EP1132507A1 - Formkörper für Transport, Verpackung, Lagerung und Behandlung von Lebensmitteln - Google Patents
Formkörper für Transport, Verpackung, Lagerung und Behandlung von Lebensmitteln Download PDFInfo
- Publication number
- EP1132507A1 EP1132507A1 EP01104076A EP01104076A EP1132507A1 EP 1132507 A1 EP1132507 A1 EP 1132507A1 EP 01104076 A EP01104076 A EP 01104076A EP 01104076 A EP01104076 A EP 01104076A EP 1132507 A1 EP1132507 A1 EP 1132507A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaped body
- monofilaments
- flat
- shaped
- food
- 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.)
- Granted
Links
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
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
-
- 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
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
-
- 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
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/1362—Textile, fabric, cloth, or pile containing [e.g., web, net, woven, knitted, mesh, nonwoven, matted, etc.]
-
- 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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
Definitions
- the invention relates to moldings and processes for their production, which as Means for the transportation, packaging, storage and treatment of food are used and which are made up of monofilaments based on polyesters, the required monofilaments and processes for their production.
- Monofilaments based on polyesters have been known for a long time and are based on the used in various fields of technology, e.g. in the form of technical Textile materials such as fabrics used in the press section of paper machines reach.
- hydrolysis resistance and mechanical properties such as flexural strength and splice resistance.
- these food contact agents do not Contain substances that diffuse out of the agent or are dissolved out can and then penetrate the food. It is also important that this Agents are not only resistant to hydrolysis but are also largely resistant to chemical substances used in the treatment of food from the food can step out yourself. In particular, this also includes organic acids Fats, esters and the like.
- the object of the invention is therefore to provide food-compatible agents places with which food is transported, packaged, stored and can also be in direct contact during treatment, which is characterized by improved abrasion, especially due to improved abrasion resistance distinguish that no abraded particles and harmful during contact Release substances into the food that are simple, economical and safe to produce are and which correspond to the requirements and demands that are made of means that come into contact with food today.
- This object is achieved by food-compatible flat shaped articles or from flat shaped articles made-up shaped articles such as woven fabrics, knitted fabrics, knitted fabrics, Non-woven, sheet-like structures such as grids, net-shaped fabrics and the like or from these flat shaped articles, shaped articles such as sacks, bags, Nets, sieves, filters, conveyor belts and the like, containing monofilaments on the Basis of polyester, which contain 0.5 to 3.5 wt .-% of a polycarbonate.
- the moldings according to the invention preferably contain monofilaments, the one Knife abrasion resistance from 55,000 to 170,000 abrasion cycles.
- Prefers the polyester from which the monofilaments are made is free of sealing agents such as mono- or polycarbodiimides.
- Another object of the invention are food-compatible monofilaments on the Basis of polyester containing 0.5 to 3.5 wt .-% of a polycarbonate.
- these food-compatible monofilaments have a knife abrasion resistance of 55,000 to 170,000 abrasion cycles.
- Another object of the invention is a method for producing flat Shaped bodies or shaped bodies assembled from flat shaped bodies such as Woven, knitted, crocheted, laid, spiral cloths or spiral sieves, Plug wires, sheet-like structures such as grids or reticular structures and the like or shaped articles made up from these flat shaped articles such as Nets, sacks, bags, sieves, filters and the like for transport, packaging, storage and treatment of food by using polyester with an addition of 0.5 to 3.5% by weight of a polycarbonate in the melt by extrusion to monofilaments spins and the monofilaments into flat shaped bodies such as fabrics, knitwear, Processed nets and the like and the flat shaped bodies, if necessary, into sacks, bags, Filters, conveyor belts and the like.
- flat shaped bodies such as Woven, knitted, crocheted, laid, spiral cloths or spiral sieves, Plug wires, sheet-like structures such as grids or reticular structures and the like or shaped articles made up from these
- Polyethylene terephthalate is preferably used as the polyester.
