Tetra Laval Holdings & Finance S.a.

Anna Eriksson

Paolo Benedetti

Luca Poppi

Filippo Ferrarini

Tommy Nilsson

Lars Åke Näslund

Claudia Leidinger

Lars Ake Naslund

Christina Chester

Packaging and blank therefor

The invention refers to a method and device for ventilating a device for electron beam irradiation of a web (W), the method comprising the steps of: providing a first chamber () comprising a web inlet opening () and a web outlet opening () and a web outlet opening (), providing a second chamber () extending inside the first chamber (), the second chamber () comprising a a web inlet opening (), a web outlet opening (), and an electron exit surface () through which electrons are adapted to be emitted into the second chamber (), passing the web (W) through the second chamber (), and creating a flow of a gaseous fluid through both the first and second chambers () in a direction opposite the direction of travel of the web (W) by supplying said fluid into the web outlet opening () of the first chamber () and providing at least one outlet ().

Method and device for electron beam irradiation

The present invention refers to a device for electron beam irradiation of at least a first side of a web, the device comprising a tunnel through which the web is adapted to pass, said tunnel being provided with a web inlet portion, a web outlet portion and a central portion adapted to receive at least a first electron beam emitter provided with an electron exit window through which electrons are adapted to be emitted into the tunnel. The tunnel is being angled at least two locations in each of the inlet portion and the outlet portion in such a way that any X-ray formed during the electron beam irradiation of the web is forced to hit the tunnel wall at least twice before exiting the tunnel.

Device and method for electron beam irradiation

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Rydeback, Sweden

Anna Eriksson