DE19808425A1 - Composite film manufacturing process gives a film with sufficient thickness for use in hygienic products without having to use excessively thick material - Google Patents
Composite film manufacturing process gives a film with sufficient thickness for use in hygienic products without having to use excessively thick materialInfo
- Publication number
- DE19808425A1 DE19808425A1 DE1998108425 DE19808425A DE19808425A1 DE 19808425 A1 DE19808425 A1 DE 19808425A1 DE 1998108425 DE1998108425 DE 1998108425 DE 19808425 A DE19808425 A DE 19808425A DE 19808425 A1 DE19808425 A1 DE 19808425A1
- Authority
- DE
- Germany
- Prior art keywords
- film
- plastic film
- fiber material
- plastic
- composite
- 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- Withdrawn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
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 title claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000002985 plastic film Substances 0.000 claims abstract description 21
- 229920006255 plastic film Polymers 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000000853 adhesive Substances 0.000 claims abstract description 9
- 230000001070 adhesive effect Effects 0.000 claims abstract description 9
- 239000002657 fibrous material Substances 0.000 claims description 12
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 2
- 239000012939 laminating adhesive Substances 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 239000000835 fiber Substances 0.000 abstract 3
- 238000010030 laminating Methods 0.000 abstract 2
- 239000012943 hotmelt Substances 0.000 description 2
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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
-
- 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
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
- B32B2038/047—Perforating
-
- 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
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/10—Fibres of continuous length
- B32B2305/20—Fibres of continuous length in the form of a non-woven mat
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
Landscapes
- Laminated Bodies (AREA)
- Wrappers (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zum Herstellen einer Verbundfolie aus einer Kunststoff-Folie und einer Bahn aus Fasermaterial wie z. B. Non Woven, die miteinander verbunden werden.The invention relates to a method for producing a composite film a plastic film and a sheet of fiber material such. B. Non Woven, the be connected to each other.
Derartige Verbundfolien werden überwiegend im Hygienebereich eingesetzt; dabei werden textilähnliches Aussehen und Eindruck gewünscht. Um dies zu erreichen ist eine gewisse Dicke des Verbundes vorteilhaft.Such composite films are mainly used in the hygiene sector; there textile-like appearance and impression are desired. To achieve this a certain thickness of the composite is advantageous.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren aufzuzeigen, mit dem es möglich ist, eine ausreichende Dicke zu erzeugen ohne dabei einen höheren Materialverbrauch hinnehmen zu müssen.The invention has for its object to show a method with which it it is possible to produce a sufficient thickness without increasing it To have to accept material consumption.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Kunststoff-Folie mit einer Perforation versehen wird, die unmittelbar vor der Vereinigung mit der Fasermaterial-Bahn eingebracht wird.This object is achieved in that the plastic film with a perforation is provided, which immediately before the union with the Fiber material web is introduced.
Diese Perforation, insbesondere wenn sie im Vacuumverfahren hergestellt ist, läßt infolge der Perforationserhebungen beim Zusammenfügen der unterschiedlichen Bahnen den Gesamtverbund dicker werden als es der Summe der Einzeldicken entspricht.This perforation, especially if it is made in the vacuum process, leaves as a result of the perforation elevations when the different ones are put together Lanes of the entire composite become thicker than the sum of the individual thicknesses corresponds.
Dabei können durchaus die Perforationslöcher wieder - zumindest teilweise - verschlossen werden.The perforation holes can again - at least partially - be closed.
Besonders vorteilhaft ist es dabei, wenn gemäß einer weiteren Ausgestaltung der Erfindung die bei der Perforation entstehenden Erhebungen der Fasermaterial-Bahn zugekehrt werden.It is particularly advantageous if, according to a further embodiment, the Invention the elevations of the fibrous material web resulting from the perforation be turned towards.
Es ist im Rahmen der Erfindung jedoch auch möglich, die Ausstülpungen der Perforation auf der freien Seite der Folie vorzusehen.However, it is also possible within the scope of the invention to protrude the Provide perforation on the free side of the film.
