# US 2002/0141663 A1 · Method of designing a standup bag

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- Number: US 2002/0141663 A1
- Document ID: US20020141663A1
- Status: Published application
- Kind: A1
- Application number: 10/029,513
- Filed: 2001-12-20
- Published: 2002-10-03
- Earliest claimed: 2001-01-12
- Assignees: Scholle Corporation
- Inventors: Simon P. Edwards; Benjamin A. Gianneschi; Nancy Lu; Joe Hsu
- Web page: https://patentgrep.com/patent/US20020141663A1

## CPC

- B65D 75/5877: {connected to a planar surface of the package wall}
- B31B 70/00: Making flexible containers, e.g. envelopes or bags
- B65D 31/005: {by folding a single blank to U-shape to form the base of the bag and opposite sides of the body-portion, the remaining sides being formed by extensions of one or more of these opposite sides (cartons B65D5/18)}
- B65D 33/06: Handles {(forming part of the closing arrangement B65D33/16)}
- B65D 33/065: {Integral handles (B65D33/08 takes precedence)}
- B65D 33/08: Hand holes
- B65D 33/10: formed of similar material to that used for the bag
- B65D 33/16: End- or aperture-closing arrangements or devices (valves of valve bags {B65D31/14}; closures of filled bags B65D77/10)
- B65D 75/008: {Standing pouches, i.e. "Standbeutel"}
- B65D 75/527: {Tear-lines for separating a package into individual packages (B65D1/30, B65D21/0206, B65D75/34 take precedence)}
- B65D 75/563: {Integral handles or suspension means (B65D75/566 takes precedence)}
- B65D 75/58: Opening or contents-removing devices added or incorporated during package manufacture {(B65D75/36, B65D85/1027 take precedence)}
- B29C 65/04: Dielectric heating, e.g. high-frequency welding {, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC}
- B29C 65/08: using ultrasonic vibrations {(non-plastics element to plastics elements B29C65/645)}
- B29C 65/18: using heated tools
- B29C 65/38: Impulse heating
- B29C 66/112: {Single lapped joints}
- B29C 66/131: {Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area}
- B29C 66/30223: {said melt initiators being rib-like}
- B29C 66/47421: {said spouts comprising flanges}
- B29C 66/53247: {said spouts comprising flanges}
- B29L 2031/7166: {Cartons of the fruit juice or milk type, i.e. containers of polygonal cross sections formed by folding blanks into a tubular body with end-closing or contents-supporting elements, e.g. gable type containers (in general B65D5/06)}
- B31B 70/008: {Stiffening or reinforcing (B31B70/876 takes precedence)}
- B31B 70/844: {Applying rigid valves, spouts, or filling tubes}
- B31B 70/86: Forming integral handles or mounting separate handles
- B31B 2155/00: Flexible containers made from webs
- B31B 2155/002: {by joining superimposed webs, e.g. with separate bottom webs}
- B31B 2160/10: rectangular and flat, i.e. without structural provision for thickness of contents
- Y10S 493/934: Parallelepiped or tetrahedron shape
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B31B: MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER (making wound articles, e.g. wound tubes, B31C; combined making and filling B65B)
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

A standup bags made of a flexible material and methods of producing these standup bags. In particular, the standup bags have at least one substantially flat surface which is free of seams and folds. When the bag is filled with a flowable substance, the pressure exerted by the fluid upon the flat surfaces allows the bag to be self-standing. Additionally, the standup includes at least one contour structure that defines the geometry of the bag and also contributes to the standup bag's ability to be self-standing when even partially filled with a flowable substance.

## Claims

### Claim 1

A standup bag, comprising:
an enclosure made from at least one sheet of material,
the enclosure being defined by at least one wall, the walls being substantially rigid when the enclosure is filled with a flowable substance; and
at least one contour structure, wherein the contour structure defines a geometric shape of the enclosure.

