EP0503112A1 - Mechanically removable label for commercial articles of all kinds, like bottles, etc... - Google Patents

Mechanically removable label for commercial articles of all kinds, like bottles, etc... Download PDF

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Publication number
EP0503112A1
EP0503112A1 EP91103845A EP91103845A EP0503112A1 EP 0503112 A1 EP0503112 A1 EP 0503112A1 EP 91103845 A EP91103845 A EP 91103845A EP 91103845 A EP91103845 A EP 91103845A EP 0503112 A1 EP0503112 A1 EP 0503112A1
Authority
EP
European Patent Office
Prior art keywords
label
layer
labels
coating
substance
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.)
Ceased
Application number
EP91103845A
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German (de)
French (fr)
Inventor
Hans-Heinrich Dipl.-Ing. Töpfer
Kurt Uehla
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Topfer Kulmbach GmbH
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Topfer Kulmbach GmbH
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 Topfer Kulmbach GmbH filed Critical Topfer Kulmbach GmbH
Priority to EP91103845A priority Critical patent/EP0503112A1/en
Publication of EP0503112A1 publication Critical patent/EP0503112A1/en
Ceased legal-status Critical Current

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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
    • 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
    • G09F2003/0222Features for removal or adhesion, e.g. tabs
    • 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
    • G09F2003/0223Forms or constructions recyclable
    • 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
    • G09F2003/023Adhesive
    • G09F2003/0233Resistance to humidity
    • 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
    • G09F2003/0255Forms or constructions laminated
    • 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
    • G09F2003/0272Labels for containers
    • 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
    • G09F2003/0272Labels for containers
    • G09F2003/0273Labels for bottles, flasks

Definitions

  • the invention relates to paper, aluminum, plastic films or compositions thereof, mechanically removable labels for identifying tradable objects according to the preamble of the claim.
  • Such labels are known from DE-OS 37 34 640. There, too, the back of the detachable label is acted upon by at least one substance causing the adhesion, which has a detachable first substance which can be worked into the label material and a second substance which is compared to a glass bottle or the like. Object identified by the label should have adhesion promoter properties.
  • the first substance contains a solid content between 20 and 80% as a sweat-proof separating layer substance and has a processing viscosity, measured in a Frickma flow cup, of 25 to 40 seconds.
  • the labels described there are preferably used in the beverage industry, for example on beer bottles, where they have to meet particularly high requirements. These affect both their processing or application speed, at which up to 65,000 bottles per hour have to be filled and labeled, and their storage stability under extreme weather conditions, such as strong temperature fluctuations, moisture influences and the like. more.
  • the labels of interest here are applied to objects, such as beer bottles, characterized by special problems, in particular the cleaning of the returned goods also poses considerable difficulties. So far, the labels have been washed off using heated washing water with a high water throughput.
  • the handling of the dirt load of the wastewater is correspondingly complex, whereby it is not only about the required cellulose-fiber-free filtration of this wastewater, but in particular also about the removal of metal components, in particular aluminum compounds, from the wastewater, which are increased to a greater extent by the printing, i.e. the color components of the Labels, are present.
  • the labels are removed in the bottle cleaning machine in a 2.5% NaOH solution at an average temperature of 82 oC .
  • a bottle neck film is known from DE-OS 31 37 324 an aluminum foil section coated on both sides with a protective layer, the protective layer consisting of a mixture of 1 to 40% alkali-resistant and 60 to 99% alkali-resistant binders.
  • Polyvinyl acetate, polyamide resins, melamine resins or cellulose nitrate are used as alkali-resistant binders.
  • the alkali-resistant binders specified are polyester resins made from terephthalic acid and aliphatic diols, vinyl chloride copolymers, polyvinyl butyral resins, acrylic resins or methacrylic resins or mixtures thereof.
  • the alkali-resistant coating has the advantage that it or the like is relatively easy from the bottle.
  • Object dissolves so that the actual washing-off process of the label can either be accelerated or carried out with lower washing solution volumes.
  • Both alkali-resistant and alkali-resistant binders are used here exclusively to prevent excessively long dwell times in the wash liquor even when the system is down.
  • Belly labels as well as back and chest labels can be known to contain a high proportion of aluminum.
  • the neck foils consist largely of aluminum foil.
  • the mostly multicolored printing of the labels increasingly uses gold- or silver-metal-colored components, which results in increased concentrations of preferably aluminates in the cleaning solution.
  • the aluminate is an aluminum sludge that settles down in the washing machine and is disposed of. The hydrogen is sucked upwards out of the cleaning machine.
  • the alkali-resistant coating tries to contrast the aluminum foil To keep the alkali resistant and, if possible, to remove the neck foil from the alkali like a paper without the aluminum having dissolved in the alkali.
  • special preparation properties of the back of the labels are essential for such a dry disposal in bottle cleaning.
  • the preparation properties and the interacting design of the back of the label must be such that first of all the detachment of the return labels from the objects is to be ensured as far as possible in the mechanical drying process, only then and then can wet cleaning be used to prepare the return empties for a new filling process.
  • the object on which the present invention is based is to make a particularly suitable choice of substance for the layer or solvent in which the substance of the first layer is present.
  • the labels thus formed can be dry Use a suitable washing machine to remove the condition from your object with almost no residue using a water jet or air jet, so that the subsequent liquid cleaning of the items freed from the labels can only be limited to cleaning the surface of the glass bottle inside and outside.
  • the washing solution carries no or only very little dirt with label residues, which considerably eases the associated environmental problems.
  • the previously usual lye concentrations can be reduced considerably, which also applies to the washing temperature of the return bottles already cleaned by the detergents.
  • the non-entry of the specially coated labels and foils into the lye makes it possible to reduce the up to 4% high NaOH lye to approx. 1 to 1.5%. Furthermore, the carryover of lye by the labels is eliminated, which means an additional saving of NaOH and energy.
  • the inner or first layer to be incorporated into the label material must consist of a substance which must be dispersed in solvent or water or in dissolved form, the solvents being alcohols, the carbon valences of which are at the carbon atoms C1 to C5 .
  • the solvents being alcohols, the carbon valences of which are at the carbon atoms C1 to C5 .
  • Various esters of alcohols from C1 to C4 and carboxylic acids from C2 to C4 have also proven to be quite advantageous.
  • the synthetic binders selected for the first backside coating are those based on ketone resin, polyester, polyacrylate, polyamide, polyurethane and / or natural binders based on rosin or shellac. Dispersions are produced with the addition of paraffin with a melting range of 25 to 150 o C. Only substances composed in this way for the first layer result in a sweat-proof separation, which is important both for the application of the label to an object to be identified with it and for the commercial handling of such Objects up to consumption and finally for the separation in the recycling process show advantages that were previously not accessible to the professional world.
  • the above-mentioned selection of substances ensures that the label is detached from its object mechanically independent of temperature, as well as good adhesion between the label and the adhesive layer or glue layer as the coating material for the object to be labeled.
  • the latest, stricter environmental requirements are fully taken into account, thereby contributing to the dual waste management system. If the labels do not enter the lye, the previously removed neck foils can be sent for direct recycling to restore neck foils, since there is no loss of quality with aluminum and the paper labels can also be disposed of in the recycling system.
  • the surface of the label must be such that the label cannot be moistened from the outside. This is achieved through a paper quality specially produced for this system and, if necessary, through additional finishing in the form of a special one Painting. If this were not the case, the labels in the wet bottle cellar would wet very easily, and at the moment of spraying the water jet would not separate the labels from the glue pattern, but the paper would be separated or frayed.
  • the sweat water coming from the bottle has to be carried out through the label so that the glue sets at all and undergoes a drying process.
  • the labels must also be such that they behave as equivalent to normal labels, i.e. normal alkali penetration and detachment must also be ensured in the bottle washer.
  • the lye must not be stronger than with the normal, i.e. be burdened with the previously known labels.
  • the weather process is very important. Due to the different temperatures, new condensation water is always created even when taking a cold bottle out of the fridge. Despite the repeated occurrence of condensation water processes, the water must penetrate through the label from the back to the front so that the drying process takes place again, but the glue must not pass through the release component.

