Method for producing kraft paper

Abstract

The invention relates to a method for producing kraft paper, comprising the following steps: forming a fibrous web extending in the machine direction (1) by continuously applying a fibrous suspension to a wire section (2) by a headbox (3); pressing the fibrous web, which has been partially dewatered in the wire section (2), in a press section (5); optionally, compacting the formed fibrous web by a compacting apparatus (21), in particular by a Clupak-device, in the longitudinal machine direction; further drying the fibrous web in a dryer section (6); optionally calendering, in particular embossing, of the fibrous web in a calendering station (22); winding the paper web formed from the fibrous web in a reeling station (7), wherein the production speed exceeds 600 m / min, and wherein the width of the fibrous web exceeds 4.5 m and, in particular, exceeds 5.5 m. The invention also relates to a system for producing kraft paper.

Description

Method for producing kraft paper In one aspect, the present invention relates to a method for producing kraft paper. In further aspects, the invention relates in particular to kraft paper per se, a kraft paper production system and various individual system components. Various methods for producing kraft paper are known in the prior art. Kraft paper is a specific paper type that is characterised, among other things, by the fact that it has a particularly high strength and is used for various packaging applications due to this property, such as the production of paper bags. In addition to strength, other parameters are also important depending on the specific application of the kraft paper, for example extensibility or air permeability. The properties of grades of paper depend largely on the conditions under which they are produced. An object of the present invention can therefore be seen in creating a method and a system which can provide a kraft paper with an improved property profile compared to the prior art and / or which enables improved efficiency in the production of kraft paper. A system for producing kraft paper, various system parts and components thereof are disclosed. In particular, these are a wire section having a shaking apparatus, a compacting apparatus having a belt drive, a compacting apparatus having an adjusting device, a compacting apparatus having an emergency operation function, a compacting apparatus having a bypass assembly, a compacting apparatus having a release agent dispensing assembly, a dryer section having a contact drying portion, a dryer section having an impingement drying portion, and an embossing station. Unless otherwise stated or recognisable from the context, individual system parts or components may be present, omitted or replaced by conventional structures. For example, a compacting apparatus and / or an embossing station with one or more of the features described herein may be present, may optionally be omitted or may be of conventional configuration. A wire section and / or a dryer section may be present with one or more of the features described herein or be of conventional configuration. A method for producing kraft paper is disclosed, which comprises various method steps. In particular, these include the shaking of the fibrous web in a wire section, compacting and drying of the fibrous web in a compacting apparatus with a belt drive, compacting and drying of the fibrous web in a compacting apparatus with an adjusting device, compacting and drying of the fibrous web in a compacting apparatus with an emergency operation function, compacting and drying of the fibrous web in a compacting apparatus with a bypass assembly, compacting and drying of the fibrous web in a compacting apparatus with a release agent dispensing assembly, drying of the fibrous web in a dryer section with a contact drying portion, drying of the fibrous web in a dryer section with an impingement drying portion, and embossing of the fibrous web in an embossing station. Unless otherwise stated or recognisable from the context, individual steps may be present, omitted or replaced by conventional components. For example, the fibrous web may be treated by compacting and / or embossing according to one or more of the method steps described herein; optionally, this step may also be omitted or may be of conventional configuration. The shaking and / or drying of the fibrous web may be performed using one or more of the method steps described herein or may be of conventional configuration. Optionally, the invention relates to a method for producing kraft paper comprising the following steps: - forming a fibrous web extending in the machine direction by continuously applying a fibrous suspension to a wire section by a headbox, - shaking the fibrous web transversely to the machine direction, i.e., in the cross direction, using a shaking apparatus, - pressing the fibrous web, which has been partially dewatered in the wire section, in a press section, - further drying the fibrous web in a dryer section, - winding the paper web formed from the fibrous web in a reeling station. Optionally, it is provided that the wire section comprises a continuously circulating dewatering wire, and the fibrous suspension is applied to the outer side of the dewatering