FI118814B - Method and arrangement for treating a fibrous web prior to a calender - Google Patents

Description

118814

Method and arrangement for treating a fibrous web prior to a calendar

BACKGROUND OF THE INVENTION The present invention relates to a process for treating a fiber web, wherein the process is preferably moistened with water as a dewatering agent. , water mixture, liquid mist or liquid mist, and / or a mixture thereof. The present invention also relates to an arrangement for treating a fibrous web prior to calendering, comprising the wetting means for moistening the fibrous web before the calendar by means of a wetting liquid, preferably water, an aqueous mixture, a liquid mist or liquid mist, vapor and / or mixtures thereof.

Since calendering is basically a simple step of processing a fibrous web, wherein the fibrous web is compressed in a nip formed between the rolls being pressed against each other by means of heat, pressure and / or moisture to make the web thinner and smoother. Thus, the calendar may be a machine calender prior to machine winding or an on-line calender associated with a fiber web machine, such as a soft calender or a multi-nip calender, or an off-line calender associated with a fiber web machine, such as a multi nip super calender.

• e a • · • · e ♦

It is already known that the fibrous web is moistened before the calendar. The purpose of the moistening process is to place the fibrous web in a state that is optimal for calendering the fibrous web, which is aa | : *; as a result, the most uniform and thin fiber web can be produced. However, it is known that ··· a. * * *. There is a problem with the wetting of the fibrous web where the liquid droplets generated by the wetting process • a · cause uneven wetting of the fibrous web, which is reflected in the harmful imprints, and the environment; ·, Wetting, which will corrode metal parts.

• aa • aa · • a a · *! * In the solution disclosed in US 6260481, a wetting of the fiber web in the direction of MD · • a · * ...: 30 is applied in the transverse direction, i.e. CD direction, with dried steam, which is intended to condense the fiber web in its thickness or Z direction. to achieve this:. *. uniform wetting of the fibrous web. It is known that the phase change from water to steam requires ··· · t · 2 118814 significantly heat energy, and that the phase change from steam to water significantly releases heat energy. The solution proposed by the publication is therefore not only thermally costly but also difficult to control because the solution proposed here proposes that only the low temperature of the fibrous web acts as a vapor cooler to effect condensation 5 and that the wetting unit is mimicked downstream of the nip. The problem with the solution of the US publication is the short action time between the vapor and the fast moving fibrous web before the nip, as a result of which the temperature of the fibrous web must be accurately maintained in both MD and CD directions at the wetting unit to achieve desired condensation to the fibrous web. Otherwise, the 10 fibrous web enters the nip at the wrong humidity and / or temperature and does not result in a fibrous web having the desired smoothness and gloss

In the solution disclosed in EP 979897, the wetting of a fibrous web before the first calendar is based on wetting the fibrous web in a CD direction with a spray water spray having a droplet size of 15 <50 µm, preferably <20 µm and a duration of 0.6-1.2s preferably 0.8-1.0s . According to the EP, a particularly preferred wetting area is immediately before the nip. According to the teachings of the EP, with such droplet size and such spray duration, uniform wetting can be achieved and the occurrence of individual droplets can be reduced. Water mist can substantially reduce the thermal energy problem caused by phase changes, but the problem remains the management of • · 20 additional wetting fluids. Excess wetting fluid builds up on the surface of the web supporting roll when the fiber web is wetted by the wetting unit before the calendar. Fiber web! from the surface of the supporting roll, water drips onto the environment and onto the fibrous web, resulting in dripping: adversely affecting the fibrous web.

• · a a a • st * · »a · ***. In order to solve the dripping yellow, the prior art has suggested that the wetting should be limited * a a to the edge of the fibrous web and that the edges of the wetted fibrous web be cut before:. calender to provide a fiber web that is uniformly moistened in the CD direction. However, when wet, · ···, the edges of the cut fibrous web are partially wetted and therefore sensitive to cutting · · * tearing, and the edges are easily left uneven and / or torn, with the risk of breaking the fibrous web. A further problem is the introduction of a damp edge strip into the pulper, which causes a risk of clogging.

