PIGMENTED INKJET INK WITH HIGH ACID NUMBER ACRYLIC RESIN

• Main Authors: WENG, Wei, DENG, Godwin, ZHU, Linfang, XIAO, Fengfei
• Format: Patent
• Language: English; French
• Published: 31.03.2022
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; CORRECTION OF TYPOGRAPHICAL ERRORS; DYES; FILLING PASTES; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; INKS; 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; SELECTIVE PRINTING MECHANISMS; STAMPS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

This specification discloses non-aqueous solvent, pigmented ink formulations that are suitable for the electronic and aerospace industries and form printed marks that are resistant to smearing and dissolution by organic solvents commonly used in overcoatings in this industry and others. These ink formulations are based on use of an acidic resin with an inherent acid value of at least about 25 mg KOH/g, preferably at least partially neutralized by a quaternary ammonium hydroxide and/or alcohol amine acid neutralizing or modifying agent. La présente invention concerne un solvant non aqueux, des formulations d'encre pigmentées qui sont appropriées pour les industries électroniques et aérospatiales et forment des marques imprimées qui sont résistantes au maculage et à la dissolution par des solvants organiques couramment utilisés dans des couches de finition dans cette industrie et autres. Ces formulations d'encre sont basées sur l'utilisation d'une résine acide ayant une valeur acide inhérente d'au moins environ 25 mg KOH/g, de préférence au moins partiellement neutralisée par un agent de neutralisation ou de modification d'acide aminé d'ammonium quaternaire et/ou d'amine d'alcool.