WO2015139843A1 - Verpackungsfolie - Google Patents
Verpackungsfolie Download PDFInfo
- Publication number
- WO2015139843A1 WO2015139843A1 PCT/EP2015/000610 EP2015000610W WO2015139843A1 WO 2015139843 A1 WO2015139843 A1 WO 2015139843A1 EP 2015000610 W EP2015000610 W EP 2015000610W WO 2015139843 A1 WO2015139843 A1 WO 2015139843A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plastic film
- packaging film
- layer
- film according
- packaging
- 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
Links
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
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/02—Wrappers or flexible covers
- B65D65/14—Wrappers or flexible covers with areas coated with adhesive
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/002—Combinations of extrusion moulding with other shaping operations combined with surface shaping
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
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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
- B32B1/00—Layered products having a non-planar shape
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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
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
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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
- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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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
- 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
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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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
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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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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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
- 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
- B32B3/30—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 formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/06—Embossing
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B32B7/06—Interconnection of layers permitting easy separation
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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
- 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
- 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
- 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
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/007—Details of, or accessories for, sacks or bags for facilitating the separation of the two walls, e.g. walls of inequal height, tabs; for maintaining the mouth of the sack or bag open
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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
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
-
- 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
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
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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
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5805—Opening or contents-removing devices added or incorporated during package manufacture for tearing a side strip parallel and next to the edge, e.g. by means of a line of weakness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/12—Thermoplastic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7128—Bags, sacks, sachets
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B2037/148—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers whereby layers material is selected in order to facilitate recycling of the laminate
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
- B32B2250/242—All polymers belonging to those covered by group B32B27/32
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- 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
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- B32B2307/514—Oriented
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Definitions
- the present invention relates to a packaging film comprising a at least monoaxially stretched, multilayer, flexible plastic film having a total thickness ⁇ 18 gm, preferably ⁇ 12 ⁇ m, which has an elongation of up to 1% at a tensile force of at least 3 N per 25 mm width according to DIN EN ISO 527-3, and packages made therefrom for preferably individually packaged hygiene products or individually packaged incontinence products.
- plastic films are needed for many applications, wherein the use of plastic films as packaging material accounts for a significant proportion of consumption.
- an increasing trend for the packaging of hygiene articles for single use is recognizable. Since such hygiene articles as panty liners or sanitary napkins, but also incontinence articles are packed increasingly individually.
- the demand for suitable packaging material is also increasing. Since such packaging material is hardly recyclable and therefore can not be reused, attempts are increasingly being made to use as little fossil resources as possible for these packaging materials as well.
- a packaging film comprising an at least monoaxially stretched, multilayer plastic film with a total thickness of ⁇ 18 pm, preferably ⁇ 12 ⁇ m, in particular from 5 ⁇ m to ⁇ 12 ⁇ m, and which has an elongation of up to 1%.
- the packaging film according to the invention preferably consists only of a multilayer plastic film having a total thickness of ⁇ 18 ⁇ m, preferably ⁇ 12 ⁇ m, in particular from 5 ⁇ m to ⁇ 12 ⁇ m, which is characterized in that it has an at least monoaxial stretching in the machine direction of at least 1: 2, preferably of at least 1, 3, more preferably of 1: 3 to 1: 5 and an elongation of up to 1% at a tensile force of at least 3 N, preferably 3 N up to 5 N per 25 cm width according to DIN ISO 527-3.
- the plastic film of the invention may also be biaxially oriented, d. H. also have a cross-machine direction stretching of 1: 2 to 1: 3.5.
- a biaxial stretching i. In both machine direction and cross machine direction stretching, the draw ratio in these two directions may be different, with preferably machine direction stretching being higher than cross machine direction.
- the plastic film used according to the invention is multi-layered, preferably at least three-layered, particularly preferably at least five-layered. In further preferred embodiments, the plastic film may have 7 to 11 layers.
- the multilayer plastic film used according to the invention comprises at least one five-layer structure of the polymer layers:
- an optionally sealable layer (e) as the outer layer.
