EP1453027A2 - Foil element - Google Patents

Foil element Download PDF

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Publication number
EP1453027A2
EP1453027A2 EP04100472A EP04100472A EP1453027A2 EP 1453027 A2 EP1453027 A2 EP 1453027A2 EP 04100472 A EP04100472 A EP 04100472A EP 04100472 A EP04100472 A EP 04100472A EP 1453027 A2 EP1453027 A2 EP 1453027A2
Authority
EP
European Patent Office
Prior art keywords
film
film element
element according
adhesive
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.)
Granted
Application number
EP04100472A
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German (de)
French (fr)
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EP1453027B1 (en
EP1453027A3 (en
Inventor
Ulrich Dr. Moosheimer
Robert Unglert
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.)
Schreiner Group GmbH and Co KG
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Schreiner Group GmbH and Co KG
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Application filed by Schreiner Group GmbH and Co KG filed Critical Schreiner Group GmbH and Co KG
Publication of EP1453027A2 publication Critical patent/EP1453027A2/en
Publication of EP1453027A3 publication Critical patent/EP1453027A3/en
Application granted granted Critical
Publication of EP1453027B1 publication Critical patent/EP1453027B1/en
Anticipated expiration legal-status Critical
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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
    • G09F3/02Forms or constructions
    • 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
    • B65D23/003Suspension means
    • B65D23/005Suspension means in the form of a label hanger
    • 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
    • G09F3/02Forms or constructions
    • G09F2003/027Forms or constructions used to hang up an item, e.g. a perfusion bottle
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/14Layer or component removable to expose adhesive
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/15Sheet, web, or layer weakened to permit separation through thickness
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24298Noncircular aperture [e.g., slit, diamond, rectangular, etc.]
    • Y10T428/24314Slit or elongated
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24826Spot bonds connect components

Definitions

  • the present invention relates to a film element for absorbing tensile forces.
  • Foil-shaped elements are often used to pull tensile forces towards one Transfer longitudinal expansion, for example as (in particular self-adhesive) Functional parts for carrying, connecting, closing and / or covering Objects.
  • Functional parts for carrying, connecting, closing and / or covering Objects.
  • Examples from everyday life are tapes or tapes.
  • strap labels used. These have a bow-shaped hanging tab on which is from the film level of the rest, on a container, for example pull out an infusion bottle with the label stuck on it. On the hanging tab the container is hung upside down. The bow-shaped hanging tab is then each tensile loads not insignificant according to the size and filling of the container exposed.
  • iron-on labels are, for example, from the publications DE 39 07 862 A1, DE 91 01 464 U1, EP 0 356 574 A2 and EP 0 632 422 A1 is known.
  • foils When foils are subjected to tensile stress, they start in particular from small ones Material defects micro cracks. At the end of the crack there are locally increased tensions which lead to the propagation of the crack and ultimately to the failure of the material, i.e. cause the film to tear.
  • various olefin films are used, which are higher Have tear resistance and are therefore less prone to injury, however, have a higher elongation and lower tensile strength, which is why thick foils (foil thickness approx. 150-250 ⁇ m) can be used.
  • thick foils foil thickness approx. 150-250 ⁇ m
  • too multilayer film composites used For example, a network of two 75 and 50 ⁇ m thick layers of PET are more secure against injuries than single-layer PET with a thickness of 125 ⁇ m. Even so, minor injuries result in critical areas of an iron-on label, such as at the point of suspension or on curved ones Punchings at the transition of a hanging tab into the glued area of the label, to significantly reduced tensile strengths.
  • Table 1 shows an example of the weakening of the bracket of a two-layer bracket label made of PET due to edge injuries.
  • the tensile strength is listed in Newtons for the uninjured label and one of the layers in the event of slight edge damage.
  • Tensile strength of a two-layer PET bracket unhurt Violation of a situation Injury to both layers
  • Table 2 shows the tensile strength in Newtons for the injured and the uninjured state for 25 mm wide, one- or two-ply film strips of different materials.
  • the materials "A” and “B” are tensile plastic materials of lower ductility, the materials “C” and “D” are less tensile plastic materials of higher ductility.
  • the pm values indicate the respective thickness of the film or the film layers.
  • Table 2 is easy to see that in conventional with tensile load acted upon film strips a strong decrease in tensile strength when present an edge injury is obviously inevitable.
  • the present invention has the object based on creating a film element for absorbing tensile forces, which a has increased security against tearing due to cracking.
  • a container hanging device serving label with higher security reserves especially in the case of injuries to accomplish.
  • tear resistance compared conventional technical implementations reduce the cost of materials, or cheaper materials can be used.
  • this object is achieved by a Film element according to claim 1 solved.
  • Particularly advantageous embodiments comprise film elements according to claims 2 to 15.
  • the method is completely surprising for the person skilled in the art Resilience or tear resistance of film elements absorbing tensile forces, in particular bow-shaped suspension brackets, due to local weakening, e.g. Longitudinal slots, increased.
  • the weakening zones i.e. locally through longitudinal slots or the like weakened areas act as force distribution elements, which forces along the Derive weakening in undamaged material regions, or to a larger one can distribute force-absorbing surface area.
  • the locally occurring Maximum load reduced.
  • the crack only spreads up to that Weakening zone from where voltage peaks are reduced, since the acting To a certain extent split forces, which puts stress on individual material segments is reduced.
  • the crack propagation required increases Exertion of force, and the tensile strength of the film element increases.
  • the present invention can in particular also serve to use film elements a clearly defined tear stop, i.e. a predetermined crack end provide.
  • the invention also includes foils which are only up to allowed to tear down to a certain point. For example, are defined tearing foil-shaped airbag covers possible.
  • Fig. 1a is the basic form of an inventive according to the prior art Ironing labels 1 shown with punched hanging tab 2, wherein weakening zones according to the invention are not visually highlighted here.
  • the End regions 4a, 4b of the punching 5 can be designed differently, in addition to the illustrated variant can also advantageous known from the prior art Designs, for example in the form of a screw, can be provided.
  • Fig. 1b that is Iron-on label 1 as intended by means of a self-adhesive coating glued on a container 3, which is, for example, a Infusion bottle deals, which is to be hung upside down.
  • the one with a dashed border Area A when hanging the container upside down on the hanging tab 2 is in Fig. 1c shown enlarged.
  • Fig. 2a is a bracket label designed according to the basic shape shown in Fig. 1a mapped, which has slots 6a, 6b in the hanging bracket 2, which (at intended use) are oriented in the direction of loading.
  • the slots 6a, 6b can be made by punching or cutting, and either by Go through the film or film layer or just locally in the manner of a groove reduce their thickness.
  • FIG. 3 shows the region B outlined in dashed lines of that shown in FIG. 2a Ironing labels 1 in a perspective sectional view. (Of course you can but also other tensile foil elements must be designed accordingly.)
  • the as Slit zone 6a is lengthwise on both sides, i.e. across to the direction of loading indicated by the arrows F in each case by foil material 7 limited. Crack formation progressing from the edge due to a micro-injury 8 comes to a stop at slot 6a at the latest, since voltage peaks are reduced here be, and the locally increased tensions in less stressed elements of the Foil material 7 are derived.
  • Fig. 4 shows a two-layer design, in which slots 9a, 9b in the film layers 10a, 10b are arranged offset to one another.
  • the film layers 10a, 10b are over a Adhesive layer 11 bonded together. Is only for reasons of clarity the bottom film layer 10b lifted off from the two further layers 10a, 11 shown.
  • the staggered arrangement results in higher safety reserves, if the film element in both film layers 10a, 10b at the same time an edge injury should have.
  • FIG. 5 shows a film element which has another between the film layers 12a, 12b with this glued intermediate layer 13, the modulus of elasticity is lower as the modulus of elasticity of the film layers 12a, 12b, and which thus a weakening zone in Represents the meaning of the invention, the up and down, i.e. across to the Force arrows F indicated loading direction limited by the film layers 12a, 12b is.
  • the Intermediate layer 13 stretched due to the power transmission in the adhesive layer 14a. Due to different degrees of stretch on the top and bottom of the relatively soft Liner 13 (indicated by the different length double arrows) is local Stress is released and the crack does not transfer through the adhesive layer 14b continue on the lower film layer 12b.
  • FIGS. 2b and 6 show a locally interrupted adhesive layer 11 Decoupling an upper 12a from a lower film layer 12b.
  • Adhesive-free recesses 15a, 15b weakening zones in the sense of the present Invention.
  • the crack transmission avoided from one to the other film layer 12a, 12b.
  • the top film layer 12a is lifted off the two further layers 11, 12b are shown.
  • FIGS. 2c, 7 and 8 show a locally weakened adhesive layer 11 Decoupling an upper 12a from a lower film layer 12b.
  • the Attenuation zones according to the invention, their position in FIG. 2c by hatching is indicated here consist of a local, up and down by the weakened film layers 12a, 12b limited weakening of the adhesive layer 11. It is particularly favorable here that the weakening zones are particularly at risk Marginal areas, i.e. are arranged here in the near-round curve of the punch 5.
  • the weakening is local less adhesive or less viscous or less cross-linked Adhesive 16.
  • the weakening is in a locally provided adhesive-repellent coating 17 of the lower layer 12b.
  • Another possible implementation is also local adhesive neutralization.
  • the effectiveness of the measures according to the invention for increasing the tear strength is illustrated using the bar diagram in FIG. 9. It is applied here for PET / polyolefin film composites different layer thicknesses the tensile strength Fmax in Newton. These are iron-on labels 1, which in the end region 4a, 4b the punching 5 defining the suspension bracket 2 are helical.
  • the the left, lighter bars represent the tensile strength of an unslit version according to the prior art, the right, darker bar
  • Tensile strength when slotting the particularly stressed lower layer in the area of helical punching, the slitting in the longitudinal direction of the tensile load is aligned when used as intended.
  • the four pairs of bars stand for Composites with different layer thicknesses of the individual foil layers. The higher one Resilience of the slotted designs according to the invention is clear recognizable.
  • the weakening zones according to the invention in the form of a Slitting increases the tensile strength and thus the empirically understandable Product safety of the iron-on label with otherwise the same material structure.
  • the measure according to the invention pays off Introducing a weakening zone especially.
  • the tear properties can also be varied by appropriate adjustment the parameters material structure, material thicknesses, material types, degree of stretching, Pigmentation, surface treatment. So are especially for two or multilayer composites particularly suitable for the following materials: Polyethylene terephthalate (for top and / or bottom layer), polyolefins (for top and / or lower layer), polyamides (for upper and / or lower layer), polypropylene (for top layer), oriented polypropylene (for top and / or bottom layer), Polybutylene terephthalate (for top layer), nonwovens (for top layer), lattice structures.
  • Polyethylene terephthalate for top and / or bottom layer
  • polyolefins for top and / or lower layer
  • polyamides for upper and / or lower layer
  • polypropylene for top layer
  • oriented polypropylene for top and / or bottom layer
  • Polybutylene terephthalate for top layer
  • nonwovens for top layer

