Patent ID: 7926244
Filing Date: 2011-04-19
Classification: B29C,B29L,B65B,B65D

Abstract:
1. A method, in a filling machine, of producing a package with an opening arrangement, the method comprising: producing a sleeve from a packaging laminate comprising at least a core layer of paper; injection moulding a top of plastic material on an end portion of said sleeve so that there is formed a liquid-tight connection between said sleeve and said top; in the injection moulding, providing the top with a part of said opening arrangement, which includes a neck with external threads, the neck defining a pouring opening; capping the neck while the top including the external threads is still at a temperature of 40° C. to 80° C. so that the capping of the neck is performed before the top including the external threads has reached a configurationally stable state, the capping, at least during a first initial phase, taking place in that a cap with corresponding internal threads is rotated and the package is displaced in a direction towards the cap in such a manner that it may be ensured that a relationship between the speed of rotation of the cap and the speed of displacement of the package substantially correspond to thread pitch of the threads in the cap and on the neck in that position when the threads come into contact with one another; and during the first initial phase of the capping while the cap is being rotated, the cap is held stationary in a direction towards and away from the package.