Flexible sachet having a triangular shape

Abstract

The present invention relates to a sachet ( 1 ) having a triangular shape and comprising an interior space ( 6 ) enclosed by one sheet of flexible blank material, the sheet being folded upon itself to form a front layer ( 2 ) and a rear layer ( 3 ) of the sachet ( 1 ). The front layer ( 2 ) and the rear layer ( 3 ) are joined by sealing ( 4 ) located along two edges ( 5 ) of the sachet ( 1 ) to define the interior space ( 6 ). The sachet ( 1 ) comprises a means ( 7 ) for starting opening of the sachet ( 1 ) as well as a tear strip ( 11 ) arranged between the front layer ( 2 ) and the rear layer ( 3 ) of the sachet ( 1 ) in proximity to and running at least partially along the sealing ( 4 ) at one of the two edges ( 5 ) joined by sealing ( 4 ). The shape of the sachet ( 1 ) and the arrangement of the tear strip ( 11 ) are so that the sachet ( 1 ) obtains a cone-like shape after opening so that it is easy both to hold by hand and to reach into to take out content from the sachet ( 1 ). The invention further relates to a method of manufacturing such a sachet ( 1 ). The sachet ( 1 ) may e.g. be manufactured in a chain of sachets.

1 . Sachet having a triangular shape and comprising:
 an interior space enclosed by one sheet of flexible blank material, the sheet being folded upon itself to form a front layer and a rear layer of the sachet; and   a member for starting an opening of the sachet,   wherein the front layer and the rear layer are joined by sealing located along two edges of the sachet to define the interior space, and   a tear strip is arranged between the front layer and the rear layer of the sachet in proximity to and runs at least partially along the sealing at one of the two edges joined by sealing, for opening of the sachet,   whereby the sachet obtains a cone-like shape after opening.   
     
     
         2 . Sachet according to  claim 1 , wherein the sachet has a shape of a right triangle having the tear strip arranged along one of the catheti. 
     
     
         3 . Sachet according to  claim 2 , wherein the sachet has a shape of an isosceles right triangle. 
     
     
         4 . Sachet according to  claim 1 , wherein the member for starting opening of the sachet is a pre-score or split extending from an edge of the sachet where the sheet is folded. 
     
     
         5 . Sachet according to  claim 1 , wherein the member for starting opening of the sachet extends towards a row of split lines located to so that a designated corner of the sachet can be manually torn off by starting at the pre-score or split. 
     
     
         6 . Sachet according to  claim 5 , wherein the row of split lines extends to the tear-strip so that the tearing off of the designated corner can continue into a tearing along the tear strip. 
     
     
         7 . Sachet according to  claim 1 , wherein the front layer and the rear layer are joined by welding. 
     
     
         8 . Sachet according to  claim 1 , wherein the front layer and the rear layer are joined by cold sealing. 
     
     
         9 . Sachet according to  claim 1 , wherein an eatable product is located inside the interior space. 
     
     
         10 . A chain of sachets being formed by a plurality of interconnected sachets each having a triangular shape and comprising:
 an interior space enclosed by one sheet of flexible blank material, the sheet being folded upon itself to form a front layer and a rear layer of the sachet; and   a member for starting an opening of the sachet,   wherein the front layer and the rear layer are joined by sealing located along two edges of the sachet to define the interior space, and   a tear strip is arranged between the front layer and the rear layer of the sachet in proximity to and runs at least partially along the sealing at one of the two edges joined by sealing, for opening of the sachet, whereby the sachet obtains a cone-like shape after opening.   
     
     
         11 . A method of manufacturing a triangular closed flexible sachet holding a product, the method comprising:
 folding upon itself a sheet of flexible blank material to form a triangular interior space comprising a front layer and a rear layer;   filling the interior space with the product;   sealing the sheet along two edges of the sachet so as to capture the product in the interior space;   applying a member for starting opening of the sachet; and   applying a tear strip to the sheet along and at a predefined distance from an edge of the sheet before it is folded upon itself so that after folding, the tear strip is arranged between the front layer and the rear layer in proximity to and running at least partially along the sealing at one of the two edges joined by sealing.   
     