Abstract

Labels are described which consist of paper, aluminium, plastics film or composites thereof. Labels of this kind serve for identifying commercial articles from the foodstuffs industry and semi-luxury goods industry, preferably for application to glass and/or plastics bottles or bottle crates of the beverages industry. They are provided with an activateable first layer, applied to the label reverse side and permitting mechanical release, and with a second coating, applied to the surface of the first, having adhesion-promoting properties with respect to the article to be identified by the label. The material of the first layer is at least partly incorporated into the label material and forms a condensation-proof release layer. The second coating imparts adhesive properties and is applied in the form of a gluing pattern.

Description

Die Erfindung bezieht sich auf aus Papier, Aluminium, Kunststoffolien oder Zusammensetzungen hiervon bestehende, mechanisch ablösbare Etiketten zur Kennzeichnung handelsfähiger Gegenstände gemäß Oberbegriff des Patentanspruchs.The invention relates to paper, aluminum, plastic films or compositions thereof, mechanically removable labels for identifying tradable objects according to the preamble of the claim.

Derartige Etiketten sind aus der DE-OS 37 34 640 bekannt. Auch dort ist die Rückseite des ablösbaren Etiketts mit wenigstens einer die Haftung bewirkenden Substanz beaufschlagt, die einen in das Etikettenmaterial einarbeitbaren, die Ablösung ermöglichenden ersten Stoff und einen zweiten Stoff aufweist, der gegenüber einer Glasflasche oder dgl. Gegenstand,der durch das Etikett näher gekennzeichnet werden soll, Haftvermittlereigenschaften aufweist. Der erste Stoff enthält als schwitzwasserfeste Trennschichtsubstanz einen Festkörperanteil zwischen 20 und 80 % und hat eine Verarbeitungsviskosität, gemessen in einem Frickma-Durchlaufbecher,von 25 bis 40 sec.Such labels are known from DE-OS 37 34 640. There, too, the back of the detachable label is acted upon by at least one substance causing the adhesion, which has a detachable first substance which can be worked into the label material and a second substance which is compared to a glass bottle or the like. Object identified by the label should have adhesion promoter properties. The first substance contains a solid content between 20 and 80% as a sweat-proof separating layer substance and has a processing viscosity, measured in a Frickma flow cup, of 25 to 40 seconds.

