Method for forming a pouch

Abstract

A method of forming and filling a pouch, comprises forming opposing walls of a film; sealing the opposing walls of film together to form at least one pouch; filling an interior section of the at least one pouch through an opening in an upper portion of the at least one pouch with a flowable material; forming a top sealed expressing-shaped region to close the opening in the at least one pouch; and cradling the pouch with a foldable flat that is more rigid than the pouch that can be folded or rolled to compress the pouch to express the flowable material through the expressing shaped region.

1 . A method of forming and filling a pouch, comprising:
 forming opposing walls of a film;   sealing the opposing walls of film together to form at least one pouch;   filling an interior section of the at least one pouch through an opening in an upper portion of the at least one pouch with a flowable material;   forming a top sealed expressing-shaped region to close the opening in the at least one pouch; and   cradling the pouch with a foldable flat that is more rigid than the pouch that can be folded or rolled to compress the pouch to express the flowable material through the expressing shaped region.   
     
     
         2 . The method of  claim 1 , wherein the more rigid flat comprises a crease that is a pressed, folded or scored line marked into a surface of the flat to facilitate longitudinal folding of the packet. 
     
     
         3 . The method of  claim 1 , wherein the more rigid flat comprises a crease that extends along the pouch between the two closure ends to facilitate folding or rolling the more rigid flat and wherein the crease is a divide between more rigid flat sections configured to form cradling compression surfaces against the enclosure. 
     
     
         4 . The method of  claim 1 , wherein the pouch comprises a film material and the more rigid flat comprises a material that is more rigid than the film material. 
     
     
         5 . The method of  claim 1 , wherein the more rigid flat comprises a substantially conformal substrate that can be rolled or folded against the pouch. 
     
     
         6 . The method of  claim 1 , wherein the pouch comprises a film material and the more rigid flat comprises a substantially rigid and less compliant material than the material of the film pouch. 
     
     
         7 . The method of  claim 1 , wherein the more rigid flat comprises a stiff paper, cardstock, fiberboard or thermoplastic material. 
     
     
         8 . The method of  claim 1 , wherein the more rigid flat comprises an 8 pt. cardstock 
     
     
         9 . The method of  claim 1 , wherein the pouch comprises a multilayer polymer and aluminum layer laminate having a thickness between about 0.0045 and about 0.0075. 
     
     
         10 . The method of  claim 1 , wherein the pouch comprises a multilayer polymer and aluminum layer laminate having a thickness of about 0.0060 inches. 
     
     
         11 . The method of  claim 1 , wherein the more rigid flat comprises a paperboard more than ten mills (0.010 inch) in thickness. 
     
     
         12 . The method of  claim 1 , wherein the more rigid flat comprises corrugated fiberboard having a thickness between about 0.045 and 0.065. 
     
     
         13 . The method of  claim 1 , wherein the more rigid flat comprises a fluted corrugated medium sandwiched between flat paper pieces. 
     
     
         14 . The method of  claim 1 , wherein the more rigid flat comprises corrugated fiberboard having a thickness between 0.50 and 0.60 inches. 
     
     
         15 . The method of  claim 1 , wherein the pouch comprises a film that is substantially impermeable to water vapor and oxygen. 
     
     
         16 . The method of  claim 1 , wherein the pouch comprises permeability rated film of 1 or lower. 
     
     
         17 . The method of  claim 1 , wherein the pouch comprises a plastic or foil film material. 
     
     
         18 . The method of  claim 1 , comprising a semicircular-shaped tear tab to facilitate opening at the first closure end. 
     
     
         19 . The method of  claim 1 , comprising filling the pouch with a sealant. 
     
     
         20 . The method of  claim 1 , comprising filling the pouch with a sealant comprising an RTV composition. 
     
     
         21 . The method of  claim 1 , comprising filling the pouch with a sealant comprising a polysiloxane component comprising a mixture or reaction product of (i) a polysiloxane polymer having hydrolyzable substituent groups and (ii) a polyfunctional silicon compound having two or more hydrolyzable substituent groups. 
     
     
         22 . The method of  claim 1 , comprising filling the pouch with a sealant comprising a polysiloxane component comprising a mixture or reaction product of (i) a polysiloxane polymer having hydrolyzable substituent groups and (ii) a polyfunctional silicon compound having two or more hydrolyzable substituent groups and includes a filler. 
     
     
         23 . The method of  claim 1 , comprising filling the pouch with a sealant comprising a polysiloxane component comprising a mixture or reaction product of (i) a polysiloxane polymer having hydrolyzable substituent groups and (ii) a polyfunctional silicon compound having two or more hydrolyzable substituent groups and includes a filler and a condensation cure catalyst. 
     
     
         24 . The method of  claim 1 , comprising an elongated pouch having a longitudinal axis and an interior, the pouch including a first closure forming a downstream end of the pouch and a second closure forming an upstream end of the pouch, a dispensing extension to the upstream end closure in a tip form extending outwardly and having a flow passageway in fluid communication with the pouch interior. 
     
     
         25 . The method of  claim 1 , wherein the pouch comprises a transparent film material.