EP0562592A2 - Feuille pre-traitée pour emballages souples - Google Patents

Feuille pre-traitée pour emballages souples Download PDF

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Publication number
EP0562592A2
EP0562592A2 EP93104922A EP93104922A EP0562592A2 EP 0562592 A2 EP0562592 A2 EP 0562592A2 EP 93104922 A EP93104922 A EP 93104922A EP 93104922 A EP93104922 A EP 93104922A EP 0562592 A2 EP0562592 A2 EP 0562592A2
Authority
EP
European Patent Office
Prior art keywords
bonding agent
cold
face
spread
film
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.)
Withdrawn
Application number
EP93104922A
Other languages
German (de)
English (en)
Other versions
EP0562592A3 (fr
Inventor
Sergio Visona'
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.)
BURGOPACK STAMPA TRASFORMAZIONE IMBALLAGGI SpA
Original Assignee
BURGOPACK STAMPA TRASFORMAZIONE IMBALLAGGI SpA
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 BURGOPACK STAMPA TRASFORMAZIONE IMBALLAGGI SpA filed Critical BURGOPACK STAMPA TRASFORMAZIONE IMBALLAGGI SpA
Publication of EP0562592A2 publication Critical patent/EP0562592A2/fr
Publication of EP0562592A3 publication Critical patent/EP0562592A3/xx
Withdrawn legal-status Critical Current

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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
    • 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

Definitions

  • the present invention relates to a pretreated sheet for flexible packages.
  • Flexible packages having a pillow-like shape, for example for food products are manufactured by means of sheets cut from films wound in a roll.
  • a tape is coupled transversely on the face of each sheet which is to be located on the inside of the package; an end of said tape protrudes and projects from the package and facilitate its opening.
  • the tape is also cut from a film wound on a roll.
  • the face of the package sheet which is on the inside is perimetrically spread, using a template, with a cold-bonding agent, and packaging occurs by mating two flaps so as to form a tubular element which is bonded at its ends after it has been filled with the product.
  • the cold-bonding agent acts in an optimum manner by glueing on further cold-bonding agent, so that usually the tape, too, is spread with cold-bonding agent; it is spread completely on the face which fully adheres to the internal face of the sheet and is partially spread, so as to avoid contaminating the product, in the regions where mating between the flaps so as to form the tubular element entails its interposition in the bonding regions.
  • the film in rolls suitable to form the tapes is therefore completely spread with cold-bonding agent on one face and is spread in regions on its other face.
  • an interlay or interposed layer is used to avoid sticking and jamming of the material in rolls during the production of the material and during packaging.
  • the aim of the present invention is to eliminate the problem described above by providing a pretreated sheet for flexible packages, the components whereof can be wound in a roll without requiring an interposed layer.
  • a consequent primary object of the invention is to accelerate and facilitate both the process for preparing the rolls of the films suitable to feed automatic packaging machines and the packaging process itself.
  • Another important object of the invention is to reduce production and processing costs.
  • a further object of the invention is to provide a pretreated sheet for flexible packages which can be manufactured with conventional equipment and facilities.
  • a pretreated sheet for flexible packages characterized in that it comprises a film-like element which has one face on which regions are spread with a cold-bonding agent; at least one tape with a protruding end bonded onto said face with a face which is spread with hot-melting bonding agent; said tape is spread with cold-bonding agent on its other face on the regions which overlap the cold-bonding agent of said film-like element, on which said regions are appropriately made discontinuous.
  • a package having a pillow-like shape is designated by the reference numeral 10 and comprises a pretreated sheet 11 which is substantially composed of two elements: a film-like element 12 and a tape 13 which is coupled to said film-like element transversely and protrudes from it with one end.
  • Both the film-like element 12 and the tape 13 are fed from a roll and are appropriately cut.
  • the film-like element 12 is composed of a material such as aluminum, paper-like material, polypropylene, etc., whereas the tape 13 is preferably made of polypropylene or of another film of plastic material.
  • the film-like element 12 can bear printing suitable for example to identify the product it contains, whereas its internal face 15 is perimetrically spread with a cold-bonding agent 16.
  • the cold-bonding agent 16 is spread, using a template, directly on the film-like element 12 or onto a layer of paint which covers it, leaving free the internal region which is to be placed in contact with the product.
  • the tape 13 is coupled to the internal face 15 with one of its faces 17 which is completely spread with a hot-melt bonding agent 18.
  • Coupling occurs by resting the tape 13 on the element 12 by means of a bar (which is heated).
  • the hot-melting bonding agent 18 acts when it is heated to a relatively low temperature, but has poor characteristics for bonding with the cold-bonding agent 16, so that on the regions 19 in which the tape 13 overlaps said cold-bonding agent said regions are appropriately made discontinuous, providing mutually isolated sectors 20 in which the cold-bonding agent is missing or is covered with a plastic film.
  • the tape 13 adheres perfectly onto the film-like element 12 even in the regions 19 without forming air passage regions.
  • the package 10 is thus formed by folding the sheet 11 so as to obtain a tubular element, as shown in figure 4, by mating two sides of the internal face 15 on which the cold-bonding agent 16 is present.
  • the package 10 is filled with product 23 and bonded on its ends, where regions with cold-bonding agent 16 overlap.
  • the result is a pillow-shaped package which is bonded on three sides exclusively by the action of pressure, due to the presence of the cold-bonding agent, and has a continuous seal, due to the absence of non-bonding portions.
  • one end of the tape 13 protrudes; it is sufficient to pull it to facilitate the opening of the package.
  • the presence of two different and incompatible bonding agents on the tape 13 allows the material to be prepared in rolls without the occurrence of sticking and accordingly of jamming during unrolling for use.
  • the materials employed may be any according to the requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wrappers (AREA)
  • Packages (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
EP93104922A 1992-03-27 1993-03-25 Feuille pre-traitée pour emballages souples Withdrawn EP0562592A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPD920050A IT1259075B (it) 1992-03-27 1992-03-27 Foglio pretrattato per imballaggi flessibili
ITPD920050 1992-03-27

