Abstract: A lightweight portable compact flexographic universal printer coater adaptable to printing units on the same press or other presses of the same nominal printing width. The printer coater has a frame which comprises an anilox roller, a means to rotate the anilox roller at or near the surface speed of the rotating printing surface, a liquid film supply for replenishing the liquid film on the surface of the anilox roller, and a positioner device to place the printer coater between the on and off-impression positions. The printer coater apparatus is placed onto at least one pair of fixed supports mounted on the printing press frame so that the positioner apparatus can place the printer coater between an on and off-impression position. Spacers of selected widths may be mounted between the fixed supports and the interior surfaces of the press frame to compensate for slightly varying press frame widths associated with different press manufacturers.

Abstract: A coating system for supplying a coating medium to sheet material in a printing press. The coating system includes a tempering system operable for influencing the temperature of both a coating medium processed through the applicator system and rinsing mediums supplied to the applicator system for cleaning the system. The tempering system includes and intermediate container connected to the metering system of the applicator system, a first storage container connected to the intermediate container for containing a stored quantity of coating medium, and a second storage or discharge container connected to the intermediate container for a rinsing medium. The intermediate container includes a heat exchanger such that upon selected connection of either the first or second storage containers to the intermediate container, the cleaning medium or the rinsing medium can be individually tempered for optimum processing.

Abstract: A chambered doctor blade apparatus provides an automatic system for cleanup and replacement of coating substance, as well as operating a hydraulic head loading system that includes hydrostatic compensation, and integrates the head loading mechanism into the automated cleaning, flushing and replacement cycle. A programmable logic controller (PLC) is connected to a touch screen display that presents an interactive graphical user interface for control purposes. The PLC is programmed to carry out sequentially the required steps for cleaning, refilling, and running the chambered doctor blade assembly, and to alternate water-based and non-water-based coatings without necessitating removal of the doctor blade head from the transfer roller. Each coating run begins with a purge step in which a new coating material is pumped through the system to waste to remove any residual material from the previous coating run.

Abstract: A system and method for finishing a series of golf balls is disclosed herein. The system automatically transfers each of the golf balls from station to station on the system. The system has at least one coating station that has at least one spray gun that moves in relation to a golf ball being conveyed through the coating station. The spray gun moves in a track extending from a position below the golf ball to a position above the golf ball. The system has a transfer means that includes a series of transport pucks. Each transport puck has a plurality of shafts with spindles attached to the top of each of the shafts. Each spindle holds a golf ball for processing through the system. The spindles are rotated at relatively high rates during the coating process. In order to reduce tip marks on the finished golf ball, the golf balls are transferred from each spindle utilizing a high pressure gas. The system may be used to coat each golf ball with a basecoat, an indicia and a topcoat.

Abstract: Various embodiments of a system and method for forming coated toner images on a web are disclosed. The coating unit can be employed off-line or in-line with a digital printing system. The coating is applied on already fused toner images and is subsequently cured by means of UV radiation. The resulting coated fused toner images have a reduced sensitivity towards mechanical interaction, e.g., rubbing, and towards water, solvents and sunlight. In addition, they yield a smooth surface with an even tunable gloss, independent of the amount of superimposed toner layers.

Abstract: A printing device includes an adhesive applicator for the application of a strip of adhesive to one or both sides of pages of paper adjacent an edge to be bound. A pinch roller drives the page past a print head which prints text and/or images onto the page. The adhesive applicator is situated adjacent the print head and applies the adhesive strip(s) to the pages as they move past the print head.

Abstract: A non-impact process and apparatus for coating printing cylinders with layers of a coating liquid, especially for coating flexographic printing sleeves with infrared sensitive layers.

Abstract: A device for application of coating powder in a process including a conveyor with an air permeable conveyor surface for conveying a base sheet in a direction of travel, wherein the base sheet is coated with at least one layer upstream of the conveyor, and a powder-applying device, arranged to apply coating powder onto the base sheet. A device for directing a jet of air towards the base sheet is also arranged downstream of the powder applying device such that the jet of air effectively removes any excess coating powder from the base sheet. A suction device is also arranged to create an under-pressure beneath the conveyor surface, causing the base sheet to be pulled towards the conveyor surface, and forcing the excess coating powder to pass through the conveyor surface.

