The Water Resistance of Aqueous Ink Jet Graphics and Factors Pertaining to Media Design
Abstract:In the realm of aqueous ink jet media the inherent differences between porous and polymeric, or “dense”, media is well studied and documented. Features of both media types pertaining to ink compatibility, drying time of aqueous inks and image stability have been investigated. Another inherent difference between the two media types is the degree of water resistance each imparts to an image composed of water-soluble dyes. Literature provides evidence that porous media formulations can provide better water resistance to water-soluble dyes than media formulations comprising solely of water-soluble polymers. This paper presents further studies with an objective of explaining the properties that porous coatings have, that provide the better water resistance. Moreover, it is demonstrated how these properties can be engineered into polymer design. By choosing polymer components that influence the polymeric infrastructure it is possible to create a hydrophilic polymer that forms a water insoluble film. This is shown to impart water resistance to water-soluble dyes. It is believed that this new technology challenges previous notions that a hydrophilic/hydrophobic balance is necessary for ink sorption/water resistance. Consequently, the system does not require the use of external cross linkers, a method employed to create such a balance in water-soluble films
Document Type: Research Article
Publication date: 2005-01-01
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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