Die dort beschriebenen Etiketten finden vorzugsweise Anwendung in der Getränkeindustrie, etwa auf Bierflaschen, wobei sie besonders hohen Anforderungen genügen müssen. Diese betreffen sowohl ihre Verarbeitungs- bzw. Aufbringungsgeschwindigkeit, bei der bis zu 65 000 Flaschen pro Stunde abgefüllt und etikettiert werden müssen, als auch ihre Lagerungsbeständigkeit bei extremen Witterungsverhältnissen, wie starken Temperaturschwankungen, Feuchtigkeitseinflüssen u.dgl. mehr.The labels described there are preferably used in the beverage industry, for example on beer bottles, where they have to meet particularly high requirements. These affect both their processing or application speed, at which up to 65,000 bottles per hour have to be filled and labeled, and their storage stability under extreme weather conditions, such as strong temperature fluctuations, moisture influences and the like. more.

Nicht nur die Aufbringung der hier interessierenden Etiketten auf Gegenstände, wie Bierflaschen, ist durch spezielle Problematiken gekennzeichnet, insbesondere auch die Reinigung des Rückgutes wirft erhebliche Schwierigkeiten auf. Bisher erfolgte das Abwaschen der Etiketten mittels erhitzter Waschlauge bei einem hohen Wasserdurchsatz. Entsprechend aufwendig ist die Handhabung der Schmutzfracht des Abwassers, wobei es nicht nur um die erforderliche zellulosefaserfreie Filtration dieser Abwässer geht, sondern insbesondere auch um die Beseitigung von Metallkomponenten, insbesondere Aluminiumverbindungen aus dem Abwasser, die in erhöhtem Maße durch den Aufdruck, also die Farbkomponenten der Etiketten, vorhanden sind. Die Etiketten werden in der Flaschenreinigungsmaschine in einer ca. 2,5-prozentigen NaOH-Lösung bei einer Temperatur von durchschnittlich 82 oC abgelöst. Bei diesem Ablösevorgang gehen selbstverständlich Papierstrichanteile und damit auch Farbe und Lackanteile von der Bedruckung in die Lauge über. Etiketten belasten somit die Lauge mit Schmutzfrachten, die nach dem CSB (chemischer Sauerstoffbedarf) bewertet werden. Die Brauereien wiederum müssen die Abwasserabgaben nach der Höhe des CSB bezahlen.Not only is the application of the labels of interest here to objects, such as beer bottles, characterized by special problems, in particular the cleaning of the returned goods also poses considerable difficulties. So far, the labels have been washed off using heated washing water with a high water throughput. The handling of the dirt load of the wastewater is correspondingly complex, whereby it is not only about the required cellulose-fiber-free filtration of this wastewater, but in particular also about the removal of metal components, in particular aluminum compounds, from the wastewater, which are increased to a greater extent by the printing, i.e. the color components of the Labels, are present. The labels are removed in the bottle cleaning machine in a 2.5% NaOH solution at an average temperature of 82 oC . During this detachment process, of course, parts of the paper streak and thus also the amount of paint and varnish pass from the printing into the alkali. Labels therefore contaminate the alkali with dirt loads that are assessed according to the COD (chemical oxygen demand). The breweries in turn have to pay the wastewater taxes according to the amount of the COD.

