Yumeizhi Jia

Date of Award


Degree Name

Master of Science


Chemical and Paper Engineering

First Advisor

Dr. Alexandra Pekarovicova

Second Advisor

Dr. Paul D. Fleming

Third Advisor

Dr. Margaret Joyce

Access Setting

Masters Thesis-Open Access


Currently, inkjet printing techniques are getting more attention. They have the features of non-contact and additive patterning feasibility, compatibility with different substrates (the materials on which the ink is printed), low temperature processing, and low cost (1) (2). They can be used for patterning solution processable polymers or nanoparticle inks on various substrates including conductive materials, paper and glass (3). The need for proper functional inks is increasing every year. The goal of my work was to formulate a phthalocyanine water based ink, which can work as a dielectric ink. In my research, all the materials which were used to make these inks are low cost materials. Different water based dye ink formulations made of phthalocyanine blue were examined for suitability for inkjet printing insulating or dielectric layers. In this process, the Z number was used to predict jettability. When the Z number is in the range 2≦Z≦14 ink formulations are considered to be suitable for ink jetting. In order to make the Z number in a suitable range, isopropyl alcohol (IPA), ethylene glycol (EG) and water-based inkjet resins (Joncryl J678 or Joncryl J682) were added to the dye with the aim to adjust the surface tension, viscosity and abrasion resistance of the formulated inkjet inks.