Abstract: Methods for producing cylindrical flexographic printing elements, the cylindrical flexographic printing elements having a relief-forming layer, and the relief-forming layer being produced by successive application of a plurality of layers of a relief-forming material in liquid melt form, preferably of a photopolymerizable material in liquid melt form, to a rotating cylindrical sleeve in a continuous process.

Abstract: Methods for producing cylindrical flexographic printing elements, the cylindrical flexographic printing elements having a relief-forming layer, and the relief-forming layer being produced by successive application of a plurality of layers of a relief-forming material in liquid melt form, preferably of a photopolymerizable material in liquid melt form, to a rotating cylindrical sleeve in a continuous process.

Abstract: The invention relates to a device for producing and/or applying a substantially planar material combination which is formed from at least two surface regions and has a predefined combined width, combined height, and/or combined length. Said device comprises a conveying unit that defines a direction of travel and has a conveying surface. The device also comprises an application unit including an application nozzle which has a slit-shaped outlet extending substantially transverse to the direction of application and which allows the first surface region made of a first extrudate and the second surface region made of a second extrudate to be extruded onto the conveying surface. The application nozzle (8) comprises at least one conveying unit (22; 22?) for conveying an extrudate onto the conveying surface. The conveying unit allows the conveyed volume, the conveyed mass, the conveying speed, and/or the conveying time of at least one of the extrudates to be controlled.

Abstract: The invention relates to an adherable material composite having a large-area extent, a composite face, which extends in a first direction and in a second direction running substantially perpendicular to the first direction, and having a composite thickness extending in a third direction which runs substantially perpendicular to the composite face, wherein the material composite is formed from a first composite region and at least a second composite region which adjoins the first composite region at least in certain portions, and wherein the second composite region has adhesive properties, such that the material composite is adherable, in particular redetachably adherable, to a surface of a body by way of the composite face.

Abstract: A laminating process in which an adhesive composition which is freely flowing or can be rendered freely flowing is discharged from a coating appliance in the form of a substantially continuous or interrupted film, out of a slot nozzle with lateral film boundaries, and is applied and fixed to the surface of at least one web-type substrate, if applicable after being deposited on an advancing transfer substrate, such as a roller, and then transferred to the web-type substrate, and in which the film is guided outward to the substrate via the nozzle slot, clamped or hemmed in at its edges by the film boundary elements, heat is drawn off to the surrounding atmosphere via at least one heat exchange element provided along the film boundary elements.

Abstract: In a method for applying a multiplicity of discrete spots of adhesive, distributed over a surface area, permanently to a substrate (3), reduced formation of threads of adhesive is achieved by a rotating applicator head that bears a pattern of openings around its circumference being moved in a direction of application (11) at a lateral distance from and in relation to the surface of the substrate that is to be permanently provided with the pattern, the adhesive is forced out of the openings (2) in the applicator head in the region of a linear or strip-like spacing gap (0) formed between the substrate and the applicator head to form lenticular blobs (4B), the blobs of adhesive are brought into contact with the substrate in the region of the spacing gap, without the applicator head thereby touching the substrate, and the blobs of adhesive are pulled away from the respective openings while becoming attached to the substrate and forming spots of adhesive (4) on the substrate.

Abstract: The invention relates to a device for applying adhesive threads to a substrate (30). Said device comprises an rotatable application head (18) encompassing at least one adhesive discharge nozzle (18A) located at a radial distance (b) from the axis of rotation (18D) of the application head (18), a shaft (18B), and at least one adhesive supply duct (18C) which extends from an adhesive supply unit (20) to the at least one adhesive discharge nozzle (18A) via the shaft (18B). A rotary drive unit (12, 15, 14) rotates the application head (18) about the shaft (18B) thereof while an adhesive supply unit (20) and/or a valve assembly (22) control/s impingement of the adhesive supply duct (18C) of the application head (18) with adhesive. The invention further relates to a method for applying adhesive threads to a substrate as well as products made therefrom.

Abstract: A laminating process in which an adhesive composition which is freely flowing or can be rendered freely flowing is discharged from a coating appliance in the form of a substantially continuous or interrupted film, out of a slot nozzle with lateral film boundaries, and is applied and fixed to the surface of at least one web-type substrate, if applicable after being deposited on an advancing transfer substrate, such as a roller, and then transferred to the web-type substrate, and in which the film is guided outward to the substrate via the nozzle slot, clamped or hemmed in at its edges by the film boundary elements, heat is drawn off to the surrounding atmosphere via at least one heat exchange element provided along the film boundary elements.

Abstract: The invention relates to a device for applying adhesive threads to a substrate (30). Said device comprises a rotatable application head (18) encompassing at least one adhesive discharge nozzle (18A) located at a radial distance (b) from the axis of rotation (18D) of the application head (18), a shaft (18B), and at least one adhesive supply duct (18C) which extends from an adhesive supply unit (20) to the at least one adhesive discharge nozzle (18A) via the shaft (18B). A rotary drive unit (12, 15, 14) rotates the application (18) about the shaft (18B) thereof while an adhesive supply unit (20) and/or a valve assembly (22) control/s impingement of the adhesive supply duct (18C) of the application head (18) with adhesive. The invention further relates to a method for applying adhesive threads to a substrate as well as products made therefrom.

Abstract: A device for applying adhesives, in particular adhesives which have a tendency in particular to produce deposits even while they are being processed for adhesive bonding, has an application head with a slot nozzle of variable cross section and with a slide for setting the width of the nozzle slot. To keep the nozzle slot and the slide free from remains of adhesive, in particular adhesive coatings and deposits, the application head is provided in the region of the slide with a feed for a cleaning agent, which can be used to detach remains of adhesive and consequently remove them.

Abstract: A glue coating apparatus is provided having a plurality of individual slit nozzles. Two faces are formed by an end face of a nozzle plate, in which feed channels open out, and by a clamping strip extending in front of the nozzle plate, these clamping a slit plate between them. The feed channels open into the regions of the slit plate which remain free between webs, so that the glue is channeled through the back of the slit plate. The webs and the individual glue streams are combined only immediately in front of an outflow point, to assure a uniform covering of the coating width, but prevent an overflow of glue from one slit nozzle into an adjacent one. The webs may also be tapered towards the outflow point, so that the individual glue streams can easily merge into one another.

Abstract: A glue coating apparatus is provided having a plurality of individual slit nozzles. Two faces are formed by an end face of a nozzle plate, in which feed channels open out, and by a clamping strip extending in front off the nozzle plate, these clamping a slit plate between them. The feed channels open into the regions of the slit plate which remain free between webs, so that the glue is channeled through the back of the slit plate. The webs and the individual glue streams are combined only immediately in front of an outflow point, to assure a uniform covering of the coating width, but prevent an overflow of glue from one slit nozzle into an adjacent one. The webs may also be tapered towards the outflow point, so that the individual glue streams can easily merge into one another.

Abstract: Apparatus in which glue is applied to an endless thread by running the thread successively through the bore of a nozzle needle and a nozzle aperture and, when the nozzle needle is retracted from a valve seat, coating the thread with glue which has been forced out of a surrounding chamber. The thread, together with this coating, passes through the nozzle bore. As soon as the nozzle needle is advanced up against the valve seat in the nozzle element, the glue feed ceases and coating ends, so that the thread takes with it at most only very small quantities of glue remaining in the nozzle bore and an exact cutoff of the glue coating is obtained. When the glue is injected around the thread, that is, when the glue is brought together with the thread under a specific pressure exerted on all sides, it is possible to obtain a substantially uniform coating of the thread surface with glue which allows all improved bonding of the thread over its length to the sheet-like structure.