EP0168702A2 - Reinforcement for the opening border of a plastic bag or an analogous container - Google Patents

Reinforcement for the opening border of a plastic bag or an analogous container Download PDF

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Publication number
EP0168702A2
EP0168702A2 EP85108097A EP85108097A EP0168702A2 EP 0168702 A2 EP0168702 A2 EP 0168702A2 EP 85108097 A EP85108097 A EP 85108097A EP 85108097 A EP85108097 A EP 85108097A EP 0168702 A2 EP0168702 A2 EP 0168702A2
Authority
EP
European Patent Office
Prior art keywords
plastic
edge
stiffening
reinforcement
plastic tape
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP85108097A
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German (de)
French (fr)
Other versions
EP0168702A3 (en
Inventor
Ursula Frick
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Frick Ursula
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0168702A2 publication Critical patent/EP0168702A2/en
Publication of EP0168702A3 publication Critical patent/EP0168702A3/en
Ceased legal-status Critical Current

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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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/02—Local reinforcements or stiffening inserts, e.g. wires, strings, strips or frames
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/14—Layer or component removable to expose adhesive
    • Y10T428/1471—Protective layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/2419—Fold at edge
    • Y10T428/24198—Channel-shaped edge component [e.g., binding, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24612—Composite web or sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24752—Laterally noncoextensive components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24777—Edge feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer

Definitions

  • the invention relates to an edge stiffening for the opening area of plastic bags and the like according to the preamble of claim 1.
  • edge reinforcements for example known from US Pat. No. 4,379,519, a flexible plastic band is folded in a U-shape, placed over the edge in the opening region of the bag and held there with clips.
  • the folding of the plastic tape is relatively cumbersome here.
  • the fastening of the band by means of clips is expensive.
  • the bag cannot be given any shape in the opening area.
  • the object of the invention is therefore to provide an edge stiffening of the type mentioned, which is easy to fold in a U-shape and easy to attach and with which the bag opening can be given any shape.
  • the edge stiffening shown in Fig. 1 for plastic bags and the like is made of a stable, but easily deformable plastic tape (1).
  • An embossed crease line (2) runs along the center of the outside of the plastic band (1), which enables the plastic band (1) to be folded inwards without problems.
  • plastic belt part (la) runs in the longitudinal direction, reaching the fold line (2), a flexible reinforcement (3) of thickness matched to the bending stiffness of the plastic belt (1) in the form of a metal strip, which is connected to the Plastic strap part (la) is firmly connected.
  • This reinforcement (3) can also consist of metal wire, as shown in FIG. 2, or of metal mesh, as shown in FIG. 3, or another material which gives the plastic band (1) greater dimensional stability.
  • the reinforcement can also be attached to the inside of the plastic band part (la) as shown in FIG. 4 by gluing or lamination.
  • Both plastic tape parts (la and lb) are equipped on the inside with a self-adhesive layer (4 and 5), which is covered by removable protective strips (6 and 7).
  • the edge reinforcement is attached to a plastic bag as follows:
  • a piece of the edge reinforcement corresponding to the desired extent of the later filling opening is cut taking into account an appropriate addition.
  • the protective strip (6) is pulled off the reinforced plastic tape part (la), the plastic tape (1) with the self-adhesive layer (4) is formed into a ring on the inside and glued on top of each other according to the addition.
  • the open edge of the plastic bag is glued along the middle of the plastic tape (1) to the self-adhesive layer (4) and thus connected to the reinforced plastic tape part (la). If the size of the opening area of the Plastic bag too large, it can be adjusted by folding.
  • this plastic tape part (lb) After removing the protective strip (7) from the plastic tape part without reinforcement (lb), this plastic tape part (lb) is folded inwards and glued by means of the self-adhesive layer (5) onto the plastic bag edge adhering to the reinforced plastic tape part (la).
  • edge of the plastic bag is stabilized by the edge reinforcement and can be bent into the desired shape.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Tents Or Canopies (AREA)