- the Intrinsic viscosity measured in dichloroacetic acid at 25 ° C, is preferably between 0.5 to 1.5 dl / g, especially 0.68 - 0.915 dl / g, but others can also Polyesters such as polybutylene terephthalate can be used.
- Polyesters such as polybutylene terephthalate can be used.
- the polyesters do not contain any sealing agents such as mono- or polycarbodiimides.
- the flat moldings which consist of monofilaments based on polyesters an addition of 0.5 to 3.5% by weight of a polycarbonate has been produced, such as fabrics, knitted fabrics, knitted fabrics and other knitted fabrics, spiral cloths or Spiral sieves, plug wires, nets and lattice-like fabrics can be used for Manufacture of ready-made articles such as bags, sacks, sieves, filters, conveyor belts and the like.
- the food-compatible monofilaments according to the invention can be used for production the flat shaped body or that composed of the flat shaped bodies Shaped bodies serve. These food-compatible monofilaments are built on the They are based on polyesters which contain 0.5 to 3.5% by weight of a polycarbonate preferably have a knife abrasion resistance of 55,000 to 170,000 Abrasion tours on; the knife abrasion resistance is determined according to the below described method determined.
- the polycarbonate is preferably homogeneous in Spread polyester.
- These monofilaments are preferably produced by a process in which a mixture of a polyester and 0.5 to 3.5% by weight of a polycarbonate from the Melt is spun, the monofilaments obtained are cooled in a spinning bath, stretched and wound up if necessary.
- the injection speed of the melt, spinning and stretching are so coordinated that the threads have a diameter of at least 0.07, preferably 0.1 - 1.5 mm.
- polyester in particular from polyethylene terephthalate, the 0.5 to 3.5% by weight polycarbonate is added, produced from the melt by extrusion through nozzles monofilaments.
- Polyethylene terephthalate is preferably used as the polyester.
- polybutylene terephthalate or copolyester such as in particular Polyethylene terephthalate, in which the building block terephthalic acid partially through Isophthalic acid is substituted.
- the raw materials namely the polyester and the polycarbonate, work well together mixed and then melted in an extruder, filtered in a spin pack and spun through a spinneret.
- the emerging melt threads are in a spinning bath, preferably a water bath, cooled (quenched).
- the Spinning bath generally has a temperature of 30 to 90, in particular 70 ° C.
- the Threads are then wound or drawn off, with a Speed that is greater than the spray speed of the melt.
- the Spinning delay is generally 1: 1.5 to 1: 6.0, preferably 1: 3 to 1: 5, that Spinning take-off speed is 5 to about 40 m per minute.
- the spun thread (monofilament) thus produced is then post-drawn, preferably post-stretched in several stages, in particular 1-, 2- or 3-stage, and with an overall ratio of 1: 4 to 1: 8.
- the mechanical properties such as the initial modulus, Maximum tensile force, retraction force stretch but also the loop strength and the Knot strength and shrinkage are affected. Of course it also depends the titer of the resulting monofilament from stretching. Flow rate and Stretching are coordinated so that the resulting monofilaments on Finally have a diameter of at least 0.07 mm. As part of the Invention have diameters of 0.07 to 1.5 mm in particular proven.
- the monofilaments produced in this way are then further processed into flat shaped bodies, ie into fabrics, flat knitted fabrics such as knitted fabrics, knitted fabrics, spiral fabrics or spiral sieves, plug wires, to flat-shaped structures with a network structure such as lattices, in which Monofilaments are parallel in one direction and on top of them are multitudes of monofilaments lie, which intersect with the first layer of the monofilament, namely an angle of about 10 ° to 90 °, wherein the monofilament can be fixed at the crossing points, for example by fusing.
- the corresponding fabrics can then be used as such or can also be made up into sacks, bags, nets, conveyor belts, filters and the same.
- Conveyor belts made from those described above are particularly advantageous Monofilaments are built up and used to dry food, especially of foods such as dried fruit, pasta and the like. In doing so the food is led through drying zones by means of these conveyor belts.
