Patent ID: 8529639
Filing Date: 2013-09-10
Classification: B43K,C09B,C09D,C10L,C10M,C10N

Abstract:
1. A method of coloring a substrate comprising the steps of: dissolving a vegetable oil ester based solvent wherein the ester is selected from a group consisting of esters having carbon chain length of C-1 to C-18 in a liquid solvent dye in which the vegetable oil ester is present in an amount of between about 5 and 80 percent by weight of the dye formulation, and in which sulfur is present, but in an amount of less than 10 ppm by weight; and mixing sufficient amounts of the dye formulation with a substrate selected from the group consisting of transmission fluids, gasoline, heating oil, kerosene, stove oil, #2-cycle oil, diesel fuel, paraffin wax, hydrocarbon based marking inks, wood stain formulations, printing inks, xylene, isooctane and toluene to produce mixtures of predetermined color.