### Claim 2 (depends on 1)

The standup bag of claim 1, further comprising:
wherein the walls include a front wall, a rear wall, a first side wall, a second side wall, a top wall, and a bottom wall;
wherein the contour structure includes:
a first upper seal extending from a first upper corner of the first side wall,
a second upper seal extending from a second upper corner of the first side wall,
the first upper seal and the second upper seal joining to form a first V-shaped seal,
a first lower seal extending from a first lower corner of the first side wall,
a second lower seal extending from a second lower corner of the first side wall,
the first lower seal and the second lower seal joining to form a second V-shaped seal,
a longitudinal seal joining the first V-shaped seal to the second V-shaped seal; and
at least one fitment attached to at least one sheet and out through which the flowable substance may enter or be withdrawn from the enclosure.

### Claim 3 (depends on 2)

The standup bag of claim 2, further comprising:
a second contour structure, wherein the contour structure includes:
a first upper seal extending from a first upper corner of the second side wall;
a second upper seal extending from a second upper corner of the second side wall, the first upper seal and the second upper seal joining to form a first V-shaped seal;
first lower seal extending from a first lower corner of the second side wall;
second lower seal extending from a second lower corner of the second side wall, the first lower seal and the second lower seal joining to form a second V-shaped seal; and
a longitudinal seal joining the first V-shaped seal of the second side wall to the second V-shaped seal of the second side wall.

### Claim 4 (depends on 1)

The standup bag of claim 1, wherein thewall is substantially flat to form a stable base to allow the rigid bag to stand stable on a level surface, and wherein the wall directly contacts the level surface when standing on the level surface.

### Claim 5 (depends on 1)

The standup bag of claim 1, wherein at least one wall has a polygonal shape, wherein the polygonal shape is selected from the group consisting of a square, a rectangle, a parallelogram, and a trapezoid.

### Claim 6 (depends on 5)

The standup bag of claim 5, wherein at least two opposing walls have the same polygonal shape.

### Claim 7 (depends on 6)

The standup bag of claim 6, wherein at least four opposing walls have the same polygonal shape.

### Claim 8 (depends on 1)

The standup bag of claim 1, further comprising at least one handle.

### Claim 9 (depends on 8)

The standup bag of claim 8, wherein the standup bag includes two handles.

### Claim 10 (depends on 8)

The standup bag of claim 8 wherein the handle is attached to a seal.

### Claim 11 (depends on 8)

The standup bag of claim 8 wherein the handle is reinforced.

### Claim 12 (depends on 8)

The standup bag of claim 8 wherein the handle is a loop.

### Claim 13 (depends on 8)

The standup bag of claim 8 wherein the handle is planar.

### Claim 14 (depends on 13)

The standup bag of claim 13 wherein the handle includes a recess.

### Claim 15 (depends on 13)

The standup bag of claim 13 wherein the handle includes at least one opening.

### Claim 16 (depends on 1)

The standup bag of claim 1 further including at least one panel attached to the outer surface of the at least one wall.

### Claim 17 (depends on 16)

The standup bag of claim 16 wherein the panel includes at least one grasping member.

### Claim 18 (depends on 3)

The standup bag of claim 3 further including at least one reinforcing member disposed at the junctions of the first and second upper seals and the longitudinal seal of the first side wall, the first and second lower seals and the longitudinal seal of the first side wall, the first and second upper seals and the longitudinal seal of the second side wall, the first and second lower seals and the longitudinal seal of the second side wall.

### Claim 19 (depends on 1)

The standup bag of claim 1 further including at least one ply of material.

### Claim 20 (depends on 1)

The standup bag of claim 1 wherein the sheet of material comprises at a plurality of layers laminated together.

### Claim 21 (depends on 1)

The standup bag of claim 1 wherein the sheet of material comprises a plurality of layers joined together along the perimeter of the layers.

### Claim 22

A standup bag comprising:
at least one wall made from a flexible material, a bottom member, and a top member, wherein the at least one wall is disposed between the bottom member and the top member to define an enclosure;
at least one contour structure included on the walls;
at least one fitment in communication with the enclosure; and
the bag being self-standing when filled with a flowable substance.

### Claim 23 (depends on 22)

The standup bag of claim 22 wherein the enclosure is substantially brick-shaped.