Als sehr vorteilhaft hat es sich auch erwiesen, wenn gemäß einer weiteren Ausgestaltung der Erfindung für die Verbindung der Kunststoff-Folie mit der Fasermaterial-Bahn die Klebkraft der beim Vereinigen noch warmen Folie eingesetzt wird.It has also proven to be very advantageous if according to another Embodiment of the invention for the connection of the plastic film with the Fiber material web used the adhesive force of the film, which was still warm when combined becomes.
Darüber hinaus ist es aber auch möglich, daß zum Verbinden der Kunststoff-Folie mit der Fasermaterial-Bahn wenigstens zusätzlich ein Kleber eingesetzt wird.In addition, it is also possible to connect the plastic film with an adhesive is at least additionally used for the fiber material web.
Eine weitere vorteilhafte Ausgestaltung der Erfindung liegt darin, daß gleichzeitig mit der ersten Verbundfolie eine zweite Verbundfolie hergestellt wird, worauf beide Verbundfolien mit ihrer Folienseite zueinander miteinander verbunden werden.Another advantageous embodiment of the invention is that simultaneously with a second composite film is produced on the first composite film, whereupon both Composite films are connected to each other with their film side.
Auch hierbei ist es möglich, daß die Verbindung der beiden Kunststoff-Folien thermisch erfolgt.Here, too, it is possible that the connection of the two plastic films thermally.
Falls die Klebfähigkeit der Kunststoff-Folien nicht mehr ausreicht, kann jedoch auch zusätzlich oder vollständig zum Verbinden der beiden Kunststoff-Folien ein Kaschierkleber eingesetzt werden. If the adhesiveness of the plastic film is no longer sufficient, it can also additionally or completely to connect the two plastic films Laminating adhesive can be used.
Eine weitere Ausgestaltung der Erfindung ist dadurch gekennzeichnet, daß die Kunststoff-Folie auf beiden Seiten mit einer Fasermaterial-Bahn verbunden wird.Another embodiment of the invention is characterized in that the Plastic film is connected to a fiber material web on both sides.
Auch hierdurch wird ein voluminöser Aufbau des Folienverbundes erzielt.This also achieves a voluminous structure of the film composite.
Als sehr vorteilhaft hat es sich auch ergeben, wenn gemäß einer weiteren Ausgestaltung der Erfindung die Kunststoff-Folie aus einem im erkalteten Zustand hochelastischen Copolymer hergestellt wird.It has also turned out to be very advantageous if according to another Embodiment of the invention, the plastic film from a cooled state highly elastic copolymer is produced.
Besonders günstig ist es dabei, wenn gemäß einer weiteren Ausgestaltung der Erfindung als Material für die Kunststoff-Folie Polyethylen bzw. ein PE-Copolymer eingesetzt wird.It is particularly advantageous if, according to a further embodiment, the Invention as a material for the plastic film polyethylene or a PE copolymer is used.
In der Zeichnung ist die Erfindung anhand eines Ausführungsbeispiels veranschaulicht.The invention is illustrated in the drawing using an exemplary embodiment.
Dabei zeigt die Figur eine schematische Anordnung einer Einrichtung zum Herstellen einer Verbundfolie die aus vier Lagen aufgebaut ist.The figure shows a schematic arrangement of a device for manufacturing a composite film made up of four layers.
In je einem Extruder 1 und 2 wird jeweils eine Flachfolie 3 und 4 hergestellt. Beide Flachfolien gelangen im noch heißen Zustand zu je einem rotierenden Perforationszylinder 5 bzw. 6, der mit Unterdruck beaufschlagt ist. Dabei wird die Folie 3 bzw. 4 mit einer gegen den Zylinder gerichteten Perforation versehen.A flat film 3 and 4 is produced in each case in an extruder 1 and 2 . In the still hot state, both flat films each reach a rotating perforation cylinder 5 or 6 , which is subjected to negative pressure. The film 3 or 4 is provided with a perforation directed against the cylinder.
