Abstract: A heat mode type lithographic printing plate precursor which can be directly mounted on a printing press without development processing after scanning exposure for a short time to conduct plate-making, has excellent press life and also gives few print stains onto a printed face, which comprises a substrate having provided thereon an image recording layer containing fine light-heat convertible particles which are coated with a hydrophilic material, the layer being made hydrophobic by the action of heat.

Abstract: An offset printing method comprises the steps of: a process for suspending a sheet-shaped or belt-shaped blanket by supporting both ends thereof at the leading and trailing ends thereof in the printing direction; and a process for performing ink reception from a plate to the blanket and also transferring ink from the blanket to a work, by pressing the blanket by a pressuring jig from an upwards direction down onto a plate or work situated below and sweeping in the printing direction. An offset printing apparatus is configured so as to carry out this method.

Abstract: A printing method includes printing an ink with a lithographic printing press having a printing plate, stopping the printing press, and applying a plate conditioner to the printing plate. The plate conditioner contains a liquid having hydroxyl functionality and a solid organic compound that is at least partially soluble in the liquid having hydroxyl functionality. The method is especially advantageous when the ink is a single fluid lithographic ink containing an emulsified or dispersed fluid phase.

Abstract: There is provided a plate material for printing method based on wettability change. The plate material is comprised of a substrate and a recording layer including at least two polymers having a first polymer and a second polymer surrounding the first polymer. The first polymer has a changeable property of a receding contact angle and is comprised of a copolymer including perfluoroalkyl-containing acrylate or perfluoroalkyl-containing methacrylate. The second polymer has an oil-absorptive character defined as an area ratio determined in the specification and is comprised of a urethane polymer. The printing plate according to the present invention exhibits excellent ink-releasability and no toning during printing operation.

Abstract: A protective pocket (10) is formed from a bottom sheet (11) adhesively bonded to a top sheet (12) to form a pocket therebetween. Adhesive pattern (13) is placed onto the sheets (11, 12) by otherwise conventional printing techniques.

Abstract: A low cost, reusable electric paper that uses ferrofluidic colored fluids and an external magnetic writing instrument. The paper can be formed from laminated rolls of polymeric media that are roller die cut, inked, aligned, bonded and cut to an appropriate size. The paper is formed from layers that define a hidden reservoir and a visible reservoir for each of an array of print cells that form a grid on the paper. A ferrofluidic coloring fluid is permanently contained within the paper and can move from the hidden reservoir to the visible reservoir. The size of the cells define the resolution of the paper. Initially, the paper appears white. However, after passing a writing instrument, such as a stylus, over desired print cells, these cells switch from a first hidden bistable state to a second visible bistable state. In the second visible bistable state, the ferrofluidic coloring fluid forms a desired image in a desired color or colors.

Abstract: A plate making apparatus of a flexible plate material 13,22 being placed on a plate cylinder 7 for executing planographic printing in multiple colors. The plate making apparatus has a cutter 23 being placed between a storage section 21 of a roll-like plate material and an exposure section 25 for cutting the roll-like plate material like a sheet and punch means 30 for making plate cylinder engagement holes 14a and 14b in the left and right margins of the plate material along the transport direction thereof, the plate cylinder engagement holes to be engaged in protrusions 7a and 7b disposed in the circumferential direction of the left and right margins of the plate cylinder. Accordingly, it is possible to provide a plate making apparatus which reliably holds a plate material on a plate cylinder for enabling planographic printing and can use a roll-like plate material.

Abstract: A light sensitive planographic printing plate have deposited particles on a sensitive layer, each of the said deposited particles comprising a protuberant or bulging portion and a substantially flat base portion spreading around the said protuberant or bulging portion, the said both protuberant or bulging portion and flat base portion being formed integrally with a same material.

Abstract: The present invention relates to pastes for the coating of substrates, consisting of powdery materials present in liquid dispersion from the group of the metals, metal compounds and/or metal alloys and/or boron and/or carbon, methods for manufacturing them and their use.

