US3565738A - Plastic bag and peelable plastic tie closure tape attached thereto - Google Patents
Plastic bag and peelable plastic tie closure tape attached thereto Download PDFInfo
- Publication number
- US3565738A US3565738A US810563A US3565738DA US3565738A US 3565738 A US3565738 A US 3565738A US 810563 A US810563 A US 810563A US 3565738D A US3565738D A US 3565738DA US 3565738 A US3565738 A US 3565738A
- Authority
- US
- United States
- Prior art keywords
- bag
- plastic
- tape
- peelable
- ethylene
- 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.)
- Expired - Lifetime
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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
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/1616—Elements constricting the neck of the bag
- B65D33/165—Flexible elongated elements integral with or attached to bags or sacks ; Fastening thereof to the bag before closing
Definitions
- a plastic bag is provided with a new twist tie closure made of a tape of high tensile moduls plastic material.
- the tape has semi-rigidity and dead fold characteristics similar to those of a conventional twist tie closure made of wire coated with paper tape and is heat-sealed to the bag with a peelable heat seal.
- the present invention relates to a plastic bag and to a new tie member for closing said bag.
- Such bags are widely employed in the packaging industry and also in households where they are used to package foodstuffs and various other items to be stored. These bags are usually closed by gathering the top end of the bag over the contents and placing around the gathered end a tape having a pressure sensitive adhesive applied on one side thereof, or tying the gathered end with a piece of string or a wire twist tie (generally a tin wire coated with paper). The wire twist ties are often supplied by the bag manufacturer, as separate items in each package of bags.
- a wire twist tie provides an easier and quicker way of closing a bag than a piece of string or of adhesive tape since the ends of said wire tie are simply twisted around each other and around the gathered end of the bag, thus eliminating the making of a knot in the case of the string or the careful wrapping of the tape around the end of the bag.
- the wire twist ties present three major disadvantages: they can tear the bags in packages before the customer uses them, especially when said bags are made of a thin plastic film, they can also occasionally cause minor injuries to the fingers of the user, and they are frequently misplaced or lost by the customer once the packages have been opened.
- the object of the invention to provide a bag with a new tie member from which the wire has been eliminated and which has the desirable characteristics of semi-rigidity and dead fold found in a wire twist tie, yet is perfectly harmless both to the bags and to the users, and is always at hand when needed.
- the invention provides a plastic bag having a plastic tie member removably attached thereto by a peelable heat-seal, said tie member being in the form of a semi-rigid tape made of a plastic material having a high tensile modulus (ASTM D-882) and dead fold characteristics similar to those of a wire.
- the sole figure of the accompanying drawing illustrates a preferred embodiment of the plastic bag of the invention. It is a front view of a plastic film bag 10 having a semi-rigid tie member tape 12 peelably attached thereto by a heat seal.
- dead fold characteristics used herein in conjunction with the semi-rigid tape and with a wire, means that the tape, like the wire, tends to retain the shape given to it when bent, twisted and/or folded by the user.
- the essential characteristics of the plastic material suitable for making the semi-rigid tie member of the invention is that it should have a tensile modulus higher than 100,000 p.s.i. and preferably higher than 125,000 p.s.i.,
- the preferred materials for the tape tie member are unplasticized vinyl halide polymers such as unplasticizcd polyvinyl chloride or polyvinyl fluoride, unplasticized polyvinylidene chloride or unplasticized polyvinylidene fluoride, or copolymers of unplasticized vinyl halides and ethylenically unsaturated monomers such as unplasticized vinyl chloride-vinyl acetate copolymers or unplasticized vinyl chloride-acrylonitrile copolymers. All these vinyl materials have a tensile modulus of at least 300,000 p.s.i.
- the vinyl tapes may be satisfactorily heat-sealed, with a peelable seal to plastic bags made of ethylene-vinyl acetate copolymer and of plasticized vinyl halide polymers such as plasticized polyvinyl chloride or polyvinyl fluoride.
- High density olefin polymers such as polyethylene having a density of at least 0.95 and a tensile modulus of at least 100,000 p.s.i., are also suitable for making the tape tie member.