- the knife abrasion test for determining the knife abrasion resistance is as follows carried out. This is done by Zweigle, Reutlingen distributed device G550 used.
- a ceramic tube embedded in a metal rail moves beneath the samples with a diameter of 1 mm cyclically back and forth.
- the manufacturer of the Ceramic tube is from Degussit, the tube can be obtained from Friatec AG Mannheim can be obtained.
- the stroke is 70 mm. Because of the constant The monofilaments become abrasive due to the extremely hard ceramic surface damaged until they tear under the influence of the preload.
- An automatic counter records the number of each individual monofilament Abrasion cycles until breakage. The number of cycles achieved for all 10 samples becomes Statistical values determined (median value), which is a measure of the abrasion resistance of the tested monofilament.
- the preload is set to 0.135 cN / tex, rounded to 10 cN.
- the hydrolysis resistance of the moldings according to the invention is also outstanding.
- the durability of conveyor belts over the wet or wet foods are transported, improved.
- a monofilament was produced from an in a otherwise known manner Polyethylene terephthalate granules with an intrinsic viscosity (IV) of 0.88 dl / g, where the polyethylene terephthalate granules an amount of 0.93 wt .-% (based on the Amount of the polyethylene terephthalate granules) of a polycarbonate granules (Brand name Makrolon from Bayer) was added and this mixture in otherwise known manner to a monofilament with a diameter of 0.50mm was processed.
- a sample set of 10 monofilaments was tested in the knife scrubber tester G550 from Zweigle. The median of the Scrubbing cycles to break were 116,409 trips. It is therefore around 25% higher the value of Comparative Example 2.
- a monofilament was produced from an in a otherwise known manner Polyethylene terephthalate granules with an intrinsic viscosity (IV) of 0.88 dl / g. in which the polyethylene terephthalate granules an amount of 1.40 wt .-% (based on the Amount of the polyethylene terephthalate granules) of a polycarbonate granules (Brand name Makrolon from Bayer) was added and this mixture in otherwise known manner to a monofilament with a diameter of 0.50mm was processed.
- a sample set of 10 monofilaments was tested in the knife scrubber tester G550 from Zweigle. The median of the The abrasion cycles to break were 155,729 tours, which is almost 70% higher the value in Comparative Example 2.
- a monofilament was produced from an in a otherwise known manner Polyethylene terephthalate granules with an intrinsic viscosity (IV) of 0.88 dl / g. in which the polyethylene terephthalate granules an amount of 1.90 wt .-% (based on the Amount of the polyethylene terephthalate granules) of a polycarbonate granules (Brand name Makrolon from Bayer) was added and this mixture in otherwise known manner to a monofilament with a diameter of 0.50mm was processed.
- a sample set of 10 monofilaments was tested in the knife scrubber tester G550 from Zweigle. The median of the Scrub cycles to break were 131,921 trips. There is also a remarkable one here Increase in knife abrasion resistance compared to comparative example 2.
Landscapes
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Artificial Filaments (AREA)
- Wrappers (AREA)
- Woven Fabrics (AREA)
- Filtering Materials (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Medicines Containing Plant Substances (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
- Making Paper Articles (AREA)
- Knitting Of Fabric (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Polyesters Or Polycarbonates (AREA)
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
- Harvesting Machines For Specific Crops (AREA)
Abstract
Description
Monofile in einer Richtung parallel liegen und auf denen dann wiederum Scharen von Monofilen
liegen, die sich mit der ersten Lage der Monofile kreuzen und zwar einen Winkel von etwa 10° bis 90°, wobei die Monofile an den Kreuzungspunkten fixiert sein können, z.B. durch Verschmelzen.
