121 |
Ghost-free inking methods, apparatus, and systems with reduced fountain solution contamination |
US13192137 |
2011-07-27 |
US08893616B2 |
2014-11-25 |
Chu-heng Liu |
A digital offset inking system includes an ink supply, a soft transfer roll, and a hard form roll. A cleaning blade cleaning ink and fountain solution from the surface of the hard form roll that is leftover after transferring ink to a digital imaging member. A fountain solution removal system processes the ink to remove the fountain solution from the ink. The processes ink is resupplied to the inking system for transfer to the digital imaging member. |
122 |
SYSTEM AND METHOD FOR IMPREGNATING, WITH A SOLVENT, A FABRIC FOR CLEANING THE BLANKET AND THE METAL PRINTING CYLINDER OF A PRINTING MACHINE |
US14348469 |
2012-09-18 |
US20140283317A1 |
2014-09-25 |
Luca Pavan |
The system (1) for impregnating, with a solvent (2), a fabric (3) for cleaning the blanket and the metal printing cylinder of a printing machine includes at least one tank (4) suitable for being filled up to a certain level (9) with the solvent and at least one impregnating roller (6) placed in the tank in a position suitable for being partially immersed in the solvent, the impregnating roller having a coating made of a material having properties of resistance to the corrosion induced by the solvent and sufficient interfacial tension with the solvent to deliver a uniform micrometric film (11) of solvent toward the cleaning fabric, there being provided above the filling level of the tank an area of contact (8) between the impregnating roller and the cleaning fabric wherein the direction of the peripheral velocity to which the impregnating roller is subjectable is opposite to the direction of the feed velocity to which the cleaning fabric is subjectable, so that the impregnating roller, when driven in rotation, picks up a film of solvent which by contact impregnates the cleaning fabric being fed in the opposite direction. |
123 |
APPARATUS, PRINTERS, AND METHODS TO REMOVE MATERIAL FROM A PRINTER SURFACE |
US14110686 |
2011-04-29 |
US20140150680A1 |
2014-06-05 |
Daihua Zhang; Napoleon J. Leoni; Henryk Birecki; Omer Gila |
Apparatus, printers, and methods to remove material from a printer surface are disclosed. An example apparatus includes a fluid remover to remove printing material from a printer surface, and a coating material reservoir to store coating material and to apply the coating material to the fluid remover to reduce an amount of printing material transferred to the fluid remover from the printer surface. |
124 |
TUNABLE SURFACTANTS IN DAMPENING FLUIDS FOR DIGITAL OFFSET INK PRINTING APPLICATIONS |
US13268213 |
2011-10-07 |
US20130087167A1 |
2013-04-11 |
Naveen Chopra; Peter Gordon Odell; Steven E. Ready; Eric Peeters; Timothy D. Stowe; Ashish Pattekar; David K. Biegelsen |
A dampening fluid useful in offset ink printing applications contains water and a surfactant whose structure can be altered. The alteration in structure aids in reducing accumulation of the surfactant on the surface of an imaging member. The surfactant can be decomposed, switched between cis-trans states, or polymerizable with ink that is subsequently placed on the surface. |
125 |
WIPING DEVICE |
US13570200 |
2012-08-08 |
US20130042773A1 |
2013-02-21 |
Norihiro Kumagai |
A wiping device includes an intaglio cylinder, a cylinder cleaning device, and a wiping liquid supply device. The intaglio cylinder is rotatably supported. The cylinder cleaning device removes excess ink adhered to an outer surface of the intaglio cylinder. The wiping liquid supply device supplies a wiping liquid for cleaning to the cylinder cleaning device. The wiping liquid supply device includes a waste liquid tank, a new liquid tank, a first pump, and second pump. The waste liquid tank stores a waste wiping liquid discharged from the cylinder cleaning device. The new liquid tank stores a clean wiping liquid. The first pump supplies the clean wiping liquid from the new liquid tank to the cylinder cleaning device. The second pump supplies a supernatant liquid of the waste wiping liquid stored in the waste liquid tank and separated into a precipitate and the supernatant liquid to the cylinder cleaning device. |
126 |
Variable Data Lithography System for Applying Multi-Component Images and Systems Therefor |
US13204567 |
2011-08-05 |
US20120274914A1 |
2012-11-01 |
Timothy Stowe; Eric Peeters |
