Perforated form-fill-seal (ffs) bag

Abstract

Described is a gusseted bag or flat bag ( 200,201,212,214,217 ), which is produced and filled by a form-fill-seal (FFS) machine and which has a tear-open perforation ( 207,208,216 ) at least in the area of at least one of the corners of the bag. The invention is characterized in that the bag has a corner weld seal ( 206 ) in the area of at least one corner.

1 . Gusseted bag or flat bag ( 200 , 201 , 212 , 214 , 217 ), 
 which is produced and filled by an FFS machine and    which comprises a tear-open perforation ( 207 , 208 , 216 ) at least in the area of one of the corners of the bag,    wherein the bag comprises a cross-weld seal ( 206 ) in the area of at least one corner,    said gusseted bag or flat bag being characterized in that the forming of the tear-open perforation ( 207 , 208 , 216 ) in the area of at least one corner is changed in such a way that the perforation ( 207 ) in the interspace between the edge ( 209 ) of the bag ( 200 , 212 , 214 , 217 ) and the corner weld seal ( 206 ) is provided in a different manner as compared to the perforation ( 208 ) between the corner weld seal ( 206 ) and the centerline (M) of the bag ( 200 ).    
   
   
       2 . Gusseted bag or flat bag according to  claim 1 , 
 characterized in that    the length or the periphery of the perforation incisions ( 207 ) in the interspace between the edge of the bag ( 200 ) and the corner weld seal ( 206 ) is larger than the length of the perforation incisions ( 208 ) between the corner weld seal ( 206 ) and the centerline (M) of the bag ( 200 , 214 , 217 ).    
   
   
       3 . Gusseted bag or flat bag according to  claim 1 , 
 characterized in that    the length or the periphery of at least the perforation cuts ( 208 ) between the corner weld seal ( 206 ) and the centerline (M) of the bag ( 200 , 214 , 217 ) is smaller than the periphery of the grains of the fill goods of the bag ( 200 , 214 , 217 ).    
   
   
       4 . Gusseted bag or flat bag according to  claim 1 , 
 characterized in that    the length or the periphery of at least the perforation cuts ( 208 ) between the corner weld seal ( 206 ) and the centerline (M) of the bag ( 200 , 214 , 217 ) is smaller than the diameter of the grains of the fill goods of the bag ( 200 ).    
   
   
       5 . Gusseted bag or flat bag according to  claim 1 , 
 characterized in that    the corner weld seal ( 206 ) comprises passages ( 229 ).    
   
   
       6 . Gusseted bag or flat bag according to  claim 1 , 
 characterized in that    the tear-open perforation ( 207 , 208 , 216 ) in the area of at least one corner is present only in the interspace between the bag edge ( 209 ) and the corner weld seal ( 206 ).    
   
   
       7 . Gusseted bag or flat bag according to  claim 1 , 
 characterized in that    both the corners of the top ( 211 ) and/or of the bottom ( 210 ) are equipped with corner areas according to  claim 1 .    
   
   
       8 . Gusseted bag or flat bag according to  claim 1 , 
 characterized in that    the perforation cuts ( 207 , 208 , 216 ) at least in the area of one corner are arranged in one line.    
   
   
       9 . Method for the production and filling of a gusseted bag with the help of an FFS machine, 
 in which the gusseted bag ( 200 , 201 , 212 , 214 , 217 ) is provided with a tear-open perforation, and    in which the bag ( 200 , 201 , 212 , 214 , 217 ) is provided with a corner weld seal ( 206 ),    said method being characterized in that    the tear-open perforation ( 207 , 208 , 216 ) is inserted during the processing in the FFS machine and    that the perforation ( 207 ) in the interspace between the edge ( 209 ) of the bag ( 200 ,  212 ,  214 ,  217 ) and the corner weld seal ( 206 ) is provided in a different manner as compared to the perforation ( 208 ) between the corner weld seal ( 206 ) and the centerline (M) of the bag ( 200 ).    
   
   
       10 . FFS machine for the production and filling of gusseted bags or flat bags ( 200 , 201 , 212 , 214 , 217 ), said FFS machine comprising means for applying a tear-open perforation ( 220 , 240 ), wherein components of the gusseted bags ( 200 , 201 , 212 , 214 , 217 ) can be provided with a tear-open perforation ( 220 , 240 ) using said means, while they pass through the FFS machine, 
 said FFS machine being characterized in that    means for applying the tear-open perforation ( 220 , 240 ) are provided, wherein the bags ( 200 , 201 , 212 , 214 , 217 ) can be provided using said means with perforation cuts ( 207 , 208 , 216 ), of which the length or periphery varies over the width of the bags ( 200 , 201 , 212 , 214 , 217 ).    
   
   
       11 . FFS machine according to  claim 10 , 
 characterized in that    the means for applying the tear-open perforation ( 220 , 240 ) are provided, wherein the bags ( 200 ,  201 ,  212 ,  214 ,  217 ) can be provided using said means with perforation cuts ( 207 ,  208 , 216 ), of which the length or periphery varies over the width of the bags ( 200 , 201 , 212 , 214 , 217 ).    
   
   
       12 . FFS machine according to the  claim 11   characterized in that    the means for applying the tear-open perforation comprise perforation knives ( 252 , 253 ) or punches, whose active cutting surface or punching surface varies over the width of the bags ( 200 , 201 , 212 , 214 , 217 ) to be processed.    
   
   
       13 . FFS machine according to  claim 12   characterized in that    a perforation knife ( 252 , 253 ) is provided, in order to insert only one perforation cut for each sack.