CA2135660A1 - Environmentally friendly pack - Google Patents

Environmentally friendly pack

Info

Publication number
CA2135660A1
CA2135660A1 CA002135660A CA2135660A CA2135660A1 CA 2135660 A1 CA2135660 A1 CA 2135660A1 CA 002135660 A CA002135660 A CA 002135660A CA 2135660 A CA2135660 A CA 2135660A CA 2135660 A1 CA2135660 A1 CA 2135660A1
Authority
CA
Canada
Prior art keywords
label
container
opening
pack
tear
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.)
Abandoned
Application number
CA002135660A
Other languages
French (fr)
Inventor
Rudolf Schwarz
Peter Hammerschmidt
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of CA2135660A1 publication Critical patent/CA2135660A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/04Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps to be fastened or secured by the material of the label itself, e.g. by thermo-adhesion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D23/00Details of bottles or jars not otherwise provided for
    • B65D23/08Coverings or external coatings
    • B65D23/0842Sheets or tubes applied around the bottle with or without subsequent folding operations
    • B65D23/0878Shrunk on the bottle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Packages (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

A description is given of a pack which comprises a container, with a device for opening the container, and a label. The label at least partially encloses the container and its opening device. The label is provided with a tear-open device which permits the complete removal of the label.

Description

- 21356fiO

Environmentally friendly pack The invention relates to a pack comprising a container, with a device for opening the container, and a label.

The development of environmental awareness in recent years and legal regulations, such as for example the packaging or~;nAnce, have resulted in the development of environmentally friendly and reusable packaging systems right through all industrial sectors. Reusability is strongly called for in particular for plastics packaging.

There have already been developed processes for the reusing of plastics scrap in which the individual compo-nents are separated by special separating processes in order in this way to permit the recovery of plastics sorted as far as possible according to grade. However, these separating processes are expensive and complex and result in a lower-quality, partly cont~m;n~ted recycled material. Furthermore, so-called single-material packs, which comprise only one grade of plastic, have been proposed. These packs offer the advantage that they do not have to be separated into individual component parts when reusing, but at the same time have the disadvantage that the material for the container and the label cannot be chosen independently of each other. This restriction is not acceptable for all applications in the packaging sector.

The present invention was based on the object of propos-ing a labelled.pack which can be recycled as same-grade material, but does not in return require complex separat-ing processes and yet permits the selection of a suitable label material independently of the material of the container.

This object is achieved according to the invention by a pack of the generic type mentioned at the beginning, wherein the label at least partially encloses the con-tainer and its opening device and the label is provided with a tear-open device, which permits the complete removal of the label.

This invention can be applied to containers of the widest variety of types. The containers preferably have a cylindrical basic shape, which can deviate to a greater or lesser extent from this regular basic shape. For example, the containers may have conical or other non-uniform areas, like some types of jam jars or mineral water bottles.

The containers may be of any desired material, such as for example sheet metal, e.g. aluminum, glass or plastic, such as for example polypropylene, polyethylene, PVC, polyethyleneterephthalate or polystyrene.

The containers have a device for opening. This device may be reclosable, such as for example all customary screw or snap closures. The device may also be intended for opening once only, for example be a tear-off lid closure, cork closure or the like.

According to the invention, the label is fitted on the container with the opening device in such a way that both the container and the opening device are at least par-tially surrounded by the label. It is, furthermore,essential for the invention that this label fitted in this way is provided with a tear-open device in such a way that the l~el is removed completely by means of this tear-open device before opening of the container.

This label consequently performs a dual function. It serves on the one hand for the usual purpose of labelling a pack and serves at the same time as a safety closure which acts as an opening barrier or indicates whether the ~135660 container has already been opened.

