Low-friction images by inkjet printing
AssigneeKornit Digital Ltd.
InventorsJacob Mozel, Muhammad Iraqi
Life of this patent
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Abstract
Provided are compositions and processes formulated and practiced to reduce the friction-coefficient of the printed area and also of the non-printed areas around the image, wherein the compositions are formulated for use by wet-on-wet techniques in-line of the pre-curing printing process, without pretreating the fabric for softness and smoothness prior to the printing process. The compositions comprise at least 15% by weight of a friction-coefficient reduction agent and having a pH lower than 6.5 so as to effect upon contact immobilization of an ink composition that is being digitally applied on the substrate.
Claims23
An inkjet ink immobilizing composition, comprising a property-adjusting agent, a friction-coefficient reduction agent and a carrier, wherein said property-adjusting agent is an acid that lowers a pH level at a surface of a substrate thereby effecting immobilization of an ink composition upon contacting said ink composition with the immobilizing composition on said surface, and wherein a said friction-coefficient reduction agent is stable under acidic conditions and soluble in the immobilizing composition at a concentration of at least 15% of the total weight of the composition.
Dependencies are inferred from the claim text.