GB1459295A - Bag - Google Patents

Bag

Info

Publication number
GB1459295A
GB1459295A GB744574A GB744574A GB1459295A GB 1459295 A GB1459295 A GB 1459295A GB 744574 A GB744574 A GB 744574A GB 744574 A GB744574 A GB 744574A GB 1459295 A GB1459295 A GB 1459295A
Authority
GB
United Kingdom
Prior art keywords
bag
radio frequency
radiation
seal
adhesive
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
Application number
GB744574A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rexam FW Ltd
Original Assignee
Welton Bag Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Welton Bag Co Ltd filed Critical Welton Bag Co Ltd
Priority to GB744574A priority Critical patent/GB1459295A/en
Publication of GB1459295A publication Critical patent/GB1459295A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B50/00—Containers, covers, furniture or holders specially adapted for surgical or diagnostic appliances or instruments, e.g. sterile covers
    • A61B50/30—Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments
    • 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
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure

Abstract

1459295 Seaming non-metallic sheet material WELTON BAG CO Ltd 19 Feb 1974 7445/74 Heading B5K [Also in Division B8] A bacteria-resistant seal is made in a bag of non-thermoplastic sheet material, e.g. of paper, by coating at least one region of the bag or bag blank with an electromagnetic radiationactivatable adhesive and applying electromagnetic radiation to effect sealing, at least a portion of the inner surface of the bag thus made not being coated with the adhesive. The electromagnetic radiation may be radio frequency emission or microwave radiation. The adhesive may contain sensitizers appropriate to the type of radiation employed, e.g. a small amount of ionic materials. A number of bags or bag blanks may be stacked and the radiation is applied to the stack to effect the seal in each member of the stack. As shown, the lower portion of a sterilization bag used for packaging surgical and medical goods is folded and sealed by a conventional glued join 2 and a longitudinal glued join 3 is also provided. A second bottom seal 4 is made by applying a continuous band of radio frequency sensitive adhesive across the bag blank and applying radio frequency emission to this region when the bag has been formed. In a region 5, adjacent the bag mouth 6, around the inner surface of the bag, there is provided a heat seal coating which, preferably, is also sensitive to radio frequency radiation so that the closure seal can be effected either by heat sealing apparatus or by radio frequency emission.
GB744574A 1974-02-19 1974-02-19 Bag Expired GB1459295A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB744574A GB1459295A (en) 1974-02-19 1974-02-19 Bag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB744574A GB1459295A (en) 1974-02-19 1974-02-19 Bag

Publications (1)

Publication Number Publication Date
GB1459295A true GB1459295A (en) 1976-12-22

Family

ID=9833241

Family Applications (1)

Application Number Title Priority Date Filing Date
GB744574A Expired GB1459295A (en) 1974-02-19 1974-02-19 Bag

Country Status (1)

Country Link
GB (1) GB1459295A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005115857A1 (en) * 2004-05-25 2005-12-08 National Starch And Chemical Investment Holding Corporation Adhesive for bag sealing application
WO2011040799A2 (en) * 2009-09-30 2011-04-07 Albert Pla Andreu Bag made from medical-grade paper that is treated for sterilization, with sterilization-process indicators and pigmented-adhesive-based safety features, which is easy to handle and use

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005115857A1 (en) * 2004-05-25 2005-12-08 National Starch And Chemical Investment Holding Corporation Adhesive for bag sealing application
WO2011040799A2 (en) * 2009-09-30 2011-04-07 Albert Pla Andreu Bag made from medical-grade paper that is treated for sterilization, with sterilization-process indicators and pigmented-adhesive-based safety features, which is easy to handle and use
WO2011040799A3 (en) * 2009-09-30 2011-11-17 Albert Pla Andreu Bag made from medical-grade paper that is treated for sterilization, with sterilization-process indicators and pigmented-adhesive-based safety features, which is easy to handle and use
US8950576B2 (en) 2009-09-30 2015-02-10 Albert Pla Andreu Bag made from medical-grade paper that is treated for sterilization, with sterilization-process indicators and pigmented-adhesive-based safety features, which is easy to handle and use

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee