Composite packaging material sheet, method for forming a composite packaging material sheet, composite package and method for forming a composite package

Abstract

A composite packaging material sheet for the formation of a composite package comprising at least a packaging material sheet base having a designated opening and an opening device applied on the packaging material sheet base and about the designated opening. The packaging material sheet base comprises at least a first face and a second face opposite to the first face and a plurality of crease lines delimiting a plurality of panels. The opening device comprises a base frame for coupling the opening device to the packaging material sheet base and about the designated opening. The base frame comprises at least a first flange connected to the second face and having a rectilinear peripheral portion, the rectilinear peripheral portion being adjacent and parallel to one respective crease line defining a reference crease line.

1 . Composite packaging material sheet for the formation of a composite package filled with a pourable product comprising at least:
 a packaging material sheet base comprising a multilayer packaging material having a designated opening; and   an opening device applied on the packaging material sheet base and about the designated opening and designed to seal the designated opening and being controllable in an open position so as to free at least a portion of the designated opening;   wherein the packaging material sheet base comprises at least a first face and a second face opposite to the first face;   wherein the second face is designed to define an inner surface of the composite package to be formed from the composite packaging material sheet;   wherein the packaging material sheet base comprises a plurality of crease lines delimiting a plurality of panels;   wherein the opening device comprises a base frame for coupling the opening device to the packaging material sheet base and about the designated opening;   wherein the base frame comprises at least a first flange connected to the second face and having a rectilinear peripheral portion;   wherein the rectilinear peripheral portion is adjacent and parallel to one respective crease line defining a reference crease line.   
     
     
         2 . Composite packaging material sheet according to  claim 1 , wherein the reference crease line delimits at least one panel comprising at least a portion of the designated opening. 
     
     
         3 . Composite packaging material sheet according to  claim 1 , wherein the rectilinear peripheral portion is in contact with the reference crease line. 
     
     
         4 . Composite packaging material sheet according to  claim 3 , wherein the rectilinear peripheral portion abuts against the reference crease line. 
     
     
         5 . Composite packaging material sheet according to  claim 3 , wherein the rectilinear peripheral portion extends into the reference crease line. 
     
     
         6 . Composite packaging material sheet according to  claim 1 , wherein the designated opening comprises a first opening portion and a second opening portion;
 wherein a first panel comprises the first opening portion and a second panel comprises the second opening portion;   wherein the first flange comprises a first flange portion, a second flange portion and a fold line connecting the first flange portion and the second flange portion with one another;   wherein the second flange portion is configured to cover and seal the second opening portion;   wherein one crease line being transversal to the reference crease line is interposed between and in contact with the first panel and the second panel and defines an auxiliary reference crease line;   wherein the fold line is parallel to the auxiliary reference crease line.   
     
     
         7 . Method for forming a composite packaging material sheet according to  claim 1 , comprising at least the steps of:
 providing a packaging material sheet base having a designated opening;   arranging a mold around the designated opening; and   feeding a molten polymer to the mold and molding the opening device onto the packaging material sheet base and about the designated opening.   
     
     
         8 . Method according to  claim 7 , and further comprising the step of:
 reading a mark applied on the packaging material sheet base; and   aligning the mold around the designated opening in dependence of the position of the mark.   
     
     
         9 . Composite package for a pourable product comprising:
 a main body formed from a composite packaging material having a designated opening and an inner space; and   an opening device coupled to the main body and about the designated opening and being configured to seal the designated opening and being controllable at least in an open position so as to free at least a portion of the designated opening;   wherein the main body comprises a plurality of walls, each delimited by a plurality of respective crease lines of the packaging material;   wherein the main body comprises an inner surface facing the inner space and an outer surface opposite to the inner surface;   wherein the opening device comprises a base frame coupling the opening device to the main body and about the designated opening;   wherein the base frame comprises at least a first flange connected to the inner surface and having a rectilinear peripheral portion;   wherein the rectilinear peripheral portion is adjacent and parallel to one respective crease line defining a reference crease line-.   
     
     
         10 . Composite package according to  claim 9 , wherein the reference crease line is interposed between a first wall of the package, and a second wall of the package being transversal to one another. 
     
     
         11 . Composite package according to  claim 9 , wherein the rectilinear peripheral portion is in contact with the reference crease line. 
     
     
         12 . Composite package according to  claim 11 , wherein the rectilinear peripheral portion abuts against or extends into the reference crease line. 
     
     
         13 . Composite package according to  claim 9 , wherein the designated opening comprises a first opening portion and a second opening portion;
 wherein a first wall comprises the first opening portion and a second wall comprises the second opening portion;   wherein the first flange comprises a first flange portion, a second flange portion and a fold line connecting the first flange portion and the second flange portion with one another;   wherein the second flange portion is configured to cover and seal the second opening portion;   wherein one crease line being transversal to the reference crease line is interposed between and in contact with the first panel and the second panel and defines an auxiliary reference crease line;   wherein the fold line is parallel to the auxiliary reference crease line.   
     
     
         14 . Composite package formed from a composite packaging material sheet according to  claim 1 . 
     
     
         15 . Method for forming a composite package according to  claim 9 , comprising at least the steps of:
 providing a composite packaging material sheet according to  claim 1 ;   folding the composite packaging material sheet according to the crease lines for obtaining the composite package;   sealing the composite package; and   filling the composite package with the pourable product.