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Adhesive Tapes (AREA)
  • Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)

Abstract

Foil element for absorbing tensile forces (F) comprises in at least one region at risk of tearing under loading at least one weakened zone (6a) reducing local tension peaks under loading and extending in the contact direction of the tensile forces. The weakened zone is defined on both sides by non-weakened material (7) in at least one direction perpendicular to the contact direction of the tensile forces. Preferred Features: The foil element has at least two foil layers at least partly glued, welded or sealed together. At least one weakened zone is a slit passing through only one foil layer.

Description

Die vorliegende Erfindung betrifft ein Folienelement zur Aufnahme von Zugkräften.The present invention relates to a film element for absorbing tensile forces.

Folienförmige Elemente werden häufig eingesetzt, um Zugkräfte in Richtung einer Längsausdehnung zu übertragen, beispielsweise als (insbesondere selbstklebende) Funktionsteile zum Tragen, Verbinden, Verschließen und/oder Abdecken von Gegenständen. Beispiele aus dem Alltag sind Klebebänder bzw. Klebstreifen. Ferner gehören hierzu unterschiedlichste Schlaufen, Bänder und Anhänger, Tragetaschen bzw. Tragetaschengriffe, Ladungssicherungsfolien (beispielsweise über beladenen Paletten), Verschlußetiketten, Siegeletiketten und Verpackungsfolien.Foil-shaped elements are often used to pull tensile forces towards one Transfer longitudinal expansion, for example as (in particular self-adhesive) Functional parts for carrying, connecting, closing and / or covering Objects. Examples from everyday life are tapes or tapes. Further include a wide variety of loops, ribbons and pendants, carrier bags or Carrying bag handles, load securing films (e.g. over loaded ones Pallets), sealing labels, sealing labels and packaging films.

Insbesondere im Bereich der Medizin, aber auch für Drogeriewaren, werden sogenannte Bügeletiketten verwendet. Diese weisen eine bügelförmige Aufhängelasche auf, welche sich aus der Folienebene des restlichen, auf ein Behältnis, beispielsweise eine Infusionsflasche, aufgeklebten Etiketts herausziehen läßt. An der Aufhängelasche wird das Behältnis über kopf aufgehängt. Die bügelförmige Aufhängelasche ist dann je nach Größe und Füllung des Behältnisses nicht unerheblichen Zugbelastungen ausgesetzt.Especially in the field of medicine, but also for drugstores so-called strap labels used. These have a bow-shaped hanging tab on which is from the film level of the rest, on a container, for example pull out an infusion bottle with the label stuck on it. On the hanging tab the container is hung upside down. The bow-shaped hanging tab is then each tensile loads not insignificant according to the size and filling of the container exposed.

