Agfa Nv

Agfa Graphics Nv

Unilin Bvba

Jens Lenaerts

Nadine Willems

Johan August Loccufier

Stefaan K De Meutter

Hubertus Van Aert

Lionel Petton

Sonny Wynants

Vincent Courtet

Yiru Li

Tom Cloots

Amandine Ligot

Dieter Jancart

Paul R Callant

Patrick Van Den Bergen

Rita Torfs

Ludovicus H Vervloet

David Tilemans

Tim Desmet

Matthieu Retailleau

Marc Graindourze

Jan Sinnesael

Sophie Lingier

Ineke Van Severen

Aleix Costa

Eugenie Icart

Pantelis Yiannakou

Isabelle Ordonez

Bingyu Yang

Ludovicus Hendrik Vervloet

An aqueous inkjet ink containing a yellow pigment selected from the group consisting of C.I. Pigment Yellow 83, C.I. Pigment Yellow 97, C.I. Pigment Yellow 110, C.I. Pigment Yellow 120, C.I. Pigment Yellow 150, C.I. Pigment Yellow 151, C.I. Pigment Yellow 154, C.I. Pigment Yellow 155, C.I. Pigment Yellow 175, C.I. Pigment Yellow 180, C.I. Pigment Yellow 181, C.I. Pigment Yellow 194, C.I. Pigment Yellow 213, C.I. Pigment Yellow 214 and mixed crystals thereof; a non-ionic polymeric dispersant NID; and an anionic polymeric dispersant ID; wherein the weight ratio R of the anionic polymeric dispersant ID to the non-ionic polymeric dispersant NID is between 0.1 and 1.5.

Aqueous inkjet inks and inkjet printing methods

A radiation curable white inkjet ink including at least 18.5 wt % of white pigment and 0 to 35 wt % of organic solvent, both weight percentages based on the total weight of the radiation curable white inkjet ink and a polymerizable composition containing 0 to 15.0 wt % of one or more polyfunctional polymerizable compounds, and at least 85.0 wt % of one or more monofunctional polymerizable compounds; and a specific polymerizable composition.

Radiation curable inkjet inks

A method for manufacturing decorative surfaces including the steps of inkjet printing an image on a first thermoplastic foil by jetting and curing one or more pigmented free radical curable inkjet inks on the first thermoplastic foil: applying and curing a free radical curable liquid as an adhesive layer on the inkjet printed image: and heat pressing the first thermoplastic foil with a second thermoplastic foil into a decorative laminate: wherein at least one of the first and second thermoplastic foils is a transparent thermoplastic foil: wherein the one or more pigmented free radical curable inkjet inks include a colour pigment and a polymerizable composition containing 10 to 90 wt % of one or more monofunctional polymerizable compounds: and wherein the free radical curable liquid includes a polymerizable composition contains 15 wt % or more of polyfunctional polymerizable compounds and 15 wt % or more of a specific monofunctional polymerizable compound.

Manufacturing methods of decorative surfaces

A combination of: a) piezoelectric through-flow print heads having nozzles with an outer nozzle surface area NS smaller than 500 pm2; and b) aqueous inkjet inks from an aqueous inkjet ink set for manufacturing decorative panels, wherein the aqueous inkjet ink set comprises specific cyan, red, yellow and black aqueous inkjet inks containing water in an amount of A wt % defined by Formula (I): 100 wt %−sqrt(NS)×3.8 wt %/μm≤A wt %≤100 wt %−sqrt(NS)×2.2 wt %/μm wherein the wt % is based on the total weight of the aqueous inkjet ink; wherein sqrt(NS) represents the square root of the outer nozzle surface area NS; and wherein A wt %≥40 wt %.

Aqueous inks for manufacturing decorative panels

A manufacturing method of printed corrugated cardboard comprising the steps of: a) providing a paper liner board () with an ink receiving layer; and b) inkjet printing an image with one or more pigmented aqueous inkjet inks on the ink receiving layer using piezoelectric through-flow print heads () having nozzles with an outer nozzle surface NS smaller than 500 μm2; wherein the one or more pigmented aqueous inkjet inks contain water in an amount of A wt % defined by: wherein the wt % is based on the total weight of the aqueous inkjet ink; wherein sqrt(NS) represents the square root of the outer nozzle surface area NS; and wherein A wt %≥40 wt %.

