EP3562671A1 - STEIGERUNG DER REIßFESTIGKEIT EINER MEHRSCHICHTIGEN FOLIE - Google Patents
STEIGERUNG DER REIßFESTIGKEIT EINER MEHRSCHICHTIGEN FOLIEInfo
- Publication number
- EP3562671A1 EP3562671A1 EP18713188.3A EP18713188A EP3562671A1 EP 3562671 A1 EP3562671 A1 EP 3562671A1 EP 18713188 A EP18713188 A EP 18713188A EP 3562671 A1 EP3562671 A1 EP 3562671A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- barrier arrangement
- film
- μιτι
- ratio
- layers
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- 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
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- 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
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- 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
- B29C48/22—Articles comprising two or more components, e.g. co-extruded layers the components being layers with means connecting the layers, e.g. tie layers or undercuts
-
- 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
- B32B27/32—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
- B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
-
- 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
- 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
- B32B2307/582—Tearability
-
- 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
-
- 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
- B32B2307/7244—Oxygen 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
- B32B2307/732—Dimensional 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
- B32B2410/00—Agriculture-related articles
Definitions
- the invention relates to a method for increasing the tear strength of a multilayer film, which has at least one barrier arrangement with a total thickness for reducing a gas permeability.
- multilayer films with barrier arrangements are used in devices for agricultural applications.
- An important application is, for example, silo hoses.
- Foil Hose Sealing is an efficient, flexible and environmentally friendly technology for preserving and storing all types of feed in a specially developed film tube.
- the film tube silage was developed for the ensiling of green waste, but nowadays a wide variety of substrates can be stored in silo hoses.
- silo hoses are used for the composting of organic material.
- silo hoses are used for example, also pressed chips as well as corn and grass silages are stored in silo hoses today.
- Silage is a feedstuff preserved by lactic acid fermentation for livestock, especially for ruminants.
- grass fodder including grass (grass silage), maize (maize silage), clover or even cereals (as whole whole silage) can be ensiled.
- the object of the invention is to provide a method with which the tear strength of films for agricultural use, in particular of silo hoses or films for soil treatment, can be increased.
- the process is intended to adapt films with one or more oxygen barrier arrangements in such a way that, furthermore, adequate protection against ingress of oxygen is ensured and at the same time the mechanical properties, in particular the tear resistance, are improved.
- This is to provide a film for agricultural applications, which has a high tensile strength at a low oxygen permeability and at the same time a relatively small thickness.
- the agricultural films of the invention must have a specific oxygen impermeability. Only in this way is a corresponding fermentation process during ensiling, e.g. ensured in Siloschlauch or impermeability to chemicals in Disin Stammionsfolien.
- the barrier arrangement must have a specific total thickness in order to reduce the gas permeability.
- the omission of the oxygen barrier arrangement substantially maintains the gas impermeability and at the same time significantly increases the tear strength of the film.
- the individual sublayers each have individual thicknesses which, in their entirety, again give the total thickness of the barrier arrangement.
- the oxygen permeability of the film according to the invention according to DIN 53380-3 at 23 ° C and 50% relative humidity is at most 500, preferably at most 250, in particular at most 100 m. -d-bar m -d-bar
- Oxygen permeability have one or more oxygen barrier layers with a certain total thickness can be efficiently increased by these oxygen barrier layers are divided. By dividing the oxygen barrier layers into several sublayers, the oxygen impermeability remains at a high level, and at the same time, the tear strength increases remarkably.
- the tear strength of the film in the longitudinal direction (MC) and / or transverse direction (TD) is more than 40
- the film has, after the division of the barrier arrangement, similar individual thicknesses of the divided layers, wherein the deviation amounts to a maximum of 20%, preferably a maximum of 10%, in particular a maximum of 5%.
- the barrier arrangement preferably comprises at least 50% by weight of materials from the group comprising polyamide, copolyamide, polyester, copolyester, polyethylene-vinyl alcohol, polyvinyl alcohol and / or mixtures thereof. It proves to be advantageous if the barrier arrangement in addition to these materials at most 20 wt .-% further polymeric ingredients, preferably 10 wt .-% further polymeric ingredients, in particular no further polymeric constituents.
- the barrier arrangement consists of polyamides and / or copolyamides, preferably mixtures of PA6, PA6 / 66, PA66, PA6 / 6T and / or other aliphatic, aromatic or partially aromatic polyamides or copolyamides.
- the barrier arrangement consists of polyamides and / or copolyamides, preferably mixtures of PA6, PA6 / 66, PA66, PA6 / 6T and / or other aliphatic, aromatic or partially aromatic polyamides or copolyamides.
