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Photography via Photoacid Generation and Amplification

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Newly discovered principles of sensitized and super-sensitized photoacid generation from iodonium salts in polymeric films coupled with advances in acid amplification are combined with indicator dye technology and fixing mechanisms to provide a silverless photographic process. This new, single-sheet, negative-working medium is imaged with light and developed and fixed by heating, with no washing, waste, or additional chemicals. In trichrome films with good pre-exposure shelf-life, optical exposure to Dmax requires on the order of 10 mJ/cm2 in the red, 5 mJ/cm2 in the green, 1 mJ/cm2 in the blue, and 0.5 mJ/cm2 in the near- UV. This is too slow for image capture, but already sufficient for many analog and digital printing applications. The intrinsic resolution of the medium permits full-color pixels less than 10 microns in diameter, with continuously variable levels of gray for each pixel.

Document Type: Research Article

Publication date: 2002-01-01

More about this publication?
  • For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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