Abstract: An official postal product, and a method and apparatus for making the official postal product. The official postal product includes a first image area having an official postal indicia a second image area having a personal image. A protective coating is placed over the second image area such that official cancellation mark placed over the second area will not permanently adhere to the personal image.

Abstract: The invention relates to a binding assembly for use with a digital printer having a support frame for mounting a printhead assembly and for printing on pages of media passing into the binding assembly including: a binding means mounted to the support frame, wherein the binding means is adapted to bind the pages along a line substantially perpendicular to the direction of travel of the page with respect to the support frame.

Abstract: A device for ensuring correct tooth engagement during coupling of an adjustable, first gearwheel to a second gearwheel of a printing-material processing machine, includes a first adjustment device for adjusting the first gearwheel in a direction towards the second gearwheel during coupling, and further includes a protrusion and a guide for guiding the protrusion during the coupling, the protrusion being disposed eccentrically to one of the two gearwheels and being connected to the one gearwheel, so that, during rotation of the one gearwheel about a central axis thereof, the protrusion is rotatable together with the one gearwheel.

Abstract: Product is printed in a combined printing process with two ink systems. The printing material is first printed with a solvent-based or radiation-curing ink and then with at least one offset-typical ink. The printing machine for the inline implementation of the novel process is a hybrid press, having a flexo printing unit and a downstream offset printing unit. A UV, electron-beam or air-stream dryer is integrated into the flexo printing unit, or a UV, electron-beam or air-stream drying unit is arranged between the flexo printing unit and the offset printing unit.

Abstract: A coating apparatus for applying a coating on to a photographic media. The apparatus includes a coating section for applying a coating on to a photosensitive media having an entrance and an exit. A first supply assembly is provided for supplying a first media of a first format adjacent the entrance. A retractable second retractable supply assembly and a retractable taking-up assembly is provided for supplying and taking up a second media of a second format, the second format being different from the first format.

Abstract: A chambered doctor blade apparatus provides an automatic system for cleanup and replacement of ink or coating substance, as well as operating a hydraulic head loading system that includes hydrostatic compensation, and integrates the head loading mechanism into the automated cleaning, flushing and replacement cycle. A supply pump, a return pump, and a plurality of lines are connected by electrically operated valves. A programmable logic controller (PLC) is connected through a display driver to a touch screen display that presents an interactive graphical user interface for control purposes. The PLC is programmed to carry out sequentially the required steps for cleaning, refilling, and running the chambered doctor blade assembly. The PLC is connected to each of the pumps and valves, and to the head loading valve of a hydrostatically compensated hydraulic head loading system.

Abstract: The present invention relates to a method of and an apparatus for producing a printed ink pattern on a tissue. The method comprises the steps of applying ink onto a first embossing roll, passing the at least two plies through a nip formed between the first embossing roll and a second embossing roll, and embossing the at least two plies in the nip and simultaneously printing the ink onto a surface of the plies being embossed which surface defines an exterior surface of the tissue. The apparatus comprises a first embossing roll and a second embossing roll, the first and second embossing rolls forming an embossing nip therebetween, and an ink applying device. The ink applying device is arranged to apply ink onto the first embossing roll at such a position that, simultaneously to the embossing of the at least two plies in the nip, the ink is printed in the nip onto the exterior surface of the plies being embossed.

Abstract: A fluid material application system is provided with an application deck for applying a fluid material that includes printing ink, adhesive or coating, a source of fluid material, a source of heat transfer liquid, and a heat exchanger. The heat exchanger includes a tube-in-hose ink heat exchange element having a fluid material carrying seamless tube located within a hose. The hose is adapted to be connected to a heat transfer fluid source so that a heat transfer fluid flows around the fluid material carrying tube to control and maintain the temperature of the fluid material in the tube at a generally constant temperature. The elongated heat exchange element may possess a winding type of configuration (e.g., it may be coiled or helically wound or may be laid out in a serpentine path) to define a winding flow path for the fluid material and the heat transfer fluid, and may be located within an enclosing structure to define an overall compact heat exchanger.

