This application relates to an ink composition, in particular an ink composition for use in continuous inkjet printing. The ink composition for use in continuous inkjet printing, contains a siloxane surfactant and a metal conductivity salt. The ink composition is suitable for producing printed images with good adhesion to low surface energy substrates, in particular, low energy substrates such as polypropylene, LDPE and HDPE. The ink composition has a liquid carrier, a colourant, a siloxane surfactant and a metal conductivity salt. The siloxane surfactant is present in an amount greater than 0.1% by weight of the ink composition.

This application relates to an ink composition, in particular an ink composition for use in continuous inkjet printing. The ink composition for use in continuous inkjet printing, contains a siloxane surfactant and a metal conductivity salt. The ink composition is suitable for producing printed images with good adhesion to low surface energy substrates, in particular, low energy substrates such as polypropylene, LDPE and HDPE. The ink composition has a liquid carrier, a colourant, a siloxane surfactant and a metal conductivity salt. The siloxane surfactant is present in an amount greater than 0.1% by weight of the ink composition.

An ink jet ink composition is a water-based ink jet ink composition and includes a vegetable black-derived colorant, a lignosulfonate salt, and an element A which includes at least one selected from the group consisting of Ca, Mg, Mn, Fe, Al, Si, Cr, Ni, Sr, and Ba, and a content of the element A with respect to a total mass of the ink composition is 50 to 1,700 mass ppm.

A system for applying a coating composition to a substrate utilizing a high transfer efficiency applicator is provided herein. The system includes a high transfer efficiency applicator defining a nozzle orifice. The coating composition comprises a carrier and a binder. The coating composition has a viscosity of from about 0.002 Pa*s to about 0.2 Pa*s, a density of from about 838 kg/m3 to about 1557 kg/m3, a surface tension of from about 0.015 N/m to about 0.05 N/m, and a relaxation time of from about 0.0005 s to about 0.02 s. The high transfer efficiency applicator is configured to expel the coating composition through the nozzle orifice to the substrate to form a coating layer. At least 80% of the droplets of the coating composition expelled from the high transfer efficiency applicator contact the substrate.

A system for applying a coating composition to a substrate utilizing a high transfer efficiency applicator is provided herein. The system includes a high transfer efficiency applicator defining a nozzle orifice. The coating composition comprises a carrier and a binder. The coating composition has a viscosity of from about 0.002 Pa*s to about 0.2 Pa*s, a density of from about 838 kg/m3 to about 1557 kg/m3, a surface tension of from about 0.015 N/m to about 0.05 N/m, and a relaxation time of from about 0.0005 s to about 0.02 s. The high transfer efficiency applicator is configured to expel the coating composition through the nozzle orifice to the substrate to form a coating layer. At least 80% of the droplets of the coating composition expelled from the high transfer efficiency applicator contact the substrate.

A system for applying a first, a second, and a third coating composition. The system includes a first high transfer efficiency applicator defining a first nozzle orifice. The system further includes a second high transfer efficiency applicator defining a second nozzle orifice. The system further includes a third high transfer efficiency applicator defining a third nozzle orifice. The system further includes a substrate defining a target area. The first, the second, and the third high transfer efficiency applicators are configured to expel the first coating composition through the first nozzle orifice to the target area of the substrate, through the second nozzle orifice to the target area of the substrate, and through the third nozzle orifice to the target area of the substrate.

A system for applying a first, a second, and a third coating composition. The system includes a first high transfer efficiency applicator defining a first nozzle orifice. The system further includes a second high transfer efficiency applicator defining a second nozzle orifice. The system further includes a third high transfer efficiency applicator defining a third nozzle orifice. The system further includes a substrate defining a target area. The first, the second, and the third high transfer efficiency applicators are configured to expel the first coating composition through the first nozzle orifice to the target area of the substrate, through the second nozzle orifice to the target area of the substrate, and through the third nozzle orifice to the target area of the substrate.

The present invention provides a water-based black ink, utilizing biochar as the black pigment. The black inks of the invention contain high bio-renewable carbon content (BRC), preferably 100% BRC. The inks exhibit the physical properties required to perform according to the requirements of rotogravure and flexographic printing.

The present invention provides a water-based black ink, utilizing biochar as the black pigment. The black inks of the invention contain high bio-renewable carbon content (BRC), preferably 100% BRC. The inks exhibit the physical properties required to perform according to the requirements of rotogravure and flexographic printing.

A system for applying a first and a second coating composition is provided herein. The system includes a first high transfer efficiency applicator defining a first nozzle orifice and a second high transfer efficiency applicator defining a second nozzle orifice. The system further includes a first reservoir a second reservoir. The system further includes a substrate defining a first target area and a second target area. The first high transfer efficiency applicator is configured to receive the first coating composition from the first reservoir and configured to expel the first coating composition through the first nozzle orifice to the first target area of the substrate. The second high transfer efficiency applicator is configured to receive the second coating composition from the second reservoir and configured to expel the second coating composition through the second nozzle orifice to the second target area of the substrate.