DE102005051640B4 - Packaging bags, in particular for chocolate goods - Google Patents
Packaging bags, in particular for chocolate goods Download PDFInfo
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- DE102005051640B4 DE102005051640B4 DE200510051640 DE102005051640A DE102005051640B4 DE 102005051640 B4 DE102005051640 B4 DE 102005051640B4 DE 200510051640 DE200510051640 DE 200510051640 DE 102005051640 A DE102005051640 A DE 102005051640A DE 102005051640 B4 DE102005051640 B4 DE 102005051640B4
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/02—Bags or like containers made of paper and having structural provision for thickness of contents with laminated walls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
- B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
- B65D81/267—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants the absorber being in sheet form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
- B32B2255/205—Metallic coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/514—Oriented
- B32B2307/518—Oriented bi-axially
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
- B32B2307/7246—Water vapor barrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/728—Hydrophilic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/40—Closed containers
- B32B2439/46—Bags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/60—Containers, packaging elements or packages, specially adapted for particular articles or materials for sweets or like confectionery products
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Wrappers (AREA)
- Laminated Bodies (AREA)
Abstract
Verpackungsbeutel, insbesondere für Schokoladenwaren, der aus einem heißsiegelbaren Kaschierverbund (1) gebildet und luftdicht verschlossen ist, wobei der Kaschierverbund (1) eine außen liegende Folie (2) mit einer Wasserdampf-Barriereschicht und eine durch Kaschieren mit der außen liegenden Folie (2) verbundene innen liegende Extrusionsfolie (4) aufweist und wobei die Extrusionsfolie (4) eine Feuchtigkeit absorbierende Polymerschicht (5) mit einer Beimischung eines superabsorbierenden Polymers aufweist.Packaging bag, in particular for chocolate goods, which is formed from a heat-sealable laminating compound (1) and hermetically sealed, wherein the laminating composite (1) has an outer film (2) with a water vapor barrier layer and a laminate with the outer film (2) and wherein the extrusion film (4) comprises a moisture absorbing polymer layer (5) with an admixture of a superabsorbent polymer.
Description
Die Erfindung betrifft einen Verpackungsbeutel, insbesondere für Schokoladenwaren, der aus einem heißsiegelbaren Kaschierverbund gebildet und luftdicht verschlossen ist, sowie eine Verpackungsfolie zur Herstellung eines solchen Verpackungsbeutels. Trotz des luftdichten Verschlusses besteht bei der Lagerung von Schokoladenwaren wie beispielsweise Schokoladenkeksen oder Pralinen die Gefahr, dass die Oberfläche aufgrund der bei dem Verschluss des Verpackungsbeutels im Inneren vorhandenen Luftfeuchtigkeit oder der von den Produkten abgegebenen Feuchtigkeit matt wird und grau anläuft. Bereits geringfügige Oberflächenveränderungen werden von den Verbrauchern als Mangel wahrgenommen.The The invention relates to a packaging bag, in particular for chocolate goods, made of a heat-sealable Kaschierverbund formed and hermetically sealed, as well as a Packaging film for producing such a packaging bag. Despite the airtight seal, there is storage of Chocolate goods such as chocolate biscuits or pralines the danger of the surface due to the closure of the packaging bag inside existing humidity or that emitted by the products Moisture becomes dull and starts to gray. Already minor surface changes are perceived by consumers as a defect.
Ein
aus einer dicken thermoformbaren Folie hergestellter Behälter mit
einer Flüssigkeit
absorbierenden Zwischenschicht ist aus der Druckschrift
Die
Die
Druckschrift
Aus
der
Die
Die
Druckschrift
Der Erfindung liegt die Aufgabe zugrunde, einen aus einer Folie bestehenden Verpackungsbeutel anzugeben, bei dem eine Beeinträchtigung des Verpackungsgutes durch Luftfeuchtigkeit im Verpackungsbeutel vermieden wird. Insbesondere soll bei Schokoladenwaren ein Anlaufen der Schokoladenoberfläche verhindert werden. Des Weiteren soll eine Verpackungsfolie angegeben werden, die zur Herstellung eines solchen Verpackungsbeutels vorgesehen ist.Of the Invention is based on the object consisting of a film Specify packaging bag in which an impairment of the packaged goods due to humidity in the packaging bag is avoided. In particular, should start with chocolate goods the chocolate surface be prevented. Furthermore, a packaging film is specified provided for producing such a packaging bag is.
