Dye Recognition in Ink Jet Photopapers
In order to achieve AgX levels of performance an ideal environment must be created in the coating, such that the dye can be fixed and also protected from the environmental fading mechanisms. The design of dyes for specific environments was a key feature of textile dye development. By changing the pigments, binders and additives in the coating, the image stability for dye-based ink systems, can be greatly influenced.
Most of the water-based inks contain anionic dyes, which are most effectively fixed by a highly cationic surface coating. In addition, further interactions can take place via hydrogen bonding, dipole/dipole, Van der Waals etc. By careful selection of the optimum environment for the dyes, the image properties can be significantly influenced.
The development of new dye structures and the optimisation of the media for these can produce a very durable image. Indeed there are some good examples, in the latest photoprinters, where the OEMs have achieved excellent image stability by developing the ink and photopaper in combination.
Document Type: Research Article
Publication date: January 1, 2003
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.
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