Derartige Bügeletiketten sind beispielsweise aus den Druckschriften DE 39 07 862 A1, DE 91 01 464 U1, EP 0 356 574 A2 und EP 0 632 422 A1 bekannt. Such iron-on labels are, for example, from the publications DE 39 07 862 A1, DE 91 01 464 U1, EP 0 356 574 A2 and EP 0 632 422 A1 is known.

Bei Zugbeanspruchung von Folien treten insbesondere ausgehend von kleinen Materialdefekten Mikrorisse auf. Am Rißende wirken lokal erhöhte Spannungen, welche zu einer Fortpflanzung des Risses und schließlich zum Versagen des Materials, d.h. zum Durchreißen der Folie führen.When foils are subjected to tensile stress, they start in particular from small ones Material defects micro cracks. At the end of the crack there are locally increased tensions which lead to the propagation of the crack and ultimately to the failure of the material, i.e. cause the film to tear.

Da die Konturen von Bügeletiketten üblicherweise durch Stanzen hergestellt werden, ist hier das Auftreten von Mikrorissen ausgehend von Randdefekten, welche aus schlechten Stanzungen, etwa aufgrund einer abgenutzten Stanze resultieren können, möglich. Bei der im Vergleich zu Rollen-Flachstanzung wesentlich produktiveren Rotativ-Stanzung verschärft sich diese Problematik.Since the contours of iron-on labels are usually made by punching, here is the occurrence of microcracks starting from edge defects, which from bad punching, for example due to a worn punch, can result possible. In the case of the much more productive compared to flat roller punching Rotational punching exacerbates this problem.

Abreißen der Aufhängelasche eines Bügeletiketts führt zum Herunterfallen des daran aufgehängten Behältnisses. Bei Infusionsflaschen kann dies ernsthafte Konsequenzen für den behandelten Patienten haben.Tearing off the hanging tab of an ironing label leads to it falling off suspended container. With infusion bottles, this can have serious ramifications for the treated patient.

Nach dem Stand der Technik werden durch Zug beanspruchte Folienteile durch Verwendung dickeren oder reißfesteren, d.h. in der Regel wesentlich teureren Materials mit gewissen Sicherheitsreserven ausgelegt.According to the state of the art, film parts that are subjected to tension are pulled through Use thicker or more tear-resistant, i.e. usually much more expensive Materials designed with certain safety reserves.

So findet beispielsweise diverse Olefinfolien Anwendung, welche zwar eine höhere Weiterreißfestigkeit besitzen und somit weniger anfällig für Verletzungen sind, allerdings eine höhere Dehnung und geringere Zugfestigkeit aufweisen, weswegen sehr dicke Folien (Folienstärke ca. 150-250µm) eingesetzt werden. Ferner werden auch mehrlagige Folienverbünde eingesetzt. So besitzt beispielsweise ein Verbund zweier 75 und 50 µm starken Lagen aus PET eine höhere Sicherheit gegen Verletzungen als einlagiges PET mit einer Stärke von 125 µm. Trotzdem führen geringe Verletzungen in kritischen Bereichen eines Bügeletiketts, etwa am Aufhängepunkt oder an gekrümmten Stanzungen am Übergang einer Aufhängelasche in den aufgeklebten Bereich des Etiketts, zu deutlich verminderten Zugfestigkeiten.For example, various olefin films are used, which are higher Have tear resistance and are therefore less prone to injury, however, have a higher elongation and lower tensile strength, which is why thick foils (foil thickness approx. 150-250µm) can be used. Furthermore, too multilayer film composites used. For example, a network of two 75 and 50 µm thick layers of PET are more secure against injuries than single-layer PET with a thickness of 125 µm. Even so, minor injuries result in critical areas of an iron-on label, such as at the point of suspension or on curved ones Punchings at the transition of a hanging tab into the glued area of the label, to significantly reduced tensile strengths.

Tabelle 1 zeigt beispielhaft die Schwächung des Bügels eines zweilagigen Bügeletiketts aus PET durch Randverletzungen. Aufgeführt ist die Zugfestigkeit in Newton für das unverletzte Etikett sowie bei leichter Randverletzung einer der Lagen. Zugfestigkeit eines zweilagigen PET-Bügels unverletzt Verletzung einer Lage Verletzung beider Lagen Zugfestigkeit [N] 206 50 1,4 Table 1 shows an example of the weakening of the bracket of a two-layer bracket label made of PET due to edge injuries. The tensile strength is listed in Newtons for the uninjured label and one of the layers in the event of slight edge damage. Tensile strength of a two-layer PET bracket unhurt Violation of a situation Injury to both layers Tensile strength [N] 206 50 1.4

Wie sich Tabelle 1 unschwer entnehmen läßt, bewirkt eine leichte Randverletzung einer Lage bereits eine erhebliche Rißanfälligkeit mit einhergehender Minderung der Zugfestigkeit, während eine Randverletzung beider Lagen die Zugfestigkeit um Größenordnungen abnehmen läßt.As can be seen in Table 1, there is a slight edge injury a location is already susceptible to cracking with a concomitant reduction in Tensile strength while an edge injury to both layers around the tensile strength Orders of magnitude decrease.

In Tabelle 2 ist für 25 mm breite, ein- bzw. zweilagige Folienstreifen unterschiedlicher Materialien jeweils die Zugfestigkeit in Newton für den verletzten und den unverletzten Zustand angegeben. Bei den Materialien "A" und "B" handelt es sich dabei um zugfestere Kunststoffmaterialien geringerer Dehnbarkeit, bei den Materialien "C" und "D" um weniger zugfeste Kunststoffmaterialien höherer Dehnbarkeit. Die pm-Werte geben die jeweilige Dicke der Folie bzw. der Folienlagen an. Zugfestigkeit 25 mm breiter Folienstreifen Material Zugfestigkeit [N] unverletzt Zugfestigkeit [N] verletzt "A" (125 µm) 665 unter 300 "A" (75 µm) 437 189 "A" (50 µm) 252 112 "A" (75µm/50µm) 556 246 (beide Lagen verletzt) 366 (eine Lage verletzt) "B" (40µm/40µm) 199 63 "C" (101 µm) 40 34 "D" (165 µm) 236 167 "D" (60 µm) 77 56 Table 2 shows the tensile strength in Newtons for the injured and the uninjured state for 25 mm wide, one- or two-ply film strips of different materials. The materials "A" and "B" are tensile plastic materials of lower ductility, the materials "C" and "D" are less tensile plastic materials of higher ductility. The pm values indicate the respective thickness of the film or the film layers. Tensile strength 25 mm wide film strips material Tensile strength [N] uninjured Tensile strength [N] violated "A" (125 µm) 665 under 300 "A" (75 µm) 437 189 "A" (50 µm) 252 112 "A" (75µm / 50µm) 556 246 (both positions injured) 366 (one position violated) "B" (40µm / 40µm) 199 63 "C" (101 µm) 40 34 "D" (165 µm) 236 167 "D" (60 µm) 77 56

Tabelle 2 läßt sich unschwer entnehmen, daß bei herkömmlichen mit Zugbelastung beaufschlagten Folienstreifen eine starke Abnahme der Zugfestigkeit bei Vorliegen einer Randverletzung offenbar unvermeidbar ist. Table 2 is easy to see that in conventional with tensile load acted upon film strips a strong decrease in tensile strength when present an edge injury is obviously inevitable.

