Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • 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
  • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
  • B65D75/008—Standing pouches, i.e. "Standbeutel"
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • 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
  • B65D33/00—Details of, or accessories for, sacks or bags
  • B65D33/16—End- or aperture-closing arrangements or devices
  • B65D33/18—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • 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
  • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
  • B65D75/52—Details
  • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
  • B65D75/5805—Opening or contents-removing devices added or incorporated during package manufacture for tearing a side strip parallel and next to the edge, e.g. by means of a line of weakness
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • 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
  • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
  • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
  • B65D81/343—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated in a conventional oven, e.g. a gas or electric resistance oven
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • 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
  • B65D2205/00—Venting means
  • B65D2205/02—Venting holes

Definitions

• the present invention relates in general to the culinary arts, and more particularly, the present invention relates to a plastic oven bag.
• the present invention is particularly well suited for, but not limited to, food service applications such as food cooking applications.
• Oven bags have been on the market for well over 30 years.
• the known bags have a plain, closed bottom end and sides and an open top end through which food may be placed into the bag. When a consumer uses the bag at home, the open top end is closed after the food has been placed within the bag.
• separate, nylon pull ties are one conventional means for closing the bags. While these oven bags have been substantially unchanged for over 30 years, they have several short comings.
• the present invention is directed to an improved oven bag and a method of making an improved oven bag.
• the present invention includes an oven bag comprising a bag-like body having a closed bottom end, one or more side walls extending upwardly from the closed bottom end, and an open top end.
• the closed bottom end may include a gusset which allows the bag to stand-up on its own thereby making it easier for the consumer to place a food product in the bag.
• the oven bag may include a closure system.
• the closure system may include a flap portion at the top opening of the bag and a high temperature adhesive (e.g., adhesive tape) may be disposed proximate the top opening. The flap portion and adhesive may work in conjunction to close and seal the top opening.
• a high temperature adhesive e.g., adhesive tape
• the flap portion may be located on one side of the top opening and the bag may to sealed closed by folding the flap portion over the top opening and adhering the flap portion to the adhesive located on an opposite side of the top opening.
• the adhesive may be disposed on the flap portion.
• a venting system may also be provided in an upper portion of the oven bag.
• the improved oven bag may also include an easy opening tear-off system provided in an upper portion of the oven bag.
• the venting system may include a series of perforation holes located beneath the closure system. The perforation holes may help with the venting of the oven bag during use and additionally may assist the consumer with easy opening of the bag, by for example tearing-off the portion of the bag above the perforation holes, after the food has been cooked in the bag.
• the bottom of the bag is not limited to the gusset previously mentioned.
• the bottom end of the bag may also have contoured bottom edges.
• the contoured bottom edges may be incorporated into the gusset of the bag.
• each of the contoured edges may include a substantially straight tapered edge.
• the bottom of the bag may also be square or rectangular instead of gusseted.
• the vent holes are preferably located proximate the top of the oven bag when the bag has been closed.
• the vent holes are located proximate the adhesive and the position where the flap portion will be located when it is folded over the top opening, however, the vent holes are also located such that the vents are not covered by the flap portion.
• the perforations / vent holes may be placed approximately 1/8 of an inch to approximately 1 and 1 A inches below the adhesive tape.
• the vent holes may also be created by incorporating weak spots in the bag that will break open when the air in the bag pressurizes during cooking. The weak spots may be created by producing die lines in the film or by scoring the film with a knife or laser. In use, the film would split open at the weak spots creating vent holes when the bag experiences increased pressure during the cooking process.
• high temperature adhesives such as for example high temperature adhesive tapes, as part of the closure system.
• the adhesive tape may be a double sided tissue tape, a double sided medical tape, or a transfer adhesive.
• Closure adhesives having different tackiness may be used, so that the bag either, cannot be re-opened or so that the bag can be re-opened after closing of the bag.
• the closure is not limited to adhesive tapes.
• the closure may also be a high temperature Zip Lock closure or "slider" closure.
• the closure system may also be snap closures.
• FIG. 1 is a perspective view of an exemplary oven bag in accordance with an embodiment of the present invention
• FIG. 2 is a plan view of the oven bag of FIG. 1;
• FIG. 3A is a perspective view of the oven bag of Fig. 1 fully opened to allow food to be placed in to the oven bag;
• FIG. 3B is a top view of the oven bag of FIG. 3 A;
• FIG. 4 is a perspective view of the oven bag portraying the bag being sealed using an exemplary closure system
• FIG. 5 is a perspective view of the oven bag of FIG. 1 with a sealed portion partially removed using an exemplary easy opening tear-off system.