• · a · · a · · a ·· a • a a 3 118814

It is an object of the present invention to provide a novel inventive method for treating a fibrous web in a wetting section prior to a calender such that problems and weaknesses associated with wetting and problems and weaknesses resulting from wetting can be eliminated or at least minimized. It is another object of the present invention to provide a novel and inventive arrangement for treating a fibrous web in a wetting section prior to a calendar such that problems and weaknesses associated with wetting and problems and weaknesses resulting from wetting can be eliminated or at least minimized. A third specific object of the present invention is to prevent water 10 from accumulating on the surface of the web supporting roll and dripping onto the environment and onto the surface of the fibrous web after wetting. In one aspect, a further object of the present invention is to provide, prior to wetting the fibrous web, conditions for uniform wetting of the fibrous web to reduce web breaks and improve the runnability of the fibrous web. According to another aspect of the present invention, a further object of the present invention is to provide cutting means for cutting the edge strips of the fibrous web by means of a backing roll supporting the fibrous web before wetting the fibrous web.

The objects of the present invention may be achieved by the method of the invention, for example, by removing excess wetting fluid from the surface of a • m V, · 20 non-wetted fibrous web or · · 1 {1 (· outside the fibrous web) substantially substantially supporting the wetted web. , after wetting and / or communicating with a gas ·! ': / air bubbling or jet applied flat or parabola!: 1: towards the return roll, a fan-shaped gas / air flow.

»• s» • a • · · • 1 · «·· ·. 1 1 1. 25 The wetting fluid used for wetting may be water, water mixture, liquid mist, or liquid mist, vapor and / or mixtures thereof. The present invention also includes; ·. it should be noted that the term gas / air refers, for example, to a gas mixture consisting of two or more gases, or to an air or air mixture to which one or more gases are added.

30 "" · In order to prevent dripping after wetting, excess wetting fluid is removed by wetting the surface of the backing roll supporting the fibrous web by gas / air blast or gas jet ··· · · 4 118814 / air jet. This can be used as a gas air blast or gas / air jet The gas / air flow can be achieved, for example, by gas nozzles, which preferably direct the gas flow towards the cylindrical end slurry free of the fibrous web S of the counter roll, whereby the release wetting liquid is collected at the gas / air flow, for example.

It is advantageous for the invention that, to uniformly moisten the fibrous web, threats are cut off the fibrous web before moistening the fibrous web. In this way, the fibrous web can be wetted substantially uniformly at least over the entire CD1 direction of the fibrous web after cutting the edge strips 10.

Since, according to the invention, especially to enable uniform wetting, the edge strips are cut from the fibrous web prior to wetting the fibrous web, the wetting can now be extended substantially in the CD direction to at least the entire width of the fibrous web. This improves the runnability of the fibrous web, and the edges of the fibrous web are not deformed during calendering to the extent that traditional runner methods do. In addition, the risks of line breaks are reduced

The objects of the present invention may also be achieved by an arrangement for treating the fibrous web prior to the calendar, for example, by including at least the excess ee :: 1 20 wetting fluid removal means the excess wetting fluid is contactlessly removed • e ·! On the surface of the wetted fibrous web or the wetted fibrous web in the CD direction substantially uniformly; on the surface of a supporting counter roll outside the fibrous web after wetting and / or; 1: Connected with gasFor air blast or jet, which can be flat or parabola ·· · •; 1 · fan-shaped gas / air flow extending towards the backing roll when shaped.

«E1 e 25 • · • · e

The wetting fluid used for the wetting may be water, water mixture, liquid mist, i.e.; ·, Liquid mist vapor and / or mixture thereof. It is also to be noted in the context of the present invention that the term gas / air refers to, for example, a gas mixture consisting of two or more gases, or air or air mixture to which one or more gases have been added.

• · 30 '1 1 1: To prevent dripping after wetting, removing excess wetting fluid is j. ·. gas made by air blowing or spraying. In this case, the gas Air blowing or jet MS · · 5 118814 may be a flat or parabolic fan / gas reference extending towards the counter roll.

According to the invention, the gas / air flow towards the backing roll which supports the fibrous web during and / or after wetting can be provided by gas nozzles, whereupon the excess wetting liquid is collected at the gaseous / air flow in a tracked collecting medium.

10 To avoid adverse after-effects such as wavy or even edges on the fibrous web from the dryer section and the CD-like uneven humidity profile of the fibrous web, such as web breaks and runnability problems, the arrangement includes cutting means for However, it is particularly preferred according to the invention that the wetting of the fibrous web extends over at least the entire CD direction of the fibrous web.