Abstract: A wax coating device for a wet type electrophotographic color printer is capable of preventing the coating operation when printed matter is not supposed to be wax-coated. The wax coating device includes: a coating roller rotatably disposed so as to be partially immersed in the wax of a wax tank; a pressing roller disposed so as to be in tight contact with the coating roller for pressing the printed matter passing between the pressing and coating rollers against the coating roller; a pressing roller spacer for permitting the printed matter to pass between the pressing and coating rollers by spacing the pressing roller apart from the coating roller; and a coating prevention section for preventing contact of printed matter with the coating roller when the printed matter passes between the spaced pressing and coating rollers by being selectively advanced between and withdrawn from the pressing and coating rollers in accordance with the operation of the pressing roller spacer.

Abstract: Four impression cylinders of first and second face-side coating units and first and second back-side coating units, and two transfer cylinders of a face-side drying unit and a back-side drying unit are arranged adjacently and nearly linearly in a paper flow direction. Above circumferential surfaces of the odd-numbered cylinders of these cylinders, the first face-side coating unit, the second face-side coating unit, and the face-side drying unit are arranged. Below circumferential surfaces of the even-numbered cylinders, the first back-side coating unit, the second back-side coating unit, and the back-side drying unit are arranged. Above the circumferential surfaces of the odd-numbered cylinders, a first face-side drying device and a second face-side drying device, each of which has one dryer, are disposed downstream of the first face-side coating unit and the second face-side coating unit, respectively.

Abstract: A sheet-fed rotary printing press having at least one unit including an impression cylinder and an additional cylinder assigned to the impression cylinder, the impression cylinder and the additional cylinder being relatively adjustable a spaced distance from one another, includes a sheet guiding device disposed on the additional cylinder for keeping sheets of printing material, which have been transported by the impression cylinder past the additional cylinder, away from the additional cylinder, once the spaced distance between the impression cylinder and the additional cylinder has been set.

Abstract: An ink jet printer is provided comprising a housing, an ink jet printing apparatus and a coating apparatus. The ink jet printing apparatus is located within the housing and includes an ink jet printing device capable of ejecting ink droplets onto a first side of a printing substrate which moves through the housing along a printing substrate feed path. The coating apparatus is positioned along the printing substrate feed path and spaced from the printing device. The coating apparatus applies a substantially uniform layer of coating material onto at least a portion of the first side of the printing substrate.

Abstract: An apparatus is disclosed for fabricating a laminate product having a pair of sheet materials spaced by a plurality of flexible parallel vanes which are secured to the sheet material so that planar movement of the sheet materials in opposite directions cause the vanes to shift between open and closed positions. The vane material is formed from a web of material by dyeing the material, drying the dyed material, applying spaced longitudinally extending lines of adhesive on opposite faces of the material, and cutting the material into a plurality of side-by-side strips with each strip having a bead of adhesive on each face and along opposite side edges. The cut material with adhesive applied thereto is taken up on a transfer roll and moved to a vane/strip handling station where the strips of material are processed and delivered to a laminating station in parallel overlapping relationship with each other.

Abstract: A method of manufacturing a composite security thread, e.g. for a bank note, is produced by coating aluminium film onto a polyester film and coating selected regions with magnetic material. Photoresist characters are next printed onto the magnetic material, and a chemical applied to remove the aluminium coating except where protected by the resist. An obscuring silver coating is then applied over the magnetic material, and a final transparent material applied as a barrier to reduce the risk of damage during subsequent processing.

Abstract: A process and device for making an electrode to be applied to the skin in which a carrier provided with an opening is stuck, on the side remote from the skin, to a tag portion which covers the opening. Adhesive is applied to the tag and/or the carrier only on a locally restricted partial region of their facing surfaces and the tag is adhesively secured to the carrier.

