Ink transfer article for preparation of offset masters and method of making same andcomposition therefor

Claim 1

AN INK TRANSFER ARTICLE ADAPTED FOR PREPARATION OF OFFSET-PRINTING MASTER SHEETS, COMPRISING: A FIBROUS WEB IMPREGNATED WITH A NONVOLATILE, NONDRYING LIQUID VEHICLE CARRYING A DISPERSED PIGMENT, THE PARTICLES OF WHICH HAVE SURFACES TO WHICH IS BONDED A COORDINATION COMPLEX COMPOUND OF THE TYPE IN WHICH A TRIVALENT METAL IS COORDINATED WITH AN ORGANIC ACID THROUGH ITS CARBOXYLIC OXYGEN ATOMS, SAID COMPLEX COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF COORDINATION COMPLEXES (A) OF CHROMIUM AND A FATTY ACID HAVING BETWEEN 10 AND 20 CARBON ATOMS, (B) OF CHROMIUM AND AN ACID IN WHICH THE CARBOXYL RADICAL IS JOINED TO AN ALPHA, BETA-UNSATURATED CARBON CHAIN HAVING BETWEEN 2 AND 6 CARBON ATOMS, AND (C) OF ALUMINUM AND MYRISTIC ACID, WHEREBY SAID COMPLEX-BEARING PIGMENT IN SAID VEHICLE IS ADAPTED TO BE TRANSFERRED BY LOCAL PRESSURE ON SAID FIBROUS WEB TO FORM ON A CONTIGUOUS SURFACE VISIBLE LOCAL DEPOSITS HIGHLY RECEPTIVE TO OFFSET-PRINTING INKS.