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Structure/Activity Relationship of Post-Chelating Azo Dyes in Thermal Dye Transfer Printing System

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In dye diffusion thermal transfer printing, there has been two major issues on image preservation. One has been the deterioration of image quality resulting from the bleeding and migration of transferred dyes, and the other has been the poor light stability of the dyes.

To counteract these issues, we have developed a new concept with new azo dyes having certain moieties and transition metal ion providing compounds. The moieties make dyes possible to react with metal ions to form metal-dye complexes. The complexes have high molecular weight to lower the transferability greatly. It makes the images stronger against bleeding, heat-migration, smearing by finger printing, and so on. The transition metal makes dyes stronger against light-induced decomposition. As a resut, the images are resistive to post-printing thermal diffusion and, in addition, possess good light stability.
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Document Type: Research Article

Publication date: 1998-01-01

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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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