Manufacturing methods of printed corrugated cardboard

A manufacturing method for decorating natural leather including the steps of: jetting a decorative image with one or more radiation curable inkjet inks on a leather surface; and curing the radiation curable inkjet inks jetted on the leather surface; wherein the one or more radiation curable inkjet inks include a colorant and a polymerizable composition containing 0.5 to 15.0 wt % of one or more polyfunctional polymerizable compounds and at least 85.0 wt % of one or more monofunctional polymerizable compounds with the weight percentages based on the total weight of the polymerizable composition; wherein the one or more radiation curable inkjet inks include 0 to 35.0 wt % of organic solvent; and at least 85.0 wt % of one or more monofunctional polymerizable compounds; and wherein the glass transition temperature of the one or more radiation curable inkjet inks (I) is less than 25° C.

Decorated leather manufacturing

An aqueous inkjet ink set for manufacturing decorative panels comprising: a) a cyan aqueous inkjet ink containing a beta-copper phthalocyanine pigment; b) a red aqueous inkjet ink containing a red pigment R and a polymeric dispersant P; c) a yellow aqueous inkjet ink containing a yellow pigment; and d) a black aqueous inkjet ink containing a carbon black pigment; wherein the red aqueous inkjet ink has a weight ratio R/P of red pigment R to polymeric dispersant P that complies with 1.2<R/P<3.0; and wherein the average particle diameter APD of the red pigment R complies with 175 nm<APD<240 nm, as determined by a dynamic light scattering technique using a laser having an emission wavelength of 633 nm and measured under a scattering angle of 90 degrees.

Aqueous inkjet ink sets

A UV curable pigmented inkjet ink set comprising: one or more achromatic colour inkjet inks including a black inkjet ink containing a carbon black pigment; and five chromatic colour inkjet inks including: a first inkjet ink WR having a hue angle H* between 10° and 40° and a chroma C* between 30 and 80; a second inkjet ink WY having a hue angle H* between 65° and 85° and a chroma C* between 30 and 80; a third inkjet ink Y having a hue angle H* between 85° and 105° and a chroma C* larger than 80; a fourth inkjet ink C having a hue angle H* between 180° and 240° and a chroma C* between 30 and 80; and a fifth inkjet ink M having a hue angle H* between 300° and 360° and a chroma C* between 30 and 80; wherein the hue angle H* and the chroma C* were calculated from CIE L*a*b* coordinates determined on a polyethylene coated white paper for a 2° observer under a D50 light source; wherein the chromatic colour inkjet inks having a hue angle H* between 180° and 360° have a ratio T/P of thioxanthone compound to pigment complying with the relationship: 0.0≤T/P≤0.2, wherein T represents the wt % of thioxanthone compound and P represents the wt % of pigment, both wt % based on the total weight of the inkjet ink.

UV curable inkjet ink sets and inkjet printing methods

A grayscale inkjet printing method including the steps of: a) supplying a pigmented inkjet ink to a grayscale print head having nozzles with an outer nozzle surface area smaller than 500 μmand having an acoustic resonance period ARP of not more than 5.5 μs; and b) applying a voltage wave form for ejecting pigmented inkjet ink from a nozzle of the grayscale print head within one jetting cycle; wherein the pigmented inkjet ink has a viscosity of at least 3.8 mPa·s at jetting temperature and a shear rate of 1,000 s; wherein the voltage wave form for ejecting the largest ink droplet includes, in chronological order, a first ejecting pulse having an amplitude A1 and a second ejecting pulse having an amplitude A3 with the amplitude A1 complying with the relationship: 0.50×A3<A1<1.40×A3; and wherein a time period between the end time of the first ejecting pulse and the end time of the second ejecting pulse defines an idle time period including no other ejecting pulse, the time period having a duration between 1.5 to 2.5 times the acoustic resonance period ARP; and wherein any non-ejecting pulse having an amplitude A2 present during the idle time period complies with the relationship: A2≤0.15×A3. An inkjet printing system is also disclosed.