• the present invention is directed to an improved oven bag.
• the oven bag is particularly well suited for use in cooking applications and for use in high temperature cooking applications.
• the oven bag may include a bag-like body having a closed bottom end, one or more side walls extending upwardly from the closed bottom end, and an open top end.
• the closed bottom end may include a stand-up system such as a gusset.
• the oven bag may include a closure system to close and seal the open top end.
• the closure system may include a flap portion at the top opening of the bag and a high temperature adhesive disposed below the flap portion and on a side of the top opening opposite the flap portion. The flap portion may seal the bag by folding over the top opening and adhering the flap to the adhesive strip.
• a series of perforation holes may be formed in an upper portion of the bag.
• the perforation holes are located in the upper portion of the bag proximate the closure system, but is not covered by the closure system when the bag top opening is closed.
• the perforation holes may help with the venting of the oven bag during use and additionally may assist the consumer with easy opening of the bag after the food has been cooked in the bag.
• the upper portion of the bag above the perforation holes may be torn-off creating a new opening for removal of food that has been cooked in the bag.
• the oven bag is preferably suitable for high temperature applications.
• high temperature means the oven bag is preferably made from materials suitable for use in high temperature applications of between about 210 0 F and about 400 0 F.
• the improved high temperature oven bag can withstand temperatures up to about 400 0 F.
• FIGs. 1- 5 depict an exemplary oven bag 100 in accordance with the present invention.
• the oven bag 100 may include a preformed bag-like body.
• the bag body may include a closed bottom end 101, one or more upwardly extending side walls 102 and an open top end 103.
• a closure system is provided to close and seal the open top end 103.
• the closure system may include a flap portion 110 and an adhesive 120.
• the flap portion 110 may extend from one edge of the open top end 103 of the bag.
• the high temperature adhesive 120 such as a high temperature adhesive tape, may be disposed below the top opening of the bag on an opposite side of the top opening. Alternatively, the adhesive 120 may be disposed on the flap portion 110 and the flap 110 and adhesive 120 may fold over the bag opening and adhere to the bag 100.
• a series of perforation holes 130 may also be formed in the bag 100 in an upper portion below the closure system.
• FIG. 1 shows the oven bag 100 in use containing a food 200 within the bag 100 and having the bag 100 disposed on a tray or pan 300. As shown, the oven bag 100 forms a barrier between the food 200 contained within the bag 100 and the tray/pan 300 and/or oven (not shown).
• the various Figures illustrate an exemplary oven bag 100 having various features that improve the performance of the oven bag 100.
• the features include one or more or all of the following features: a stand-up system for facilitating the load of food into the bag; a closure system for easy closure and sealing of the bag opening; a venting system for venting of gases and high pressure from within the bag during cooking; and an easy opening system to facilitate easy opening of the bag once the cooking process is complete so that the cooked food may be removed from the bag.
• the oven bag 100 may be substantially flat when in a folded state. This design and construction facilitates packaging, storage, and shipment of the bag prior to use.
• a gusseted portion 140 may fold within the oven bag 100 proximate the closed bottom end 101.
• the gusseted portion 140 folds out and creates a base 141 that is substantially flat, so that a food product 200 may be placed therein.
• the base 141 may have a rectangular shape.
• FIG. 2 also shows an exemplary closure system having an adhesive strip 120 that is designed to corroborate with flap portion 110 to close and seal the bag 100.
• the adhesive strip 120 may include a non-adhesive covering, e.g., tape, 121 that covers the adhesive 120 during non-use and that may be removed during use just prior to the flap portion 110 being folded over the top opening 103 and onto the adhesive 120.
• the non- adhesive covering 121 may be wider than the adhesive strip 120.
• the non- adhesive covering 121 may be about 1/16 of an inch wider than the adhesive strip 120.
• the increased width of the non-adhesive covering 121 in relation to the adhesive strip 120 may provide for ease in removing the non-adhesive covering 121 from the adhesive strip 120. Further, the non-adhesive covering 121 may be less prone to tear during removal from the adhesive strip 120.
• a suitable adhesive tape/non-adhesive covering combination may be supplied by Berry Plastics Corporation (tape # 7255280).
• the oven bag 100 is not limited to gusseted bottoms.
• the bottom may be square, or rectangular.
• the oven bag may be formed having a contoured bottom edge, thereby preventing food from becoming trapped in the bottom corners of the bag.
• the flap portion 110 may seal the bag by folding over the top opening 103 and adhering to the adhesive tape 120. As shown, the flap portion 110 may be formed on one side of the top opening 103 and the adhesive 120 may be disposed on an opposite side of the top opening 103.
• FIG. 4 shows the adhesive 120 partially exposed by the removal of a non-adhesive covering (e.g., tape) 121 that covers and protects the adhesive
• the adhesive 120 prior to use and also shows the flap portion 110 partially folded over the opening and in contact with the adhesive 120.
• the adhesive 120 may be disposed on the flap portion 110 and the flap 110 and adhesive 120 may fold over the bag opening and adhere to the bag 100.
• the adhesive tape may be a double sided tape such as 3M983 made by 3M or 1731V made by Tyco Adhesives, for example. Additionally, the adhesive tapes may have different tackiness depending on the desires of the consumer. For example, an adhesive tape having a minimal tackiness may allow the consumer to reopen the bag after it has been sealed. On the other hand, an adhesive tape having a greater tackiness may ensure that the bag cannot be reopened. When a consumer wishes to close and seal the bag, the consumer may pull off the outer covering of the tape, thereby exposing an adhesive and allowing the flap portion to securely adhere to the bag.