### Claim 24 (depends on 22)

The standup bag of claim 22 wherein the walls have shapes selected from the group consisting of a square, a rectangle, a triangle, and a trapezoid.

### Claim 25 (depends on 24)

The standup bag of claim 24, wherein at least two walls have the same shape.

### Claim 26 (depends on 24)

The standup bag of claim 24, wherein four walls have the same shape.

### Claim 27 (depends on 24)

The standup bag of claim 24, wherein all walls have the same shape.

### Claim 28 (depends on 22)

The standup bag of claim 22, further comprising at least one grasping member.

### Claim 29 (depends on 22)

The standup bag of claim 22 wherein the standup bag includes at least one ply of material.

### Claim 30 (depends on 22)

The standup bag of claim 22 wherein the sheet of material comprises at a plurality of layers laminated together.

### Claim 31 (depends on 22)

The standup bag of claim 22 wherein the sheet of material comprises a plurality of layers joined together along the perimeter of the layers.

### Claim 32 (depends on 22)

The standup bag of claim 22 further including at least one panel attached to the outer surface of the at least one wall.

### Claim 33 (depends on 32)

The standup bag of claim 32 wherein the panel includes at least one grasping member.

### Claim 34 (depends on 22)

The standup bag of claim 22 further including at least one reinforcing member disposed at the junctions of the first and second upper seals and the longitudinal seal of the first side wall, the first and second lower seals and the longitudinal seal of the first side wall, the first and second upper seals and the longitudinal seal of the second side wall, the first and second lower seals and the longitudinal seal of the second side wall.

### Claim 35 (depends on 22)

The standup bag of claim 22 wherein the enclosure is formed from at least one layer of material.

### Claim 36 (depends on 22)

The standup bag of claim 22 wherein the at least one fitment is located on the walls of the enclosure.

### Claim 37 (depends on 22)

The standup bag of claim 22 wherein the at least one fitment is located on a seal.

### Claim 38 (depends on 22)

The standup bag of claim 22 further comprising at least one handle attached to the enclosure.

### Claim 39 (depends on 38)

The standup bag of claim 38 wherein the handle is attached to a seal.

### Claim 40 (depends on 38)

The standup bag of claim 38 wherein the handle is reinforced.

### Claim 41 (depends on 38)

The standup bag of claim 38 wherein the handle is a loop.

### Claim 42 (depends on 38)

The standup bag of claim 38 wherein the handle is planar.

### Claim 43 (depends on 42)

The standup bag of claim 42 wherein the handle includes a recess.

### Claim 44 (depends on 42)

The standup bag of claim 42 wherein the handle includes at least one opening.

### Claim 45 (depends on 22)

The standup bag of claim 22 further comprising at least one panel attached to the outer surface of the flat walls.

### Claim 46 (depends on 45)

The standup of bag of claim 45 wherein the at least one panel includes at least one grasping member.

### Claim 47

A web of standup bags, the web comprising:
at least two standup bags, wherein the standup bags include at least one substantially flat wall and a plurality of walls defining an enclosure;
at least one contour structure provided on the walls of the enclosure, wherein the standup bags are joined by the contour structures.

### Claim 48 (depends on 47)

The web of claim 47, wherein the web further includes at least one stay member joining the at least two standup bags.

### Claim 49 (depends on 47)

The web of claim 47 wherein perforations are disposed between the adjacent contour structures.

### Claim 50

A web of standup bags, the web comprising:
a plurality of standup bags, wherein the standup bags includes a substantially flat bottom wall, a plurality of walls defining an enclosure;
at least one contour structure provided on the walls of the enclosure; and
at least one stay member, wherein the plurality of standup bags are joined by the contour structures and the stay members.

### Claim 51 (depends on 50)

The web of claim 50 wherein perforations are disposed between adjacent contour structures.

### Claim 52

A web of standup bags, the web comprising:
a plurality of standup bags, wherein the standup bags comprises a plurality of walls and the walls include at least one substantially flat wall being free of seams, and at least one contour structure; and
adjacent standup bags are joined together by a heat seal.

