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