EP1334160A1 - Biologisch abbaubare aufreissstreifen sowie diese aufreissstreifen aufweisendes verpackungsmaterial - Google Patents
Biologisch abbaubare aufreissstreifen sowie diese aufreissstreifen aufweisendes verpackungsmaterialInfo
- Publication number
- EP1334160A1 EP1334160A1 EP01990382A EP01990382A EP1334160A1 EP 1334160 A1 EP1334160 A1 EP 1334160A1 EP 01990382 A EP01990382 A EP 01990382A EP 01990382 A EP01990382 A EP 01990382A EP 1334160 A1 EP1334160 A1 EP 1334160A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- biodegradable
- tear strip
- strip according
- tear
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- B65D75/66—Inserted or applied tearing-strings or like flexible elements
-
- 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
- B65D65/46—Applications of disintegrable, dissolvable or edible materials
- B65D65/466—Bio- or photodegradable packaging materials
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/255—Polyesters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/14—Layer or component removable to expose adhesive
- Y10T428/1471—Protective layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/14—Layer or component removable to expose adhesive
- Y10T428/1476—Release layer
Definitions
- Tear strips are generally used as an opening aid for food packaging and consumer goods. Examples include tobacco products, confectionery, storage media such as compact discs or music cassettes, bottle caps or pharmaceutical packaging.
- Typical packaging materials that have a tear strip as an opening aid are envelope films based on biaxially oriented polypropylene (BOPP), polyester (PET), cellophane or paper, as well as tubular bag packaging or vacuum packaging.
- BOPP biaxially oriented polypropylene
- PET polyester
- cellophane or paper as well as tubular bag packaging or vacuum packaging.
- tear strips hot-melt coated, thermally activated tear strips; Self-adhesive tear strips and tear strips with polyolefinic sealing layer, preferably for vacuum packaging.
- Such self-adhesive tear strips are constructed as follows: A surface of the polypropylene film is coated with silicone in order to obtain the necessary special release properties. The 2nd surface side is provided with a pressure sensitive adhesive. Both coatings must be well coordinated to ensure that the tear strip is always easy and even to unwind. During production, a print image can optionally be applied under the adhesive or silicone coating.
- the tear strip is produced from wide film webs. After applying the various coatings, the material is cut and wound up to the desired width of the tear strips, usually between 1, 6 and 2.5 mm.
- biodegradable packaging materials would be particularly desirable for this type of packaging.
- the invention therefore relates to a biodegradable tear strip made from a carrier film which has a sealing layer on one surface and, if appropriate, a release layer on the other surface, characterized in that at least the carrier film is monoaxially oriented and made of a biodegradable aliphatic polyester and / or copolyester exists.
- the carrier foils used according to the invention can meet the high mechanical demands placed on a tear strip.
- polyhydroxyalkanoates such as polyhydrooxybutyrates, polyhydroxyvalerates or mixtures thereof
- polylactides ie polyesters based on lactic acid, their copolymers or mixtures for producing the carrier film.
- the carrier film preferably has a thickness between 10 and 200 ⁇ m and a width between 1 and 100 mm.
- the thickness is preferably between 10 and 40 ⁇ m and the width between 1.5 and 10 mm, very particularly preferably between 1.5 and 5 mm.
- the carrier film is oriented at least monoaxially in the longitudinal direction, this stretching ratio being at least 1: 2, preferably at least 1: 2.5.
- the carrier film can also be biaxially oriented, preferably in the specified stretch ratio.
- the sealing layer is preferably a layer of self-adhesive biodegradable pressure-sensitive adhesives based on natural binders obtained from plant or animal products, preferably based on proteins and carbohydrates, such as. B. based on casein.
- the tear strips according to the invention with biodegradable sealing layers based on thermally activatable, i.e. H. low-sealing, biodegradable aliphatic polyester amides, such as those offered by Bayer AG as product BAK (404-004).
- the layer thickness of the sealing layers adhering by thermal activation is preferably 1 to 100 ⁇ m, particularly preferably 5 to 20 ⁇ m.
- the sealing layer can be applied to the carrier film in various ways, such as by adhesive lamination on the already oriented one Carrier film or by coextrusion of the carrier film and the sealing layer with a subsequent orientation.