A reimageable layer of an imaging member is provided with a dampening fluid layer. The reimageable layer has specific properties such as composition, surface profile, and so on so as to be well suited for receipt and carrying the dampening fluid layer. An optical patterning subsystem such as a scanned modulated laser patterns the dampening fluid layer. Ink having a first set of properties such as color, composition, etc., is applied at an inking subsystem such that it selectively resides in voids formed by the patterning subsystem in the dampening fluid layer to thereby form an inked latent image. The inked latent image is then transferred to a substrate, and the reimageable surface cleaned. The process is repeated for a second ink having properties different than the first. Each ink image may successively be applied to the substrate, or a composite image may be formed then applied to the substrate. |
127 |
Cleaning Subsystem for a Variable Data Lithography System |
US13095737 |
2011-04-27 |
US20120103217A1 |
2012-05-03 |
Timothy Stowe; Eric Peeters; Martin Sheridan; Ashish Pattekar; Gregory Anderson |
An cleaning subsystem for a variable data lithography system includes a first cleaning member having a conformable adhesive surface disposed for physical contact with an imaging member such that residual ink remaining on the imaging member, such as following transfer of an inked latent image from the imaging member to a substrate, adheres to the conformable adhesive surface and is thereby removed from the imaging member. The cleaning subsystem may further include a second cleaning member, in physical contact with the first cleaning member, having a relatively hard, smooth surface such that residual ink removed from the imaging member and adhering to the adhesive surface of the first cleaning member may split onto the second cleaning member. |
128 |
Method for Changing Edition on a Rotary Press |
US12863557 |
2009-01-14 |
US20110011292A1 |
2011-01-20 |
Nicolas Sebastien Rousseau; Christophe Jean Olivier Noiret; Chrisophe Maurice Lambert |
A method for successive printing of a first print job and a second print job on the same web using at least one printing group of the rotary press to print the first print job and the second print job is provided. The printing group includes at least a plate cylinder, a plate, a blanket cylinder and a blanket. Between the first print job and the second print job, a plate-changing stage occurs in which the blanket is held away from the web and the plates of the plate cylinder are changed. According to one aspect of the invention, between the first print job and the second print job, the web is kept traveling through the rotary press. |
129 |
METHOD AND MACHINE FOR TREATING A REUSABLE PRINTING TECHNOLOGY SURFACE WITH AT LEAST ONE LIQUID AND MACHINE FOR PROCESSING PRINTING MATERIAL |
US12503411 |
2009-07-15 |
US20100011980A1 |
2010-01-21 |
Helge Grandt; Bernd Hoffmann; Alexander Matern; Michael Pasuch |
A method for treating a reusable printing technology surface, preferably a printing form that can be re-imaged, with at least one liquid, for example cleaning fluid, rinsing liquid, solution of amphiphilic molecules or gumming agent, includes rotating the printing technology surface about a cylinder axis, applying the liquid to the printing technology surface in the form of a jet and at a varying angle and contacting the printing technology surface with a movable cloth. The printing technology surface is rotated at a varying rotational speed. The rotational speed is preferably varied in stages, in particular increased, in order to achieve the best possible treatment results, for example cleaning and (re-) covering with amphiphilic molecules. The method can preferably be implemented in a printing press or a plate exposer. A machine for treating a reusable printing technology surface and a machine for processing printing material, are also provided. |
130 |
Letterpress Printing Machine |
US12463333 |
2009-05-08 |
US20090217834A1 |
2009-09-03 |
Yukio Konaka; Tomoaki Fukuhara; Hiroshi Matsuzawa |
A letterpress printing machine is disclosed including a rotary printing cylinder in which a relief printing plate is installed, a substrate surface plate on which a substrate is placed, an ink supply device supplying ink on the relief printing plate, a relief printing plate washing equipment washing the surface of the relief printing plate, and a wiper for a plate. The relief printing plate washing equipment can include a washing liquid supplying unit, an air blasting unit jetting pressurized gas to the relief printing plate, a suction unit sucking the washing liquid scattered by air blasting unit, and a washing liquid recovery unit. |