### Claim 53 (depends on 52)

The web of claim 52, wherein the heat seal is a longitudinal heat seal.

### Claim 54 (depends on 52)

The web of claim 52, wherein the heat seal is a head heat seal.

### Claim 55 (depends on 52)

The web of claim 52, wherein the heat seal is a contour structure.

### Claim 56

A method of storing flowable substance, comprising:
providing an enclosure having a first configuration and a second configuration, wherein the enclosure in the first configuration is substantially flat and the enclosure in the second configuration is self-standing; and
introducing a flowable substance through a fitment into the enclosure having the first configuration, wherein the flowable substance causes the enclosure to achieve the second configuration.

### Claim 57

A method of making a standup bag comprising:
providing a sheet of material having at least four edges;
securing the first edge of the material to the second edge of the material to form a first seal;
creating a first fold substantially parallel to the first edge, wherein a distance between the first fold and the first edge defines a first surface of the bag;
creating a second fold substantially parallel to the first fold, wherein the second fold is at the opposite end of the first fold;
forming a second seal extending from the first fold to the second fold; and
forming a third seal extending from the first fold to the second fold, wherein the third seal is opposite the second seal.

### Claim 58 (depends on 57)

The method of claim 57 wherein the first seal, second seal, and third seal are substantially U-shaped seals.

### Claim 59 (depends on 57)

The method of claim 57 further comprising attaching at least one fitment to the sheet of material prior securing the first edge to the second edge.

### Claim 60 (depends on 57)

The method of claim 57 further comprising positioning at least one fitment between the edges of the first seal, the second seal, or the third seal.

### Claim 61 (depends on 57)

The method of claim 57 further comprising forming at least one integrated handle on the standup bag.

### Claim 62 (depends on 57)

The method of claim 57, further comprising attaching at least one handle to the standup bag.

### Claim 63 (depends on 57)

The method of claim 57 further comprising inserting reinforcing members along the edges between the first fold and the second fold prior to forming the second and third seals.

### Claim 64

A method of making a standup bag comprising:
positioning a first sheet of material on a second sheet of material;
securing the first sheet to the second sheet by forming a first seal and a second seal, wherein the second seal is opposite the first seal;
creating a first fold substantially parallel to the first edge, wherein a distance between the first fold and the first edge defines a first surface of the bag;
creating a second fold substantially parallel to the second edge, wherein a distance between the second fold and the second edge defines a second surface of the bag;
forming a second seal extending from the first fold to the second fold;
forming a third seal extending from the first fold to the second fold, wherein the second seal is opposite the third seal.

### Claim 65 (depends on 64)

The method of claim 64 wherein the first seal, second seal, and third seal are substantially U-shaped seals.

### Claim 66 (depends on 64)

The method of claim 64 further comprising attaching a fitment to the sheet of material prior securing the first edge to the second edge.

### Claim 67 (depends on 64)

The method of claim 64 further comprising inserting reinforcing members along the edges between the first fold and the second fold prior to forming the second and third seals.

### Claim 68 (depends on 64)

The method of claim 64 further comprising placing a fitment between the edges of the first seal, the second seal, or the third seal.

### Claim 69 (depends on 64)

The method of claim 64 further comprising forming at least one integrated handle on the standup bag.

### Claim 70 (depends on 64)

The method of claim 64, further comprising attaching at least one handle to the standup bag.

### Claim 71

A method of designing a standup bag, the method comprising:
(a) determining a geometry of the standup bag, wherein the standup bag comprises at least four walls, a top wall, and a bottom wall, wherein the at least four walls are disposed between the top wall and the bottom wall to define an enclosure, and the enclosure includes at least one contour structure;
(b) selecting an angle (C), wherein the angle (C) comprises a first corner of a first wall;
(c) selecting an angle (D), wherein the angle (D) comprises a second corner of a second wall;
(d) selecting an angle (G), wherein the angle (G) comprises a third corner of a third wall;
(e) calculating a third angle (F), wherein F=((G+D−C)/2);
(f) calculating a forth angle (H), wherein H=((G+C−D)/2);
wherein the third and forth angles comprise a third corner of a third wall, and the first, second, and third corners form a first corner of the standup bag; and
(g) applying steps (a)-(f) to the remaining corners of the standup bag.

