Printing inks and vehicles therefor

Claim 2

A PRINTISNG INK CONSISTING ESSENTIALLY OF A SOLVENTSOLUBLE, THERMOPLASTIC, VEHICLE BINDER CONSISTING ESSENTIALLY OF A THERMOPLASTIC, AROMATIC MONOSULFONAMIDEFORMALDEHYDE RESIN SUBSTANTIALLY COMPLETELY CO-CONDENSED WITH A THERMOSETTING RESIN CONDENSATION PRODUCT OF FORMALDEHYDE AND AN AMIDE HAVING AT LEAST TWO FUNCTIONAL AMIDE GROUPS OF WHICH AT LEAST ONE IS NH2 SAID RESINS BEING CO-CONDENSED IN A RATIO BETWEEN ABOUT 9:1 AND 1:1, AN ORGANIC SOLVENT FOR SAID BINDER HAVING A VAPOR PRESSURE LESS THAN 1MM. OF MERCURY AT 20*C., AND AN INSOLUBLE ORGANIC FLUORESCENT PIGMENT SUSPENDED IN THE SOLUTION OF BINDER AND SOLVENT.

Claim 3

A PRISNTING INK CONSISTING ESSENTIALLY OF A SOLVENTSOLUBLE, THERMOPLASTIC, VEHICLE BINDER CONSISTING ESSENTIALLY OF A THERMOPLASTIC, AROMATIC MONOSULFONAMIDEFORMALDEHYDE RESIN SUBSTANTIALLY COMPLETELY CO-CONDENSED WITH A THERMOSETTING RESIN CONDENSATION PRODUCT OF FORMALDEHYDE AND AN AMIDE HAVING AT LEAST TWO FUNCTIONAL AMIDE GROUPS OF WHICH AT LEAST ONE IS NH2, SAID RESINS BEING CO-CONDENSED IN A RATIO IN THE RANGE BETWEEN ABOUT 9:1 AND 1:1, A FLUROESCENT DYE DISPERSED IN SAID COCONDENSATION PRODUCT IN A SOLVATED CONDITION, AN ORGANIC SOLVENT FOR SAID BINDER HAVING A VAPOR PRESSURE LESS THAN 1MM. OF MERCURY AT 20*C., AND A FLUORESCENT PIGMENT SUSPENDED IN THE SOLUTION OF BINDER AND SOLVENT, SAID PIGMENT BEING A FINELY DIVIDED INSOLUBLE METAL RESINATE HAVING ADDITIONAL FLOURESCENT DYE DISPERSED THEREIN IN A SOLVATED CONDITION.

Claim 4

A PRISNTING INK CONSISTING ESSENTIALLY OF A SOLVENTSOLUBLE, THERMOPLASTIC, VEHICLE BINDER CONSISTING ESSENTIALLY OF A THERMOPLASTIC, AROMATIC MONOSULFONAMIDEFORMALDEHYDE RESIN SUBSTANTIALLY COMPLETELY CO-CONDENSED WITH A THERMOSETTING RESIN CONDENSATION PRODUCT OF FORMALDEHYDE AND AN AMIDE HAVING AT LEAST TWO FUNCTIONAL AMIDE GROUPS OF WHICH AT LEAST ONE IS NH2, SAID RESINS BEING CO-CONDENSED IN A RATIO IN THE RANGE BETWEEN ABOUT 9:1 AND 1:1, A FLUROESCENT DYE DISPERSED IN SAID COCONDENSATION PRODUCT IN A SOLVATED CONDITION, AN ORGANIC SOLVENT FOR SAID BINDER HAVING A VAPOR PRESSURE LESS THAN 1MM. OF MERCURY AT 20*C., AND A FLUORESCENT PIGMENT SUSPENDED IN THE SOLUTION OF BINDER AND SOLVENT, SAID PIGMENT BEING A FINELY DIVIDED INSOLUBLE METAL RESINATE HAVING ADDITIONAL FLOURESCENT DYE DISPERSED THEREIN IN A SOLVATED CONDITION.