Daufhin läuft die Folie 3, 4 zu einem Walzenpaar 7, 8 bzw. 9, 10, an welchem die Folie mit einer Non-Woven-Bahn 11 bzw. 12 vereinigt wird.Then the film 3 , 4 runs to a pair of rollers 7 , 8 or 9 , 10 , on which the film is combined with a non-woven web 11 or 12 .
Für diese Vereinigung, bei welcher die ausgestülpte Perforationsseite gegen die Non- Woven-Bahn zu liegen kommt, reicht normalerweise die Klebkraft der noch heißen Folie aus. Es kann jedoch auch zusätzlich oder ausschließlich ein Kleber, beispielsweise Hotmelt, zwischen beide Bahnen eingebracht werden. Die so vereinigten Bahnen 311 bzw. 412 gelangen nun zu einem Walzenpaar 13, 14 zwischen denen die Einzelbahnen zu einer Verbundbahn 34 vereinigt werden. Auch hierbei kann die restliche Klebkraft zum Vereinigen ausgenutzt werden. Es ist aber auch hier möglich, zusätzlich Hotmelt oder dergleich zum Verbinden vorzusehen.For this combination, in which the protruding perforation side comes to rest against the nonwoven web, the adhesive strength of the still hot film is normally sufficient. However, an adhesive, for example hot melt, can also be introduced between the two webs in addition or exclusively. The webs 311 and 412 thus combined now arrive at a pair of rollers 13 , 14 between which the individual webs are combined to form a composite web 34 . Here, too, the remaining adhesive strength can be used for joining. However, it is also possible here to provide additional hotmelt or the like for connecting.
Insbesondere bei der vierlagigen Verbundbahn 34 kann es vorteilhaft sein, wenn die Perforations-Ausstülpungen der beiden Folien einander zugekehrt angeordnet sind; wobei auch hierbei die Perforationsöffnungen beim Vereinigen der Bahnen zumindest teilweise wieder verschlossen werden können.In the case of the four-layer composite sheet 34 in particular, it can be advantageous if the perforation protrusions of the two foils are arranged facing one another; the perforation openings can also be at least partially closed again when the webs are combined.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1998108425 DE19808425A1 (en) | 1998-03-02 | 1998-03-02 | Composite film manufacturing process gives a film with sufficient thickness for use in hygienic products without having to use excessively thick material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1998108425 DE19808425A1 (en) | 1998-03-02 | 1998-03-02 | Composite film manufacturing process gives a film with sufficient thickness for use in hygienic products without having to use excessively thick material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19808425A1 true DE19808425A1 (en) | 1999-09-09 |
Family
ID=7859179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1998108425 Withdrawn DE19808425A1 (en) | 1998-03-02 | 1998-03-02 | Composite film manufacturing process gives a film with sufficient thickness for use in hygienic products without having to use excessively thick material |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19808425A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3015265A1 (en) * | 2014-10-29 | 2016-05-04 | Nonwoven Network LLC | High performance moldable composite |
| US9533630B2 (en) | 2014-10-29 | 2017-01-03 | Nonwoven Network LLC | High performance moldable composite |
| US9938659B2 (en) | 2015-06-27 | 2018-04-10 | Nonwoven Network LLC | Apparatus and method of making a nonwoven ceiling tile and wall panel |
| US10072366B2 (en) | 2014-10-29 | 2018-09-11 | Nonwoven Network LLC | Moldable automotive fibrous products with enhanced heat deformation |
-
1998
- 1998-03-02 DE DE1998108425 patent/DE19808425A1/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3015265A1 (en) * | 2014-10-29 | 2016-05-04 | Nonwoven Network LLC | High performance moldable composite |
| US9533630B2 (en) | 2014-10-29 | 2017-01-03 | Nonwoven Network LLC | High performance moldable composite |
| US10072366B2 (en) | 2014-10-29 | 2018-09-11 | Nonwoven Network LLC | Moldable automotive fibrous products with enhanced heat deformation |
| US9938659B2 (en) | 2015-06-27 | 2018-04-10 | Nonwoven Network LLC | Apparatus and method of making a nonwoven ceiling tile and wall panel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |