DE102006057870A1 - Multilevel application of liquid or pasty medium on a moving paper-, cardboard- or other fibrous material web, comprises applying a film of a first application medium by a nozzle applicator and a further film of a second application medium - Google Patents

Abstract

The method for the multilevel application of liquid or pasty medium on a moving paper-, cardboard- or other fibrous material web (1), comprises applying a film (7a) of a first application medium by a nozzle applicator (4a, 4b) and a further film (7b) of a second application medium by 1:1 applicator mechanism (6a, 6b), applying the films of the application medium on a transmission element (2a, 2b), subjecting the films one upon the other and then transferring together in a nip on a side of the fibrous material web. The nip exists between the fibrous material web and the transmission element. The method for the multilevel application of liquid or pasty medium on a moving paper-, cardboard- or other fibrous material web (1), comprises applying a film (7a) of a first application medium by a nozzle applicator (4a, 4b) and a further film (7b) of a second application medium by an applicator mechanism (6a, 6b), applying the films of the application medium on a transmission element (2a, 2b), subjecting the films one upon the other and then transferring together in a nip on a side of the fibrous material web. The nip exists between the fibrous material web and the transmission element. The side of the fibrous material web is provided with several coating layers, which are applied only on one side of the fibrous material web or simultaneously on both sides of the fibrous material web. The applied film of the applicator mechanism falls on the applied film of the nozzle applicator. The applied film of the applicator mechanism in the nip directly reaches at the surface of the fibrous material web and forms a precoating and/or undercoating. The applied film lies at next to the nip. The applied film of the nozzle applicator fits itself as covering layer and/or top coat on the precoating and the undercoating and is regulated and/or homogenized with wiper elements. A curtain applicator mechanism for discharging curtains or a spray nozzle applicator mechanism for discharging spraying jets is used as the applicator mechanism and a short-dwell-time applicator nozzle for discharging first application medium in the surplus is used as the nozzle applicator. Several films and several curtains are applied by several applicator mechanisms. The solid content of the first medium is 5-40% and the solid content of the second medium is 50-70%. Both low coat weight of = 5 g/m2> per side and very high coat weight of >= 15 g/m2> are applied. An applicator roll or an endless transfer band is used as the transmission element. The application mediums are applied on the transmission element for the formation of the multiple layers in wet-in-wet manner. Independent claims are included for: (1) a device for multilevel application of liquid or pasty medium on a moving paper-, cardboard- or other fibrous material web; and (2) a paper.

Description

The The invention relates to a method and a device for multilayer Application of at least one liquid to pasty application medium on a running paper, cardboard or other fibrous web.

Around a high degree of coverage of the fibrous web and a good quality of the application layer to be able to reach often several consecutive layers of a job medium applied to one or both sides of the fibrous web. there are usually several, along the path of the fibrous web arranged one behind the other Commissioned works with or without intermediate drying are used. This procedure is expensive and expensive.

When Coating or application process are so-called film coating process applied.

• – simultanen Auftrag,
• – unterschiedliche Auftragsmedien, wie Streichfarben, Stärke und Spezialmedien,
• – unterschiedliche Auftragsmengen mit Variation des Strichgewichtes,
• – beliebige Maschinengeschwindigkeiten zwischen 100 und 2000 m/min

anzuwenden.These methods have many advantages, such as the possibility

• - simultaneous order,
• - different application media, such as coating colors, starch and special media,
• Different order quantities with variation of the line weight,
• - any machine speeds between 100 and 2000 m / min

apply.

In addition, will with the film coating process, the fibrous web only relatively little loaded, resulting in little breaks and a very good coverage become.

