Domino Printing Sciences has been granted a patent for ink compositions designed for continuous inkjet printing. The ink contains carbon black, a liquid carrier, and other components to ensure good adhesion to low surface energy substrates like polypropylene. The printed deposit has a surface resistance of at least 2 MO/sq and strong adhesion properties. GlobalData’s report on Domino Printing Sciences gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Domino Printing Sciences, was a key innovation area identified from patents. Domino Printing Sciences's grant share as of February 2024 was 59%. Grant share is based on the ratio of number of grants to total number of patents.

Ink composition for continuous inkjet printing with improved adhesion

Source: United States Patent and Trademark Office (USPTO). Credit: Domino Printing Sciences plc

The granted patent (Publication Number: US11851568B2) discloses an ink composition designed for printing applications. The composition includes a liquid carrier, carbon black, a conductivity salt, and a ketone condensation resin adhesion promoter. The printed deposit of this ink composition exhibits a surface resistance of at least 2 MO/sq after washing and an adhesion of 50% or more after applying and removing adhesive tape.

Furthermore, the ink composition contains less than 1 wt % of cross linkers, with specific exclusions of certain types of crosslinkers like metal crosslinkers, alkoxysilanes, and others. The composition may also include a binder, a tackifier, and a surfactant in specified amounts. The ink composition is suitable for inkjet printing and can be deposited on a substrate, with at least partial evaporation of the liquid carrier. The resulting printed deposit demonstrates excellent adhesion and surface resistance, making it ideal for various printing applications.

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