Abstract:
[Object] To provide a printed matter with which an inspection of a printing apparatus is easily performed.[Solution] An inspection of a printing apparatus is performed by: manufacturing a printed matter which includes a first film and a second film, at least one of which is transparent, and in which a liquid that is used to print by the printing apparatus is interposed between the first film and the second film; and inspecting the printed matter.
Abstract:
A process for preparing a copolymer latex comprising emulsion polymerizing an aliphatic conjugated diene monomer and other monomer copolymerizable therewith in the presence of a cyclic unsaturated hydrocarbon having one unsaturated bond in a ring, in which, preferably a monomer mixture which does not contain the aliphatic conjugated diene monomer is added after the addition of a monomer mixture containing the aliphatic conjugated diene monomer, or a part of a chain transfer agent is added after the addition of the monomers. This copolymer latex is useful as an adhesive composition, a paper coating composition, an adhesive composition for back-sizing carpets, an adhesive composition for rock fiber materials, a paper coating composition for gravure printing, and a color developing composition for a pressure sensitive copying paper.
Abstract:
In an offset gravure web coating method and apparatus, coating composition is applied from a gravure roll to a transfer roll, thence to an applicator roll, and finally to the web. The web moves in the same direction as the applicator roll surface. The ratio of the speed of the applicator roll surface to that of the web is preferably not greater than 1:1. The method and apparatus afford improved coating patterns at low wet coatweights.
Abstract:
A process is described for continuously producing paper having a coating of dyestuff donor mass for reaction with a dyestuff acceptor mass. A web of the paper passes between a printing block surrounding a roller and a donor mass transfer roller whereby the paper is partially coated on one face with the donor mass. The transfer roller receives the donor mass from a system by which the viscosity of the mass is kept constant by a viscosity measuring device controlling the supply of solvent to the donor mass. The coated paper proceeds over a cooling roller, through a drying tunnel in which it is subjected to streams of hot air, and a further cooling roller. The dyestuff donor mass is thereby dried and consolidated and the paper continues through a printing device whereby text is printed onto the paper. The process can be used in the production of a transfer copying set comprising an upper sheet bearing a text on its upper face and a dyestuff acceptor mass over the whole of its lower face, one or more intermediate sheets partially coated on top with donor mass and wholly coated beneath with acceptor mass, and a lower sheet partially coated on top with donor mass.
Abstract:
A self-contained pressure-sensitive record material comprising a substrate and a coating thereon of an interspersed mixture of pressure-rupturable capsules of an oily solvent solution of a substantially colorless basic chromogenic material and capsules of solid co-reactant acidic resin particles, said co-reactant acidic resin being capable of producing a color upon contact with the chromogenic material. The capsule mixture is applied to the substrate in a single coating step, resulting in a greater production efficiency. The resulting record material provides better imaging characteristics with less print bleed than self-contained systems known in the prior art.
Abstract:
A coating process wherein there is provided a wettable surface, particularly a paper sheet surface, and a coating solution of coacervate-forming materials in a state of incipient coacervation, wherein said coacervate-forming materials are capable of interacting to give a film-forming coacervate phase under the conditions that prevail at the surface to be coated and wherein said surface is contacted with said coating solution to cause the emergence from solution of the film-forming coacervate phase at said surface.
Abstract:
The invention is concerned with coated paper. By precoating paper with starch and insolubilized alginate, the amount of transferable coating e.g. in record materials, needed per unit area can be reduced. This advantage can be achieved with small amounts of alginate, e.g. less than 0.05 gram per square meter per side, and high starch to alginate weight ratios e.g. 85:1.
Abstract:
A marking system comprises a substrate having a surface coated with a color-triggering developer and a deactivating ink composition; and a marking composition comprising at least one color precursor. At least one “non-color developing portion” of the surface is coated with both the color-triggering developer and the deactivating ink composition, and at least one “color-developing portion” of the surface is coated with the color-triggering developer and is not coated with the deactivating ink composition. Color development occurs at the color-developing portion(s) and does not occur at the non-color developing portion(s) upon application of the marking composition to the surface of the substrate.
Abstract:
A marking system comprises a substrate having a surface coated with a color-triggering developer and a deactivating ink composition; and a marking composition comprising at least one color precursor. At least one “non-color developing portion” of the surface is coated with both the color-triggering developer and the deactivating ink composition, and at least one “color-developing portion” of the surface is coated with the color-triggering developer and is not coated with the deactivating ink composition. Color development occurs at the color-developing portion(s) and does not occur at the non-color developing portion(s) upon application of the marking composition to the surface of the substrate.