# US 10,119,041 B2 · UV curable inkjet inks > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,119,041 B2 - Document ID: US10119041B2 - Status: Granted - Kind: B2 - Application number: 15/125,232 - Filed: 2015-04-15 - Published: 2017-04-13 - Granted: 2018-11-06 - Earliest claimed: 2014-04-15 - Assignees: Agfa NV - Applicants: Agfa NV - Inventors: Johan Loccufier; Luc Decoster - Web page: https://patentgrep.com/patent/US10119041B2 ## CPC - C09D 11/101: Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing - B01J 13/06: by phase separation - B01J 13/14: Polymerisation; cross-linking - B01J 13/16: Interfacial polymerisation - B41J 2/01: Ink jet - B41M 7/0081: {using electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams} - B41M 7/009: {using thermal means, e.g. infrared radiation, heat} - C08J 3/241: {Preventing premature crosslinking by physical separation of components, e.g. encapsulation} - C09B 67/0097: {Dye preparations of special physical nature; Tablets, films, extrusion, microcapsules, sheets, pads, bags with dyes} - C09D 11/10: based on artificial resins - C09D 11/102: containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds - C09D 11/104: Polyesters - C09D 11/30: Inkjet printing inks - C09D 11/322: Pigment inks - C09D 11/328: characterised by dyes - C09D 11/38: characterised by non-macromolecular additives other than solvents, pigments or dyes - C09D 175/04: Polyurethanes - C08J 2300/00: Characterised by the use of unspecified polymers - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) - B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS - B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS - B41M: PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, (correction of typographical errors B41J; processes for applying transfer pictures or the like B44C1/16; fluid media for correction of typographical errors by coating C09D10/00; printing textiles D06P) - C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29) - C09B: ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES {, e.g. PIGMENTS}; MORDANTS; LAKES (fermentation or enzyme using processes to synthesise a desired chemical compound C12P) ## Abstract An inkjet printing method includes the steps of: a) jetting on a substrate one or more aqueous UV curable inkjet inks including at least one photoinitiator and capsules composed of a cross-linked polymeric shell surrounding a core, with the core containing UV curable compounds; and b) applying UV radiation to the one or more aqueous UV curable inkjet inks jetted on the substrate. ## Claims ### Claim 1 An inkjet printing method comprising the steps of: jetting one or more aqueous UV curable inkjet inks on a substrate, each of the one or more aqueous UV curable inkjet inks including at least one photoinitiator and capsules including a cross-linked polymeric shell surrounding a core that includes a UV curable compound; applying UV radiation to the one or more aqueous UV curable inkjet inks jetted on the substrate; and exposing the one or more aqueous UV curable inkjet inks to infrared radiation between the step of jetting and the step of applying UV radiation; wherein the UV radiation is emitted by UV LEDs; and the infrared radiation is emitted by a Near InfraRed radiation source having an emission maximum between (0.8 μm and 1.5 μm or a Carbon InfraRed radiation source having an emission maximum between 2.0 μm and 3.5 μm. ### Claim 2 (depends on 1) The inkjet printing method according to claim 1, wherein the emission maximum is between 0.8 μm and 1.5 μm. ### Claim 3 (depends on 1) The inkjet printing method according to claim 1, wherein the emission maximum is between 2.0 μm and 3.5 μm. ### Claim 4 (depends on 1) The inkjet printing method according to claim 1, wherein the UV radiation causes the UV curable compound to pass through the cross-linked polymeric shell. ### Claim 5 (depends on 1) The inkjet printing method according to claim 1, wherein the capsules include a colorant. ### Claim 6 (depends on 1) The inkjet printing method according to claim 1, wherein the capsules are dispersed in an aqueous medium using a dispersing group covalently bonded to the cross-linked polymeric shell, and the dispersing group is selected from the group consisting of a carboxylic acid or salt thereof, a sulfonic acid or salt thereof, a phosphoric acid ester or salt thereof, a phosphonic acid or salt thereof, an ammonium group, a sulfonium group, and a phosphonium group. ### Claim 7 (depends on 1) The inkjet printing method according to claim 1, wherein the one or more aqueous UV curable inkjet inks include an optothermal converting agent for infrared radiation. ### Claim 8 (depends on 1) The inkjet printing method according to claim 1, wherein the at least one photoinitiator is present in the core of the capsules. ### Claim 9 (depends on 1) The inkjet printing method according to claim 1, wherein the one or more aqueous UV curable inkjet inks include polymeric latex particles. ### Claim 10 An inkjet printing device comprising: an inkjet print head; an infrared radiation source located downstream of the inkjet print head; and a UV curing device located downstream of the infrared radiation source; wherein the infrared radiation source exposes one or more aqueous UV curable inkjet inks jetted by the inkjet print head to infrared radiation; the UV curing device includes UV LEDs that emit UV radiation having a wavelength larger than 360 nm; and the infrared radiation is emitted by a Near infraRed radiation source having an emission maximum between 0.8 μm and 1.5 μm or a Carbon infraRed radiation source having an emission maximum between 2.0 μm and 3.5 μm. ### Claim 11 (depends on 10) The inkjet printing device according to claim 10, further comprising a pre-heating device located upstream of the inkjet print head. ### Claim 12 (depends on 10) A manufacturing line for printed textiles and leather articles comprising: the inkjet printing device according to claim 10 to print on a textile or a leather substrate; wherein the leather substrate includes natural leather and artificial leather. ### Claim 13 (depends on 10) A manufacturing line for packaging of foodstuffs or pharmaceuticals comprising: the inkjet printing device according to claim 10 to print on a packaging substrate.