Abstract: In an intaglio printing method, the steps of providing a novel intaglio inking plate having a surface and means for producing different prescribed patterns of shallow depressions therein, producing a first prescribed pattern of depressions in said surface, filling said depressions with ink, transferring ink from the pattern of filled depressions to a transfer surface, altering the surface to provide a second pattern of shallow depressions therein and then repeating the step of filling the depressions with ink and transferring an ink pattern to a transfer surface.

Abstract: A shallow depression in a printing plate is filled with a viscous printing medium. Then, a transfer surface having the desired geometric pattern contacts the printing medium and thereby coats the surface with the medium. The coated transfer surface is then contacted with a receiving surface whereby medium in the desired pattern is transferred to the receiving surface. This method can be practiced with the same plate and at the same time as another, different transfer printing method.

Abstract: A printing member has a print surface formed of a blend of urethane and acetal polymers and is particularly suitable when it is to be engraved by laser engraving to form an intaglio print surface.

Abstract: An improved reinforcement member for a central aperture in a flexible recording disk and a method for forming the same. The improved reinforcement comprises an integral, annular-shaped ring formed on one or both sides of the flexible recording disk about the central aperture thereof. This improved reinforcement is formed by transfer printing a liquid image of the reinforcement member onto a side surface of the flexible recording disk and then subsequently solidifying that liquid image. The liquid image to be transfer printed onto the flexible recording disk is first established by filling a metering reservoir shaped to be an image of the reinforcement member with a solidifying liquid. A terminal end of compliant rubber tampon is then first contacted to the reservoir thereby picking up the liquid image which is then contacted to the surface of the flexible disk to be deposited there.

Abstract: A process for producing novel resinous gravure printing plates comprises coating on a printing substrate such as a cylinder a radiation-curable resin coating composition containing in a specific ratio a soluble polyamide resin and a radiation-polymerizable monomer or the like dissolved in a solvent, curing the coated film by irradiation with actinic rays, and engraving the resulting cured film. As a result, a novel resinous gravure printing plate having excellent engraving property, printing durability, and solvent resistance is produced.

Abstract: According to this process, a plurality of translucent monochrome supports of different colors are prepared. Each support is constituted by a transparent film coated on one side with a coloring matter. Then an elementary pattern is made by a selective scraping with a tool. By superimposing the engraved monochrome supports a final image is obtained by transparency which is the synthesis of the elementary patterns. The process lends itself particularly well to three-color or four-color printing.

Abstract: The process of displaying indicia on a panel includes forming a panel with a substratum of a first selected material and at least one superstratum of a second contrasting material attached to the substratum. At least the superstratum is meltable, and preferably both layers are formed of tough, pliable, weatherproof plastic such as polyurethane. A heated indicia-forming tool is pressurally applied selectively to the superstratum to melt localized portions of its material throughout its thickness and force it out of the path of movement of the tool, leaving corresponding portions of the substratum exposed to define indicia with a contrasting background. The method can include also melting a portion of the substratum, having a contrasting color to the superstratum and causing a portion of the substratum to flow up over the melted raised portion of the superstratum along the edge of the melted area to form highly visible indicia on the panel.

Abstract: A fluid metering or anilox roller whose surface is generally covered by spaced fluid retention cells and channels connecting serially adjacent cells in staggered adjacent series of cells extending around the roller, the channels being narrower than the cells.

Abstract: The invention is for color separation orientation gauges and methods by which they are used to produce a finished print in more than one color, the colors used being the primary colors and black. In the printing trade, the primary colors are at times referred to as magenta, yellow, and cyan. The color magenta is basically red, cyan is basically blue and, of course, yellow is basically yellow.The gauges utilized are provided with a predetermined number of dots disposed at various angles depending, for example, on the color to be eventually printed, which gauges are superimposed on a half-tone mask of which there are also a predetermined number of dots which are practically invisible to the naked eye. The gauges of the two embodiments of the invention are provided with special reference line dot densities and angles and legends to provide the color stripper with easy to use compact gauges for producing multi-color prints.

Abstract: An engraving board for printing a design with coloring media comprising, a first or thick paper layer with a second or thinner paper layer overlaying the thick paper layer and secured thereto. A printing layer comprising a multiplicity of densely packed short fibers overlays the thin paper layer and is secured thereto. The three layers can be secured to each other by means of water resistant adhesive and both the thinner and thick paper layers can comprise water absorbent material so that when a design is impressed upon the printing layer, exposing a portion of the thin paper layer, the coloring medium which is applied over the engraving board is absorbed into a thinner paper layer leaving the coloring medium on the remaining printing layer only to be used in printing the design.