• – Strichgewichtslimitierung (hohe Strichgewichte von >10g/m²/Seite bei Maschinengeschwindigkeiten von >100 m/min;
• – Misting bei hohen Auftragsmengen und/oder hohen Geschwindigkeiten;
• – Farbspucken am Rakelelement bei rheologisch schwierigen Medien (Farben mit hohem Kaolin-, Talkum-Anteil);
• – Verschleiß des Rakelelementes bei abrasiven Medien;
• – Instabile, nicht definierte Bahnabzugsbedingungen (sog. web stealing);
• – rauer Strichoberfläche

auftreten.However, there are also some disadvantages in the form of

• Line weight limitation (high line weights of> 10 g / m ² / page at machine speeds of> 100 m / min;
• Misting at high order quantities and / or high speeds;
• - Color spitting on the doctor element in rheologically difficult media (colors with high kaolin, talcum content);
• - Wear of the doctor element in abrasive media;
• - Unstable, undefined train departure conditions (so-called web stealing);
• - rough line surface

occur.

When Another coating process comes the so-called 1: 1 application process for use. This is because it does not apply in excess, but that color or order quantity is applied, the should also remain on the fibrous web. The order medium is without device parts touching the surface to be coated, ie contactless, applied to the surface to be coated.

When One-to-one commissioned works are eligible for curtain-commissioned or spray-jet commissioned works.

At the Curtain applicator becomes from a slot nozzle the order medium as a Curtain or veil to the underlying running to be coated area issued. The curtain is essentially subject to falling of gravity. He falls also essentially free and unsupported and is therefore very sensitive to external influences, in particular Air currents. Therefore, the flow rate of the slot nozzle is limited in the lower area.

At the Sprühdüsenauftrag form a large number of spray nozzles in total a kind of curtain or the order takes place with a so-called Free jet applicator, where the application medium is applied under pressure. The order quantity this can also be low.

• – keine Verschleißteile des Auftragswerkes;
• – große Arbeitsfenster möglich, d.h. hohe als auch niedrige Auftragsmengen und hohe Maschinengeschwindigkeiten;
• – geringe Abrisshäufigkeit der Faserstoffbahn, insbesondere Papier- oder Kartonbahn.

Advantages of the 1: 1 order or the corresponding commissioned works are, for example:

• - no wearing parts of the commissioned work;
• - Large working windows possible, ie high and low order quantities and high machine speeds;
• - Low frequency of breakage of the fibrous web, in particular paper or board web.

• – der Vorhang auf eine rohe Bahn auftrifft, wobei Rohpapiere mit hoher Rauhigkeit zu Strichdefekten, also unbedeckten Stellen, Lufteinschlüssen, Aufreißen des Vorhanges aufgrund mangelnder Streckbarkeit führen;
• – eine Entlüftung der Streichfarbe bzw. der Auftragsmedien auf Werte von <1% Luftgehalt notwendig ist;
• – hohe Anforderungen an die rheologischen Eigenschaften, z.B. die Viskoelastizität und Streckbarkeit gestellt werden;
• – lediglich eine Kapillarpenetration des Auftragsmediums erfolgt, also keine Druckpenetration und damit keine mechanische Steuerung der Penetration des Auftragsmediums möglich ist.

A disadvantage especially with the curtain coating is that

• - The curtain hits a raw sheet, with raw papers with high roughness lead to line defects, ie uncovered areas, air pockets, tearing of the curtain due to lack of stretchability;
• - A bleeding of the coating color or the application media to values of <1% air content is necessary;
• - high demands are placed on the rheological properties, eg the viscoelasticity and stretchability;
• - Only a capillary penetration of the application medium takes place, so no pressure penetration and thus no mechanical control of the penetration of the application medium is possible.

Proposals for a multilayer order are known from the following publications:
In the JP-A2 4022 676 is a two-shift order of fenbart. The application of the first layer is carried out with a so-called rod coater (with the rod we scraped in excess applied medium) and the second layer is applied with a curtain applicator. Both layers are directly on the web.

From the WO-A1-2006 / 069851 a method is known in which individual application media or liquid streams are discharged separately from a plurality of slot nozzles directly to the fibrous web. During delivery towards the fibrous web, they are combined into a multiple curtain with a higher overall flow rate, forming a multiple layer on the fibrous web.

