Abstract: A process for producing and an image receiving material for dye diffusion thermal transfer processes comprises a carrier material, an intermediate layer of a crosslinked material, and an image receiving layer of an uncrosslinked material, and the two layers are produced without using organic solvents.

Abstract: An image-bearing paper is provided which contains a bonding agent that is reticulated by ionizing rays, or bears a coating on at least one surface that contains a bonding agent reticulated by ionizing rays, whereby the bonding agent is predominantly formed of unsaturated substances, and reticulation takes place by means of ionizing rays in or on the paper, which is used as a support material for thermally developable photographic layers, or as an image-receiving material for thermally developed images produced by diffusion of the image-forming substance.

Abstract: There is described a water-resistant paper support for photographic layers with at least one coating hardened by electron beams, in which the base paper of the paper support contains at least one aluminum compound in a quantity, relative to the aluminum ion, of 1 to 12 kg/t of cellulose, preferably 3 to 6 kg/t of cellulose, and with a pH-value of the paper stuff of the base paper between 5 and 8.

Abstract: There is described a water-resistant paper support for photographic purposes with at least one coating which is hardened by electron beams, wherein the resin layer forming the coating contains acrylated or methacrylated phosphoric acid with a ratio of acrylate or methacrylate groups to acid groups of 1:2 to 2:1, or itaconic acid, and wherein this acrylated or methacrylated phosphoric acid or the itaconic acid in the resin mixture forming the coating amounts to 1 to 15 weight %, and preferably 4 to 10 weight %, relative to the entire mixture, and the acrylated or methacrylated phosphoric acid possesses an average molecular weight of 400 to 600.

Abstract: A method for making a support paper for a photographic emulsion having a smooth unmottled surface which comprises applying to the top side of a photographic base paper pigmented monomeric liquid, acrylic coating mixture, hardening the mixture by bombarding with a beam of electrons at room temperature and extruding a pigmented polyolefin film over the hardened mixture to serve as a barrier against migration of unpolymerized monomer into the emulsion. The hardened acrylic resin is preferably oxidized by corona treatment to facilitate adhesion of the polyolefin.

Abstract: Described is a photographic support material for black-and-white and color photographic emulsions, which support material is coated at least on one side with a layer containing a white pigment ad a binder component that predominantly includes unsaturated organic compounds and that is hardened by means of high energy radiation, while the white pigment, which is preferably a titanium oxide or titanium mixed oxide, carries an inorganic surface deposit which consists of oxides or hydrated oxides that make up at least about 2% by weight of the total pigment. The oxides and hydrated oxides include those of aluminum, silicon, zinc, magnesium, tin, zirconium, antimony or alkaline-earth metals.

Abstract: Photographic base materials are described which contain on at least one side thereof a coating whose binder component is produced predominantly from unsaturated compounds and which has been hardened by means of energy supplying radiation. Discoloration in connection with wet developing is avoided by including within the coating material, before hardening thereof, at least one unsaturated monomeric, oligomeric or polymeric hydroxyfunctional substance and by maintaining the molal concentration of the hydroxyl groups at a value of at least 2. The coating material as defined in the invention is suited for use as a base for photographic layers which are developed wet, as well as for those which are developed dry.

Abstract: A multilayer, waterproof photographic paper support includes a paper which is coated with a layer of radiation hardened varnish or varnish color and a barrier layer is positioned between the paper and varnish layer. The barrier layer comprises a polymer, film-forming material, produced either by extrusion coating, a coating of an aqueous solution or dispersion.

Abstract: A method for producing a waterproof paper support having a photographic emulsion which is characterized by a highly plane surface which includes the steps of coating one side of the paper with a pigmented resin hardenable by radiation, pressing the resin surface against a highly polished surface such as the surface of a chrome-plated drum and then separating the hardened product from the polished surface.

Abstract: A photographic paper base comprises a base paper which bears two resin layers arranged one on top of the other on at least one side. The side of the paper which is destined to receive the photographic layer is coated with two resin layers lying one on top of the other, i.e., a first layer lying on the paper and the second layer arranged to contact the photographic layer. Only the second layer contains stabilizers and/or antioxidants, these being preferably in the range 0.03 to 2.0% by weight.

Abstract: Electrostatic recording material is made by coating a conducting paper support with a lacquer comprising at least one unsaturated organic compound and substantially no inert solvent and hardening the lacquer by exposure to radiation such as an electron beam or ultra-violet to form a dielectric layer. The dielectric layer retains charge well at high humidities.