Abstract: A two-color copying machine records an image on a recording sheet in two colors such as red and black by using thermally transferable red and black inks on ink donor sheets.

Abstract: A method for transferring an image from an image sheet to an image-receiving sheet while the sheets are superposed, and an apparatus therefor. A support plate of good thermal conductivity and rigidity is placed against the sheets, and a cover sheet superposed remotely from the support plate. The resulting assembly is passed through a pair of heated rollers. Cooling rollers may cool the superposed sheets following image transfer. Additional cooling may be provided.

Abstract: A stimulable phosphor sheet is exposed to an electron beam having passed through a specimen in an electron microscope to record a first magnified image of the specimen on the sheet. A stimulating energy is applied to the sheet for discharging light therefrom which represents the first magnified image. The light discharged from the image sensor is photoelectrically detected to reproduce the first magnified image which can be observed to attain a desired focused condition and/or a desired field on the electron microscope. Then, the same or another stimulable phosphor sheet is exposed to the electron beam to record a second magnified image of the specimen on the sheet, and the second magnified image is reproduced as a final image under the desired focused condition and/or with the desired field.

Abstract: A method and apparatus for developing and transferring an image from a sheet of thermally developing photo-sensitive paper N containing a mobile pigment to a sheet of print paper P containing a pigment fixer, comprising a thermal developer 4 of the photo-sensitive paper, means for overlaying the photo-sensitive and print paper, a heater 8 for transferring the mobile pigments from the developed photo-sensitive paper to the print paper, and a separator 54 for peeling apart the photo-sensitive and print papers.

Abstract: An ink transfer type of dot printer utilizes thermo-sensitive ink which is solid at normal temperatures, with selected portions of the ink being liquified by heating and transferred onto recording paper. Such a printer can be of contact or of non-contact (e.g. ink-jet) configuration, and eliminates the need to utilize disposable materials such as ink ribbons etc.

Abstract: A closed loop thermal recording system and method are provided for recording a grey scale image on a transparency type of thermally sensitive recording medium in accordance with electronic image signals. The application of thermal energy to the medium is controlled, in part, by a feedback subsystem that optically monitors pixel area density while recording is in progress. The recording system includes a light reflective background member, located between a transparent recording layer of the medium and a thermal print head, for improving the accuracy and reliability of the optical monitoring process.

Abstract: A thermal duplicating apparatus for forming a duplicate image of an original image by selective application of heat to a heat sensitive recording medium is provided. The present apparatus utilizes a flexible cylinder which is substantially transparent to the irradiated light ray. The flexible cylinder in effect rolls along the heat sensitive recording medium overlying an original in a flat state as pressed thereagainst to effect duplicating operation progressively from one end to the opposite end.

Abstract: A compact thermosensitive printing machine includes a paper supply guide extending obliquely into a housing to a printing roller at its lower end, and a discharge tray on top of the supply guide for receiving the copied paper face-up after it has passed around the printing roller.

Abstract: The present invention relates to data-carrier intended for the high-density recording of information by the use of an etching radiation beam. The data-carrier comprises a substrate upon which there are deposited a very thin film which is absorbent at the wavelength of the etching beam, and a film which is thermodegradable at a temperature lower than the degradation temperature of the absorbent film, the heat developed in the absorbent film being selectively diffused towards the adjacent thermodegradable film.

Abstract: A method for exposing a sheet to light radiation while it is under pressure, in which successive portions of the sheet which slightly overlap one another are sequentially clamped between a pressure plate and a light transmitting plate, and are irradiated with electromagnetic radiation through the light transmitting plate in the clamped condition.

Abstract: A plastic surface-printing method which comprises the steps of drawing an image on a plastic surface by an ink composition containing a coloring material; enclosing the printed plastic surface in a cover wherein there is placed a flash discharge tube; causing the flash discharge tube to emit light beams to irradiate heat pulses on the printed plastic surface; applying pressure on the printed plastic surface due to the expansion of air in the cover resulting from the application of heat pulses; and fixing an inked image on the plastic surface.

Abstract: Method of transfer printing for cellulosic textile articles by pretreating the article with a polyhydric alcohol, squeezing and drying the article, superposing the article with a transfer sheet printed with an ink containing a sublimable disperse dye and pressing the assembly under heating.

Abstract: A marking transfer sheet comprising an imaging layer of pigment, binder and a color-forming, radiation-sensitive component on a carrier film and a process for its use comprising exposing the imaging layer to a pattern of radiation to form a mark, heating the imaging layer until adhesive, and contacting the imaging layer with a support more adherent to the imaging layer than the carrier film; and optionally separating the carrier film from the imaging layer.

Abstract: Method of dye absorption into the surface of plastics is accomplished by placing polyolefin film between a dye transfer paper and a sheet of thermoplastic and applying pressure and heat thereto. The heat applied is sufficient to sublime the dyes through the film to the plastic sheet. The dyes are absorbed into the surface of the plastic with the design intact. The materials are then cooled and separated and a decorated plastic sheet or article with wear-proof design is obtained. Thermoset plastics are similarly dye penetrated in this manner during the curing thereof.In-mold dye decoration and penetration of thermoplastics and thermoset plastics are also disclosed.Further, post-pressure dye transfer to plastic sheets and plastic articles is disclosed.

Abstract: A device which may be operated in a mode of thermally perforating thermal stencils, and another mode of producing printed copies by employing the perforated thermal stencils, wherein the thermal stencils are provided as a particular type of framed assembly for employing a relatively viscous printing ink, the device having a base plate, a cushion plate, and a press plate pivotally mounted to the base plate and having an aperture covered with a transparent rigid plate and a light source unit mounted at the aperture for emitting flash light to the aperture.

