An inkjet printing method on a continuous substrate web (100), having a pair of edges (1011, 1021), comprising the steps: a) forming a pair of elongated strips (101, 102) by bending said substrate web (100) along a pair of lines (1010, 1020) wherein each line is parallel to the pair of edges (1011, 1021); and b) supporting said bent substrate web in a support zone (201) of a printer (200) wherein said pair of elongated strips (101, 102) are oriented below said zone (201); and printing an image (500) on said supported substrate web by an inkjet-printhead (202) of said printer (200).
An inkjet printing method on a continuous substrate web (100), having a pair of edges (1011, 1021), comprising the steps: a) forming a pair of elongated strips (101, 102) by bending said substrate web (100) along a pair of lines (1010, 1020) wherein each line is parallel to the pair of edges (1011, 1021); and b) supporting said bent substrate web in a support zone (201) of a printer (200) wherein said pair of elongated strips (101, 102) are oriented towards said zone (201); and printing an image (500) on said supported substrate web by an inkjet-printhead (202) of said printer (200).
A method for decorating an unassembled packaging box (300) comprising the following steps: a) holding by vacuum suction the unassembled packaging box with its side to an air-permeable support (200) onto a vacuum support of an inkjet printer (100); and b) inkjet printing an image on the unassembled packaging box wherein the air-permeable support 200) is partly covered by said unassembled packaging box wherein the air-permeable support (200) comprises a fibrous layer in contact with the side of the unassembled packaging box (300) and wherein the fibrous layer is an unwoven fabric.
A method for manufacturing a decorative surface including staggered decorative laminate panels including the steps of: i) digitally dividing a first master image into decorative laminate panel images forming a non-staggered arrangement; ii) digitally staggering neighbouring decorative laminate panel images over a selected staggering distance having a value between L/2 and L/20 with L representing the length of a decorative laminate panel; iii) digitally composing a second master image from the neighbouring staggered neighbouring decorative laminate panel images; iv) inkjet printing the second master image with one or more inkjet inks on a substrate wherein a decorative board or laminate including the substrate printed with the second master image is cut into the decorative laminate panels following non-staggered vertical cutting lines and horizontal cutting lines.
A method for manufacturing a personalized or customized decorative surface (103) having decorative laminate panels (119) including the steps of: segmenting a digital image of the personalized or customized decorative surface (103) into a plurality of decorative laminate panel images (108), wherein each decorative laminate panel image (108) is sized to fit on a decorative laminate panel (119); assigning a positioning code (109) to a decorative laminate panel image (108) for identifying its position in the digital image of the personalized or customized decorative surface (103); creating a non-staggered digital layout (110) of the plurality of decorative laminate panel images (108); inkjet printing the non-staggered digital layout (110) on a substrate (112); heat pressing the inkjet printed substrate with a protective layer (115) into a decorative laminate (113); dividing the decorative laminate (113) into decorative laminate panels (119), wherein the front side of a decorative laminate panel (119) includes one of the plurality of inkjet printed decorative laminate panel images (108) and the back-side of decorative laminate panel (119) includes the positioning code (109) of the decorative laminate panel image (108) inkjet printed on the front side of the decorative laminate panel (119).
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.
An inkjet printing device (100) comprising a vacuum-belt (400) and vacuum-table (500) which comprises a flat area (550) which is positioned between to a first and second air-groove (530) aligned along the conveying direction wherein the vacuum-belt (400) comprises: a first column of vacuum-belt-air-channels (418) connected to the first air-groove (530); and a second column of vacuum-belt-air- channels (428) connected to the second air-groove (530); and a third column of vacuum-belt-air-channels (438) connected to the flat area (550) by a plurality of air channels formed by a rough layer (420) at the back-side of the vacuum-belt (400) and/or a rough layer (520) on the flat area (550).
An inkjet print device comprising a maintenance device wherein a mesh system; and a waste liquid receiver are mounted. The liquid is applied during maintenance on the top of the mesh system and a waste liquid receiver receives the liquid dripping from the back of the mesh system. The mesh system is characterized by comprising a liquid spreading mesh.
