EP1874510A1 - Procede pour realiser un couvercle dote d'un orifice - Google Patents

Procede pour realiser un couvercle dote d'un orifice

Info

Publication number
EP1874510A1
EP1874510A1 EP06704747A EP06704747A EP1874510A1 EP 1874510 A1 EP1874510 A1 EP 1874510A1 EP 06704747 A EP06704747 A EP 06704747A EP 06704747 A EP06704747 A EP 06704747A EP 1874510 A1 EP1874510 A1 EP 1874510A1
Authority
EP
European Patent Office
Prior art keywords
composite layer
opening
plastic
lid
layer
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Withdrawn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
EP06704747A
Other languages
German (de)
English (en)
Inventor
Lambert Nekula
Klaus Gerstl
Franz Kaufmann
Robert Afflenzer
Adolf Schedl
Herbert Tiefenbacher
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.)
Constantia Teich GmbH
Original Assignee
Teich 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 Teich AG filed Critical Teich AG
Publication of EP1874510A1 publication Critical patent/EP1874510A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D1/00—Multiple-step processes for making flat articles ; Making flat articles
    • B31D1/0018—Multiple-step processes for making flat articles ; Making flat articles the articles being pull-tap closure discs for bottles, jars or like containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/06—Severing by using heat
    • B26F3/08—Severing by using heat with heated members
    • 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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842—Securing closures on containers
    • B65B7/2878—Securing closures on containers by heat-sealing