According to the invention, the counter roll supporting the fibrous web for handling the fibrous web is a separate counter roll supporting the fibrous web prior to wetting, cooperating with the cutting means, • e 1 • at least an integrated counter roll common to the cutting means and wetting means; in cooperation with the cutting tools, or:: 1: Integrated counter roll for common cutting tools and wetting devices and ·· · drainage means for wetting.

a · 1 · 25 • · ···

According to the invention, the cutting means include, for example, a cutting blade which cuts; ·, To cut the edge band substantially before the wetting means. The blade is rotating

• M

, ···, a cutting blade having a diameter of 7 cm to 17 cm, more preferably 10 cm to 15, most preferably • · * 1 1 to about 12 cm, and a high speed rotating power device, for example an electric motor, * · «* ..." 30 To provide a cutting function * for cutting the peripheral strip, at least two are formed; With CD-movable cutting blade and a matching groove groove.

For the purpose of explaining other structural details of the invention, reference will be made to the following specific section of the specification which explains the patent drawings by reference to some preferred embodiments of the present invention wherein the fibrous web machine is a paper machine and the fibrous web is a paper web. In the patent drawings, FIG.1 schematically illustrates an arrangement 10 for treating a paper web in a papermaking machine according to an embodiment of the present invention, FIG.2 further illustrates an embodiment of the arrangement according to the invention according to FIG.1, comprising sequentially sequenced edge strip cutting means, paper web wetting means 15 in the embodiment of FIG. 15 in the embodiment of FIG. 15, FIG. 4 illustrates in the embodiment of FIG. 2 the paper in the CD direction of the paper web. FIG. 6 schematically illustrates another embodiment of the arrangement of the present invention in a paper web machine for treating a paper web prior to a calender, FIG. 7 is a perspective view of an additional moistening device; removal means in a third embodiment of the present invention, and · · ·, ·. FIG. 8 is an end view of an embodiment of FIG. 7.

• · · 25 • 9 • 9

The present invention will now be described in more detail with reference to a paper web machine, which is a paper machine. In this case, the paper web W is a paper web.

FIG. 1 of FIG. 1, the paper web W comes from the dryer section 1 and passes to the calendar 5 via the arrangement 2,3,4 of the invention 'fi.

• · • · · • · · ··· «♦ 7 118814

According to the invention, in the arrangement, first the cutting edges 2 are used to cut the edge webs 6 of the paper web W. Thereafter, the paper webs are moistened with substantially at least its entire CD width by wetting means 3 by liquid or water mist. Finally, and prior to the calendar S, the excess wetting liquid S is removed from the surface of the backing roll 41 supporting the paper web with the wetting fluid discharge wipes 4 during and / or after wetting.

For cutting the edge strips 6 before the wetting means 3, the cutting means 2 of the arrangement according to the invention includes a rotary cutting blade 23. The cutting blade cooperates with a paper roll backing roll 41; With 22. Further, to eliminate pelleting of the wetting liquid onto the paper web, the arrangement further comprises means for removing excess wetting liquid 4 by means of which the excess wetting liquid can be removed from the surface of the backing roll 41 supporting the paper web.

In particular, the counter roll supporting the paper web W used to cut the edge strips 6 may be a separate counter roll 22 for cooperating with the cutting blade 23 only, as shown in FIGS. 1 ... 3 15. Such a separate counter roll may also have a guiding function affecting the paper web. paper roll guide roll.

The backing roll supporting the paper web W to assist in cutting the edge strips 6 may also be an integrated backing roll 41 which is common to the paper web wetting means 3 and the excess wetting fluid removal means 4 in addition to the cutting means 2. Such integrated: 1 2 3 4 5 · 1: for example, FIG. As in the case of a separate counter roll 22, so can • 1 I '·'; the integrated back roll also has a steering function that affects the paper web passage. In this case • ·: The integrated counter roll may act as a guide roll for the paper web.

Referring to FIG. 2, which illustrates in more detail the arrangement according to the invention, FIG. 1 · · to handle paper web W before calendar 5.

