CH701216A2 - Process for the production of a cover film for press-through packs. - Google Patents
Process for the production of a cover film for press-through packs. Download PDFInfo
- Publication number
- CH701216A2 CH701216A2 CH00853/09A CH8532009A CH701216A2 CH 701216 A2 CH701216 A2 CH 701216A2 CH 00853/09 A CH00853/09 A CH 00853/09A CH 8532009 A CH8532009 A CH 8532009A CH 701216 A2 CH701216 A2 CH 701216A2
- Authority
- CH
- Switzerland
- Prior art keywords
- layer
- sealing
- cover film
- cover
- cover sheet
- Prior art date
Links
- 239000013039 cover film Substances 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 5
- 238000000034 method Methods 0.000 title claims description 6
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 229920003023 plastic Polymers 0.000 claims abstract description 16
- 239000004033 plastic Substances 0.000 claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 51
- 239000010408 film Substances 0.000 claims description 23
- -1 polychlorotrifluoroethylene Polymers 0.000 claims description 22
- 239000004743 Polypropylene Substances 0.000 claims description 14
- 229920001155 polypropylene Polymers 0.000 claims description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 13
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims description 12
- 239000004698 Polyethylene Substances 0.000 claims description 11
- 229920000573 polyethylene Polymers 0.000 claims description 11
- 239000004800 polyvinyl chloride Substances 0.000 claims description 11
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 9
- 239000004952 Polyamide Substances 0.000 claims description 8
- 229920002647 polyamide Polymers 0.000 claims description 8
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 8
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 8
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 6
- 239000012792 core layer Substances 0.000 claims description 6
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 claims description 5
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 claims description 5
- 229920004439 Aclar® Polymers 0.000 claims description 4
- 239000004922 lacquer Substances 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 239000005033 polyvinylidene chloride Substances 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 3
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims description 2
- 235000013305 food Nutrition 0.000 claims description 2
- 239000002356 single layer Substances 0.000 claims 1
- 239000011888 foil Substances 0.000 description 15
- 239000000945 filler Substances 0.000 description 6
- 230000035515 penetration Effects 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000013032 Hydrocarbon resin Substances 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 235000015218 chewing gum Nutrition 0.000 description 1
- 229940112822 chewing gum Drugs 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000004920 heat-sealing lacquer Substances 0.000 description 1
- 239000012793 heat-sealing layer Substances 0.000 description 1
- 229920006270 hydrocarbon resin Polymers 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 229940127557 pharmaceutical product Drugs 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/16—Surface shaping of articles, e.g. embossing; Apparatus therefor by wave energy or particle radiation, e.g. infrared heating
-
- 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
- B32B27/16—Layered products comprising a layer of synthetic resin specially treated, e.g. irradiated
-
- 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
- B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (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
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
-
- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
-
- 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
- B32B27/325—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polycycloolefins
-
- 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
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- 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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
-
- 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
- B32B7/05—Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0866—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using particle radiation
- B29C2035/0877—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using particle radiation using electron radiation, e.g. beta-rays
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
-
- 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
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/308—Heat stability
-
- 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
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/31—Heat sealable
-
- 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
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
-
- 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
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
-
- 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
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/414—Translucent
-
- 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
-
- 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
- B32B2307/75—Printability
-
- 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
- B32B2435/00—Closures, end caps, stoppers
- B32B2435/02—Closures, end caps, stoppers for containers
-
- 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
- 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
- B32B2439/80—Medical packaging
Landscapes
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Laminated Bodies (AREA)
- Packages (AREA)
- Wrappers (AREA)
Abstract
Bei einem Verfahren zur Herstellung einer transparenten oder transluzenten, metallfolienfreien, durchdrückbaren Deckfolie (18) aus einer wenigstens einlagigen Schicht (20, 22) aus Kunststoffmaterial und einer Siegelschicht (24) zur Siegelung der Deckfolie (18) gegen ein Blisterbodenteil einer Durchdrückpackung wird die Deckfolie (18) zur Einstellung einer gewünschten Durchdrückbarkeit mit Elektronen bestrahlt.In a method for producing a transparent or translucent, metal foil-free, push-through cover film (18) from a plastic layer at least one layer (20, 22) and a sealing layer (24) for sealing the cover sheet (18) against a Blisterbodenteil a blister pack is the cover sheet (18) irradiated with electrons to set a desired pushability.
