Tetra Laval Holdings & Finance S.a.

Giuseppe Esposito

Daniele Palladino

Gabriele Borasi

Marco Ricco'

Fabrizio Tavernari

Luca Leonardi

PierPaolo Algeri

Enrico Lotti

Marco Carreri

Davide Andreotti

Marco Ricco′

A method of applying a sealing strip onto a web of packaging material comprising advancing the web along a web advancement path; applying a first longitudinal portion of the sealing strip onto a longitudinal edge of the web, sealing the first longitudinal portion of the sealing strip onto the longitudinal edge, detecting and/or determining a correct alignment of the sealing strip with respect to the web. The detecting and/or determining of the correct alignment comprises acquiring an image of a second longitudinal portion of the sealing strip and a reference marker of a strip application apparatus, analyzing the acquired image to determine at least a first transversal distance between the reference marker and a longitudinal border of the second longitudinal portion; and evaluating the correct alignment/misalignment as a function of at least the first transversal distance.

Method and an apparatus for applying a sealing strip to a web of packaging material

A device for feeding a web of a packaging material along a path and towards an application station; wherein the packaging material comprises a plurality of pre-laminated holes at which application station applies respective opening devices. The device comprises an advancing mechanism for advancing the web along a first direction parallel to path; a sensor for generating a plurality of measure signals associated to the positions of pre-laminated holes; and a first motor controllable on the basis of measure signals. The first motor is operatively connected to the advancing mechanism for moving the advancing mechanism along a second direction transversal to path.

Device and method for feeding a web of a packaging material

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Sasso Marconi, Italy

Giuseppe Esposito