Method For Production Of A Bag In A Flexible Material Comprising A Shaped Sealing Zone

Abstract

A method of manufacturing at least one sample pouch from a film of flexible, heat-sealable material begins with providing a film of flexible, heat-sealing material with two opposing edges. Next, arrange the opposing edges on top of one another so as to form a body with a generally tubular wall. Next, heat-seal the opposing edges to form a longitudinal sealing area between the two ends of the body. Then, transversally heat-seal the wall of the body to form at least one transversal sealing area with a general rigidity. Then, fill the pouch with product and cut a shape in at least one transversal sealing area. The cut-out is made at a distance from the inner edge of the transversal sealing area. The cut-out has at least one part that is generally tiled in relation to the longitudinal and transversal directions of the pouch in order to guarantee the seal of the body while shaping the transversal sealing area in a given way.

1 . A method of manufacturing at least one sample pouch from a film of flexible, heat-sealable material, the method comprising following steps: 
 providing a film of flexible, heat-sealing material with two opposing edges;    arranging the opposing edges on top of one another so as to form a body comprising a generally tubular wall;    heat-sealing the opposing edges to form a longitudinal sealing area between the two ends of the body;    transversally heat-sealing the wall of the body to form at least one transversal sealing area with a general rigidity;    filling the pouch with product; and    cutting a shape in at least one transversal sealing area, said cut-out being made at a distance from the inner edge of the transversal sealing area and comprising at least one part that is generally tilted in relation to the longitudinal and transversal directions of the pouch, in order to guarantee the seal of the body while shaping the transversal sealing area in a predetermined way.    
   
   
       2 . The method according to  claim 1 , further comprising the step of making pouch hanging means in the shaped cut-out of the transversal sealing area.  
   
   
       3 . The method according to  claim 1 , further comprising the step of making means for guiding the product output.  
   
   
       4 . The method according to  claim 3 , wherein the step of making means for guiding the product output further comprises during the transversal heat-sealing stage, forming a transversal sealing area comprising an inner part with a transversal dimension that is smaller than the transversal dimension of the body and an outer part with a transversal dimension that is equal to the transversal dimension of the body so as to form means for guiding the product outlet.  
   
   
       5 . The method according to  claim 1 , further comprising the step of making means for opening the pouch.  
   
   
       6 . The method according to  claim 5 , wherein the step of making means for opening the pouch further comprises making a line of least resistance on all or part of the pouch and/or a notch forming means for opening the pouch.  
   
   
       7 . The method according to  claim 1 , further comprising the step of making a single pouch, the body having an opening at each end, the edges of the openings being heat-sealed during the transversal heat-sealing step to form a transversal sealing area at each end of the body.  
   
   
       8 . The method according to  claim 1 , further comprising the step of making a longitudinal succession of pouches, the body having an opening at each end, the edges of the openings being heat-sealed during the transversal heat-sealing step to form a transversal sealing area at each end of the body, intermediate transversal sealing areas being made between the end transversal sealing areas during the transversal heat-sealing step.  
   
   
       9 . The method according to  claim 8 , further comprising the step of during the transversal heat-sealing area step, forming at least one sealing area between the end transversal sealing areas comprising the transversal sealing area of one pouch and the opposite transversal sealing area of the next pouch.  
   
   
       10 . The method according to  claim 9 , further comprising the step of making means for separating the pouches or groups of pouches in a sealing area.  
   
   
       11 . The method according to  claim 10 , further comprising the step of making a line of least resistance between the transversal sealing area of one pouch and the opposite transversal sealing area of the next pouch.  
   
   
       12 . A pouch comprising a generally tubular body, a longitudinal sealing area between the two ends of the body and at least one transversal sealing area which is generally rigid on one end of the body, said transversal sealing area comprising a shaped cut-out at a distance from the inner edge of the transversal sealing area, said shaped cut-out comprising at least one part which is generally tilted in relation to the longitudinal and transversal directions of the pouch.  
   
   
       13 . The ouch according to  claim 12 , further comprising a pouch hanging means in the shaped cut-out of the transversal sealing area.  
   
   
       14 . The pouch according to  claim 12 , further comprising a means for guiding the product output.  
   
   
       15 . The pouch according to  claim 12 , further comprising a means for opening the pouch.  
   
   
       16 . A longitudinal succession of pouches comprising at least two pouches, each transversal sealing area of one sachet being connected to the opposite transversal sealing area of the next pouch.