A method for manufacturing decorative laminates including the steps of: a) impregnating a paper substrate with a thermosetting resin by submersion of the paper substrate in a bath of thermosetting resin; b) applying on the thermosetting resin impregnated paper substrate an ink acceptance layer containing an inorganic pigment P and a polymeric binder B having a weight ratio P/B of inorganic pigment to polymeric binder of larger than 1.5; c) jetting on the ink acceptance layer a colour pattern with one or more aqueous pigmented inkjet inks and/or organic solvent based pigmented inkjet inks containing a colour pigment C; and d) heat pressing the thermosetting paper into a decorative laminate, wherein the weight ratio P/C of the inorganic pigment of the ink acceptance layer to the jetted colour pigment in the colour pattern is larger than 4Ø
D21H 27/26 - Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the overlay sheet or the top layers of the structures
B32B 3/06 - Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form characterised by features of form at particular places, e.g. in edge regions for attaching the product to another member, e.g. to a support
B32B 29/00 - Layered products essentially comprising paper or cardboard
B32B 29/06 - Layered products essentially comprising paper or cardboard specially treated, e.g. surfaced, parchmentised
B41M 5/00 - Duplicating or marking methods; Sheet materials for use therein
Method of manufacturing decorative laminates including the steps of a) inkjet printing a first decorative layer (7) by a first multi-pass inkjet printer (13) and delivering the inkjet printed first decorative layer (7) to a laminate heating press (11) where it is heat pressed into a decorative laminate; and b) inkjet printing a second decorative layer (7) by a second multi-pass inkjet printer (13) and delivering the inkjet printed second decorative layer (7) to the same laminate heating press (11) where it is heat pressed into a decorative laminate.
A method of manufacturing a decorative surface including the steps of: a) impregnating (18) a paper substrate with a thermosetting resin; b) jetting (15) a colour pattern with one or more aqueous inkjet inks including a polymer latex binder on the thermosetting resin impregnated paper; c) drying the one or more aqueous inkjet inks; and d) heat pressing the thermosetting paper carrying the colour pattern into a decorative surface.
An inkjet printing method for manufacturing decorative surfaces including the steps of: a) jetting a colour pattern with one or more aqueous inkjet inks including a polymer latex binder on a thermosetting resin impregnated paper; and b) drying the one or more aqueous inkjet inks.
A method for manufacturing decorative surfaces including the steps of: inkjet printing (15) a colour pattern with one or more aqueous inkjet inks including a polyurethane based latex binder; impregnating (18) a paper substrate with a thermosetting resin; and heat pressing (21) the thermosetting resin impregnated paper substrate carrying the inkjet printed colour pattern into a decorative surface.
A method for manufacturing decorative surfaces (34) including the steps of: a) inkjet printing a colour pattern on a paper substrate with one or more aqueous inkjet inks of an aqueous inkjet ink set; and therafter b) impregnating the paper substrate with a thermosetting resin, wherein the aqueous inkjet ink set includes a cyan aqueous inkjet ink containing a copper phthalocyanine pigment; a red aqueous inkjet ink containing a pigment C. Pigment Red 254 or a mixed crystal thereof; a yellow aqueous inkjet ink containing a pigment C.I Pigment Yellow 151 or a mixed crystal thereof; and a black aqueous inkjet ink containing a carbon black pigment; with the proviso that the aqueous inkjet inks do not include a polymer latex binder; and that the paper substrate includes one or more ink receiving layers for improving the image quality of the aqueous inkjet inks jetted thereon.
A radiation curable inkjet ink set including at least a cyan radiation curable inkjet ink, a magenta radiation curable inkjet ink, a yellow radiation curable inkjet ink and a black radiation curable inkjet ink, wherein each of the cyan radiation curable inkjet ink, the magenta radiation curable inkjet ink, the yellow radiation curable inkjet ink and the black radiation curable inkjet ink is a radiation curable composition having a viscosity of no more than 50 mPa.s at 25°C and a shear rate of 90 s-1 contains: a) at least one non-polymerizable, non-polymeric bisacylphosphine oxide present in a concentration of no more than 4.0 wt% based on the total weight of the radiation curable composition; b) at least one monomer comprising at least one vinyl ether group and at least one polymerizable group selected from the group consisting of an acrylate group and a methacrylate group; and c) at least one polymerizable or polymeric thioxanthone, with the proviso that if the at least one polymerizable or polymeric thioxanthone contains no tertiary amine group that the radiation curable composition further includes at least one tertiary amine co-initiator selected from the group consisting of ethylhexyl-4-dimethylaminobenzoate, a polymerizable co-initiator containing a tertiary amine and a polymeric co-initiator containing a tertiary amine.