### Claim 72 (depends on 71)

The method of claim 71 wherein the first wall is a front wall or a back wall of the standup bag.

### Claim 73 (depends on 72)

The method of claim 72 wherein the second wall is a top wall or a bottom wall.

### Claim 74

A method of designing a standup bag, the method comprising:
(a) determining a geometry of the standup bag having at least one contour structure, wherein the standup bag comprises a top wall, a bottom wall, a front wall, a bottom wall, a first side wall, and a second side wall;
(b) selecting an angle (C), wherein the angle (C) comprises a first corner of a front wall;
(c) selecting an angle (D), wherein the angle (D) comprises a first corner of a bottom wall;
(d) selecting an angle (G), wherein the angle (G) comprises a first corner of a first side wall;
(e) calculating a third angle (F), wherein F=((G+D−C)/2);
(f) calculating a forth angle (H), wherein H=((G+C−D)/2);
wherein the third and forth angles comprise the first corner of the first side wall, and the first corner of the front wall, the first corner of the bottom wall, and the first corner of the first side wall form a first corner of the standup bag; and
(g) applying steps (a)-(f) to the remaining corners of the standup bag.

### Claim 75

A method of forming a standup bag, the method comprising:
providing at least one sheet of material;
defining a geometry of the standup bag, wherein the standup bag includes at least one substantially flat surface and at least one contour structure; and
determining the shape of the contour member by predetermined algorithm.

### Claim 76

A method of making a web of standup bags, the method comprising:
providing a first roll and a second roll of material;
unwinding a portion of the first roll;
punching a hole in the unwound portion of the first roll;
fitting a fitment through the hole;
unwinding and placing a portion of the second roll atop the unwound portion of the first roll;
removing material from the corners of the first unwound portion and the second unwound portion;
sealing the first unwound portion and the second unwound portion by a first horizontal seal and a second horizontal seal;
folding the first and second unwound portions to form substantially flat surfaces; and
sealing the longitudinal surfaces of first and second unwound portions with at least two substantially U-shaped seals to form the web of standup bags.

### Claim 77 (depends on 76)

The method of claim 76 further comprising:
folding the first and second unwound portions to form a substantially flat surface prior to sealing the first and second unwound portions with the at least two substantially U-shaped seals.

### Claim 78 (depends on 77)

The method of claim 77 further comprising:
inserting reinforcing members along the longitudinal surfaces prior to sealing the first and second unwound portions with the at least two U-shaped seals.

### Claim 79 (depends on 76)

The method of claim 76 further comprising:
perforating the substantially U-shaped seal disposed between adjacent standup bags.

### Claim 80

A fitment attached to a flexible bag, the fitment comprising:
a cylindrical body having a lumen, a first end, and a second end;
a cylindrical carrier attached to the first end of the cylindrical body, wherein the cylindrical carrier is detachable from the cylindrical body; and
a closure capable of sealing the lumen of the cylindrical body.

### Claim 81 (depends on 80)

The fitment of claim 80 further comprising:
a stopping member disposed within the lumen of the cylindrical body.

### Claim 82 (depends on 80)

The fitment of claim 80 further including an annular groove disposed between the first end of the cylindrical body and the cylindrical carrier, wherein the carrier is detachable from the cylindrical body at the annular groove.

### Claim 83 (depends on 80)

The fitment of claim 80 further comprising:
an annular recess disposed about the first end of the cylindrical body; and
a bulbous end disposed on the second end of the cylindrical carrier, wherein the bulbous end is adapted to engage and disengage the annular recess.

### Claim 84 (depends on 83)

The fitment of claim 83 further comprising:
a stopping member disposed within the lumen of the cylindrical body.