Abstract

Die Randversteifung für den Öffnungsbereich von Kunststoffbeuteln und dergleichen besteht aus einem stabilen, jedoch leicht verformbaren Kunststoffband, das der Länge nach, vorzugsweise in der Mitte, eine Knicklinie hat. Beide durch die Knicklinie abgegrenzten Kunststoffbandteile tragen auf der Innenseite eine Selbstklebeschicht. Die Randversteifung für Kunststoffbeutel und dergleichen ist von Hand plastisch verformbar und gibt einem Kunststoffbeutel oder dergleichen einen stabilen Rand mit beliebiger Form. Zur Verbesserung der Formstabilität kann mindestens ein Kunststoffbandteil eine Bewehrung aus z.B. Metall tragen.The edge stiffening for the opening area of plastic bags and the like consists of a stable but easily deformable plastic band, which has a fold line, preferably in the middle, in the middle. Both plastic tape parts delimited by the crease line have a self-adhesive layer on the inside. The edge stiffening for plastic bags and the like is plastically deformable by hand and gives a plastic bag or the like a stable edge with any shape. To improve the dimensional stability, at least one piece of plastic tape can be reinforced with e.g. Wear metal.

Description

Die Erfindung betrifft eine Randversteifung für den Öffnungsbereich von Kunststoffbeuteln und dergleichen nach dem Oberbegriff von Patentanspruch 1.The invention relates to an edge stiffening for the opening area of plastic bags and the like according to the preamble of claim 1.

Bei derartigen, beispielsweise aus der US - PS 43 79 519 bekannten Randversteifungen ist ein flexibles Kunststoffband U-förmig gefaltet, über die Kante im Öffnungsbereich des Beutels gelegt und dort mit Klammern gehalten. Das Falten des Kunststoffbandes ist hier verhältnismäßig umständlich. Die Befestigung des Bandes mittels Klammern kostspielig. Ferner kann dem Beutel nach Anbringen der Versteifung keine beliebige Form im Öffnungsbereich gegeben werden. Aufgabe der Erfindung ist es daher, eine Randversteifung der eingangs genannten Art zu schaffen, die leicht U-förmig faltbar und einfach befestigbar ist und mit der der Beutelöffnung eine beliebige Form gegeben werden kann.In such edge reinforcements, for example known from US Pat. No. 4,379,519, a flexible plastic band is folded in a U-shape, placed over the edge in the opening region of the bag and held there with clips. The folding of the plastic tape is relatively cumbersome here. The fastening of the band by means of clips is expensive. Furthermore, after the stiffening has been applied, the bag cannot be given any shape in the opening area. The object of the invention is therefore to provide an edge stiffening of the type mentioned, which is easy to fold in a U-shape and easy to attach and with which the bag opening can be given any shape.

Die Aufgabe wird mit den kennzeichnenden Merkmalen des Patentanspruchs 1 gelöst. Dabei wird die U-förmige Faltung durch die längsverlaufende Knicklinie erleichtert, die Befestigung erfolgt in einfacher Weise durch die Selbstklebeschicht und die plastische Verformbarkeit des Kunststoffbandes ermöglicht es, der Beutelöffnung jede beliebige Form zu geben.The object is achieved with the characterizing features of patent claim 1. The U-shaped folding is facilitated by the longitudinal crease line, the attachment is carried out in a simple manner by the self-adhesive layer and the plastic deformability of the plastic band enables the bag opening to be given any shape.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Advantageous embodiments of the invention are characterized in the subclaims.

Die Erfindung ist in der Zeichnung in vier Ausführungsbeispielen dargestellt und wird im folgenden näher beschrieben. Es zeigt

  • Fig. 1 eine ausschnittweise dargestellte perspektivische Ansicht des ersten Ausführungsbeispieles.
  • Fig. 2 einen Querschnitt durch das zweite Ausführungsbeispiel.
  • Fig. 3 einen Querschnitt durch das dritte Ausführungsbeispiel.
  • Fig. 4 einen Querschnitt durch das vierte Ausführungsbeispiel.
The invention is shown in the drawing in four exemplary embodiments and is described in more detail below. It shows
  • Fig. 1 is a fragmentary perspective view of the first embodiment.
  • Fig. 2 shows a cross section through the second embodiment.
  • Fig. 3 shows a cross section through the third embodiment.
  • Fig. 4 shows a cross section through the fourth embodiment.