Description
[0001] Die Erfindung betrifft ein Verfahren zur Herstellung einer transparenten oder transluzenten, metallfolienfreien, durchdrückbaren Deckfolie aus einer wenigstens einlagigen Schicht aus Kunststoffmaterial und einer Siegelschicht zur Siegelung der Deckfolie gegen ein Blisterbodenteil einer Durchdrückpackung. Im Rahmen der Erfindung liegen auch eine mit dem Verfahren hergestellte Deckfolie und eine Durchdrückpackung mit der Deckfolie. The invention relates to a method for producing a transparent or translucent, metal foil-free, push-through cover film from an at least one-layer layer of plastic material and a sealing layer for sealing the cover film against a blister base part of a push-through pack. The scope of the invention also includes a cover film produced using the method and a press-through pack with the cover film.
[0002] Bekannte Durchdrück- oder Blisterpackungen bestehen aus einem Blisterbodenteil und einer gegen das Blisterbodenteil gesiegelten, die Packung verschliessenden Deckfolie. Eine zur dosierten Verpackung pharmazeutischer Produkte, wie Tabletten, bekannte Durchdrückpackung weist üblicherweise eine Vielzahl von einzelnen kleinen Behältnissen in Form von aus einer Bodenfolie herausgeformten, napfförmigen Vertiefungen im Blisterbodenteil zur Aufnahme der Tabletten auf. Zur Entnahme einer einzelnen Tablette aus einer Durchdrückpackung wird die entsprechende Vertiefung im Bodenteil eingedrückt und hierbei die Tablette durch das Deckelmaterial hindurchgedrückt. Üblicherweise ist die Deckfolie eine Aluminiumfolie oder eine Verbundfolie aus einer Aluminiumfolie mit weiteren Schichten aus Kunststoff oder Papier. Die Aluminiumfolie ist ein bevorzugtes Deckelmaterial für Blisterverpackungen, da bei den gewählten Dicken der Deckelmaterialien relativ geringe Bruchkräfte notwendig sind, die benötigte Durchstossenergie somit gering ist und das Aluminium eine geringe Dehnung aufweist. In der Regel besteht das Bodenteil der Durchdrückpackung aus Kunststoff, wie beispielsweise PVC, PVdC, PCTFE, Polypropylen, Polyethylen, Polystyrol, Polyamid, Polyethylenterephthalat und aus wenigstens einem dieser Werkstoffe aufgebauten, gegebenenfalls auch eine Aluminiumfolie enthaltenden Verbundfolien. Known push-through packs or blister packs consist of a blister base part and a cover film which is sealed against the blister base part and seals the pack. A push-through pack known for the metered packaging of pharmaceutical products, such as tablets, usually has a large number of individual small containers in the form of cup-shaped depressions formed from a base film in the blister base part for receiving the tablets. To remove a single tablet from a press-through pack, the corresponding depression in the bottom part is pressed in and the tablet is pressed through the lid material. The cover foil is usually an aluminum foil or a composite foil made of an aluminum foil with further layers of plastic or paper. The aluminum foil is a preferred lid material for blister packs, since relatively low breaking forces are necessary with the selected thicknesses of the lid materials, the required penetration energy is therefore low and the aluminum has a low expansion. As a rule, the bottom part of the press-through pack consists of plastic, such as PVC, PVdC, PCTFE, polypropylene, polyethylene, polystyrene, polyamide, polyethylene terephthalate and composite films made of at least one of these materials, possibly also containing an aluminum foil.
