Submitted to: European Symposium on Industrial Crops and Products
Publication Type: Abstract Only
Publication Acceptance Date: 3/25/1999
Publication Date: N/A
Technical Abstract: The goal of this research was to formulate sheetfed and heatset inks in the absence of volatile organic chemicals (VOC). Heat polymerized vegetable oil was mixed with monoester of an unsaturated fatty acid or a blend of unsaturated fatty acid monoesters. In the formulation of the vehicle, unmodified vegetable oil was used as a third component. Esters were incorporated at a relatively low level, that is on the order of about 0.5- 3.0% by weight of the vehicle. Heat polymerized and unmodified oil constitutes the major fraction of the vehicle, and thereby primarily is responsible for the rheological properties of the formulated ink. Inks were tested for the physical properties (i.e., viscosity, tack, drying time, printability) and the results were comparable to conventional inks. Comparison of VOC tests showed that these inks have lower VOC values than commercial sheetfed and heatset inks. U.S. Patent (5,713,990) has been granted for these ink vehicles and formulations, and technology transfer activities are continuing.