- a preferred olefin material is a high density polyethylene containing, in a preferred amount of from about 10% to about 30% by weight, an inorganic filler such as calcium carbonate, silica, titanium dioxide and the like, and having a tensile modulus higher than 125,000 p.s.i. Copolymers of ethylene such as ethylene-butene or ethylene-propylene copolymers having a tensile modulus of at least 1000,000 p.s.i. may also be used to produce the tie member of the invention.
- copolymers may, if desired, contain an inorganic filler in the preferred amount of from about 10% to about 30% by weight.
- the semi-rigid tapes made of these olefin polymers may be satisfactorily heat-sealed with a peelable seal to plastic bags made of olefin polymers such as polyethylene, polypropylene, ethylene-propylene or ethylene-butene copolymers, or of ethylene-vinyl acetate copolymer.
- one end of the tape tie member may be heat-sealed with a permanent seal to a top edge portion of the bag, while the rest of said tie member is peelably heat-sealed to said top edge portion of the bag.
- the tape is peeled from the bag but remains attached at one end; it is then twisted around the gathered neck of the bag.
- the tie member may also satisfactorily be made of rubber-modified polystyrene or of acrylonitrile-butadiene styrene copolymer.
- the latter material may or may not be rubber-modified as desired.
- These styrene materials have a tensile modulus in the range of from about 160,000 to about 440,000 p.s.i.
- the tapes made from these styrene materials may be satisfactorily heat-sealed with a peelable heat-seal to plastic bags made of ethylene-vinyl acetate copolymers.
- the tie member may be manufactured in various manners, for example, by extruding the plastic material in the form of a tape which is thereafter cut into any desired lengths. While still hot after the extrusion, the tape may be embossed by passage through embossing rolls, if desired. Also, the plastic material may contain pigments to produce tapes of various colors.
- a tape might be slit or cut from an extruded or calendered sheet of the plastic material.
- the sheet may have been embossed with a pattern or not, as desired.
- the method of producing the plastic bag of the invention is not critical and may be determined by one skilled in the art.
- the plastic tape could either be applied to the finished plastic bag coming out of the bag-making machine, or to the feed stock bag material entering the bag-making machine, and peelably heatsealed thereto.
- the method of making a peelable heat seal is not critical either.
- a peelable heat seal may be obtained by using a roller type sealer electrically heated to a temperature in the range of from about 250 F. to about 450 F. and rotating at a linear speed in the range of from about 20 feet to about 200 feet per minute, with sufiicient pressure from the heat seal roller to insure intimate contact of the plastic tape with the plastic bag.
- the optimum conditions for each particular plastic tape and bag may easily be selected by one skilled in the art.
- Another method of producing the plastic bag of the invention would be to extrude the tape in line with the extrusion of the film for the bag and to apply the extruded tape directly onto the extruded film.
- the tape could be extruded in line at the bag-making machine onto the feed stock bag material.
- the bag illustrated in the accompanying drawing is made of a plastic film, the invention is not limited thereto.
- the plastic bag may also be made of materials such as a plastic net, or of a Woven or non-Woven fabric made of plastic strands or strips, or of a laminate of a plastic film and a woven, or non-woven, plastic fabric layer, for example.
- the dimensions of the tie member are not critical. They depend on the dimensions of the bag which it will close and can be easily determined by one skilled in the art. The smaller the dimensions, the more economical the tie member.
- An open plastic bag having a plastic tie closure member attached thereto by a peelable heat-seal, said plastic bag being made of a material selected from the group consisting of an olefin homopolymer and copolymer, an ethylene-vinyl acetate copolymer and a plasticized vinyl halide polymer and said plastic tie member being a semi-rigid tape having dead fold characteristics and made of a material selected from the group consisting of a polyolefin, a styrene polymer, an unplasticized vinyl halide polymer and a copolymer of unplasticized vinyl halide and ethylenically unsaturated monomer, said tape material having a tensile modulus over 100,000 p.s.i.
