序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
121 On-demand operation of a flexographic coating unit US14396933 2013-04-23 US09616443B2 2017-04-11 Mads Kylling; Marko Ryynänen; Erik Gydesen; Petri Sirviö
A coating unit is located after a sheet-fed digital printer on a manufacturing line. As a response to a workpiece entering the coating unit from the printer, coating substance is dosed onto a plate cylinder, and said plate cylinder is rotated to transfer said coating substance onto the workpiece, which is then transferred further on the manufacturing line. As a response to a first time limit expiring after transferring the workpiece further without a subsequent workpiece entering the coating unit, the rotation of the plate cylinder is stopped.
122 Method for cleaning an anilox printing unit US14222820 2014-03-24 US09205642B2 2015-12-08 Dieter Schaffrath; Andreas Braun; Steffen Hilbert
A method for cleaning an anilox printing unit includes a first process step and a second process step immediately following the first process step without any intermediate printing operation. In the first process step, printing ink is supplied to a screen roller from a blade-type ink fountain while an ink applicator roller is in contact with the screen roller and out of contact with a bridge roller of a dampening unit. In the second process step, printing ink is removed from the screen roller and returned into the same blade-type ink fountain while the ink applicator roller is engaged with the screen roller and with the bridge roller.
123 SYSTEMS AND METHODS FOR IMPLEMENTING A RELEASE FILM FOR A CLEANING UNIT IN AN IMAGE FORMING DEVICE USING DIGITAL OFFSET LITHOGRAPHIC PRINTING TECHNIQUES US14266498 2014-04-30 US20150314589A1 2015-11-05 Bruce Earl THAYER
A system and method are provided for depositing a release layer/film on a cleaner roller in an image forming device to facilitate effective cleaning of a reimageable surface in an image forming device using a proposed variable data digital lithographic image forming architecture. A borax or other solute solution is deposited on a surface of a cleaner roller and an air knife is used to evaporate a liquid component of the solution causing the liquid to come off and a thin-film of borax or other solute to remain on the surface of the cleaner roller. The thin film layer is then dry at a point of contact with the reimageable surface to recover residual ink from the reimageable surface with the surface of the cleaner roller on top of the thin film layer. The thin film layer is re-wetted to support efficient transfer of the ink to a web.
124 METHOD AND A SYSTEM FOR CLEANING PRINTING PARTS US14396996 2013-03-13 US20150068558A1 2015-03-12 Daniel Poissant; Anton Chernyshov; Martin Gingras; Eric Thibault
A system and a method for cleaning a printing cylinder or other printing equipment such as printing plates, ink pans or floors of printing units, the method comprising applying a detergent to the surface to be cleaned, after a period to allow action of the detergent, removing the detergent by rinsing, using a vapor and high velocity air stream, i.e. atomized water fog; or steam; or a combination of steam and air, which allows dislodging particles encrusted within cells of the surface of the piece of equipment to be cleaned.
125 Ink film thickness distribution forming method and apparatus US13600170 2012-08-30 US08955436B2 2015-02-17 Masahiro Hirano; Hiromichi Totsuka
An ink film thickness distribution forming method in an ink supply apparatus including an ink fountain. A plurality of ink fountain keys are arranged in the ink fountain. Ink is supplied to an ink fountain roller in accordance with the opening ratios of the plurality of ink fountain keys. Ink is transferred to an ink ductor roller from the ink fountain roller. Ink from the ink doctor roller is transferred to an ink roller group including at least one ink form roller. A throw-off operation of the ink form roller positioned at an end of the ink roller group is performed after the end of a print job. The ink roller group is divided into a plurality of roller subgroups after the end of the print job. The ink in at least one of roller subgroups is removed. An ink film thickness distribution forming apparatus is also disclosed.