- the layers of the plastic film used according to the invention as a packaging film are preferably composed of thermoplastic polymers selected from the group comprising polyolefins, polyamides, polyesters, biodegradable polymers, copolymers of at least two monomers of said polymers and mixtures of at least two of said polymers.
- the inventive plastic film used as a packaging film preferably consists of at least 50% by weight, particularly preferably of at least 70% by weight of polyolefins, preferably of C 2 -C 8 -olefin polymers, more preferably of C 2 -C 3 -olefin polymers , their mixtures or copolymers and has the characteristics listed above, such as thickness, stretching and elongation.
- the plastic film according to the invention does not comprise cyclic olefin polymers or copolymers.
- the layers (a) and (e) and optionally the layer (c) of the plastic film according to the invention are each, identically or differently, based on polyolefins and olefin copolymers of ⁇ , ⁇ -unsaturated olefins having 2-8, preferably 2-3 carbon atoms preferably selected from the group comprising polyethylenes (PE), preferably low density polyethylenes between 0.86 and 0.93 g / cm 3 (LDPE), linear low density polyethylenes between 0.86 and 0.94 g / cm 3 ( LLDPE), which in addition to ethylene as comonomer one or more a- Olefins containing more than 2 carbon atoms, medium density polyethylenes between 0.926 and 0.94 g / cm 3 (MDPE), high density polyethylenes between 0.94 and 0.97 g / cm 3 (HDPE), or ethylene copolymers with one ⁇ -olefin having 4 or more carbon atoms (mPE); Polypropylene (PP),
- PE
- a mixture of LDPE and MDPE or a mixture of LDPE, MDPE and PP for the production of layers (a), (e) and optionally (c) can be used, wherein the proportion of MDPE and optionally PP in the mixture in each case 25 wt .-% to 85 wt .-%, based on the total weight of the respective layer can be.
- the layers (a) and (e) may also be selected from olefin / vinylcarboxylic acid copolymers or olefin / inylester copolymers such as ethylene-acrylic acid copolymers (EAA), their esters such as (EMA), ethylene-methacrylic acid copolymers (EMAA), their esters as (EMMA), ethylene-vinyl acetate copolymers having preferably 60-99 mol .-% of ethylene (EVA) or mixtures of at least two of the abovementioned polymer types.
- EAA ethylene-acrylic acid copolymers
- EMA ethylene-methacrylic acid copolymers
- EMMA ethylene-vinyl acetate copolymers having preferably 60-99 mol .-% of ethylene (EVA) or mixtures of at least two of the abovementioned polymer types.
- At least layer (e) may be based on at least one polyester or at least one copolyester, which is preferably selected from the group comprising polyethylene terephthalates (PET, c-PET, a-PET) and copolymers such as CoPET, PBT and CoPBT).
- PET polyethylene terephthalates
- a-PET polyethylene terephthalates prepared by polycondensation of ethylene glycol and terephthalic acid.
- a-PET amorphous PET
- c-PET crystalline PET
- CoPET denotes copolyesters which, in addition to ethylene glycol and terephthalic acid, contain other monomers, such as may contain branched or aromatic diols.
- CoPBT refers to polybutylene terephthalates.
- the polyester or copolyester used has an intrinsic viscosity of preferably from 0.1 to 2.0 dl / g, more preferably from 0.3 to 1.5 dl / g, in particular from 0.6 to 1.0 dl / g with the methods for determining the intrinsic viscosity being known to the person skilled in the art.
- suitable PET and PBT can be found in Kunststoffhandbuch Volume 3/1 - engineering thermoplastics: polycarbonates, polyacetals, polyesters, cellulose esters; Carl Hanser Verlag, 1992, the contents of which are incorporated by reference.
- At least layer (e) may be based on at least one biodegradable polymer.
- Suitable biodegradable thermoplastic polymers may be at least one biodegradable polymer selected from the group comprising lactic acid homopolymers and copolymers, preferably polylactides, more preferably DL-lactide, L-lactide and D-lactide, polyhydroxyalkanoates, cellulose, cellulose derivatives, thermoplastic starch, polyesters, preferably polycaprolactones, polyethers, at least partially hydrolyzed polyvinyl acetates, ethylene-vinyl alcohol copolymers and copolymers of at least two monomers of said polymers are used.