Abstract: Sheets to be coated with water-based coating material, for example a primer and a low adhesion backsize, are supplied from a feeder (1), in end-to-end overlapping relationship, to a dual coater (3) in which the sheets are coated individually on both sides. A sheet inserter (2) is provided, upstream of the dual coater, to insert sheets from a second supply into the sheets from the feeder (1). The dual coated sheets are dried as individual sheets or as a pseudo-web of overlapped sheets, The sheets are then overlapped, unless previously overlapped, and the direction of overlap changed, if necessary, to provide the trailing edge of each sheet on top of the leading edge of each succeeding sheet. The overlapped sheets are conveyed through an adhesive transfer station (7) where stripes (236) of at least partially dried adhesive are coated onto the dual coated sheets from a transfer belt (71).

Abstract: A device for applying powder to sheets passing sequentially through a printing press in a conveying direction along a conveyor route, the sheets being combinable into a sheet pile in a manner that one respective side of upper and rear sides of a respectively following sheet is situated opposite the other respective side of the upper and rear sides of a respectively preceding sheet, includes a device for generating a powder-bearing gas curtain associated with the conveyor route and formed of a carrier gas conveying powder particles, and for applying the powder of said gas curtain to the rear side of the respective sheets prior to the combination of the sheets into the sheet pile.

Abstract: An article having an electrical circuit component printed directly onto one side of a substrate includes the substrate and an electrical circuit component formed of a conductive liquid printed directly onto one side of the substrate. The electrical component is capable of performing its electrical circuit functions, as printed, and without the necessity for post-printing processes such as metal etching, catalytic ink activation, or electroless deposition.

Abstract: A sheet-fed rotary printing press having at least one printing unit with an impression cylinder includes a transfer cylinder assigned to the impression cylinder for onwardly transporting sheets printed thereby, the transfer cylinder having at least one gripper system and being formed with a cylinder-jacket surface assigned thereto, the surface being rigid and a full surface, and at least one unit of a varnishing, a numbering and an imprinting unit assigned to the transfer cylinder.

Abstract: A coating applicator is provided having a plate cylinder including a cylindrical body about which a coating plate is mounted in sleeve-like fashion. The plate is the type used in the flexographic printing industry, and is made of photosensitive, monomeric material. The longitudinal edges of the plate are mounted to the cylindrical body using a clamping mechanism which permits easy installation and removal. Even with relatively light pressure, the photopolymer plate releases a substantial portion of the coating material when the plate is applied to a workpiece. Consequently, the composition and secondary rollers may be spaced apart by a gap slightly smaller than the thickness of the workpiece. Because of this gap, coating material does not tend to be applied from the plate cylinder to the secondary roller, thus reducing the safety and environmental problems associated with cleaning the secondary roller.

Abstract: A device for perforating, die-cutting, cutting or creasing in printing machines comprises a supporting foil which at two of its opposite sides is provided with strips for mounting onto a rubber blanket cylinder of a printing unit, whereby a component for perforating, die-cutting, cutting or creasing is affixed to the supporting foil. An impression cylinder covered with a protection foil co-operates with the rubber blanket cylinder. The use of a relatively hard supporting foil instead of a rubber blanket allows for much cleaner and quicker perforation and punching, and the affixing of the perforating, die-cutting, cutting or creasing component to the supporting foil on the rubber blanket cylinder allows a much easier and more precise positioning of that component. As a result, the device can also be used in endless printing machines. Moreover, the use of an independent inner underlying blanket allows an exact calibration of the total thickness of the supporting foil comprising the working tools.

Abstract: In-line printing and coating method achieves high coat weights (e.g, over 0.7 lb./1,000 sq.ft.) characteristic of blister seal operations and/or high gloss and high scuff resistance requirements, substantially without deleterious slinging. A high volume of coating is applied to a substrate by a coating cylinder supporting a resilient coating transfer surface consisting of an array of laser engraved coating-carrying indentations having substantially equal volumes that are uniformly distributed. An impression surface is positioned adjacent to the coating cylinder, positioned to impress a substrate between the coating transfer surface and the impression surface. A supply roll has a surface for applying liquid coating to the resilient transfer surface. The supply roll surface and the resilient transfer surface are in pressure contact, and adjacent surfaces of the supply roll and the coating cylinder rotate in the same direction.

