Flexible sachet having a triangular shape

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.

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.

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.

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.