An inkjet ink set comprising a liquid ink and an over-print varnish composition comprising a latex polymer, a boron-containing compound and water. The liquid ink includes a pigment dispersion, a surfactant, a polyurethane binder, a co-solvent and a balance of water. Also disclosed are and inkjet printing system containing such ink set and the method for printing in such inkjet printing system.

An inkjet ink set comprising a liquid ink and an over-print varnish composition comprising a latex polymer, a boron-containing compound and water. The liquid ink includes a pigment dispersion, a surfactant, a polyurethane binder, a co-solvent and a balance of water. Also disclosed are and inkjet printing system containing such ink set and the method for printing in such inkjet printing system.

The present disclosure relates to methods of printing graphene oxide (GO) and printed GO membranes. An embodiment of the present disclosure includes producing graphene oxide (GO) ink by mixing graphene oxide particles with a solvent. The GO ink can be inserted into a printer and the printer head can expel droplets of GO ink on the substrate. The GO ink can be dried on the substrate and the substrate can then be used for various applications including a medium for filtering water.

The present disclosure relates to methods of printing graphene oxide (GO) and printed GO membranes. An embodiment of the present disclosure includes producing graphene oxide (GO) ink by mixing graphene oxide particles with a solvent. The GO ink can be inserted into a printer and the printer head can expel droplets of GO ink on the substrate. The GO ink can be dried on the substrate and the substrate can then be used for various applications including a medium for filtering water.

A heat-resistant composition including: a binder resin including at least two of a silicone-modified polyester resin, a siloxane compound, or a silanol compound; a pigment including at least two of iron cobalt chromite black spinel (ICCB), copper chromite black spinel (CCB), iron chromite manganese (ICM), or carbon black; and a catalyst.

A heat-resistant composition including: a binder resin including at least two of a silicone-modified polyester resin, a siloxane compound, or a silanol compound; a pigment including at least two of iron cobalt chromite black spinel (ICCB), copper chromite black spinel (CCB), iron chromite manganese (ICM), or carbon black; and a catalyst.

An inkjet printer injects first ink of a plurality of colors and second ink. An extraction condition setter sets an extraction condition to extract a portion of, or an entirety of, ink dots of the first ink of each of the plurality of colors. An extractor extracts an underlying layer dot group from ink dots of the first ink of each of the plurality of colors based on the extraction condition. Such a plurality of underlying layer dot groups and ink dots of the second ink form a first printing layer. An image dot group including at least the ink dots, of the first ink, other than the underlying dot groups forms at least one additional printing layer.

An inkjet printer injects first ink of a plurality of colors and second ink. An extraction condition setter sets an extraction condition to extract a portion of, or an entirety of, ink dots of the first ink of each of the plurality of colors. An extractor extracts an underlying layer dot group from ink dots of the first ink of each of the plurality of colors based on the extraction condition. Such a plurality of underlying layer dot groups and ink dots of the second ink form a first printing layer. An image dot group including at least the ink dots, of the first ink, other than the underlying dot groups forms at least one additional printing layer.

Provided is an ink jet recording method capable of recording an image excellent in color developability while suppressing ink deposition. The ink jet recording method includes ejecting an aqueous ink from an ejection orifice of a recording head based on image data to record an image on a recording medium and ejecting the heated ink to an ink receiving member from the ejection orifice based on preliminary ejection data. The aqueous ink contains a pigment and a resin dispersant for dispersing the pigment and satisfies at least one of requirement (1): the resin dispersant is a water-soluble acrylic resin having an acid value of 135 mgKOH/g or less and requirement (2): the aqueous ink further contains a water-soluble acrylic resin having an acid value of 135 mgKOH/g or less. The pigment is carbon black whose cumulative 50% particle size in volume-based particle size distribution is 80 nm or less.

Provided is an ink jet recording method capable of recording an image excellent in color developability while suppressing ink deposition. The ink jet recording method includes ejecting an aqueous ink from an ejection orifice of a recording head based on image data to record an image on a recording medium and ejecting the heated ink to an ink receiving member from the ejection orifice based on preliminary ejection data. The aqueous ink contains a pigment and a resin dispersant for dispersing the pigment and satisfies at least one of requirement (1): the resin dispersant is a water-soluble acrylic resin having an acid value of 135 mgKOH/g or less and requirement (2): the aqueous ink further contains a water-soluble acrylic resin having an acid value of 135 mgKOH/g or less. The pigment is carbon black whose cumulative 50% particle size in volume-based particle size distribution is 80 nm or less.