[0003] Im Rahmen der Entwicklung sortenreiner Blisterpackungen sind schon Deckfolien aus Kunststoff vorgeschlagen worden, wobei die Durchdrückeigenschaft der Kunststofffolie durch Einbetten von Füllstoffen in die Matrix erreicht wird. Die Füllstoffe werden hinsichtlich ihrer Zusammensetzung und ihres Anteils so ausgewählt, dass eine Schwächung der sie umgebenden Kunststoffmatrix auftritt, wodurch die Durchstossfestigkeit der Folie so weit herabgesetzt wird, dass sich die verpackten Waren unter Zerreissen oder Aufbrechen der Folie durch diese hindurchdrücken lassen. Aufgrund der Forderung, dass durch die Auswahl der Füllstoffe und insbesondere auch deren Anteile in der Kunststoffmatrix die Durchdrückeigenschaft der Folie sichergestellt werden sollte, resultierten stets opake Deckfolien. In the context of the development of pure blister packs, cover films made of plastic have already been proposed, the push-through property of the plastic film being achieved by embedding fillers in the matrix. The fillers are selected in terms of their composition and their proportion so that a weakening of the surrounding plastic matrix occurs, whereby the puncture resistance of the film is reduced to such an extent that the packaged goods can be pushed through the film by tearing or breaking it open. Due to the requirement that the choice of fillers and, in particular, their proportions in the plastic matrix, should ensure the push-through property of the film, the result is always opaque cover films.
[0004] EP-A-0 613 832 offenbart eine metallfolienfreie Deckfolie mit wenigstens einer Folie aus thermoplastischem Kunststoff auf Polyolefin- oder Polyesterbasis mit einem Füllstoffgehalt von 5 bis 50 Gew.-%. Bevorzugter Kunststoff ist Polyethylen, Füllstoffe sind beispielsweise Kreide und Talkum. EP-A-0 613 832 discloses a metal foil-free cover foil with at least one foil made of thermoplastic material based on polyolefin or polyester with a filler content of 5 to 50% by weight. The preferred plastic is polyethylene; fillers are, for example, chalk and talc.
[0005] Aus DE-A-19 613 960 ist eine transparente Deckfolie mit einer Polyolefin enthaltenden Polymerphase bekannt. Die Polymerphase enthält eine Kohlenwasserstoffharz-Komponente in gelöster Form mit zyklischen Seitengruppen an der Polymerkette. Als Polyolefin bevorzugt sind Polyethylen, Polypropylen oder ein Co- oder Terpolymer von Ethylen und/oder Propylen. Zum Einstellen einer gewünschten Durchdrückkraft kann bis 35 Gew.-% Füllstoff, wie Kreide oder Talkum, in die Polymermasse eingebettet sein. From DE-A-19 613 960 a transparent cover sheet with a polyolefin-containing polymer phase is known. The polymer phase contains a hydrocarbon resin component in dissolved form with cyclic side groups on the polymer chain. Preferred polyolefins are polyethylene, polypropylene or a co- or terpolymer of ethylene and / or propylene. To set a desired penetration force, up to 35% by weight of filler, such as chalk or talc, can be embedded in the polymer mass.