Abstract: The present invention relates to data-carrier intended for the high-density recording of information by the use of an etching radiation beam. The data-carrier comprises a substrate upon which there are deposited a very thin film which is absorbent at the wavelength of the etching beam, and a film which is thermodegradable at a temperature lower than the degradation temperature of the absorbent film, the heat developed in the absorbent film being selectively diffused towards the adjacent thermodegradable film.

Abstract: A composite material for forming graphics such as letters or numbers. The composite material includes a layer of latent adhesive material, a mono-layer of granules lightly adhered to a donor web, and a thin layer of bonding material between and in face-to-face contact with the layers of granules and adhesive. The layer of bonding material maintains the adhesive and granular layers in close proximity and excludes air from therebetween. When the composite material is selectively heated in graphic patterns, corresponding portions of the bonding layer melt; and corresponding portions of the adhesive material and granular layer soften, absorb the melted portions of the bonding layer and adhere together. Upon subsequent separation of the layer of adhesive and the donor web the remaining portions of the layer of bonding material separate, whereas granules transfer to the accepting tape in the heated areas to provide the graphics.

Abstract: An improvement in carrying heat away from the drum in a thermographic duplication apparatus. The drum is formed of two concentric shells, the outer being only a segment of a cylinder.

Abstract: A color source sheet consisting of a thin porous paper receptive to printing ink, typewriter, pencil copy, electrostatic copiers, etc. and having on one surface a thin uniform coating comprising rubber binder, particulate heat-volatilizable dye and particulate filler which is non-absorptive of the dye. The dye is transferable by thermographic heating at temperatures readily available in commercial thermographic copying machines.

Abstract: A stencil sheet of the type including an ink-impervious coating of a heat-flowable composition on an ink-pervious base sheet includes two layers of the composition on the base sheet, the first layer having external surfaces made uneven by the unevenness of the underlying base sheet, and the second layer filling the lower areas on one surface of the first layer and providing an even surface on the resulting stencil sheet for intimate contact with an original and attendant advantages.

Abstract: A method and device for transferring from a dye supporting strip a design to a textile web under the action of heat and a sub atmospheric pressure, the strip being pressed against the web by a difference in electrostatic charge. A charging device is used adapted to direct a very narrow beam of electrons upon the strip.

Abstract: An apparatus for duplicating information from a master provided with information, such as text lines or the like, comprising a drum rotatable in a stand, to which drum the master is applied, and the master during rotation of the drum is exposed to directed heat radiation from one or more heat radiators and supplied to a dye-carrier rotating synchronously with the drum, which carrier comprises a dye-carrying web, the dye of which adheres to the master in agreement with the information applied thereon, unprepared copy receiving sheets are then contacted with the master and subsequently removed therefrom.

Abstract: An improved process for the diazo-type multicolor reproduction which can give multicolored copies excellent in the hue separation and can increase the number of copies obtained from an original treated with a color-forming agent is disclosed. This improved multicolor reproduction process is characterized by the use of a color-forming composition comprising a thermo-volatile or sublimable coupler and at least one hue separation-improving agent selected from polyalkylene oxides and polyalkylene oxide derivatives which are solid under normal conditions and fatty acid derivatives having a melting point of at least 100.degree.C.

Abstract: A method for modifying vesicular images into non-scattering images is provided, which comprises opening the closed bubbles of the vesicular image to form an open-bore image by allowing at least one organic solvent which attacks the thermoplastic bubble walls of the vesicular image to act on the latter, optionally making the image wettable with a surfactant introducing the image substance into the open pores by treatment with a solution or dispersion of the image substance and, optionally removing any remaining gas bubbles or pores by heat or solvent treatment.

Abstract: An original-treating agent to be used in the process for the diazo-type multi-color reproduction by which portions of a sensitive paper corresponding to preselected portions of an original can be colored selectively in different hues.

Abstract: An imaging method comprising providing a member comprising a first layer of softenable material overlying a second layer of softenable material and both of these layers of softenable material having migration material selectively located in depth in image configuration. Additionally, the first layer of softenable material has migration material dispersed throughout the non-image portions and the second layer of softenable material is essentially free of migration material in the non-image portions. The process steps comprise applying a receiver sheet to the free surface of the first layer of softenable material and separating the receiver sheet from the imaging member thereby stripping out either portions of the first layer of softenable material or portions of the first and second layer of the softenable material simultaneously. The portions of the softenable material being stripped out contains substantially the same density of migration material.

Abstract: An improved process for diazo-type multicolor reproduction comprisingA. exposing to light an assembly comprisingI. an original comprising opaque image areas and complementary non-image areas which transmit light,Ii. a photosensitive layer containing at least one photosensitive diazonium salt (c), an azo coupler (b) and a substantially non-thermovolatile acidic substance (d), the acidic substance (d) being present in an amount of at least 5 mols per mol of the diazonium salt (c), andIii.

Abstract: Process for forming images by heating, imagewise, to a temperature above a softening temperature, but below the thermal decomposition temperature, a solid layer of a mixture of a thermoplastic, amorphous, organic polymer and a liquid plasticizer therefor, the mixture being capable of existing in a metastable state and a stable state for a period sufficient to convert the stable polymer to the metastable state, heating the entire surface of the layer to a temperature between the softening temperature of the stable and metastable states, and converting the softened exposed image areas to a visible image by applying finely divided colored particles to the layer and removing them from nonexposed areas or by thermal transfer. The simple procedure is a dry process, and images of high quality and stability are obtained rapidly.