Die erfindungsgemäße Aufgabe wird von einem Verpackungsbeutel gelöst, der aus einem heißsiegelbaren Kaschierverbund gebildet und luftdicht verschlossen ist, wobei der Kaschierverbund eine außen liegende Folie mit einer Wasserdampf-Barriereschicht und eine durch Kaschieren mit der außen liegenden Folie verbundene innen liegende Extrusionsfolie aufweist und wobei die Extrusionsfolie eine Feuchtigkeit absorbierende Polymerschicht mit einer Beimischung eines superabsorbierenden Polymers aufweist. Die Feuchtigkeit der Luft im Verpackungsbeutel wird über die gesamte zur Beutelinnenseite weisende Oberfläche des Kaschierverbundes aufgenommen. Durch die Reduzierung der Luftfeuchtigkeit kann eine Beeinträchtigung des Verpackungsguts, beispielsweise eine Veränderung der Oberfläche und insbesondere ein Anlaufen von Schokoladenwaren, verhindert werden. Die gesamte Feuchtigkeitsmenge, die über den Kaschierverbund verteilt aufgenommen wird, ist gering und führt nicht zu einer wesentlichen Veränderung der Struktur des Kaschierverbundes. Der Verpackungsbeutel kann aus zwei randseitig durch Heißsiegeln miteinander verbundene Lagen des Kaschierverbundes oder durch einen randseitig versiegelten gefalteten Bogen des Kaschierverbundes gefertigt sein. Gegenstand der Erfindung ist auch eine Verpackungsfolie gemäß Anspruch 10 zur Herstellung des Verpackungsbeutels.The object of the invention is achieved by a packaging bag which is formed from a heat-sealable Kaschierverbund and hermetically sealed, wherein the Kaschierverbund has an outer film with a water vapor barrier layer and an associated by lamination with the outer film inside extrusion film and wherein the extrusion film a moisture absorbing polymer layer having an admixture of a superabsorbent polymer. The moisture of the air in the packaging bag is over the entire to the inside of the bag facing surface of Kaschierverbundes added. By reducing the humidity can be a deterioration of the packaged goods, such as a change in the surface and in particular a tarnishing of chocolate goods are prevented. The total amount of moisture that is absorbed distributed over the Kaschierverbund is small and does not lead to a significant change in the structure of the laminated composite. The packaging bag can be made of two layers of the laminating composite which are joined together at the edge by heat-sealing or by a folded sheet of the laminating composite sealed at the edge. The invention also provides a packaging film according to claim 10 for the production of the packaging bag.
Aufgrund der typischerweise zu absorbierenden Menge an Feuchtigkeit ist eine erfindungsgemäße Kaschierfolie mit einem maximalen Wasseraufnahmevermögen zwischen 0,1 g/m2 und 10 g/m2, vorzugsweise zwischen 0,6 g/m2 und 2 g/m2 ausreichend. Bei der Festlegung der Menge des superabsorbierenden Polymers und der Festlegung der Foliendicke ist zu berücksichtigen, dass einerseits eine zuverlässige Absorption der Feuchtigkeit gewährleistet sein soll und andererseits die Herstellungskosten für die innen liegende Extrusionsfolie möglichst gering zu halten sind.Due to the amount of moisture typically to be absorbed, a laminating film according to the invention with a maximum water absorption capacity between 0.1 g / m 2 and 10 g / m 2 , preferably between 0.6 g / m 2 and 2 g / m 2 is sufficient. When determining the amount of superabsorbent polymer and the determination of the film thickness is to be considered that on the one hand, a reliable absorption of moisture should be guaranteed and on the other hand, the manufacturing costs for the inner extrusion film are to be minimized.
In einer bevorzugten Ausführung der Erfindung besteht die Feuchtigkeit absorbierende Polymerschicht der Extrusionsfolie aus einem superabsorbierenden Polymer und einem Polymer aus der Gruppe Polyethylen, Polypropylen, Ethylen-Vinylacetat, Polyamid, Ethylen-Vinylalkohol, einer Mischung oder einem Copolymer der Polymere dieser Gruppe. Die genannten Polymere zeichnen sich durch eine gute Extrudierbarkeit aus. Feuchtigkeit diffundiert in die absorbierende Polymerschicht ein und wird von dem superabsorbierenden Polymer aufgenommen. Als superabsorbierende Polymere können Polyacrylat-Polymere, insbesondere Natriumpolyacrylat, eingesetzt werden, da diese in einer Polymermischung biologisch unbedenklich sind und sich leicht compoundieren und extrudieren lassen.In a preferred embodiment The invention consists of the moisture absorbing polymer layer the extrusion film of a superabsorbent polymer and a Polymer from the group polyethylene, polypropylene, ethylene-vinyl acetate, Polyamide, ethylene-vinyl alcohol, a mixture or a copolymer the polymers of this group. The polymers mentioned are distinguished by a good extrudability. Moisture diffuses into the absorbent polymer layer and is of the superabsorbent Polymer added. As superabsorbent polymers, polyacrylate polymers, In particular, sodium polyacrylate, are used, since these in a polymer blend are biologically harmless and easily compound and extruded.