However, the effect according to the invention of this label is to be regarded rather as being that, on account of the design of the label as a unit comprising label and safety closure together with the design of the tear-open device essential for the invention, the label unit has to be removed completely by the consumer in order to open the container. This ensures that a separation of the label material from the container material already takes place with the consumer. The latter is forced to carry out this material separation since he cannot remove any contents from the container without completely removing the label. It is consequently ensured that the container is sent already as a single-grade material, without label, to the reusing process, whether as containers for which there is a returnable deposit or as recyclable material. In both cases, considerable advantages result from this. In the case of the container for which there is a returnable deposit, the filling company does not require any device or any additional process steps for removing the label. This has considerable associated commercial advantages. In the case of reuse as a raw material, the container can be recycled as same-grade material, and a recycled material of high quality without impurities caused by other component parts, such as printing inks or different plastic of the label, is obtained. The purity of the grade of the recycled material is independent of the label material chosen.
Consequently, a greater variety is possible in the design of the pack.
, .
In principle, two different processes can be used for the labelling according to the invention.

1. Firstly, a flat film of thermoplastic material is processed to form a tube or tube sections, then slipped over the container to be labelled and 213~660 subsequently shrink-fitted by the effect of elevated temperature.
2. The flat film is cut to a suitable width. These blanks are processed directly from the roll. This involves the container being wrapped in the film in the transverse direction of said container, so that the film edges overlap and can be fixed one on the other. Subsequently, the film is shrink-fitted by the effect of heat.

For the first process, so-called sleeve films are used.
These films have a high shrinkage in the transverse direction of the film, but at the same time a longitudi-nal shrinkage which is as low as possible. Such films are known in the prior art. What is essential is the trans-verse shrinkability of the film. It should have a trans-verse shrinkage of at least 30%, preferably 35 to 50%, in particular 40 to 65%, and a longitudinal shrinkage of at most 10%, preferably 1 to 8%, in particular 2 to 5%.
Suitable sleeve films are described, for example, in EP-A-0 477 742 and EP-A-0 400 456, to which reference is expressly made here.

For the second process, a film having high shrinkage in the longitll~i n~ 1 direction of the film (or in the direc-tion of the roll) and at the same time low transverse shrinkage is required. In general, the shrinkage of these films in the longitudinal direction is at least 20%, preferably 25 to 30%, in particular 30 to 40%, the transverse shrinkage at the same time being at most 4%, preferably 1 to 3%, in particular 0 to 2%.

Polyester, PVC, polyethylene, polystyrene or polypropylene can be used as film materials. What is essential is the shrinkability of the film, whether it is in the transverse direction or the longitudinal direc-tion, i.e. its capability of reducing its spatial extent ~13~660 under the effect of heat and thereby coming to bear snugly against the container which it encloses.

According to the invention, the label is provided with a tear-open device. This tear-open device is a tear-open strip or a predetermined breaking point, such as for example a perforation. All types customarily available on the market, such as for example boPP strips or correspon-ding strips of PVC or polyethyeleneterephthalate, can be used as tear-open strips. These strips are applied to the label in a known way by means of contact adhesive or sealing. The strip protrudes upward or downward beyond the label blank or the label and thus forms a suitable grasping tab. The grasping tab preferably protrudes down-ward (i.e. not in the direction of the opening device but away from it), since the complete removal of the label is ensured even more reliably in this way.

The label is applied to the container in such a way that the container body and the opening device are enclosed at least partially, preferably substantially, in particular completely, by the label.

For opening the container, the consumer seizes the grasping tab of the tear-open strip, tears open the enclosing label and removes it completely. Only then is it possible to open the actual closure of the container.

Figure 1 represents a packaging unit according to the invention with shrink-fitted label. 1 is the container, represented as a bottle-shaped container. 2 represents the label, whi-ch is shrink-fitted all around and also encloses the opéning device 4. 3 is the tear-open device, which permits the complete removal of the label. The grasping tab 5 is seized and torn in the direction 6 from bottom to top, as a result of which the label is removed completely and the opening device 4 is exposed.

