Sachet with increased content quantity
AssigneeThe Procter & Gamble Company
InventorsNeil John Rogers, Joseph Fernand Deflander
Life of this patent
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Abstract
The present invention relates to a process for producing a four sided seal sachet (10) filled with a pre-set volume of flowable material, the sachet being made from a flexible film comprising a metallocene catalysed resin, the sachet having a length L (11) between transverse seals (71) and a width W (12) between longitudinal seals (70), whereby the pre-set volume of flowable material is of more than 0.525×W2×L/π, so that leak-free seals are provided.
Claims18
A method for producing a four sided sealed sachet filled with a volume of flowable material containing a surfactant which can contaminate said seal, said method comprising the steps of:
- (a) forming a sachet;
- (b) filling said formed sachet with a volume of said flowable material containing a surfactant;
- and
- (c) closing the filled sachet, wherein said sachet is made of a flexible film comprising a metallocene catalysed resin, the formed sachet having a rectangular shape when emptied with a length L and a width W in between seals and wherein the volume of flowable material is at least 0.525×W2×L/π.
A method of making a four sided seal sachet filled with a flowable material, said method comprising the steps of:
- (a) forming a sachet with a first and a second longitudinal seal, a first transverse seal and one opening wherein said sachet is made of a flexible film, said film comprising a metallocene catalysed resin;
- (b) filling said sachet through said opening with a flowable material wherein said flowable material is capable of contaminating the sealing region of a second transverse seal during the filling operation;
- and
- (c) closing said sachet with a second transverse seal such that when the sachet is empty said sachet has a substantially rectangular shape with a length L between said first and second transversal seals and a width W between said first and second longitudinal seals and wherein the volume of flowable material contained in said sachet is less than about 0.75×W2×L/π such that said filled sachet has a pillow shape.
A pillow shaped sachet filled with a volume of flowable material comprising:
- a four sided seal sachet comprising a first sheet of flexible material sealably attached to a second sheet of flexible material wherein said flexible material comprises a metallocene catalysed resin, said sachet comprising a first and a second longitudinal seal and a first and a second transversal seal such that when the sachet is empty said sachet has a substantially rectangular shape with a length L between said first and second transversal seals and a width W between said first and second longitudinal seals;
- and
- a flowable material contained in said sachet wherein the volume of flowable material contained in said sachet is less than about 0.75×W2×L/π such that said filled sachet has a pillow shape.
Dependencies are inferred from the claim text.