126 Ink supply apparatus of printing press US13571322 2012-08-09 US08939078B2 2015-01-27 Hiroyoshi Kamoda; Akehiro Kusaka; Hiroto Nagura; Norihiro Kumagai; Hiroyuki Sato; Akihiko Takenouchi
An ink supply apparatus of a printing press includes at least one inking device. In the inking device, an ink fountain roller is rotatably supported. An ink fountain main body forms a space to store an ink together with an outer surface of the ink fountain roller. A guide member slidably supports the ink fountain main body and guides the ink fountain main body between a first position where the space is formed and a second position spaced apart from the ink fountain roller than the first position. A doctor including a blade is attached to a doctor holding member between the ink fountain main body and the ink fountain roller when the ink fountain main body is located at the second position. The blade abuts against the ink fountain roller and cleans the ink fountain roller.
127 METHOD FOR CLEANING AN ANILOX PRINTING UNIT US14222820 2014-03-24 US20140283705A1 2014-09-25 DIETER SCHAFFRATH; ANDREAS BRAUN; STEFFEN HILBERT
A method for cleaning an anilox printing unit includes a first process step and a second process step immediately following the first process step without any intermediate printing operation. In the first process step, printing ink is supplied to a screen roller from a blade-type ink fountain while an ink applicator roller is in contact with the screen roller and out of contact with a bridge roller of a dampening unit. In the second process step, printing ink is removed from the screen roller and returned into the same blade-type ink fountain while the ink applicator roller is engaged with the screen roller and with the bridge roller.
128 FLEXOGRAPHIC PRINTING PROCESS WITH WET ON WET CAPABILITY US14192597 2014-02-27 US20140238253A1 2014-08-28 Valter Marques Baptista; Wilson Andrade Paduan
The invention refers to a flexographic printing process with wet on wet capability based on controlled polymer or polymer segment precipitation that leads to gel formation of ink compounds by controlling the solubility parameter of the ink system. The mechanism to obtain a desirable wet on wet color trapping is the formation and/or presence of a gel in the applied ink film due to a controlled physicochemical mechanism of resin precipitation. This is accomplished either by controlling a change in the Hansen Solubility Parameter of the liquid in the ink through evaporation of some or all of a non-reactive and volatile solvent, or alternatively by use of a polymer comprised of two distinct and separate segments one of which is soluble in the monomer/oligomer mix and the other of which is not. The insoluble segments form a reversible gel that is broken to a liquid by shear in the application process, allowing application of a liquid ink, and is reestablished in the applied ink film in such a manner and with such strength as to allow overprinting in the wet on wet flexographic printing process.
129 APPARATUS FOR FLEXOGRAPHIC PRINTING OF A WEB OF PACKAGING MATERIAL US14127500 2012-10-25 US20140230672A1 2014-08-21 Ingvar Andersson; Stefan Nyborg; Michael Hermansson; Peter Öhman
The disclosure relates to an apparatus for flexographic printing of a web of packaging material. The apparatus has an anilox roll which is rotary in an ink pan or chamber for picking up and transferring printing ink to an impression cylinder which is rotary adjacent the anilox roll and forms, together with a counter pressure cylinder rotary adjacent the impression cylinder, a nip through which the web is led for receiving printing ink from the impression cylinder. In order to prevent printing ink from drying and adhering to the anilox roll, the apparatus displays a spray- or shower device through which a cleaning fluid for the printing ink is applied on the circumferential surface of the anilox roll.
130 Ink for use in a flexographic printing process with wet on wet capability US13432345 2012-03-28 US08729147B2 2014-05-20 Valter Marques Baptista; Wilson Andrade Paduan
A flexographic printing ink for use in a flexographic printing process with wet on wet capability, comprising a polymer and a combination of liquids comprising radiation curable monomers and/or oligomers, diluents, colorants, additives, and photoinitiators, the components having the Hansen Solubility Parameters adjusted to generate an ink with a capability to form a gel having the required physical characteristics, and that is in a liquid form in the presence of a small quantity of non reactive solvent, or is brought to a liquid state during the printing process. The disclosure is also directed to a flexographic printing process with wet on wet capability based on controlled polymer or polymer segment precipitation that leads to gel formation of ink compounds by controlling the solubility parameter of the ink system.