Claims (10)

1. A pack comprising a container, with a device for opening the container, and a label, wherein the label at least partially encloses the container and its opening device and the label is provided with a tear-open device, which permits the complete removal of the label.
2. The pack as claimed in claim 1, wherein the label is produced from a film of thermoplastic polymer.
3. The pack as claimed in claim 1 and/or claim 2, wherein the label is produced from a shrinkable film.
4. The pack as claimed in one or more of claims 1 to 3, wherein the label is produced from a film having a transverse shrinkage of at least 30% and a longi-tudinal shrinkage of at most 10%.
5. The pack as claimed in one or more of claims 1 to 3, wherein the label is produced from a film having a longitudinal shrinkage of at least 20% and a trans-verse shrinkage of at most 4%.
6. The pack as claimed in one or more of claims 1 to 5, wherein the label consists substantially of PVC, polystyrene, polyester, polyethylene or polypropylene.
7. The pack as claimed in one of claims 1 to 6, wherein the label has as the tear-open device a tear-open strip or a perforation.
8. Use of a film as label for a container with a device for opening the container, wherein the label at least partially encloses the container and its opening device and wherein the label is provided with a tear-open device which permits the complete removal of the label.
9. A process for producing a pack comprising a container, with a device for opening the container, and a label, wherein the label is applied to the container in such a way that the container can be opened only when the label has been completely removed.
10. A method of opening a container with opening device, wherein it comprises two stages a and b:
a) complete removal of the label which surrounds the opening device of the container;
b) opening of the opening device of the container.
CA002135660A 1993-12-11 1994-11-18 Environmentally friendly pack Abandoned CA2135660A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4342383A DE4342383A1 (en) 1993-12-11 1993-12-11 Environmentally friendly packaging
DEP4342383.3 1993-12-11

Publications (1)

Publication Number Publication Date
CA2135660A1 true CA2135660A1 (en) 1995-06-12

Family

ID=6504821

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002135660A Abandoned CA2135660A1 (en) 1993-12-11 1994-11-18 Environmentally friendly pack

Country Status (4)

Country Link
EP (1) EP0657362A1 (en)
CA (1) CA2135660A1 (en)
DE (1) DE4342383A1 (en)
ZA (1) ZA949823B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA9610069B (en) * 1995-12-04 1997-06-23 B & H Mfg Co Inc Method of labeling containers to facilitate de-labeling
DE19750429A1 (en) * 1997-11-14 1999-05-20 Gerro Plast Gmbh Bottle or container with removable sleeve
DE19939570A1 (en) * 1999-08-20 2001-03-01 Hermann Kronseder Beverage bottle with removable cup, beverage bottle, and method for attaching a removable cup to the bottom end of a beverage bottle
AU2003203838B2 (en) * 2002-04-26 2008-02-07 Le Mac Australia Holdings Pty Ltd Shrink sleeve

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB275491A (en) * 1927-01-24 1927-08-11 Thomas Mclelland Jackson Improvements in and relating to stoppers for bottles, jars or like receptacles
DE3917652A1 (en) * 1989-05-31 1990-12-06 Hoechst Ag MULTILAYER TRANSPARENT POLYOLEFIN FILM FOR THE SCHRUMPFETIKETTIERANWENDUNG
US5145079A (en) * 1990-02-23 1992-09-08 Continental White Cap, Inc. Tamper-evident overcap
DE4030385A1 (en) * 1990-09-26 1992-04-02 Hoechst Ag TRANSPARENT SHRINK FILM MADE OF BIAXIAL-ORIENTED POLYPROPYLENE FOR ALL-ROUND LABELING
WO1993019445A1 (en) * 1992-03-16 1993-09-30 Trigon Industries Limited Information indicating device
US5292018A (en) * 1992-07-07 1994-03-08 Travisano Frank P Tamper evident seal and system

Also Published As

Publication number Publication date
EP0657362A1 (en) 1995-06-14
ZA949823B (en) 1996-06-10
DE4342383A1 (en) 1995-06-14

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Legal Events

Date Code Title Description
FZDE Dead