Abstract: A method for manufacturing a phosphor screen for a color picture tube is disclosed which comprises the steps of transferring an ink pattern contained on an intaglio having a surface comprising ink receiving portions with a depth of 10.mu. or more, said ink containing 15 to 90% by volume of phosphor powder, by rotatably moving at a first speed a transcriber having a cylindrical surface covered with a layer of a soft material along the surface of the intaglio in order to apply the ink pattern onto the cylindrical surface of the transcriber and transcribing said ink pattern from said transcriber onto an object to be printed for a color picture tube by rotatably moving the transcriber at a second higher speed along the surface of said object.

Abstract: Plastic webs, including webs of rigid and plasticized PVC, can be printed at high speed on conventional rotogravure presses with an ink whose vehicle consists of polyalkyl acrylate and polyalkyl methacrylate binder dispersed in a homogeneous, aqueous solvent in a weight ratio of 100:3 to 100:25. The imprints adhere well and resist abrasion.

Abstract: A method of producing a graphic pattern and a graphic pattern for imprinting substrates, such as documents, especially paper currency, stamps or the like, with lines in the form of lengthwise extending color mounds or peaks is disclosed. There is provided a line grid or pattern which is substantially uniform at least in given field sections and comprises relatively closely juxtaposed non-intersecting and non-contacting lines. The ratio between the height and the spacing of the color mounds forming the lines is selected such that when viewing the pattern below a predetermined boundary inclination angle the base of the valleys between the color mounds or peaks is not visible.

Abstract: A heat printing sheet having a pattern of a hot melt ink composition on a base, the improvement comprising using a hot melt ink composition which comprises 5-60 wt. parts of a base polymer of ethylene-vinyl acetate copolymer having 5-50 wt. % of the vinyl acetate content and 4-1000 g/10 min. of a melt index or a mixture of said ethylene-vinyl acetate substituted with 10-60 wt. % of the other polymer; and 20-80 wt. parts of a tackifier selected from terpene resins, hydrogenated dicyclopentadiene resins, lower styrene resins, rosins, rosin polyol esters, hydrogenated rosin and rosin polyol esters and alicyclic hydrocarbon resins and 0.1-30 wt. parts of a pigment or dye, and the hot melt ink composition is melted at 80.degree.-250.degree. C and is coated on an engraved roll and is instantaneously printed on a base of synthetic polymer film having 10-100 of a thickness and smooth surface under 0.5-10 Kg/cm.sup.2 (gauge) to form the pattern of the hot melt ink composition having 10-3000 of a thickness.

Abstract: A fluid injector unit, functioning as a pump-type injector unit through cooperation between an upper and lower press platen, being easily disassembled into a minimum number of parts for cleaning. Disengagement of a unitary assembly comprising a piston collar for supporting a main piston through biasing means therefor from a housing member containing a pump chamber results in easy access to those parts requiring cleaning without disassembly of parts external to fluid passages which do not require cleaning.

Abstract: An intaglio printing plate is prepared by coating a copperplate-engraved plate having a superficial chromium layer with an ink-accepting material such as a hardenable epoxy or acrylic resin, an enamel varnish, or a chemically or electrolytically deposited metal, and removing said layer from the non-grooved parts by treatment in a ball-graining machine. The ink-accepting material remaining in the grooves forms concave recesses suitable for wet offset printing with the precision, complexity and fineness of a copperplate design.

Abstract: An imprint of inked intaglio pattern elements such as lines on a document of value or the like, including background portions and readily recognizable image portions each formed by pattern elements of the imprint. The pattern elements forming the image portions differ in orientation or depth from pattern elements forming the background portion to provide variation in contrast between image and background with change in angle of view of the document, the pattern elements being so arranged that the image blends visually with the background from one angle of view but appears as a readily recognizable symbol in clear contrast to the background from another angle of view.

Abstract: A method of making a printing plate for intaglio printing having text characters and/or other indicia recessed therein for receiving printing ink which has a plurality of relatively thin barriers separating the text characters into a plurality of ink wells and defining surfaces for supporting a doctor blade during printing, the support surfaces intersecting the edges of each of the text characters at generally right angles and intersecting other supports at generally right angles to improve the quality of the printing of the text characters by minimizing the non-printing areas within the edges of the text characters and effectively retaining the shape of the edges of the characters, and a film or other photographic product for use in making such plates. The doctor blade supports are also designed to compensate for uneven material removal by chemical etching or the like so that the thickness of the supports are more uniform to minimize the non-printed areas within the edges of the characters.