Die in Fig. 1 dargestellte Randversteifung für Kunststoffbeutel und dergleichen ist aus einem stabilen, jedoch leicht verformbaren Kunststoffband (1) hergestellt. Längs der Mitte verläuft auf der Außenseite des Kunststoffbandes (1) eine geprägte Knicklinie (2), die ein problemloses Zusammenfalten des Kunststoffbandes (1) nach innen ermöglicht. In das eine, durch die Knicklinie abgegrenzte Kunststoffbandteil (la) eingebettet verläuft in Längsrichtung, an die Knicklinie (2) heranreichend, eine biegsame Bewehrung (3) von auf die Biegesteifigkeit des Kunststoffbandes (1) abgestimmter Stärke in Form eines Metallstreifens, der mit dem Kunststoffbandteil (la) fest verbunden ist. Diese Bewehrung (3) kann aber auch wie in Fig. 2 dargestellt aus Metalldraht, oder wie in Fig. 3 dargestellt aus Metallgewebe, oder einem anderen dem Kunststoffband (1) größere Formstabilität gebenden Material bestehen. Die Bewehrung kann, außer durch Einbetten in das Kunststoffbandteil (la), auch wie in Fig. 4 dargestellt durch Aufkleben oder Kaschieren auf der Innenseite des Kunststoffbandteiles (la) angebracht sein. Beide Kunststoffbandteile (la und lb) sind auf der Innenseite auf gesamter Fläche mit einer Selbstklebeschicht (4 und 5) ausgestattet, die durch abziehbare Schutzstreifen (6 und 7) abgedeckt ist.The edge stiffening shown in Fig. 1 for plastic bags and the like is made of a stable, but easily deformable plastic tape (1). An embossed crease line (2) runs along the center of the outside of the plastic band (1), which enables the plastic band (1) to be folded inwards without problems. In the one, delimited by the fold line, plastic belt part (la) runs in the longitudinal direction, reaching the fold line (2), a flexible reinforcement (3) of thickness matched to the bending stiffness of the plastic belt (1) in the form of a metal strip, which is connected to the Plastic strap part (la) is firmly connected. This reinforcement (3) can also consist of metal wire, as shown in FIG. 2, or of metal mesh, as shown in FIG. 3, or another material which gives the plastic band (1) greater dimensional stability. In addition to being embedded in the plastic band part (la), the reinforcement can also be attached to the inside of the plastic band part (la) as shown in FIG. 4 by gluing or lamination. Both plastic tape parts (la and lb) are equipped on the inside with a self-adhesive layer (4 and 5), which is covered by removable protective strips (6 and 7).

Das Anbringen der Randversteifung an einen Kunststoffbeutel erfolgt folgendermaßen:The edge reinforcement is attached to a plastic bag as follows:

Ein dem gewünschten Umfang der späteren Einfüllöffnung entsprechendes Stück der Randverstärkung wird unter Berücksichtigung einer angemessenen Zugabe zugeschnitten.A piece of the edge reinforcement corresponding to the desired extent of the later filling opening is cut taking into account an appropriate addition.

Der Schutzstreifen (6) wird von dem bewehrten Kunststoffbandteil (la) abgezogen, das Kunststoffband (1) mit der Selbstklebeschicht (4) nach innen zu einem Ring geformt und entsprechend der Zugabe übereinandergeklebt. Der offene Rand des Kunststoffbeutels wird an der Mitte des Kunststoffbandes (1) entlang auf die Selbstklebeschicht (4) geklebt und so mit dem bewehrten Kunststoffbandteil (la) verbunden. Sollte der Umfang des Öffnungsbereichs des Kunststoffbeutels zu groß sein, kann er durch Faltenlegen angepaßt werden.The protective strip (6) is pulled off the reinforced plastic tape part (la), the plastic tape (1) with the self-adhesive layer (4) is formed into a ring on the inside and glued on top of each other according to the addition. The open edge of the plastic bag is glued along the middle of the plastic tape (1) to the self-adhesive layer (4) and thus connected to the reinforced plastic tape part (la). If the size of the opening area of the Plastic bag too large, it can be adjusted by folding.