The exemplary embodiment of FIG. 2, sequentially sequenced, comprises a paper web edge strip 4a a 5 Cutting means 2, a paper web wetting means 3 and a removal means 4 auxiliary aaa! 30 for removing the wetting fluid from the surface of the backing roll 41 supporting the paper web.

a a · e • • • · · • · · · · · · · · · · 8 118814

In the exemplary embodiment of FIG. 2, the cutting means of the edge band 6 includes a rotary cutting blade 23 which cooperates with a separate counter roll 22 affecting the passage of the paper web W. The cutting blade cuts the paper web in its direction of travel with an optional wide edge band to provide a paper web with a smooth and desired width. After cutting the edge strip S, the edge strip is guided to the edge strip receiving means 25, which is preferably in communication with the pulper. Since the pulper is known per se to a person skilled in the art, the pulper is not shown in the figures. The choice of the position of the edge band cutting according to the invention has the essential advantage that the edge band cutting is carried out according to the invention while the paper web is still dry, i.e. not wetted. In this case, the jams in the paper web receiving means leading to the pulper can be minimized.

Further, in the embodiment of FIG. 2, it is illustrated that the wetting of the paper web W takes place after cutting the edge strips 6, whereby the paper web to be wetted is straight and flat of the desired widths and edges. There is thus an advantage that the paper web moistening 15 can be extended without problems to the CD width of the entire paper web.

The embodiment of Figure 2 further illustrates the final treatment of the paper web W according to the invention, which is the removal of excess wetting liquid from the surface of the paper web backing roll 41 after wetting the paper web. According to the invention, • · · · · · · · · · · · · · · · · · (20) excess wetting fluid is removed during wetting by a backing roll 41 supporting the paper web W. The gas-air flow or gas / air blast, i.e. gas / air flow 44.

·· · • 1. · The gas-airflow is thus essentially a fan-shaped gas-blue flow directed toward • 1 • · the counterbore previously in the form of flaps.or parabolic.

FIGS. 1 and FIG.2 illustrate with a dashed line that the wetting of the paper web following the cutting of the edge strips 6 and before the removal of excess wetting liquid can be done on both sides of the paper web.

1 (Referring to FIG. 3, which illustrates the cutting means of the paper web in the CD direction of the edge strip 6 in the exemplary embodiment of FIG. 2. In the embodiment of FIG. 3, the cutting means 2 includes: 1 a cutting blade 23. , which may be provided for cutting the edge strips 6 before moistening, may be provided before::: moistening unit 3 or partially moistening unit or wholly moistening unit.

··· · · t 118814 9

Slit1 23 cooperates with a separate counter roll 22 supporting paper web W. To accomplish the cutting function by cooperating cutting blade 23 and counter roll 22, a circumferential groove 24 or, as in FIG. 3, a plurality of S circumferential grooves, however at least two perforated grooves, is formed in the counter roll roll area to provide a cutting width and wettable paper. The cutting blade 23 rotates inside the peripheral groove, whereby the cutting depth is greater than the thickness of the paper web. The width of the cutting edge to be cut can be determined by moving the cutting blade 23 and the peripheral grooves 10 axially spaced apart by moving the cutting blade and the optional peripheral groove.

The rotary cutting blade 23 of the cutting means 3 preferably has a diameter of 7 cm to 17 cm, more preferably 10 cm to 15 cm, most preferably about 12 cm, and the cutting blade is rotated by a high 1S speed rotating power device, for example an electric motor. In this way, the cutting blade can be rotated at high speed in the direction of travel of the paper web W or against the direction of travel of the paper web.

After cutting the edge strips 6 of the paper web W, the paper money is moistened with the wetting means ** ·: ·: 20 3.

·· 1 • · · · a · ·· ·

Reference is made to Figure F1G.4, which shows the paper web W in the CD direction of the paper web

• · •. ·; wetting means 3 in the exemplary embodiment of FlG.2 in Figure 3. The wetting of the paper web before the calender is • · • # 1: known per se. New and therefore explained below, the wetting means 25 now wet the paper web cut to the desired width in the preceding cut of the edge strips 6. Hereby, according to the invention, the paper web W is moistened substantially uniformly and at least over the entire CD direction of the paper web.

·· ♦ • ♦ • · «··. 1, the wetting of the paper web W can be slightly extended beyond the MD longitudinal sides of the paper web, as illustrated in the figure. This ensures that the paper web is wetted evenly and at its very extreme edges.