[0006] Aus WO 2009/000 403 A ist eine transparente, durchdrückbare Deckfolie für eine Durchdrückpackung bekannt. Die Deckfolie enthält wenigsten eine Schicht aus Cycloolefin-Copolymer (COC) oder Cycloolefin-Polymer (COP). COC und COP sind hochtransparente Materialien mit ausgezeichneter Barrierewirkung gegen Wasserdampfdurchtritt, können mit anderen Materialien, wie z.B. Polyethylen oder Polypropylen, coextrudiert werden und sind zudem sehr spröde. Diese Eigenschaften bieten an sich ideale Voraussetzungen für den Einsatz von COC und COP zur Herstellung von Deckfolien. Es lassen sich mit diesem Material Deckfolien mit Durchdrückeigenschaften ähnlich den in grossen Mengen vornehmlich aus Aluminiumfolie einer Dicke von 20 um hergestellten Deckfolien erzielen. Damit die Schichten aus COC oder COP Deckfolien infolge ihres tiefen Schmelzintervalls beim Siegeln gegen ein Blisterbodenteil nicht an Siegelwerkzeugen kleben, ist in vielen Anwendungsfällen eine hitzeresistente Kunststoffschicht an der Aussenseite der Deckfolie vorzusehen. Damit diese hitzeresistente Schicht aus beispielsweise Polypropylen (PP) bei der industriellen Fertigung der Deckfolie problemlos verarbeitbar ist, kann es erforderlich sein, die Dicke der PP-Aussenschicht zu erhöhen. Dies führt jedoch zu einer Erhöhung der Dehnung und der Energie bis zum Bruch, was das Durchdrückverhalten entsprechend negativ beeinflusst. [0006] WO 2009/000 403 A discloses a transparent, push-through cover film for a push-through pack. The cover film contains at least one layer of cycloolefin copolymer (COC) or cycloolefin polymer (COP). COC and COP are highly transparent materials with an excellent barrier effect against the penetration of water vapor; they can be combined with other materials, e.g. Polyethylene or polypropylene, are coextruded and are also very brittle. These properties offer ideal conditions for the use of COC and COP for the production of cover films. With this material, cover foils with push-through properties similar to the cover foils produced in large quantities primarily from aluminum foil with a thickness of 20 μm can be obtained. So that the layers of COC or COP cover films do not stick to sealing tools when they are sealed against a blister base part due to their low melting interval, a heat-resistant plastic layer must be provided on the outside of the cover film in many applications. So that this heat-resistant layer made of, for example, polypropylene (PP) can be processed without problems in the industrial production of the cover film, it may be necessary to increase the thickness of the PP outer layer. However, this leads to an increase in elongation and energy up to breakage, which has a correspondingly negative effect on the push-through behavior.
[0007] Der Erfindung liegt die Aufgabe zugrunde, eine zur Siegelung gegen alle gängigen Bodenmaterialien geeignete Deckfolie zu schaffen, die transparent oder transluzent und metallfolienfrei ist und gleichzeitig eine Sprödigkeit aufweist, die mit einer herkömmlichen, eine Aluminiumfolie enthaltenden Deckfolie vergleichbare Durchdrückeigenschaften aufweist. Insbesondere soll die Deckfolie unabhängig von der Dicke einer hitzeresistenten Aussenschicht die gewünschten Durchdrückeigenschaften aufweisen. The invention is based on the object of creating a cover sheet suitable for sealing against all common flooring materials, which is transparent or translucent and free of metal foil and at the same time has a brittleness that has push-through properties comparable to a conventional cover sheet containing an aluminum foil. In particular, the cover film should have the desired push-through properties regardless of the thickness of a heat-resistant outer layer.
[0008] Zur erfindungsgemässen Lösung der Aufgabe führt, dass die Deckfolie zur Einstellung einer gewünschten Durchdrückbarkeit mit Elektronen bestrahlt wird. To achieve the object according to the invention, the cover film is irradiated with electrons in order to set a desired push-through capability.
[0009] Die Bestrahlung mit Elektronen wird bevorzugt auf der der Siegelschicht abgewandten Seite durchgeführt. The irradiation with electrons is preferably carried out on the side facing away from the sealing layer.
[0010] Bevorzugt erfolgt die Bestrahlung mit Elektronen in einem Spannungsfenster Elektronen in einem Spannungsfenster zwischen 70 und 180 kV, insbesondere zwischen 70 und 120 kV und die Strahlendosis beträgt zwischen 20 und 80 kGrey. Preferably, the irradiation with electrons takes place in a voltage window of electrons in a voltage window between 70 and 180 kV, in particular between 70 and 120 kV and the radiation dose is between 20 and 80 kGrey.
