EP2224043A1 - Utilisation de réseaux de polyesters bio-résorbables pour l'emballage d'aliments - Google Patents

Utilisation de réseaux de polyesters bio-résorbables pour l'emballage d'aliments Download PDF

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Publication number
EP2224043A1
EP2224043A1 EP10000961A EP10000961A EP2224043A1 EP 2224043 A1 EP2224043 A1 EP 2224043A1 EP 10000961 A EP10000961 A EP 10000961A EP 10000961 A EP10000961 A EP 10000961A EP 2224043 A1 EP2224043 A1 EP 2224043A1
Authority
EP
European Patent Office
Prior art keywords
poly
aliphatic
nets
threads
aliphatic polyester
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Withdrawn
Application number
EP10000961A
Other languages
German (de)
English (en)
Inventor
Kurt-Günter Dr. Berndt
Rex Dr. Delker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teijin Monofilament Germany GmbH
Original Assignee
Teijin Monofilament Germany GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Teijin Monofilament Germany GmbH filed Critical Teijin Monofilament Germany GmbH
Publication of EP2224043A1 publication Critical patent/EP2224043A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • D01F6/625—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters derived from hydroxy-carboxylic acids, e.g. lactones
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters

Definitions

  • the present invention relates to the use of nets of selected polyesters for food packaging.
  • the object of the present invention is the provision of packaging materials for foodstuffs which can easily be biodegraded after proper use.
  • the invention relates to the use of a network of threads made of aliphatic polyester for packaging food.
  • the network used according to the invention is constructed of threads. These are preferably monofilaments. However, other threads can also be used for the construction, for example yarns, such as fiber yarns or filament yarns.
  • the network building threads typically have titers in the range of 500 dtex to 80,000 dtex.
  • Filaments in the sense of this description may be filament yarns, spun yarns, threads or preferably monofilaments (wires).
  • aliphatic polyesters or mixtures thereof are used as thread-forming materials which build up the nets used according to the invention. These are known to be biodegradable polymers.
  • Aliphatic polyesters are polymers derived from an aliphatic monomer having a carboxyl group or a polyester-forming derivative such as a carboxylic acid ester group, and a hydroxyl group or a polyester-forming derivative such as an ether group; or they are polymers derived from a combination of an aliphatic monomer having two carboxyl groups or polyester-forming derivatives thereof with an aliphatic diol or polyester-forming derivatives thereof.
  • polyesters in addition to exclusively composed of aliphatic and / or cycloaliphatic monomers polyesters also includes those polyesters, in addition to aliphatic and / or cylcoaliphatic structural units small proportions of aromatic structural units, as long as the biodegradability of these polyesters is not adversely affected.
  • Polymers derived from aliphatic monomers having a carboxyl group and a hydroxyl group are also referred to as polyhydroxyalkanoates.
  • polyesters of this type are polyhydroxybutyrate, poly (hydroxybutyrate-co-hydroxyvalerate), poly (hydroxybutyrate-co-polyhydroxyhexanoate), polyglycolic acid, poly (epsilon-caprolactone), and most preferably polylactic acid.
  • Examples of preferred aliphatic polyesters derived from a combination of aliphatic dicarboxylic acids with an aliphatic dialcohol are poly (butylene succinate), poly (ethylene succinate), poly (butylene adipate), poly (ethylene adipate), poly (tetramethylene adipate / terephthalate) ,
  • the aliphatic polyesters used according to the invention may be of different types. Such polymers are thermoplastic and known to those skilled in the art as biodegradable polymers.
  • Particularly preferably used aliphatic polyesters are homopolymers or copolymers derived from lactic acid and optionally copolymerizable with aliphatic comonomers.
  • polyester threads used according to the invention for the construction of the network may optionally contain further additives in addition to the polymer or polymer mixture.
  • hydrolysis stabilizers examples include hydrolysis stabilizers, processing aids, antioxidants, UV stabilizers, plasticizers, lubricants, pigments, dyes, electrical conductivity-imparting additives, viscosity modifiers, crystallization accelerators or biocides.
  • polyester threads used according to the invention consist mainly of the aliphatic polyester.
  • the level of additives typically ranges from less than 10% by weight, preferably less than 5% by weight.
  • the cross-sectional shape of the threads used according to the invention may be arbitrary, for example round, oval or n-cornered, where n is greater than or equal to 3. Particularly preferred are monofilaments of non-round cross-section. These can be generated by appropriately shaped profile nozzles. In this way, one obtains ribbons that can cover a comparatively wide area of the space enclosed by the network.
  • the nets used in the invention are characterized by excellent biodegradability.
  • the nets can be prepared in a manner known to those skilled in the art and processed in the usual way. Examples of the production and processing of the nets can be found in the documents mentioned above.
  • nets are suitable for packaging foods that do not require special protection from the effects of oxygen or moisture.
  • the food can be packed directly in the net or that Net is part of another packaging, such as a container, such as a wooden box, which is enclosed in the net or is closed with it.
  • packaging items are fruits and vegetables, such as potatoes, corn, leeks, cabbages, apples, pears, bananas, oranges, grapefruits, strawberries, spiky or currants.
  • an aliphatic polyester (Nature Works Polylactide Resin 6400D, Fa. Nature Works LLC, Minnetonka, MN 55345 USA) was used in Schnitzel form. After drying of the raw material, it was melted in the extruder, fed to a spinning pack via a spinning pump, spun through fine bores into monofilaments, quenched in a water bath, then stretched in three stages under the action of heat, treated with preparation as a processing aid and wound up.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Artificial Filaments (AREA)
EP10000961A 2009-02-27 2010-01-30 Utilisation de réseaux de polyesters bio-résorbables pour l'emballage d'aliments Withdrawn EP2224043A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910010939 DE102009010939A1 (de) 2009-02-27 2009-02-27 Verwendung von Netzen aus biologisch abbaubaren Polyesetern zur Verpackung von Lebensmitteln