Eine wesentliche Veränderung des Kaschierverbundes durch das Aufquellen der superabsorbierenden Polymere ist üblicherweise nicht erwünscht. Des Weiteren haben Versuche gezeigt, dass bei einem großen Anteil der superabsorbierenden Polymere in der Feuchtigkeit absorbierenden Polymerschicht die Sättigung der superabsorbierenden Polyermerketten mit Wassermolekülen abnimmt. Das Verhältnis des gebundenen Wassers bezogen auf die Menge des superabsorbierenden Polymers (Absorbens) nimmt mit zunehmenden Anteil des Absorbens in der absorbierenden Polymerschicht ab. Der Anteil der superabsorbierenden Polymere in der Feuchtigkeit absorbierenden Polymerschicht liegt typischerweise zwischen 1 Gew.-% und 20 Gew.-%. Zufriedenstellende Ergebnisse können bei einem Anteil von weniger als 9% erreicht werden. In einer bevorzugten Ausführung der Erfindung liegt der Anteil der superabsorbie renden Polymere in der Feuchtigkeit absorbierenden Polymerschicht zwischen 3 Gew.-% und 7 Gew.-%. Dabei ist eine hohe Sättigung des Absorbens in der absorbierenden Polymerschicht möglich, weshalb nur geringe Mengen von superabsorbierendem Polymer benötigt werden. Die Feuchtigkeit absorbierende Polymerschicht hat typischerweise eine Dicke zwischen 2 μm und 150 μm, vorzugsweise eine Dicke zwischen 3 μm und 60 μm, besonders bevorzugt zwischen 7 μm und 30 μm.A significant change the lamination composite by swelling the superabsorbent Polymers are common not wanted. Of Further experiments have shown that in a large proportion the superabsorbent polymers in the moisture absorbing Polymer layer saturation of the superabsorbent polymer chains decreases with water molecules. The relationship of the bound water based on the amount of the superabsorbent Polymer (absorbent) increases with increasing proportion of the absorbent in of the absorbent polymer layer. The percentage of superabsorbent Polymer in the moisture-absorbing polymer layer is located typically between 1% and 20% by weight. satisfactory Results can be achieved with a share of less than 9%. In a preferred execution the invention is the proportion of superabsorbie-generating polymers in the moisture-absorbing polymer layer between 3 wt .-% and 7% by weight. It is a high saturation of the absorbent in the absorbent polymer layer is possible, therefore only small amounts of superabsorbent polymer are needed. The moisture-absorbing polymer layer is typically a thickness between 2 microns and 150 μm, preferably a thickness between 3 microns and 60 microns, more preferably between 7 μm and 30 μm.