wire in the area of a breast roll of the wire section, wherein the wire section includes a first dewatering portion in which a first dewatering apparatus, which dewaters the fibrous web from below, is arranged on the inner side of the dewatering wire. Optionally, it is provided that the shaking apparatus causes the dewatering wire to oscillate in the cross direction in the area of the breast roll, that, in the fibrous web travel direction, a second dewatering portion is arranged following the first dewatering portion, in which a second dewatering apparatus is provided to dewater the fibrous web from above, and that the stock consistency of the fibrous suspension applied to the wire section is at most 0.4 %, preferably at most 0.3 %, and more preferably between 0.15 % and 0.3 %. Optionally, it is provided that the dewatering wire oscillates in the area of the breast roll with an amplitude of at least 15 mm. Optionally, it is provided that the dewatering wire oscillates in the area of the breast roll at a frequency of between 5 Hz and 10 Hz. Optionally, it is provided that in the second dewatering portion, at least four former strips extending in the cross direction are provided on the inner side of the dewatering wire, which exert a pressure of between 2 and 25 kPa on the dewatering wire in the direction of the second dewatering apparatus. Optionally, it is provided that the second dewatering apparatus comprises at least one, and in particular at least three, suction zones arranged in succession in the fibrous web travel direction, which are operated, in particular, at a vacuum of between 5 and 25 kPa. Optionally, it is provided that in the second dewatering portion, a continuously circulating Topformer dewatering wire is guided between the second dewatering apparatus and the fibrous web. Optionally, it is provided that the production speed exceeds 400 m / min, and that the width of the fibrous web exceeds 3.5 m and, in particular, exceeds 5.5 m. Optionally, it is provided that the extensibility of the paper web in cross direction, in particular as determined in accordance with ISO 1924-3:2005, exceeds 6.5 %, preferably exceeds 7.5 %, and that the difference in the extensibility of the paper web in the cross direction between the edge area and the centre area of the paper web is at most 1.5 %. Optionally, it is provided that the fibrous material is unbleached pulp. Optionally, it is provided that the fibrous material is formed from softwood long fibres with an average fibre length of at least 2 mm, in accordance with ISO 16065-2:2014. Optionally, it is provided that the fibrous material has a kappa number of at least 30, in particular of at least 45, preferably of at least 50. Optionally, it is provided that the speed of the dewatering wire of the wire section is between 97 % and 99 % of the jet velocity of the headbox. Optionally, it is provided that the Ambertec formation of the paper web is at most <semantics>0.7(g / m2)<annotation encoding="application / x-tex">0.7 \sqrt{(g / m^2)}< / annotation>< / semantics>. Optionally, it is provided that the Gurley air resistance of the paper web, in particular according to ISO 5636-5:2013, is at most 15 s, preferably at most 10 s. Optionally, it is provided that the tensile energy absorption index of the paper web in the cross direction, in particular as determined in accordance with ISO 1924-3:2005, is at least 2.5 J / g, preferably at least 3.0 J / g. Optionally, it is provided that the dryer section comprises a pre-dryer section and an after- dryer section, and that the fibrous web is compacted between the pre-dryer section and the after-dryer section by a compacting apparatus, in particular by a Clupak device. Optionally, it is provided that the fibrous web is calendered / embossed in a calendering apparatus or an embossing apparatus after the dryer section. Optionally, the fibrous web is compressed in a compacting apparatus, wherein the compacting apparatus is configured in particular as a Clupak device. Optionally, it is provided that a circulating belt is driven by a belt drive. Optionally, it is provided that a counter roll is driven by a counter roll drive. Optionally, it is provided that in a compacting mode of the compacting apparatus, the fibrous web passes through a compaction nip provided between the belt and the counter roll at production speed, and is conveyed therein between the moving belt and the counter roll, and thereby compacted in the machine flow direction. Optionally, it is provided that in the compacting mode, the belt is driven by a belt drive. Optionally, it is provided that in the compacting mode, the counter roll is driven by the counter roll drive, whereby in the compacting mode the belt and the counter roll are each driven by a respective drive. Optionally, it is provided that the drive speeds of the belt drive and the counter roll drive are controllable independently of one another. It may be advantageous, if the compacting apparatus compacts the fibrous web in the machine flow direction between the pre-dryer section and the after-dryer section. It may be advantageous, if the compacting apparatus compacts the fibrous web at a dry content of 55 % to 70 %. Optionally, it is provided that the compacting apparatus comprises a circulating belt, a