Angesichts der geschilderten Problematik liegt der vorliegenden Erfindung die Aufgabe zugrunde, ein Folienelement zur Aufnahme von Zugkräften zu schaffen, welches eine erhöhte Sicherheit gegen Reißen infolge von Rißbildung aufweist. Insbesondere ist es auch Aufgabe der vorliegenden Erfindung, ein als Behälteraufhängevorrichtung dienendes Bügeletikett mit höheren Sicherheitsreserven insbesondere bei Verletzungen zu schaffen. Andererseits sollen bei gleicher oder höherer Reißsicherheit gegenüber herkömmlichen technischen Umsetzungen der Materialaufwand verringert, bzw. kostengünstigere Materialien einsetzbar werden.In view of the problems outlined, the present invention has the object based on creating a film element for absorbing tensile forces, which a has increased security against tearing due to cracking. In particular it is also an object of the present invention, a container hanging device serving label with higher security reserves, especially in the case of injuries to accomplish. On the other hand, with the same or higher tear resistance compared conventional technical implementations reduce the cost of materials, or cheaper materials can be used.

Gemäß einem Aspekt der vorliegenden Erfindung wird diese Aufgabe durch ein Folienelement nach Anspruch 1 gelöst. Besonders vorteilhafte Ausführungsformen umfassen Folienelemente nach den Ansprüchen 2 bis 15.According to one aspect of the present invention, this object is achieved by a Film element according to claim 1 solved. Particularly advantageous embodiments comprise film elements according to claims 2 to 15.

Erfindungsgemäß wird auf für den Fachmann völlig überraschende Weise die Belastbarkeit bzw. Reißsicherheit Zugkräfte aufnehmender Folienelemente, insbesondere bügelförmiger Aufhängelaschen, durch lokale Schwächungen, wie z.B. Längsschlitze, erhöht. Die Schwächungszonen, d.h. lokal durch Längsschlitze oder dgl. geschwächte Bereiche, wirken als Kraftverteilungselemente, welche Kräfte entlang der Schwächung in unverletzte Materialregionen ableiten, bzw. auf einen größeren kraftaufnehmenden Flächenbereich verteilen können. Somit wird das lokal auftretende Belastungsmaximum reduziert. Bei Rißbildung breitet sich der Riß lediglich bis zu der Schwächungszone aus, wo Spannungsspitzen abgebaut werden, da sich die einwirkenden Kräfte gewissermaßen spalten, wodurch die Belastung einzelner Materialsegmente reduziert wird. Als Folge erhöht sich der zur Rißfortpflanzung erforderliche Kraftaufwand, und die Zugfestigkeit des Folienelements steigt.According to the invention, the method is completely surprising for the person skilled in the art Resilience or tear resistance of film elements absorbing tensile forces, in particular bow-shaped suspension brackets, due to local weakening, e.g. Longitudinal slots, increased. The weakening zones, i.e. locally through longitudinal slots or the like weakened areas act as force distribution elements, which forces along the Derive weakening in undamaged material regions, or to a larger one can distribute force-absorbing surface area. Thus the locally occurring Maximum load reduced. In the case of crack formation, the crack only spreads up to that Weakening zone from where voltage peaks are reduced, since the acting To a certain extent split forces, which puts stress on individual material segments is reduced. As a result, the crack propagation required increases Exertion of force, and the tensile strength of the film element increases.

Die vorliegende Erfindung kann insbesondere auch dazu dienen, Folienelemente mit einem klar definierten Reißstopp, d.h. einem vorherbestimmten Rißende bereitzustellen. Mit anderen Worten umfaßt die Erfindung auch Folien, welche nur bis zu einem bestimmten Punkt einreißen dürfen. So sind beispielsweise definiert einreißende folienförmige Airbag-Abdeckungen möglich.The present invention can in particular also serve to use film elements a clearly defined tear stop, i.e. a predetermined crack end provide. In other words, the invention also includes foils which are only up to allowed to tear down to a certain point. For example, are defined tearing foil-shaped airbag covers possible.

Anhand der zugehörigen Zeichnungen werden Beispiele bevorzugter Ausführungsformen der vorliegenden Erfindung näher erläutert. Die gewählten Darstellungen sind dabei nicht maßstäblich und rein schematisch aufzufassen. Insbesondere sind bei Schnittdarstellungen die Schichtdicken aus Anschaulichkeitsgründen stark vergrößert, und nach Art einer Explosionszeichnung teilweise Lücken zwischen aneinandergrenzenden Lagen dargestellt.