This Procedure indicates due to the first delivered, thin, delicate single curtains Disadvantages as described above. Also, with this method no penetration of the application medium in the fibrous web possible.

The sake of completeness is on the WO 2004/001133-A2 be pointed out. In 10 This WO is a two-sided indirect order with applicator rollers shown and described. By means of a curtain applicator the application medium is applied to an applicator roll. In the embodiment described, there are two applicator rollers pressed against each other, the fibrous web passing through the roller nip between the press rollers pressed against one another. This allows simultaneous coating. However, only achieving a single layer and no multiple layer is possible.

Of the The invention is therefore based on the object, a suitable method and to provide a device in which said disadvantages are not occur.

The The object of the invention is achieved by a method according to the characterizing Characteristics of claim 1 solved.

According to the invention, it is provided that at least one film or a layer of a job medium from a known nozzle applicator and at least one further film or a further layer of an order medium result from a known 1: 1 commissioned work and on a transmission element be delivered. Both films or both layers are still on the transfer element on top of each other placed and then together in a nip between the fibrous web and the transfer element exists, transferred to at least one side of the fibrous web. This forms on the respective side of the fibrous web several application layers, i. a multiple layer.

advantage Here is that on a short web run and without complicated web guide the possibility consists of applying two to n-dashes on one side of the fibrous web. Intermediate drying is not necessary.

The Can apply on only one side of the fibrous web or simultaneously on both sides at the same time. These are the device parts equally formed on both sides of the web. Depending on how the Order is to be made on one side of a device part or the commissioned work in operational or standby position pivoted or pushed.

you is therefore very variable and can the process and also the device for any many applications, So use even with changing requirements.

According to the invention, it is provided that the application medium delivered by the 1: 1 applicator is based on the from the nozzle applicator Applied application medium or on the on the transmission element already formed film or layer falls. Then arrives in the nip of the 1: 1 commissioned film, (in case of several submitted curtains or film, the one closest to the nip) the surface the fibrous web. There he forms a primer or an undercoat, whereas that of the nozzle applicator dispensed application medium as a topcoat on the precoat or the lower layer hangs up.

By This method is a controlled film cleavage in the film the nozzle applicator, the top coat. This controlled film cleavage can be done by several Parameters are influenced. These may include properties of the application medium, nip length, niplast, roll covers etc. be.

Regarding the quality of the multiple stroke, it is advantageous if the top coat, the as I said, that of the nozzle order dispensed film is metered with a doctor element and / or evened out. A residual film from the film of the top coat, which is about 0-20%, runs to Application unit back on the squeegee element and is there with fresh Medium mixed.

In Certain cases it may be appropriate if several films submitted by one or more one-to-one commissioned works become. This gives you the opportunity any number of layers, ie n-layers on at least to get a side of the fibrous web.

Of the Inventor has recognized that by a suitable choice of the order media the film transfer in the nip can be influenced. That's why in the frame The invention also proposed that the output from the nozzle applicator Application medium a lower solids content than that of the 1: 1 commissioned work has issued. That of the nozzle applicator dispensed application medium has a solids content of only about 5-40% and the order medium issued by the 1: 1 commissioning unit high solids content of about 50-70% and a viscosity between 300 and 1800mPa · s.

Thereby is guaranteed that a film cleavage, as already stated above, in the outer layer layer takes place. In general, however, any combination is conceivable.

It is advantageous that a large working window is achieved with the invention. This means that low line weights of = <5g / m ² / side as well as very high line weights of => 15g / m ² can be applied.

Begrudge is that as a 1: 1 commissioned work preferably a curtain-commissioned work, but also a known spray nozzle applicator and preferred as a nozzle commissioned work an SDTA nozzle (Short Dwell Time Applicator, i. a commissioned work with a short exposure time of the order medium) or another commissioned work can, such as a Speedflow nozzle.

