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BR-102020016297-B1 - Lining bag for a container and method for creating and attaching a lining bag to a container.

BR102020016297B1BR 102020016297 B1BR102020016297 B1BR 102020016297B1BR-102020016297-B1

Abstract

LINING BAG FOR A CONTAINER AND METHOD FOR CREATING AND ATTACHING A LINING BAG TO A CONTAINER. This is a lining bag for, for example, an intermediate flexible bulk container (FIBC) comprising a body portion formed by at least two sheets. The body portion has a first end and a second end that define a cavity between them. The first end has an opening to receive a product. The lining bag also includes at least one seal (e.g., a vertical seal) that joins the two sheets. The lining bag further includes at least one polymer flange attached to the two sheets and extending beyond the vertical seal to provide at least one attachment point for securing the lining bag to the container.

Inventors

  • PAUL A. WEISSBROD

Assignees

  • LINCOLN GLOBAL, INC

Dates

Publication Date
20260310
Application Date
20200811
Priority Date
20200623

Claims (16)

  1. 1. LINING BAG (10) FOR A CONTAINER, comprising: a body portion formed by at least two sheets (24, 26), the body portion having a first end (12) and a second end (14) that define a cavity (18) between them, the first end (12) having an opening (16) to receive a product; at least one vertical seal (22) that joins the at least two sheets (24, 26); and at least one polymer flange (20) attached to at least two sheets and extending outward from at least one vertical seal (22) to provide at least one attachment point for securing the liner bag (10) to the container, characterized in that the at least one polymer flange (20) is integral to at least one sheet of the at least two sheets (24, 26), wherein each of the at least two sheets (24, 26) is a sheet of metal laminate comprising a metal sheet element (140) and a polymer element (150), and wherein a portion of the polymer element (150) extends beyond an edge of the metal sheet element (140) to create a polymer flange of the at least one polymer flange (20).
  2. 2. LINING POCKET (10), according to claim 1, characterized in that at least one polymer flange (20) is fastened between at least two sheets (24, 26).
  3. 3. LINING POCKET (10), according to claim 1, characterized in that at least one polymer flange (20) is attached above or below at least two sheets (24, 26).
  4. 4. LINING POCKET (10), according to claim 1, characterized by at least one vertical seal (22) extending from the first end (12) to the second end (14) to join the at least two sheets (24, 26).
  5. 5. LINING POCKET (10), according to claim 1, characterized in that the second end (14) is closed.
  6. 6. LINING POUCH (10), according to claim 1, characterized by including a second closed end (14), wherein at least the second closed end (14) of the lining pouch (10) is rectangular in shape.
  7. 7. LINING BAG (10), according to claim 1, characterized in that the lining bag (10) is configured to fit into an interior of the container to line the container.
  8. 8. LINING POUCH (10), according to claim 1, characterized by including a second closed end (14), wherein at least the second closed end (14) of the lining pouch (10) is circular in shape.
  9. 9. LINING POUCH (10), according to claim 1, characterized by including a second closed end (14), wherein at least the second closed end (14) of the lining pouch (10) is polygonal in shape.
  10. 10. LINING BAG (10), according to claim 1, characterized in that at least one polymer flange (20) is produced from polyethylene or polypropylene material configured to resist tearing when attached to the container.
  11. 11. LINING POUCH (10), according to claim 1, characterized in that at least two sheets include four sheets (24, 26, 28, 30), and wherein two sheets of the four sheets are each configured to be folded along a center line and attached to two other sheets of the four sheets (24, 26, 28, 30) to create a retractable lining pouch (10).
  12. 12. LINING POCKET (10), according to claim 1, characterized in that at least two sheets (24, 26) and at least one polymer flange (20) are configured to be joined by at least one of an adhesive or heat seal.
  13. 13. LINING POUCH (10), according to claim 1, characterized in that the polymer element (150) includes a coating over the metal foil element (140).
  14. 14. METHOD FOR CREATING AND ATTACHING A LINING POCKET, as defined in claim 1, TO A CONTAINER, characterized by comprising: joining at least two sheets (24, 26) of metal laminate to form a lining pocket (10) for a container, wherein each of the at least two sheets (24, 26) of metal laminate comprises a metal sheet element (140) and a polymer element (150), wherein the at least two sheets (24, 26) of metal laminate have at least one polymer flange (20) extending outward from the at least two sheets (24, 26) of metal laminate, wherein the at least one polymer flange (20) is integral to at least one sheet of the at least two sheets (24, 26); forming the at least one polymer flange (20) by extending a portion of the polymer element (150) beyond an edge of the metal sheet element. (140); stitch the lining bag (10) into the container through at least one polymer flange (20).
  15. 15. METHOD, according to claim 14, characterized by further comprising coating the polymer element (150) onto the metal foil element (140).
  16. 16. METHOD, according to claim 14, characterized by further comprising joining at least one polymer flange (20) to at least two sheets (24, 26) of metal laminate by means of at least one of thermal sealing or application of an adhesive.