Die innen liegende Extrusionsfolie des Kaschierverbundes kann sowohl als heißsiegelbare Monofolie mit einer Beimischung des superabsorbierenden Polymers oder mehrschichtig coextrudiert ausgebildet sein. Vorzugsweise ist bei einer mehrschichtig coextrudierten Extrusionsfolie an der Beutelinnenseite eine Siegelschicht vorgesehen, die kein absorbierendes Polymer enthält. Diese Siegelschicht kann beispielsweise aus einem Polymer aus der Gruppe Polyethylen, Polypropylen, Ethylen-Vinylacetat, einer Mischung oder einem Copolymer der Polymere dieser Gruppe bestehen. Die Feuchtigkeit aus dem Innern des Verpackungsbeutels diffundiert durch diese Schicht hindurch zu der Feuchtigkeit absorbierenden Polymerschicht, die nicht in einem direkten Kontakt mit dem Inhalt des Verpackungsbeutels steht. Die Polymerzusammensetzung der Siegelschicht an der Beutelinnenseite kann so ausgewählt werden, dass der Inhalt des Verpackungsbeutels nicht an dieser Schicht haftet und dass vorgegebene Siegeleigenschaften wie eine bestimmte Siegeltemperatur erreicht werden können. Die Siegelschicht hat typischerweise eine Dicke von weniger als 100 μm, vorzugsweise eine Dicke zwischen 4 μm und 50 μm. In einer bevorzugten Ausführung der Erfindung besteht die Extrusionsfolie aus drei coextrudierten Folienschichten, wobei die Feuchtigkeit absorbierende Polymerschicht als mittlere Folienschicht zwischen einer an der beutelinnenseitigen Siegelschicht und einer zusätzlichen Folienschicht angeordnet ist. Die Extrusionsfolie ist dann an der zusätzlichen Folienschicht durch Kaschieren mit der außen liegenden Folie verbunden.The inside lying extrusion film of Kaschierverbundes can both as heat-sealable Monofilm with an admixture of the superabsorbent polymer or multilayer coextruded. Preferably in a multilayer coextruded extrusion film on the inside of the bag provided a sealing layer containing no absorbent polymer. These Sealing layer can be made, for example, of a polymer from the group polyethylene, Polypropylene, ethylene-vinyl acetate, a mixture or a copolymer consist of the polymers of this group. The moisture from the inside the packaging bag diffuses through this layer to the moisture-absorbing polymer layer that is not in is in direct contact with the contents of the packaging bag. The polymer composition of the sealing layer on the inside of the bag can be selected be that the contents of the packaging bag not at this layer liable and that given sealing properties as a specific Sealing temperature can be achieved. The sealant layer has typically a thickness of less than 100 microns, preferably a thickness between 4 μm and 50 μm. In a preferred embodiment According to the invention, the extrusion film consists of three coextruded Film layers, wherein the moisture absorbing polymer layer as a middle film layer between an on the bag inside Sealing layer and an additional Foil layer is arranged. The extrusion film is then at the additional Foil layer connected by lamination with the outer film.
Zur Herstellung des Kaschierverbundes, also zur Verbindung der innen liegenden Extrusionsfolie und der außen liegenden Folie, können übliche Kaschierklebstoffe, z. B. lösungsmittelfreie oder lösungsmittelhaltige Reaktionsklebstoffe, Schmelzklebstoffe und dergleichen eingesetzt werden. Die außen liegende Folie kann bedruckt oder eingefärbt sein und aus einer Mehrzahl von Folienschichten bestehen. In einer bevorzugten Ausführung der Erfindung weist die außen liegende Folie des Kaschierverbundes eine Folienschicht aus einem biaxial orientierten Polypropylen (BOPP), einem Polyester, wie beispielsweise orientiertem, metallisiertem und/oder SiOx-beschichtetem Polyethylenterephthalat (PET) und/oder Aluminium auf, da sich eine solche Folienschicht durch gute Barriereeigenschaften auszeichnet. Der gesamte Kaschierverbund hat typischerweise eine Dicke zwischen 30 μm und 200 μm, vorzugsweise zwischen 50 μm und 120 μm.For the production of Kaschierverbundes, so the connection of the inner extrusion film and the outer film, conventional laminating adhesives, z. As solvent-free or solvent-containing reaction adhesives, hot melt adhesives and the like can be used. The outer film may be printed or colored and consist of a plurality of film layers. In a preferred embodiment of the invention, the outer film of the laminator composite a film layer of a biaxially oriented polypropylene (BOPP), a polyester, such as oriented, metallized and / or SiOx-coated polyethylene terephthalate (PET) and / or aluminum, since such a film layer is characterized by good barrier properties. The entire laminated composite typically has a thickness between 30 .mu.m and 200 .mu.m, preferably between 50 .mu.m and 120 .mu.m.