Abstract: The present invention pertains to a treating device 1, especially a rotating transverse gluing mechanism for high-speed, register mark-related paper or film webs 2. The movements of the transverse gluing mechanism 1 are synchronized with the web 2, and the transverse gluing mechanism has an independent synchronous drive 6 with a drive motor 7 and a regulating unit for this purpose. The electronic regulating unit compensates variations in the synchronism of the running web 2.

Abstract: Apparatus and process for directly printing an electrical circuit component onto a substrate includes structure and steps for providing a printing station, and for transporting the substrate to the printing station. Structure and steps are provided for printing, at the printing station, an electrical circuit component on the substrate using an electrically-conductive liquid. Preferably, the printed electrical circuit component is capable of performing its circuit function directly after printing, without the need for post-printing process steps such as etching, catalytic ink activation, electroless bath, etc.

Abstract: A stamp pad including a base part with peripheral walls surrounding and supporting an ink member, the walls having connector elements which enable a releasable engagement of multiple stamp pads in side by side relation to form an assembly of multiple pads with a substantially continuous ink surface.

Abstract: A hot melt material coating system (10) is provided, comprising (i) a rotary coater (12) driven by a motor (604); (ii) a rotary coater position, speed and direction indicator (610) operatively connected to the rotary coater and providing a signal representing the position, speed and direction thereof; (iii) a web position, speed and direction indicator (612) operatively connected to the web and providing a signal representing the position, speed and direction thereof; and (iv) a control system (600).

Abstract: An improved coating apparatus which uniformly applies inks and other compositions onto substrates. The apparatus has the facility of an automated washing cycle for cleanup between different coating compositions. It includes an applicator for applying a liquid to a substrate; a supply pump which draw the liquid from a reservoir to the applicator means; a return pump which draw the liquid away from the applicator to a drain or back to the reservoir; and a flow controller which independently controls the pumping action of each of the supply pump and the return pump such that a return pumping force is maintained which is greater than an applied supply pumping force. The pumps and a series of three-port valves are automechanically adjusted to sequentially cause the apparatus to draw a liquid from a reservoir and direct the liquid to the applicator, drain the liquid from the apparatus, circulate a cleaning solution about the apparatus and drain the cleaning solution from the apparatus.

Abstract: The print image device according to this invention is comprised of a rotatable member with an excessive ink removing liquid applied to the surface, which does not dissolve in a printing ink forming a print image and has a lower surface tension than that of the printing ink; a facing member for bringing a printed surface of a printed body into contact with the excessive ink removing liquid on the contact member by nipping and carrying the printed body having been printed between the contact member and the facing member; a supply device for supplying the excessive ink removing liquid to the contact member; and a cleaning device for removing the excessive ink removing liquid with the printing ink, sliding in contact with the contact member. Furthermore, a mixture of the excessive ink removing liquid and the printing ink is formed at an upstream position in the rotating direction, i.e.

Abstract: A method is for curing ultraviolet light-curable coatings, inks or adhesives on heat sensitive substrates, wherein the substrates are coated and then passed under ultraviolet light. It includes reducing the temperatures of the substrates while being passed under the ultraviolet light by providing a shield at a location between the ultraviolet light and the substrates. The shield is substantially infrared light reflective and absorptive to prevent infrared light from reaching the substrates and is also substantially ultraviolet light permeable to permit ultraviolet light to reach the substrates. An ultraviolet light curing device utilizing the aforesaid shield is also described for curing ultraviolet light-curable coatings, printings and adhesives on heat sensitive substrates.

