Patents by Inventor Peter Bracke
Peter Bracke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9108440Abstract: A method and an inkjet printing device for single pass printing on an ink-receiver having a surface includes a plurality of sets of nozzles for jetting N inks on the surface, wherein N is larger than or equal to one, the N inks including a first ink, and wherein the plurality of sets of nozzles includes a first and a second set of nozzles for jetting the first ink; the device further including a radiation curing device arranged to cure the first ink when jetted on the surface by the first set of nozzles, wherein the radiation curing device is positioned between the first set of nozzles and the second set of nozzles.Type: GrantFiled: February 28, 2013Date of Patent: August 18, 2015Assignee: Agfa Graphics NVInventors: Stefaan De Meutter, David Tilemans, Peter Bracke
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Publication number: 20150035905Abstract: A method and an inkjet printing device for single pass printing on an ink-receiver having a surface includes a plurality of sets of nozzles for jetting N inks on the surface, wherein N is larger than or equal to one, the N inks including a first ink, and wherein the plurality of sets of nozzles includes a first and a second set of nozzles for jetting the first ink; the device further including a radiation curing device arranged to cure the first ink when jetted on the surface by the first set of nozzles, wherein the radiation curing device is positioned between the first set of nozzles and the second set of nozzles.Type: ApplicationFiled: February 28, 2013Publication date: February 5, 2015Inventors: Stefaan De Meutter, David Tilemans, Peter Bracke
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Patent number: 8684515Abstract: A radiation curable inkjet printing method for producing printed flexible foils and plastic bags wherein a web-like polymeric substrate having a maximum value for Tan ? between 40° C. and 110° C. and a surface energy Ssub is printed upon using a single pass inkjet printer with a non-aqueous radiation curable inkjet liquid having a surface tension SLiq, wherein SLiq is smaller than Ssub by at least 4 mN/m, and curing the radiation curable liquid on the substrate at a surface temperature equal or higher than the temperature of the maximum value for Tan ? and smaller than the melting point of the polymeric recording medium. A single pass inkjet printer is also disclosed.Type: GrantFiled: December 14, 2012Date of Patent: April 1, 2014Assignee: Agfa Graphics NVInventors: Geert Van Dyck, Etienne Van Thillo, Peter Bracke
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Patent number: 8646901Abstract: A single pass inkjet printing method includes the steps of: a) providing a radiation curable inkjet ink set containing at least a first and a second radiation curable inkjet ink having a dynamic surface tension of no more than 30 mN/m measured by maximum bubble pressure tensiometry at a surface age of 50 ms and at 25° C.; b) jetting a first radiation curable inkjet ink on an ink-jet ink-receiver moving at a printing speed of at least 35 m/min.; c) at least partially curing the first inkjet ink on the ink receiver within the range of 40 to 500 ms after the first inkjet ink landed on the ink receiver; d) jetting a second radiation curable inkjet ink on the at least partially cured first inkjet ink; and e) at least partially curing the second inkjet ink within the range of 40 to 500 ms after the second inkjet ink landed on the first inkjet ink.Type: GrantFiled: December 20, 2010Date of Patent: February 11, 2014Assignee: Agfa Graphics NVInventors: Stefaan De Meutter, Peter Bracke, David Tilemans, Joris Van Garsse, Geert Van Dyck
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Patent number: 8371688Abstract: A radiation curable inkjet printing method for producing printed flexible foils and plastic bags wherein a web-like polymeric substrate having a maximum value for Tan ? between 40° C. and 110° C. and a surface energy Ssub is printed upon using a single pass inkjet printer with a non-aqueous radiation curable inkjet liquid having a surface tension SLiq, wherein SLiq is smaller than Ssub by at least 4 mN/m, and curing the radiation curable liquid on the substrate at a surface temperature equal or higher than the temperature of the maximum value for Tan ? and smaller than the melting point of the polymeric recording medium. A single pass inkjet printer is also disclosed.Type: GrantFiled: October 17, 2008Date of Patent: February 12, 2013Assignee: Agfa Graphics NVInventors: Geert Van Dyck, Etienne Van Thillo, Peter Bracke
