Method of designing a standup bag

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.