131 Printing device, patterning method using the same, and method of fabricating a liquid crystal display device using the same US12659074 2010-02-24 US08601945B2 2013-12-10 Chul Ho Kim; Tae Young Oh; Choon Ho Park
A printing device, a patterning method using the same and a method of fabricating an LCD device using the same are disclosed. The printing device includes a printing roll having a blanket adhered to an outer surface thereof; and an absorption nozzle to absorb solvent from the blanket. The absorption nozzle may include an absorber having a slit, a vacuum controller connected to the absorber, and a pipe connected to the vacuum controller.
132 APPARATUS FOR FLEXOGRAPHIC PRINTING PROCESS WITH WET ON WET CAPABILITY US13829295 2013-03-14 US20130192483A1 2013-08-01 Valter Marques Baptista; Wilson Andrade Paduan
The present disclosure is related to an apparatus for a flexographic printing process with wet on wet capability based on controlled polymer or polymer segment precipitation that leads to gel formation of ink compounds by controlling the solubility parameter of the ink system. Insoluble segments in the ink form a reversible gel that is broken to a liquid by heat and/or shear forces during the application process, allowing application of a liquid ink. After application, the ink reverts to its gel state with such strength as to allow overprinting in the wet on wet flexographic printing process. The disclosure is also related to a flexographic printing apparatus comprising a feeding system for providing a flexographic ink, wherein the ink in a liquid state has a viscosity ranging from about 100 cps to about 4,000 cps, and the ink in a gel state has a measurable hardness.
133 PRINTING UNIT OF A ROTARY PRINTING PRESS AND A METHOD FOR WASHING A DAMPENING UNIT OF A PRINTING UNIT US12449067 2007-10-26 US20100101436A1 2010-04-29 Christian Bünner; Bernd Kurt Masuch; Wolfgang Otto Reder
A printing unit of a rotary printing press includes a forme cylinder. An inking unit interacts with the forme cylinder and has a plurality of inking rolls. A dampening unit also interacts with the forme cylinder and has a plurality of dampening rolls. A washing device interacts with at least one of the inking rolls and dampening rolls for washing the inking unit and/or the dampening unit. The inking unit includes a plurality of ink applicator rolls which can be placed directly onto the forme cylinder during printing operation. The dampening unit has at least one dampening rotation applicator roll that can also be placed directly onto the forme cylinder during printing operations. In a washing position, one of the plurality of ink application rolls and the dampening rotation applicator roll are brought directly into contact with each other.
134 Method for cleaning an anilox inking unit US11804870 2007-05-21 US07677174B2 2010-03-16 Dieter Eckel; Michael Fichtner; Michael Gross; Jürgen Michels; Rainer Rehn; Dieter Schaffrath; Wolfgang Schönberger; Bernhard Schwaab; Michael Thielemann
In a method for cleaning an anilox inking unit, a doctor bears against a roller and an intermediate roller bears against the roller and on an engraved roller. During cleaning, the intermediate roller has been or is displaced axially. Because the intermediate roller can be displaced axially, edge regions of the engraved roller can also be cleaned during a cleaning operation.
135 Printing Machine US11887366 2006-03-29 US20090205522A1 2009-08-20 Masayuki Izume
A printing machine in which the automation of the replacement of the barrier plate is easily performed, and in which further automation of replacement procedure, simplification of replacement procedure, and reduction of time required for replacement procedure are achieved is provided.The printing machine comprises an ink fountain member 2, an ink fountain roller 3, a pair of barrier plates 53 attracted to the fountain-forming face 37a of the ink fountain member 2 and the outer peripheral surface of the ink fountain roller 3 by a permanent magnet, and a barrier plate replacing device 85. The barrier plate replacing device 85 comprises a fountain-member turning device 36, a barrier plate stopper 110 for stopping the barrier plate rotated with the ink fountain roller 3 away from the fountain-forming face 37a by the turning of the ink fountain member 2 and turning the barrier plate in a direction away from the outer peripheral surface of the ink fountain roller 3, a moving body 88 capable of moving above the ink fountain 1 and being raised and lowered, and a barrier plate holding member 91 disposed in the moving body 88 to hold and release the barrier plate 53.