- the plastic film used according to the invention as a packaging film has at least one layer (c) with a barrier effect.
- a barrier effect in particular against gas or aroma loss, against migration of low molecular weight fractions and / or against taste or Odor impairment, or against moisture and / or oils and fats can be achieved.
- the layer (c) is based with a barrier effect against gases, preferably against O 2 , H 2 0 vapor and / or gaseous flavoring, against migration of low molecular weight, organic compounds and / or against previouslys. Odor impairment on at least one thermoplastic polymer selected from the group comprising ethylene-vinyl alcohol copolymers, polyvinyl alcohols, polyvinylidene chlorides, vinylidene chloride copolymers, polyether-polyamide block copolymers and mixtures of the polymers with ethylene-vinyl acetate copolymers.
- Preferred vinylidene chloride copolymers have a proportion of vinylidene chloride of 80% or more. Ethylene-vinyl alcohol copolymers are particularly preferred.
- layer (c) achieves a barrier action against moisture and / or oils and fats, which is preferably based on a thermoplastic, aliphatic or (partially) aromatic polyamide or copolyamide or mixtures thereof.
- PA polyamides
- CoPA copolyamides
- at least one layer (c) preferably aliphatic or (partially) aromatic polyamides, preferably having a melting point in the range from 160 to 240 ° C, more preferably from 170 to 220 ° C become.
- Preferred are aliphatic polyamides, wherein at least one polyamide or copolyamide selected from the group comprising PA 6, PA 12, PA 6,6, PA 6,12, PA 6 / 6,6, PA 6,6 / 6, or partially aromatic polyamides such PA6T and PA6I, which preferably also contains isophoronediamine May have units.
- homo- and / or copolyamides selected from the group comprising thermoplastic, aliphatic, partially aromatic and aromatic homopolymers or copolyamides with isophoronediamine units can be used in particular for producing the layer (c).
- These homo- or copolyamides with isophorone diamine units can be prepared from further aliphatic and / or cycloaliphatic diamines having 2-10 carbon atoms, such as hexamethylenediamine and / or aromatic diamines having 6-10 carbon atoms, such as p-phenylenediamine, and aliphatic or aromatic dicarboxylic acids having 6-14 Carbon atoms such as Adipic acid in addition to terephthalic acid and / or isophthalic acid.
- polyamides with isophoronediamine units which can be added with the concomitant use of lactams with 4-10 carbon atoms such. ⁇ -caprolactam were prepared used.
- ⁇ -caprolactam preferably homo- and / or copolyamides can be used with isophorone diamine units, wherein, copolyamides of ⁇ -caprolactam, isophorone diamine and an aromatic dicarboxylic acid, preferably isophthalic acid, are particularly preferably used.
- the proportion of isophoronediamine-isophthalic acid units in the polyamide component of layer (c) is at least 1 to 10% by weight, particularly preferably 2 to 6% by weight, based on the total weight of the polyamide component .
- the thermoplastic polyesters listed above for the preparation of the layer (e) can also be used for the preparation of the layer (c).
- the multilayer plastic film of the invention compared to a corresponding plastic film without barrier layer significantly reduced oxygen permeability according to DIN 53380-3 have not more than 10.00 cm 3 / (m 2 d bar) at 23 ° C and 50% r. F. may be.
- the oxygen permeability of the multilayer plastic film used according to the invention can be further increased to not more than 8 cm 3 / (m 2 d bar), preferably not more than 7 or 6 cm 3 / (m 2 d bar), more preferably not more than 5, 4 or 3 cm 3 / (m 2 d bar), more preferably at most 2, 1 or 0.5 cm 3 / (m 2 d bar), most preferably at most 0.4, 0.3 or 0.2 cm 3 / (m 2 d bar) and in particular at most 0.1, 0.09 or 0.08 cm 3 / (m 2 d bar), each at 23 ° C and 50% r. F.).
- the water vapor permeability of the multilayer plastic film used according to the invention can likewise be reduced to the abovementioned values for the oxygen permeability by appropriate selection of suitable polymers, the water vapor permeability being determined in accordance with DIN ISO 53,122.
