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公开(公告)号：US20230001684A1
公开(公告)日：2023-01-05
申请号：US17939588
申请日：2022-09-07
摘要： The invention pertains to a photosensitive element, particularly a photopolymerizable printing form precursor; a method of preparing the photosensitive element to form a printing form for use in relief printing; and, a process of making the photosensitive element. The printing form precursor includes a layer of a photosensitive composition, a digital layer that is adjacent to a side of the photosensitive layer, and a cell pattern layer that is disposed between the photosensitive layer and the digital layer. The cell pattern layer includes a plurality of features in which each feature an area between 5 to 750 square microns and is composed of an ink that is opaque to actinic radiation and transparent to infrared radiation. Since the cell pattern layer is integral with the printing form precursor, digital imaging can occur rapidly with relatively low resolution optics to form a mask without needing to also form a microcell pattern of the digital layer. The printing form precursor having the integrated cell pattern layer facilitates the preparation of relief printing forms to have a print surface suitable for printing solids with uniform, dense coverage of ink.
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公开(公告)号：US20220176688A1
公开(公告)日：2022-06-09
申请号：US17439919
申请日：2020-03-19
申请人： XEIKON PREPRESS N.V.
IPC分类号： B41C1/00
摘要： A method for applying a pattern on a mask layer includes obtaining an image file representing pixels with a first pixel size in a first direction parallel to an edge of the pixel, and a second pixel size in a second direction perpendicular to the first direction, where the first and second pixel size are the same or different, treating the mask layer such that a plurality of areas with altered physical properties are created in the mask layer, the plurality of areas corresponding to a plurality of pixels of the image file, where the treatment is done such that a first and/or a second area size of an area of said plurality of areas, seen in said first and/or said second direction, is smaller than the first and/or second pixel size, respectively.
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公开(公告)号：US11285712B2
公开(公告)日：2022-03-29
申请号：US15473693
申请日：2017-03-30
IPC分类号： B41C1/00 , G03F7/00 , B23K26/361 , B23K26/362 , B23K26/402 , B29C59/02 , B29C59/04 , B23K103/16 , B29L31/00
摘要： An analog method of making a patterned flexographic printing plate, the method comprising impressing a flexible patterned substrate into an uncured soft photopolymer plate to form the patterned flexographic printing plate.
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公开(公告)号：US20210206190A1
公开(公告)日：2021-07-08
申请号：US17056584
申请日：2019-08-30
申请人： Esko-Graphics BVBA
发明人： Olivier Barbier , Jonathan Schmitt
摘要： A photosensitive flexographic printing form, and process for manufacturing the same. The printing form includes a base, a first series of relief patterns having a first elevation with respect to the base in an image area of the base, and a second series of relief patterns having one or more elevations lower than the first elevation and located outside of the image area.
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公开(公告)号：US20210094272A1
公开(公告)日：2021-04-01
申请号：US15733300
申请日：2018-12-26
摘要： A method of applying a pattern to a nonplanar surface. A stamp has a major surface with pattern elements having a lateral dimension of greater than 0 and less than about 5 microns. The major surface of the stamp has a functionalizing molecule with a functional group selected to chemically bind to the nonplanar surface. The stamp is positioned to initiate rolling contact with the nonplanar surface, and contacts the nonplanar surface to form a self-assembled monolayer (SAM) of the functionalizing material thereon and impart the arrangement of pattern elements thereto. The major surface of the stamp is translated with respect to the nonplanar surface such that: a contact pressure is controlled at an interface between the stamping surfaces and the nonplanar surface, and a contact force at the interface is allowed to vary while the stamping surfaces and the nonplanar surface are in contact with each other.
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公开(公告)号：US10953648B2
公开(公告)日：2021-03-23
申请号：US14897839
申请日：2014-06-12
发明人： Uwe Stebani , Joelle Bedat , Armin Becker , Alfred Leinenbach , Claudia May , Christian Arnold , Josef Rothen
摘要： Methods for producing cylindrical flexographic printing elements, the cylindrical flexographic printing elements having a relief-forming layer, and the relief-forming layer being produced by successive application of a plurality of layers of a relief-forming material in liquid melt form, preferably of a photopolymerizable material in liquid melt form, to a rotating cylindrical sleeve in a continuous process.
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公开(公告)号：US10691021B2
公开(公告)日：2020-06-23
申请号：US15506088
申请日：2015-08-27
发明人： Gernot Dietz , Markus Mühlfeit , Frank Boyksen
摘要： A device for producing flexographic printing plates starting from digitally imagable flexographic printing elements, with which at least the method steps of reverse exposure, main exposure, development using washout media, drying, and aftertreatment can be carried out in automated form, the device comprising at least two different transport devices with which the flexographic printing elements or plates, respectively, are transported through the device. A method for producing flexographic printing plates using said device.
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公开(公告)号：US10518571B2
公开(公告)日：2019-12-31
申请号：US15577103
申请日：2016-05-24
发明人： Matthias Beyer , Armin Becker
摘要： A digitally imageable, photopolymerizable flexographic printing element that includes, disposed one above another in order, at least a dimensionally stable support, at least one photopolymerizable, relief-forming layer having a layer thickness of 300-6000 μm, including at least one elastomeric binder, an ethylenically unsaturated monomer, and a photoinitiator or a photoinitiator system, an oxygen-blocking barrier layer which is transparent to UVA light and has a layer thickness of 0.3-5 μm, a laser-ablatable mask layer having a layer thickness of 0.3-5 μm, including at least one elastomeric binder and a material which absorbs UV/VIS light, and a removable outer film, wherein the at least one relief-forming layer, the barrier layer and the mask layer are soluble or dispersible in an organic solvent, and the barrier layer includes at least one oxygen-blocking binder and an oligomeric or polymeric basic adhesion component.
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公开(公告)号：US10399851B2
公开(公告)日：2019-09-03
申请号：US15515399
申请日：2015-09-28
发明人： Chi-fan Chen , Wan-chun Chen , Yu-chih Lin , Tze Yuan Wang , Chia-yuan Liu
IPC分类号： B81C1/00 , A61B5/145 , H05K3/06 , B41M1/26 , B41M1/12 , B41C1/00 , A61B5/15 , H05K1/03 , H01L21/48
摘要： A master tool is provided with an ink pattern on a major surface thereof. The ink pattern is formed by a screen printing process. A stamp-making material is applied to the major surface of the master tool to form a stamp having a stamping pattern being negative to the ink pattern of the master tool. The stamping pattern is inked with an ink composition and contacted with a metalized surface to form a printed pattern on a metalized surface of a substrate according to the stamping pattern. Using the printed pattern as an etching mask, the metalized surface is etched to form electrically conductive traces on the substrate.
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公开(公告)号：US10046593B2
公开(公告)日：2018-08-14
申请号：US15455553
申请日：2017-03-10
申请人： HP INDIGO B.V.
发明人： Eyal Peleg , Shahar Stein
摘要： An embossing die is created by printing multiple ink layers (530, 540) in superposition thereby to build up a printed relief pattern (510) in accordance with received design data specifying a design to be embossed. The design data is modified after receipt to introduce into the printed relief pattern to be built, one or more channels (610) which extend depth-wise through multiple ink layers of the printed relief pattern (510) and serve to fully or partially segment the printed relief pattern.
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