It is understood that these commissioned works in their mode of operation on the whole web width are enough to ensure complete coverage.

Further is nachzutragen that as a transmission element against the web side of the fibrous web to be coated per web page an employed application roller or an endless transfer belt used is. Conceivable in this context is also a combination such, that on one side of the web an applicator roll and on the other Railway side, the transfer belt is present.

The inventive method is also characterized by the fact that the said Commissioned order media on the transfer element wet in wet, ie applied without intermediate drying. All in all This results in less dry energy and less effort than if after every single order step (to achieve the multi-layeredness) each time an intermediate drying would take place.

Begrudge That is also a powder coating instead of the coating from liquid to pasty Application medium with the 1: 1 order, in particular curtain coating is conceivable.

The The object of the invention is also with a device according to claim 11 solved. Accordingly, it is provided that both a known per se nozzle applicator and at least a per se known 1: 1 commissioned work a transmission element for training are assigned by several layers of at least one application medium and the transmission element forms a nip with one side of the fibrous web, in which the multiple layers delivered to the relevant side of the fibrous web become, whereby several superimposed Application layers arise.

Further appropriate design options The device result from further subclaims.

The The invention also relates to a paper which, according to the previously explained Process or prepared with the device described above is.

This multilayer paper has excellent printing properties on.

• – Bessere Oberflächeneigenschaften durch die gezielte Filmsplittung im Nip, die Oberfläche wird glatter, da das niedrigviskose Medium an der Oberseite besser verfliessen kann;
• – Vermeidung von „web stealing" (schlechtes Bahnabzugsverhalten) durch gezielten und kontrollierten Filmsplittprozess;
• – Gezielte Beeinflussung von Ober- und Unterseite (Zweiseitigkeit) des gestrichenen Papiers (Rauhigkeit, Glanz, Abdeckung...)ist möglich;
• – Kostenersparnis durch Verwendung unterschiedlicher Streichrohmaterialien im Vor- und Deckstrich;
• – Geringere Investitionskosten aufgrund viel kürzerer Trocknungsstrecken (Einsparen von mindestens zwei Trockenstrecken), dadurch geringere laufende Energiekosten als bisher;
• – Schneller Sortenwechsel von einfach- auf mehrfach gestrichene Sorten und umgekehrt möglich. Es sind mit derselben Vorrichtung also auch weiterhin einfach gestrichene Sorten möglich, wie z. B.
• a) simultane-Fahrweise ohne 1:1-Auftrag (Vorhang-Auftrag) d.h. z.B. nur des Düsenauftrages;
• b) simultaner 1:1 (Vorhang)-Auftrag, wobei das Filmstreichaggregat auch mit Wasser betrieben werden kann. Es kann ein dünner Wasserfilm aufgetragen werden, um den Filmtransfer beeinflussen und den auftretenden Restfilm beseitigen zu können;
• c) Möglichkeit, dass einseitige Qualitäten erreichbar sind, beispielsweise: Behandlung der Oberseite mit Pigmentstrich mit dem 1:1-Auftrag (Vorhang bzw. Curtain) und Unterseite mit Stärke oder Wasser gegen Curl oder andere Funktionsstriche;
• – Eine Vielzahl von bereits installierten Filmstreichaggregaten könnten mit den 1:1-, insbesondere Vorhang-Auftragswerken (Curtain-Aggregaten), nachgerüstet werden;
• – Im Vergleich zum normalen 1:1-Auftrag sind bei der Erfindung aufgrund des Mehrschicht-Auftrages (auch als Multi Layer bezeichenbar) die Anforderung an die Streichfarbe, wie die an die Dehnbarkeit und Entlüftung geringer, da:
• • das Auftreffen des Vorhangs bei der Erfindung auf eine glatte Oberfläche und nicht auf eine raue Papieroberfläche erfolgt;
• • Luftblasen im Vorhang, die bei der normalen Vorhang-Auftrags Strichfehler erzeugen können bei der Erfindung auf der Oberfläche des Übertragungselementes verfliessen und im zusätzlichen Nip zwischen den Übertragungselementen (Walzennip) vergleichmäßigt werden.