Abstract: A press for printing an electrical circuit component directly onto a substrate with an electrically-conductive liquid includes a press surface having a printing direction and a direction transverse thereto. A plurality of liquid-carrying cells are disposed on the press surface for carrying the electrically-conductive liquid, the cells being in liquid communication with each other in both the printing direction and in the transverse direction. A method of making such a press includes the steps of providing a press surface and engraving the press surface with the plurality of liquid-carrying cells which are in liquid communication with each other in both the printing direction and in the transverse direction.

Abstract: An expandable stamp pad comprising a plurality of ink pads arranged in a line and suitable for use with a multitude of different aqueous dye-based inks, and methods of using the same. Typically, the line is straight, although, if desired, the line may be curved. The plurality of ink pads are retained on an extension member that permits adjacent ink pads to contact one another when the extension member is retracted, (e.g., in use) while maintaining the plurality of ink pads in separation when the extension member is extended (e.g., in storage). Also, a multi-color stamp pad suitable for use with aqueous dye-based inks wherein a plurality of ink pads each impregnated with a different ink have disposed therebetween a thin, aqueous-impermeable film, such as a thin plastic film. Preferably, the stamp pad comprises more than two ink pads, further preferably five or more ink pads.

Abstract: A retractable in-line inking/coating apparatus can apply either spot or overall inking/coating material to a plate and/or a blanket on the first printing unit or on any consecutive printing unit of any rotary offset printing press. The inking/coating apparatus is pivotally mounted within the conventional dampener space of any lithographic printing unit. The aqueous component of the flexographic printing ink or aqueous coating material is evaporated and dried by high velocity, hot air dryers and high performance heat and moisture extractors so that the aqueous or flexographic ink or coating material on a freshly printed or coated sheet is dry and can be dry-trapped on the next printing unit.

Abstract: A method and device for raised letter or graphics printing, by means of a sprayed wet ink deposition on a print substrate. Subsequent dispensed thermographic powder thereon, with adherence of the powder only to the wet ink and heating thereafter, to a fixing temperature of the powder, results in the raised lettering or graphics. A standard portable ink jet printer of the bubble jet type, controlled, with graphics software control, by a personal computer, provides the requisite non-contacting ink deposition. The dispensing cartridge(s) of the ink jet printer is (are) provided with non-contact-drying ink formulations (with two or more separate colors, if desired) for the portion of graphics or printing which is to be in raised form. A thermographic powder dispenser and heating member is connected to the output of the ink jet printer, or integrated therewith for completion of the raised printing process.

Abstract: A method and apparatus for pumping and recapturing high viscosity paints. The apparatus comprises a double diaphragm pneumatic pump having means for controlling the air exhaust rate from the diaphragms to thereby reduce the diaphragm cycling rate. The decreased diaphragm cycling rate enables high viscosity paint to be drawn into the pump chambers and thereby avoids cavitation and increases the output flow rate. In a preferred embodiment, the bleed port, which vents air from the diaphragms to the atmosphere, is fitted with a needle valve, enabling the exhaust rate to be variably controlled. An alternative embodiment comprises a pump fitted with a valve received by the main exhaust of the air motor to thereby control the exhaust rate from the diaphragms. The pump system comprises a pump as described above and a four-port, two-way valve, which is rotatable by 90.degree., such that the flow within the system is reversed when the valve is rotated.

Abstract: An multicolor stamp pad comprising a plurality of ink pads arranged in a line and suitable for use with a multitude of different aqueous dye-based inks, and methods of using the same. The plurality of ink pads are retained on an extension member that permits adjacent ink pads to contact one another when the extension member is retracted, (e.g., in use) while maintaining the plurality of ink pads in separation when the extension member is extended (e.g., in storage). The multicolor stamp pad suitable may also have disposed between the ink pads a flexible, thin, aqueous-impermeable film, such as a thin plastic film.

Abstract: A hot melt material coating system (10) is provided, comprising (i) a rotary coater (12) driven by a motor (604); (ii) a rotary coater position, speed and direction indicator (610) operatively connected to the rotary coater and providing a signal representing the position, speed and direction thereof; (iii) a web position, speed and direction indicator (612) operatively connected to the web and providing a signal representing the position, speed and direction thereof; and (iv) a control system (600).

