GB1361868A - Method of making rigid packages from flexible films - Google Patents

Method of making rigid packages from flexible films

Info

Publication number
GB1361868A
GB1361868A GB4782071A GB4782071A GB1361868A GB 1361868 A GB1361868 A GB 1361868A GB 4782071 A GB4782071 A GB 4782071A GB 4782071 A GB4782071 A GB 4782071A GB 1361868 A GB1361868 A GB 1361868A
Authority
GB
United Kingdom
Prior art keywords
film
packages
plasticizer
extruded
energy source
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
GB4782071A
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.)
Oscar Mayer Foods Corp
MAYER CO Inc OSCAR
Original Assignee
Oscar Mayer Foods Corp
MAYER CO Inc OSCAR
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 Oscar Mayer Foods Corp, MAYER CO Inc OSCAR filed Critical Oscar Mayer Foods Corp
Priority to GB4782071A priority Critical patent/GB1361868A/en
Publication of GB1361868A publication Critical patent/GB1361868A/en
Expired legal-status Critical Current

Links

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
    • B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
    • B65D75/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

1361868 Packaging foodstuffs OSCAR MAYER & CO Inc 14 Oct 1971 47820/71 Heading B8C A method of forming a package comprises locating an object to be packaged within a zone defined at least in part by a flexible film containing a plasticizer constituent which is capable of polymerization when subjected to radiation from a high-energy source whereby the film is rigidified and therafter subjecting the film to such radiation to polymerize the plasticizer and rigidify the film to a desired extent. In the arrangement shown, oxygen barrier polyvinylidene chloride films 34, 35 are extruded from die slots 30a, 32a and polyvinyl chloride films 36, 37 are extruded from die slots 31a, 31b, the films then being passed through a cooling bath 38 from which they emerge as film laminates 40, 41 and move together with a product 46 to be packaged to a package-forming unit 23 of a known form such as that described in U.S.A. Specifications 3,129,549 and 3,083,106. A chain of packages 47 emerging from the unit 23 is subjected to a heater 24 and subsequently to irradiation from a high energy source 25 to produce cross-linking of the polymerizable plasticizer in the polyvinyl chloride laminµ, therefore rigidifying the film laminations in the packages 47. The high energy source may be an electron accelerator, radio-active elements, X-ray devices, coronadischarge devices or ultra-violet emitters. The chain of packages 47 then moves through a separator 26 of known form, from which individual packages are discharged on to a conveyer 48, and waste film material is collected on a roll 49. In another arrangement, Fig. 2 (not shown), only one film (59) is extruded, the other film (62) containing a plasticizer, being drawn off a roll (63) and the packages formed, being irradiated by the source 25 after separation in the unit (55). The apparatus may be used to produce "bubblepack" type packages, Fig. 3 (not shown), or packages comprising a base-board and a laminated cover section (81), Fig. 6 (not -shown).
GB4782071A 1971-10-14 1971-10-14 Method of making rigid packages from flexible films Expired GB1361868A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4782071A GB1361868A (en) 1971-10-14 1971-10-14 Method of making rigid packages from flexible films

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4782071A GB1361868A (en) 1971-10-14 1971-10-14 Method of making rigid packages from flexible films

Publications (1)

Publication Number Publication Date
GB1361868A true GB1361868A (en) 1974-07-30

Family

ID=10446354

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4782071A Expired GB1361868A (en) 1971-10-14 1971-10-14 Method of making rigid packages from flexible films

Country Status (1)

Country Link
GB (1) GB1361868A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2765092A1 (en) * 2013-02-06 2014-08-13 Cryovac, Inc. Multi-compartment tray-less package with a rigid frame

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2765092A1 (en) * 2013-02-06 2014-08-13 Cryovac, Inc. Multi-compartment tray-less package with a rigid frame

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Legal Events

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