Definitions

  • the invention relates to a method for producing a lid with opening aid for sealing containers, which consists of an at least two-layer composite, wherein the container facing composite layer of plastic adheres more strongly on the container edge than on the outer heat-resistant composite layer, so that when peeling the outer composite layer at least one opening forms.
  • the invention further relates to a sealing device for carrying out this method and the use of the lid produced for closing containers.
  • multi-layer lid for closing containers to allow, for example, the flavor protection required for food. Furthermore, it has been found that, especially in the case of large packs, a partial removal of the packaged goods is desired, wherein the formation of an optionally closable opening is useful. To form this opening, the contour of the opening, for example, by weakening lines or by cuts, is specified in the multi-layer composite used on the side facing the container. The disadvantage here is that, especially in mass production, the uniformity of the opening leaves something to be desired. If this is determined by cuts, it has also been shown in many places that the knives used for this tend to wear and it therefore also comes to inaccuracies regarding the dimensional accuracy of the opening.
  • sealing tools are proposed. However, these sealing tools only engage in the sealed cup rim area, so that the use of these sealing tools - -
  • Multilayer blanks of the type mentioned above are further known from EP-A-812 782 and FR-A-2 503 036.
  • the packaged material facing thermoplastic layer has cuts, so that when peeling off the upper layer of the cup board an opening for removal of the packaged product is formed.
  • the cuts ' within the thermoplastic layer are formed with sealing tools, which attack at elevated temperature and pressure directly to the thermoplastic layer.
  • this object is achieved by a method of the type mentioned above, which is characterized in that one or more openings a sealing tool with at least one projection, which corresponds to the shape of the opening, is used and that the sealing tool in the range of at least one Advantageously brought to elevated temperature and applied to the outer, heat-resistant composite layer of the lid with a contact pressure such that heat is transferred from the heat-resistant Verbund- läge in the container facing composite layer of plastic, so that the plastic is squeezed out of the lid, and so a material separation between the potential opening and the remaining composite layer takes place.
  • the invention further relates to a sealing device consisting of sealing tool and counter-plate, wherein one or more projections for forming an opening or superficial embossing are attached to the sealing tool. Further embodiments are disclosed according to the subclaims.
  • the lid produced according to the invention is further used for closing containers, advantageously by According to a present between the composite layers adhesive layer reclosability of the package is possible.
  • FIG. 1 shows the production of a lid using a correspondingly shaped sealing tool, wherein the lid material, for example consists of two composite layers. 2, an analogous process sequence, as shown in Fig. 1, shown, but between the layers of the lid member, an adhesive layer is provided.
  • Fig. 3 shows a partially heated sealing tool with a plastic insert for the back plate of the sealing tool.
  • Fig. 4 shows a sealing tool which is heated over its entire cross section.
  • Fig. 5 shows a partially heated sealing tool with recesses in the backing plate.
  • FIG. 6 shows the use of the lid produced according to FIG. 1 is shown, whereas in the case of the use according to FIG. 7 the repossibility of the pack is given by the provision of an adhesive between the composite layers of the lid.
  • FIG. 8 shows a cover produced with a sealing tool according to FIG. 4, which additionally shows a ventilation opening in addition to a removal opening.
  • an aluminum foil with a thickness of 10-100 ⁇ m is used, for example, as the outer composite layer 3.
  • a film composite which in addition to the aforementioned aluminum foil also plastic and / or paper layers.
  • an informative or decorative imprint may be provided on the side of the composite layer 3 facing the consumer.
  • the composite layer 2 facing the container is applied to the outer composite layer 3 in the form of a sealable plastic layer.
  • This advantageously has a thickness of 6 - 100 microns and may be formed in one or more layers.
  • the plastics used for this purpose are provided predominantly from the group of polystyrenes, polyethylenes, polyesters and polypropylenes and their copolymers, as well as mixtures thereof.
  • the plastics themselves may be filled or unfilled, with talc, silicic acid or chalk being advantageously used as fillers. It is decisive that the material selection for the composite layers 2 and 3 takes place such that the composite adhesion produced between the composite layers 2 and 3 is lower than the composite adhesion which exists between the composite layers. 2 and the container edge 7 'is present.
  • the usually present in roll cover material consisting of the composite layers 2 and 3 is punched out in a conventional manner in individual lids, which are stored in stacks.
  • at least one surface side of the lid is completely or partially embossed.
  • the sealing tool 9 has a projection 10, between which a sealing plate 11 is arranged.
  • the sealing tool 9 is now, depending on the plastics used in the composite layers 2 and 3 heated to a temperature of 50 ° C - 300 ° C and then with a contact pressure in a range of 50 to 700 N / cm 2 , preferably 75 to 250 N. / cm 2 in the direction of arrow 13 - see Fig. Ia - introduced.
  • dividing lines 15 - see FIG. Ic - are formed, which correspond in dimensioning substantially the projection 10.
  • the projection 10 is heated to a temperature of for example 250 ' C and pressed against the composite layer 3 with a contact pressure of, for example, 150 N / cm 2 . Since this consists of heat-resistant material, such as aluminum, the heat is transferred to the plastic layer 2, so that the plastic is converted into a softened or molten state and squeezed out of the composite. As a result, a bead 16 is formed on both sides of the dividing lines 15. This process is shown schematically in Fig. Ib or in sections in the region of the projection 10 with reference to FIG. Ic. The formation of the bead 16 can take place simultaneously with the lifting of the counter-plate 12 in the direction of the arrow 14, so that the lid 1 formed again stored in a stack or can be fed directly to the packaging machine.
  • the procedure is analogous to that of FIG. 1, see in particular FIGS. 2 a and 2 b, but with the difference that an adhesive layer 4 is present between the composite layers 2 and 3.
  • the adhesive layer 4 is applied either to the composite layer 3 or to the composite layer 2 by laminating, suitable as an adhesive, for example acrylic acid copolyesters or conventional hotmelt extrusion coatings consisting of polyethylene and its copolymers. As shown in Fig.
  • the pressed out of the composite layer 2 plastic mass causes the formation of beads 16. These are on both sides of the dividing lines 15, wherein the dividing lines 15 represent the outlines of a potential opening, for example, for the removal of the packaged goods , By forming the beads 16 now forms an irregular surface of the lid member, which makes storage in a stack difficult.
  • a sealing tool 9 is shown here in conjunction with a counterplate 12.
  • the projection 10 for the formation of the potential opening such as the ö Stammnt Spotifyö réelle 6 is provided, which here shows the shape of an ellipse. Flanking this are the elevations 10 ', in this case with a circular design - see the sectional view taken along the line AB-CD of FIG. 3b -, provided.
  • this embossing bars is adjustable insofar as in the counter-plate 12, a rubber-elastic plastic insert 18 is provided, which causes a cushioning of the soft-elastic composite layer 2 during pressing. Because of this, these are elevations with a relatively low layer thickness, namely the layer thickness x. Due to the partial heating in the region 17, however, takes place here by the projections 10 a material separation within the composite layer 2, so that the dividing lines 15 are formed. Due to the heating and simultaneous application of pressure, here the plastic of the composite layer 2 is pressed out of the composite and forms a bead 16 on both sides of the separation lines 15.
  • an opening 6 1 is also useful for draining gases formed in the interior of the package.
  • This smaller in their dimension removal opening corresponds to a projection 10 'in the sealing tool 9 - see top view of FIG. 4a and the corresponding sectional view along the line AB of FIG. 4b.
  • both the counter plate 12 and the sealing tool 9 are made of steel and heated.
  • the sealing tool 9 is partially heated in the region 17.
  • FIG. 5a shows in plan view the projection 10 and, in addition, circular elevations 10 '.
  • the counter-plate 12 has recesses 21 with the function of a male, see the sectional view of FIG. 5b along the line ABCD.
  • area 22 a deep-drawing Operation in which the elevations 19 'take over the function of a die and are formed in their thickness substantially stronger than those according to the embodiment of FIG. 3a.
  • the layer thicknesses y produced can be seen from FIG. 5c.
  • FIG. 6 the use of the cover 1 produced according to the method of FIG. 2 for closing a container 7 is shown.
  • the opening aid 5 for example a gripping tab
  • the opening aid 5 is tightened in the direction of the arrow 8, so that the composite layers 2 and 3 are separated from each other by the applied tearing force (peeling).
  • peeling Due to the material-like dividing lines 15 - not shown in FIG. 6 - the opening 6 is formed during the opening process, wherein in a compound layer 2 'corresponding to the opening adheres to the upper composite layer 3. This is also due to the proviso of the integrated sealing plate 11 - not shown in Fig.
  • a lid 1 which was prepared according to the process scheme of Fig. 2. By applying a force in the direction of the arrow 8, the opening 6 is formed. Due to the adhesive layer 4, the opening 6 can be at least loosely closed by pressing the upper composite layer 3.
  • a lid 1 is shown, which is made with a sealing tool of FIG. 4. The dimensioning of this sealing tool materialized separations are generated for each two openings, wherein the opening 6 acts as a removal opening and the opening 6 'as a vent. Both openings 6, 6 'are formed during peeling off the cover layer 3 from the cover layer 2.
  • lids with openings 6 or 6 ' can be produced in a simple manner.
  • the often circular or ellipsoidal in its dimensioning opening 6 serves for example for the removal of packaging.
  • the reduced in their dimensioning opening 6 ' is used for example for venting or for scattering pourable packaged goods, such as spices, salt or the like .
  • To the during the manufacturing process formed beads 16 to balance out of squeezed out plastic and thereby ensure a proper storage in a stack, can be generated with the sealing tool used according to the invention in an elevation by deep drawing. These elevations act as embossing bars or spacers, so that a correct storage in a stack, without this tipping over, is guaranteed.