Aus der DE-OS 31 37 324 ist eine Flaschenhalsfolie bekannt aus einem beidseitig mit einer Schutzschicht beschichteten Aluminiumfolienabschnitt, wobei die Schutzschicht aus einer Mischung von 1 bis 40 % laugenunbeständigen und 60 bis 99 % laugenbeständigen Bindemitteln besteht. Als Laugenunbeständige Bindemittel finden dort Polyvinylacetat, Polyamidharze, Melaminharze oder Cellulosenitrat Anwendung. Die angegebenen laugenbeständigen Bindemittel sind nach diesem stand der Technik Polyesterharze aus Terephthalsäure und aliphatischem Diolen, Vinylchlorid-Mischpolymerisate, Polyvinylbutyralharze, Acrylharze oder Methacrylharze bzw. Mischungen hiervon. Die laugenunbeständige Beschichtung hat den Vorteil, daß sie sich relativ leicht von der Flasche o.dgl. Gegenstand löst, so daß der eigentliche Abwaschvorgang des Etiketts entweder beschleunigt oder mit geringeren Waschlösungsvolumina durchgeführt werden kann. Der Einsatz von sowohl laugenunbeständigen als auch laugenbeständigen Bindemitteln erfolgt hier ausschließlich, um zu lange Verweilzeiten in der Waschlauge auch bei Stillstandszeiten der Anlage zu verhindern. Sowohl Bauchetiketten als auch Rücken- und Brustetiketten können bekanntlich einen hohen Aluminiumanteil enthalten. Die Halsfolien bestehen zum größten Teil ausschließlich aus Aluminiumfolie. Die meist mehrfarbige Bedruckung der Etiketten verwendet in steigendem Umfang gold- oder silbermetallfarbene Komponenten, wodurch sich erhöhte Anreicherungen an vorzugsweise Aluminaten in der Reinigungslauge zwingend ergeben. Das Aluminat ist ein Aluminiumschlamm, der sich in der Waschmaschine nach unten absetzt und entsorgt wird. Der Wasserstoff wird aus der Reinigungsmaschine nach oben abgesaugt. Damit das Aluminium aufgelöst werden kann, wird pro kg Aluminium 1,48 kg NaOH benötigt und insbesondere die erforderliche Energie. Durch die Absaugung des Wasserstoffs werden ca. 25 % der Energie mit abgesaugt. Durch die laugenbeständige Beschichtung wird versucht, die Aluminiumfolie gegenüber der Lauge resistent zu halten und möglichst die Halsfolie wie ein Papier aus der Lauge wieder auszutragen, ohne daß sich das Aluminium in der Lauge gelöst hat.A bottle neck film is known from DE-OS 31 37 324 an aluminum foil section coated on both sides with a protective layer, the protective layer consisting of a mixture of 1 to 40% alkali-resistant and 60 to 99% alkali-resistant binders. Polyvinyl acetate, polyamide resins, melamine resins or cellulose nitrate are used as alkali-resistant binders. According to this state of the art, the alkali-resistant binders specified are polyester resins made from terephthalic acid and aliphatic diols, vinyl chloride copolymers, polyvinyl butyral resins, acrylic resins or methacrylic resins or mixtures thereof. The alkali-resistant coating has the advantage that it or the like is relatively easy from the bottle. Object dissolves so that the actual washing-off process of the label can either be accelerated or carried out with lower washing solution volumes. Both alkali-resistant and alkali-resistant binders are used here exclusively to prevent excessively long dwell times in the wash liquor even when the system is down. Belly labels as well as back and chest labels can be known to contain a high proportion of aluminum. The neck foils consist largely of aluminum foil. The mostly multicolored printing of the labels increasingly uses gold- or silver-metal-colored components, which results in increased concentrations of preferably aluminates in the cleaning solution. The aluminate is an aluminum sludge that settles down in the washing machine and is disposed of. The hydrogen is sucked upwards out of the cleaning machine. So that the aluminum can be dissolved, 1.48 kg NaOH is required per kg aluminum and in particular the energy required. By extracting the hydrogen, approx. 25% of the energy is also extracted. The alkali-resistant coating tries to contrast the aluminum foil To keep the alkali resistant and, if possible, to remove the neck foil from the alkali like a paper without the aluminum having dissolved in the alkali.

Ein geeignetes trockenes Beseitigungsverfahren von Etiketten von Rücklaufgut in Brauereien o.dgl., also die Ablösung derselben vor dem eigentlichen Naßwaschvorgang, würde den bisherigen Laugenaufwand erheblich reduzieren und damit die sich hierdurch ergebenden kostenaufwendigen Reinigungsprobleme für die Schmutzwasserfraktion. Mit dem eingangs genannten Stand der Technik wurde erkannt, daß wesentlich für eine solche Trockenentsorgung bei der Flaschenreinigung spezielle Präparationseigenschaften der Rückseiten der Etiketten sind. Die Präparationseigenschaften und die damit zusammenwirkende Gestaltung der Etikettenrückseite muß eine solche sein, daß zunächst im mechanischen Trockenverfahren eine möglichst weitgehende Ablösung der Rücklaufetiketten von den Gegenständen sicherzustellen ist, um erst dann und anschließend hieran mit einer Naßreinigung das Rücklaufleergut für einen neuen Abfüllvorgang vorbereiten zu können.A suitable dry method for removing labels from returned goods in breweries or the like, i.e. removing them before the actual wet washing process, would considerably reduce the previous amount of alkali and thus the costly cleaning problems for the dirty water fraction. With the prior art mentioned at the outset, it was recognized that special preparation properties of the back of the labels are essential for such a dry disposal in bottle cleaning. The preparation properties and the interacting design of the back of the label must be such that first of all the detachment of the return labels from the objects is to be ensured as far as possible in the mechanical drying process, only then and then can wet cleaning be used to prepare the return empties for a new filling process.

Auch bei der vorliegenden Erfindung wird daher von einer Doppelbeschichtung der Etikettenrückseite ausgegangen, und zwar im Sinne der eingangs erwähnten DE-OS 37 34 640.In the present invention, too, it is assumed that the back of the label has a double coating, in the sense of the aforementioned DE-OS 37 34 640.