- the layer (c) acts as a barrier layer (c), it is preferably connected via adhesion promoter layers (b) and (d) to the layers adjacent thereto.
- adhesion promoter layers (b) and (d) are preferably based on a preferably modified polyolefin and / or olefin copolymer, preferably selected from the group comprising polyethylenes modified with carboxyl groups or cyclic anhydride groups, polypropylenes, in particular with maleic anhydride groups Polyethylenes, polypropylenes and ethylene-vinyl acetate copolymers.
- maleic anhydride-modified PE COOH-modified PE, carboxyl-modified copolymers of ethylene-vinyl acetate, or ethylene (meth) acrylate or hydride-modified ethylene-vinyl acetate copolymers and a polymer blend comprising at least two of the abovementioned polymers.
- Copolymers modified with maleic anhydride are particularly preferred.
- the packaging film according to the invention consists of a plastic film with an at least five-layered construction
- a barrier layer (c) based on a polyamide, preferably aliphatic polyamide, or copolyamide, preferably a (partially) aromatic copolyamide, (d) a further primer layer (d), and
- the multilayer plastic film according to the invention used as packaging film comprises more than one layer (c) according to the following layer sequence:
- an optionally heat-sealable, optionally multilayered layer (a) preferably composed of at least one thermoplastic olefin homo- or copolymers or mixtures thereof, which may optionally be configured with a release layer as the outer layer,
- an optionally heat-sealable outer layer (s) composed of at least one thermoplastic olefin homo- or copolymers or mixtures thereof.
- the layers (c) are based on homopolymers, copolymers or mixtures of polymers as described above, more preferably on polyamides or Ethylene vinyl alcohol copolymers.
- the other layers also preferably correspond in their construction to the information given above about these layers.
- the layers of the multilayer plastic film used according to the invention may each have the same or different additives selected from the group comprising antioxidants, antiblocking agents, antifog agents, antistatic agents, antimicrobial agents, light stabilizers, UV absorbers, UV filters, dyes, color pigments, stabilizers, preferably Heat stabilizers, process stabilizers and UV and / or light stabilizers, preferably based on at least one sterically hindered amine (HALS), process aids, flame retardants, nucleating agents, crystallizing agents, preferably nucleating agents, lubricants, optical brighteners, plasticizers, silanes, spacers , Fillers such as CaCO 3, silicates, peel additives, seal additives, waxes, wetting agents, surface-active compounds, preferably surfactants, and dispersants.
- HALS sterically hindered amine
- the layers of the plastic film used according to the invention may contain at least 0.01-30% by weight, preferably at least 0.1-20% by weight, based in each case on the total weight of a single layer of at least one of the abovementioned additives.
- the plastic film or packaging film according to the invention is not embossed and has no embossed structure on its surface layers.
- the stretched plastic film of the present invention also has excellent tensile strength, good to very good tear propagation performance, and excellent puncture resistance, with an elongation of up to 1% at a tensile force of at least 3N per 25mm width, preferably 3 N up to 5 N per 25 mm width according to DIN EN ISO 527-3 occurs.
- a barrier layer in particular from one of said partially aromatic copolyamides
- the multilayer plastic film used according to the invention as a packaging film may also have a release coating on one of its outer layers to improve its release effect.
- the release coating is preferably based on a cured polysiloxane coating, with which the multi-layered coating used according to the invention is used Plastic film can be equipped before stretching or after stretching.
- the release effect generating release coating is essentially over the entire surface, preferably up to at least one running in the machine direction strip or part of the surface, preferably as Rapportgenauer horizontal strip.
- polysiloxane refers to compounds whose polymer chains are built up alternately from silicon and oxygen atoms.
- a polysiloxane is based on n recurring siloxane units (- [Si (R2) -O] -) n , which are each independently disubstituted with two organic radicals R, where R is preferably each R 1 or OR 1 and R 1 is each represents an alkyl radical or an aryl radical.
- the cured polysiloxane coating is based on a recurring dialkylsiloxane unit or on a repeating alkylaryl-siloxane unit.
- the polysiloxane coating according to the invention preferably has a crosslinked ring-shaped or chain-like, particularly preferably a crosslinked, chain-like structure which links through (D), (T), and / or (Q) units to form a two- or three-dimensional network is.