Abstract
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US81056369A | 1969-03-26 | 1969-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3565738A true US3565738A (en) | 1971-02-23 |
Family
ID=25204123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US810563A Expired - Lifetime US3565738A (en) | 1969-03-26 | 1969-03-26 | Plastic bag and peelable plastic tie closure tape attached thereto |
Country Status (1)
Country | Link |
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US (1) | US3565738A (en) |
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3806024A (en) * | 1972-02-14 | 1974-04-23 | Colgate Palmolive Co | Adhesive closure for plastic film bags |
US3874034A (en) * | 1972-01-10 | 1975-04-01 | Mobil Oil Corp | Perforated thermoplastic plastic strap closure affixed to an open mouth bag structure |
US3953661A (en) * | 1974-01-03 | 1976-04-27 | Vinylex Corporation | Extrusion apparatus, process and article |
US3974960A (en) * | 1972-09-11 | 1976-08-17 | Mitchell John R | Plastic trash bag tie bands |
US4066167A (en) * | 1976-07-08 | 1978-01-03 | Keebler Company | Recloseable package |
US4233331A (en) * | 1978-07-31 | 1980-11-11 | American Can Company | Method of securing opener key to a container using oriented polypropylene film with solventless acrylic adhesive |
US4309237A (en) * | 1978-07-31 | 1982-01-05 | American Can Company | Apparatus for adhering a can opening key to a container |
US4557377A (en) * | 1982-10-16 | 1985-12-10 | Johnsen & Jorgensen Jaypak Limited | Mixing bag and bag making apparatus |
US4561540A (en) * | 1983-12-14 | 1985-12-31 | Xomed Inc. | Microscope drape |
US4797313A (en) * | 1985-11-08 | 1989-01-10 | Monsanto Company | Non-metallic polymeric twist tie |
US4854735A (en) * | 1987-11-04 | 1989-08-08 | Ironclad, Corporation | Plastic film bag with integral plastic film tie element, and associated fabrication methods |
US4948268A (en) * | 1987-11-04 | 1990-08-14 | John C. Marrelli | Plastic film bag with integral plastic film tie element, and associated fabrication methods |
US5009517A (en) * | 1987-11-04 | 1991-04-23 | John C. Marrelli | Plastic film bag with integral plastic film tie element, and associated fabrication methods |
US5040904A (en) * | 1989-12-20 | 1991-08-20 | Gene D. Hoffman | Infectious/medical waste containment carrier |
US5044775A (en) * | 1987-11-04 | 1991-09-03 | John C. Marrelli | Plastic film bag with integral plastic film tie element, and associated fabrication methods |
US5133607A (en) * | 1991-04-22 | 1992-07-28 | Reynolds Consumer Products Inc. | Plastic liner bag with elastic top tie strip |
US5238631A (en) * | 1985-11-08 | 1993-08-24 | Kyowa Limited | Process of making non-metallic polymeric twist ties |
USRE34477E (en) * | 1989-12-20 | 1993-12-14 | Quality Containers International, Inc. | Infectious/medical waste containment carrier |
EP0587940A2 (en) * | 1992-09-16 | 1994-03-23 | DOSTRO KUNSTSTOFFWERK GmbH | Sack with tie for recycable materials |
US5607748A (en) * | 1994-08-15 | 1997-03-04 | Bedford Industries, Inc. | Wireless polymeric twist tie |
US5989683A (en) * | 1997-09-19 | 1999-11-23 | Bedford Industries, Inc. | Wireless polymeric twist tie |
US6663809B1 (en) | 2000-07-10 | 2003-12-16 | Bedford Industries, Inc. | Wireless polymeric twist tie |
US20050072316A1 (en) * | 2003-10-03 | 2005-04-07 | Tilman Paul A. | Transparent cooking wrap having reinforcing elements |
US20050084674A1 (en) * | 2003-10-16 | 2005-04-21 | American Wire Tie Inc. | Textured wire tie and methods of making same |
US20060251464A1 (en) * | 2005-05-09 | 2006-11-09 | Bauer Walter G | Device with pull tab activation |
