FR2246179A5 - Cartons forming plastic film packing - have tear-open strip welded so as to tear along seams when peeled off - Google Patents

Cartons forming plastic film packing - have tear-open strip welded so as to tear along seams when peeled off

Info

Publication number
FR2246179A5
FR2246179A5 FR7334787A FR7334787A FR2246179A5 FR 2246179 A5 FR2246179 A5 FR 2246179A5 FR 7334787 A FR7334787 A FR 7334787A FR 7334787 A FR7334787 A FR 7334787A FR 2246179 A5 FR2246179 A5 FR 2246179A5
Authority
FR
France
Prior art keywords
tear
strip
item
packing
seams
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
FR7334787A
Other languages
French (fr)
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.)
British Visqueen Ltd
Original Assignee
British Visqueen 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 British Visqueen Ltd filed Critical British Visqueen Ltd
Priority to FR7334787A priority Critical patent/FR2246179A5/en
Application granted granted Critical
Publication of FR2246179A5 publication Critical patent/FR2246179A5/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
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/66—Inserted or applied tearing-strings or like flexible elements
    • 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
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements

Abstract

The packing has a tear-open strip joined to it by a butt seam along both edges. The tension strength of the strip in the lengthwise direction in relation to the tension strength of the material of the packing itself in a direction parallel to it, or the strength of the weld seams, is such that the packing tears along lines near the seams, or along the seams themselves, when a peeling force is applied to one end of the strip. The item can be packed by feeding it forward against a curtain formed by a strip of heat-shrinking plastic and one of tear-off material, pulled off opposite rolls and welded together, until the curtain encloses the item as far as its rear edge. The linear speed of the tear-off strip is no more than a quarter of that of the plastic, and the two strips are welded in the transverse direction behind the item and parted off, leaving a continuous curtain behind. The tube enclosing the item is then shrunk to size by heating.
FR7334787A 1973-09-28 1973-09-28 Cartons forming plastic film packing - have tear-open strip welded so as to tear along seams when peeled off Expired FR2246179A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7334787A FR2246179A5 (en) 1973-09-28 1973-09-28 Cartons forming plastic film packing - have tear-open strip welded so as to tear along seams when peeled off

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7334787A FR2246179A5 (en) 1973-09-28 1973-09-28 Cartons forming plastic film packing - have tear-open strip welded so as to tear along seams when peeled off

Publications (1)

Publication Number Publication Date
FR2246179A5 true FR2246179A5 (en) 1975-04-25

Family

ID=9125680

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7334787A Expired FR2246179A5 (en) 1973-09-28 1973-09-28 Cartons forming plastic film packing - have tear-open strip welded so as to tear along seams when peeled off

Country Status (1)

Country Link
FR (1) FR2246179A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2607781A1 (en) * 1986-12-03 1988-06-10 Feliciangeli Daniel Receptacles for spreadable food products
FR2755422A1 (en) * 1996-11-07 1998-05-07 Sfeima Procedure for wrapping load e.g. bottles, bricks etc.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2607781A1 (en) * 1986-12-03 1988-06-10 Feliciangeli Daniel Receptacles for spreadable food products
FR2755422A1 (en) * 1996-11-07 1998-05-07 Sfeima Procedure for wrapping load e.g. bottles, bricks etc.

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Legal Events

Date Code Title Description
ST Notification of lapse