Nach Entfernen des Schutzstreifens (7) von dem Kunststoffbandteil ohne Bewehrung (lb) wird dieses Kunststoffbandteil (lb) nach innen umgelegt und mittels der Selbstklebeschicht (5) auf den, an dem bewehrten Kunststoffbandteil (la) haftenden Kunststoffbeutelrand geklebt.After removing the protective strip (7) from the plastic tape part without reinforcement (lb), this plastic tape part (lb) is folded inwards and glued by means of the self-adhesive layer (5) onto the plastic bag edge adhering to the reinforced plastic tape part (la).

Nun ist der Rand des Kunststoffbeutels durch die Randversteifung stabilisiert und kann in die gewünschte Form gebogen werden.Now the edge of the plastic bag is stabilized by the edge reinforcement and can be bent into the desired shape.

Claims (8)

1. Randversteifung für den Öffnungsbereich von Kunststoffbeuteln und dergleichen, bestehend aus einem stabilen, jedoch leicht verformbaren Kunststoffband, das der Länge nach U-förmig faltbar und den Rand des Beutels einfassend an diesem befestigbar ist, dadurch gekennzeichnet, daß das Kunststoffband (1) von Hand plastisch verformbar ist, daß es eine längsverlaufende Knicklinie (2) aufweist und daß es auf der dem Beutelrand zugewandten Seite mit einer Selbstklebeschicht (4,5) versehen ist.1. stiffening for the opening area of plastic bags and the like, consisting of a stable but easily deformable plastic tape, which is foldable in a U-shape and the edge of the bag can be attached to this, characterized in that the plastic tape (1) of It is plastically deformable by hand that it has a longitudinal crease line (2) and that it is provided with a self-adhesive layer (4, 5) on the side facing the bag edge. 2. Randversteifung nach Anspruch 1, dadurch gekennzeichnet, daß mindestens ein durch die Knicklinie (2) abgegrenztes Kunststoffbandteil (la) eine Bewehrung (3) aufweist, die sich vorzugsweise über die gesamte Länge des Kunststoffbandes erstreckt.2. stiffening edge according to claim 1, characterized in that at least one delimited by the crease line (2) plastic band part (la) has a reinforcement (3) which preferably extends over the entire length of the plastic band. 3. Randversteifung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die vorzugsweise in der Mitte verlaufende Knicklinie (2) auf der der Selbstklebeschicht (4,5) abgewandte Seite des Kunststoffbandes (1) in Längsrichtung eingeprägt ist.3. stiffening edge according to claim 1 or 2, characterized in that the preferably running in the middle crease line (2) on the side of the plastic tape (1) facing away from the self-adhesive layer (4, 5) is embossed in the longitudinal direction. 4. Randversteifung nach einem der Ansprüche 1-3, dadurch gekennzeichnet, daß die Bewehrung (3) aus Metallgewebe, Metalldraht oder einem Metallstreifen besteht.4. edge stiffening according to one of claims 1-3, characterized in that the reinforcement (3) consists of metal mesh, metal wire or a metal strip. 5. Randversteifung nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß die Bewehrung (3) an die Knicklinie (2) heranreicht.5. edge stiffening according to any one of claims 1-4, characterized in that the reinforcement (3) reaches the fold line (2). 6. Randversteifung nach einem der Ansprüche 1-5, dadurch gekennzeichnet, daß die Bewehrung (3) durch Einbetten, Aufkleben oder Kaschieren mit dem Kunststoffband (1) fest verbunden ist.6. edge stiffening according to one of claims 1-5, characterized in that the reinforcement (3) is firmly connected by embedding, gluing or laminating with the plastic tape (1). 7. Randversteifung nach einem der Ansprüche 1-6, dadurch gekennzeichnet, daß die Ränder des Kunststoffbandes (1) auf der Außenseite abgeschrägt sind.7. edge stiffening according to one of claims 1-6, characterized in that the edges of the plastic band (1) are chamfered on the outside. 8. Randversteifung nach einem der Ansprüche 1-7, dadurch gekennzeichnet, daß die Selbstklebeschicht (4 und 5)jeveils auf der gesamten Fläche der beiden durch die Knicklinie (2) abgegrenzten Kunststoffbandteile (la und lb) befindet und mit abziehbaren Schutzstreifen(6 und 7)abgedeckt ist.8. edge stiffening according to one of claims 1-7, characterized in that the self-adhesive layer (4 and 5) is located on the entire surface of the two by the crease line (2) delimited plastic tape parts (la and lb) and with removable protective strips (6 and 7) is covered.
EP85108097A 1984-07-06 1985-07-01 Reinforcement for the opening border of a plastic bag or an analogous container Ceased EP0168702A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3424885A DE3424885C1 (en) 1984-07-06 1984-07-06 Edge stiffening for the opening area of plastic bags and the like
DE3424885 1984-07-06

