Packing bag

Abstract

In a packing bag made of a flexible film-like first material with, a substantially rectangular base which is formed as a standing surface with longitudinal and side edges, the base comprises a second material giving form-stability to the bag in the area close to the base, and has a base fold line running in the center and parallel to the two longitudinal edges and dividing the base into two base parts which can be folded against each other, and the longitudinal edges form side fold lines between the base and substantially rectangular side walls arranged on two opposite sides of the base, wherein the fold part which is constructed from the base and the two side walls is glued to the bag.

1 . Packing bag of a flexible film-like first material with a substantially rectangular base formed as a standing surface with two pairs of opposed edges,
 characterised in that   the base comprises a second material giving the bag form-stability in the area close to the base, and has a base fold line running in the centre between and parallel to one of the two pairs of edges and dividing the base into two base parts which can be folded against each other, and the one of the two pairs of edges form side fold lines between the base and substantially rectangular side walls which are arranged on two opposing sides of the base, wherein a fold part which is formed from the base and the two side walls is glued to the bag.   
   
   
       2 . Packing bag according to  claim 1 , characterised in that the fold part which is formed from the base and the two side walls in a first position is substantially V-shaped in relation to a theoretical section plane perpendicular to the fold lines and in a second position the two base parts form the substantially flat base as a standing surface and the two side walls project from the base, wherein the fold part which is formed from the base and the two side walls can be brought from the first position into the second position by pressure on the base fold line connecting the two base parts to form the substantially flat base. 
   
   
       3 . Packing bag according to  claim 2 , characterised in that the side fold lines are outwardly curved in relation to the base fold line so that the fold part which is constructed from the base and the two side walls assumes a stable form in the second position. 
   
   
       4 . Packing bag according to  claim 1 , characterised in that the end of the bag which is remote from the base can be separated along a tear line lying substantially parallel to the standing surface of the bag. 
   
   
       5 . Packing bag according to  claim 4 , characterised in that the separable end of the bag is covered by a reinforcement part. 
   
   
       6 . Packing bag according to  claim 1 , characterised in that at the end of the bag which is remote from the base is arranged an opening and reclosing system selected from a group consisting of: a zip closure and a peelable and reclosable closing strip of a contact adhesive. 
   
   
       7 . Packing bag according to  claim 1 , characterised in that the bag material is a one-layer or multi-layer film of plastics, laminated where applicable with a paper layer or aluminum film, or a paper laminated with plastics. 
   
   
       8 . Packing bag according to  claim 1 , characterised in that the fold part which is constructed from the base and the two side walls is selected from a group consisting of: cardboard, transparent plastic, and opaque plastic. 
   
   
       9 . Packing bag according to  claim 1 , characterised in that the fold part which is constructed from the base and the two side walls is attached to the packing bag by way of spot glue points. 
   
   
       10 . Packing bag according to  claim 1 , characterised in that the bag is one of a group consisting of: a standing bag, a hose bag and an extruded bag. 
   
   
       11 . A method comprising using a packing bag according to  claim 1  for packing foodstuffs. 
   
   
       12 . A method comprising using a packing bag according to  claim 1  for packing fillings intended for heating in a microwave oven. 
   
   
       13 . Packing bag according to  claim 5 , wherein the reinforcement part comprises a material selected from a group consisting of: cardboard, transparent plastic, and opaque plastic. 
   
   
       14 . A packing bag comprising:
 a bag member formed of a flexible first material; and   a fold part connected to the bag member and formed of a second material giving the bag form-stability in the area close to the base, the fold part comprising a substantially rectangular base and two substantially rectangular side walls connected to opposed edges of the base,   wherein the fold part has a base fold line running along a center thereof, between and parallel to the opposed edges of the base and dividing the base into two base parts which can be folded against each other, and   wherein the opposed edges of the base form fold lines between the base and the side walls.