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Metallic Donor for Direct Digital Halftone Proofing

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A continuing trend in the printing industry is the increased use of specialty inks, not the least of which are the metallics. To achieve the desired specular reflection characteristics, metal flake pigments are used in the ink formulation. In order to provide a reasonable match to the expected printed product, a direct digital halftone color proofing was developed utilizing the same metal flake pigments as are used in typical lithographic inks. The use of non-volatile pigments necessitates the use of bulk transfer donor architecture. A two-layer film structure was developed wherein a metal flake pigment containing layer overlies an IR radiation sensitive propellant layer. Gasification of the propellant layer upon exposure by an 830 nm laser diode array provides the motive force to transfer the pigment layer from the donor to a receiver. Donor structure options, imaging mechanism sensitivities, and salient material properties are discussed.
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Document Type: Research Article

Publication date: 2002-01-01

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  • 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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