nip bar, a wrap roll, a counter roll and preferably a belt drive roll. Optionally, it is provided that the compacting apparatus has a compacting mode in which the circulating belt is pressed towards the counter roll by the nip bar and wraps around the counter roll over a wrap angle. Optionally, it is provided that in the compacting mode, a compaction nip is formed between the belt and the counter roll, which is designed to convey the fibrous web at production speed, thereby compacting it in the machine flow direction. Optionally, it is provided that the wrap angle can be changed and set by displacing the wrap roll using an adjusting device. Optionally, it is provided that the wrap angle can be adjusted by at least 10°, in particular by at least 20°, in particular by at least 25°, in particular by at least 40° or in particular by at least 60°, - and / or that the wrap angle can be adjusted between 15° and 90°, preferably between 20° and 60°. Optionally, it is provided that the displacement of the wrap roll is compensated with a substantially constant belt length by displacing a compensating roll that is displaceable along a compensating path. Optionally, it is provided that the compensating roll can be moved along the compensating path by more than 10 cm, in particular by more than 45 cm and preferably between 5 cm or 10 cm and 55 cm. Optionally, it is provided that the compensating roll acts as a tension roll for tensioning the belt. Optionally, it is provided that the compensating roll is the tension roll for tensioning the belt. Optionally, it is provided that the fibrous web emerging from the compaction nip or leaving the counter roll is guided or deflected by a guide roller arranged downstream of the counter roll in the machine flow direction. Optionally, it is provided that the guide roller can be displaced to change the paper web wrap angle of the fibrous web around the counter roll. Optionally, it is provided that in compacting mode, the belt is guided around the counter roll by the wrap roll and the nip bar over a wrap angle. Optionally, it is provided that the adjusting device changes or can change the position of the wrap roll and thus the wrap angle in or during the compacting mode and preferably at production speed. Optionally, it is provided that in the compacting mode, the nip bar is pressed toward the counter roll with a force of at least 5 kN / m, in particular at least 45 kN / m, preferably between 5 kN / m or 45 kN / m and 70 kN / m. Optionally, it is provided that in the compacting mode, the counter roll is heated. Optionally, it is provided that the counter roll is heated at a steam pressure of 2 bar to 15 bar, and / or at a temperature of 70 °C up to 180 °C. Optionally, the compacting apparatus may be operated in a compacting mode in which the circulating belt is pressed towards the counter roll by the nip bar and wraps around the counter roll over a wrap angle, wherein, in the compacting mode, a compaction nip is formed between the belt and the counter roll, which is designed to convey the fibrous web at production speed, thereby compacting it in the machine flow direction. Optionally, the compacting apparatus may be operated in an emergency operation mode, in which the nip bar is retracted compared to the compacting mode, so that a gap is formed between the belt and the counter roll. Preferably, the gap is larger than 5 mm. Optionally, it is provided that the separation time of the emergency operation mode, i.e. the time required to form a gap between the belt and the counter roll starting from the compacting mode, is less than 2 s, preferably less than 1 s. Optionally, it is provided that the position of the wrap roll is changed in the emergency operation mode in such a way that the belt is lifted off the counter roll. Optionally, it is provided that the tension roll retensions the belt in emergency operation mode and thus lifts it off the counter roll. Optionally, it is provided that a web break signal from a sensor for detecting a malfunction, such as an at least partial web break in the fibrous web, is processed and directly or indirectly activates the emergency operation mode. Optionally, it is provided that the fibrous web is cut off by a web cutting device in an area upstream of the compacting apparatus in the machine flow direction before or during the emergency operation mode. Optionally, it is provided that the web break signal is processed and directly or indirectly activates the web cutting device. Optionally, it is provided that a belt drive drives the belt drive roll and thus the belt in emergency operation mode, even if a gap has already formed between the belt and the counter roll. Optionally, it is provided that the belt drive preferably may drive or drives the belt at a circulation speed that substantially corresponds to the production speed. Optionally, it is provided that a counter roll drive drives the counter roll in emergency operation mode, even if a gap has already formed between the belt and the counter roll. Optionally, it is provided that the counter roll drive preferably may drive or drives the counter roll at a circulation speed that substantially corresponds to the production speed. Optionally, it is provided that the nip bar is retracted pneumatically or hydraulically