The invention achieves the following overall advantages:

• - Better surface properties through the targeted film splitting in the nip, the surface is smoother, since the low-viscosity medium on the top can flow better;
• - Avoidance of "web stealing" through targeted and controlled film splitting process;
• - Targeted influencing of top and bottom (two-sidedness) of the coated paper (roughness, gloss, coverage ...) is possible;
• - cost savings through the use of different coating raw materials in the front and top coat;
• - Lower investment costs due to much shorter drying distances (saving at least two drying sections), thus lower running energy costs than before;
• - Quick variety change from single to multiple coated varieties and vice versa possible. It is with the same device so also easy-coated varieties possible, such. B.
• a) simultaneous operation without a 1: 1 order (curtain order) ie only for the nozzle order;
• b) simultaneous 1: 1 (curtain) order, wherein the film coater can also be operated with water. A thin film of water can be applied in order to influence the film transfer and to be able to eliminate the residual film that occurs;
• c) possibility of unilateral qualities being achievable, for example: treatment of the top side with pigment coating with the 1: 1 application (curtain) and underside with starch or water against curl or other functional streaks;
• - A variety of already installed film coating units could be retrofitted with the 1: 1, especially curtain applicators (Curtain aggregates);
• - Compared to the normal 1: 1-order are in the invention due to the multi-layer order (also referred to as multi-layer markable) the requirement for the coating color, as to the ductility and ventilation lower, since:
• The impact of the curtain in the invention is on a smooth surface and not on a rough paper surface;
• • Bubbles in the curtain, which generate line errors in the normal curtain application can flow in the invention on the surface of the transmission element and be made uniform in the additional nip between the transmission elements (roller nip).

following the invention will be explained in more detail with reference to embodiments.

It demonstrate:

1 to 3 : Variants of the arrangement of commissioned works in schematic side views for a multi-layer job on a moving fibrous web

4 : a schematic representation, as with the in 1 to 3 variants shown a transfer of the application medium in the roll nip takes place

In the figures are for the same components and the same reference numerals.

1 shows a first variant of a device for multi-layer application to a moving fibrous web 1 , A two-sided, so-called indirect application is carried out with transmission elements 2a and 2 B for transferring job media in the example both on the top 1a and the bottom 1b the fibrous web 1 , As transfer elements serve two rotating in the direction R applicator rollers 2a1 and 2b1 chosen, which are arranged side by side and pressed against each other in the operating position shown.

Depending on whether a one-sided or two-sided application is desired, the device parts are activated only on one side or on both sides of the fibrous web. In the following 1 to 3 the two-sided order is shown.

Between the two transmission elements 2a and 2 B ie the applicator rolls 2a1 and 2b1 the fibrous web is running 1 in the example in the direction of L from top to bottom. This embodiment is sold by the Applicant Company under the name "Speedsizer".

The train 1 is via guide and deflection rollers 3 into the Nip N and out of this again. So on both sides 1a and 1b the fibrous web 1 a coating can take place, are the one transmission element 2a a first commissioned work, namely a nozzle applicator 4a and against the other transmission element 2 B also a nozzle applicator 4b assigned. Both commissioned works 4a and 4b are so-called Short Dwell Time commissioned works. This means that the application medium M1 is in excess on the surface of the respective transmission element 2a and 2 B applied and forms there a first film 5a or opposite to film 5b ,

