Abstract:
Beim Einrichten einer Prägeform in einer rotativen Stanzmaschine oder in einer Rotationsdruckmaschine sollen die Rüstzeiten deutlich herabsetzt werden. Hierzu wird entweder die Matrize (A2) oder die Patrize (A3) einer Prägeform durch eine Formmasse gebildet, die von der entsprechenden Gegenform in der Maschine geprägt wird und anschließend verformt aushärtet. Bei der Matrize (A2) wird eine Überfüllung (A5) durch ein gleichmäßiges Verfahren des Registers in allen Richtungen um einen definierten Verfahrweg erzeugt.
Abstract:
A method for producing a laminated embossed web includes the steps of: (a) providing a first web and at least a further web, (b) embossing the first web with a first pattern of embossments, each embossment comprising a top and a side, (c) providing an adhesive with an electrostatic charge, (d) directing the adhesive to the tops of the embossments, and (e) combining the webs.
Abstract:
A surface-adhesive-rule technology (SART) method and system for creating a surface-adhesive-rule die and counter die for pre-treating cardboard. Wherein the pre-treating comprises: creasing and/or cutting and/or embossing the cardboard. The SART system may comprise: a rule-drawer having one or more cartridges, one or more nozzles, and one or more pressure actuator; a leading mechanism that carries the rule-drawer; and a controller that controls the rule-drawer and the leading mechanism according to a layout of a surface-adhesive-rule die. Each cartridge may comprise flexible materiel and may be associated with one of the nozzles having an orifice with a profile. Further the leading mechanism moves the rule-drawer and the rule-drawer draws a plurality of surface-adhesive rules from the flexible material having an attribute to reserve the shape of the orifice profile through which it is deposited on the surface of a die's body according to commands obtained from the controller.
Abstract:
An embossing roll for producing fibrous products especially tissue paper products, non-woven products or a hybrid thereof, and preferably hygiene and cleaning products, with an embossing surface is suitable to run against an anvil roll, the embossing surface includes protrusions starting from a base circumferential surface of the embossing roll; the embossing protrusions form a pattern with a base surface area of at least 3 cm×3 cm; within each pattern there is a high number of embossing protrusions which are sized and/or positioned such as to represent a rastered motive element covering the base surface area; at least some of the embossing protrusions are dimensioned and/or positioned such that consecutive minimum distances between opposed side surfaces of pairs of embossing protrusions arranged in sequence vary gradually. A device employing the embossing roll and a method for arranging embossing protrusions on a circumferential surface of the embossing roll are described.
Abstract:
An embossing roll for producing fibrous products, has a structurized embossing surface suitable to run against an anvil roll. The structurized embossing surface includes male protrusions or female depressions starting from a base circumferential surface of the roll. The embossing pattern is characterized by the following features: the base areas of selected male protrusions or female depressions in the base circumferential surface are different; the heights or depths of selected male protrusions or selected female depressions in a radial direction of the roll and starting from the base circumferential surface are different; and the angles between sidewall sections and the adjacent base circumferential surface of selected male protrusions and/or female depressions are different.
Abstract:
A rotary embossing die includes a curved metallic plate having an inner and an outer surface. An embossing design is etched on the outer surface of the metallic plate and an epoxy-based support plate is formed on the inner surface of the metallic plate. The metallic plate and the support plate preferably cooperate to define a shoulder. Die clips positioned around the shoulder are used to fasten the embossing die to the die cylinder of a rotary embossing machine. The metallic plate can be formed from brass or magnesium, and is preferably curved to any suitable radius.