Installation for the manufacture of a multi-layer material and material thus obtained

Abstract

Installation for the manufacture of a multi-layer material, particularly for the manufacture of a material using paper webs, comprises a formation station ( 1 ) of a first paper web ( 8 ) issued from a first paper feeding station, a gluing unit ( 9 ), a second paper feeding station producing a second paper web ( 14 ) to be laid on the first paper web ( 8 ), which have been deformed in the formation station ( 1 ), by means of a pressing cylinder ( 15 ), a longitudinal cutting station ( 17 ), a transverse cutter ( 22 ) and a stacking station ( 29 ). The formation station ( 1 ) produces a structured web ( 2 ) comprising alveolar deformations, the structure configuration of said structured web ( 2 ), once this one is covered by the second paper web ( 14 ), constituting an assembled unit with a mechanical resistance identical in at least two directions.

1 . Installation for the manufacture of a multi-layer material, particularly for the manufacture of a material using paper webs, comprising a formation station ( 1 ) of a first paper web ( 8 ) issued from a first paper feeding station, a gluing unit ( 9 ), a second paper feeding station producing a second paper web ( 14 ) to be laid on the first paper web ( 8 ), which has been deformed in the formation station ( 1 ), by means of a pressing cylinder ( 15 ), a longitudinal cutting station ( 17 ), a transverse cutter ( 22 ) and a stacking station ( 29 ), characterized by the fact that the formation station ( 1 ) produces a structured web ( 2 ,  34 ), by the fact that the structured web ( 2 ,  34 ) comprises alveolar deformations and by the fact that the structure configuration of said structured web ( 2 ,  34 ), once it is covered by the second paper web ( 14 ), constitutes an assembled unit with a mechanical resistance identical in at least two directions.  
     
     
         2 . Installation according to  claim 1 , characterized by the fact that the aforementioned structured web ( 2 ) is alveolarily deformed on one side ( 48 ).  
     
     
         3 . Installation according to  claim 1 , characterized by the fact that the aforementioned structured web ( 34 ) is alveolarily deformed on both sides ( 48 ,  49 ).  
     
     
         4 . Installation according to  claim 3 , characterized by the fact that the aforementioned structured web ( 34 ) alveolarily deformed on both sides ( 48 ,  49 ) is covered on one side ( 48 ) by said second paper web ( 14 ) and on its other side ( 49 ) by a third paper web ( 33 ) issued from a third paper feeding station.  
     
     
         5 . Installation according to  claim 1 , characterized by the fact that the alveolar deformations are slightly spherically shaped and that they are laid out in a staggered arrangement.  
     
     
         6 . Multi-layer material obtained through an installation according to one of the preceding claims, characterized by the fact that it comprises a structured web ( 2 ) alveolarily deformed on one side ( 48 ), said structured web ( 2 ) being covered on said side ( 48 ) by a paper web ( 14 ).  
     
     
         7 . Multi-layer material obtained through an installation according to one of  claims 1  to  5 , characterized by the fact that it comprises a structured web ( 34 ) alveolarily deformed on both sides ( 48 ,  49 ), said structured web ( 34 ) being covered by a paper web ( 14 ) on one side ( 48 ) and by another paper web ( 33 ) on its other side ( 49 ).  
     
     
         8 . Multi-layer material according to  claim 7 , characterized by the fact that the structured web ( 34 ), alveolarily deformed on both sides ( 48 ,  49 ), shows a decorative pattern.