Die Aufgabe, die der vorliegenden Erfindung zugrundeliegt, ist, hierbei eine besonders geeignete Stoffauswahl für die Schicht bzw. das Lösungsmittel, in der bzw. dem der Stoff der ersten Schicht vorliegt, zu treffen.The object on which the present invention is based is to make a particularly suitable choice of substance for the layer or solvent in which the substance of the first layer is present.

Die im Kennzeichen des Patentanspruchs angegebenen Merkmale lösen erfindungsgemäß diese Aufgabe.The features specified in the characterizing part of the patent claim achieve this object according to the invention.

Die so ausgebildeten Etiketten lassen sich im trockenen Zustand mittels einer geeigneten Abspritzmaschine durch Wasserstrahl oder Luftstrahl nahezu rückstandslos von ihrem Gegenstand lösen, so daß die nachgeschaltete Flüssigreinigung der von den Etiketten befreiten Gegenstände sich ausschließlich auf die Oberflächenreinigung bei der Glasflasche innen und außen beschränken kann. Die Waschlösung trägt keine bzw. eine nur sehr geringe Schmutzfracht mit Etikettenresten, was die damit verbundene Umweltproblematik ganz erheblich erleichtert. Zusätzlich können die bisher üblichen Laugenkonzentrationen beträchtlich gesenkt werden, was darüber hinaus auch für die Waschtemperatur der von den Etiektten bereits gereinigten Rücklaufflaschen gilt. Durch den Nichteintrag der speziell beschichteten Etiketten und Folien in die Lauge ist es möglich, die bis zu 4%-ig hohen NaOH-Laugen auf ca. 1 bis 1,5 % zu reduzieren. Weiterhin entfällt die Laugenverschleppung durch die Etiketten, was eine zusätzliche Einsparung von NaOH und Energie bedeutet.The labels thus formed can be dry Use a suitable washing machine to remove the condition from your object with almost no residue using a water jet or air jet, so that the subsequent liquid cleaning of the items freed from the labels can only be limited to cleaning the surface of the glass bottle inside and outside. The washing solution carries no or only very little dirt with label residues, which considerably eases the associated environmental problems. In addition, the previously usual lye concentrations can be reduced considerably, which also applies to the washing temperature of the return bottles already cleaned by the detergents. The non-entry of the specially coated labels and foils into the lye makes it possible to reduce the up to 4% high NaOH lye to approx. 1 to 1.5%. Furthermore, the carryover of lye by the labels is eliminated, which means an additional saving of NaOH and energy.

Erfindungsgemäß wurde überraschend gefunden, daß die innere oder erste in das Etikettenmaterial einzuarbeitende Schicht aus einem Stoff bestehen muß, der in Lösungsmittel oder Wasser dispergiert oder in gelöster Form vorliegen muß, wobei die Lösungsmittel Alkohole sein sollten, deren Kohlenstoffvalenzen bei den Kohlenstoffatomen C1 bis C5 liegen. Anstelle von Alkohol ist es erfindungsgemäß jedoch auch möglich, Ketone der Kohlenstoffkennung C3 bis C5 zu verwenden oder aliphatische oder cycloaliphatische Kohlenwasserstoffe von C5 bis C12 und aromatische Kohlenwasserstoffe von C5 bis C9. Auch haben sich verschiedene Ester von Alkoholen von C1 bis C4 und Carbonsäuren von C2 bis C4 als durchaus vorteilhaft erwiesen. Die ausgewählten synthetischen Bindemittel für die erste Rückseitenbeschichtung sind solche auf der Basis von Ketonharz, Polyester, Polyacrylat, Polyamid, Polyurethan und/oder natürliche Bindemittel auf der Basis von Kolophoniumharz oder Schellack. Dispersionen werden hergestellt unter Zugabe von Paraffin mit einem Schmelzbereich von 25 bis 150 oC. Nur derart zusammengesetzte Stoffe für die erste Schicht ergeben eine schwitzwasserfeste Trennung, die sowohl für die Aufbringung des Etiketts auf einen hiermit zu kennzeichnenden Gegenstand als auch bei der handelsüblichen Handhabung solcher Gegenstände bis zum Verbrauch und schließlich für die Abtrennung im Recyclingverfahren Vorteile zeigen, wie sie bisher der Fachwelt nicht zugänglich waren. Die vorstehend genannte Stoffauswahl stellt eine mechanisch temperaturunabhängige Ablösung des Etiketts von seinem Gegenstand sicher gleichermaßen wie eine gute Verklebung zwischen Etikett und Haftvermittlerschicht bzw. Leimschicht als Beschichtungsmaterial zum zu etikettierenden Gegenstand hin. Den neuesten, verschärften Umweltanforderungen wird voll Rechnung getragen und damit ein Beitrag zum dualen Abfall-Wirtschaftssystem geschaffen. Durch den Nichteintrag der Etiketten in die Lauge können die vorab abgelösten Halsfolien dem direkten Recycling zur Wiederherstellung von Halsfolien zugeführt werden, da es bei Aluminium keinen Qualitätsverlust gibt und die Papieretiketten ebenfalls im Recyclingsystem entsorgt werden können.According to the invention, it has surprisingly been found that the inner or first layer to be incorporated into the label material must consist of a substance which must be dispersed in solvent or water or in dissolved form, the solvents being alcohols, the carbon valences of which are at the carbon atoms C1 to C5 . Instead of alcohol, however, it is also possible according to the invention to use ketones of the carbon code C3 to C5 or aliphatic or cycloaliphatic hydrocarbons from C5 to C12 and aromatic hydrocarbons from C5 to C9. Various esters of alcohols from C1 to C4 and carboxylic acids from C2 to C4 have also proven to be quite advantageous. The synthetic binders selected for the first backside coating are those based on ketone resin, polyester, polyacrylate, polyamide, polyurethane and / or natural binders based on rosin or shellac. Dispersions are produced with the addition of paraffin with a melting range of 25 to 150 o C. Only substances composed in this way for the first layer result in a sweat-proof separation, which is important both for the application of the label to an object to be identified with it and for the commercial handling of such Objects up to consumption and finally for the separation in the recycling process show advantages that were previously not accessible to the professional world. The above-mentioned selection of substances ensures that the label is detached from its object mechanically independent of temperature, as well as good adhesion between the label and the adhesive layer or glue layer as the coating material for the object to be labeled. The latest, stricter environmental requirements are fully taken into account, thereby contributing to the dual waste management system. If the labels do not enter the lye, the previously removed neck foils can be sent for direct recycling to restore neck foils, since there is no loss of quality with aluminum and the paper labels can also be disposed of in the recycling system.