Inkjet printing methods and inkjet printing systems

A manufacturing method for decorating natural leather including the steps of: jetting a decorative image with one or more radiation curable inkjet inks on a leather surface; and curing the radiation curable inkjet inks jetted on the leather surface; wherein the one or more radiation curable inkjet inks include a colorant and a polymerizable composition containing 0 to 15.0 wt % of one or more polyfunctional polymerizable compounds and at least 85.0 wt % of one or more monofunctional polymerizable compounds with the weight percentages based on the total weight of the polymerizable composition; wherein the one or more radiation curable inkjet inks include 0 to 35.0 wt % of organic solvent; and at least 85.0 wt % of one or more monofunctional polymerizable compounds; and wherein the glass transition temperature of the one or more radiation curable inkjet inks (I) is less than 25° C.; and wherein one of the one or more radiation curable inkjet inks includes a white pigment in an amount of at least 17.5 wt % based on the total weight of the radiation curable inkjet ink.

A pigmented aqueous inkjet ink set for manufacturing decorative panels comprising: a) a cyan aqueous inkjet ink containing a copper phthalocyanine pigment; b) a red aqueous inkjet ink containing a red pigment selected from the group consisting of C.I. Pigment Red 254, C.I. Pigment Red 122, C.I. Pigment Red 176 and mixed crystals thereof; c) a yellow aqueous inkjet ink containing a pigment C.I Pigment Yellow 150 or a mixed crystal thereof; and d) a black aqueous inkjet ink containing a carbon black pigment; wherein the aqueous inkjet inks contain a surfactant. An inkjet printing method for manufacturing decorative panels is also disclosed.

Aqueous inkjet ink sets and inkjet printing methods

A manufacturing method of decorated natural leather including the steps of: attaching a crusted leather () with its corium side by an adhesive () to a temporary carrier (); inkjet printing the crusted leather () on its grain side with one or more pigmented inkjet inks; wherein the surface area of the temporary carrier () is larger than the surface area of the crusted leather ().

Decorated natural leather

A manufacturing method for decorating natural leather with a decorative image includes applying on a crusted leather a base coat containing a pigment for providing a chromatic colour or an achromatic colour different from black, inkjet printing a colour image on the base coat using one or more pigmented UV curable inkjet inks, optionally applying a protective top coat on the image, and optionally applying a heat pressing or embossing step, wherein the chromatic colour or the achromatic colour different from black of the base coat and the inkjet printed colour image are used in combination to provide the decorative image.

Decorating natural leather

A pigmented aqueous inkjet ink set for manufacturing decorative panels includes a cyan aqueous inkjet ink containing a copper phthalocyanine pigment; a red aqueous inkjet ink containing a red pigment selected from the group consisting of C.I. Pigment Red 254, C.I. Pigment Red 122, C.I. Pigment Red 176 and mixed crystals thereof; a yellow aqueous inkjet ink containing a pigment C.I Pigment Yellow 150 or a mixed crystal thereof; and a black aqueous inkjet ink containing a carbon black pigment, wherein the aqueous inkjet inks contain a surfactant. An inkjet printing method for manufacturing decorative panels is also disclosed.

An inkjet printing method for decorative surfaces includes jetting an image on a first thermoplastic foil with one or more pigmented free radical UV curable inkjet inks, at least partially UV curing the jetted image on the first thermoplastic foil, inserting a layer containing a vinylchloride-vinylacetate-vinylalcohol copolymer between a second thermoplastic foil and the first thermoplastic foil with the at least partially UV cured image facing the layer containing the vinylchloride-vinylacetate-vinylalcohol copolymer. At least one of the first and second thermoplastic foils is a transparent thermoplastic foil. The one or more pigmented free radical UV curable inkjet inks contains a polymerizable composition having 30 to 90 wt % of one or more compounds with one ethylenically unsaturated polymerizable group; 10 to 70 wt % of one or more compounds with two ethylenically unsaturated polymerizable groups; and 0 to 10 wt % of one or more compounds with three or more ethylenically unsaturated polymerizable groups.

Growing community of inventors

Mortsel, Belgium

Jens Lenaerts