### Claim 85

A fitment attached to a flexible bag, the fitment comprising:
a cylindrical body having a lumen, a first end, and a second end;
a cylindrical carrier attached to the first end of the cylindrical body;
an annular groove disposed between the first end of the cylindrical body and the cylindrical carrier, wherein the carrier is detachable from the cylindrical body at the annular groove; and
a closure capable of sealing the lumen of the cylindrical body.

### Claim 86 (depends on 85)

The fitment of claim 85 further comprising:
a stopping member located within the lumen of the cylindrical body.

### Claim 87

A fitment attached to a flexible bag, the fitment comprising:
a cylindrical body having a lumen, a first end, a second end, and an annular recess disposed about the first end of the cylindrical body;
a cylindrical carrier having a first end and a second end, wherein the second end of the cylindrical carrier is adapted to engage and disengage the annular recess; and
a closure capable of sealing the lumen of the cylindrical body.

### Claim 88 (depends on 87)

The fitment of claim 87 further comprising:
a stopping member located within the lumen of the cylindrical body.

### Claim 89

A fitment attached to a flexible bag, the fitment comprising:
a cylindrical housing having a first end, a second end, and a lumen therebetween;
a cylindrical sleeve having a lumen, the sleeve slidably engaging the cylindrical body,
the cylindrical sleeve having a first position and a second position wherein in the first position the sleeve protrudes from the first end of the cylindrical body, and in the second position the sleeve engages the first end of the cylindrical body; and
a closure slidably engaging or disengaging the lumen of the sleeve.

### Claim 90

A fitment attached to a flexible bag, the fitment comprising:
a cylindrical ring having a lumen disposed between a first end and a second end, and at least one annular groove disposed on an inner surface of the lumen;
a cylindrical sleeve, wherein the cylindrical sleeve is slidably engages the lumen of the cylindrical ring, the cylindrical sleeve comprising:
a lumen disposed between a first end and a second end;
at least one port arranged about the circumference of the cylindrical sleeve;
a base member positioned within the lumen below the port; and
at least one annular ridge positioned on an outer surface of the sleeve, wherein the annular ridge is adapted to engage the annular groove of the cylindrical ring; and
the cylindrical sleeve having a first position and a second position,
in the first position, an interior of the bag is sealed when the annular ridge engages the annular groove, and
in the second position, the flange of the sleeve engages the first end of the cylindrical ring and the at least one port is in communication with an interior of the standup bag.

### Claim 91

A fitment attached to a flexible bag, the fitment comprising:
a cylindrical ring having a lumen disposed between a first end and a second end, and at least one sleeve cooperating means disposed on an inner surface of the lumen;
a cylindrical sleeve, wherein the cylindrical sleeve is slidably disposed in the lumen of the cylindrical ring, the cylindrical sleeve comprising:
a lumen disposed between a first end and a second end;
at least one port disposed arranged about the circumference of the cylindrical sleeve;
a base member positioned within the lumen below the at least one port; and
at least one ring cooperating means positioned on an outer surface of the sleeve, wherein the ring cooperating means is adapted to engage the sleeve cooperating means of the cylindrical ring; and
the cylindrical sleeve having a first position and a second position, wherein
in the first position, an interior of the bag is sealed when the ring cooperating means engages the sleeve cooperating means, and
in the second position, the ring cooperating means is disengaged from the sleeve cooperating means and the at least one port is in communication with the interior of the standup bag.

### Claim 92

A standup bag formed from a flexible material, the standup bag comprising:
an enclosure, wherein the enclosure includes a plurality of substantially flat walls;
at least one fitment attached to the enclosure, wherein a flowable substance may enter or be withdrawn from the enclosure;
a contour structure provided on at least two walls of the enclosure, wherein the contour structure defines the shape of the enclosure when the enclosure is filled with the flowable substance;
at least one of the plurality of flat walls being free of seams, wherein the flat wall forms a stable base to allow the enclosure filled with the flowable substance to stand; and
at least one grasping member attached to the standup bag, wherein the grasping member extends away from the walls of the standup bag.

### Claim 93 (depends on 92)

The standup bag of claim 92 wherein the grasping member is substantially planar and is attached to a seal.

