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Alteration of reflection spectra of images from color-formers in a single-sheet thermal imaging system

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In a single-sheet multi-layer thermal imaging system images are formed due to the transformation of colorless crystalline materials to colored amorphous forms, achieved by melting or dissolution in suitable solvents. The reflection spectra of the colored forms in printed images may vary due to the presence of other components, such as thermal solvents, polymeric binders required for imaging, and can cause undesirable color combinations in printed images. Such variations may be the results of aggregation of the colored amorphous forms, or formation of different colored forms from the same colorless crystals due to a change in the mechanism of reaction. Addition of appropriate components to the imaging systems can alter the spectra of the printed images to make them suitable for improved image quality.

Document Type: Research Article

Publication date: January 1, 2009

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  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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