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
A radiation curable inkjet ink set containing a plurality of inkjet inks having a viscosity of no more than 50 mPa.s at 25°C and a shear rate of 90 s-1 containing: a) at least one non-polymerizable, non-polymeric bisacylphosphine oxide present in a concentration of no more than 4.0 wt% based on the total weight of radiation curable inkjet ink; b) at least one monomer comprising at least one vinyl ether group and at least one polymerizable group selected from the group consisting of an acrylate group and a methacrylate group; and c) at least one polymerizable or polymeric thioxanthone, with the proviso that if the at least one polymerizable or polymeric thioxanthone contains no tertiary amine group that the radiation curable inkjet ink further includes at least one tertiary amine co-initiator selected from the group consisting of ethylhexyl-4-dimethylaminobenzoate and a polymerizable co-initiator containing a tertiary amine.
C09D 11/10 - Printing inks based on artificial resins
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
C09D 11/40 - Ink-sets specially adapted for multi-colour inkjet printing
An inkjet printing method including the steps of: (1) jetting ink dots on a substrate of a plurality of radiation curable inkjet inks having a viscosity of no more than 50 mPa.s at 25°C and a shear rate of 90 s-1, the plurality of radiation curable inkjet inks comprising: a) at least one non-polymerizable, non-polymeric bisacylphosphine oxide present in a concentration of no more than 4.0 wt% based on the total weight of radiation curable inkjet ink; b) at least one monomer comprising at least one vinyl ether group and at least one polymerizable group selected from the group consisting of an acrylate group and a methacrylate group; and c) at least one polymerizable or polymeric thioxanthone, with the proviso that if the at least one polymerizable or polymeric thioxanthone contains no tertiary amine group that the radiation curable composition further includes at least one tertiary amine co-initiator selected from the group consisting of ethylhexyl-4-dimethylaminobenzoate, a polymerizable co-initiator containing a tertiary amine and a polymeric co-initiator containing a tertiary amine; and (2) fully curing the jetted ink dots using one or more UV LEDs.
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
An inkjet printing method including the steps of: a) printing a first print job by jetting a free radical UV curable white inkjet ink from a white ink print head and one or more free radical UV curable colour inkjet inks from one or more other print heads in a UV curable inkjet printer; b) filling the white ink print head in the UV curable inkjet printer with a safeguard liquid including one or more free radical polymerizable monomers; c) printing a second print job employing only the one or more other print heads in the UV curable inkjet printer for jetting one or more free radical UV curable colour inkjet inks; d) replacing the safeguard liquid of the white ink print head in the UV curable inkjet printer by UV curable white inkjet ink; and e) printing a third print job by jetting free radical UV curable white inkjet ink from the white ink print head and jetting one or more free radical UV curable colour inkjet inks from one or more other print heads in the UV curable inkjet printer. Also disclosed is a free radical UV curable inkjet ink set including a free radical UV curable white inkjet ink, one or more free radical UV curable colour inkjet inks and a safeguard liquid, wherein the safeguard liquid includes one or more free radical polymerizable monomers but no photoinitiator.
A maintenance liquid for inkjet printers including at least 50 wt% of at least one ether solvent according to Formula (I) or (II) with the wt% based on the total weight of the maintenance liquid: R1(CO)x(OR2)yOR3 Formula (I) and R4CO(OR5)zOCOR6 Formula (II), wherein, R1, R4 and R6 independently represent an alkyl group having 1 to 4 carbon atoms; R2 rand R5 independently represent an ethylene group or a propylene group; R3 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; x represents an integer of 0 or 1; y and z independently represent an integer of 1 to 4; and wherein the maintenance liquid contains no more than 25 ppm of peroxide expressed as hydrogen peroxide.
