METHOD AND INK SET FOR INKJET PRINTING

• Main Authors: BAGNER DARRELL EUGENE, OWEN MICHAEL EDWARD, PUTNAM DAVID D, GRIFFIN TODD R, SOWINSKI, ANDREW, F, LUSSIER BARBARA BARBARA
• Format: Patent
• Language: Chinese; English
• Published: 15.04.2022
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COLOUR PRINTING; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; LINING MACHINES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PRINTING; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; STAMPS; TRANSPORTING; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

The present invention relates to a process with which one or more aqueous pigment-based inks can be used for inkjet printing of various substrates, including flexible substrates, each having 75-95% by weight, a) one or more pigment colorants, and b) one or more water-miscible humectants, the present invention relates to a composition comprising at least two hydroxyl groups present in a total amount of at least 1 wt% and up to and including 20 wt% and consisting essentially of compounds wherein each compound has a ratio of carbon atoms to oxygen atoms of at least 1.0: 1.0 and only two hydroxyl groups. The weight% amount of water and b) water-miscible humectant is based on the total weight of each aqueous pigment-based ink. The aqueous pigment-based inks may be provided in an ink set and may be used alone or in combination to provide single or multi-color inkjet printed images on a variety of ink-absorbing media and use a variety of inkjet printing apparatuses and methods, including continuous inkjet printing m