Fig. 1a
zeigt dabei die dem Stand der Technik entnommene Grundform eines Bügeletiketts mit Aufhängelasche. Erfindungsgemäße Schwächungszonen sind hier nicht visuell hervorgehoben.
Fig. 1b
zeigt perspektivisch ein auf einen über Kopf aufzuhängenden Behälter aufgeklebtes Bügeletikett der in Fig. 1a dargestellten Grundform.
Fig. 1c
zeigt perspektivisch in Vergößerung einen Ausschnitt der Fig. 1b im strichliert umrandeten Bereich A bei Aufhängung des Behälters über Kopf an der Aufhängelasche.
Fig. 2a
zeigt ein Bügeletikett der in Fig. 1a dargestellten Grundform, bei welchem die Schwächungszonen als Längsschlitze ausgeführt sind.
Fig. 2b
zeigt ein mehrlagiges Bügeletikett der in Fig. 1a dargestellten Grundform, bei welchem die Schwächungszonen als lokale klebstoffreie Bereiche zwischen den Folienlagen ausgeführt sind.
Fig. 2c
zeigt ein Bügeletikett der in Fig. 1a dargestellten Grundform, bei welchem die schraffiert angedeuteten Schwächungszonen als klebeschwache Randbereiche ausgeführt sind.
Fig. 3
zeigt in perspektivischer Ansicht einen Schnitt im strichliert umrandeten Bereich B des in Fig. 2a dargestellten Bügeletiketts.
Fig. 4
zeigt in perspektivischer Ansicht einen Schnitt durch ein weiteres durch Zug belastetes Folienelement, bei welchem die Schwächungszonen als zueinander versetzte Anstanzungen in unterschiedlichen Folienlagen ausgeführt sind.
Fig. 5
zeigt in perspektivischer Ansicht einen Schnitt durch ein weiteres durch Zug belastetes Folienelement, bei welchem die Schwächungszone als Zwischenlage mit niedrigerem E-Modul ausgebildet ist.
Fig. 6
zeigt in perspektivischer Ansicht einen Schnitt im strichliert umrandeten Bereich C des in Fig. 2b dargestellten Bügeletiketts.
Fig. 7
zeigt in perspektivischer Ansicht einen Schnitt im strichliert umrandeten Bereich D des in Fig. 2c dargestellten Bügeletiketts.
Fig. 8
zeigt in perspektivischer Ansicht einen Schnitt im strichliert umrandeten Bereich D des in Fig. 2c dargestellten Bügeletiketts in alternativer Ausführung.
Fig. 9
zeigt ein Diagramm, welches die erhöhte Reißfestigkeit eines erfindungsgemäß geschlitzten gegenüber einem ungeschlitzen Bügeletikett gemäß dem Stand der Technik illustriert.
Examples of preferred embodiments of the present invention are explained in more detail with reference to the accompanying drawings. The representations chosen are not to scale and are to be understood purely schematically. In particular, in the case of sectional representations, the layer thicknesses have been greatly increased for reasons of clarity, and gaps between adjacent layers have been shown in the manner of an exploded drawing.
Fig. 1a
shows the basic form of an iron-on label with a hanging tab taken from the prior art. Attenuation zones according to the invention are not visually emphasized here.
Fig. 1b
shows a perspective view of a bracket label of the basic form shown in FIG.
Fig. 1c
shows a perspective enlargement of a section of FIG. 1b in the area A with dashed lines when the container is suspended overhead from the hanging tab.
Fig. 2a
shows a bracket label of the basic form shown in Fig. 1a, in which the weakening zones are designed as longitudinal slots.
Fig. 2b
shows a multi-layer hanger label of the basic form shown in Fig. 1a, in which the weakening zones are designed as local adhesive-free areas between the film layers.
Fig. 2c
shows a hanger label of the basic form shown in Fig. 1a, in which the hatched weakening zones are designed as weak adhesive edge areas.
Fig. 3
shows a perspective view of a section in the dotted area B of the hanger label shown in Fig. 2a.
Fig. 4
shows a perspective view of a section through a further film element loaded by tension, in which the weakening zones are designed as offset punchings in different film layers.
Fig. 5
shows a perspective view of a section through another film element loaded by tension, in which the weakening zone is designed as an intermediate layer with a lower modulus of elasticity.
Fig. 6
shows a perspective view of a section in the dotted area C of the hanger label shown in Fig. 2b.
Fig. 7
shows a perspective view of a section in the dotted area D of the hanger label shown in Fig. 2c.
Fig. 8
shows a perspective view of a section in the dotted area D of the bracket label shown in Fig. 2c in an alternative embodiment.
Fig. 9
shows a diagram illustrating the increased tear strength of a slit under the invention compared to an unslit ironing label according to the prior art.

In Fig. 1a ist die dem Stand der Technik entnommene Grundform eines erfindungsgemäßen Bügeletiketts 1 mit gestanzter Aufhängelasche 2 dargestellt, wobei erfindungsgemäße Schwächungszonen hier nicht visuell hervorgehoben sind. Die Endbereiche 4a, 4b der Stanzung 5 können verschieden ausgeführt sein, neben der dargestellten Variante können auch aus dem Stand der Technik bekannte vorteilhafte Gestaltungen, beispielsweise in Schneckenform, vorgesehen sein. In Fig. 1b ist das Bügeletikett 1 mittels einer selbstklebenden Beschichtung bestimmungsgemäß auf einen Behälter 3 aufgeklebt, bei welchem es sich beispielsweise um eine Infusionsflasche handelt, welche über Kopf aufzuhängen ist. Der strichliert umrandete Bereich A bei Aufhängung des Behälters über Kopf an der Aufhängelasche 2 ist in Fig. 1c vergrößert dargestellt. Deutlich wird, daß wie im Stand der Technik der Bereich nahe der Stanzung 5 an der Aufhängelasche 2 den Großteil der Zugkräfte F aufnehmen muß. Bei gemäß dem Stand der Technik ausgeführten Bügeletiketten ist hier auch die Rißbildungsgefahr besonders groß.In Fig. 1a is the basic form of an inventive according to the prior art Ironing labels 1 shown with punched hanging tab 2, wherein weakening zones according to the invention are not visually highlighted here. The End regions 4a, 4b of the punching 5 can be designed differently, in addition to the illustrated variant can also advantageous known from the prior art Designs, for example in the form of a screw, can be provided. In Fig. 1b that is Iron-on label 1 as intended by means of a self-adhesive coating glued on a container 3, which is, for example, a Infusion bottle deals, which is to be hung upside down. The one with a dashed border Area A when hanging the container upside down on the hanging tab 2 is in Fig. 1c shown enlarged. It becomes clear that, as in the prior art, the Area near the punch 5 on the hanging tab 2 the majority of the tensile forces F must record. In the case of iron-on labels designed according to the prior art, this is here the risk of cracking is also particularly great.

In Fig. 2a ist ein gemäß der in Fig. 1a dargestellten Grundform gestaltetes Bügeletikett abgebildet, welches Schlitze 6a, 6b in der Aufhägelasche 2 aufweist, welche (bei bestimmungsgemäßem Gebrauch) in Belastungsrichtung orientiert sind. Die Schlitze 6a, 6b können durch Stanzen oder Schneiden hergestellt sein, und entweder durch die Folie bzw. Folienlage hindurchgehen oder diese lediglich nach Art einer Nut lokal in ihrer Dicke vermindern.In Fig. 2a is a bracket label designed according to the basic shape shown in Fig. 1a mapped, which has slots 6a, 6b in the hanging bracket 2, which (at intended use) are oriented in the direction of loading. The slots 6a, 6b can be made by punching or cutting, and either by Go through the film or film layer or just locally in the manner of a groove reduce their thickness.

Fig. 3 zeigt den strichliert umrandeten Bereich B des in Fig. 2a dargestellten Bügeletiketts 1 in perspektivischer Schnittdarstellung. (Selbstverständlich können aber auch andere zugbelastete Folienelemente entsprechend ausgeführt sein.) Die als Schlitz 6a ausgeführte Schwächungszone ist beidseitig der Länge nach, d.h. quer zur mit den Pfeilen F angedeuteten Belastungsrichtung jeweils durch Folienmaterial 7 begrenzt. Vom Rand her aufgrund einer Mikroverletzung fortschreitende Rißbildung 8 kommt spätestens am Schlitz 6a zum Erliegen, da hier Spannungsspitzen abgebaut werden, und die lokal erhöhten Spannungen in weniger belastete Elemente des Folienmaterials 7 abgeleitet werden.FIG. 3 shows the region B outlined in dashed lines of that shown in FIG. 2a Ironing labels 1 in a perspective sectional view. (Of course you can but also other tensile foil elements must be designed accordingly.) The as Slit zone 6a is lengthwise on both sides, i.e. across to the direction of loading indicated by the arrows F in each case by foil material 7 limited. Crack formation progressing from the edge due to a micro-injury 8 comes to a stop at slot 6a at the latest, since voltage peaks are reduced here be, and the locally increased tensions in less stressed elements of the Foil material 7 are derived.