[0011] Für gewisse Anwendungen können die transparenten Materialien z.B. mit Titandioxid eingefärbt oder weiss bedruckt werden. Diese Materialien sind dann zwar nicht mehr transparent, aber immer noch lichtdurchlässig. For certain applications the transparent materials can e.g. colored with titanium dioxide or printed white. These materials are no longer transparent, but they are still translucent.
[0012] Eine mit dem erfindungsgemässen Verfahren hergestellte Deckfolie ist bevorzugt auf der der Siegelschicht abgewandten Seite mit einer bei Siegeltemperatur thermisch stabilen Kunststoffschicht, insbesondere mit einer Schicht aus Polypropylen (PP), Polyamid (PA) oder Polyethylenterephthalat (PET), oder mit einer bei Siegeltemperatur thermisch stabilen Lackschicht, als äusserste Schicht versehen. A cover film produced with the inventive method is preferably on the side facing away from the sealing layer with a plastic layer that is thermally stable at the sealing temperature, in particular with a layer of polypropylene (PP), polyamide (PA) or polyethylene terephthalate (PET), or with a Sealing temperature thermally stable lacquer layer, provided as the outermost layer.
[0013] Zwischen der Siegelschicht und der thermisch stabilen Kunststoffschicht oder Lackschicht kann zur weiteren Verbesserung der Durchdrückeigenschaften und als Barriereschicht gegen einen Durchtritt von Wasserdampf wenigstens eine Schicht aus Cycloolefin-Copolymer (COC) oder Cycloolefin-Polymer (COP) angeordnet sein. At least one layer of cycloolefin copolymer (COC) or cycloolefin polymer (COP) can be arranged between the sealing layer and the thermally stable plastic layer or lacquer layer to further improve the push-through properties and as a barrier layer against the passage of water vapor.
[0014] Die Siegelschicht ist bevorzugt eine Heisssiegellackschicht oder eine coextrudierte Heisssiegelschicht, welche gegen Blisterbodenteile aus allen gängigen Materialien siegelbar sind. The sealing layer is preferably a heat-sealing lacquer layer or a coextruded heat-sealing layer, which can be sealed against blister base parts made of all common materials.
[0015] Beispiele von zur Herstellung von Blisterbodenteilen verwendeten Materialien sind Folien aus Polyvinylchlorid (PVC), Polyvinylidenchlorid (PVDC), ACLAR® (Polychlortrifluorethylen, PCTFE), Polypropylen (PP), Polyethylenterephthalat (PET), Polyethylen (PE), Polystyrol (PS), Polyamid (PA) und Verbundfolien wie PVC/ACLAR®, PVC/PVDC, PVC/COC, PVC/COP oder FORMPACK® (Alumini um/Kunststoff-Verbundfolie). Examples of materials used to produce blister base parts are films made of polyvinyl chloride (PVC), polyvinylidene chloride (PVDC), ACLAR® (polychlorotrifluoroethylene, PCTFE), polypropylene (PP), polyethylene terephthalate (PET), polyethylene (PE), polystyrene (PS ), Polyamide (PA) and composite films such as PVC / ACLAR®, PVC / PVDC, PVC / COC, PVC / COP or FORMPACK® (aluminum / plastic composite film).
[0016] Eine besonders bevorzugte Deckfolie weist eine Kernschicht aus Cycloolefin-Copolymer (COC) oder Cycloolefin-Polymer (COP) auf, die auf einer Seite mit einer Siegelschicht aus Polyethylen Copolymer (PE-copo) und auf der anderen Seite mit einer hitzebeständigen Schicht aus Polypropylen Homopolymer (PP-homo) belegt ist. Die Kernschicht, die Siegelschicht und die hitzebeständige Schicht sind bevorzugt coextrudiert. A particularly preferred cover sheet has a core layer made of cycloolefin copolymer (COC) or cycloolefin polymer (COP), on one side with a sealing layer made of polyethylene copolymer (PE-copo) and on the other side with a heat-resistant layer made of polypropylene homopolymer (PP-homo). The core layer, the sealing layer and the heat-resistant layer are preferably coextruded.