### Claim 94 (depends on 92)

The standup bag of claim 92 wherein the grasping member includes an opening, wherein a portion of the opening is reinforced.

### Claim 95 (depends on 92)

The standup bag of claim 92 wherein the grasping member is substantially planar and is attached to a seal, and the grasping member includes a partial cutout portion, wherein the cutout portion is folded to form a reinforcement member on the grasping member.

### Claim 96 (depends on 92)

The standup bag of claim 92 wherein the grasping member is a looped member extending from at least one seal.

### Claim 97 (depends on 93)

The standup bag of claim 93 wherein the grasping member includes at least one opening adapted to be grasped.

### Claim 98 (depends on 92)

The standup bag of claim 92 wherein the grasping member is substantially planar and is attached to a seal, and the grasping member includes a recess.

### Claim 99

A standup bag formed from a flexible material, the standup bag comprising:
an enclosure, wherein the enclosure includes a plurality of substantially flat walls;
a contour structure provided on at least two walls of the enclosure, wherein the contour structure defines the geometric shape of the enclosure when the enclosure is filled with the flowable substance;
at least one of the plurality of substantially flat walls being free of seams, wherein the substantially flat wall forms a stable base to allow the enclosure filled with the flowable substance to be self-standing; and
at least one grasping member attached to the standup bag, wherein the grasping member extends away from the substantially flat walls.

### Claim 100 (depends on 99)

The standup bag of claim 99 further comprising:
at least one fitment attached to the enclosure, wherein a flowable substance may enter or be withdrawn from the enclosure through the fitment.

### Claim 101

A handle for a standup bag formed from a flexible material, the handle comprising:
a substantially planar member having a generally rectangular shape, a first edge and a second edge, wherein the first edge is attached to the standup bag.

### Claim 102 (depends on 101)

The handle of claim 101 wherein the second edge is attached to the standup bag to form a loop.

### Claim 103 (depends on 101)

The handle of claim 101 wherein the substantially planar member includes a pocket having an opening at one end, wherein the pocket is defined by a fold located between the first edge and the second edge and two seals substantially perpendicular to the edges.

### Claim 104 (depends on 101)

The handle of claim 101 wherein the planar member includes a third and forth edge, and the third and forth edge are attached to the standup bag, wherein a pocket is defined by the planar member and at least one wall of the standup bag.

### Claim 105

A standup bag formed from a flexible material, the standup bag comprising:
an enclosure, wherein the enclosure includes a plurality of substantially flat walls;
at least one fitment attached to the enclosure, wherein a flowable substance may enter or be withdrawn from the enclosure;
a contour structure provided on at least two walls of the enclosure, wherein the contour structure defines the shape of the enclosure when the enclosure is filled with the flowable substance;
at least one of the plurality of flat walls being free of seams, wherein the substantially flat wall forms a stable base to allow the enclosure filled with the flowable substance to be self-standing; and
at least one grasping member integral with the enclosure, the at least one grasping member includes a first edge and a second edge, wherein the first edge and the second edge are attached to the contour structures.

### Claim 106

A method of designing a standup bag having a first and second configuration wherein the standup bag in the first configuration is substantially flat and the standup bag is self-standing when filled with a flowable substance in the second configuration, the method comprising:
selecting a width, a height, and a depth of the standup bag; and
determining a geometry of the standup bag by a predetermined algorithm.

### Claim 107 (depends on 106)

The method of claim 106 wherein the predetermined algorithm comprises:
(a) selecting an angle (C), wherein the angle (C) comprises a first corner of a first wall of the standup bag;
(b) selecting an angle (D), wherein the angle (D) comprises a second corner of a second wall of the standup bag;
(c) selecting an angle (G), wherein the angle (G) comprises a third corner of a third wall of the standup bag;
(d) calculating a third angle (F), wherein F=((G+D−C)/2);
(e) calculating a forth angle (H), wherein H=((G+C−D)/2);
wherein the third and forth angles comprise a third corner of a third wall, and the first, second, and third corners form a first corner of the standup bag; and
(f) applying steps (a)-(e) to the remaining corners of the standup bag.