US20060280386A1 (en) * | 2005-06-10 | 2006-12-14 | Bublitz Todd F | Flexible bag with dual-purpose detachable closures |
US20070134048A1 (en) * | 2005-12-13 | 2007-06-14 | Bauer Walter G | Device with internal pull tab activation |
US20070147942A1 (en) * | 2005-12-14 | 2007-06-28 | Sojka Marci E | Water-dispersible device with pull tab activation |
US20090052811A1 (en) * | 2007-08-22 | 2009-02-26 | Moreau Darrell A | Plastic bag with non-metallic closure |
WO2010109090A1 (en) | 2009-03-24 | 2010-09-30 | Ali Messaoudi | Closing device, and container provided with such a device with a view to preparing a mixture |
US8399769B2 (en) | 2011-03-25 | 2013-03-19 | Jay Thomas Doll | Cable management system and method of use |
US20150082624A1 (en) * | 2013-09-24 | 2015-03-26 | Covidien Lp | Aseptic bag to encapsulate an energy source of a surgical instrument |
US9139038B1 (en) | 2009-02-17 | 2015-09-22 | Jonathan Edward Trollen | Barrier device for storing a paint roller |
US10906700B2 (en) | 2009-02-17 | 2021-02-02 | Jonathan Edward Trollen | Barrier device for storing a wet paint application device |
-
1969
- 1969-03-26 US US810563A patent/US3565738A/en not_active Expired - Lifetime
Cited By (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3874034A (en) * | 1972-01-10 | 1975-04-01 | Mobil Oil Corp | Perforated thermoplastic plastic strap closure affixed to an open mouth bag structure |
US3806024A (en) * | 1972-02-14 | 1974-04-23 | Colgate Palmolive Co | Adhesive closure for plastic film bags |
US3974960A (en) * | 1972-09-11 | 1976-08-17 | Mitchell John R | Plastic trash bag tie bands |
US3953661A (en) * | 1974-01-03 | 1976-04-27 | Vinylex Corporation | Extrusion apparatus, process and article |
US4066167A (en) * | 1976-07-08 | 1978-01-03 | Keebler Company | Recloseable package |
US4233331A (en) * | 1978-07-31 | 1980-11-11 | American Can Company | Method of securing opener key to a container using oriented polypropylene film with solventless acrylic adhesive |
US4309237A (en) * | 1978-07-31 | 1982-01-05 | American Can Company | Apparatus for adhering a can opening key to a container |
US4557377A (en) * | 1982-10-16 | 1985-12-10 | Johnsen & Jorgensen Jaypak Limited | Mixing bag and bag making apparatus |
US4561540A (en) * | 1983-12-14 | 1985-12-31 | Xomed Inc. | Microscope drape |
US4797313A (en) * | 1985-11-08 | 1989-01-10 | Monsanto Company | Non-metallic polymeric twist tie |
US5238631A (en) * | 1985-11-08 | 1993-08-24 | Kyowa Limited | Process of making non-metallic polymeric twist ties |
US4854735A (en) * | 1987-11-04 | 1989-08-08 | Ironclad, Corporation | Plastic film bag with integral plastic film tie element, and associated fabrication methods |
US4948268A (en) * | 1987-11-04 | 1990-08-14 | John C. Marrelli | Plastic film bag with integral plastic film tie element, and associated fabrication methods |
US5009517A (en) * | 1987-11-04 | 1991-04-23 | John C. Marrelli | Plastic film bag with integral plastic film tie element, and associated fabrication methods |
US5044775A (en) * | 1987-11-04 | 1991-09-03 | John C. Marrelli | Plastic film bag with integral plastic film tie element, and associated fabrication methods |
US5040904A (en) * | 1989-12-20 | 1991-08-20 | Gene D. Hoffman | Infectious/medical waste containment carrier |
USRE34477E (en) * | 1989-12-20 | 1993-12-14 | Quality Containers International, Inc. | Infectious/medical waste containment carrier |
US5133607A (en) * | 1991-04-22 | 1992-07-28 | Reynolds Consumer Products Inc. | Plastic liner bag with elastic top tie strip |
EP0587940A2 (en) * | 1992-09-16 | 1994-03-23 | DOSTRO KUNSTSTOFFWERK GmbH | Sack with tie for recycable materials |
EP0587940A3 (en) * | 1992-09-16 | 1994-06-08 | Dostro Kunststoff | Sack with tie for recycable materials |
