Printing ink containing alkyd resin and a mixed hydrocarbon solvent

Claim 1

A PRINTING INK COMPRISING AS ESSENTIAL INGREDIENTS AN ORGANIC LIQUID CARRIER WHICH IS SUBSTANTIALLY NON-VOLATILE AT NORMAL PRESS ROOM TEMPERATURES, A LINSEED-OIL-EXTENTED ROSIN-MODIFIED MALEIC GLYCEROL ALKYD RESINOUS BINDER AND A PIGMENT, SAID LIQUID CARRIER CONSISTING OF A MIXTURE OF A PARAFFIN HYDROCARBON LIQUID WHICH IS A NON-SOLVENT FOR SAID RESINOUS BINDER AND A WITH AN AROMATIC HYDROCARBON LIQUID WHICH IS AT LEAST AS VOLATILE AS SAID PARAFFIN HYDROCARBON LIQUID, IS MISCIBLE WITH SAID PARAFFIN HYDROCARBON LIQUID AND WHICH IS ITSELF A SOLVENT FOR SAID RESINOUS BINDER, THE AMOUNT OF SAID LIQUID CARRIER BEING WITHIN THE RANGE OF 50-60 PER CENT OF THE TOTAL OF SAID LIQUID CARRIER PLUS SAID RESINOUS BINDER AND THE AMOUNT OF SAID AROMATIC HYDROCARBON BEING SUFFICIENT TO MAINTAIN SAID RESINOUS BINDER IN SOLUTION AND TO PROVIDE A RESINOUS BINDERLIQUID CARRIER VARNISH HAVING A VISCOSITY WITHIN THE RANGE OF 1100-6000 CENTIPOISES AT 27* C., SAID PARAFFIN HYDROCARBON LIQUID COMPRISING AT LEAST THE MAJOR PROPORATION OF SAID LIQUID CARRIER.