- the biodegradable tear strips according to the invention were produced by the customary methods.
- the silicone or adhesive coating can also be applied using commercially available coating machines.
- the subsequent assembly by cutting and winding takes place using commercially available reel cutting machines and winding cabinets.
- the tear strips according to the invention can also be printed.
- the carrier film is printed in one or more work steps and the sealing layer of e.g. B. applied an adhesive melting at elevated temperatures.
- a release coating is then applied to the second surface of the carrier film in order to prevent the tear strips from blocking.
- the film webs are cut to the width of the tear strips and are preferably wound in different lengths.
- the carrier film can be printed in one or more colors. Any printing process that can be used for foils can be used. In particular, the Printing in typical packaging printing processes such as offset, screen, flexo, UV-flexo or gravure printing.
- Biodegradable printing inks are used for printing.
- printing inks can be based, for example, on binders such as nitrocellulose.
- a large number of the coloring pigments contained therein are also based on natural substances and can therefore be classified as biodegradable.
- fillers such as carbon black, calcium oxide or calcium carbonate.
- Biodegradable printing inks are commercially available. Since many naturally occurring pigments are thermally sufficiently stable to survive the relatively high temperatures in the manufacture of the carrier film without damage, the carrier film can also be colored.
- Another object of the invention is a packaging material which has the biodegradable tear strips according to the invention made of biodegradable material.
- the mechanical properties of the carrier film or the finished tear strip were determined by means of a tensile test according to DIN EN ISO 527 (DIN 53455), DIN 53363 and DIN 53457, and the thickness of the film according to DIN 53370.
- the low-pressure seal strength was determined to determine the adhesive strength of the pressure-sensitive adhesive of the sealing layer. This is the force required to separate a sealed seam produced under defined conditions (pressure, temperature, time). It is given in N and the strip width is added as an index (N / 15 mm).
- the seal strength test was carried out according to the following standard conditions: pressure 0.35 N / cm 2 , time 0.5 sec, temperature depending on the film type.
- a 15 mm wide measuring strip was cut from the center of the sealing seam produced, exactly in the film running direction, using a test strip cutter. In a tensile testing machine, the test strip is examined for seal strength by separating it perpendicular to the seal seam. The maximum value of the force occurring during tearing was given, which was read with an accuracy of 2%.
- the biodegradability is determined according to DIN 54900.
- a monoaxially stretched film made of polylactide, with a thickness of 35 ⁇ m, a maximum tensile force of 160 N / 15 mm, according to DIN 53455 an elongation at break> 10% and an elastic modulus of 3.6 Gpa was coated with a silicone acrylate.
- the solvent-free silicone acrylate contained a polymeric photoinitiator and was radically crosslinked by UV radiation under a protective gas atmosphere. The separation value was determined to be 0.1 N.
- a biodegradable pressure-sensitive hot melt adhesive based on casein was applied to the other surface of the carrier layer.
- the application quantity was 9.5 g / m 2 .
- the bond strength was determined to be 2.1 N / 15 mm.
- the film equipped in this way was cut onto 2 mm wide strips and on spools of 6,000 running meters. verspult.
- biodegradable tear strips according to the invention could be processed on a commercially available packaging machine without disturbance at a cycle frequency of 200 packages per minute.
- Example 2
- a monoaxially elongated film made of polyhydroxybutyrate with a thickness of 40 ⁇ m was provided with a biodegradable hot melt adhesive.
- the film equipped in this way was cut onto 2 mm wide tear strips and onto spools of 6,000 running meters. verspult.