Claims (15)
- Lebensmittelverträgliche flächige Formkörper oder aus flächigen Formkörpern konfektionierte Formkörper wie Gewebe, Gewirke, Gestricke, Gelege, Spiraltücher bzw. Spiralsiebe, Steckdrähte, flächenförmige Gebilde wie Gitter, netzförmige Flächengebilde und dergleichen oder aus diesen flächigen Formkörpern konfektionierte Formkörper wie Säcke, Beutel, Netze, Siebe, Filter, Transportbänder und dergleichen, enthaltend Monofile auf der Basis von Polyester, die 0,5 bis 3,5 Gew.-% eines Polycarbonats enthalten.
- Formkörper nach Anspruch 1, dadurch gekennzeichnet, daß die Monofile eine Messerscheuerfestigkeit von 55.000 bis 170.000 Scheuertouren aufweisen.
- Formkörper nach Anspruch loder 2, dadurch gekennzeichnet, daß der Polyester frei von Verschlußmitteln wie Mono- oder Polycarbodiimide ist.
- Formkörper nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß der Formkörper ein Gewebe ist.
- Formkörper nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß der Formkörper eine Maschenware ist.
- Formkörper nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß der Formkörper ein Netz ist.
- Formkörper nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß der Formkörper ein Beutel ist.
- Formkörper nach Anspruch 4, dadurch gekennzeichnet, daß der Formkörper ein Sieb ist.
- Formkörper nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß der Formkörper ein Filter ist.
- Formkörper nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß der Formkörper ein Transportband ist.
- Lebensmittelverträgliche Monofile auf der Basis von Polyester enthaltend 0,5 bis 3,5 Gewichts-% eines Polycarbonats.
- Lebensmittelverträgliche Monofile nach Anspruch 11, dadurch gekennzeichnet, daß die Monofile eine Messerscheuerfestigkeit von 55.000 bis 170.000 Scheuertouren aufweisen.
- Verfahren zur Herstellung von flächigen Formkörpern oder aus flächigen Formkörpern konfektionierte Formkörper wie Geweben,Gewirken, Gestricken, Gelegen, Spiraltüchern bzw. Spiralsieben, Steckdrähten, flächenförmigen Gebilden wie Gitter oder netzförmigen Flächengebilden und dergleichen oder aus diesen flächigen Formkörpern konfektionierte Formkörper wie Netzen, Säcken, Beuteln, Sieben, Filtern und dgl. für Transport, Verpackung, Lagerung und Behandlung von Lebensmitteln, indem man Polyester mit einem Zusatz von 0,5 bis 3,5 Gewichts-% eines Polycarbonats in der Schmelze durch Extrusion zu Monofilen verspinnt und die Monofile zu flächigen Formkörpern wie Geweben, Maschenwaren, Netzen und dgl. verarbeitet und die flächigen Formkörper ggf. zu Säcken, Beuteln, Filtern, Transportbändern und dgl. konfektioniert.
- Verfahren nach Anspruch 13, dadurch gekennzeichnet, daß man als Polyester Polyethylenterephthalat verwendet.