Die Feuchtigkeit aus dem Inneren des Verpackungsbeutels diffundiert durch das Polymer der Feuchtigkeit absorbierenden Polymerschicht und gegebenenfalls durch weitere innen liegende Schichten zu dem superabsorbierenden Polymer. Die Diffusionsgeschwindigkeit in Bezug auf Wasserdampf wird dabei von den Polymerzusammensetzungen der einzelnen Schichten und deren Schichtdicken vorgegeben, wobei der genaue Wert die Diffusionsgeschwindigkeit von der Zusammensetzung, Mischung und Orientierung der verwendeten Polymere bestimmt wird. Thermoplastische Polyether-Ester-Elastomere und die Polymergruppen Polyamid, Ethylen-Vinylacetat-Copolymer, Ethylen-Vinylalkohol-Copolymer, Polypropylen, Polyethylen und Cycloolefin-Copolymere weisen unterschiedliche Diffusionseigenschaften für Wasserdampf auf, so dass die Geschwindigkeit der Feuchtigkeitsaufnahme durch die Wahl und Anordnung der Polymerschichten gesteuert werden kann. Langfristig bildet sich zwischen der Feuchtigkeit in der Luft im Innern der Verpackung und der Feuchtigkeit, die von der absorbierenden Polymerschicht aufgenommen ist, ein Gleichgewicht. Aufgrund dieses Gleichgewichtes kann, beispielsweise bei einer sehr trockenen Luft im Innern der Verpackung, Feuchtigkeit von der absorbierenden Polymerschicht abgegebenen werden, wodurch die relative Luftfeuchtigkeit in der Verpackung in einem gewissen Rahmen zu regulieren ist. Das superabsorbierende Polymer kann in mehrere Schichten der Coextrusionsfolie mit unterschiedlichen Konzentrationen eingemischt werden.The Moisture diffuses out of the interior of the packaging bag through the polymer of the moisture absorbing polymer layer and optionally by further internal layers to the superabsorbent polymer. The diffusion rate in relation On water vapor is thereby of the polymer compositions of the given individual layers and their layer thicknesses, wherein the exact value the diffusion rate of the composition, Mixture and orientation of the polymers used is determined. Thermoplastic polyether-ester elastomers and the polymer groups Polyamide, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, polypropylene, Polyethylene and cycloolefin copolymers have different diffusion properties for water vapor on, allowing the speed of moisture absorption through the choice and arrangement of the polymer layers can be controlled. In the long run, moisture builds up in the air Interior of the packaging and the moisture absorbed by the absorbent Polymer layer is added, a balance. Because of this Balance can, for example, in a very dry air inside the package, moisture from the absorbent polymer layer be discharged, whereby the relative humidity in the To regulate packaging to a certain extent. The superabsorbent Polymer can be divided into several layers of coextrusion film with different Concentrations are mixed.
Die erfindungsgemäßen Verpackungsbeutel können zusätzlich zu der bevorzugten Verwendung mit Schokoladenwaren auch für andere feuchtigkeitsempfindliche Verpackungsgüter eingesetzt werden. Dazu zählen beispielsweise Lebensmittel wie Gewürze, Kräuter, Kakaopulver, Kaffee, Salzgebäck, Cracker, Chips, Trockenfrüchte, Nüsse und Backwaren oder aber auch Medikamente, Elektronikbauteile, Waschmitteltabs oder Zement.The Packaging bags according to the invention can be used in addition to the preferred use with chocolate confectionery also for others moisture-sensitive packaging goods are used. To counting for example, foods such as spices, herbs, cocoa powder, coffee, Savory biscuits, Crackers, chips, dried fruits, Nuts and Baked goods or even medicines, electronic components, detergent tablets or cement.
Gegenstand der Erfindung ist auch eine Verpackungsfolie nach Anspruch 10 zur Herstellung des beschriebenen Verpackungsbeutels.object The invention is also a packaging film according to claim 10 for Production of the described packaging bag.
Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung erläutert. Es zeigen schematisch:in the The invention will be described below with reference to a purely exemplary embodiment illustrative drawing explained. They show schematically:
Die
Figuren zeigen alternative Ausführungen eines
erfindungsgemäßen Kaschierverbundes
Die
Extrusionsfolie
Die
Claims (10)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510051640 DE102005051640B4 (en) | 2005-10-26 | 2005-10-26 | Packaging bags, in particular for chocolate goods |
CH16242006A CH699270B8 (en) | 2005-10-26 | 2006-10-11 | Packaging bags, in particular for chocolate goods. |
AT17152006A AT502632B1 (en) | 2005-10-26 | 2006-10-16 | Packaging bags, in particular for chocolate goods |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE200510051640 DE102005051640B4 (en) | 2005-10-26 | 2005-10-26 | Packaging bags, in particular for chocolate goods |
Publications (2)
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DE102005051640A1 DE102005051640A1 (en) | 2007-05-10 |
DE102005051640B4 true DE102005051640B4 (en) | 2010-10-14 |
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DE200510051640 Expired - Fee Related DE102005051640B4 (en) | 2005-10-26 | 2005-10-26 | Packaging bags, in particular for chocolate goods |
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AT (1) | AT502632B1 (en) |
CH (1) | CH699270B8 (en) |
DE (1) | DE102005051640B4 (en) |
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DE102007043773A1 (en) | 2007-09-13 | 2009-04-02 | Wipak Walsrode Gmbh & Co.Kg | Moisture absorbing multilayer films and packages made therefrom |
Citations (8)
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US4861632A (en) * | 1988-04-19 | 1989-08-29 | Caggiano Michael A | Laminated bag |
DE3212377C2 (en) * | 1981-04-03 | 1993-07-15 | Optical Coating Laboratory Inc., Santa Rosa, Calif., Us | |
DE4308292A1 (en) * | 1992-03-20 | 1993-09-23 | Alusuisse Lonza Services Ag | Synthetic composite films and packagings for food, etc. - contg. an impermeable layer stable under e.g. pasteurisation conditions |
EP0573782A2 (en) * | 1992-05-13 | 1993-12-15 | Eastman Kodak Company | Easily tearable multilayer packaging film material |
CH683683A5 (en) * | 1992-05-22 | 1994-04-29 | Alusuisse Lonza Services Ag | Kunststoffolienverbunde and packaging. |
DE4406951A1 (en) * | 1994-03-03 | 1995-09-07 | Bayer Ag | Superabsorbent polymers |
DE10255521A1 (en) * | 2002-11-28 | 2004-06-24 | Polymer-Synthese-Werk | Plastic packaging containers |
DE102005004285A1 (en) * | 2005-01-28 | 2006-08-03 | Stockhausen Gmbh | Preparation of polymers, useful e.g. in sanitary articles and agrarian technology, comprises pre-treating a polymerizing monomer solution with electromagnetic radiation, after reaching the maximum polymerization temperature |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1248889B (en) * | 1991-06-28 | 1995-01-30 | Sviluppo Settori Impiego Srl | ELEMENTS FOR MULTI-LAYER AND MULTI-FUNCTIONAL PACKAGING AND PROCEDURE FOR THEIR PREPARATION |
ES2237502T3 (en) * | 2001-03-05 | 2005-08-01 | Cryovac, Inc. | THERMOFORMABLE LAMIN OF SELF-ADJUSTABLE GAS BARRIER AND RECEPTACLE TO PACK FOODS OBTAINED WITH THIS SHEET. |
-
2005
- 2005-10-26 DE DE200510051640 patent/DE102005051640B4/en not_active Expired - Fee Related
-
2006
- 2006-10-11 CH CH16242006A patent/CH699270B8/en not_active IP Right Cessation
- 2006-10-16 AT AT17152006A patent/AT502632B1/en not_active IP Right Cessation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3212377C2 (en) * | 1981-04-03 | 1993-07-15 | Optical Coating Laboratory Inc., Santa Rosa, Calif., Us | |
US4861632A (en) * | 1988-04-19 | 1989-08-29 | Caggiano Michael A | Laminated bag |
DE4308292A1 (en) * | 1992-03-20 | 1993-09-23 | Alusuisse Lonza Services Ag | Synthetic composite films and packagings for food, etc. - contg. an impermeable layer stable under e.g. pasteurisation conditions |
EP0573782A2 (en) * | 1992-05-13 | 1993-12-15 | Eastman Kodak Company | Easily tearable multilayer packaging film material |
CH683683A5 (en) * | 1992-05-22 | 1994-04-29 | Alusuisse Lonza Services Ag | Kunststoffolienverbunde and packaging. |
DE4406951A1 (en) * | 1994-03-03 | 1995-09-07 | Bayer Ag | Superabsorbent polymers |
DE10255521A1 (en) * | 2002-11-28 | 2004-06-24 | Polymer-Synthese-Werk | Plastic packaging containers |
DE102005004285A1 (en) * | 2005-01-28 | 2006-08-03 | Stockhausen Gmbh | Preparation of polymers, useful e.g. in sanitary articles and agrarian technology, comprises pre-treating a polymerizing monomer solution with electromagnetic radiation, after reaching the maximum polymerization temperature |
Also Published As
Publication number | Publication date |
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AT502632B1 (en) | 2008-06-15 |
DE102005051640A1 (en) | 2007-05-10 |
CH699270B8 (en) | 2010-03-31 |
AT502632A3 (en) | 2007-11-15 |
CH699270B1 (en) | 2010-02-15 |
AT502632A2 (en) | 2007-05-15 |
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