- the number n of repeating siloxane units [Si (R 2 ) -O] -) n in the polysiloxane chain is referred to as the degree of polymerization of the polysiloxane.
- the cured polysiloxane coating of the plastic film according to the invention is preferably based on at least one cured, ie crosslinked polysiloxane selected from the group comprising addition-crosslinked, preferably metal-catalyzed addition-crosslinked, condensation-crosslinked, radically crosslinked and / or cationically crosslinked polysiloxanes.
- the polysiloxane coating is based on at least one cured polysiloxane, which has been cured by thermal curing and / or under the action of UV radiation.
- the polysiloxane coating is preferably based on at least one cured polysiloxane selected from the group comprising polydialkylsiloxanes, preferably polydimethylsiloxanes, and polyalkylarylsiloxanes, preferably polymethylphenylsiloxanes, which are each cured.
- Thermally cured polysiloxanes can be obtained by thermal hydrosilylation of silane-functional polysiloxanes having a compound having at least one carbon double bond.
- the UV curing is preferably carried out after stretching the film used according to the invention. Likewise, the thermal curing is preferably carried out after stretching the packaging film according to the invention. UV curing is preferred according to the invention.
- the production of the plastic film used according to the invention as a packaging film can be carried out by any known production method, such as e.g. by extrusion or by co-extrusion.
- both individual and all layers of the plastic film by extrusion in particular by blown film extrusion and / or flat film extrusion (Cast extrusion), or preferably co-extrusion, in particular blown film coextrusion and / or flat film coextrusion (cast coextrusion) are formed, the latter being preferred.
- a doping of the layer (a) or further layers with additives these are used by mixing, if necessary as a masterbatch, with the polymer component (s) of the respective layer for processing. This mixing can be done dry in granules / powder or granules / granules form.
- it is also possible to add the additive to the molten polymer component (s) of the respective layer preferably by metering in an extruder used for the extrusion of the respective layer.
- the melts corresponding to the individual layers of the film used according to the invention as a packaging film are simultaneously and jointly coextruded through a round die or a flat die, the film thus obtained is stripped off on one or more roll (s) and the stretched Foil heat-set.
- Biaxial stretching can be performed sequentially or simultaneously.
- the sequential stretching is generally performed sequentially with the successive biaxial stretching, first being stretched longitudinally (in the machine direction) and transverse (perpendicular to the machine direction), being preferred.
- the polymer or the polymer mixture of the individual layers are compressed and liquefied in an extruder, wherein the optionally added additives can already be present in the polymer or in the polymer mixture.
- the melts are then simultaneously through a flat die (slot die) pressed, and the extruded multilayer film is drawn off on one or more draw-off rolls at a temperature of 10 to 100 ° C, preferably 10 to 50 ° C, wherein it cools and solidifies.
- the multilayer plastic film used according to the invention is then stretched either only longitudinally or longitudinally and transversely to the extrusion direction, which leads to an orientation of the molecular chains.
- the longitudinal stretching is preferably carried out at a temperature of 70 to 130 ° C, preferably 80 to 110 ° C, advantageously with the help of two according to the desired stretching ratio different fast-running rollers and optionally additional transverse stretching, preferably at a temperature of 120 to 180 ° C with the help of a corresponding clip frame. You can set the desired transverse stretching conditions. Stretching only in the machine direction is preferred according to the invention.
- the stretching of the film used according to the invention is preferably followed by its heat-setting (heat treatment), the film being kept at a temperature of 100 to 160 ° C. for about 0.1 to 10 seconds.
- the film according to the invention can optionally be equipped after intermediate storage with an optional release coating.
- the plastic film or packaging film used according to the invention is unembossed.
- the packaging film preferably consists of the above-described, at least monoaxially stretched, multilayer plastic film. These plastic films may optionally be connected to other plastic films and / or paper webs.
- the packaging films consist only of the above-described plastic films.
- the packaging films according to the invention may preferably be printed.