Publications (1)

Publication Number Publication Date
EP2224043A1 true EP2224043A1 (fr) 2010-09-01

Family

ID=42173803

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10000961A Withdrawn EP2224043A1 (fr) 2009-02-27 2010-01-30 Utilisation de réseaux de polyesters bio-résorbables pour l'emballage d'aliments

Country Status (2)

Country Link
EP (1) EP2224043A1 (fr)
DE (1) DE102009010939A1 (fr)

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03262430A (ja) 1990-03-13 1991-11-22 Gunze Ltd 漁網
WO1996038356A1 (fr) * 1995-06-01 1996-12-05 Flinpack S.R.L. Emballage et procede pour emballer des fruits
JPH10266216A (ja) 1997-03-28 1998-10-06 Nisshin Seimo Kk 植生ネット
JPH1180522A (ja) 1997-07-09 1999-03-26 Nisshinbo Ind Inc 生分解性プラスチック組成物及び生分解性プラスチックの生分解速度調節方法
JPH11280074A (ja) 1998-03-31 1999-10-12 Nisshoku Corp 生分解性ネットと植生基体および緑化工法
JP2001089649A (ja) 1999-09-22 2001-04-03 Riken Vinyl Industry Co Ltd 樹脂組成物および生分解性水切り袋
JP2001346463A (ja) 2000-06-05 2001-12-18 Yamada Jitsugyo Kk 生分解性海苔養殖網
JP2002159217A (ja) 2000-11-27 2002-06-04 Kanebo Ltd 植生ネット
JP2002176863A (ja) 2000-12-15 2002-06-25 Kanebo Ltd 農業用ネット
JP2004337116A (ja) 2003-05-19 2004-12-02 Kanebo Ltd 植物誘引ネット
JP2005113343A (ja) 2003-10-10 2005-04-28 Toray Ind Inc ネット
JP2005273082A (ja) 2004-03-25 2005-10-06 Toray Ind Inc 網
DE60305507T2 (de) 2002-08-13 2006-12-21 Ahlstrom Corp. Biologisch abbaubarer faserträger zum mulchen von böden
WO2007047999A1 (fr) * 2005-10-21 2007-04-26 Clemson University Matières polymériques composites formées à partir de ressources renouvelables
DE60315780T2 (de) 2002-11-08 2008-06-05 Nisshinbo Industries, Inc. Biologisch abbaubare Plastikzusammensetzung, die damit hergestellten Gegenstände und eine Methode zur Kontrolle der biologischen Abbaurate
EP2006082A2 (fr) * 2007-06-20 2008-12-24 Giro GH S.A. Bande plastique et emballage fabriqué à partir de ladite bande
US20090266818A1 (en) * 2008-04-23 2009-10-29 Tomapure Inc. Package for perishable goods

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03262430A (ja) 1990-03-13 1991-11-22 Gunze Ltd 漁網
WO1996038356A1 (fr) * 1995-06-01 1996-12-05 Flinpack S.R.L. Emballage et procede pour emballer des fruits
JPH10266216A (ja) 1997-03-28 1998-10-06 Nisshin Seimo Kk 植生ネット
JPH1180522A (ja) 1997-07-09 1999-03-26 Nisshinbo Ind Inc 生分解性プラスチック組成物及び生分解性プラスチックの生分解速度調節方法
JPH11280074A (ja) 1998-03-31 1999-10-12 Nisshoku Corp 生分解性ネットと植生基体および緑化工法
JP2001089649A (ja) 1999-09-22 2001-04-03 Riken Vinyl Industry Co Ltd 樹脂組成物および生分解性水切り袋
JP2001346463A (ja) 2000-06-05 2001-12-18 Yamada Jitsugyo Kk 生分解性海苔養殖網
JP2002159217A (ja) 2000-11-27 2002-06-04 Kanebo Ltd 植生ネット
JP2002176863A (ja) 2000-12-15 2002-06-25 Kanebo Ltd 農業用ネット
DE60305507T2 (de) 2002-08-13 2006-12-21 Ahlstrom Corp. Biologisch abbaubarer faserträger zum mulchen von böden
DE60315780T2 (de) 2002-11-08 2008-06-05 Nisshinbo Industries, Inc. Biologisch abbaubare Plastikzusammensetzung, die damit hergestellten Gegenstände und eine Methode zur Kontrolle der biologischen Abbaurate
JP2004337116A (ja) 2003-05-19 2004-12-02 Kanebo Ltd 植物誘引ネット
JP2005113343A (ja) 2003-10-10 2005-04-28 Toray Ind Inc ネット
JP2005273082A (ja) 2004-03-25 2005-10-06 Toray Ind Inc 網
WO2007047999A1 (fr) * 2005-10-21 2007-04-26 Clemson University Matières polymériques composites formées à partir de ressources renouvelables
EP2006082A2 (fr) * 2007-06-20 2008-12-24 Giro GH S.A. Bande plastique et emballage fabriqué à partir de ladite bande
US20090266818A1 (en) * 2008-04-23 2009-10-29 Tomapure Inc. Package for perishable goods

Also Published As

Publication number Publication date
DE102009010939A1 (de) 2010-09-02

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