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US 12,371,230 B2Granted
Film bag provided with suspension openings, and method for producing said film bag
AssigneeNiverplast Holding B.V.
InventorGerrit Jan Nieuwenhuis
Life of this patent
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Abstract
A film bag (1) with a front film layer (2), a rear film layer (3) and side gussets (4, 5), wherein the front film layer (2) and the rear film layer (3) and the two side gussets (4, 5) are connected together at the lower edge; and wherein the film bag (1) is provided with a set of continuous suspension openings (17, 18), each consisting of four perforation openings, so that the film bag (1) is designed to be suspended on a set of carrier pegs (29); wherein the four perforation openings of each continuous suspension opening (17, 18) are provided as slits, and wherein the front slits in the front film layer are longer than those in the rear film layer, and method for producing a film bag (1).
Claims14
A film bag comprising:
- a front film layer;
- a rear film layer;
- a left side gusset and a right side gusset, each comprising a front side gusset part and a rear side gusset part;
- wherein the front film layer and the rear film layer and the two side gussets are connected to one another at a bottom edge;
- and
- wherein the film bag is provided with a set of continuous suspension openings, each comprising four perforation openings through the front film layer, the front side gusset part, the rear side gusset part and the rear film layer, so that the film bag is designed to be suspended from a set of carrier pegs;
- wherein the four perforation openings of each continuous suspension opening are provided as slits,
- wherein the front slits of the front perforation openings in the front film layer are longer than the rear slits of the rear perforation openings in the rear film layer;
- wherein a length of the front slits of the perforation openings in the front film layer and in the two front side gusset parts complies with the equation:
- LV≥½×OD
- wherein LV=length of front slit, and OD=radial circumference of the carrier peg;
- and
- wherein a length of the rear slits in the rear perforation openings in the rear film layer and in the two rear side gusset parts complies with the formula:
- LA≤½×OD
- wherein LA=length of rear slit, and OD=radial circumference of the carrier peg.
12 more elements
A film bag comprising:
- a front film layer;
- a rear film layer;
- a left side gusset and a right side gusset, each comprising a front side gusset part and a rear side gusset part;
- wherein the front film layer and the rear film layer and the two side gussets are connected to one another at a bottom edge;
- and
- wherein the film bag is provided with a set of continuous suspension openings, each comprising four perforation openings through the front film layer, the front side gusset part, the rear side gusset part and the rear film layer, so that the film bag is designed to be suspended from a set of carrier pegs;
- wherein the four perforation openings of each continuous suspension opening are provided as slits,
- wherein the front slits of the front perforation openings in the front film layer are longer than the rear slits of the rear perforation openings in the rear film layer;
- wherein the length of the front slits of the perforation openings in the front film layer and in the two front side gusset parts complies with the formula:
- LV≥½×OB
- wherein LV=length of the front slit and OB=radial circumference of the widest part of the bulge next to the end of the carrier peg, and wherein the length of the rear slits of the rear perforation openings in the rear film layer and in the two rear side gusset parts complies with the formula:
- ½×OD≤LA≤½×OB
- wherein LA=length of the rear slit, OD=radial circumference of the carrier peg and OB=radial circumference of the widest part of the bulge next to the end of the carrier peg.
10 more elements
A film bag comprising:
- a front film layer;
- a rear film layer;
- a left side gusset and a right side gusset, each comprising a front side gusset part and a rear side gusset part;
- wherein the front film layer and the rear film layer and the two side gussets are connected to one another at a bottom edge;
- and
- wherein the film bag is provided with a set of continuous suspension openings, each comprising four perforation openings through the front film layer, the front side gusset part, the rear side gusset part and the rear film layer, so that the film bag is designed to be suspended from a set of carrier pegs;
- wherein the four perforation openings of each continuous suspension opening are provided as slits,
- wherein the front slits of the front perforation openings in the front film layer are longer than the rear slits of the rear perforation openings in the rear film layer;
- wherein the length of the rear slit complies with the equation LA=π/2×D±10%;
- wherein the length of the front slit complies with the equation LV=OB/2×F {1|2};
- and
- wherein F {1|2} is defined as 1≤F≤2, D=the (outer) diameter of the carrier peg, and OB=the radial circumference of the widest part of the bulge next to the end of the carrier peg.
9 more elements
Dependencies are inferred from the claim text.