     
         12 . Method of manufacturing a chain of interconnected triangular closed flexible sachets holding a product, comprising:
 folding upon itself a sheet of flexible blank material to form a triangular interior space comprising a front layer and a rear layer;   filling the interior space with the product;   sealing the sheet along two edges of the sachet so as to capture the product in the interior space;   applying a member for starting opening of the sachet;   repeating the steps above and below one or more time; and   applying a row of tear strips to the sheet along and at a predefined distance from an edge of the sheet and with a predefined spacing between the tear strips before the sheet is folded upon itself so that after folding, one tear strip is arranged between the front layer and the rear layer in proximity to and running at least partially along the sealing at one of the two edges joined by sealing.   
     
     
         13 . Method of manufacturing a chain of triangular closed flexible sachet holding a product, comprising:
 rolling a sheet of flexible blank material around itself or around a tube until a margin of the sheet is united with the sheet itself enclosing a cylindrical volume and creating an overlap of the sheet with itself along the margin;   joining the two layers of the sheet at the overlap by sealing to create a tubular structure;   dispensing the product into the tubular structure; and   flattening the tubular structure and joining the already formed sealing to the opposite surface of the flattened tube creating a sealing of three layers enclosing triangular interior spaces enclosing the product;   applying a member for starting opening of the sachet; and   applying a row of tear strips to the sheet along and at a predefined distance from an edge of the sheet and with a predefined spacing between the tear strips before the sheet is folded upon itself so that after folding, one tear strip is arranged between the front layer and the rear layer in proximity to and running at least partially along the sealing at one of the two edges joined by sealing.   
     
     
         14 . Method according to  claim 11 , wherein the member for starting opening of the sachet is a pre-score or split extending from an edge of the sachet where the sheet is folded. 
     
     
         15 . Method according to  claim 11 , wherein the sheet is folded upon itself at a 45 degrees angle relative to the length to form a right angle triangular shaped interior space. 
     
     
         16 . Method according to  claim 11 , wherein the sealing is selected from the group consisting of: welding, adhesive bonding, cold sealing and ultrasonic sealing 
     
     
         17 . Method according to  claim 11 , comprising providing a row of split lines extending between the member for starting opening the sachet and the tear strip. 
     
     
         18 . Method according to  claim 11 , comprising dissociating the chain of triangular sachets to form a plurality of individual triangular sachets. 
     
     
         19 . Method according to  claim 12 , wherein the member for starting opening of the sachet is a pre-score or split extending from an edge of the sachet where the sheet is folded. 
     
     
         20 . Method according to  claim 12 , wherein the sheet is folded upon itself at a 45 degrees angle relative to the length to form a right angle triangular shaped interior space. 
     
     
         21 . Method according to  claim 12 , wherein the sealing is selected from the group consisting of: welding, adhesive bonding, cold sealing and ultrasonic sealing 
     
     
         22 . Method according to  claim 12 , comprising providing a row of split lines extending between the member for starting opening the sachet and the tear strip. 
     
     
         23 . Method according to  claim 12 , comprising dissociating the chain of triangular sachets to form a plurality of individual triangular sachets. 
     
     
         24 . Method according to  claim 13 , wherein the member for starting opening of the sachet is a pre-score or split extending from an edge of the sachet where the sheet is folded. 
     
     
         25 . Method according to  claim 13 , wherein the sheet is folded upon itself at a 45 degrees angle relative to the length to form a right angle triangular shaped interior space. 
     
     
         26 . Method according to  claim 13 , wherein the sealing is selected from the group consisting of: welding, adhesive bonding, cold sealing and ultrasonic sealing 
     
     
         27 . Method according to  claim 13 , comprising providing a row of split lines extending between the member for starting opening the sachet and the tear strip.