Publications (2)

Publication Number Publication Date
EP0168702A2 true EP0168702A2 (en) 1986-01-22
EP0168702A3 EP0168702A3 (en) 1987-01-14

Family

ID=6239972

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108097A Ceased EP0168702A3 (en) 1984-07-06 1985-07-01 Reinforcement for the opening border of a plastic bag or an analogous container

Country Status (3)

Country Link
US (1) US4621000A (en)
EP (1) EP0168702A3 (en)
DE (1) DE3424885C1 (en)

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EP0448324A1 (en) * 1990-03-23 1991-09-25 Mobil Oil Corporation A seamless thermoplastic bag, and an apparatus and method for making the same

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US4898477A (en) * 1988-10-18 1990-02-06 The Procter & Gamble Company Self-expanding flexible pouch
US5027965A (en) * 1990-06-18 1991-07-02 Dumars Anton J Fuel overflow collection device
US5184896A (en) * 1991-10-11 1993-02-09 The Procter & Gamble Company Self-expanding flexible pouch including improved extensible stay to maximize opening
US5591147A (en) * 1994-08-12 1997-01-07 Kimberly-Clark Corporation Absorbent article having an oppositely biased attachment flap
DE19654772C2 (en) * 1996-12-31 2000-11-23 Rixen & Kaul Gmbh Bag or sack made of fabric or film
US6899460B2 (en) * 2001-10-23 2005-05-31 S.C. Johnson Home Storage, Inc. Storage bag with openly biased mouth
US7347623B2 (en) * 2004-06-21 2008-03-25 John Cawley Collapsible bowl
US20060280386A1 (en) * 2005-06-10 2006-12-14 Bublitz Todd F Flexible bag with dual-purpose detachable closures
US8231024B2 (en) 2007-08-08 2012-07-31 Clear Lam Packaging, Inc. Flexible, stackable container and method and system for manufacturing same
US20100111447A1 (en) * 2008-10-31 2010-05-06 Linda Vergo Foldable bag support
EP2376338A4 (en) 2008-11-06 2012-12-26 Clear Lam Packaging Inc Flexible, stackable container and method and system for manufacturing same
CN105026282B (en) 2012-10-26 2018-08-14 优装有限责任公司 Flexible package and its manufacturing method
US10207850B2 (en) 2012-10-26 2019-02-19 Primapak, Llc. Flexible package and method of making same
US20150030263A1 (en) * 2013-07-26 2015-01-29 James R. Kemp Bag with reinforced walls
EP3145819B1 (en) 2014-05-19 2020-12-02 Primapak, LLC Apparatus and method for making a flexible package
WO2017048676A1 (en) 2015-09-18 2017-03-23 Clear Lam Packaging, Inc. Apparatus and method for making a flexible package

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DE1048220B (en) * 1956-03-01 1958-12-31 Rigot Stalars Fils Tearable cover strip to prevent dry adhesive areas from sticking to the fuel opening of bags
US4379519A (en) * 1981-04-20 1983-04-12 Unique Products Company, Inc. Paper bag stiffener

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0448324A1 (en) * 1990-03-23 1991-09-25 Mobil Oil Corporation A seamless thermoplastic bag, and an apparatus and method for making the same

Also Published As

Publication number Publication date
DE3424885C1 (en) 1985-02-28
EP0168702A3 (en) 1987-01-14
US4621000A (en) 1986-11-04

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