Imaging Science and Photochemistry ›› 2003, Vol. 21 ›› Issue (1): 1-19.DOI: 10.7517/j.issn.1674-0475.2003.01.1

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ADVANCES IN PHOTOTHERMOGRAPHIC IMAGING TECHNOLOGY BASED ON SILVER CARBOXYLATES

David R. Whitcomb   

  1. Eastman Kodak Company, USA
  • Received:2002-09-26 Online:2003-01-23 Published:2003-01-23

Abstract: Significant advances have been made within just the last ten years in the technology of photothermographic imaging materials, particularly those that utilize silver carboxylates as the source of silver for the metallic image. These advances have come about as the result of new commercial product needs that were precipitated by the introduction of the world’s first high-resolution, diagnostic quality, medical x-ray film, Kodak DryView laser imaging film, in 1995. Since then, high contrast graphic arts films, a special offshoot of the same technology, have been introduced. Both applications are sufficiently successful that they are now available from multiple companies. These new products have resulted from a three pronged approach to their development: improved photographic film properties in the imaging layer, higher quality, lower cost laser imaging hardware, and focus of research designed to support this work. Significant achievements can clearly be seen in the form of high-resolution, high D-max, low D-min, and uniform cross film properties, all of which, when combined with image stability exceeding 100 years, re establishes the "old" photothermographic technology as an up to date hardcopy imaging medium.

Key words: photothermography, silver carboxylates, silver behenate, toner, phthalazine

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