Arthur Y. Jones

The Inter-Relationship Between Paper Structure and Print Quality in Ink Jet Printing

This article describes a print quality evaluation of laboratory designed ink jet papers prepared on a dynamic former. A comparison with various plain and coated papers serves to illustrate the potential opportunity for papermakers to exploit novel types of paper structures in the future. The article will also briefly focus on some of the fundamental issues and key paper properties which perturb print quality and govern the capillary absorption of aqueous inks.

Bulk conductivity measurement of paper by a new insitu pressure cell

In this report a new bulk conductivity cell design is described which can be used to characterize both conductivized and nonconductive paper. By the use of optically flat stainless steel electrodes under a pressure of 115 bars during the conductivity measurement, it is shown that the contact resistance between the paper sample and the electrodes is reduced to negligible proportions. The effect of paper surface morphology on the contact resistance during the measurement of bulk conductivity was studied by a comparison between the polished stainless steel electrodes and electrodes composed of liquid Galium Indium, which make intimate contact with the paper surface. Bulk conductivity measurements were determined for paper samples having different basis weights and different degrees of calendering. The results obtained with the pressurized stainless steel electrodes for these paper samples indicate that the contact resistance is essentially eliminated for all the papers studied by using an applied pressure of...