[0017] Die Deckfolie weist eine bevorzugte Dicke von 5 bis 60 μm, vorzugsweise 10 bis 30 μm, auf. The cover film has a preferred thickness of 5 to 60 μm, preferably 10 to 30 μm.
[0018] Der Anwendungsbereich der transparenten oder transluzenten, metallfolien-freien, durchdrückbaren Deckfolie liegt bevorzugt bei einer Durchdrückpackung mit einem Blisterbodenteil, gegen welches die Deckfolie gesiegelt ist. The area of application of the transparent or translucent, metal foil-free, push-through cover film is preferably a push-through pack with a blister base part against which the cover film is sealed.
[0019] Bei einer Blisterverpackung mit einem Blisterbodenteil und einer gegen das Blisterbodenteil gesiegelten erfindungsgemässen Deckfolie besteht das Blisterbodenteil wenigstens auf der gegen die Deckfolie gesiegelten Seite aus einem Material, dessen chemische Struktur mit derjenigen der gegen das Blisterbodenteil gesiegelten Kunststofffolie kompatibel ist. In a blister pack with a blister base part and a cover sheet according to the invention sealed against the blister base part, the blister base part consists at least on the side sealed against the cover sheet of a material whose chemical structure is compatible with that of the plastic sheet sealed against the blister base part.
[0020] Es sei hier noch erwähnt, dass sowohl die Deckfolie als auch die Bodenfolie bedruckt sein können. It should also be mentioned here that both the cover sheet and the bottom sheet can be printed.
[0021] Die hauptsächlichen Anwendungsgebiete von Durchdrückpackungen mit der erfindungsgemässen Deckfolie sind der Pharmabereich, z.B. zur Verpackung Tabletten und Kapseln, sowie der Nahrungsmittelbereich, z.B. zur Verpackung von Kaugummi und Bonbons. The main areas of application of press-through packs with the cover film according to the invention are in the pharmaceutical sector, e.g. for packaging tablets and capsules, as well as the food sector, e.g. for packaging chewing gum and sweets.
[0022] Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung, die lediglich zur Erläuterung dient und nicht einschränkend auszulegen ist. Die Zeichnung zeigt schematisch in Fig. 1<sep>eine Draufsicht auf das Blisterbodenteil einer Durchdrückpackung; Fig. 2<sep>einen Querschnitt durch die Durchdrückpackung von Fig. 1 nach der Linie l-l; Fig. 3<sep>eine Draufsicht auf die Deckfolie der Durchdrückpackung von Fig. 1; Fig. 4<sep>einen Querschnitt durch eine Deckfolie.[0022] Further advantages, features and details of the invention emerge from the following description of preferred exemplary embodiments and with reference to the drawing, which is only used for explanation and is not to be interpreted as limiting. The drawing shows schematically in FIG. 1 a plan view of the blister base part of a push-through pack; FIG. 2 shows a cross section through the push-through pack from FIG. 1 along the line I-I; FIG. FIG. 3 shows a plan view of the cover film of the push-through pack from FIG. 1; FIG. 4 shows a cross section through a cover film.
[0023] Eine in den Fig. 1 bis 3 dargestellte Durchdrückpackung 10 besteht aus einem Blisterbodenteil 12 mit aus einer Bodenfolie herausgeformten, napfförmigen Behältnissen 14. In den Behältnissen 14 befinden sich Tabletten 16. Als Verschluss für die Behältnisse 14 ist eine die Öffnungen der Behältnisse 14 überspannende Deckfolie 18 gegen das Blisterbodenteil 12 gesiegelt. A press-through pack 10 shown in FIGS. 1 to 3 consists of a blister base part 12 with cup-shaped containers 14 formed from a base film. In the containers 14 there are tablets 16. As a closure for the containers 14, one is the openings of the containers 14 spanning cover sheet 18 sealed against the blister base part 12.