Above the transmission element 2a and 2 B and spaced from him in each case is a second commissioned work, namely a so-called 1: 1 commissioned work 6a and against 6b ie a curtain applicator for dispensing a second application medium M2 or a second film 7a and 7b arranged. The application medium M1 and M2 can be the same type. However, it is desirable and, above all, possible to use media which differ from one another, which differ both in the quantity applied, the composition, and the rheological behavior-for example flow behavior. One recognizes in 1 that the films 5a and 7a on the one transmission element 2a and the movies 5b and 7b on the opposite transmission element 2 B superimposed and then together in each nip N, between the fibrous web side 1a respectively. 1b and the respective and the transmission element 2a and 2 B exists to be transferred to this railway side. This will make the respective web page 1a and 1b the fibrous web 1 with a multiple layer 8th consisting of individual layers resulting from the films 5a . 7a and 5b . 7b , Are still more commissioned works or even more dispensing nozzles on a commissioned work, so there are more film and therefore more layers, which should be denoted by n.

The one-to-one commissioned work 6a and 6b dispensed application medium M2 falls in the form of a curtain 6.1 and 6.2 on the nozzle unit 4a and 4b Applied application medium M1 or on the on the transmission element 2a respectively. 2 B already formed first layer or film 5a respectively. 5b , Subsequently, in Nip N, the curtain delivered by the 1: 1 applicator unit arrives 6a1 and 6b1 (For several submitted curtains or films, the one which is closest to the nip) directly to the surface or top 1a and bottom 1b the fibrous web 1 , There he forms a pre-coat or an undercoat 10a respectively. 10b whereas the application medium delivered by the nozzle applicator works as a cover layer 11a respectively. 11b on the precoat or the lower layer 10a . 10b (depending on whether one-sided or two-sided order takes place) hangs up.

It can be seen that the 1: 1 commissioned work, ie the curtain commissioned work 6a and 6b one air boundary layer scraper each 9a and 9b upstream. This entrained with the transfer elements or applicator air boundary layers of curtain applicator 6a and 6b kept away, whereby the curtain delivered by these commissioned works 6a1 and 6b1 stable down on the transmission elements 2a and 2 B can fall.

From the 1 can also be seen that the application unit of the nozzle applicator 4a and 4b one doctor element each 12a and 12b is downstream. In the example, a rotary doctor bar is selected as the doctor element, but could also be a doctor blade or an air brush. The squeegee element 9a . 9b is used for leveling or metering (setting the desired coating weight) of the application medium applied in excess M1. One on the transmission element 2a . 2 B Remaining residual film 13 from the film of the top coat 11a or 11b (depending on whether one-sided or double-sided application takes place), which are about 0-20%, runs to the application unit on the doctor element 12a and 12b back and is mixed there with fresh medium. The necessary collecting and returning means are, as well known, not shown in the figures for reasons of clarity.

In the 1 The first variant shown shows a 4-fold line, ie two layers per web page 1a and 1b ,

In 2 a second variant of the device according to the invention is shown. This variant can be a 6-fold line, so three layers on the fibrous web 1 be generated. The device of this variant essentially corresponds to that of 1 That's why only the differences over the 1 be explained and should be provided with reference numerals.

Unlike in 1 shown here are the curtain commissioned work 6a and 6b not only curtain 6a1 but a second curtain 6a2 (according to the same on the other side of the track 1b second curtain 6b2 ) and therefore achieved correspondingly more layers on the fibrous web. If further curtains were dispensed, more, in total then a number n of layers on the web could 1 be achieved. For this purpose, a commissioned work with a corresponding number of delivery slots or even several commissioned works, each with a discharge slot can be used.

The number can, as I said, increase to the achievement of n-layers. In this case, the application medium of the applicator closest to the nip always forms the inner or lower layer 10a or 10b ,

In 3 is basically the same device as in 1 , shown. In contrast, instead of the applicator rolls 2a1 and 2b1 here in each case circulating endless transfer belts 2a2 and 2b2 available. You can see that here again a curtain 6a1 and 6b1 of the 1: 1 commissioned work or curtain commissioned work 6a respectively. 6b delivered as a primer. It is understood that also several curtains and therefore layers or lines, as in the in 2 shown variant, could be applied.

