Abstract: Aqueous wood smoke is coated on tensioned fibrous reinforced dry stock cellulosic food casing in the flat form, and impregnates the casing wall while the latter is in a tensioned roll.

Abstract: A process for producing an easily adherable biaxially stretched polyester film, which comprises coating a primer composition consisting of (A) and aqueous dispersion of polyurethane and (B) a montan wax salt and optionally a nonionic or anionic surface-active agent on the surface of a polyester film which has not yet been stretched completely, drying the coating, completing the stretching of the coated film, and then heat-setting it thereby to form a primer coated layer on the film surface.

Abstract: An oriented polypropylene film substrate and method of manufacturing an oriented polypropylene film having enhanced adhesion to metallized coatings which comprises the steps of coextruding the film substrate having a homopolymer polypropylene core layer, and an ethylene propylene outer layer on at least one side of the core layer, the core and outer layers containing no slip agent. The film substrate is biaxially oriented, and the outer layer is corona treated. A metal coating is then deposited on the corona treated outer layer.

Abstract: A method of tensioning metallic strips on a slitting line is combined with the steps of uncoiling a metallic web having a non-uniform cross sectional thickness from an uncoiler, slitting the web into a plurality of strips having varying thicknesses, and recoiling the strips into individual strip coils on a recoiler, the tensioning method being the additional step of depositing a strippable polymeric compound onto thinner strips so that the effective cross sectional thicknesses of the thinner strips is increased to that of the thicker strips so that the strip coils formed from the strips are of similar diameter and recoil the strips at the same rate, thereby preventing the formation of slack strips. The apparatus includes a hot melt unit for generating strippable plastic in liquid form, a hot melt gun communicating with the apparatus, a support frame and movable arm on which the gun is mounted, and a motor driving a rack and pinion for positioning the hot melt gun over a selected strip coil.

Abstract: A method and device for longitudinally stretching polymeric film, characterized by the strict isolation of the tensioning operation from the heating and the cooling operations of the film, by the symmetrical heating and cooling of the film, and by carrying out the heating of the film in two stages, namely preheating by means of diffused IR-radiation, and a full heating, preferably along a line, by means of bundled IR-radiation. The film stretched in this manner meets high standards of flatness and surface quality, and is subject to minimum waste losses and is especially useful in the photographic field.

Abstract: A polyester film coated with an antistatic coating is provided. The film includes a polyester film support coated on one side with a latex coating. The coating includes stearamidopropyldimethyl-.beta.-hydroxy-ethylammonium nitrate present in a concentration in the range of between about 2.75 percent and 3.25 percent by weight, based on the total weight of the latex coating. The coating further includes a crosslinkable methylmethacrylate-ethylacrylate-methacrylamide terpolymer having a glass transition temperature in the range of between about 40.degree. C. and 50.degree. C. The terpolymer is present in a concentration in the range of between about 0.75 percent and 1.25 percent by weight, based on the total weight of the latex coating. The weight ratio of the nitrate to the terpolymer ranges between about 2.75:1 to below 3:1.A process for forming the above film is also disclosed. In this process a latex coating of the composition described above is coated onto a uniaxially drawn polyester film support.

Abstract: A process is described for the manufacture of a dimensionally stable polyester film support carrying a primer coating for improving the adhesion thereto of subsequently applied coatings, which process comprises applying to an unstretched or only monoaxially stretched polyester film support a layer of a coating composition from an aqueous dispersion, drying said layer, stretching it biaxially or in a direction perpendicular to the said first stretching operation together with the polyester film support and heat-setting the polyester film, wherein said coating composition, before drying and heat-setting, comprises a mixture of:(A) 52 to 79% by weight of a copolymeric binder comprising 60 to 95% by weight of methyl methacrylate, 3 to 20% by weight of a divinyl or diallyl monomer, 0 to 30% by weight of a plasticizing vinyl monomer, and 0 to 5% by weight of an ethylenically unsaturated carboxylic acid,(B) 0.

