A process for printing a substrate comprising applying thereto an ink by means of an ink jet printer, wherein the ink comprises a latex binder, a liquid medium comprising water and organic solvent, and polymer-encapsulated pigment particles comprising a carboxy-functional dispersant crosslinked around a pigment core by a crosslinking agent, wherein the ink has a minimum film-forming temperature below 70° C. Inks are also claimed. The process and inks are useful for printing temperature-sensitive substrates, e.g. foil balloons and wrapping materials for special occasions.
Printing Process
申请人:FUJIFILM IMAGING COLORANTS, INC.
公开号:US20160032118A1
公开(公告)日:2016-02-04
An ink-jet printing process where the ink is printed onto a substrate using an ink jet printer with an ink re-circulating print-head and where the ink comprises: (a) 0.1 to 10 parts of a self-dispersible pigment; (b) 1 to 20 parts of a latex binder; (c) 5 to 15 parts of one or more polar organic solvent(s) with a solubility parameter at 25° C. greater than 27.5; (d) 0.1 to 3 parts of a surfactant; (e) 0.001 to 5 parts of biocide; (f) 0 to 10 parts of a viscosity modifier; (g) 0 to 5 parts of one or more organic solvents with a solubility parameter at 25° C. less than 27.5; (h) 0 to 5 parts of a cross linking agent; (i) the balance to 100 parts water: and where the face plate of the ink re-circulating print-head shows a contact angle with water of less than 90°. Also printed substrates, inks, ink-jet ink containers and ink-jet printers.
Inks
申请人:FUJIFILM IMAGING COLORANTS, INC.
公开号:US20160032119A1
公开(公告)日:2016-02-04
An ink comprising: (a) 0.1 to 10 parts of a self-dispersible pigment; (b) 5 to 15 parts of a polymeric latex binder with a glass transition temperature in the range of from 0° C. to −30° C.; (c) 5 to 15 parts of one or more polar organic solvent(s) with a solubility parameter at 25° C. greater than 27.5; (d) 0 to 3 parts of an acetylenic diol surfactant; (e) 0 to 5 parts of biocide; (f) 0 to 10 parts of a viscosity modifier; (g) 0 to 5 parts of one or more organic solvents with a solubility parameter at 25° C. less than 27.5; (h) 0 to 5 parts of a cross linking agent; and (i) the balance to 100 parts water; wherein the ratio of latex binder to total solvent is in the range of from 1:3 to 3:1. Also ink jet printing processes, ink-jet ink containers, printed substrates and ink-jet printers.