Schließlich sind hinsichtlich der Qualitätsanforderungen an das Papier und an die Etikettenoberfläche noch folgende Kriterien wichtig:Finally, the following criteria are important with regard to the quality requirements for the paper and the label surface:

Das Etikett muß an der Oberfläche so beschaffen sein, daß möglichst keine Befeuchtung des Etiketts von außen her erfolgen kann. Dies wird erzielt durch eine speziell für dieses System gefertigte Papierqualität und gegebenenfalls noch durch eine zusätzliche Veredelung in Form einer speziellen Lackierung. Wäre dies nicht der Fall, würden die Etiketten im feuchten Flaschenkeller sehr leicht durchfeuchten, und in dem Moment der Abspritzung würde der Wasserstrahl nicht die Etiketten vom Leimbild trennen, sondern das Papier würde in sich getrennt bzw. zerfasert werden.The surface of the label must be such that the label cannot be moistened from the outside. This is achieved through a paper quality specially produced for this system and, if necessary, through additional finishing in the form of a special one Painting. If this were not the case, the labels in the wet bottle cellar would wet very easily, and at the moment of spraying the water jet would not separate the labels from the glue pattern, but the paper would be separated or frayed.

Trotz der vorgenannten Eigenschaften muß das von der Flasche kommende Schwitzwasser durch das Etikett nach außen getragen werden, damit überhaupt der Leim abbindet und einen Trocknungsprozeß erfährt. Die Etiketten müssen auch so beschaffen sein, daß sie sich gleichwertig wie normale Etiketten verhalten, d.h. auch in der Flaschenreinigungsmaschine muß eine normale Laugendurchdringung und Ablösung gewährleistet sein. Die Lauge darf durch diese speziellen Etiketten nicht stärker als bei den normalen, d.h. bei den bisher bekannten Etiketten belastet werden.Despite the aforementioned properties, the sweat water coming from the bottle has to be carried out through the label so that the glue sets at all and undergoes a drying process. The labels must also be such that they behave as equivalent to normal labels, i.e. normal alkali penetration and detachment must also be ensured in the bottle washer. The lye must not be stronger than with the normal, i.e. be burdened with the previously known labels.

Letztlich ist der Witterungsprozeß sehr bedeutsam. Durch die verschiedenen Temperaturen entsteht immer wieder neues Schwitzwasser, z.B. auch beim Herausnehmen einer kalten Flasche aus dem Kühlschrank. Trotz der immer wieder auftretenden Schwitzwasserprozesse muß zwar das Wasser durch das Etikett von hinten nach vorn durchdringen, damit der Trocknungsprozeß wiederum erfolgt, dennoch darf der Leim nicht mit durch die Release-Komponente hindurchtreten.Ultimately, the weather process is very important. Due to the different temperatures, new condensation water is always created even when taking a cold bottle out of the fridge. Despite the repeated occurrence of condensation water processes, the water must penetrate through the label from the back to the front so that the drying process takes place again, but the glue must not pass through the release component.

