DE4006413A1 - Stretch film for e.g. sealing green fodder - is coated with aq. dispersion of specific polymer adhesive on one or both sides, produces airtight wrap, and is physiologically harmless - Google Patents

Stretch film for e.g. sealing green fodder - is coated with aq. dispersion of specific polymer adhesive on one or both sides, produces airtight wrap, and is physiologically harmless

Info

Publication number
DE4006413A1
DE4006413A1 DE4006413A DE4006413A DE4006413A1 DE 4006413 A1 DE4006413 A1 DE 4006413A1 DE 4006413 A DE4006413 A DE 4006413A DE 4006413 A DE4006413 A DE 4006413A DE 4006413 A1 DE4006413 A1 DE 4006413A1
Authority
DE
Germany
Prior art keywords
dispersion
roller
film
stretch film
wrapping
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
Application number
DE4006413A
Other languages
German (de)
Inventor
Heinrich Oggesen
Herbert Letz
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.)
Lakufol Kunststoffe & Co GmbH
Original Assignee
Lakufol Kunststoffe & Co 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 Lakufol Kunststoffe & Co GmbH filed Critical Lakufol Kunststoffe & Co GmbH
Priority to DE4006413A priority Critical patent/DE4006413A1/en
Publication of DE4006413A1 publication Critical patent/DE4006413A1/en
Ceased legal-status Critical Current

Links

Classifications

    • 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

Abstract

A stretch film, for wrapping round packages, is coated with an adhesive dispersion on at least one side. It can have an uncoated strip on each side. To produce the material a film (1) is drawn between a rubberised roller (3) and a metal backing roller (4) and then reeled. This roller (3) touches a metal engraved roller (5) whose surface has a fine relief pattern so as to pick up a liq. dispersion of adhesive from or adjacent rubber roller (6). This last roller (6) dips into a tank (7) of the aq. dispersion (8). All rollers (3-7) are driven. When the finished stretch film is used for wrapping purposes and water escapes from the coating this provides an air-tight seal. The prod. is partic. suitable for use in wrapping green fodders for silage. If the film is left with an uncoated strip a few mm wide this prevents sticking between layers. Suitable adhesive dispersions are modified terpolymer of ethylenevinylacetate-acrylate, or its mixt. with ethylene-vinylacetate, or acrylicester-ethylene copolymer plus additives. ADVANTAGE - The film provides an absolutely air-tight wrap which retains its seal over long periods. It therefore does not affect the environment. It is free from organic solvents. It is physiologically harmless and therefore suitable for foodstuffs.

Description

Die Erfindung betrifft eine Stretchfolie, wie sie zum Umwickeln von Packgut, Paletten etc., verwendet wird.The invention relates to a stretch film as used for wrapping of packaged goods, pallets etc. is used.

Es ist bekannt, Güter der o. a. Art dadurch zu verpacken, daß die Stretchfolie wendelförmig um das Packgut herumgewickelt wird. Die Stretchfolie wird beim Einwickeln gedehnt, wodurch eine dichte Umhüllung erzielt wird.It is known to goods of the above. Kind of packaging that the Stretch film is wrapped helically around the packaged goods. The Stretch film is stretched when wrapped, creating a tight Wrapping is achieved.

In manchen Fällen kommt es darauf an, daß die Umhüllung besonders luftdicht ist. Diese Forderung besteht z. B. dann, wenn Grünfutter eingewickelt wird, das silieren soll, da hier kein Luftsauer­ stoff hinzutreten darf. Bei einer undichten Packung würde das Grünfutter faulen.In some cases it is important that the wrapping is special is airtight. This requirement exists e.g. B. when green fodder is wrapped, which should ensilage, since there is no air acid substance may be added. With a leaky pack, that would be Rotten green forage.

Der Erfindung liegt die Aufgabe zugrunde, eine Stretchfolie zu schaffen, welche ein absolut dichtes Verpacken von Packgut über längere Zeiträume ermöglicht, wobei die Umwelt nicht belastet wird.The invention has for its object to a stretch film create an absolutely tight packaging of packaged goods allows longer periods of time, while not polluting the environment becomes.

Diese Aufgabe ist erfindungsgemäß dadurch gelöst, daß die Stretch­ folie mindestens einseitig mit einem Dispersions-Haftkleber über­ zogen ist. Dadurch haften die einzelnen Lagen der Stretchfolie nach dem Einwickeln aneinander. Luftsauerstoff kann zum Pack­ gut nicht hinzutreten.This object is achieved in that the stretch film at least on one side with a dispersion pressure sensitive adhesive is moved. As a result, the individual layers of the stretch film adhere after wrapping each other. Atmospheric oxygen can go to the pack good not to go there.

