an amount of a plurality of thermotransferable reducing agents to said receiving element in accordance with the amount of heat supplied,
- c) separating said donor element from said receiving element, and
- d) overall heating said receiving element, wherein
- (i) said donor element comprises on a support (a) a donor layer comprising a binder and a mixture of said plurality of thermotransferable reducing agents which are capable of reducing a silver source to metallic silver upon heating, and (b) on a side of the support opposite a side comprising said donor layer, a heat-resistant backing layer, and
- (ii) said receiving element comprises said receiving layer on a support, said receiving layer comprising a silver source which is capable of being reduced by means of heat in the presence of a reducing agent.
- 2. A thermal imaging process according to claim 1 wherein said overall heating is performed by means of a heated roller.
- 3. A thermal imaging process according to claim 1, wherein the donor element has a thickness between 2 and 30 .mu.m.
Priority Claims (1)
Number |
Date |
Country |
Kind |
94200795 |
Mar 1994 |
EPX |
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Parent Case Info
This application is a continuation of application Ser. No. 08/400,344, filed on Mar. 8, 1995.
US Referenced Citations (9)
Foreign Referenced Citations (2)
Number |
Date |
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246832 |
Sep 1962 |
AUX |
2083726 |
Mar 1982 |
GBX |
Continuations (1)
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Number |
Date |
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Parent |
400344 |
Mar 1995 |
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