Publications (2)

Publication Number Publication Date
EP0562592A2 true EP0562592A2 (fr) 1993-09-29
EP0562592A3 EP0562592A3 (fr) 1994-02-02

Family

ID=11389859

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93104922A Withdrawn EP0562592A2 (fr) 1992-03-27 1993-03-25 Feuille pre-traitée pour emballages souples

Country Status (2)

Country Link
EP (1) EP0562592A2 (fr)
IT (1) IT1259075B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7862841B1 (en) * 2006-07-05 2011-01-04 Michael D Boyd Multiple serving container

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263807A (en) * 1963-03-14 1966-08-02 Gen Foods Corp Package
FR1509210A (fr) * 1966-12-02 1968-01-12 Cellophane Sa Amélioration aux bandelettes d'ouverture des sachets en matériaux d'emballage souples
FR2378425A7 (fr) * 1977-01-20 1978-08-18 Hoechst Ag Sachet plat pour emballer du tabac
FR2558802A1 (fr) * 1984-02-01 1985-08-02 Grellier Jean Nouveau conditionnement a bandelette d'arrachage, et appareillage pour sa fabrication
EP0468367A1 (fr) * 1990-07-24 1992-01-29 AZIONARIA COSTRUZIONI MACCHINE AUTOMATICHE-A.C.M.A.-S.p.A. Récipient tubulaire, en particulier pour produits alimentaires

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263807A (en) * 1963-03-14 1966-08-02 Gen Foods Corp Package
FR1509210A (fr) * 1966-12-02 1968-01-12 Cellophane Sa Amélioration aux bandelettes d'ouverture des sachets en matériaux d'emballage souples
FR2378425A7 (fr) * 1977-01-20 1978-08-18 Hoechst Ag Sachet plat pour emballer du tabac
FR2558802A1 (fr) * 1984-02-01 1985-08-02 Grellier Jean Nouveau conditionnement a bandelette d'arrachage, et appareillage pour sa fabrication
EP0468367A1 (fr) * 1990-07-24 1992-01-29 AZIONARIA COSTRUZIONI MACCHINE AUTOMATICHE-A.C.M.A.-S.p.A. Récipient tubulaire, en particulier pour produits alimentaires

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7862841B1 (en) * 2006-07-05 2011-01-04 Michael D Boyd Multiple serving container

Also Published As

Publication number Publication date
ITPD920050A1 (it) 1993-09-27
ITPD920050A0 (it) 1992-03-27
IT1259075B (it) 1996-03-11
EP0562592A3 (fr) 1994-02-02

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