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WO/2001/032422A1 |
The invention concerns a printing equipment comprising a gravure screen (10) formed by a grid of criss-cross gravure screen lines (14) forming between them gravure screen points (16). The gravure screen comprises at least a zone wherein ...
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WO1998050235B1 |
In a bearing for a rotary press cylinder (03), at least one support roller (13) can be moved to change the cylinder.
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WO/2001/002170A1 |
A method and device for printing a base material (96), whereby a printing roller (10a) provided with a plurality of recesses arranged on the surface of said printing roller (10a) for receiving printing fluid during a printing process rot...
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WO/2000/078548A1 |
The invention is a doctor blade system with clamping device for clamping a doctor blade, for example in a doctor blade chamber without using screws and without having to use tools. A clamping mechanism, preferably pneumatic, counteracts ...
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WO/2000/044981A1 |
A doctor apparatus (56) comprises a base (58) adapted to be fixed to a doctor back (10) and having a shelf (60) projecting forwardly therefrom. A compliant top plate (62) overlies the forwardly projecting shelf. The top plate has a rear ...
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WO/2000/009343A1 |
An electrostatic gravure printing method wherein use is made of paper with a water content of 4-6 % and a surface resistivity of 1.0x10?9¿-9.0x10?9¿ $g(V)/$m(c) under the environment of 23±1 °C and 50±2 % RH. This method can thus li...
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WO/2000/000296A1 |
The invention concerns a composite blade (1) comprising a substrate strip (2) providing the blade with its main mechanical properties, an interface coating (3), bonded to one surface of said substrate, and adapted on the other surface, i...
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WO/1999/060207A1 |
The invention concerns an equipment for replacing a doctor blade, a doctor blade, and a method in the use of band-like doctor blade. The equipment for replacing a doctor blade comprises a doctor blade (11) placed in a reel, which doctor ...
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WO/1999/042291A1 |
The invention relates to a sheet-fed letterpress rotary with printing units for multicolour printing and at least one coating unit. The aim of the invention is, among other things, to provide a sheet-fed letterpress rotary of the type de...
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WO/1999/021716A1 |
The inventive doctor blade for wiping away excess printing ink from the surface of a printing form (10) has a front section in the form of a blade (3) which interacts with the surface of the printing form (10). In order to avoid the surf...
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WO/1999/010175A1 |
The invention relates to a device for automatically loading processing stations (1) with printing cylinders (9). The invention provides for several loading stations (2) each configured as a receiving site for introducing the printing cyl...
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WO/1998/058802A1 |
For security printing of documents, in particular banknotes, by printing a sheet or web using intaglio technology, an ink image is applied to transfer rollers (6) using rotary screen printing technology, said ink image is transferred fro...
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WO/1998/050233A1 |
In an inking system for a printing machine by intaglio engraving, the ink pan (06), the collector pan (07) and the wiping blade device (03) are jointly height-adjustable.
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WO/1998/050232A1 |
In a rotogravure rotary press for multicolored first and second form printing, the material to be printed is alternately printed on the first and second form.
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WO/1998/043904A1 |
The invention relates to a method for electrostatic charging of both outer faces of at least one length of material with a charge of opposite polarity, before the processing of said length of material is continued. The length of material...
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WO/1998/043905A1 |
The invention relates to a method for electrostatically charging the two surfaces of at least one web with a charge of opposite polarity, before this at least one web is processed further. According to the invention, the web is fed throu...
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WO/1998/028140A1 |
The invention relates to a method for inking a cylinder (4) with highly viscous printing ink, in which an ink duct (1) that is open at the top is used with a doctor blade (8) that is fitted negatively on the cylinder (4). A reserve of pr...
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WO/1998/022286A1 |
The invention concerns a device for adjusting a doctor blade (1) in contact with a print roller (3) along its generator, in which the doctor blade produces a rotating motion about the print roller (3) which is centred about a rotation ax...
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WO/1998/018625A1 |
A rotary press doctor blade (12) in which one or both sides (19,21) are provided with a fully or partially unreleasable coating of a low surface energy substance (46), whose surface energy is between 10 and 60 mN/m. This prevents in part...
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WO/1998/014329A2 |
The invention falls within the sector of rotogravure printing presses and more precisely refers to the printing group (2) which is provided with a device (8) for adjusting a doctor (7) which acts on an impression cylinder (5). The adjust...
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WO/1998/003049A2 |
An electrostatic aid for rotogravure and flexographic printing can be driven with a voltage electrode (5a) of substantially reduced dimensions while maintaining the printing quality at a high level. The voltage electrode (5a), which is c...
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WO/1997/031777A1 |
Apparatus for use in a gravure press or other reproduction apparatus, comprising a roller apparatus which is at least partly electrically conductive and at least one electrical transfer device adjacent the surface of the roller and conne...
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WO/1997/024233A1 |
The method of printing involves forming a matrix of depressions on the surface of a form cylinder, filling the depressions with ink, removing ink from the depressions which do not form an image for reproduction, and transferring ink from...
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WO/1997/002955A1 |
A method and apparatus for making color filters for liquid crystal display panels. A transfer layer is formed on a collector roll, and a raised pattern corresponding to the desired black matrix pattern is formed on the transfer layer by ...
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WO/1996/033834A1 |
The invention relates to a clamping component for machines with rotary jaw chucks in which clamping jaws (5) of the jaw chuck (4) are radially adjustable in relation to the axis of rotation (3), in which the clamping jaws (5) are fitted ...
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WO/1996/004140A1 |
In a printing press having a chamber body (14), a doctor blade clamping assembly includes a leaf spring (38) having a plurality of leaves (40,42) assembled together in overlying relation to each other, the leaves being of different lengt...