131 |
Method for cleaning printing plates |
US12284220 |
2008-09-18 |
US20090095179A1 |
2009-04-16 |
Gerhard Augsberg; Ulrich Jung; Jurgen Scholzig; Lothar Simon |
An inking unit in a printing machine having an ink dispensing system comprising an inking roller and a form cylinder carrying at least one printing form. The inking roller transfers printing ink arriving thereon to at least one printing form positioned on the form cylinder. The printing ink is transferable from a respective printing form to print sheets moved between the form cylinder and an impression cylinder. The inking roller is also adjustable relative to the form cylinder. An engagement and/or disengagement of the inking roller relative to the form cylinder and/or an engagement and/or disengagement of a print blanket cylinder or form cylinder relative to the impression cylinder is performable such that print sheets become can be imprinted with a residual ink image by residual ink remaining on the plate cylinder or print blanket cylinder in a printing ON setting with the ink supply disengaged. |
132 |
Cleaning apparatus, cleaning method, pattern formation apparatus, and pattern formation method |
US12230607 |
2008-09-02 |
US20090056741A1 |
2009-03-05 |
Atsuko Iida; Mitsunaga Saito; Koichi Ishii; Ken Takahashi; Yoshihiro Tajima; Yasushi Shinjiyo; Shigeyuki Tashiro; Daiji Hirosawa |
A pattern formation apparatus has a drum-like intaglio rolling along a transferred medium. After the intaglio is charged by a charger, a pattern of toner particles is formed by supplying a liquid developer of each color to the intaglio via a developing machine and an electric field is formed between the intaglio and the transferred medium by rolling the intaglio along the transferred medium to transfer charged toner particles to the transferred medium. A cleaning apparatus which cleans the intaglio after the pattern in each color being transferred to the transferred medium has nozzles at an angle for blowing a cleaning liquid against recesses and removal rollers for removing toner particles liberated from the recesses together with the cleaning liquid. |
133 |
Method and device for cleaning a cylinder of a printing press |
US10558954 |
2003-12-19 |
US20060266242A1 |
2006-11-30 |
Angelo Bartesaghi; Roberto Perego |
A method and a device for cleaning a cylinder of a printing press—in particular of a flexographic printing press—are described wherein a layer of ink to be transferred to a web substrate to be printed—such as paper, plastic film and the like—is deposited on said cylinder (1) and wherein a fluid suitable to detach impurities from the area concerned is sent onto the surface of the cylinder (1) to be cleaned and a suction is provided to remove said impurities from the cylinder surface, said cleaning fluid being vapour. |
134 |
Washing and cleaning device for cylinders, especially printing form cylinders and offset blanket cylinders in a printing machine |
US10510489 |
2003-04-07 |
US20050160933A1 |
2005-07-28 |
Johannes Ruschkowski |
An erasing and cleaning apparatus for cylindrical surfaces including a cleaning cloth transporting device which can be packaged with a cleaning cloth in a cassette. The cassette is exchangeably inserted between side walls of a positioning unit, the positioning unit being connectable with a drive for driving transporter device. A lateral guide is arranged in a printing press and includes a carriage and a device for moving the positioning unit between a first position, in the which the transporter is moved onto the cylindrical surface to be cleaned, and an out-of-contact position, at which said cassette is laterally removable from the positioning unit. The erasing and cleaning apparatus further includes at least one coupling module for selectively coupling and decoupling a removable one of the sidewalls of the positioning unit to and from the cassette. |
135 |
Printing machine with block-cleaning device |
US10370151 |
2003-02-18 |
US06684784B2 |
2004-02-03 |
Wilfried Kolbe; Klaus Schirrich; Wolfgang Brusdeilins |