US5607748A (en) * | 1994-08-15 | 1997-03-04 | Bedford Industries, Inc. | Wireless polymeric twist tie |
US5827461A (en) * | 1994-08-15 | 1998-10-27 | Bedford Industries, Inc. | Wireless polymeric twist tie forming process |
US5989683A (en) * | 1997-09-19 | 1999-11-23 | Bedford Industries, Inc. | Wireless polymeric twist tie |
US6663809B1 (en) | 2000-07-10 | 2003-12-16 | Bedford Industries, Inc. | Wireless polymeric twist tie |
US20050072316A1 (en) * | 2003-10-03 | 2005-04-07 | Tilman Paul A. | Transparent cooking wrap having reinforcing elements |
US7250213B2 (en) * | 2003-10-16 | 2007-07-31 | American Wire Tie Inc. | Textured wire tie and methods of making same |
US20050084674A1 (en) * | 2003-10-16 | 2005-04-21 | American Wire Tie Inc. | Textured wire tie and methods of making same |
US20060251464A1 (en) * | 2005-05-09 | 2006-11-09 | Bauer Walter G | Device with pull tab activation |
US7651290B2 (en) | 2005-05-09 | 2010-01-26 | Kimberly-Clark Worldwide, Inc. | Device with pull tab activation |
US20060280386A1 (en) * | 2005-06-10 | 2006-12-14 | Bublitz Todd F | Flexible bag with dual-purpose detachable closures |
US7950864B2 (en) | 2005-12-13 | 2011-05-31 | Kimberly-Clark Worldwide, Inc. | Device with internal pull tab activation |
US20070134048A1 (en) * | 2005-12-13 | 2007-06-14 | Bauer Walter G | Device with internal pull tab activation |
US20070147942A1 (en) * | 2005-12-14 | 2007-06-28 | Sojka Marci E | Water-dispersible device with pull tab activation |
US20090052811A1 (en) * | 2007-08-22 | 2009-02-26 | Moreau Darrell A | Plastic bag with non-metallic closure |
US9139038B1 (en) | 2009-02-17 | 2015-09-22 | Jonathan Edward Trollen | Barrier device for storing a paint roller |
US10906700B2 (en) | 2009-02-17 | 2021-02-02 | Jonathan Edward Trollen | Barrier device for storing a wet paint application device |
WO2010109090A1 (en) | 2009-03-24 | 2010-09-30 | Ali Messaoudi | Closing device, and container provided with such a device with a view to preparing a mixture |
US8399769B2 (en) | 2011-03-25 | 2013-03-19 | Jay Thomas Doll | Cable management system and method of use |
US20150082624A1 (en) * | 2013-09-24 | 2015-03-26 | Covidien Lp | Aseptic bag to encapsulate an energy source of a surgical instrument |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MORGAN GUARANTY TRUST COMPANY OF NEW YORK, AND MOR Free format text: MORTGAGE;ASSIGNORS:UNION CARBIDE CORPORATION, A CORP.,;STP CORPORATION, A CORP. OF DE.,;UNION CARBIDE AGRICULTURAL PRODUCTS CO., INC., A CORP. OF PA.,;AND OTHERS;REEL/FRAME:004547/0001 Effective date: 19860106 |
|
AS | Assignment |
Owner name: FIRST BRANDS CORPORATION, 39 OLD RIDGEBURY RD., DA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:UNION CARBIDE CORPORATION, A CORP OF NY;REEL/FRAME:004611/0201 Effective date: 19860630 Owner name: FIRST BRANDS CORPORATION, 39 OLD RIDGEBURY RD., DA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:UNION CARBIDE CORPORATION, A CORP OF NY;REEL/FRAME:004611/0201 Effective date: 19860630 |
|
AS | Assignment |
Owner name: UNION CARBIDE CORPORATION, Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:MORGAN BANK (DELAWARE) AS COLLATERAL AGENT;REEL/FRAME:004665/0131 Effective date: 19860925 |
|
AS | Assignment |
Owner name: MANUFACTURERS HANOVER TRUST COMPANY Free format text: SECURITY INTEREST;ASSIGNOR:FIRST BRANDS CORPORATION, A CORP OF DE;REEL/FRAME:004645/0280 Effective date: 19860701 |
|
AS | Assignment |
Owner name: FIRST BRANDS CORPORATION Free format text: RELASE OF SECURITY INTEREST RECORDED AT REEL 4645 AND FRAME 280-363 ON 12-08-1986.;ASSIGNOR:MANUFACTURERS HANOVER TRUST COMPANY;REEL/FRAME:005717/0599 Effective date: 19900802 |