Die Erfindung ist nachfolgend an Hand der Zeichnung näher erläu­ tert:
In der Zeichnung ist mit 1 eine Stretchfolie bezeichnet, die als Bahn aus einer Kammer 2 in Pfeilrichtung zwischen einer Trägerwalze 3 mit einer Gummioberfläche und einer Gegendruckwalze 4 mit einer Metalloberfläche hindurchgeführt und dann in nicht dargestellter Weise in einer Rolle aufgewickelt wird. Die Trägerwalze 3 steht in Kontakt mit einer Rasterwalze 5, deren metallische Oberfläche mit kleinen Näpfen versehen ist, welche flüssigen Dispersions-Haft­ kleber von einer Gummiwalze 6 aufnehmen. Die Gummiwalze 6 taucht in ein Gefäß 7 mit dem in Wasser dispergierten Dispersions-Haft­ kleber 8. Die Komponenten 3 bis 7 werden motorisch in Pfeilrichtung angetrieben.The invention is below tert with reference to the drawing:
In the drawing, 1 denotes a stretch film which is passed as a web from a chamber 2 in the direction of the arrow between a carrier roller 3 with a rubber surface and a counter-pressure roller 4 with a metal surface and then wound up in a roll in a manner not shown. The carrier roller 3 is in contact with an anilox roller 5 , the metallic surface of which is provided with small cups which absorb liquid dispersion adhesive from a rubber roller 6 . The rubber roller 6 dips into a vessel 7 with the dispersion adhesive 8 dispersed in water. 8 Components 3 to 7 are driven by a motor in the direction of the arrow.

Die Trägerwalze 3 trägt auf die Stretchfolie 1 einseitig eine Schicht 9 aus dem Dispersions-Haftkleber 8 auf. Wird die Stretch­ folie 1 später zum Einwickeln verwendet, so stellt der dann durch Wasserentzug ausgehärtete Dispersions-Haftkleber 8 eine dichte Packung sicher.The carrier roller 3 applies a layer 9 of the dispersion pressure sensitive adhesive 8 to the stretch film 1 on one side. If the stretch film 1 is later used for wrapping, the dispersion pressure-sensitive adhesive 8 , which has then hardened by water removal, ensures a tight packing.

Die mit der Schicht 9 versehene Stretchfolie 1 ist insbesondere zum Einwickeln von zu silierenden Grünfutterballen geeignet - jedoch auch für alle anderen Arten von Ballen. The stretch film 1 provided with the layer 9 is particularly suitable for wrapping green forage bales to be ensiled - but also for all other types of bales.

Die Beschichtung wird so vorgenommen, daß zumindest an beiden Seiten der Folienbahn ein Streifen von einigen Millimetern un­ beschichtet bleibt, um ein Verblocken der Folie zu verhindern, und somit ein einwandfreies Abwickeln selbst bei hoher Haftwirkung zu gewährleisten.The coating is carried out so that at least on both A strip of a few millimeters un remains coated to prevent the film from blocking and thus a perfect unwinding even with high adhesion to guarantee.

Bei der Herstellung von Folienbahnen in mehrfachem Nutzen wird im Bereich des Schnittes die Beschichtung ebenfalls ausgespart. Das ergibt dann zwangsläufig den oben beschriebenen unbeschichteten Seitenstreifen.In the production of film webs in multiple uses in Cut out the coating in the area of the cut. The then necessarily results in the uncoated described above Hard shoulder.

Sie eignet sich aber auch für andere Verpackungen, z. B. für den Palettenstretch, d. h. das Einwickeln von Packgut auf einer Palette.But it is also suitable for other packaging, e.g. B. for the Pallet stretch, d. H. the wrapping of packaged goods on one Palette.

Der Dispersions-Haftkleber ist umweltfreundlich, da er frei von Lösungsmitteln ist. Er ist unschädlich für das Grundwasser und physiologisch unbedenklich, also unschädlich für Lebens- oder Futtermittel.The dispersion pressure sensitive adhesive is environmentally friendly because it is free of Solvents. It is harmless to the groundwater and physiologically harmless, i.e. harmless to life or Feed.

Beispiele für einen geeigneten Dispersions-Haftkleber sind:
Modifiziertes, terpolymeres Ethylenvinylacetatacrylat,
Abmischungen der terpolymeren Dispersion mit Ethylen­ vinylacetat-Dispersion,
Acrylsäure-ester-Ethylen-Copolymer-Dispersion mit Zusatz von Stabilisatoren, Verdickungsmittln und Entschäumer.Examples of a suitable dispersion pressure sensitive adhesive are:
Modified, terpolymeric ethylene vinyl acetate acrylate,
Mixtures of the terpolymeric dispersion with ethylene-vinyl acetate dispersion,
Acrylic acid ester ethylene copolymer dispersion with the addition of stabilizers, thickeners and defoamers.