[0024] Zur Entnahme der einzelnen Tabletten 16 aus der Durchdrückpackung 10 wird von der Seite des Blisterbodenteils 12 her mit dem Daumen oder einem Finger Druck auf das entsprechende Behältnis 14 ausgeübt und die Tablette 16 aus dem Behältnis 14 durch die Deckfolie 18 hindurch gestossen. Dabei wird die Dicke der Deckfolie so eingestellt, dass die Deckfolie 18 beim Ausstossen der Tablette 16 aus dem Behälter 14 ohne übermässigen Kraftaufwand reisst. To remove the individual tablets 16 from the press-through pack 10, pressure is exerted on the corresponding container 14 with the thumb or finger from the side of the blister base part 12 and the tablet 16 is pushed out of the container 14 through the cover sheet 18. The thickness of the cover film is set so that the cover film 18 tears when the tablet 16 is ejected from the container 14 without using excessive force.
[0025] Eine in Fig. 4 beispielhaft gezeigte Deckfolie 18 besteht aus einer Kernschicht 20 aus COC-Blend mit einer coextrudierten hitzebeständigen Schicht 22 aus PP-homo auf einer Seite und mit einer coextrudierten Siegelschicht 24 aus PE-copo auf der anderen, später gegen ein Blisterbodenteil 12 zu siegelnden Seite. A cover sheet 18 shown as an example in Fig. 4 consists of a core layer 20 made of COC blend with a coextruded heat-resistant layer 22 made of PP-homo on one side and with a coextruded sealing layer 24 made of PE-copo on the other, later against a blister base part 12 side to be sealed.
[0026] In der nachfolgenden Tabelle sind die Ergebnisse von an einer erfindungsgemässen Folie (B) gemäss Fig. 4und an einer handelsüblichen Aluminiumfolie (A) als Vergleichsfolie zum Durchdrückverhalten durchgeführten Versuchen zusammengestellt. Die untersuchten Folien haben folgenden Aufbau: A<sep>20 um Aluminiumfolie hart, lackiert B<sep>18 μm PP-homo /14 μm COC-Blend / 5 μm PE-copoThe table below shows the results of tests carried out on a film (B) according to the invention as shown in FIG. 4 and on a commercially available aluminum film (A) as a comparison film on the push-through behavior. The films examined have the following structure: A <sep> 20 μm hard aluminum foil, coated B <sep> 18 μm PP-homo / 14 μm COC blend / 5 μm PE-copo
[0027] Die erfindungsgemässe Folie B wurden in unbestrahltem Zustand 0 und in drei Zuständen 1, 2 und 3 nach einer Bestrahlung mit Elektronen bei einer Spannung von 80 kV mit unterschiedlichen Strahlendosen von 17.6 kGy (Zustand 1), 35.2 kGy (Zustand 2) und 52.8 kGy (Zustand 3) untersucht. Die Bestrahlung erfolgte jeweils von der Seite mit der Schicht aus PP-homo. Die Verteilung der mit der Eindringtiefe der Elektronen abnehmenden Strahlendosis betrug 100% an der Oberfläche, 88% in der Aussenschicht aus PP-homo, 51% in der Kernschicht aus COC und 21 % in der Siegelschicht aus PE-copo. The inventive film B were in the unirradiated state 0 and in three states 1, 2 and 3 after irradiation with electrons at a voltage of 80 kV with different radiation doses of 17.6 kGy (state 1), 35.2 kGy (state 2) and 52.8 kGy (state 3) examined. The irradiation was carried out from the side with the layer of PP-homo. The distribution of the radiation dose, which decreases with the penetration depth of the electrons, was 100% on the surface, 88% in the outer layer made of PP-homo, 51% in the core layer made of COC and 21% in the sealing layer made of PE-copo.
