Packaging With Improved Reclosable Opening

Abstract

A packaging with improved reclosable opening is disclosed having a packaging body. The packaging body has an upper front main packaging sheet; a lower front main packaging sheet and a back main packaging sheet which are sealed together to form an edge-to-edge sealing. A reclosable opening is provided for inserting objects into the packaging. A diverting is means predisposed in such a manner and has a dimension sufficient to cover the reclosable opening to direct airflow away from the reclosable opening when there is an increase in internal air pressure. A weakened sealing is formed at a part of the edge-to-edge sealing wherein the weakened sealing ruptures when the increase in internal air pressure has build up to a critical point. When increased internal air pressure has build up to a critical point, the weakened sealing ruptures to allow air to vent through. The critical point is reached when the internal pressure is greater than external pressure to a sufficient extent to rupture the weakened sealing. The weakened sealing can be created by using a heat sealing temperature which is lower than the sealing temperature used for forming the rest of the edge-to-edge sealing, having a designated sealing area smaller than the sealing area of the rest of the edge-to-edge sealing, forming a notch on part of the edge-to-edge sealing, or disposing a film between the front and back main packaging sheets on part of the edge-to-edge sealing, wherein the film is made of a second material.

1 . A packaging with a reclosable opening comprising:
 a packaging body comprising an upper front main packaging sheet, a lower front main packaging sheet and a back main packaging sheet which are sealed together to form an edge-to-edge sealing;   a reclosable opening on said packaging for inserting objects into said packaging;   a diverting means covering said reclosable opening which is predisposed to direct airflow away from said reclosable opening when there is an increase in internal air pressure; and   a weakened sealing formed at part of said edge-to-edge sealing wherein said weakened sealing ruptures when said increase in internal air pressure has build up to a critical point.   
     
     
         2 . The packaging with improved reclosable opening according to  claim 1  wherein said weakened sealing is created by using a heat sealing temperature which is lower than the sealing temperature used for forming the rest of said edge-to-edge sealing. 
     
     
         3 . The packaging with improved reclosable opening according to  claim 1  wherein said weakened sealing is a designated sealing area smaller than the sealing area of the rest of said edge-to-edge sealing. 
     
     
         4 . The packaging with improved reclosable opening according to  claim 1  wherein said weakened sealing is created by forming a notch on part of said edge-to-edge sealing. 
     
     
         5 . The packaging with improved reclosable opening according to  claim 1  wherein said weakened sealing is created by disposing a film between said front and back main packaging sheets on part of said edge-to-edge sealing, wherein said film is made of material different from either said front or back main packaging sheets. 
     
     
         6 . The packaging with improved reclosable opening according to  claim 2  wherein said weakened sealing is at the top part of said edge-to-edge sealing. 
     
     
         7 . The packaging with improved reclosable opening according to  claim 1  wherein said critical point is reached when the internal air pressure is greater than external air pressure to a sufficient extent to rupture said weakened sealing. 
     
     
         8 . The packaging with improved reclosable opening according to  claim 1  wherein said reclosable opening is a zipper. 
     
     
         9 . The packaging with improved reclosable opening according to  claim 1  wherein said diverting means is an extended part of said upper front main packaging sheet. 
     
     
         10 . A packaging with reclosable opening comprising:
 a reclosable opening on said packaging for inserting objects into the packaging;   a diverting means covering said reclosable opening which is predisposed to direct airflow away from said reclosable opening and part of said diverting means detaches from the rest of the packaging when an increase in internal air pressure has build up to a critical point;   a packaging body comprising an upper front main packaging sheet, a lower front main packaging sheet and a back main packaging sheet which are sealed together to form an edge-to-edge sealing; and   a weakened sealing formed at said edge-to-edge sealing of said upper front main packaging sheet and said back main packaging sheet, said upper front main packaging sheet is made of material different from said back main packaging sheet, wherein said weakened sealing ruptures when said increase in internal air pressure has build up to a critical point.   
     
     
         11 . The packaging with improved reclosable opening according to  claim 10  wherein said lower front main packaging sheet is made of a second material and said back main packaging sheet is made of third material, wherein said edge-to-edge sealing formed by said lower front main packaging sheet and said back main packaging sheet is stronger than said weakened sealing. 
     
     
         12 . The packaging with improved reclosable opening according to  claim 10  wherein said diverting means is an extended part of said upper front main packaging sheet. 
     
     
         13 . The packaging with improved reclosable opening according to  claim 10  wherein said critical point is reached when the internal air pressure is greater than external air pressure to a sufficient extent to rupture said weakened sealing. 
     
     
         14 . The packaging with improved reclosable opening according to  claim 10  wherein said reclosable opening is a zipper. 
     
     
         15 . The packaging with improved reclosable opening according to  claim 3 , wherein said weakened sealing is at the top part of said edge-to-edge sealing. 
     
     
         16 . The packaging with improved reclosable opening according to  claim 4 , wherein said weakened sealing is at the top part of said edge-to-edge sealing. 
     
     
         17 . The packaging with improved reclosable opening according to  claim 5 , wherein said weakened sealing is at the top part of said edge-to-edge sealing.