A cleaning device for cleaning blocks clamped on a rotationally driven printing cylinder of a printing machine, the cleaning device including a rotatable cleaning roller, cleaning organs disposed on a periphery of the cleaning roller and which can be placed in contact with a peripheral surface of a printing cylinder, with angular positions of the cleaning organs varying in an axial direction of the cleaning roller, and the cleaning organs, in each angular position, are disposed on the periphery of the cleaning roller in only a single axial section of the cleaning roller, and control equipment for locking the cleaning organs in different angular positions. |
136 |
Cleaning apparatus for printing press |
US10043832 |
2002-01-11 |
US20030205157A1 |
2003-11-06 |
Donn
Nathan
Boatman; George
Vincent
Wegele; Krista
Beth
Comstock; Glen
Charles
Fedyk; Mark
Edwin
Forry; David
Albert
Peterson; Timothy
Paul
Fiedeldey |
A cleaning apparatus for a printing press. The cleaning apparatus of the present invention allows for effective removal of contaminants from printing press print plates while the printing press is running. Furthermore, the cleaning apparatus of the present invention effectively applies and removes cleaning fluids such as water from the printing plate without resulting in the formation of water drops and streaks on the printed substrate. |
137 |
Printing machines |
US10029044 |
2001-12-20 |
US06516720B2 |
2003-02-11 |
Wai Cheung; Edward H. Hutchinson |
A rotary printing machine having two doctor blades, a gravity fed ink dispensing mechanism, and a drum cleaning spray system is provided. Ink is applied in excess to one of the doctor blades and excess ink is removed by the other. One of the ink dispensing mechanisms can be removed and replaced while printing is taking place using ink from the other ink dispensing mechanisms. |
138 |
Cylinder impurity remover apparatus |
US10225746 |
2002-08-22 |
US20020189475A1 |
2002-12-19 |
Phillip
E.
Jones |
A removable, compact and easily accessible cylinder impurity remover apparatus has a wiping position for removing impurities from a rotatable printing plate cylinder on a printing press and a non-wiping position. The impurity remover removeably slides or swings into position for wiping a plate on the plate cylinder. Most preferably, a pressure source acts on two pistons to move two parallel reciprocably mounted shafts and a wiper blade mounted thereon to the wiping position. Both the pistons and shafts are preferably contained inside an actuator bar, which is mounted parallel to a printing plate cylinder. As the wiper blade moves forward to the wiping position, a bias member is compressed and remains compressed until the pressure source stops, allowing the bias member to automatically retract the reciprocably mounted shafts and wiper blade to a non-wiping position. According to one embodiment of the invention, the actuator bar is mounted on the top side of a primary support bar having a shaped track to permit a sliding movement into and out of the printing press. According to a second embodiment of the invention, the actuator bar is pivotally connected to a first main side support and the opposing end of the actuator bar is receivable in a docking portion of a second main side support for pivoting movement relative to the printing press. Both embodiments are compact and allow for the operator to easily access the wiper blade for maintenance and cleaning. |
139 |
Method and apparatus for cleaning coating materials from a substrate |
US10095335 |
2002-03-11 |
US20020124754A1 |
2002-09-12 |
Thomas
K.
Hebert |
The present invention provides a method and apparatus for cleaning a coating material from a surface of a print substrate mounted on the plate cylinder of a printing press using an ultrasonic acoustic cleaning apparatus. The method comprises: applying a cleaning solution onto a surface of the print substrate, rotating the plate cylinder to displace the print substrate under an ultrasonic acoustic cleaning apparatus to dislodge a coating material from the surface of the print substrate, and removing the dislodged coating material and the cleaning solution from the print substrate using a vacuum system. |
140 |
Printing machines |
US10029044 |
2001-12-20 |
US20020088357A1 |
2002-07-11 |
Wai
Cheung; Edward
H.
Hutchinson |
A rotary printing machine having a cylinder, two doctor blades acting on the cylinder and a gravity fed ink dispensing mechanism and a drum cleaning spray system provided on a reciprocating carriage. Ink is applied in excess to one of the doctor blades and excess ink is removed by the other. One of the ink dispensing mechanisms can be removed and replaced while printing is taking place using ink from the other ink dispensing mechanism. |