Abstract:
Eine Vorrichtung (1) zum Einprägen eines vorgebbaren Musters in zumindest ein flächiges, zwischen zumindest zwei Prägewalzen der Vorrichtung durchgeführtes Material (4), wobei die Bewegungen der Prägewalzen miteinander synchronisiert sind, und die Prägewalzen (2, 3) weiters zumindest zwei Prägspuren (5, 6) aufweisen, wobei die Bewegungen der Prägewalzen (2, 3) mittels ineinander greifender und über Mantelflächen der Prägewalzen (2, 3) verteilter und unterschiedlichen Prägespuren (5, 6) zugeordneten Synchronisationsmittel (7, 8) oder elektronisch und/oder elektromechanisch miteinander synchronisiert sind, wobei die unterschiedlichen Prägespuren (5, 6) zugeordneten Synchronisationsmittel (7, 8) derselben Prägewalze (2, 3) zueinander versetzt angeordnet sind.
Abstract:
A paper product made of at least two plies comprising wood pulp, such as tissue paper, for making household or industrial rails, napkins or serviettes, has a high water absorption thanks to the fact that at least one of the paper plies composing it has salient patterns made of protrusions with fractures or apertures on top. The paper ply with protrusions perforated on top can be joined with conventional operations to further smooth or embossed paper piles, with or without perforated protrusions, to form a multl ply paper product In particular, a paper product made of at least four paper piles Is obtained by joining together two plies paper products as above described and it has great water absorption and further advantages of use. Such a paper product is obtained by adding to the standard production process for making conventional paper products, peculiar production steps which can be performed In a very simple and cost effective manner by modifying conventional machineries.
Abstract:
In the method for applying identification features to a packing strip in order to authenticate the processed packing, the packing strip is fed in a packing line to an embossing station, where logos of all kinds and/or codes and/or a satin finish and/or fold lines are embossed at the cycle rate of the packing machine by means of embossing rollers by deforming the packing strip, identification features and possibly other features are produced additionally on the packing strip on-line, in the same process step, and synchronously to the cycle rate by material removal by means of a feature setup comprising a laser installation, the packing strip having a thickness of 50 µm to 300 µm. The thus treated packing strip is subsequently further processed. Due to the fact that the feature setup for producing the identification features is provided in addition to the embossing rollers but operates in the same process step, all known embossing rollers can be used, and due to the application of lasers for producing the features, e.g. a consecutive numbering can be produced, thereby ensuring a secure authentication method without the need of changing substantially the embossing station comprising a housing with at least two embossing rolls, or lowering the processing speed.