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Reduction of Ozone Fading of Copper Phthalocyanine Dyes by Non-traditional Antiozonants

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Ozone fading of printed images has been an important issue in digital imaging industries. Copper phthalocyanine dyes, widely used in imaging products, are highly susceptible to ozone fading. Mixing of dyes with conventional antiozonants, used in other non-imaging industrial products, is usually not suitable for systems where the dyes are required to be in solution, due to the relatively lower solubility of these antiozonants in aqueous or solvent systems. Some of these efficient antiozonants also react with air, resulting in highly colored compounds, which make them unsuitable for imaging products. The presence of suitable functional groups in the antiozonant molecules can reduce both these problems. The results presented in this paper show that several compounds, which are not used as typical antiozonants, improve ozone stability of copper phthalocyanine dyes to significant extents, with minimal colorimetric shifts. The effects of substituents on these antiozonant molecules and the possible mechanisms of the antiozonant effect are also discussed in this paper.
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Document Type: Research Article

Publication date: 2004-01-01

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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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