[0028] Bestimmt wurden die maximale Durchdrückkraft Fmax [N], die Dehnung bis zum Bruch d [mm] und die Energie bis zum Bruch E [Nmm]. Zudem wurde das Durchdrückverhalten von Hand beurteilt. The maximum penetration force Fmax [N], the elongation up to the break d [mm] and the energy up to the break E [Nmm] were determined. In addition, the push-through behavior was assessed by hand.
[0029] Die Ergebnisse zeigen, dass die erfindungsgemässe Folie B eine mit der Aluminiumfolie A vergleichbare Durchdrückkraft aufweisen. Die gegenüber der Aluminiumfolie A erhöhten Werte der erfindungsgemässen Folie B für die Dehnung bis zum Bruch und für die Energie bis zum Bruch liegen immer noch in einem akzeptablen Bereich. The results show that the film B according to the invention has a penetration force comparable to that of the aluminum film A. The values of the film B according to the invention, which are higher than that of the aluminum foil A, for the elongation to break and for the energy to break are still in an acceptable range.
Claims (14)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH00853/09A CH701216A2 (en) | 2009-06-03 | 2009-06-03 | Process for the production of a cover film for press-through packs. |
| PCT/EP2010/003165 WO2010139409A1 (en) | 2009-06-03 | 2010-05-25 | Method for producing a cover film for extruded packaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH00853/09A CH701216A2 (en) | 2009-06-03 | 2009-06-03 | Process for the production of a cover film for press-through packs. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH701216A2 true CH701216A2 (en) | 2010-12-15 |
Family
ID=43297293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH00853/09A CH701216A2 (en) | 2009-06-03 | 2009-06-03 | Process for the production of a cover film for press-through packs. |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH701216A2 (en) |
| WO (1) | WO2010139409A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4321337A1 (en) * | 2022-08-10 | 2024-02-14 | SÜDPACK Medica AG | Cover film and base film for a blister package and blister package |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2801475A1 (en) * | 2013-05-06 | 2014-11-12 | Agfa-Gevaert | Novel blister pack for pharmaceuticals |
| DE102015015730A1 (en) | 2015-09-28 | 2017-03-30 | Giesecke & Devrient Gmbh | Packaging, cover foil and use of a foil as cover foil |
| DE102016000592A1 (en) | 2015-12-30 | 2017-07-06 | Giesecke & Devrient Gmbh | Plastic film molding, manufacturing process and blister |
| EP4330156A1 (en) * | 2021-06-03 | 2024-03-06 | Tekni-Plex, Inc. | Recyclable blister package |
| WO2024079760A1 (en) * | 2022-10-13 | 2024-04-18 | Manish Jain | Thermoforming case for oxygen absorber tablet |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BG32652A1 (en) * | 1980-03-13 | 1982-09-15 | Kolev | Method for surface laying of metals on synthetic, natural and artificial polymers |
| CH684788A5 (en) | 1993-03-04 | 1994-12-30 | Alusuisse Lonza Services Ag | Free metal foil lidding film for blister packs. |
| DE19613960C5 (en) | 1996-04-09 | 2004-11-04 | Borealis Gmbh | Rupture foil |
| DE102006051366A1 (en) * | 2006-10-27 | 2008-05-08 | Boehringer Ingelheim Pharma Gmbh & Co. Kg | Method for sterilizing a film container |
| WO2009000403A1 (en) | 2007-06-22 | 2008-12-31 | Alcan Technology & Management Ltd. | Outer film for blister packs |
-
2009
- 2009-06-03 CH CH00853/09A patent/CH701216A2/en not_active Application Discontinuation
-
2010
- 2010-05-25 WO PCT/EP2010/003165 patent/WO2010139409A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4321337A1 (en) * | 2022-08-10 | 2024-02-14 | SÜDPACK Medica AG | Cover film and base film for a blister package and blister package |
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| Publication number | Publication date |
|---|---|
| WO2010139409A1 (en) | 2010-12-09 |
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