• · »· 1 • · 1« ·· »118814 ίο

After wetting the paper web W, excess unabsorbed wetting fluid is removed from the surface of the backing roll 41 supporting the paper web by means of excess wetting fluid removal means 4.

Referring to FIG. 5, which illustrates means for removing excess wetting water S in the CD direction of the paper web in the embodiments of FIG.

According to the invention, the additional wetting fluid is removed from the surface of the backing roll 41 supporting the paper web W during wetting and / or after wetting by means of a gas / air blast or gas / air jet, preferably flat or parabolic to the backing roll 10. fan - shaped gas / air flow.

For removing the water film or droplets of water on the surface of the counter roll 41, the gas * / air flow 44 is, in the embodiments of FIG. S, a parabolic gas / air flow at an oblique angle to the counter roll surface partially in the axial direction.

1S axial gas / air flow, and partially in the circumferential direction of the counter roll, i.e. radial gas / air flow. Each individual gas blast or gas jet, and together they form a gas / air flow toward the back roll 41, is provided by a plurality of gas nozzles 43 or, for example, only a gas nozzle dimensioned to cover the back roll end region free of paper. Each gas nozzle or gas nozzle is part of the gas distribution means 42 and is connected to a gas distribution duct through which the gas / air flows to the gas nozzle or gas nozzle.

· * *:. * The gas duct is not essential to the invention since it is not problematic for the person skilled in the art to design a functional gas distribution device comprising a gas nozzle or Φ e ·. · · Gas nozzle.

Thus, the gas / air flow 44 removes excess wetting fluid from the surface of the backing roll, and the loosening wetting fluid is collected, for example, in a gas collecting air follower collecting device 43. The excess humidifying fluid moving into the collecting device tends to drain **. *. downward effect, it is therefore advantageous that the collecting means, such as a collecting vessel or collection box, is ··· tracked in an inclined position or provided with a bottom adapted to an inclined position. The excess humidifier thus collected accumulates at the lowest point of the collecting means, which is in fluid communication with the humidifying fluid outlet means, such as a flow channel or jet jet 46, for further directing the humidifier to the desired collection point.

• «118814 π

Referring to FIG. 6, which schematically illustrates another embodiment of an arrangement of the present invention in a papermaking machine for treating a paper web prior to calender S, the paper web W edge strip cutting means 2 and - followed by the paper web wetting means in order to remove excess wetting water from the surface 10 of the paper roll backing roll 41 as individual paper web treating means are of the same type as the corresponding paper web treating means in the first embodiment of the invention. The second embodiment of the invention differs most significantly from the first embodiment of the invention in that the paper web handling means is imaged around a common counter roll 411, which may control the passage of the paper web and support the paper web. The second embodiment of the invention will therefore be described below only in relation to paper web cutting means and removal means for removing excess wetting fluid from the surface of a common back roll 41 supporting the paper web.

In another embodiment of the invention, the edge strips 6 of the paper web W are cut in cooperation with the common back roll 41. The cylindrical end regions of the counter roll have: *. · Formed circumferential grooves 24, each of which can operate with a matching cutting blade · «·: V 23 which is thus movable in the CD direction of the paper web W and aligned with each circumferential groove • ·; paikoiteltava.

Thus, by cutting the edge strips 6, the paper web W can be cut to a flat edge and just the desired width, so that the next treatment with the wetting means 3 can be made in the CD direction "... evenly over the entire width of the paper web. extends slightly beyond the MD longitudinal edges of the paper web.

·· # e · • ·

***** 30 After wetting, the paper web continues to pass on the counter roll. In this case, the paper web W

a ··· * may tighten against the backing roll, which may cause the longitudinal edges to project onto the surface of the backing roll 41 supporting the paper web, which may form * ···· • · 12 118814 water film or droplets of water on the backing roll surface. The rotational movement of the counter roll produces an increasing centrifugal force as the peripheral velocity increases, caused by the dripping and / or even flowing of the superphosphine wetting fluid onto the paper web, which would be detrimental to the paper web.