Description

CROSS-REFERENCE TO RELATED ORDERS [001] This application refers to, and claims priority to, U.S. Provisional Patent Application Serial No. 62/888,170, entitled BULK FLUX BAG HYBRID LINER BAG, filed August 16, 2019, which is incorporated herein by reference in its entirety, and U.S. Provisional Patent Application Serial No. 63/000,542, entitled BULK FLUX BAG HYBRID LINER BAG, filed March 27, 2020, which is incorporated herein by reference in its entirety, and U.S. Non-Provisional Patent Application Serial No. 16/909,108, entitled BULK FLUX BAG HYBRID LINER BAG, filed June 23, 2020, which is incorporated herein by reference in its entirety. FIELD OF TECHNIQUE [002] The embodiments of the present invention relate to bulk flux bags and bulk flux bag liners for welding consumables. BACKGROUND [003] Standard polyethylene or polypropylene film liner bags for an intermediate flexible bulk container (i.e., a “FIBC”) are often manufactured with flanges extending along the vertical heat-seal junctions for incorporation into the stitched vertical junctions of the FIBC. This is done to ensure that the liner bag remains securely attached to the bag throughout the product discharge. As metal laminate liner bags are being introduced for moisture control, the characteristics of the metal laminate make the bag highly susceptible to tearing from any puncture breach in the laminate. The stitching through the extended vertical flanges creates a line of needle punctures, leading to tearing of the metal laminate liner bag in use. To prevent tearing, current solutions include the elaborate application of bidirectional reinforcing tape, which is very laborious to apply. SUMMARY [004] The following summary presents a simplified overview to provide a basic understanding of some aspects of the devices, systems, and/or methods discussed in this document. This summary is not an extensive overview of the devices, systems, and/or methods discussed in this document. It is not intended to identify essential elements or delineate the scope of such devices, systems, and/or methods. Its sole purpose is to present some concepts in a simplified way as a prelude to the more detailed description that follows. [005] An embodiment is a liner bag for a container. The container may be a FIBC, for example. The liner bag includes a body portion formed by at least two sheets. The body portion has a first end and a second end that define a cavity between them. The first end has an opening to receive a product. The second end may be closed. The liner bag also includes at least one seal (e.g., a vertical seal) that joins the two sheets. The liner bag further includes at least one polymer flange attached to the two sheets and extending outward from the vertical seal to provide at least one attachment point for securing the liner bag to the container. In one embodiment, the polymer flange is attached between the two sheets. In at least one embodiment, the polymer flange is attached above or below the two sheets. In one embodiment, the vertical seal extends from the first end to the second end to join the two sheets. In one embodiment, the liner bag comprises four sheets, and the shape of the liner bag is substantially rectangular. In another embodiment, the shape of the liner bag is substantially circular. In a further embodiment, the shape of the liner bag is substantially polygonal. In one embodiment, the liner bag is configured to fit into the interior of the container to line the container. In one embodiment, the polymer flange is produced from polyethylene or polypropylene material configured to resist tearing when attached to the container. In one embodiment, the liner bag comprises four sheets wherein two sheets of the four sheets are each configured to be folded along a centerline and attached to the other two sheets of the four sheets to create a retractable liner bag. In one embodiment, two sheets of the liner bag and the polymer flange are configured to be joined by means of an adhesive or by means of a heat seal. In one embodiment, the polymer flange is integral to at least one of the sheets of the liner bag. In one embodiment, a lining bag sheet is a sheet of metal laminate that has a metal foil element and a polymer element. In another embodiment, the polymer element is applied as a coating over the metal foil element. In another embodiment, a portion of the polymer element extends beyond an edge of the metal foil element to create the polymer flange. [006] An embodiment is a method for creating and attaching a liner pouch to a container. The container may be a FIBC, for example. The method includes joining at least two sheets of metal laminate to form a liner pouch for a container. Each of the two sheets of metal laminate is comprised of a metal sheet element and a polymer element. The two sheets of metal laminate have at least one polymer flange extending outward from the two sheets of metal laminate. The method also includes stitching the lin