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Gelatine and Dye Fixation

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The design of a receptive coating for ink jet printing is highly demanding. Many parameters concerning quality of the print, dry time of the ink and light stability have to be taken into account. Most of the parameters are not independent, but influence each other. One of these important factors is dye fixation. Ingredients, which improve dye fixation often affect light stability and image quality as well. The dye fixation of pure gelatine coatings for ink jet purposes has been investigated. We measured dye fixation of different gelatine types. Acid processed and alkaline processed as well as a chemically modified type have been compared in a standard test. Remarkable differences have been observed. Dye fixation for the acid processed type is much better than for the two other gelatine types, which we have investigated. We also detected a dependence of dye fixation on the pH of the coating solution. Regarding this parameter dye fixation is better for pH 5 than for pH 8. These results have been assigned to the different IEP of the various types. The dye fixation has been compared to a commercially available, high quality, non gelatine ink jet paper. It was found that dye fixing ability of the acid processed type is in the same range than for the commercial paper.
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Document Type: Research Article

Publication date: January 1, 2003

More about this publication?
  • 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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