A method for inkjet varnishing a substrate including the steps of a) jetting a micro-pattern of a varnish having a viscosity of less than 30 mPa.s at 45°C and at a shear rate of 30 s-1 to a portion of the substrate by one or more printheads having nozzles with a nozzle diameter of no more than 30 µm; and b) curing the micro-pattern within 500 milliseconds after jetting, thereby providing a micro-roughness to the portion of said substrate.
An inkjet ink set consisting of a black inkjet ink, a cyan inkjet ink and two inkjet inks (A) and (B), optionally complemented by a white ink and/or a colourless ink, wherein the inkjet ink (A) has a hue angle H* between 70 and 85 and a chroma C* between 30 and 80; the inkjet ink (B) has a hue angle H* between 20 and 40 and a chroma C* between 30 and 80; and the CIE L* a* b* coordinates were determined on polyethylene coated white paper for a 2° observer under a D50 light source.
A combination of: a) an inkjet print head having a nozzle density of at least 600 dpi and nozzles with an outer nozzle diameter D smaller than 25 µm; and b) a LJV curable inkjet composition containing 0 to 10 wt% of one or more monofunctional monomers and at least A wt% of 2-(2-vinyloxyethoxy)ethyl acrylate, wherein both wt% are based on the total weight of the UV curable inkjet composition; and wherein A is defined by the formula : 100 wt% - D x 3.0 wt%/µm = A = 100 wt% - D x 1.0 wt%/µm. An inkjet printer and an inkjet printing method are also disclosed.
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
23.
CURABLE LIQUIDS AND INKS FOR TOYS AND FOOD PACKAGING APPLICATIONS
A free radical curable liquid for inkjet printing of food packaging materials comprising no initiator or otherwise one or more initiators selected from the group consisting of non-polymeric di- or multifunctional initiators, oligomeric initiators, polymeric initiators and polymerizable initiators; wherein the polymerizable composition of said liquid consists essentially of: a) 25 - 100 wt% of one or more polymerizable compounds A having at least one acrylate group G1 and at least one second ethylenically unsaturated polymerizable functional group G2 selected from the group consisting of a vinlyether group, an allylether group and a allylester group; b) 0 - 55 wt% of one or more polymerizable compounds B selected from the group consisting of monofunctional acrylates and difunctional acrylates; and c) 0 - 55 wt% of one or more polymerizable compounds C selected from the group consisting of trifunctional acrylates, tetrafunctional acrylates, pentafunctional acrylates and hexafunctional acrylates, with the proviso that if the weight percentage of compounds B > 24 wt%, then the weight percentage of compounds C > 1 wt%; and wherein all weight percentages of A, B and C are based upon the total weight of the polymerizable composition; and with the proviso that at least one polymerizable compound B or C is present in the polymerizable composition if the free radical curable liquid contains no initiator.
A free radical curable liquid for inkjet printing of food packaging materials comprising no initiator or otherwise one or more initiators selected from the group consisting of non-polymeric di- or multifunctional initiators, oligomeric initiators, polymeric initiators and polymerizable initiators; wherein the polymerizable composition of said liquid consists essentially of: a) 25 - 100 wt% of one or more polymerizable compounds A having at least one acrylate group G1 and at least one second ethylenically unsaturated polymerizable functional group G2 different from the group G1; b) 0 - 55 wt% of one or more polymerizable compounds B selected from the group consisting of monofunctional acrylates and difunctional acrylates; and c) 0 - 55 wt% of one or more polymerizable compounds C selected from the group consisting of trifunctional acrylates, tetrafunctional acrylates, penta-functional acrylates and hexafunctional acrylates, with the proviso that if the weight percentage of compounds B > 24 wt%, then the weight percentage of compounds C > 1 wt%; and wherein ail weight percentages of A, B and C are based upon the total weight of the polymerizable composition; with the proviso that at least one polymerizable compound B or C is present in the polymerizable composition if the free radical curable liquid contains no initiator; wherein the polymerizable compound A has a copolymerization ratio of 0.002 < r2 / r1 < 0.200 with r1 and r2 representing the copolymerization parameters of methyl-G1 respectively methyl-G2 determined according to the method of Kelen-Tudos.
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
patents