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Publication number: 20120281034Abstract: A single pass inkjet printing method includes the steps of: a) providing a radiation curable inkjet ink set containing at least a first and a second radiation curable inkjet ink having a dynamic surface tension of no more than 30 mN/m measured by maximum bubble pressure tensiometry at a surface age of 50 ms and at 25° C.; b) jetting a first radiation curable inkjet ink on an ink-jet ink-receiver moving at a printing speed of at least 35 m/min.; c) at least partially curing the first inkjet ink on the ink receiver within the range of 40 to 500 ms after the first inkjet ink landed on the ink receiver; d) jetting a second radiation curable inkjet ink on the at least partially cured first inkjet ink; and e) at least partially curing the second inkjet ink within the range of 40 to 500 ms after the second inkjet ink landed on the first inkjet ink.Type: ApplicationFiled: December 20, 2010Publication date: November 8, 2012Applicant: AGFA GRAPHICS NVInventors: Stefaan De Meutter, Peter Bracke, David Tilemans, Joris Van Garsse, Geert Van Dyck
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Patent number: 8292385Abstract: An ink supply system for an industrial inkjet printer makes use of a least one buffer vessel wherein ink at low pressure is isolated and pressurized to a high pressure suited for feeding the ink to the printhead. A recirculation ink supply system using plural buffer vessels is suited for repressurizing the ink without the use of a pump. The system avoids generation of gas bubbles due to cavitation which are present in systems using a pump for repressurizing ink.Type: GrantFiled: February 27, 2009Date of Patent: October 23, 2012Assignee: Agfa Graphics NVInventors: Peter Bracke, Davy De Vetter
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Patent number: 7936479Abstract: An image processing method includes a step of converting halftoned pixels of an image to be printed represented at a first lower tonal resolution into pixels represented at a second higher tonal resolution. Image processing is used on the pixels having a higher tonal resolution to reduce image quality artifacts when the pixels are printed at the first lower tonal resolution. In a preferred embodiment, the image processing includes error diffusion of a sigma delta modulation.Type: GrantFiled: June 2, 2006Date of Patent: May 3, 2011Assignee: Agfa Graphics NVInventors: Peter Bracke, Eddy Debaere, Joris Van Garsse
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Publication number: 20110007106Abstract: An ink supply system for an industrial inkjet printer makes use of a least one buffer vessel wherein ink at low pressure is isolated and pressurized to a high pressure suited for feeding the ink to the printhead. A recirculation ink supply system using plural buffer vessels is suited for repressurizing the ink without the use of a pump. The system avoids generation of gas bubbles due to cavitation which are present in systems using a pump for repressurizing ink.Type: ApplicationFiled: February 27, 2009Publication date: January 13, 2011Applicant: AGFA GRAPHICS NVInventors: Peter Bracke, Davy De Vetter
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Publication number: 20100309268Abstract: A radiation curable inkjet printing method for producing printed flexible foils and plastic bags includes the steps of a) providing a web-like polymeric substrate having a maximum value for Tan ? between 40° C. and 110° C.; b) providing a single pass inkjet printer having at least one page-wide printhead or at least one set of staggered printheads, a transporting device arranged to transport the web-like recording medium, and a curing device; c) jetting onto the web-like polymeric substrate having a surface energy Ssub, a non-aqueous radiation curable inkjet liquid having a surface tension SLiq, wherein SLiq is smaller than SSub by at least 4 mN/m; and d) curing the radiation curable liquid on the substrate at a surface temperature equal or higher than the temperature of the maximum value for Tan ? and smaller than the melting point of the polymeric recording medium. The maximum value for Tan ? is determined by dynamic mechanical analysis at a temperature ramp of 3° C.Type: ApplicationFiled: October 17, 2008Publication date: December 9, 2010Applicant: AGFA GRAPHICS NVInventors: Geert Van Dyck, Etienne Van Thillo, Peter Bracke
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Publication number: 20090051944Abstract: An image processing method includes a step of converting halftoned pixels of an image to be printed represented at a first lower tonal resolution into pixels represented at a second higher tonal resolution. Image processing is used on the pixels having a higher tonal resolution to reduce image quality artifacts when the pixels are printed at the first lower tonal resolution. In a preferred embodiment, the image processing includes error diffusion of a sigma delta modulation.Type: ApplicationFiled: June 2, 2006Publication date: February 26, 2009Inventors: Peter Bracke, Eddy Debaere, Joris Van Garsse