Fig. 4 zeigt eine zweilagige Ausführung, bei welcher Schlitze 9a, 9b in den Folienlagen 10a, 10b zueinander versetzt angeordnet sind. Die Folienlagen 10a, 10b sind über eine Klebstoffschicht 11 miteinander verbunden. Lediglich aus Anschaulichkeitsgründen ist die unterste Folienlage 10b abgehoben von den beiden weiteren Schichten 10a, 11 dargestellt. Durch die versetzte Anordnung ergeben sich höhere Sicherheitsreserven, wenn das Folienelement in beiden Folienlagen 10a, 10b zugleich eine Randverletzung aufweisen sollte.Fig. 4 shows a two-layer design, in which slots 9a, 9b in the film layers 10a, 10b are arranged offset to one another. The film layers 10a, 10b are over a Adhesive layer 11 bonded together. Is only for reasons of clarity the bottom film layer 10b lifted off from the two further layers 10a, 11 shown. The staggered arrangement results in higher safety reserves, if the film element in both film layers 10a, 10b at the same time an edge injury should have.

Fig. 5 zeigt ein Folienelement, welches zwischen den Folienlagen 12a, 12b noch eine mit diesen verklebte Zwischenlage 13 aufweist, deren Elastizitätsmodul geringer ist als der E-Modul der Folienlagen 12a, 12b, und welche somit eine Schwächungszone im Sinne der Erfindung darstellt, die nach oben und unten, d.h. quer zur durch die Kraftpfeile F angedeuteten Belastungsrichtung von den Folienlagen 12a, 12b begrenzt ist. Bei fortschreitender Rißbildung 8 in der oberen Folienlage 12b wird die Zwischenlage 13 aufgrund der Kraftübertragung in der Klebstoffschicht 14a gedehnt. Durch unterschiedlich starke Dehnung an Ober- und Unterseite der relativ weichen Zwischenlage 13 (angedeutet durch die unterschiedlich langen Doppelpfeile) wird lokal Spannung abgebaut, und der Riß überträgt sich nicht über die Klebstoffschicht 14b weiter auf die untere Folienlage 12b. FIG. 5 shows a film element which has another between the film layers 12a, 12b with this glued intermediate layer 13, the modulus of elasticity is lower as the modulus of elasticity of the film layers 12a, 12b, and which thus a weakening zone in Represents the meaning of the invention, the up and down, i.e. across to the Force arrows F indicated loading direction limited by the film layers 12a, 12b is. As crack formation 8 progresses in the upper film layer 12b, the Intermediate layer 13 stretched due to the power transmission in the adhesive layer 14a. Due to different degrees of stretch on the top and bottom of the relatively soft Liner 13 (indicated by the different length double arrows) is local Stress is released and the crack does not transfer through the adhesive layer 14b continue on the lower film layer 12b.

Die Figuren 2b und 6 zeigen eine lokal unterbrochene Klebstoffschicht 11 zur Entkopplung einer oberen 12a von einer unteren Folienlage 12b. Hier stellen die klebstofffreien Aussparungen 15a, 15b Schwächungszonen im Sinne der vorliegenden Erfindung dar. Wie im Zusammenhang mit Fig. 5 erläutert, wird so die Rißübertragung von einer auf die andere Folienlage 12a, 12b vermieden. Zudem wird durch Spannungsableitung der Rißfortsetzung entgegengewirkt, wenn ein in einer Folienlage 12a, 12b entstandener Riß die Schwächungszone 15a erreicht. Lediglich aus Anschaulichkeitsgründen ist die oberste Folienlage 12a abgehoben von den beiden weiteren Schichten 11, 12b dargestellt.FIGS. 2b and 6 show a locally interrupted adhesive layer 11 Decoupling an upper 12a from a lower film layer 12b. Here are the Adhesive-free recesses 15a, 15b weakening zones in the sense of the present Invention. As explained in connection with Fig. 5, the crack transmission avoided from one to the other film layer 12a, 12b. In addition, through Stress dissipation of the crack continuation counteracted when one in a foil layer 12a, 12b created crack reaches the weakened zone 15a. Just out For reasons of clarity, the top film layer 12a is lifted off the two further layers 11, 12b are shown.

Die Figuren 2c, 7 und 8 zeigen eine lokal geschwächte Klebstoffschicht 11 zur Entkopplung einer oberen 12a von einer unteren Folienlage 12b. Die erfindungsgemäßen Schwächungszonen, deren Lage in Fig. 2c durch Schraffuren angedeutet ist, bestehen hier in einer lokalen, nach oben und unten durch die ungeschwächten Folienlagen 12a, 12b begrenzten Schwächung der Klebstoffschicht 11. Günstig ist hier insbesondere, daß die Schwächungszonen in besonders gefährdeten Randbereichen, d.h. hier in der endnahen Rundung der Stanzung 5 angeordnet sind. Gemäß der in Fig. 7 dargestellten Alternative besteht die Schwächung in einem lokal weniger stark klebenden bzw. niedriger viskosen oder weniger stark vernetzten Klebstoff 16. Bei der in Fig. 8 dargestellten Alternative besteht die Schwächung in einer lokal vorgesehenen klebstoffabweisenden Beschichtung 17 der unteren Lage 12b. Hierbei kann es sich beispielsweise um eine Silikonisierung handeln. Wiederum aus Anschaulichkeitsgründen ist in Fig. 7 die obere Folienschicht 12a und in Fig. 8 die untere Folienschicht 12b samt klebstoffabweisender Beschichtung 17 jeweils vom restlichen Folienverbund abgehoben dargestellt. Eine mögliche Ausführung ist ferner auch eine lokale Klebstoffneutalisation.FIGS. 2c, 7 and 8 show a locally weakened adhesive layer 11 Decoupling an upper 12a from a lower film layer 12b. The Attenuation zones according to the invention, their position in FIG. 2c by hatching is indicated here consist of a local, up and down by the weakened film layers 12a, 12b limited weakening of the adhesive layer 11. It is particularly favorable here that the weakening zones are particularly at risk Marginal areas, i.e. are arranged here in the near-round curve of the punch 5. According to the alternative shown in FIG. 7, the weakening is local less adhesive or less viscous or less cross-linked Adhesive 16. In the alternative shown in Fig. 8, the weakening is in a locally provided adhesive-repellent coating 17 of the lower layer 12b. This can be siliconization, for example. Again out For reasons of clarity, the upper film layer 12a in FIG. 7 and the upper one in FIG. 8 lower film layer 12b including adhesive-repellent coating 17 each from rest of the film composite shown. Another possible implementation is also local adhesive neutralization.

Es versteht sich von selbst, daß die anhand der Beispiele dargestellten Ausführungen der Schwächungszonen auch miteinander kombiniert werden können.It goes without saying that the explanations given using the examples of the weakening zones can also be combined with one another.