Claims (1)

Aus Papier, Aluminium, Kunststoffolie oder Zusammensetzungen hiervon bestehendes, mechanisch ablösbares Etikett zur Kennzeichnung handelsfähiger Gegenstände der Nahrungs- und Genußmittelindustrie, vorzugsweise zum Aufbringen auf Glas- und/oder Kunststoff-Flaschen bzw. -Flaschenkästen der Getränkeindustrie, mit einer auf dessen Rückseite aufgetragenen aktivierbaren, die mechanische Ablösung ermöglichenden ersten Schicht und mit einer auf deren Rückseite aufgebrachten zweiten, gegenüber dem mit dem Etikett zu kennzeichnenden Gegenstand Haftvermittlereigenschaften aufweisenden Beschichtung, wobei der Stoff der ersten Schicht eine wenigstens teilweise in das Etikettenmaterial einbringbare, schwitzwasserfeste Trennschicht bildet und die die Klebeigenschaften vermittelnde zweite Beschichtung in Form eines Beleimungsmusters aufgebracht ist,
dadurch gekennzeichnet, daß die erste Schicht aus einem Stoff, der in Lösungsmittel oder Wasser gelöst oder dispergiert ist, vorliegt, wobei als Lösungsmittel Alkohol mit einer Kennzeichnung bezüglich seiner Kohlenstoffatome von C1 bis C5, Ketone von C3 bis C5, aliphatische oder cycloaliphatische Kohlenwasserstoffe von C5 bis C12 und aromatische Kohlenwasserstoffe von C5 bis C9 sowie verschiedene Ester von Alkoholen von C1 bis 4 und Carbonsäuren von C2 bis C4 verwendbar sind, in denen ein synthetisches Bindemittel auf der Basis von Ketonharz, Polyester, Polyacrylat, Polyamid, Polyurethan oder ein natürliches Bindemittel auf der Basis von Kolophoniumharz oder Schellack gelöst ist und in dem Paraffine mit einem Schmelzbereich von 35 bis 150 oC dispergiert sind, und daß dieser erste Stoff, der eine schwitzwasserfeste Trennschicht vorgibt, aus der Kombination einer geeigneten Release- und Haftkomponente resultiert, wobei die Releasekomponente so eingestellt ist, daß eine mechanisch temperaturunabhängige Trennung erfolgen kann, jedoch gleichtzeitig die Haftkomponente mit dem Etikettenmaterial, wie der Papierfaser, sowie dem handelsfähigen Gegenstand gut verklebt keine Verankerungen aufweist.
Made of paper, aluminum, plastic film or compositions thereof, a mechanically removable label for identifying tradable objects in the food and beverage industry, preferably for application to glass and / or plastic bottles or bottle crates from the beverage industry, with an activatable label applied to the back of the label , the mechanical detachment of the first layer and with a second coating applied to the back of it, which has adhesive properties compared to the object to be labeled with the label, the material of the first layer forming an at least partially insertable into the label material, condensation-resistant and which mediates the adhesive properties second coating is applied in the form of a gluing pattern,
characterized in that the first layer consists of a substance which is dissolved or dispersed in solvent or water, the solvent being alcohol with a labeling with respect to its carbon atoms from C1 to C5, ketones from C3 to C5, aliphatic or cycloaliphatic hydrocarbons from C5 to C12 and aromatic hydrocarbons from C5 to C9 and various esters of alcohols from C1 to 4 and carboxylic acids from C2 to C4, in which a synthetic binder based on ketone resin, polyester, polyacrylate, polyamide, polyurethane or a natural binder the base of rosin or shellac is dissolved and in which paraffins with a melting range of 35 to 150 o C are dispersed, and that this first substance, which specifies a condensation-resistant separation layer, from the combination of a suitable release and adhesive component results, the release component being set so that a mechanical temperature-independent separation can take place, but at the same time the adhesive component with the label material, such as the paper fiber, as well as the tradable object has no anchors well bonded.
EP91103845A 1991-03-13 1991-03-13 Mechanically removable label for commercial articles of all kinds, like bottles, etc... Ceased EP0503112A1 (en)

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EP91103845A EP0503112A1 (en) 1991-03-13 1991-03-13 Mechanically removable label for commercial articles of all kinds, like bottles, etc...

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EP91103845A EP0503112A1 (en) 1991-03-13 1991-03-13 Mechanically removable label for commercial articles of all kinds, like bottles, etc...

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EP0503112A1 true EP0503112A1 (en) 1992-09-16

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19522568A1 (en) * 1995-06-26 1997-01-02 Henkel Kgaa Adhesive system for wrap-around labels for metal, glass, plastics etc containers
WO1997035291A1 (en) * 1996-03-20 1997-09-25 Heineken Technical Services B.V. Transfer label comprising a backing layer and a transfer layer, container comprising such a transfer layer and method of removing a transfer layer from a container
DE19618549A1 (en) * 1996-05-09 1997-11-13 Henkel Kgaa Hot melt adhesive system for easily removed wrap-round label
EP0824250A1 (en) * 1996-08-12 1998-02-18 Heineken Technical Services B.V. Transfer label, comprising a backing layer and a transfer layer, container comprising such a transfer layer and method of removing a transfer layer from a container
US5985074A (en) * 1995-06-26 1999-11-16 Henkel Kommanditgesellschaft Auf Aktien Adhesive system for sticking all-round labels
US6224923B1 (en) 1996-08-09 2001-05-01 Heinz Stemmler, Jr. Method of coating long-keeping sausages and hard cheeses
DE102004063348A1 (en) * 2004-12-23 2006-07-06 Ribbeck Gmbh Personalizing process for drink crates involves supplying crate to be personalized, and applying personalized foil to at least one outer wall of crate
US9051495B2 (en) 2011-02-07 2015-06-09 Nulabel Technologies, Inc. Fluid activatable adhesives and fluids for activating same for use with liner-free labels
US9109144B2 (en) 2013-01-10 2015-08-18 Nulabel Technologies, Inc. Fluid activatable adhesives for glue-free, liner-free, labels for glass and plastic substrates and methods of use thereof
US9254936B2 (en) 2014-06-20 2016-02-09 Nulabel Technologies, Inc. Fluid activatable adhesive for glue-free, liner-free, labels for glass and plastic substrates and methods of use thereof
US9777196B2 (en) 2015-12-22 2017-10-03 Nulabel Technologies, Inc. Fluid activatable adhesives for glue-free, liner-free, labels for glass and plastic substrates and methods of use thereof
US9911367B2 (en) 2015-05-12 2018-03-06 Actega North America Technologies, Inc. Thin film adhesive labels and methods of making thereof

