Capsule for preparing beverages

Abstract

A capsule for preparing a beverage from a powdery or granular raw material is provided with a body of polymeric material, comprising a seat suitable for containing the powdery or granular raw material. The capsule is characterized in that the seat comprises an opening provided with a first edge sealed by a first foil impermeable to fluids. A collection chamber divided from said seat by means of a bottom wall having a second edge projecting in the longitudinal direction is also provided. The edge is sealed with a second foil impermeable to fluids. The body is made of plastic material impermeable to fluids, in particular to gases and even more particularly to atmospheric oxygen.

1 . Capsule for preparing a beverage from a powdery or granular raw material, provided with a body of polymeric material comprising a seat suitable for containing the powdery or granular raw material, characterized in that
 said seat comprises an opening provided with a first edge sealed by a first foil impermeable to fluids;   a collection chamber is divided from said seat by means of a bottom wall having a second edge projecting in a longitudinal direction, said second edge being sealed with a second foil impermeable to fluids; and   said body is made of plastic material impermeable to fluids and gases.   
     
     
         2 . The capsule according to  claim 1 , characterized in that said plastic material is polyethylene terephthalate. 
     
     
         3 . The capsule according to  claim 1 , characterized in that said first foil consists of a first layer of aluminium and a second layer of polyethylene terephthalate joined together, with the first layer facing an outside of the seat and the second layer facing an inside of the seat. 
     
     
         4 . The capsule according to  claim 1 , characterized in that said second foil consists of a first layer of aluminium and a second layer of polyethylene terephthalate joined together, with the first layer facing an outside of the seat and the second layer facing an inside of the seat. 
     
     
         5 . The capsule according to  claim 1 , characterized by comprising a permeable foil provided between the first foil and the top edge, said permeable foil covering the opening. 
     
     
         6 . The capsule according to  claim 3 , characterized in that said first foil comprises a first tab facilitating removal of the first foil. 
     
     
         7 . The capsule according to  claim 4 , characterized in that said second foil is provided with a second tab facilitating removal of the second first foil. 
     
     
         8 . The capsule according to  claim 1 , characterized in that one of the gases is atmospheric oxygen. 
     
     
         9 . The capsule according to  claim 3 , characterized in that said second foil consists of a first layer of aluminium and a second layer of polyethylene terephthalate joined together, with the first layer facing the outside of the seat and the second layer facing the inside of the seat. 
     
     
         10 . The capsule according to  claim 9 , characterized in that said first foil comprises a first tab facilitating removal of the first foil. 
     
     
         11 . The capsule according to  claim 10 , characterized in that said second foil is provided with a second tab facilitating removal of the second foil. 
     
     
         12 . The capsule according to  claim 3 , characterized by comprising a permeable foil provided between the first foil and the top edge, said permeable foil covering the opening. 
     
     
         13 . The capsule according to  claim 4 , characterized by comprising a permeable foil provided between the first foil and the top edge, said permeable foil covering the opening.