136 Process for Cleaning Engraved Cylinders Used in Printing and Packaging Industry From Adhesive and/or Ink Residues US11885986 2005-10-15 US20090071509A1 2009-03-19 Ernesto Reverchon; Giovanna Della Porta
A process for the removal of dry adhesives and/or inks from the surface and from the interior of the cells of the engraved cylinders used in printing and coupling processes, using a supercritical mixture formed by one or more organic solvents and a supercritical fluid, preferably consisting of supercritical carbon dioxide. The microscopic cells of the engraved cylinders used in printing industry or of the cylinders used for film coupling in packaging industry are thoroughly and easily cleaned by a process comprising the steps of forming the said supercritical mixture, delivering it in a high pressure autoclave previously filled with the engraved cylinders to be cleaned, cleaning for a given residence time, eliminating the organic solvent residue in the autoclave by washing it with supercritical fluid and precipitating the extracted inks and/or adhesives in one or more separators located downstream the autoclave.
137 CLEANING DEVICE FOR ROLLERS IN LITHOGRAPHIC PLATE MANUFACTURING US11693390 2007-03-29 US20080236423A1 2008-10-02 Harald Baumann; Udo Dwars; Joerg Heinemann; Michael Mursal; Marco Scala
An apparatus and related method for preparing a lithographic web during manufacturing by incorporating a cleaning device cleaning device capable of being in contact with one or more web rollers. The cleaning device including a cleaning applicator to apply the cleaning solution such that the cleaning solution connected to the cleaning applicator, and a controller to move the applicator from an operational mode to a self-cleaning mode.
138 Method for Operating an Anilox Printing Unit and Printing Press for Carrying out the Method US11950604 2007-12-05 US20080127840A1 2008-06-05 Gisela Binder; Suat Demir; Jurgen Michels; Dieter Schaffrath; Jorg Schilfahrt; Wolfgang Schonberger; Bernhard Schwaab; Michael Thielemann
A method of operating an anilox printing unit in which ink accumulates on and detaches from a feed blade and, after detaching from the feed blade, forms ink accumulations on a screen roller, and in which a gap is formed between the screen roller and a further roller for the ink accumulations to pass through the gap without contacting the further roller, includes forming the gap by displacing the axis of the further roller and evening out the ink accumulations on the screen roller to such an extent that the ink accumulations that have been evened out pass the gap without contacting the further roller. A smoothing roller, for example, may be used to even out the ink accumulations. A printing press for carrying out the method is also provided.
139 CLEANING DEVICE AND PRINTER US11942558 2007-11-19 US20080115682A1 2008-05-22 Fumito Kajitani; Shigeo Makino; Yukikazu Shoji; Yoshiaki Kanda
A cleaning device that cleans an ink-supply path of a printer including a plurality of cylinders that constitute the ink-supply path. The cleaning device supplies cleaning solution from a cleaning nozzle to an ink-transfer cylinder in the state where the ink-transfer cylinder is not in contact with an ink-source cylinder, and a blanket cylinder is not in contact with a recording medium. After the cleaning solution is supplied to all the cylinders, a cleaning-solution collecting cylinder is brought into contact with an inking cylinder to collect waste cleaning solution therefrom. A cleaning-solution removing blade removes the waste cleaning solution from the cleaning-solution collecting cylinder.
140 Method for cleaning an anilox inking unit US11804870 2007-05-21 US20070266873A1 2007-11-22 Dieter Eckel; Michael Fichtner; Michael Gross; Jurgen Michels; Rainer Rehn; Dieter Schaffrath; Wolfgang Schonberger; Bernhard Schwaab; Michael Thielemann
In a method for cleaning an anilox inking unit, a doctor bears against a roller and an intermediate roller bears against the roller and on an engraved roller. During cleaning, the intermediate roller has been or is displaced axially. Because the intermediate roller can be displaced axially, edge regions of the engraved roller can also be cleaned during a cleaning operation.
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