Tubular Bag, Method for Producing a Tubular Bag and Packaging Machine for Carrying Out The Method for Producing a Tubular Bag

Abstract

A tubular bag includes a top side and a bottom side running parallel to the top side, the tubular bag further having a first seam running along the top side, along the bottom side, or parallel to the top side and to the bottom side. The first seam is produced by bonding. The tubular bag includes at least two lateral second seams connecting the top side to the bottom side. The second seams are produced by bonding. A flap is formed on the outside parallel to the first seam. Furthermore, a method is provided for producing the tubular bag and a packaging machine is provided for carrying out the method.

1 . A tubular bag comprising a top side and a bottom side running parallel to the top side,
 the tubular bag comprising a first seam running along the top side along the bottom side, or parallel to the top side and to the bottom side, the first seam being produced by bonding, and   the tubular bag comprising at least two lateral second seams connecting the top side to the bottom side, the second seams being produced by bonding, wherein
 a flap is formed on the outside parallel to the first seam. 
   
     
     
         2 . The tubular bag according to  claim 1 , wherein
 the flap is formed by a strip, which is incorporated in the second seams and/or glued on.   
     
     
         3 . The tubular bag according to  claim 1 , wherein
 the tubular bag has a print and/or is embossed, and the print and/or the embossing comprises a fold line running parallel above the flap and/or at least one fold line starting at one of the second seams and above the flap and running toward the top side.   
     
     
         4 . The tubular bag according to  claim 1  wherein
 the tubular bag comprises at least one third seam and/or at least one fold on the top side and/or on the bottom side. 
 
     
     
         5 . The tubular bag according to  claim 1 , wherein
 the tubular bag is made of a film comprising polyethylene (PE), polypropylene (PP), and/or paper.   
     
     
         6 . A method for producing a tubular bag according to  claim 1 , a film web being formed into a tube by forming shoulder;
 the tube being longitudinally connected by bonding by a first longitudinal connecting unit to form a first seam, and   the tube being bonded transversely twice by transverse connecting unit, thus forming at least two second seams, to form a tubular bag, wherein
 a flap is formed on the outside parallel to the first seam. 
   
     
     
         7 . The method according to  claim 6 , wherein
 the flap is formed by gluing on a strip and/or connecting a strip by bonding, by the transverse connecting unit.   
     
     
         8 . The method according to  claim 6 , wherein
 the film is printed on and/or embossed, and the print and/or the embossing comprises a fold line running parallel above the flap and/or at least one fold line starting at one of the second seams and above the flap and running toward the top side.   
     
     
         9 . The method according to  claim 6 , wherein
 the film and/or the tube longitudinally connected by a first longitudinal connecting unit to form the first seam is folded inward on one or both sides and/or longitudinally connected for a second time.   
     
     
         10 . The method according to  claim 6 , wherein
 after the formation of a first one of the second seams and prior to the formation of a second one of the second seams, the tube is filled horizontally or vertically.   
     
     
         11 . A packaging machine for carrying out the method according to  claim 6 , the packaging machine comprising a forming shoulder for forming a tube from a film web,
 a first longitudinal connecting unit for producing a first seam, and   a transverse connecting unit for producing two second seams of the tube, wherein
 the packaging machine comprises a flap forming member for forming a flap running on the outside parallel to the first seam. 
   
     
     
         12 . The packaging machine according to  claim 11 , wherein
 the flap forming member is a feeding device for feeding a strip.   
     
     
         13 . The packaging machine according to  claim 11 , wherein
 the packaging machine comprises a printing unit for producing a print and/or an embossing unit for producing an embossing.   
     
     
         14 . The packaging machine according to  claim 11 , wherein
 the packaging machine comprises at least one folding unit and/or at least one second longitudinal connecting unit.   
     
     
         15 . The packaging machine according to  claim 11 , wherein
 the packaging machine comprises at least one vertical or horizontal filling unit.