Abstract: A novel printing master and method for producing the same as disclosed, which comprises coating a suitable substrate with an uncured silicone gum, followed by the adherence thereto of a particulate image pattern. Resultant curing of the gum converts the gum to a tough elastomeric ink releasable film, thereby fixing the integral particles to the film while in intimate contact therewith. After curing, substantially all of the deposited particles are removed from the elastomer film, thereby revealing a "porous" image in the ink releasable film, of surprising ink receptive characteristics. The porous image thus is formed by contact of the integral particles of varying geometric shapes and sizes with the uncured silicone gum, thereby creating "impressions" of the particles in the gum which are then permanently stabilized in the gum by curing of the gum to an elastomeric film.

Abstract: A novel printing master and method for producing the same is disclosed which comprises the coating of a suitable substrate with an uncured silicone gum composition containing an activating proportion of a "blowing" or "foaming" agent. A particulate image pattern such as a toner image pattern, is transferred to the uncured silicone layer, followed by curing of the gum to an elastomeric ink releasable film. Activation of the "blowing" agent occurs during curing of the silicone to cause imagewise "foaming" of the silicone layer. After removal of the deposited image pattern, a "foamed" image is formed which is ink receptive and provides an imaged printing master suitable for use without a need for aqueous dampening solutions to provide ink release in non-imaged areas of the master.

Abstract: The invention relates to relief plates for flexographic printing comprising a relatively soft elastomeric base (U) having a modulus of elasticity of from 10 to 200 kg/cm.sup.2 and a thickness of from 0.5 to 6 mm and, firmly bonded thereto, a thin, relatively hard, difficultly soluble intermediate layer Z having a modulus of elasticity of from 1 .times. 10.sup.3 to 2.1 .times. 10.sup.6 kg/cm.sup.2 and a thickness of from 5 to 500 .mu. and, firmly bonded to said intermediate layer Z, a relief layer P' consisting of a photocrosslinked elastomeric mixture having a modulus of elasticity of from 30 to 2000 kg/cm.sup.2 and a thickness of from 200 to 300 .mu., the modulus of elasticity of the photocrosslinked relief layer P' being the same as or higher than that of the base U and the neutral surface of the relief plate lying in or near the intermediate layer Z. The invention also relates to photosensitive laminates for the production of such plates.

Abstract: Intaglio Printing with a viscous fluid on to non-porous substrates using intaglio plates in which the image cavity is vented to the outside through non-return valve means, thus permitting the escape of air trapped between the non-porous substrate and the image cavity as well as excess fluid which is also restrained from being drawn back into the deposit on withdrawal of the plate. Particularly suitable for printing sealants on selected areas of gaskets.

Abstract: A process for preparing a waterless lithographic printing master is provided. A suitable substrate which is preferably ink accepting is coated with a silicone which is curable at low or ambient temperature and which contains in addition to its own catalyst a high temperature catalyst. The silicone is then cured at least on its surface to render it nontacky. A particulate image pattern is deposited on the cured silicone which pattern comprises a material which at elevated temperature combines with the high temperature catalyst to degrade the cured silicone below said image pattern, the composite heated to degrade the silicon below the image pattern and render the nonimaged areas ink releasing to the extent the silicone was not previously rendered ink releasing, and the particulate image pattern and preferably the degraded silicone removed beneath said pattern to reveal the ink accepting substrate in image configuration.

Abstract: A process is provided for forming waterless lithography printing masters comprising depositing a particulate image pattern on a non-tacky rubbery uncured silicone polymer, converting the non-tacky polymer into a softened gummy state and curing said softened polymer to fix the toner thereto.

Abstract: Method for making sheet materials are disclosed having a layer or layers of a non-uniform thickness, in particular a method of making sheet materials tapered from a maximum thickness near one and to a minimum thickness near the opposite end; and sheet materials prepared by such methods. The preparation of photographic film assemblages is disclosed including a first sheet material including at least one photosensitive layer and a second sheet material in super position therewith, which assemblages are adapted for forming photographic images viewable as reflection prints without separation of the respective sheet materials.