in emergency operation mode, in particular by a bellows cylinder. Optionally, the speeds of the belt and the counter roll can be increased to production speed without requiring contact or pressing of the belt against the counter roll. The wear on the compacting apparatus during starting of the system is reduced, and the maintenance interval is extended. Further, if the paper in the system begins to tear, the nip bar can be immediately returned to its retracted position, e.g., in less than 2 seconds or, preferably, in less than one second, thereby switching the compacting apparatus from the compacting mode to the emergency operation mode. Again, the belt and the counter roll can preferably continue to move at production speed without any slippage occurring between the counter roll and the belt, which would lead to excessive wear on the belt. Hence, maintenance intervals are extended and the efficiency of the system is improved. Optionally, it is provided that the fibrous web selectively: - in a compacting apparatus, in particular a Clupak device, runs through a compaction nip provided between a belt and a counter roll and is conveyed between the moving belt and the moving counter roll, where it is compacted in the machine flow direction, - or is conveyed along a bypass path via a bypass assembly, bypassing the compacting apparatus. Optionally, the method comprises the step that the fibrous web is conveyed by the bypass assembly by bypassing the compacting apparatus but not by bypassing other system components. Optionally, the method comprises the step that the compacting apparatus is arranged in the machine flow direction between a system component upstream of the compacting apparatus and a system component downstream of the compacting apparatus, and the fibrous web is conveyed along the bypass path of the bypass assembly from the exit of the upstream system component to the entrance of the downstream system component. Optionally, the method comprises the step that the fibrous web is dried in a pre-dryer section of the dryer section and in an after-dryer section of the dryer section downstream of the pre-dryer section in the machine flow direction. Optionally, the method comprises the step that the compacting apparatus is arranged between the pre-dryer section and the after-dryer section in the machine flow direction. Optionally, the method comprises the step that the bypass assembly conveys or can convey the fibrous web from the pre-dryer section to the after-dryer section, bypassing the compacting apparatus. Optionally, the method comprises the step that a strip of the fibrous web is selectively guided with a rope guide through the bypass assembly or through the compacting apparatus. Optionally, the method comprises the step that a bypass rope guide of the rope guide guides the strip of the fibrous web through or into the bypass assembly and a compaction rope guide of the rope guide guides the strip of the fibrous web through or into the compacting apparatus. Optionally, the method comprises the step that the bypass rope guide and the compaction rope guide are provided permanently or simultaneously next to each other, but only selectively guide the strip of the fibrous web. Optionally, the method comprises the step that the bypass rope guide guides the strip through or into the bypass assembly with a first rope pair, in particular with a first rope and a second rope. Optionally, the method comprises the step that the compaction rope guide guides the strip through or into the compacting apparatus with a second rope pair, in particular with a third rope and a fourth rope. Optionally, the method comprises the step that the rope guide guides the strip into the downstream component of the system, following the bypass rope guide and following the compaction rope guide, in a section with a further rope pair. Optionally, the method comprises the step that the ropes are driven by one or more rope drives and in particular by a first rope drive and a second rope drive. Optionally, the method comprises the step that the first rope drive drives a rope of the first rope pair and a rope of the second rope pair. Optionally, the method comprises the step that the second rope drive drives the other rope of the first rope pair and the other rope of the second rope pair. Optionally, the method comprises the step that the first rope drive drives the second rope and the third rope and the second rope drive drives the first rope and the fourth rope. Optionally, the method comprises the step that the bypass assembly conveys the fibrous web at production speed, wherein the production speed exceeds 400 m / min, in particular exceeds 600 m / min. Optionally, the method comprises the steps that a first grade of kraft paper is produced when the fibrous web passes through the compacting apparatus, - and that a second grade of kraft paper is produced when the fibrous web passes through the bypass assembly, bypassing the compacting apparatus, while optionally the compacting apparatus is in maintenance. Optionally, the method comprises the step that a release agent dispensing assembly with release agent nozzles dispenses a release agent onto the lateral surface of the counter roll. Preferably, the method comprises the step that the release agent is