Mention should still be made that the device components shown in the figures each machine width, ie to the width of the fibrous web 1 adapted, executed. In addition, any combinations of the in the 1 to 3 variants shown possible per web page.

In 4 is finally shown that in Nip N with the in the 1 to 3 Variants shown a controlled film cleavage FS in the outer coating layer, ie the top coat or the cover layer 11a takes place.

In Nip N, as can clearly be seen, the one from the 1: 1, ie curtain commissioned work 6a resulting movie 7a with the transmission element 2a to the railway side 1a transfer. On the transmission element 2a remains a residual film 13 of up to 20% of the amount of the film 5a while the main body as a top coat 11 on the movie 7a sticks. The rest movie 13 runs to the order aggregate 4a on the squeegee element 12a back and is mixed there with fresh medium.

At point FS one achieves controlled film-splitting properties, avoiding misting unwanted nebulization and spraying and the already mentioned sheet stealing, ie unfavorable take-off conditions. It can also be seen that a smooth surface of the top coat due to this controlled film cleavage and by an equalization effect achieved in the nip 11 or the multi-layer which can be formed from n layers 8th arises.

It should be mentioned that in the 4 only one nip, for example, between the transmission element 2a and the train side 1a existing, is shown, which here rotated by 90 ° and compared to the in the 1 to 3 shown enlarged area and with canceled applicator roll 2a1 is shown.

1

Fibrous web

2a

transmission element

2 B

transmission element

2a1

applicator roll

2b1

applicator roll

2a2

transfer tape

2b2

transfer tape

3

conductivity and guide roller

4a

Nozzle applicator

4b

Nozzle applicator

5a

Movie

5b

Movie

6a

1: 1 applicator

6b

1: 1 applicator

6a1

curtain

6b1

curtain

6a2

curtain

6b2

curtain

7a

Movie

7b

Movie

8th

Multilayer

9a

Air boundary layer scraper

9b

Air boundary layer scraper

10a; 10b

primer or lower layer

11a; 11b

topcoat or cover layer

12a

doctor member

12b

doctor element

13

residual film

L

direction

N

nip

M1

first application medium

M2

second application medium

R

direction of rotation

FS

film division

n

layer

Claims (18)

