Structure/Activity Relationship of Post-Chelating Azo Dyes in Thermal Dye Transfer Printing System
Abstract: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.
Document Type: Research Article
Publication date: 1998-01-01
For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.
Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.
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