dispensed discontinuously, pulsed via intermittently operated nozzle valves through the nozzles. Optionally, the method comprises the step that the release agent is dispensed over the entire width of the counter roll via a nozzle beam extending parallel to the axis of rotation of the counter roll, the nozzles being arranged along the length of the nozzle beam. Optionally, it is provided that the dryer section comprises a dryer section portion having a contact drying region which is arranged upstream of an impingement drying region in the machine flow direction, wherein at least two, in particular three, drying cylinders arranged one after the other in the machine flow direction are provided in the contact drying region. Optionally, it is provided that a separate, continuously circulating drying wire, which follows the outer circumference of the respective drying cylinder in a pressing region, is provided for each drying cylinder, and that the drying wire presses the fibrous web against the outer circumference of the drying cylinder. A so-called draw section may be provided between the drying cylinders of the contact drying region. In this draw section, the fibrous web is in particular subjected to a free draw. This means that the fibrous web is not in contact with any apparatuses along this draw section, i.e. in particular neither with a drying cylinder nor with a drying wire. The length of a draw section may, in particular, be the distance travelled by the fibrous web between the end of one pressing region and the start of the next pressing region. Optionally, it is provided that drying takes place in a pre-dryer section and in an after- dryer section, and that the dryer section portion is arranged in the after-dryer section or forms the after-dryer section. Optionally, it is provided that the fibrous web has a dry content of at least 55 wt%, in particular at least 65 wt%, when entering the dryer section portion and / or that the fibrous web has a dry content of at most 95 wt%, in particular of at most 85 wt%, when leaving the dryer section portion. Optionally, it is provided that the rotational speed of the first drying cylinder of the contact drying region in the machine flow direction is lower, in particular up to 7 % lower, than the travelling speed of the fibrous web entering the dryer section portion. Optionally, it is provided that the rotational speed of the second drying cylinder of the contact drying region in the machine flow direction is greater, in particular up to 0.15 % greater, than the travelling speed of the fibrous web between the first and second drying cylinder, and / or that the rotational speed of the third drying cylinder of the contact drying region in the machine flow direction is greater, in particular up to 0.10 % greater, than the travelling speed of the fibrous web between the second and third drying cylinder. Optionally, it is provided that the rotational speed of the cylindrical roll of an impingement drying apparatus of the impingement drying region directly following the contact drying region is greater than or equal to the travelling speed of the fibrous web exiting the contact drying region, wherein the speed difference is in particular between 0 % and 0.10 %. Optionally, it is provided that the dryer section comprises an impingement drying region, which has at least one impingement drying portion, in particular three impingement drying portions, wherein each impingement drying portion is delimited upstream and downstream in the machine flow direction by a respective drying cylinder to which a drying wire is assigned, the drying wire following the outer circumference of the drying cylinder in a pressing region and in particular presses a fibrous web passing through the dryer section portion against the drying cylinder. Optionally, it is provided that the fibrous web passes through a free shrinkage segment in the impingement drying portion, which is arranged between the outlet of the pressing region arranged upstream in the machine flow direction and the inlet of the pressing region arranged downstream in the machine flow direction, wherein the free shrinkage segment has a length of at least 15.0 m. Optionally, it is provided that the travelling speed of the fibrous web is at least 600 m / min. Optionally, it is provided that cylindrical rollers in the impingement drying portion are heated to a temperature of at least 110°C. Optionally, it is provided that drying hoods in the impingement drying portion are heated to a temperature of at least 160°C, optionally up to 400°C. Optionally, it is provided that the fibrous web has a dry content of at least 55 wt%, in particular at least 65 wt%, when entering the dryer section portion and / or that the fibrous web has a dry content of at most 95 wt%, in particular of at most 85 wt%, when leaving the dryer section portion. Optionally, it is provided that after drying in the dryer section, the fibrous web is embossed in an embossing station. Optionally, it is provided that the fibrous web has a dry content of at least 85 wt% when entering the embossing station. Optionally, it is provided that the fibrous web is provided with an embossing structure during embossing, which is formed from an arrangement of embossments, wherein the embossments have a