- Verfahren nach einem der Ansprüche 13 oder 14, dadurch gekennzeichnet, daß der verwendete Polyester frei von Verschlußmitteln wie Mono- oder Polycarbodiimiden ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10008845A DE10008845C2 (de) | 2000-02-25 | 2000-02-25 | Formkörper für Transport, Verpackung, Lagerung und Behandlung von Lebensmitteln |
DE10008845 | 2000-02-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1132507A1 true EP1132507A1 (de) | 2001-09-12 |
EP1132507B1 EP1132507B1 (de) | 2005-07-27 |
Family
ID=7632362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01104076A Expired - Lifetime EP1132507B1 (de) | 2000-02-25 | 2001-02-21 | Verwendung von Formkörpern für Transport, Verpackung, Lagerung und Behandlung von Lebensmitteln |
Country Status (9)
Country | Link |
---|---|
US (1) | US6517917B2 (de) |
EP (1) | EP1132507B1 (de) |
JP (1) | JP2001301811A (de) |
AT (1) | ATE300632T1 (de) |
DE (2) | DE10008845C2 (de) |
DK (1) | DK1132507T3 (de) |
ES (1) | ES2241700T3 (de) |
NO (1) | NO20010901L (de) |
PL (1) | PL346087A1 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56118912A (en) * | 1980-02-15 | 1981-09-18 | Teijin Ltd | Preparation of polyester fiber having high tenacity |
JPS57161137A (en) * | 1981-03-25 | 1982-10-04 | Teijin Ltd | Polyester sewing machine yarn |
EP0342563A2 (de) | 1988-05-14 | 1989-11-23 | Hoechst Aktiengesellschaft | Biegefeste Polyesterfilamente, ihre Herstellung und Verwendung |
EP0976854A1 (de) * | 1998-07-29 | 2000-02-02 | Johns Manville International, Inc. | Monofile Bikomponentenfäden des Kernmanteltyps |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE342563C (de) * | 1918-05-30 | 1921-10-20 | Albert Petermann | Steuerung fuer die Einspannvorrichtung von automatischen Drehbaenken |
US4783496A (en) * | 1985-10-04 | 1988-11-08 | Willi Moller | Shaped bodies of plastic material having high elasticity and high adhesive characteristics |
-
2000
- 2000-02-25 DE DE10008845A patent/DE10008845C2/de not_active Expired - Fee Related
-
2001
- 2001-02-21 AT AT01104076T patent/ATE300632T1/de not_active IP Right Cessation
- 2001-02-21 DE DE50106843T patent/DE50106843D1/de not_active Expired - Lifetime
- 2001-02-21 ES ES01104076T patent/ES2241700T3/es not_active Expired - Lifetime
- 2001-02-21 EP EP01104076A patent/EP1132507B1/de not_active Expired - Lifetime
- 2001-02-21 DK DK01104076T patent/DK1132507T3/da active
- 2001-02-22 NO NO20010901A patent/NO20010901L/no not_active Application Discontinuation
- 2001-02-23 US US09/790,536 patent/US6517917B2/en not_active Expired - Fee Related
- 2001-02-23 PL PL01346087A patent/PL346087A1/xx not_active Application Discontinuation
- 2001-02-26 JP JP2001050172A patent/JP2001301811A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56118912A (en) * | 1980-02-15 | 1981-09-18 | Teijin Ltd | Preparation of polyester fiber having high tenacity |
JPS57161137A (en) * | 1981-03-25 | 1982-10-04 | Teijin Ltd | Polyester sewing machine yarn |
EP0342563A2 (de) | 1988-05-14 | 1989-11-23 | Hoechst Aktiengesellschaft | Biegefeste Polyesterfilamente, ihre Herstellung und Verwendung |
EP0976854A1 (de) * | 1998-07-29 | 2000-02-02 | Johns Manville International, Inc. | Monofile Bikomponentenfäden des Kernmanteltyps |
Non-Patent Citations (2)
Title |
---|
DATABASE WPI Section Ch Week 198245, Derwent World Patents Index; Class A23, AN 1982-96622E, XP002171721 * |
PATENT ABSTRACTS OF JAPAN vol. 005, no. 195 (C - 083) 11 December 1981 (1981-12-11) * |
Also Published As
Publication number | Publication date |
---|---|
ATE300632T1 (de) | 2005-08-15 |
DE50106843D1 (de) | 2005-09-01 |
DK1132507T3 (da) | 2005-09-19 |
US6517917B2 (en) | 2003-02-11 |
NO20010901L (no) | 2001-08-27 |
US20010018103A1 (en) | 2001-08-30 |
NO20010901D0 (no) | 2001-02-22 |
DE10008845C2 (de) | 2002-11-14 |
JP2001301811A (ja) | 2001-10-31 |
ES2241700T3 (es) | 2005-11-01 |
PL346087A1 (en) | 2001-08-27 |
EP1132507B1 (de) | 2005-07-27 |
DE10008845A1 (de) | 2001-09-06 |
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