Abstract: A method and apparatus for pumping high viscosity paints. The apparatus comprises a double diaphragm pneumatic pump having means for controlling the air exhaust rate from the diaphragms to thereby reduce the diaphragm cycling rate. The decreased diaphragm cycling rate enables high viscosity paint to be drawn into the pump chambers and thereby avoids cavitation and increases the output flow rate. In a preferred embodiment, the bleed port, which vents air from the diaphragms to the atmosphere, is fitted with a needle valve, enabling the exhaust rate to be variably controlled. An alternative embodiment comprises a pump fitted with a valve received by the main exhaust of the air motor to thereby control the exhaust rate from the diaphragms.

Abstract: Device for processing a viscous fluid for finishing printing products in a finishing unit of a rotary printing press, the finishing unit having a plurality of rollers suppliable with the fluid at least at one feeding location thereof, and a plurality of cylinders suppliable with the fluid by the plurality of rollers, includes a device for collecting the fluid from the one feeding location thereof, the plurality of rollers including a metering roller engageable with one of the cylinders for feeding the fluid thereto, another roller of the plurality of rollers being in cooperative engagement with the metering roller and with the collecting device for feeding the fluid to the metering roller.

Abstract: The occurrence of offsetting and strike-through in a stencil printing device is prevented without creating any new problems, and the printing paper is allowed to be conveyed with a pair of rollers interposing the printing paper for a reliable paper ejection process. Printing paper P is passed through a nip between a contact roller 37 and a counter roller 39 opposing the contact roller 37, the outer circumferential surface of the contact roller being coated with a layer of excess ink removing liquid which does not dissolve with the printing ink forming the printed image and has smaller surface tension than the printing ink, and the contact between the excess ink removing liquid layer a of the contact roller 37 and the printed surface of the printing paper P causes the excess portion of the printing ink b deposited on the printed image of the printing paper to be transferred onto the excess ink removing liquid layer a so as to remove the excess ink from the printing paper P.

Abstract: A method and apparatus for coating a metallic substrate with an oily substance. Use is made of a support member having a ceramic coating comprising an oxide ceramic material, onto which is applied the oily substance to form a film of the oily substance uniformly covering the surface of the ceramic coating, the film of oily substance breaking down into micro-droplets having substantially uniform size and distribution. The micro-droplets of oily substance are thereafter transferred onto a surface of the metallic substrate without substantially altering the size and distribution of the micro-droplets, thereby coating the surface of the metallic substrate with the oily substance. The invention is particularly useful for coating the positive electrode of a high-speed electrocoagulation printing apparatus with an olefinic substance containing a metal oxide.

Abstract: A strip or roll of thermal transfer type recording sheet has a base film on one side of which a hot-melt ink layer is formed for recording on paper or other surface by thermal transfer. An end mark or marks to be detected optically for warning the user of the fact that the recording roll is being used up is/are formed adjacent one end of the strip by gravure printing with use of a light-reflective ink. The end mark or marks produced by gravure printing are of such constant thickness, and with the bounding edges so sharply defined, that they permit positive detection by an optical sensor.For the production of the end marks by gravure printing, a web of base film with the hot-melt ink layer formed on one side thereof, with a width several times greater than that of each strip of recording sheet to be manufactured, is fed through a printing unit of a gravure printing section.

Abstract: Air bubbles which are entrapped within the cells of an engraved applicator roller are displaced from the cells by wiping the surface of the engraved applicator roller with the bristles of a brush. An elongated brush mounted on a doctor blade head projects into a doctor blade reservoir. The bristles of the brush are disposed for wiping engagement against the engraved surface of an applicator roller which is wetted by liquid coating material. As the engraved applicator roller rotates in contact with the liquid material in the doctor blade reservoir, the bristles of the brush puncture the entrapped air bubbles and sweep the entrapped air away from the cells. The sweeping action of the bristles induces a relatively low pressure condition within the cells, which promotes the flow of liquid material into the cells.