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Developing Pigmented Inks for Thermal Ink Jet

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Particulate or pigmented inks for thermal ink jet applications exhibit great print quality, far superior to dye based inks. In this paper, we present concept for the development of kogation-free pigmented inks by imparting polymer latex into ink jet inks. Inks are prepared by the addition of polymer latex, and wherein the polymer latex can act as a stabilizer to improve the stability of pigmented ink. The polymer latex can also function as a binder with carbon black colorant or other color pigments, thereby impart the ink smear resistance, film hardness, and humidity resistance. The addition of polymer latex also develops a list of attributes such as high optical density, good latency, excellent light- and waterfastness, superior black MFLEN, good frequency response, and excellent cool curl and showthrough properties.

Polymer latexes are prepared by emulsion polymerization process. Polymer latexes that are useful in ink jet applications include ionic sulfonate polymer latex, epoxy polymer latex, polymer latex with a high glass transition temperature (Tg), or polymer latex with a nonionic surfactant with an HLB (hydrophilic/lipophilic balance) value from 17.5 to 20.
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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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