• the adhesive may be approved by the United States Food and Drug Administration for use in the production of articles intended for use in the processing, handling and packaging of food products.
• a suitable adhesive is supplied by Berry Plastics Corporation (tape # 7255280) or an equivalent thereof.
• the oven bag closure system is not limited to embodiments having a flap portion 110 combined with an adhesive 120.
• the oven bag closure system may include a high temperature Zip Lock closure or "Slider" closure substantially near the top open end of the bag.
• a closure may be made out of a material such as nylon or polyester.
• the closure bag may include high temperature snap fasteners substantially near the top open end of the bag. Such snap fasteners may be welded on to a lip of the bag.
• the snaps may be made, using well known techniques in the art, such as injection molding the snaps out of nylon or polyester, for example.
• perforation holes 130 may be made in the bag 100 for automatic venting of the bag during cooking.
• the perforation holes 130 include a series of perforation holes 130 that extend along the length of the bag just below a closed portion 150 of the bag.
• the perforations holes 130 may be located just below the adhesive tape 120 - as depicted in the Figures.
• perforation holes may have a 3/16 of an inch diameter.
• the perforations 130 may be about one eighth of an inch to about one and one half inch below the adhesive tape 120.
• the placement of the perforations 130 is such that the perforations 130 are not covered when the top opening 103 is closed. Placement of the perforations 130 a safe distance below the adhesive 120 provides a safeguard from accidental sealing off the perforations 130.
• the perforation holes 130 may include slits having a length of about one eighth inch to about one quarter inch.
• the perforation holes 130 may include about one eighth inch to about one quarter inch diameter holes.
• the perforation holes 130 are on both side walls 102 of the bag 100. This embodiment ensures that even if the perforation holes 130 on one side wall 130 are covered by the flap 110, the perforation holes 130 on the other side 130 will remain unobstructed.
• the perforations 130 may be advantageous for several reasons.
• the perforations 130 may serve as vents during cooking. By having vents built into the oven bags 100, the bag 100 will automatically vent during cooking and consumers will no longer be required to form vent holes themselves with a sharp object, such as a knife or fork.
• the perforations 130 may act as an easy opening system (i.e., a tear off feature) for the bag 100. As shown in FIG. 5, after the bag 100 has been sealed, the top of the bag 160 may be ripped off allowing the consumer to gain access to the food product 200 inside the bag 100. When the bag 100 has been used in an oven, the bag may become moist and cooked making it even easier for the consumer to tear off the top portion of the bag 160.
• the oven bag material may be suitable for continuous service under various conditions and may have the following characteristics: suitable for temperature conditions ranging from about 21O 0 F to about 400°F; has a good thermal heat transfer rate; has a tensile strength capable of withstanding approximately 13,000 psi without orientation; has a tear strength capable of holding up to about 50 grams/liter; has a tabor strength capable of sustaining about 1000 cycles tested with a load of about 500 grams; has a chemical resistance to most chemicals, such as mineral acids, phenols and concentrated formic acid; has a bacterial and mold resistance making it rot proof and resistant to molds and impermeable to micro-organisms; acts as an odor barrier to most odors; has a grease and oil resistance having an oil-barrier properties effective against animal, vegetable, and mineral oils and fats; allows some moisture-vapor transmission at raised temperatures; is gas impermeable which makes the bag well suited for packaging under nitrogen, carbon dioxide, or vacuum, and is resistant to oxygen permeation which reduces fogging in frozen
• the oven bag may be made from a durable and high temperature plastic material, nylon film, such as a nylon resin, polyester film, polyester elastomer film, or a combination thereof.
• the bag may be made from a high temperature nylon or polyester, such as a material from the polyamide family including nylon 3, 4, 6, 9, 11, 12, and triple nylons.
• An exemplary nylon resin material that is suitable for use with the present invention may include MONOL YNTM material manufactured by M&Q Plastic Products.
• the thickness of the liner may range between, for example, 0.8 mils and 1.0 mils.
• the oven bag material provides oil and grease resistance and is manufactured from resins that meet all requirements of the United Sates Food and Drug Administration regulations 21 CFR 177.1500 (a)(l)(6), (b)(l)(6.1) and 21 CFR 178.2010 to produce articles intended for use in the processing, handling and packaging of food products.
• embodiments of the liner material may have the following properties as listed in Table 1.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Life Sciences & Earth Sciences (AREA)
• Food Science & Technology (AREA)
• Package Specialized In Special Use (AREA)
• Bag Frames (AREA)
• Packages (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=39826977

Family Applications (1)

Country Status (5)

Families Citing this family (10)

Citations (5)

Family Cites Families (12)

• 2008
  • 2008-04-04 EP EP08745123A patent/EP2134622A4/de not_active Withdrawn
  • 2008-04-04 MX MX2009010686A patent/MX2009010686A/es not_active Application Discontinuation
  • 2008-04-04 US US12/098,174 patent/US20080247683A1/en not_active Abandoned
  • 2008-04-04 CA CA002680083A patent/CA2680083A1/en not_active Abandoned
  • 2008-04-04 WO PCT/US2008/059423 patent/WO2008124600A1/en active Application Filing

Patent Citations (5)

Non-Patent Citations (1)

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