Method for forming a pouch
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 packet for dispensing a viscous material enclosed therein, comprising:
a rigid flat having opposing edges;
opposing first and second sidewalls which are impermeable to water vapor and oxygen, and are connected and filled with a viscous material to form a filled flexible pouch having opposing first and second closure ends;
a spout forming area having a tip end at one end and integrally connected at the other end to the first closure end of the filled flexible pouch such that upon the compression of the filled flexible pouch the viscous material is expressed through the tip,
and wherein the rigid flat further has a crease running in a longitudinal axis from the first closure end to the second closure end, and wherein the crease defines a vertex of an angle between the opposing edges of the rigid flat and wherein an entire surface area of one sidewall of the filled flexible pouch, except for an expressing-shaped region of the filled flexible pouch, is substantially supported thereon, by the rigid flat and within the angle between the opposing edges of the rigid flat such that over-folding of the opposing edges of the rigid flat along the longitudinal crease in a manner which decreases the size of the angle compresses the filled flexible pouch to express the viscous material in a direction parallel to the crease and through the tip end which is located at an end to the longitudinal axis adjacent the first closure end.
2. The packet of claim 1 , wherein the spout-forming area has an intermediate rigidity or intermediate thickness between the rigidity or thickness of the flexible pouch and the rigidity or thickness of the rigid flat.
3. The packet of claim 1 , wherein the nozzle tip is formed from corresponding tapered ends of the first sidewall and the second sidewall.
4. The packet of claim 1 , wherein the first and second sidewalls comprise a single film.
5. The packet of claim 1 , wherein the nozzle tip comprises a material having more rigidity than the rest of the sidewalls.