For removing the water film or droplets of water on the surface of the SV astatel 41, the gas / air flow 44 is, in the exemplary embodiment of FIG. 6, a parabolic gas / air flow that expands toward the back roll and thus at right angles to the back roll surface . Each individual gas / air blast or gas / air jet, i.e. the gas / air flow provided towards the back roll 41 is provided by either 10 more gas nozzles 43 or, for example, only one gas nozzle dimensioned to cover the back roll roll free from the paper web W.

Each gas nozzle or gas nozzle is part of a gas distribution means 42 which also comprises a gas distribution conduit through which the gas / air flows to the gas nozzle or gas nozzle.

The gas / air flow 44 removes excess wetting fluid from the surface of the counter roll 41, and the detachable wetting fluid is collected, for example, at a gas / air flow tracked collecting means 45, which may be a collecting case or collection vessel. The excess wetting fluid entering the collection means tends to drain downward due to the gravity of the ground, so it is preferable that the collection means is arranged in an inclined position or a bottom adapted to be inclined in the collection means. Thus, the excess humidifier collected • · *. · · · · · · · · · · · · · · · · · · J 20 20 may accumulate at the lowest point of the collecting means having a · · a • '.

Referring to FIGS. 7 and 8, respectively, a perspective view and an end view, respectively, of the excess wetting fluid removal means in a third embodiment of the arrangement a of the present invention are shown.

·· • a • aa a. · · ·. According to a third exemplary embodiment, a paper web W, wetted with a wetting means 3 uniformly throughout its width by means of a liquid / water mist after being cut off by a cutting means 2 from the free cylindrical surface of a backing roll supporting the web, * 1 extends beyond the longitudinal edge of the paper web, removing excess wetting fluid a; 1 · by means of gas nozzles 44, which are included in the means 4 for removing excess wetting fluid.

··· 1 a * a 13 118814

In order to remove the water film or droplets of water on the surface of the counter roll 41, in the third embodiment of the invention, the gas / air flow is flat and widening towards the counter roll at an oblique angle to the surface of the counter roll. radial gas / air flow. Each individual gas / air blast or gas / air jet and their combined shape gas / air flow towards the back roll 41 is provided by a plurality of gas nozzles 43 whose combined gas / air flow is dimensioned or adjustable to cover the back roll end region free of paper web W the desired edge strip 6 is cut before the paper web is moistened 10. Each gas nozzle or gas nozzle is part of the gas distribution means 42 and is connected to a gas distribution conduit through which the gas / air refers to the gas nozzle or gas nozzle. The gas duct is not essential to the invention since it is not problematic for one skilled in the art to design a functioning gas nozzle or gas nozzle gas inlet duct. In the exemplary embodiment of Figure 7, the gas distributor means 42 has a 1S gas manifold with a plurality of gas nozzles 43 each forming a fan-shaped gas / air flow 44 at an oblique angle and radially toward the counter roll 41.

The excess wetting fluid discharged by the gas / air streams 44 accumulates downstream of the gas / air streams and most preferably aligns with the gas / air streams • V: 20 in a stiffened wetting fluid collection means 45 including, for example, an inclined collector housing or collector a bottom and an accumulated wetting fluid discharge means 46, which is, for example, a flow channel in fluid communication with the collecting means or jj ': a flow tube 46 for further directing an additional collected wetting liquid to a desired collection point.

· * · A 25 • · ···

The invention has been described above only by means of some preferred embodiments thereof.

; Of course, the present invention is by no means limited to such individual persons

• M

(For the exemplary embodiments, only many variations or alternatives and other functionally equivalent solutions are possible within the scope defined by the appended claims 30.

• »m • · •« · «« * · * · «• ·

Claims (18)