height of at least 0.1 mm, in particular between 0.1 mm and 2 mm. Optionally, it is provided that the embossments have a rectangular, spherical-segment- shaped, pyramidal or prismatic geometry. Optionally, it is provided that neighbouring embossments are directly adjacent to one another in the machine direction and in the cross direction of the fibrous web. Optionally, it is provided that neighbouring embossments are spaced apart by a planar portion of the fibrous web, wherein the distance between neighbouring embossments in the machine direction of the fibrous web is at least 0.5 mm, in particular between 0.5 mm and 5.0 mm, and / or wherein the distance between neighbouring embossments in the cross direction of the fibrous web is at least 0.5 mm, in particular between 0.5 mm and 5.0 mm. Optionally, it is provided that the embossing station comprises an embossing roll, wherein the embossing roll is equipped with an embossing profile on its surface. Optionally, it is provided that the embossing profile of the embossing roll is cleaned, in particular during embossing, by a cleaning brush, wherein a cleaning agent, in particular a water-air mixture, is applied to the embossing profile. Optionally, it is provided that the cleaning brush rotates about an axis of rotation aligned substantially parallel to the axis of rotation of the embossing roll, and / or that the cleaning brush is moved back and forth substantially parallel to the axis of rotation of the embossing roll. Optionally, it is provided that the surface temperature of the embossing roll is between 20°C and 100°C during embossing. Optionally, the invention relates to a system for producing kraft paper comprising the following system components: - a wire section for forming a fibrous web by continuously applying a fibrous suspension in the machine flow direction by a headbox, _ a press section for pressing the fibrous web that has been partially dewatered in the wire section, - a dryer section for drying the fibrous web, - a reeling station for winding the paper web formed from the fibrous web. Optionally, the wire section comprises a continuously circulating dewatering wire, to the outer side of which a fibrous suspension is applicable in the area of a breast roll, wherein the wire section has a first dewatering portion in which a first dewatering apparatus for dewatering the fibrous web from below is arranged on the inner side of the dewatering wire. Optionally, it is provided that in the wire section, a shaking apparatus is provided, designed to cause the breast roll to oscillate transversely to the direction of travel of the dewatering wire, and that, in the direction of travel of the dewatering wire, following the first dewatering portion, a second dewatering portion is arranged, where a second dewatering apparatus is provided on the outer side of the dewatering wire for dewatering the fibrous web from above. Optionally, it is provided that in the second dewatering portion, at least four former strips extending in the cross direction are provided on the inner side of the dewatering wire, that are designed to apply a pressure of between 2 and 25 kPa on the dewatering wire in the direction of the second dewatering apparatus. Optionally, it is provided that the second dewatering apparatus comprises at least one, and in particular at least three, suction zones arranged in succession in the travel direction of the dewatering wire, which in particular are operable with a vacuum of 5 - 25 kPa. Optionally, it is provided that in the second dewatering portion, between the second dewatering apparatus and the dewatering wire, a continuously circulating Topformer dewatering wire is arranged. Optionally, the invention also relates to a kraft paper obtained from a method according to the invention or obtainable therefrom. Optionally, the system comprises a compacting apparatus, in particular a Clupak device, for compacting the fibrous web. Optionally, it is provided that the compacting apparatus is arranged between the pre-dryer section and the after-dryer section and compacts the fibrous web between the pre-dryer section and the after-dryer section in the machine flow direction. Optionally, it is provided that the compacting apparatus compacts the fibrous web at a dry content of 55 % to 70 %. Preferably, the compacting apparatus has a circulating belt, a belt drive driving the belt, a counter roll, a counter roll drive driving the counter roll and a compaction nip formed between the belt and the counter roll. Preferably, the compacting apparatus has a compacting mode, in which it is operated in such a way that the fibrous web passes through the compaction nip at production speed, is conveyed therein between the moving belt and the moving counter roll, and is thereby compacted in the machine flow direction. Preferably, it is provided that in the compacting mode, the belt is driven by the belt drive. Preferably, it is provided that in the compacting mode, the counter roll is driven by the counter roll drive, whereby in the compacting mode the belt and the counter roll are each driven by a respective drive. Optionally, it is provided that the drive speeds of the belt drive and the counter roll drive are controllable independently of one another. Optionally, it is provided that