- a further subject of the present invention is a packaging made from a packaging film according to the invention, preferably a plastic film used according to the invention as a packaging film, preferably for adhesive articles of any kind, particularly preferably for self-adhesive articles of any kind, particularly preferably for individually packaged, adhesive articles, in particular for a single use.
- Another object of the present invention is a package of the packaging film according to the invention, preferably a plastic film according to the invention used as a packaging film for optionally self-adhesive hygiene articles, preferably for individually packaged, possibly folded, and / or optionally self-adhesive panty liners, sanitary napkins or incontinence articles especially for a single use.
- a plastic film according to the invention used as a packaging film for optionally self-adhesive hygiene articles, preferably for individually packaged, possibly folded, and / or optionally self-adhesive panty liners, sanitary napkins or incontinence articles especially for a single use.
- Each of the multilayer plastic films having the compositions given in Table II or Table III was prepared by coextrusion onto a blown film coextrusion line initially with a total layer thickness of 40 ⁇ m. After spreading the film tube, it was fed to a roll stretching machine and stretched in the longitudinal direction by a factor of 1: 4, so that the resulting total film thickness of 10 ⁇ m resulted.
- the physical properties specified in Table IV below were determined and reported in accordance with DIN EN ISO 527-3.
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Abstract
Description
Claims
Priority Applications (14)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HRP20220369TT HRP20220369T1 (hr) | 2014-03-21 | 2015-03-19 | Folija za pakiranje |
| RU2016136848A RU2685651C2 (ru) | 2014-03-21 | 2015-03-19 | Упаковочная пленка |
| JP2016557226A JP6500033B2 (ja) | 2014-03-21 | 2015-03-19 | 包装フィルム |
| SI201531810T SI3119603T1 (sl) | 2014-03-21 | 2015-03-19 | Pakirna folija |
| CA2942692A CA2942692C (en) | 2014-03-21 | 2015-03-19 | Packaging film |
| PL15712055T PL3119603T3 (pl) | 2014-03-21 | 2015-03-19 | Folia opakowaniowa |
| ES15712055T ES2907517T3 (es) | 2014-03-21 | 2015-03-19 | Lámina de envasado |
| EP15712055.1A EP3119603B1 (de) | 2014-03-21 | 2015-03-19 | Verpackungsfolie |
| CN201580014101.7A CN106132701B (zh) | 2014-03-21 | 2015-03-19 | 包装薄膜 |
| MYPI2016703346A MY184928A (en) | 2014-03-21 | 2015-03-19 | Packaging film |
| LTEPPCT/EP2015/000610T LT3119603T (lt) | 2014-03-21 | 2015-03-19 | Pakavimo plėvelė |
| RS20220271A RS63071B1 (sr) | 2014-03-21 | 2015-03-19 | Folija za pakovanje |
| DK15712055.1T DK3119603T3 (da) | 2014-03-21 | 2015-03-19 | Emballeringsfolie |
| US15/264,948 US10246235B2 (en) | 2014-03-21 | 2016-09-14 | Packaging film |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014010691.8A DE102014010691A1 (de) | 2014-03-21 | 2014-03-21 | Mehrschichtige Kunststofffolie mit Trennwirkung |
| DE102014004042 | 2014-03-21 | ||
| DE102014004042.9 | 2014-03-21 | ||
| DE102014010691.8 | 2014-03-21 | ||
| DE102014010986.0 | 2014-07-29 | ||
| DE102014010986.0A DE102014010986A1 (de) | 2014-03-21 | 2014-07-29 | Verpackungsfolie |
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| WO2015139843A1 true WO2015139843A1 (de) | 2015-09-24 |
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| PCT/EP2015/000611 Ceased WO2015139844A1 (de) | 2014-03-21 | 2015-03-19 | Mehrschichtige kunststofffolie mit trennwirkung |
| PCT/EP2015/000612 Ceased WO2015139845A1 (de) | 2014-03-21 | 2015-03-19 | Verpackung |