118814 A method for treating a fibrous web, wherein the fibrous web (W) is moistened with S before calendering with a wetting liquid, preferably water, a water mixture, a liquid mist, or a mixture thereof, characterized in that the excess wetting liquid is removed from the or on the surface of a back roll (41) substantially supporting the wetted fibrous web outside the fibrous web, after wetting and / or communicating with a gas 10 / air blast or jet to provide a flat or parabola-shaped, fan-shaped gas - / air flow (44). Method according to claim 1, characterized in that the excess wetting liquid 15 is removed from the surface of the backing roll (41) supporting the fibrous web (W) by means of a gas / air flow (44). Method according to Claim 1 and / or 2, characterized in that the gas / air flow (44) is achieved by gas nozzles (43) which direct the gas flow towards the back roll 20 (41), preferably towards the cylindrical end region free of the back roll fiber web (W), and • m :: that the detachable wetting fluid is collected, for example, in a ·· · • collecting means (45) arranged at the gas / air flow. ·· · • · · • e • a A method according to any one of claims 1 to 3, characterized in that the edge strips (6) are cut from the fiber web (W) before the fiber web (·) is wetted · · · ·: Method according to one of Claims 1 to 4, characterized in that the fibrous web (W). 1 1 1. moisten substantially uniformly, after cutting the edge strips (6), at least • M •, 30 across the CD width of the fibrous web. • e e a e • ··· • e • e • · · · • 1 e e «· • · 118814 An arrangement for treating a fibrous web prior to calendering, comprising: wetting means (3) for wetting the fibrous web before the calender (5) by means of a wetting liquid, preferably water, aqueous mixture, liquid mist or liquid mist, vapor and / or mixture thereof. 5 wetting fluid removal means (4) for removing excess wetting liquid from the surface of the non-contact wetted fibrous web (W) or from the surface of the counter roll (41) substantially substantially uniformly supporting the wetted fibrous web in the CD direction, after and / or which may be a flat or parabolic fan / gas flow extending towards the counter roll 10. Arrangement according to Claim 6, characterized in that the removal of the additional wetting fluid is effected by means of a gas / air flow (44). Arrangement according to claim 7, characterized in that the gas / air flow (44) is provided by the gas nozzles (43) and that the gas flow is directed towards the backing roll (41) supporting the fibrous web (W) during and / or after wetting; that the detachable excess wetting fluid accumulates in a collection means (45) arranged at the gas / air blast or gas / air jet. 20 • ·: .V Arrangement according to Claim 8, characterized in that the collecting means (45) is a ·· · i *. · Collection vessel which is arranged in an inclined position or has a ·· ·: V bottom arranged in an inclined position. • · • · · n · · · «· · e I l | 25 Arrangement according to Claim 8 and / or 9, characterized in that the wetting fluid collected in the collecting means 4 · «(45) can be conducted, for example, by means of a flow channel or a flow tube (46) in fluid communication with the collecting means. • e • · • e # 9 : * * *; Arrangement according to one of Claims 6 to 10, characterized in that for uniform wetting of the fibrous web (W), the arrangement comprises cutting means (2) for cutting the edge strips (6) of the fibrous web (W) before the fibrous web wetting means (3). • 4 using a sturdy counter roll (41,22) e ·· • e 9 9 999 9 9 • 99 9 99 9 9 118814 Arrangement according to Claim 11, characterized in that the wetting of the fibrous web (W) extends over at least the entire CD direction of the fibrous web. Arrangement according to one of Claims 6 to 12, characterized in that the counter roll (22) supporting the fibrous web (W) is a separate counter roll (22) supporting the fibrous web before cooperating with the cutting means. Arrangement according to one of Claims 6 to 12, characterized in that the counter roll supporting the fibrous web (W) 10 is at least an integrated counter roll (41) common to the cutting means (2) and the wetting means (3) and cooperating with the cutting means. Arrangement according to one of Claims 6 to 12, characterized in that the counter roll supporting the fibrous web (W) is an integrated counter roll (41) common to the cutting means (2) and the wetting means (3) and to the excess wetting fluid. Arrangement according to one of Claims 11 to 15, characterized in that the cutting means (2) include a cutting blade (23) which cuts the edge band (6) substantially before the wetting means (3). 20 · · V: Arrangement according to Claim 15, characterized in that the cutting means (2) ·· e • '. · Includes an edge band cutter comprising a rotary cutting blade (23) with a diameter of ·· · • between 7 cm -17 cm, more preferably 10 cm -15, most preferably about 12 cm, and a high · (·: : 25 to rotate, preferably in the direction of travel of the fiber web (W). Arrangement according to one of Claims 13 to 17, characterized in that the edge strip • '\. (6) at least two circumferential grooves (24) are formed for cutting into the counter roll (41,22), and that • 1 1 1 · the cutting blade (23) rotates inside the circumferential groove to extend the depth of cut • · · (a. 30 than the thickness of the fibrous web (W) , whereby the width of the cut edge band (6) is • e. can be defined by the CD blade movable in the fiber web and by the circumferential groove e ·.