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Highly Concentrated Pastes of Nano-Sized Metal Particles for Ink Jet Printing

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Preparation and utilization of nano-sized metal particles are of interest in a variety of fields including electronics, optics, catalysts and colorants. In order to utilize the nano-sized particles industrially, mass production of stable and highly concentrated dispersion is necessary. We have developed a novel method to produce such dispersions of nano-sized metal particles having 2 – 50 nm diameter. The method consists of colloidal stabilization by specially designed block copolymer and reduction of metal ions under presence of alkanol amine.

Up to now we have succeeded to prepare the colloidal pastes of Ag, Au, Pt, Pd, Ni, Bi and Au/Ag alloy with metal concentrations of more than 30% in a variety of solvents such as water, alcohols, esters, ketones and aromatic hydrocarbons.

These colloidal pastes are applicable to Ink Jet Printing owing to their excellent stability and nano-sized diameter. Printed patterns exhibits metal like appearance, electroconductivity, clear red and yellow colors and catalytic activity depending on species and concentration of the metal.
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Document Type: Research Article

Publication date: 2003-01-01

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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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