Claims (2)

1. Stretchfolie zum Umwickeln von Packgut, die mindestens einseitig mit einem Dispersions-Haftkleber überzogen ist.1. Stretch film for wrapping packaged goods that at least is coated on one side with a dispersion pressure sensitive adhesive. 2. Stretchfolie nach Anspruch 1 mit einem unbeschichteten Streifen an jeder Seite der Folienbahn.2. Stretch film according to claim 1 with an uncoated Stripes on each side of the film web.
DE4006413A 1990-03-01 1990-03-01 Stretch film for e.g. sealing green fodder - is coated with aq. dispersion of specific polymer adhesive on one or both sides, produces airtight wrap, and is physiologically harmless Ceased DE4006413A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4006413A DE4006413A1 (en) 1990-03-01 1990-03-01 Stretch film for e.g. sealing green fodder - is coated with aq. dispersion of specific polymer adhesive on one or both sides, produces airtight wrap, and is physiologically harmless

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4006413A DE4006413A1 (en) 1990-03-01 1990-03-01 Stretch film for e.g. sealing green fodder - is coated with aq. dispersion of specific polymer adhesive on one or both sides, produces airtight wrap, and is physiologically harmless

Publications (1)

Publication Number Publication Date
DE4006413A1 true DE4006413A1 (en) 1991-09-05

Family

ID=6401194

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4006413A Ceased DE4006413A1 (en) 1990-03-01 1990-03-01 Stretch film for e.g. sealing green fodder - is coated with aq. dispersion of specific polymer adhesive on one or both sides, produces airtight wrap, and is physiologically harmless

Country Status (1)

Country Link
DE (1) DE4006413A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2930590A1 (en) * 1978-07-27 1980-03-06 Gear Co M W BALE SHAPING DEVICE
DE3642513A1 (en) * 1986-12-12 1988-06-23 Helmut Schenke DEVICE FOR WINDING BIG BALES
DE3805822A1 (en) * 1988-02-25 1989-09-07 Philips Patentverwaltung ARRANGEMENT FOR PRESSING A PACK OF PAPER AGAINST SEPARATE ROLLERS

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2930590A1 (en) * 1978-07-27 1980-03-06 Gear Co M W BALE SHAPING DEVICE
DE3642513A1 (en) * 1986-12-12 1988-06-23 Helmut Schenke DEVICE FOR WINDING BIG BALES
DE3805822A1 (en) * 1988-02-25 1989-09-07 Philips Patentverwaltung ARRANGEMENT FOR PRESSING A PACK OF PAPER AGAINST SEPARATE ROLLERS

Similar Documents

Publication Publication Date Title
EP1353847B1 (en) Device for wrapping a stack of goods
DE1569876A1 (en) Adhesive composite material
DE3913131C2 (en)
DE60200038T2 (en) Packaging material, process for its production and packaging made from it
CH654265A5 (en) METHOD FOR OPENING AND LOADING A FLEXIBLE CONTAINER.
DE2607442A1 (en) EQUIPMENT FOR APPLICATION OF JOINT SEALS
DE2522546C2 (en) Process for impregnating the absorbent edges of a web of packaging material
EP0364837A1 (en) Labelling device for applying a label to an article, particularly a large label to a paper roll, and method for applying the label
DE4226644A1 (en) Packaging for adhesives and / or sealants
DE4006413A1 (en) Stretch film for e.g. sealing green fodder - is coated with aq. dispersion of specific polymer adhesive on one or both sides, produces airtight wrap, and is physiologically harmless
CH626935A5 (en)
DE19929844A1 (en) Liquid supply device
DE1629324A1 (en) Process for covering both sides of hydrophilic films
DE1577811C3 (en) Device for coating flat, level substrates with a liquid
DE202011106154U1 (en) Textile fabric
DE1611914C3 (en) Labeling machine for the all-round chain of angular, especially square, containers
DE2031881C3 (en) Adhesive
DE60031848T2 (en) Method and apparatus for packaging presensitized plates
DE2313870C2 (en) Use of an aqueous solution of a lignin compound as an anti-slip agent for sacks
DE1771287B1 (en) PROCESS FOR MANUFACTURING TRANSMISSION MATERIALS
EP1162248B1 (en) Covering for painting operations
DE3332202A1 (en) DEVICE FOR STORING, TRANSPORTING AND EXPOSURE A PHOTO-SENSITIVE FILM FOR A CAMERA
DE10147794A1 (en) Wrapping material for wrapping a bale
WO2013182446A1 (en) Roll packaging and method and device for producing roll packaging
EP0706883A1 (en) Process and device for moistening a paper web

Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8131 Rejection