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WO/1995/029812A1 |
An electrostatic assist roller (30) for use in a coating, printing or copying machine includes a cylindrical roller core (35), and a ceramic layer (38) formed by plasma spraying a blend of an insulating ceramic material and a semiconduct...
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WO/1995/015853A1 |
A doctor blade arrangement for web-fed gravure rotary presses with a chromium-plated copper cylinder is characterized by a doctor blade made of copper or an alloy containing predominantly copper. The roughness of the cylinder surface is ...
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WO/1994/023951A1 |
A thin film forming apparatus comprises a printing device including an intaglio roll (A) having a number of ink cells, ink supply means (B) provided with a doctor blade (B2) and adapted for filling the ink cells with ink, a printing roll...
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WO/1993/021015A1 |
In a rotary printing machine the form cylinder (1) is supported on a flexible band (6) under tension, printing ink being introduced into the gap (8) between the band (6) and the form cylinder. This facilitates hydraulic mounting of the f...
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WO/1993/002863A1 |
A thin film forming device comprising an intaglio printing roll (3) having a number of ink cells (3a), an ink supplying device (5) for filling ink into the ink cells of the intaglio printing roll, a printing roll (4) having a raised port...
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WO/1991/018743A1 |
The process permits programmable printing of variable information in rotogravure quality on a print material (34). The printing ink carrier (2) is a step matrix. The quantity of ink supplied by each grid point of the step matrix can be c...
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WO/1991/016206A1 |
Process for recycling inks contained in an aqueous wiping solution following their regeneration. These inks are used for the printing of security documents employing an intaglio printing technique. After the wiping solution is neutralize...
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WO/1990/011188A1 |
For directly and effectively determining, the hollow volume of a screen, or of absolute and relative ink releasing factor of inking rollers, particularly for flexographic printing, at least the penetration of at least a plastic or at lea...
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WO/1989/001409A1 |
An apparatus for printing quasi-random numbers in a rotogravure press having a plurality of printing stations with different size printing cylinders (7, 11, 13, 17, 19, 23). A photoelectric cell (10) disposed adjacent each cylinder detec...
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WO/1988/006101A1 |
Rewinding and detecting end marks (3, 3A) by a light-reflecting ink are gravure-printed near the trailing end of a thermal transfer recording sheet (1) produced by disposing a heat-fusible ink layer (1b) on the surface of an elongated ba...
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WO/1986/007309A1 |
A scraper or doctor blade (7) in the shape of a chamfered, coated steel strip (8) for smoothing out a coating material on a continuous paper web or for the scraping clean of rollers. According to the invention at least a part (9) of its ...
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WO/1984/003068A1 |
A method and associated apparatus for applying a charge directly to an impression roll (12) which engages a gravure cylinder (14) of an electrostatic assist gravure press, wherein the improvement comprises the steps of placing a pluralit...
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WO/1983/000658A1 |
An impression roller (10) with an insulated core (17), with an outer layer (19) of resilient semiconductive material, and with a set of conductive wires (20a-20h) extending along its length and out one end for interconnection, to adjust ...
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WO/1983/000656A1 |
A doctor blade assembly for a rotary printing machine has a mounting (1) on the frame of the machine and a plane doctor blade (11) supported by the mounting (1, 6) with its plane radial or nearly so to the cylinder (12), the blade (11) b...
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WO/1983/000655A1 |
For fitting a strip-like flexible metal doctor blade (4) into the usual clamp means (1, 2) of a rotary printing machine there is used a guide (5) having first and second stop surfaces (5a, 5b) which are linear and parallel, and are space...
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WO/1980/000551A1 |
A cylindre is placed on two pillars (10, 11) with adjustable spacing, comprising two supports (12, 13) adjustable in elevation. The control (31, 33, 34) of the supports (12, 13) and of the pillars (10, 11) comprises an angled transmissio...
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JP2024022544A |
The present invention improves the performance of an apparatus for changing printing sleeves. The method includes a handling device (2) that can be removably engaged with a printing sleeve and a motion robot (4) for moving the handling d...
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JP2024022543A |
The present invention improves the performance of an apparatus for changing printing sleeves. An apparatus (1) for changing a printing sleeve, comprising a handling device (2) that can be removably engaged with the printing sleeve, and a...
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JP2024506350A |
[Solution] A doctor roll assembly for use in a can decorator's ink station assembly to transfer ink from a fountain roll to a distribution roll. The doctor roll assembly has an elongated shaft member and a plurality of segments selective...
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JP7424791B2 |
To provide a drying suppression device which can effectively suppress drying of a roller surface in a flexographic press with use of a water-color ink or the like.Humidification gas generating means (4) is provided along a longer directi...
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JP2024005964A |
[Problem] To check whether the cylinder used for gravure printing matches the manufacturing specifications of the printed product. [Solution] In a gravure printing machine in which a cover 4 for preventing ink splashing is provided on th...
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JP7406049B2 |
In some examples, an ink feed system for providing and feeding printing ink to an inking unit of an intaglio printing unit includes an inking device in the inking unit for inking a first inking unit cylinder. A provision device includes ...
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JP2023172865A |
To provide an auxiliary device that enables a worker to easily handle a transfer roller alone.A lifting/lowering device 10 includes: a base portion 11; a vertical frame 21; a guide rail 31; a lifting/lowering member 41 that is lifted/low...
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JP7380472B2 |
To provide a printer which can improve printing accuracy of a print pattern transferred to a sheet.A printer 1 of the present invention includes: a plate cylinder 10 which has a recessed part 12 with a print pattern 3 shape formed on an ...
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