Foil bag for packaging moist tissues

Abstract

The subject matter of the invention is a foil bag for packaging moist tissues, said foil bag, which is formed from a hose-like, flexible foil, comprising on its top side a dispensing opening for one-by-one removal of the moist tissues. To provide a foil bag of the type mentioned herein above that keeps the tissues moist and clean over a long period of time even after the package has been put to use, a mechanically openable and closable closure element ( 16 ) is embedded in an opening provided on the top side ( 12 ) of the foil bag ( 10 ), said closure element forming a substantially airtight engagement with the foil bag ( 10 ) and being reclosable so as to form an airtight engagement after each use.

1 . A foil bag for packaging moist tissues, said foil bag, which is formed from a hose-like, flexible foil, comprising on its top side a dispensing opening for one-by-one removal of the moist tissues, 
 characterized in that a mechanically openable and closable closure element ( 16 ,  116 ,  316 ) is embedded in an opening provided on the top side ( 12 ) of the foil bag ( 10 ,  110 ,  210 ,  310 ), said closure element forming a substantially airtight engagement with the foil bag ( 10 ) and being reclosable so as to form an airtight engagement after each use.    
     
     
         2 . The foil bag as set forth in  claim 1 , 
 characterized in that the foil bag ( 10 ,  110 ,  210 ,  310 ) is welded to the closure element ( 16 ,  116 ,  316 ) in the region of the opening.    
     
     
         3 . The foil bag as set forth in  claim 1 , 
 characterized in that the closure element ( 16 ,  116 ,  316 ) comprises a frame ( 18 ,  118 ,  218 ,  318 ) circumscribing an accurately defined dispensing opening ( 14 ), said frame ( 18 ,  118 ,  218 ,  318 ) being connected to the foil bag ( 10 ,  110 ,  210 ,  310 ).    
     
     
         4 . The foil bag as set forth in  claim 3 , 
 characterized in that a reclosable lid ( 20 ,  120 ,  220 ,  320 ) is attached to the frame ( 18 ,  118 ,  218 ,  318 ) of the closure element ( 16 ,  116 ,  316 ).    
     
     
         5 . The foil bag as set forth in  claim 4 , 
 characterized in that the lid ( 20 ,  120 ,  220 ,  320 ) is retained on the frame ( 18 ,  118 ,  218 ,  318 ) by means of a living hinge.    
     
     
         6 . The foil bag as set forth in  claim 4 , 
 characterized in that a detent means is formed on the closure element ( 16 ,  116 ,  316 ) so that the lid ( 20 ,  120 ,  220 ,  320 ) reopenably closes the dispensing opening ( 14 ) by snap-fit engagement with the detent means.    
     
     
         7 . The foil bag as set forth in  claim 4 , 
 characterized in that a perimeter collar ( 22 ,  222 ), which is oriented so as to conform to the frame ( 18 ,  218 ) and which projects into the dispensing opening ( 14 ) when the lid ( 20 ,  220 ) is closed, is formed on said lid ( 20 ,  220 ).    
     
     
         8 . The foil bag as set forth in  claim 4 , 
 characterized in that the lid ( 20 ) rests on a bearing surface ( 24 ) formed on the frame ( 18 ) when in the closed condition.    
     
     
         9 . The foil bag as set forth in  claim 8 , 
 characterized in that a perimeter ridge ( 26 ,  126 ) is formed beside the bearing surface ( 24 ) on the frame ( 18 ,  118 ,  218 ,  318 ), said ridge being oriented to conform to the lid ( 20 ,  120 ,  220 ,  320 ) which it surrounds.    
     
     
         10 . The foil bag as set forth in  claim 3 , 
 characterized in that a perimeter welding edge ( 34 ) is formed on the frame ( 18 ,  118 ,  218 ,  318 ) of the closure element ( 16 ,  116 ,  316 ).    
     
     
         11 . The foil bag as set forth in  claim 3 , 
 characterized in that a sealing plate ( 36 ) forming an airtight closure of the dispensing opening ( 14 ) is attached to the frame ( 18 ).    
     
     
         12 . The foil bag as set forth in  claim 11 , 
 characterized in that the sealing plate ( 36 ) is retained on the frame ( 18 ) by a perimeter break line ( 40 ).    
     
     
         13 . The foil bag as set forth in  claim 11 , 
 characterized in that a pivotal pull ring ( 38 ) by means of which the sealing plate ( 36 ) may be removed is attached to the sealing plate ( 36 ).    
     
     
         14 . The foil bag as set forth in  claim 1 , 
 characterized in that the dispensing opening ( 14 ) is configured as a round, oval, triangular or polygonal shape.    
     
     
         15 . The foil bag as set forth in claim l, 
 characterized in that the closure element ( 16 ,  116 ,  316 ) is made of a hard plastic material.    
     
     
         16 . The foil bag as set forth in  claim 1 , 
 characterized in that the closure element ( 16 ,  116 ,  316 ) is manufactured by injection moulding, diecasting or any other casting process.    
     
     
         17 . The foil bag as set forth in  claim 1 , 
 characterized in that the closure element ( 16 ,  116 ,  316 ) is attached to the top side of the foil bag ( 10 ,  110 ,  210 ,  310 ) on the center thereof.    
     
     
         18 . The foil bag as set forth in  claim 4 , 
 characterized in that an elastomer gasket ( 162 ,  262 ,  362 ) made of an elastomeric material, more specifically of PETP, PP, PE, PTA or PTE, is provided on the closure element ( 16 ,  116 ,  316 ), between the frame ( 18 ,  118 ,  218 ,  318 ) and the lid ( 20 ,  120 ,  220 ,  320 ).    
     
     
         19 . The foil bag as set forth in  claim 18 , 
 characterized in that the elastomer gasket ( 162 ,  262 ,  362 ) is disposed within the closure element ( 16 ,  116 ,  316 ).    
     
     
         20 . The foil bag as set forth in  claim 18 , 
 characterized in that the elastomer gasket ( 262 ) is partially compressed when the lid ( 220 ) is closed.    
     
     
         21 . The foil bag as set forth in  claim 18 , 
 characterized in that the elastomer gasket ( 162 ,  262 ,  362 ) is designed to extend along the perimeter.    
     
     
         22 . The foil bag as set forth in  claim 18 , 
 characterized in that the elastomer gasket ( 162 ) is attached to the lid ( 120 ) and comes to rest against a perimeter shoulder ( 164 ) integrally formed with the frame ( 118 ) when the lid is closed ( 120 ).    
     
     
         23 . The foil bag as set forth in  claim 18 , 
 characterized in that the elastomer gasket ( 262 ) is embedded in a shoulder ( 264 ) integrally formed with the frame ( 218 ) and comes to rest against a collar ( 222 ) integrally formed with the lid ( 220 ) when the lid ( 220 ) is closed.    
     
     
         24 . The foil bag as set forth in  claim 23 , 
 characterized in that the elastomer gasket ( 262 ) is configured to have a mushroom-type cross section.    
     
     
         25 . The foil bag as set forth in  claim 18 , 
 characterized in that the elastomer gasket ( 362 ) is configured to have a size that causes it to be partially turned up when the lid ( 320 ) is closed.