HIGH SPEED PRINTABLE CARBON INK

• Main Authors: OLDENZIJL, Rudolf, VAN DER MEULEN, Inge
• Format: Patent
• Language: English; French
• Published: 18.11.2021
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CABLES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; CORRECTING FLUIDS; DYES; ELECTRICITY; FILLING PASTES; INKS; INSULATORS; LINING MACHINES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PRINTING; PRINTING MACHINES OR PRESSES; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; STAMPS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TYPEWRITERS; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS THEREFOR; WOODSTAINS

The present invention relates to an electrically conductive composition comprising a) a resin selected from nitrocellulose, chlorinated polyester, chlorinated polyether, chlorinated polyvinyl, chlorinated polyacetate and mixtures thereof; b) electrically conductive particles comprising graphite and carbon black, wherein ratio of said graphite and said carbon black is from 1:1 to 5:1; and c) a solvent, where in ratio of said electrically conductive particles and said resin is from 0.20:1 to 4:1. The compositions according to the present invention can be used in high-speed printing techniques such as flexography and rotogravure printing. La présente invention concerne une composition électriquement conductrice comprenant a) une résine choisie parmi la nitrocellulose, le polyester chloré, le polyéther chloré, le polyvinyle chloré, le polyacétate chloré et des mélanges de ceux-ci ; b) des particules électriquement conductrices comprenant du graphite et du noir de carbone, le rapport dudit graphite et dudit noir de carbone étant de 1 : 1 à 5 : 1 ; et c) un solvant, le rapport desdites particules électriquement conductrices et de ladite résine étant de 0,20 : 1 à 4 : 1. Les compositions selon la présente invention peuvent être utilisées dans des techniques d'impression à grande vitesse telles que la flexographie et l'impression par rotogravure.