Abstract 1. AN INK COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF 0.5 TO 7.0% BY WEIGHT OF A WATER-SOLUBLE DIRECT DYE AND 5 TO 40% BY EIGHT OF A HUMECTANT SYSTEM FORMED OF A MIXTURE OF A LOWER ALKOXY TRIGLYCOL AND AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF A POLYETHYLENE GLYCOL HAVING AN AVERAGE MOLECULAR WEIGHT UP TO ABOUT 600, POLYPROPYENE GLYCOL HAVING AN AVERAGE MOLECULAR WEIGHT UP TO AOUT 425, A LOWER ALKYL ETHER OF ETHYLENE GLYCOL AND DITHYLENE GLYCOL, PROPYLENE GLYCOL AND GLYCEROL, WITH THE WEIGHT RATIO OF THE ALKOXY TRIGLYCOL TO SAID COMPOUND BEING WITHIN THE RANGE OF 0.1 TO 3.0, THE INK COPOSITION HAVING A VISCOSITY WITHIN THE RANGE OF 1.0 TO 10 CENTIPOISE AT 25*C. AND A SPECIFIC RESISTIVITY LESS THAN 150 OHM-CM.
Inventors
👤 D Ostergren
👤 D Zabiak
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-25 13:33
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
AN INK COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF 0.5 TO 7.0% BY WEIGHT OF A WATER-SOLUBLE DIRECT DYE AND 5 TO 40% BY EIGHT OF A HUMECTANT SYSTEM FORMED OF A MIXTURE OF A LOWER ALKOXY TRIGLYCOL AND AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF A POLYETHYLENE GLYCOL HAVING AN AVERAGE MOLECULAR WEIGHT UP TO ABOUT 600, POLYPROPYENE GLYCOL HAVING AN AVERAGE MOLECULAR WEIGHT UP TO AOUT 425, A LOWER ALKYL ETHER OF ETHYLENE GLYCOL AND DITHYLENE GLYCOL, PROPYLENE GLYCOL AND GLYCEROL, WITH THE WEIGHT RATIO OF THE ALKOXY TRIGLYCOL TO SAID COMPOUND BEING WITHIN THE RANGE OF 0.1 TO 3.0, THE INK COPOSITION HAVING A VISCOSITY WITHIN THE RANGE OF 1.0 TO 10 CENTIPOISE AT 25*C. AND A SPECIFIC RESISTIVITY LESS THAN 150 OHM-CM.
Claim 2
Dependent Claim
130 words
AN INK COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF 0.5 TO 7.0% BY WEIGHT OF A WATER-SOLUBLE DIRECT DYE AND 5 TO 40% BY EIGHT OF A HUMECTANT SYSTEM FORMED OF A MIXTURE OF A LOWER ALKOXY TRIGLYCOL AND AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF A POLYETHYLENE GLYCOL HAVING AN AVERAGE MOLECULAR WEIGHT UP TO ABOUT 600, POLYPROPYENE GLYCOL HAVING AN AVERAGE MOLECULAR WEIGHT UP TO AOUT 425, A LOWER ALKYL ETHER OF ETHYLENE GLYCOL AND DITHYLENE GLYCOL, PROPYLENE GLYCOL AND GLYCEROL, WITH THE WEIGHT RATIO OF THE ALKOXY TRIGLYCOL TO SAID COMPOUND BEING WITHIN THE RANGE OF 0.1 TO 3.0, THE INK COPOSITION HAVING A VISCOSITY WITHIN THE RANGE OF 1.0 TO 10 CENTIPOISE AT 25*C. AND A SPECIFIC RESISTIVITY LESS THAN 150 OHM-CM.