Abstract: As a spin-finish lubricant for processing synthetic fibers, a nonionic polyalkoxylate surfactant of the fatty-ether alkoxylate, fatty-ester alkoxylate, or block or heteric ethylene oxide/propylene oxide type is made which contains a substantial proportion of alkali-metal or alkaline-earth metal ions and preferably anions of volatile nature, such as the anions of saturated carboxylic acids containing up to 18 carbon atoms. Such lubricants display improved stability when during a spin-finishing operation the synthetic fiber to which they have been applied is passed over a heater plate maintained at 150.degree. to 300.degree. Centigrade.

Abstract: A process is provided for adhering an antistatic layer to a dimensionally stable polyester film support, e.g. a film of polyethylene terephthalate. To an unstretched or only monoaxially stretched polyester film is applied an antistatic layer from an aqueous coating composition. After drying of the antistatic layer it is stretched biaxially or in a direction perpendicular to the first stretching operation, together with the polyester film support and thereafter the polyester film is heat-setted. The aqueous coating composition comprises 30 to 80% by weight of an electroconductive product, 10 to 40% by weight of a stretch-improving agent and 10 to 40% by weight of an inert filler material.The polyester film support may be provided on its opposite side with a subbing layer and one or more light-sensitive gelatin silver halide emulsion layers.

Abstract: A continuous business sheet or paper-like web carries image transfer means which is supported by a thin plastics film or layer of tough flexible carrier material. The film or layer of carrier material is removably attached to the sheet and may be removed from the sheet before or after use of the transfer material. Thus, when desired, the transfer material is removed from the business sheet by removal of the carrier material and the business sheet is thus freed from the transfer material and from any problems which may be associated therewith.

Abstract: A method for coating the photoresist by coating rollers onto a belt-like material comprising a perforated film carrier and a metallic foil laminated thereon. This belt-like material, which has so-called device holes or apertures punched off with a predetermined pitch and is particularly to be used for producing lead frames for IC devices, is wound around a back-up roller with its metallic foil facing outward to give a slight tension to the metallic foil. Thus, a uniform and continuous coating of the photoresist onto the foil may be obtained without any dents formed even at those device holes or apertures.

Abstract: Novel fluid application processes and apparatus wherein fluid extruded through a nozzle is wiped off the nozzle at various angles of attack by periodically forcing a moving sheet, web, or other article against the nozzle in a controlled manner as the same moves past the nozzle, thus to produce predetermined coatings upon the sheet, web, or other article, ranging from an array of dots and lines to an array of bands or elongated continuous bands of coating fluid.

Abstract: A continuous business sheet or paper-like web carries image transfer means which is supported by a thin plastics film or layer of tough flexible carrier material. The film or layer of carrier material is removably attached to the sheet and may be removed from the sheet before or after use of the transfer material. Thus, when desired, the transfer material is removed from the business sheet by removal of the carrier material and the business sheet is thus freed from the transfer material and from any problems which may be associated therewith.

Abstract: A magnetic recording material formed from a base film of a crystalline polymer and having a magnetic layer coated on one surface of the base film which is sufficiently smooth to prevent the occurrence of dropout and the other surface of the film being finely rugged to thereby impart good running property to the magnetic recording material.

Abstract: An electrophotographic paper based on a flat surface bond type paper is given a photoconductive coating to one side of the paper and is cockled afterward. This "post" cockling process can be done on a suitable web roll during production of the coated electrophotographic stock, or an electrographic or electrophotographic copy sheet can be cockled or embossed after imaging, toning and fixing by a conventional electrophotographic apparatus.

Abstract: Surface-treated paper in the form of a continuous web is made by first roughening a base paper which serves as a starting material on the sides to be treated. The roughened web is then passed over and in direct contact with a discharge slot from a container that extends across the web and through which the desired treatment liquid is flowed onto the surface of the web, and the surface-treated paper is then dried and finally reeled.