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EP0075340A1 (en) * 1981-09-19 1983-03-30 Haendler & Natermann GmbH Bottle-neck sheet
EP0312037A2 (en) * 1987-10-13 1989-04-19 Töpfer Kulmbach GmbH Mechanically removable label
DE4003106A1 (en) * 1989-02-03 1990-08-09 Mitsubishi Paper Mills Ltd Carrier for alkali-removable label

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DE2825667A1 (en) * 1978-06-12 1979-12-20 Guenther Wegele Adhesive and detachable label esp. for returnable bottles - consists of paper with thermoplastics coating removed by raising temp.
EP0075340A1 (en) * 1981-09-19 1983-03-30 Haendler & Natermann GmbH Bottle-neck sheet
EP0312037A2 (en) * 1987-10-13 1989-04-19 Töpfer Kulmbach GmbH Mechanically removable label
DE4003106A1 (en) * 1989-02-03 1990-08-09 Mitsubishi Paper Mills Ltd Carrier for alkali-removable label

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19522568A1 (en) * 1995-06-26 1997-01-02 Henkel Kgaa Adhesive system for wrap-around labels for metal, glass, plastics etc containers
US5985074A (en) * 1995-06-26 1999-11-16 Henkel Kommanditgesellschaft Auf Aktien Adhesive system for sticking all-round labels
WO1997035291A1 (en) * 1996-03-20 1997-09-25 Heineken Technical Services B.V. Transfer label comprising a backing layer and a transfer layer, container comprising such a transfer layer and method of removing a transfer layer from a container
US6379761B1 (en) 1996-03-20 2002-04-30 Heineken Technical Services B.V. Transfer label comprising a backing layer and a transfer layer, container comprising such a transfer layer and method of removing a transfer layer from a container
CN1121670C (en) * 1996-03-20 2003-09-17 海内肯技术服务公司 Transfer label comprising a backing layer and a transfer layer, container comprising such a transfer layer and method of removing a transfer layer from a container
DE19618549A1 (en) * 1996-05-09 1997-11-13 Henkel Kgaa Hot melt adhesive system for easily removed wrap-round label
US6224923B1 (en) 1996-08-09 2001-05-01 Heinz Stemmler, Jr. Method of coating long-keeping sausages and hard cheeses
EP0824250A1 (en) * 1996-08-12 1998-02-18 Heineken Technical Services B.V. Transfer label, comprising a backing layer and a transfer layer, container comprising such a transfer layer and method of removing a transfer layer from a container
DE102004063348A1 (en) * 2004-12-23 2006-07-06 Ribbeck Gmbh Personalizing process for drink crates involves supplying crate to be personalized, and applying personalized foil to at least one outer wall of crate
US9051495B2 (en) 2011-02-07 2015-06-09 Nulabel Technologies, Inc. Fluid activatable adhesives and fluids for activating same for use with liner-free labels
US9109144B2 (en) 2013-01-10 2015-08-18 Nulabel Technologies, Inc. Fluid activatable adhesives for glue-free, liner-free, labels for glass and plastic substrates and methods of use thereof
US9508272B2 (en) 2013-01-10 2016-11-29 Nulabel Technologies, Inc. Fluid activatable adhesives for glue-free, liner-free labels for glass and plastic substrates and methods of use thereof
US9254936B2 (en) 2014-06-20 2016-02-09 Nulabel Technologies, Inc. Fluid activatable adhesive for glue-free, liner-free, labels for glass and plastic substrates and methods of use thereof
US9911367B2 (en) 2015-05-12 2018-03-06 Actega North America Technologies, Inc. Thin film adhesive labels and methods of making thereof
US10586472B2 (en) 2015-05-12 2020-03-10 Actega North America Technologies, Inc. Thin film adhesive labels and methods of making thereof
US9777196B2 (en) 2015-12-22 2017-10-03 Nulabel Technologies, Inc. Fluid activatable adhesives for glue-free, liner-free, labels for glass and plastic substrates and methods of use thereof

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