Die Wirksamkeit der erfindungsgemäßen Maßnahmen zur Erhöhung der Reißfestigkeit ist anhand des Balken-Diagramms in Fig. 9 verdeutlicht. Aufgetragen ist hier für PET/Polyolefin-Folienverbünde unterschiedlicher Schichtdicken die Zugfestigkeit Fmax in Newton. Es handelt sich dabei um Bügeletiketten 1, welche im Endbereich 4a, 4b der die Aufhängelasche 2 definierenden Stanzung 5 schneckenförmig ausgebildet sind. Der jeweils linke, hellere Balken stellt die Zugfestigkeit einer ungeschlitzten Version gemäß dem Stand der Technik dar, der jeweils rechte, dunklere Balken die Zugfestigkeit bei Schlitzung der besonders belasteten unteren Lage im Bereich der schneckenförmigen Stanzung, wobei die Schlitzung in Längsrichtung der Zugbelastung bei bestimmungsgemäßen Gebrauch ausgerichtet ist. Die vier Balkenpaare stehen für Verbünde mit unterschiedlichen Schichtdicken der einzelnen Folienlagen. Die höhere Belastbarkeit der erfindungsgemäßen geschlitzten Ausführungen ist deutlich erkennbar.The effectiveness of the measures according to the invention for increasing the tear strength is illustrated using the bar diagram in FIG. 9. It is applied here for PET / polyolefin film composites different layer thicknesses the tensile strength Fmax in Newton. These are iron-on labels 1, which in the end region 4a, 4b the punching 5 defining the suspension bracket 2 are helical. The the left, lighter bars represent the tensile strength of an unslit version according to the prior art, the right, darker bar Tensile strength when slotting the particularly stressed lower layer in the area of helical punching, the slitting in the longitudinal direction of the tensile load is aligned when used as intended. The four pairs of bars stand for Composites with different layer thicknesses of the individual foil layers. The higher one Resilience of the slotted designs according to the invention is clear recognizable.

Im dargestellten Experiment wurden die Bügel im schneckenförmigen Bereich durch einen Schnitt verletzt. □Die erfindungsgemäßen Schwächungszonen in Form einer Schlitzung erhöhen hier empirisch nachvollziehbar die Reißfestigkeit und somit die Produktsicherheit des Bügeletiketts bei sonst gleichem Materialaufbau. Bei einer unerwünschten Verletzung in der Praxis, welche z.B. aufgrund abgenutzter Stanzen nicht ausgeschlossen werden kann, zahlt sich die erfindungsgemäße Maßnahme des Einbringens einer Schwächungszone besonders aus.In the experiment shown, the stirrups in the helical area were cut through hurt a cut. □ The weakening zones according to the invention in the form of a Slitting increases the tensile strength and thus the empirically understandable Product safety of the iron-on label with otherwise the same material structure. At a undesirable injury in practice, e.g. due to worn punches cannot be excluded, the measure according to the invention pays off Introducing a weakening zone especially.

Die Reißeigenschaften können ferner variiert werden durch entsprechende Anpassung der Parameter Materialaufbau, Materialdicken, Materialtypen, Reckgrad, Pigmentierung, Oberflächenbehandlung. So sind insbesondere für zwei- oder mehrlagige Verbunde insbesondere die folgenden Materialien geeignet: Polyethylenterephthalat (für obere und/oder untere Lage), Polyolefine (für obere und/oder untere Lage), Polyamide (für obere und/oder untere Lage), Polypropylen (für obere Lage), orientiertes Polypropylen (für obere und/oder untere Lage), Polybutylenterephthalat (für obere Lage), Vliese (für obere Lage), Gitterstrukturen.The tear properties can also be varied by appropriate adjustment the parameters material structure, material thicknesses, material types, degree of stretching, Pigmentation, surface treatment. So are especially for two or multilayer composites particularly suitable for the following materials: Polyethylene terephthalate (for top and / or bottom layer), polyolefins (for top and / or lower layer), polyamides (for upper and / or lower layer), polypropylene (for top layer), oriented polypropylene (for top and / or bottom layer), Polybutylene terephthalate (for top layer), nonwovens (for top layer), lattice structures.

Claims (15)