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| PCT/EP2015/000612 Ceased WO2015139845A1 (de) | 2014-03-21 | 2015-03-19 | Verpackung |
Country Status (17)
| Country | Link |
|---|---|
| US (3) | US20170001413A1 (de) |
| EP (3) | EP3119603B1 (de) |
| JP (3) | JP2017512679A (de) |
| CN (3) | CN106103087B (de) |
| CA (3) | CA2942703A1 (de) |
| DK (1) | DK3119603T3 (de) |
| ES (1) | ES2907517T3 (de) |
| HR (1) | HRP20220369T1 (de) |
| HU (1) | HUE057921T2 (de) |
| LT (1) | LT3119603T (de) |
| MY (1) | MY184928A (de) |
| PL (1) | PL3119603T3 (de) |
| PT (1) | PT3119603T (de) |
| RS (1) | RS63071B1 (de) |
| RU (3) | RU2685651C2 (de) |
| SI (1) | SI3119603T1 (de) |
| WO (3) | WO2015139843A1 (de) |
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- 2015-03-19 CA CA2942703A patent/CA2942703A1/en not_active Abandoned
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- 2015-03-19 CN CN201580014112.5A patent/CN106103087B/zh not_active Expired - Fee Related
- 2015-03-19 JP JP2016557222A patent/JP2017512679A/ja active Pending
- 2015-03-19 WO PCT/EP2015/000610 patent/WO2015139843A1/de not_active Ceased
- 2015-03-19 RU RU2016136846A patent/RU2016136846A/ru not_active Application Discontinuation
- 2015-03-19 ES ES15712055T patent/ES2907517T3/es active Active
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- 2015-03-19 CN CN201580014102.1A patent/CN106103078A/zh active Pending
- 2015-03-19 CN CN201580014101.7A patent/CN106132701B/zh active Active
- 2015-03-19 CA CA2942699A patent/CA2942699A1/en not_active Abandoned
- 2015-03-19 EP EP15712055.1A patent/EP3119603B1/de active Active
- 2015-03-19 PT PT157120551T patent/PT3119603T/pt unknown
- 2015-03-19 EP EP15712256.5A patent/EP3119605A1/de not_active Withdrawn
- 2015-03-19 JP JP2016557226A patent/JP6500033B2/ja active Active
- 2015-03-19 HR HRP20220369TT patent/HRP20220369T1/hr unknown
- 2015-03-19 DK DK15712055.1T patent/DK3119603T3/da active
- 2015-03-19 RS RS20220271A patent/RS63071B1/sr unknown
- 2015-03-19 MY MYPI2016703346A patent/MY184928A/en unknown
- 2015-03-19 LT LTEPPCT/EP2015/000610T patent/LT3119603T/lt unknown
- 2015-03-19 EP EP15712056.9A patent/EP3119604A1/de not_active Withdrawn
- 2015-03-19 PL PL15712055T patent/PL3119603T3/pl unknown
- 2015-03-19 HU HUE15712055A patent/HUE057921T2/hu unknown
- 2015-03-19 RU RU2016136847A patent/RU2676980C2/ru not_active IP Right Cessation
- 2015-03-19 WO PCT/EP2015/000612 patent/WO2015139845A1/de not_active Ceased
- 2015-03-19 JP JP2016557248A patent/JP2017511288A/ja active Pending
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2016
- 2016-09-14 US US15/264,848 patent/US20170001413A1/en not_active Abandoned
- 2016-09-14 US US15/264,916 patent/US20170015478A1/en not_active Abandoned
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| WO2011054434A1 (de) * | 2009-10-14 | 2011-05-12 | Huhtamaki Forchheim Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg | Klebefähige produkte mit einer geprägten trennfolie |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017016660A1 (de) * | 2015-07-28 | 2017-02-02 | Infiana Germany Gmbh & Co. Kg | Eine linear weiterreissbare, mehrschichtige polyolefinfolie |
| WO2019141792A1 (de) | 2018-01-22 | 2019-07-25 | Infiana Germany Gmbh & Co. Kg | Bedruckte und beschichtete trennfolie |
| DE102018101331A1 (de) | 2018-01-22 | 2019-07-25 | Infiana Germany Gmbh & Co. Kg | Bedruckte und beschichtete Trennfolie |
| EP3743480B1 (de) | 2018-01-22 | 2021-11-24 | Loparex Germany GmbH & Co. KG | Bedruckte und beschichtete trennfolie |
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