| http://www.w3.org/ns/prov#value | - The method of printing which comprises applying to a surface having thereon a coating comprising an unfired silicate characterized by high ionizing power a substantially colorless liquid which comprises an oil-soluble, water-insoluble salt wherein the anion is an organic sulfinic acid anion and the cation is a colored dye cation of an arylmethane dye base characterized by a logarithmic dissociatio
|
