Candidate: Veronika Lovell

Degree of: Doctor of Philosophy

Department: Paper Engineering, Chemical Engineering, and Imaging

Title: Deep Look into Ink Jet Printing—Recent Technologies, Novel Ink Formulations, Performance, Requirements, and Expectations

Committee: Dr. Paul D. Fleming III , Chair
Dr.Alexandra Pekarovicova
Dr. Margaret Joyce
Dr. Valery Blyzniuk

Date: Thursday, May 25, 2006 2:00 p.m. – 4:00 p.m.
CEAS B-231

Abstract: Undoubtedly, within the last couple of decades, the progress in non impact printing technologies has grown to an enormous level. In order to keep the development of this non impact printing method to grow even more, technicians, researchers and educators must continue in conducting investigation and provoking new ideas and questions that will lead to new outcomes and expansion of ink jet printing.

In this work, a broader area that comprises the ink jet inks, substrates and digital reproduction of prints is discussed. The first part discusses the role of pigmented inks versus dye based inks and their color and lightfastness performance when used in ink jet printing process.

The next topic talks about production of novel hot melt inks for creation of three dimensional structures. The ability to form a raised image in a desktop printer and print it on-demand makes possible the use of these materials in fine art work, e.g. children's books with raised images, business cards, postcards, and special type printing processes. Another approach being, if the raised image attains the required height and firmness, it could be utilized in printing Braille characters, using inkjet printer and ink.

The last study includes a comprehensive look into ink – substrate combinations. The output should be evaluated in terms of overall printer capability, not only in terms of a substrate quality (price, grade, optical and physical properties), the type of ink set, and the basic level of color reproduction (density, Lab values). All these should be taken into consideration together with other very important factors, such as the length of time required for colors to stabilize, the image permanence of the printout, and the ink levels in terms of color gamut with which a wide range of media can be characterized.

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