| 摘要 |
The invention concerns a method and an installation for making a tubular package comprising a flexible, fragile and sealed inner sleeve and an outer cardboard body provided with a precut and closed at both ends by two seals. The method for forming the sleeve consists in sealing the two longitudinal ends of the material ( 1 ) exiting from the bobbin ( 1 ) and passing through a shaping unit ( 3 ) enclosing a mandrel ( 4 ); glueing on the sleeve a cardboard ( 6 ) with a satellite device ( 9 ); cutting out the tube(s) obtained with a device ( 12, 13 ) and sealing one of the ends of the package; filling the package with the product to be packaged and sealing the other end. The resulting package is perfectly sealed and can be open by pressing on the cardboard proximate the precut of the tube thereby rupturing the sleeve and opening the package. Such type of package is designed for packaging oblong products. |