Process for the multilayer application of at least one liquid to pasty application medium onto a moving paper, board or other fibrous web, characterized in that at least one film ( 5a ; 5b ) of a first application medium (M1) from a known nozzle applicator ( 4a . 4b ) and at least one other movie ( 7a ; 7b ) of a second application medium (M2) from a known 1: 1 commissioned work ( 6a . 6b ) and onto a transmission element ( 2a . 2 B ), the films ( 5a . 5b ; 7a ; 7b ) and then together in a nip (N), which between the fibrous web ( 1 ) and the transmission element ( 2a . 2 B ), on at least one side of the fibrous web ( 1a . 1b ), whereby the respective page ( 1a ; 1b ) of the fibrous web ( 1 ) with several application layers ( 8th , n) is provided. Method according to claim 1, characterized in that the application layers ( 8th ; n) only on one side ( 1a . 1b ) of the fibrous web ( 1 ) or simultaneously on both sides ( 1a . 1b ) of the fibrous web ( 1 ) are applied. A method according to claim 1 or 2, characterized in that the 1: 1 commissioned work ( 6a . 6b ) at least one film ( 7a ; 7b ) on the nozzle applicator ( 4a . 4b ) ( 5a ; 5b ), where in the nip (N) of the 1: 1 commissioned work ( 6a . 6b ) delivered film ( 7a . 7b ), which is closest to the nip (N), directly to the surface of the fibrous web ( 1 ) and a precoat or an undercoat ( 10a ; 10b ), whereas that of the nozzle applicator ( 4a . 4b ) delivered film ( 5a . 5b ) as a topcoat or topcoat ( 11a ; 11b ) on the precoat or the lower layer ( 10a . 10b ) hangs up. Method according to one of claims 1 to 3, characterized in that only the nozzle applicator ( 4a ; 4b ) delivered film ( 5a ; 5b ) with a squeegee element ( 12a ; 12b ) is metered and / or evened out. Method according to at least one of claims 1 to 4, characterized in that as a 1: 1 applicator ( 6a . 6b ) a curtain applicator for dispensing at least one curtain ( 6a1 ; 6a2 ; 6b1 ; 6b2 ) or spray nozzle applicator for the delivery of spray jets and as a nozzle commissioned work ( 4a ; 4b ) preferably an SDTA nozzle for dispensing application medium (M1) is used in excess. Method according to at least one of claims 1 to 5, characterized in that a plurality of films ( 10a . 10b ) or several curtains ( 6a1 ; 6a2 ; 6b1 ; 6b2 ) of one or more one-to-one commissioned works ( 6a ; 6b ). Method according to at least one of claims 1 to 6, characterized in that the from the nozzle applicator ( 4a ; 4b ) application medium (M1) a lower solids content than that of the 1: 1 commissioned work ( 6a . 6b ) has applied application medium (M2), wherein the one application medium (M1) has a solids content of only about 5-40% and the other application medium (M2) has a high solids content of about 50-70%. Method according to at least one of the claims che 1 to 7, characterized in that both low coating weights of = <5g / m ² / side and very high coating weights of => 15g / m ^{2 are} applied. Method according to at least one of claims 1 to 8, characterized in that as transmission element ( 2a ; 2 B ) an applicator roll ( 2a1 ; 2b1 ) or an endless transfer belt ( 2a2 ; 2b2 ) is used. Method according to at least one of claims 1 to 9, characterized in that the for the formation of the multilayer ( 8th ; n) deposited application media (M1, M2) on the transmission element ( 2a . 2 B ) wet in wet. Apparatus for the multi-layer application of at least one liquid to pasty application medium on a running paper, board or other fibrous web, characterized in that a known per se nozzle applicator ( 4a ; 4b ) and at least one known 1: 1 commissioned work ( 6a . 6b ) a transmission element ( 2a . 2 B ) for the training of several films ( 5a ; 5b ; 7a . 7b ) and the transmission element ( 2a ; 2 B ) with the fibrous web ( 1 ) forms a nip (N) in which the plurality of films ( 5a ; 5b ; 7a . 7b ) to the relevant page ( 1a ; 1b ) of the fibrous web ( 1 ) and there a multiple layer ( 8th ; n) arises. Apparatus according to claim 11, characterized in that for two-sided multilayer application two transmission elements ( 2a ; 2 B ) are provided, which pressed against each other, between them the fibrous web ( 1 ), whereby the multilayer application or the multilayer ( 8th ; n) on both sides of the web ( 1a ; 1b ) takes place simultaneously. Apparatus according to claim 11 or 12, characterized in that as a 1: 1 commissioned work ( 6a . 6b ) a curtain applicator or spray nozzle applicator and as nozzle applicator an SDTA nozzle or a Speedflow nozzle is provided. Device according to one of claims 11 to 13, characterized in that as the transmission element ( 2a ; 2 B ) an applicator roll ( 2a1 . 2b1 ) or a deflection rollers ( 3 ) running endless transfer belt ( 2a1 . 2b1 ) is provided. Device according to at least one of claims 11 to 14, characterized in that several successively arranged 1: 1 commissioned works ( 6a . 6b ) or a commissioned work with several discharge nozzles is provided. Device according to at least one of claims 11 to 15, characterized in that the 1: 1 applicator ( 6a . 6b ), in particular the curtain applicator, an air boundary layer scraper ( 9a . 9b ) is connected upstream. Device according to at least one of claims 11 to 16, characterized in that the application unit of the nozzle applicator ( 4a ; 4b ) a squeegee element ( 12 . 12b ) is connected downstream. Paper, characterized in that it is provided with a Method according to one the claims 1 to 10 and / or a device according to at least one of claims 11 to 17 is made.