- the tear strips according to the invention could easily be used on high-speed cigarette packaging machines.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Wrappers (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000154277 DE10054277A1 (de) | 2000-11-02 | 2000-11-02 | Aufreißstreifen sowie diesen Aufreißstreifen enthaltendes Verpackungsmaterial |
DE10054277 | 2000-11-02 | ||
PCT/EP2001/012678 WO2002036702A1 (de) | 2000-11-02 | 2001-11-02 | Biologisch abbaubare aufreissstreifen sowie diese aufreissstreifen aufweisendes verpackungsmaterial |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1334160A1 true EP1334160A1 (de) | 2003-08-13 |
Family
ID=7661877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01990382A Withdrawn EP1334160A1 (de) | 2000-11-02 | 2001-11-02 | Biologisch abbaubare aufreissstreifen sowie diese aufreissstreifen aufweisendes verpackungsmaterial |
Country Status (6)
Country | Link |
---|---|
US (1) | US20040067331A1 (de) |
EP (1) | EP1334160A1 (de) |
AU (1) | AU2002229528A1 (de) |
CA (1) | CA2427580A1 (de) |
DE (1) | DE10054277A1 (de) |
WO (1) | WO2002036702A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060188706A1 (en) * | 2003-06-13 | 2006-08-24 | Mitsuaki Kobayashi | Thermally activatable removable adhesive tapes |
JP2005002269A (ja) * | 2003-06-13 | 2005-01-06 | Three M Innovative Properties Co | 粘着テープ |
DE102005004789A1 (de) * | 2005-02-01 | 2006-08-03 | Logo tape Gesellschaft für Selbstklebebänder GmbH Co. KG | Biologisch abbaubare Folie und Folie/Kleber-System für ein Klebeband |
DE102009042008A1 (de) | 2009-09-21 | 2011-03-24 | Huhtamaki Forchheim Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg | Überwiegend biologisch abbaubare Trennfolie |
DE102011121143A1 (de) * | 2011-08-23 | 2013-02-28 | Huhtamaki Films Germany Gmbh & Co. Kg | Eine linear weiterreißbare Mehrschichtfolie |
RU2633566C2 (ru) * | 2012-06-28 | 2017-10-13 | ДАУ ГЛОБАЛ ТЕКНОЛОДЖИЗ ЭлЭлСи | Биоразлагаемые безвкладышные липкие ленты или этикетки |
DE102013004909A1 (de) | 2013-03-22 | 2014-10-09 | Jowat Ag | Neue Klebstoffzusammensetzungen auf Basis nachwachsender Rohstoffe und deren Verwendung |
BR112015026147A2 (pt) * | 2013-04-25 | 2017-07-25 | Infiana Germany Gmbh & Co Kg | filme de multicamadas passível de ser rasgado de modo linear |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3471639D1 (en) * | 1983-03-31 | 1988-07-07 | Payne Packaging Ltd | Improvements in or relating to tapes |
US4887714A (en) * | 1988-01-11 | 1989-12-19 | Kt Technologies Inc. | Pre-packaged pressure sensitive tear tape |
DE19615899A1 (de) * | 1996-04-22 | 1997-10-23 | Bayer Ag | Verwendung von biologisch abbaubaren Polyesteramiden als kompostierbare Schmelzklebstoffe |
DE69918233T2 (de) * | 1998-03-05 | 2005-02-24 | Mitsui Chemicals, Inc. | Polymilchsäure zusammensetzung und daraus hergestellter film |
WO1999046332A1 (fr) * | 1998-03-12 | 1999-09-16 | Daicel Chemical Industries, Ltd. | Composition de resine contenant de la lactone, objet moule dans cette composition, et film |
JPH11279393A (ja) * | 1998-03-31 | 1999-10-12 | Daicel Chem Ind Ltd | 生分解性テープ、包装・梱包用テープ及び粘着テープ |
-
2000
- 2000-11-02 DE DE2000154277 patent/DE10054277A1/de not_active Withdrawn
-
2001
- 2001-11-02 CA CA 2427580 patent/CA2427580A1/en not_active Abandoned
- 2001-11-02 AU AU2002229528A patent/AU2002229528A1/en not_active Abandoned
- 2001-11-02 US US10/415,617 patent/US20040067331A1/en not_active Abandoned
- 2001-11-02 WO PCT/EP2001/012678 patent/WO2002036702A1/de not_active Application Discontinuation
- 2001-11-02 EP EP01990382A patent/EP1334160A1/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO0236702A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE10054277A1 (de) | 2002-05-08 |
CA2427580A1 (en) | 2003-05-01 |
AU2002229528A1 (en) | 2002-05-15 |
WO2002036702A1 (de) | 2002-05-10 |
US20040067331A1 (en) | 2004-04-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20030602 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BRANDT, RAINER Inventor name: JACOBSEN, SVEN Inventor name: KUCKERTZ, CHRISTIAN |
|
17Q | First examination report despatched |
Effective date: 20040109 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20040921 |