Abstract: Two sided electric paper that can be written onto on both sides by having a layer of conductive material between two sheets of electric paper. The electric paper is made of small balls encased in a liquid so that they are free to rotate, and then suspended in a solid substrate. Each ball has two hemispheres, one white and one black, each hemisphere also having a different electrical quality. Thus, in an electric field, the balls can be made to rotate to create an image of black and white areas. The intermediate conductor electrically isolates each sheet of electric paper so that both sides can be written onto at the same time.

Abstract: To provide an electrically controllable printing form, on which the printing image is retained even upon repeated application of printing toner or printing ink formed of toner suspended in a carrier liquid, the printing form (10) has a surface layer (12) of ferroelectric material or, if a gravure form (40), the cells (31) have a bottom (32) of ferroelectric material. The form is programmed under control of a control unit (13, 13') by an electrode (14, 14') which selectively polarizes the ferroelectric material. Upon application of electrically charged toner or ink, the ink or toner particles which are charged oppositely to the polarization of the ferroelectric layer or bottom will be retained, the equally charged particles repelled, so that, by selective positive or negative polarization, two-color printing can be effected at one pass of a printing substrate over the form.

Abstract: A direct-to-press imaging system for use in lithographic printing wherein a master-image printing cylinder is used with separate application of ink and water onto its surface to enable repetitive conveyance of image-formatted ink films onto substrates for printing purposes. The imaging system inlcudes a master-image printing cylinder adapted for receiving a hydrophilic coating layer on its surface and a device for laying down a uniform layer of hydrophilic material on the surface of this cylinder. An apparatus is also provided for applying oleophilic materials in image-formatted patterns on top of the layer of hydrophilic material on the master-image printing cylinder to form a printing structure having separate hydrophilic and oleophilic areas of the format to be printed.

Abstract: In order to create a thermal regulator for a printing form (2) for anaqueous offset printing, a blast box (3) is provided for the blowing of the printing form (2) with tempered air, in which fans (4) and a cooler (5) are mounted, which is supplied from outside with a coolant (7) from a cooling installation (6), the cooling of the cooler (5) being regulated in dependence on a temperature of a regulator (8).

Abstract: Printing ink vehicles including an emulsion of a mineral oil, preferably a light mineral oil; a significant amount of water; and an emulsifying agent including an amine or alkali metal salt of an oxidized hydrocarbon wax. Printing inks incorporating the vehicles include the vehicle together with a coloring agent such as a pigment.

Abstract: For modifying the printing image on a printing image carrier within a printing press the printing image carrier is in the form of a material with ferroelectric properties. Electrodes with or without heat sources are used to delete and write matter on the printing image carrier by polarizing and depolarizing the respective parts of the printing image carrier or the ferroelectric material. The depolarized material is hydrophobic so that it accepts the printing ink whereas the polarized parts are hydrophilic and accept water.

Abstract: A dry-printing process which employs a photopolymer film and two toners, one for generating a master and a second for image transfer.

Abstract: A duplicator machine is operative for making copies of originals, printing forms, and the like, in whole-page, paragraphwise and sectionwise modes of operation. The copies made are intended for different uses and or destinations, for example for handling by different clerical departments and/or sections of a factory. The duplicator machine is provided with means for applying routing markings, the marking means being located in the path of travel of copies passing through the duplicator machine upstream of the delivery station to the end of such path. The marking means applies to the copies distinguishable routing markings respectively indicative of different purposes or destinations for the copies being made. Within the path of travel of the copies through the duplicator machine, the routing markings are applied either downstream or upstream of the location at which the information on the original or printing form to be copied is actually applied to the copying material.

Abstract: A transmission system for a high speed cigarette packeting machine of the type on which the arbor is made up of a number of movable parts, comprises a train of gears that mesh with one another, a motor for operating the gears in a continuous fashion, and a plurality of shafts constantly caused to rotate by the aforementioned gears. Operating mechanisms of the machine are distributed throughout a wrapping line which extends along a sinuous, undulated path. The mechanism are connected to the rotatable shafts, from a part of which some of them take intermittent motion through Geneva mechanisms, and from the other part of which the other mechanisms take reciprocating motion through eccentric transmission devices.