Abstract

L'invention concerne un procédé pour réaliser un couvercle (1) doté d'un élément facilitant l'ouverture (5) et destiné à la fermeture de contenants (7). Ce couvercle est fait d'un composite comportant au moins deux couches, la couche en matière plastique (2) orientée vers le contenant adhérant plus fortement sur le bord du contenant (7') que sur la couche externe (3) thermorésistante, de sorte que le retrait de la couche externe permet de créer au moins une ouverture (6, 6'). L'ouverture (6) sert, par exemple, à l'extraction du contenu de l'emballage et l'ouverture (6') à la prise d'air.
EP06704747A 2005-04-28 2006-03-13 Procede pour realiser un couvercle dote d'un orifice Withdrawn EP1874510A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT7262005A AT501789B1 (de) 2005-04-28 2005-04-28 Verfahren zum herstellen eines deckels mit entnahmeöffnung
PCT/AT2006/000105 WO2006113951A1 (fr) 2005-04-28 2006-03-13 Procede pour realiser un couvercle dote d'un orifice

Publications (1)

Publication Number Publication Date
EP1874510A1 true EP1874510A1 (fr) 2008-01-09

Family

ID=36499307

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06704747A Withdrawn EP1874510A1 (fr) 2005-04-28 2006-03-13 Procede pour realiser un couvercle dote d'un orifice

Country Status (4)

Country Link
EP (1) EP1874510A1 (fr)
AT (1) AT501789B1 (fr)
RU (1) RU2007144084A (fr)
WO (1) WO2006113951A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007031196A1 (de) * 2007-07-04 2009-01-08 Berwing, Benjamin Nahrungsergänzungsmittel und Verfahren zur Herstellung eines mineralisierten kohlensäurenhaltigen Tafelwassers
EP2138422A1 (fr) 2008-06-27 2009-12-30 Teich Aktiengesellschaft Platine destinée à la fermeture d'un gobelet
AT11583U1 (de) 2009-09-07 2011-01-15 Teich Ag Behälter mit platine und deckel
EP2423123B1 (fr) 2010-08-25 2013-03-13 Constantia Teich GmbH Flacon de médicaments pour distribuer un produit en morceaux
DK2423122T3 (en) 2010-08-25 2019-01-28 Constantia Teich Gmbh MEDICINAL FLACONS TO SELECT PIECE OF OFFERED PRODUCTS.
LT5932B (lt) * 2012-03-27 2013-04-25 Uab Mantinga Konteineris su dvigubu dangteliu

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503036A1 (fr) * 1981-04-01 1982-10-08 Erca Bande composite a couvercles pour recipients thermoplastiques et procede, dispositif et installation de fabrication d'une telle bande composite
KR910002152B1 (ko) * 1986-09-30 1991-04-06 이데미쓰세끼유가가꾸 가부시끼가이샤 용이 개봉성 포장용기 및 그의 리드
US4913307A (en) * 1986-09-30 1990-04-03 Idemitsu Petrochemical Co., Ltd. Easily openable packaging container and method for producing the same
FR2734243B1 (fr) * 1995-05-16 1997-08-08 Alsacienne Aluminium Bande composite a opercules pour recipients thermoplastiques a ouverture par pelage
FR2741605B1 (fr) * 1995-11-29 1998-01-16 Soplaril Sa Structure d'obturation pour un contenant, contenant muni de cette structure et procede d'obturation du contenant

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006113951A1 *

Also Published As

Publication number Publication date
AT501789A1 (de) 2006-11-15
AT501789B1 (de) 2007-07-15
RU2007144084A (ru) 2009-06-10
WO2006113951A1 (fr) 2006-11-02

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