Folienelement (1) zur Aufnahme von Zugkräften,
dadurch gekennzeichnet, daß das Folienelement (1) in mindestens einem unter Belastung rißgefährdeten Bereich (A, B, C, D) mindestens eine sich in Angriffsrichtung der Zugkräfte (F) erstreckende, unter Belastung lokale Spannungsspitzen abbauende Schwächungszone (6a, 6b, 9a, 9b, 13, 15a, 15b, 16) aufweist, welche in mindestens einer Richtung quer zur Angriffsrichtung der Zugkräfte (F) beidseitig von ungeschwächtem Material (7, 10a, 10b, 12a, 12b) begrenzt ist.
Foil element (1) for absorbing tensile forces,
characterized in that the film element (1) in at least one area (A, B, C, D) prone to cracking under load, at least one weakening zone (6a, 6b, 9a) which extends in the direction of the tensile forces (F) and reduces local stress peaks under load 9b, 13, 15a, 15b, 16) which is delimited on both sides by at least one weakened material (7, 10a, 10b, 12a, 12b) in at least one direction transverse to the direction of attack of the tensile forces (F).
Folienelement gemäß Anspruch 1, dadurch gekennzeichnet, daß das Folienelement (1) mindestens zwei Folienlagen (10a, 10b, 12a, 12b) aufweist.Film element according to claim 1, characterized in that the film element (1) has at least two film layers (10a, 10b, 12a, 12b). Folienelement gemäß Anspruch 2, dadurch gekennzeichnet, daß die Folienlagen (10a, 10b, 12a, 12b) zumindest teilweise miteinander verklebt, verschweißt oder versiegelt sind.Film element according to claim 2, characterized in that the film layers (10a, 10b, 12a, 12b) are at least partially glued, welded or sealed together. Folienelement gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß mindestens eine Schwächungszone einen Längsschlitz (6a, 6b, 9a, 9b) aufweist.Film element according to one of the preceding claims, characterized in that at least one weakening zone has a longitudinal slot (6a, 6b, 9a, 9b). Folienelement gemäß Anspruch 4, dadurch gekennzeichnet, daß der Längsschlitz (9a, 9b) nur durch jeweils eine Folienlage (10a, 10b) hindurchgeht. Film element according to claim 4, characterized in that the longitudinal slot (9a, 9b) only passes through one film layer (10a, 10b). Folienelement gemäß Anspruch 5, dadurch gekennzeichnet, daß das Folienelement mehrere zueinander versetzte Längsschlitze (9a, 9b) in unterschiedlichen Folienlagen (10a, 10b) aufweist.Film element according to claim 5, characterized in that the film element has a plurality of longitudinal slots (9a, 9b) offset from one another in different film layers (10a, 10b). Folienelement gemäß einem der Ansprüche 2-6, dadurch gekennzeichnet, daß mindestens eine Schwächungszone eine Trennhilfe (13, 15a, 15b, 16, 17) aufweist, welche die lokale, zumindest teilweise kräftemäßige Entkopplung zweier angrenzender Folienlagen (12a, 12b) bewirken kann.Film element according to one of claims 2-6, characterized in that at least one weakening zone has a separating aid (13, 15a, 15b, 16, 17) which can bring about the local, at least partially force-dependent decoupling of two adjacent film layers (12a, 12b). Folienelement gemäß Anspruch 7, dadurch gekennzeichnet, daß das Folienelement (1) mindestens eine vollflächige oder teilflächige Klebstoffschicht (11) aufweist, welche zwei Folienlagen (10a, 10b, 12a, 12b) miteinander verbindet, und daß die Trennhilfe als Mittel (13, 15a, 15b, 16, 17) zur lokalen Verminderung der Klebkraft zwischen den Folienlagen (12a, 12b)ausgeführt ist.Film element according to claim 7, characterized in that the film element (1) has at least one full or partial surface adhesive layer (11) which connects two film layers (10a, 10b, 12a, 12b) and that the separating aid as means (13, 15a , 15b, 16, 17) for locally reducing the adhesive force between the film layers (12a, 12b). Folienelement gemäß Anspruch 8, dadurch gekennzeichnet, die Mittel zur lokalen Verminderung der Klebkraft mindestens eines der folgenden Mittel umfassen: lokale Unterbrechung (15a, 15b) der Klebstoffschicht (11), lokal geringere Vernetzung der Klebstoffschicht (11) innerhalb der Klebstoffschicht (11) lokale Anordnung eines Klebstoffs (16) mit geringerer flächenbezogener Klebkraft als die umgebende Klebstoffschicht 811), lokal eingebrachte Klebstoffneutralisation, lokal Klebkraft mindernd behandelte Oberfläche (17) mindestens einer an die Klebstoffschicht (11) angrenzenden Folienlage (12b). Film element according to claim 8, characterized in that the means for locally reducing the adhesive force comprise at least one of the following means: local interruption (15a, 15b) of the adhesive layer (11), locally less crosslinking of the adhesive layer (11) within the adhesive layer (11) local arrangement of an adhesive (16) with a lower area-related adhesive strength than the surrounding adhesive layer 811), locally introduced adhesive neutralization, locally treated surface (17) which reduces adhesive strength, at least one film layer (12b) adjoining the adhesive layer (11). Folienelement gemäß Anspruch 7, dadurch gekennzeichnet, daß die Trennhilfe als eine Zwischenlage (13) höherer Dehnbarkeit ausgeführt ist.Foil element according to claim 7, characterized in that the separating aid is designed as an intermediate layer (13) of higher elasticity. Folienelement gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß das Folienelement (1) an seiner Unterseite zumindest teilweise selbstklebend beschichtet ist. Film element according to one of the preceding claims, characterized in that the film element (1) is at least partially self-adhesive coated on its underside. Folienelement gemäß Anspruch 10, dadurch gekennzeichnet, daß das Folienelement als Bügeletikett (1), beispielsweise zum Aufhängen von Infusionsflaschen, ausgeführt ist, welches eine durch eine Stanzung (5) abgegrenzte, im aufgeklebten Zustand des Bügeletiketts (1) aus der übrigen Fläche des Bügeletiketts herausschwenkbare und/oder herausziehbare Aufhängelasche (2), beispielsweise zum Aufhängen einer Infusionsflasche (3), auf welche das Bügeletikett (1) aufklebbar ist, aufweist.Film element according to claim 10, characterized in that the film element is designed as a hanger label (1), for example for hanging infusion bottles, which is delimited by a punch (5) and in the glued-on state of the hanger label (1) from the remaining surface of the hanger label has a swing-out and / or pull-out hanging flap (2), for example for hanging up an infusion bottle (3) onto which the hanger label (1) can be stuck. Folienelement gemäß einem der Ansprüche 1-11, dadurch gekennzeichnet, daß das Folienelement als Tragegriff ausgeführt ist.Film element according to one of claims 1-11, characterized in that the film element is designed as a handle. Folienelement gemäß einem der Ansprüche 1-11, dadurch gekennzeichnet, daß das Folienelement als Ladungssicherungsfolie ausgeführt ist.Film element according to one of claims 1-11, characterized in that the film element is designed as a load securing film. Folienelement gemäß Anspruch 11, dadurch gekennzeichnet, daß es als Klebestreifen ausgeführt ist.Film element according to claim 11, characterized in that it is designed as an adhesive strip.
EP04100472.2A 2003-02-20 2004-02-09 Foil element Expired - Lifetime EP1453027B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10307250 2003-02-20
DE10307250A DE10307250B4 (en) 2003-02-20 2003-02-20 film element

Publications (3)

Publication Number Publication Date
EP1453027A2 true EP1453027A2 (en) 2004-09-01
EP1453027A3 EP1453027A3 (en) 2007-08-08
EP1453027B1 EP1453027B1 (en) 2013-09-11

Family

ID=32748014

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04100472.2A Expired - Lifetime EP1453027B1 (en) 2003-02-20 2004-02-09 Foil element

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US (1) US7211312B2 (en)
EP (1) EP1453027B1 (en)
JP (2) JP4634052B2 (en)
CA (1) CA2457831C (en)
DE (1) DE10307250B4 (en)

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EP1686555A1 (en) * 2005-02-01 2006-08-02 Schreiner Group GmbH & Co. KG Foil element and method of producing same
DE102014218117A1 (en) * 2014-09-10 2016-03-10 Krones Aktiengesellschaft Container with at least two adhesively adhering articles and double-sided adhesive element for use therefor
WO2022233593A1 (en) * 2021-05-04 2022-11-10 Schreiner Group Gmbh & Co. Kg Functional label and method for producing a functional label

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DE10307250B4 (en) * 2003-02-20 2007-05-16 Schreiner Gmbh & Co Kg film element

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EP1686555A1 (en) * 2005-02-01 2006-08-02 Schreiner Group GmbH & Co. KG Foil element and method of producing same
WO2006081904A2 (en) * 2005-02-01 2006-08-10 Schreiner Group Gmbh & Co. Kg Film element and method for production thereof
WO2006081904A3 (en) * 2005-02-01 2006-11-16 Schreiner Group Gmbh & Co Kg Film element and method for production thereof
DE102014218117A1 (en) * 2014-09-10 2016-03-10 Krones Aktiengesellschaft Container with at least two adhesively adhering articles and double-sided adhesive element for use therefor
WO2022233593A1 (en) * 2021-05-04 2022-11-10 Schreiner Group Gmbh & Co. Kg Functional label and method for producing a functional label

Also Published As

Publication number Publication date
CA2457831C (en) 2008-10-28
EP1453027B1 (en) 2013-09-11
US7211312B2 (en) 2007-05-01
JP4634052B2 (en) 2011-02-16
CA2457831A1 (en) 2004-08-20
EP1453027A3 (en) 2007-08-08
US20040209043A1 (en) 2004-10-21
JP2011070183A (en) 2011-04-07
DE10307250B4 (en) 2007-05-16
JP2004252463A (en) 2004-09-09
DE10307250A1 (en) 2004-09-09

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