- the barrier arrangement consists of polyamides and / or copolyamides, preferably mixtures of PA6, PA6 / 66, PA66, PA6 / 6T and / or other aliphatic, aromatic or partially aromatic polyamides or copolyamides.
- the film has outer layers of a polyolefin.
- One of these outer layers is facing the silage side or the bottom side, the other outer layer is preferably facing the atmosphere.
- Example 1 shows two multilayer films each having a thickness of 70 ⁇ , wherein in the right column, the mechanical properties of the film before the division are listed and in the left column, the mechanical properties of the film after a division of the barrier arrangement.
- the film has a barrier layer as a PA layer with a total thickness of 10 ⁇ on.
- the tensile strength according to Elmendorf DIN 53128 in the longitudinal direction (MD) is 12.6
- Embodiment 1 the tensile strength increases according to Elmendorf DIN 53128 in the longitudinal direction (MD) from 12.6 (right column) to 39.7 ⁇ (left column). Thus, by the application of the method according to the invention increases the tensile strength in the longitudinal direction (MD) by a factor of 3.15.
- the tensile strength according to Elmendorf DIN 53128 in the transverse direction (TD) increases from 14.8 to 51, 2 -2- by a factor of 3.46.
- the film Before dividing the barrier arrangement according to Example 1 (right column), the film has the following structure of the individual layers:
- metallocene LLDPE 13% by volume of metallocene LLDPE with additives, in particular antiblock additives
- the film After dividing the barrier arrangement according to Example 1 (left column), the film has the following structure of the individual layers:
- Table 2 shows a multilayer film with a thickness of 85 ⁇ , wherein in the right column, the mechanical properties of the film before the division are listed and in the left column, the mechanical properties of the division of the film after the division.
- the film has a barrier layer as a PA layer of 17 ⁇ (right column).
- the tear strength in the longitudinal direction (MD) is 6.3
- the polyamide barrier arrangement is divided into two layers each having an individual thickness of 8.5 ⁇ .
- the sum of the individual thicknesses of the barrier layers again give the total thickness of the barrier arrangement.
- the tear strength of the film increases significantly by the division of the barrier arrangement.
- the tensile strength in the longitudinal direction (MD) by a factor of 8.44.
- the tear strength in the transverse direction (TD) increases from 8.1 to 56.1 by a factor of 6.93.
- the film Before dividing the barrier arrangement (right-hand column), the film has the following structure of the individual layers:
- the film After dividing the barrier arrangement according to Example 2 (left column), the film has the following structure of the individual layers:
- Table 3 shows multilayer films having a thickness of 1 15 ⁇ .
- the left-hand column shows the mechanical properties of the film prior to splitting.
- the middle and the right column the mechanical properties of the films are listed after a division.
- the film has as Barherean himself a PA layer with a total thickness of 14 ⁇ on.
- the longitudinal tear strength (MD) Prior to the partitioning of the barrier arrangement, the longitudinal tear strength (MD) is 13.2.
- the TD tear resistance is 19.2
- the barrier arrangement is divided into two layers each.
- the barrier arrangement is divided into two equal thickness layers with a single thickness of 7 ⁇ each.
- the tensile strength increases from 13.2 to over 44.4 in the longitudinal direction by the factor ⁇ ⁇
- the barrier arrangement is divided into a layer having a thickness of 4 ⁇ and a layer having a thickness of 10 ⁇ .
- the barrier layer is split in a ratio of 1: 2.5.
- the tensile strength increases in the longitudinal direction of 13.2 to 15.1- to the ⁇ ⁇
- the film After dividing the barrier arrangement into two layers of the same thickness of 7 ⁇ m each, the film has the following structure of the individual layers:
- each one layer has a thickness of 4 ⁇ and
- a further layer of the barrier arrangement has a thickness of 10 ⁇ m, the film has the following structure of the individual layers:
- a silo tube according to the invention which comprises a multilayer film which has at least one barrier arrangement with a total thickness for reducing gas permeability, in which the barrier arrangement is divided into at least two layers, wherein the silo tube is a Tensile strength according to Elmendorf 53128 in the longitudinal direction (MD) and / or transverse direction TD, of more than 10, preferably more than 20, in particular more than 30, wherein the film has a ⁇
- a disinfection film according to the invention provided which has at least one barrier arrangement with a total thickness to reduce gas permeability, according to the invention the barrier arrangement to increase the tear strength is divided into at least two layers, so that the tensile strength according to Elmendorf DIN 53128 of the disinfecting film in the longitudinal direction MD and / or transverse direction TD is more than 10, preferably more than 20, in particular more than 30, ⁇ ⁇ ⁇
- the thickness of the film is less than 150 m, preferably less than 125 ⁇ , in particular less than 100 ⁇ .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017107060.5A DE102017107060A1 (de) | 2017-04-03 | 2017-04-03 | Steigerung der Reißfestigkeit einer mehrschichtigen Folie |
PCT/EP2018/057112 WO2018184838A1 (de) | 2017-04-03 | 2018-03-21 | STEIGERUNG DER REIßFESTIGKEIT EINER MEHRSCHICHTIGEN FOLIE |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3562671A1 true EP3562671A1 (de) | 2019-11-06 |
Family
ID=61768292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18713188.3A Withdrawn EP3562671A1 (de) | 2017-04-03 | 2018-03-21 | STEIGERUNG DER REIßFESTIGKEIT EINER MEHRSCHICHTIGEN FOLIE |
Country Status (7)
Country | Link |
---|---|
US (1) | US20200016876A1 (de) |
EP (1) | EP3562671A1 (de) |
AU (1) | AU2018249343B2 (de) |
CA (1) | CA3058681A1 (de) |
DE (1) | DE102017107060A1 (de) |
WO (1) | WO2018184838A1 (de) |
ZA (1) | ZA201905458B (de) |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AUPO684097A0 (en) * | 1997-05-16 | 1997-06-12 | Vector Europe Nv | Multilayer barrier packaging film |
IT243538Y1 (it) * | 1997-12-05 | 2002-03-05 | Ipm Ind Plastica Monregalese | Telone di foglia di materia plastica impermeabile all'aria percoprire prodotti in particolare prodotti agricoli insilati, come |
FR2794682B1 (fr) * | 1999-06-11 | 2002-06-21 | Cebal | Materiau barriere a micro-couches extrudees |
DE102006036844B3 (de) * | 2006-08-07 | 2008-01-03 | Kuhne Anlagenbau Gmbh | Mehrschichtige flächen- oder schlauchförmige Nahrungsmittelhülle oder -folie |
WO2008022324A2 (en) * | 2006-08-18 | 2008-02-21 | Pliant Corporation | Agricultural barrier films having superior tear strength properties |
DE102009052948B4 (de) | 2009-11-12 | 2013-05-29 | Rkw Se | Silageabdeckung |
DE102010046183A1 (de) | 2010-09-23 | 2012-03-29 | Innova 6. Beteiligungsgesellschaft Mbh | Vorrichtung zum Bearbeiten von Gut für eine Schlauchsilierung |
ITGE20110121A1 (it) * | 2011-10-25 | 2013-04-26 | Gamma Srl 2 | Film barriera multistrato ed uso di tale film barriera multistrato |
EP2785510A1 (de) * | 2011-11-28 | 2014-10-08 | Cryovac, Inc. | Mehrschichtige folien auf polyesterbasis |
US20150033669A1 (en) * | 2013-07-31 | 2015-02-05 | Pregis Innovative Packaging, Inc. | Multilayer film with enhanced interlayer adhesion |
WO2015160861A1 (en) * | 2014-04-14 | 2015-10-22 | Pregis Innovative Packaging Llc | Bi-directional flexible structure with angled perforations |
WO2015160862A1 (en) * | 2014-04-14 | 2015-10-22 | Pregis Innovative Packaging Llc | Flexible structure with perforation-free inflation channel |
MX2017009136A (es) * | 2015-01-16 | 2018-02-26 | Coveris Holding Corp | Peliculas de multiples capas y metodos de fabricacion y uso de las mismas. |
US10875286B2 (en) * | 2015-04-02 | 2020-12-29 | Clysar Llc | Multilayer shrink film with scission layer |
-
2017
- 2017-04-03 DE DE102017107060.5A patent/DE102017107060A1/de not_active Withdrawn
-
2018
- 2018-03-21 EP EP18713188.3A patent/EP3562671A1/de not_active Withdrawn
- 2018-03-21 CA CA3058681A patent/CA3058681A1/en not_active Abandoned
- 2018-03-21 US US16/489,527 patent/US20200016876A1/en not_active Abandoned
- 2018-03-21 WO PCT/EP2018/057112 patent/WO2018184838A1/de unknown
- 2018-03-21 AU AU2018249343A patent/AU2018249343B2/en not_active Ceased
-
2019
- 2019-08-19 ZA ZA2019/05458A patent/ZA201905458B/en unknown
Also Published As
Publication number | Publication date |
---|---|
AU2018249343A1 (en) | 2019-08-29 |
ZA201905458B (en) | 2020-05-27 |
CA3058681A1 (en) | 2018-10-11 |
WO2018184838A1 (de) | 2018-10-11 |
US20200016876A1 (en) | 2020-01-16 |
DE102017107060A1 (de) | 2018-10-04 |
AU2018249343B2 (en) | 2020-09-10 |
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