in the compacting mode, the circulation speed of the belt and the circulation speed of the counter roll exceed 400 m / min, in particular exceed 600 m / min, and substantially equal the production speed. Optionally, it is provided that a belt drive roll is provided which transmits the drive torque of the belt drive to the belt, wherein the belt roll is in particular in direct contact with the belt, and wherein the belt roll is provided in addition to the counter roll. In particular, the two drives provide more than 25% of the required drive power. Preferably, the two drives provide about 50% of the required drive power. Preferably, in the compacting mode, a tension roll for tensioning the belt is provided. Preferably, an adjustable nip bar is provided inside the belt, which is shifted towards the counter roll in the compacting mode and presses the belt towards the counter roll in the area of the compaction nip. In particular, in the compacting mode, the belt is compressed between the nip bar and the counter roll. Optionally, the compacting apparatus has as an alternative to the compacting mode a free-running mode, in which, compared to the compacting mode, the nip bar is in a retracted position and the belt thereby exerts no pressure or reduced pressure on the counter roll as compared to the compacting mode. In the free-running mode, the belt is driven by the belt drive and the counter roll is driven by the counter roll drive. Optionally, it is provided that in the compacting mode, the nip bar is pressed towards the counter roll with a force of at least 5 kN / m, in particular of at least 10 kN / m, in particular of at least 45 kN / m, and preferably of 5 kN / or 10 kN / m or 40 kN / m to 70 kN / m. Optionally, it is provided that the belt thickness is more than 15 mm, in particular more than 20 mm and preferably 20 mm to 30 mm. Optionally, it is provided that the belt has a belt width measured transversely to the machine flow direction of more than 3.5 m, in particular more than 5.5 m. Optionally, it is provided that the belt has a Shore A hardness between 40 and 70, in particular between 50 and 60. Optionally, it is provided that, in the compacting mode, the counter roll is heated. Optionally, it is provided that the counter roll is heated at a steam pressure of 2 bar to 15 bar, and / or at a temperature of 70°C up to 180°C. Preferably, the production speed of this system exceeds 400 m / min. The width of the fibrous web and the resulting paper web preferably exceeds 3.5 m, in particular exceeds 5.5 m, and typically exceeds 6.0 m. Optionally, the belt and drive roll have a width of at least 4.0 m, in particular at least 7.0 m, typically at least 8.0 m. Optionally, the production speed is at least 600 m / min, in particular at least 1000 m / min least or at least 1100 m / min. Preferably, a circulating belt, a nip bar, a wrap roll, a counter roll and preferably a belt drive roll are provided. Preferably, the compacting apparatus has a compacting mode in which the circulating belt is pressed towards the counter roll by the nip bar and in which the belt wraps around the counter roll over a wrap angle. Preferably, in the compacting mode, a compaction nip is formed between the belt and the counter roll, which is designed to convey the fibrous web at production speed, thereby compacting it in the machine flow direction. Preferably, an adjusting device for displacing the wrap roll and thereby for setting the wrap angle is provided. By changing the wrap angle, the compaction of the fibrous web can be flexibly and precisely set, in particular controlled. Optionally, the adjusting device is configured such that the wrap angle can be adjusted by at least 10°, in particular by at least 20°, in particular by at least 25°, in particular by at least 40° or in particular by at least 60°. Optionally, the adjusting device is configured such that the wrap angle of the belt can be adjusted between 15° and 90°, preferably between 20° and 60°, optionally between 25° and 55°. Optionally, a compensating roll displaceable along a compensating path is provided to compensate for the displacement of the wrap roll while the belt length remains substantially constant. Optionally, the compensating roll has a freedom of movement or a stroke of more than 10 cm along the compensating path, in particular more than 20 cm, in particular more than 45 cm and preferably between 5 cm and 55 cm. Optionally, the compensating roll acts as a tension roll for tensioning the belt. Optionally, the compensating roll is the tension roll, in particular the only tension roll, for tensioning the belt. Optionally, a guide roller is provided downstream of the counter roll in the machine flow direction to guide or deflect the fibrous web emerging from the compaction nip or leaving the counter roll. Optionally, the guide roller is displaceable to change the paper web wrap angle of the fibrous web around the counter roll. This allows the contact time and thus the heat input of the heated counter roll onto the fibrous web to be set. Optionally, the wrap roll is mounted in pivot bearings on both sides. Optionally, the adjusting device comprises means for changing and fixing the position of the pivot bearings relative to the counter roll. Optionally, the adjusting device comprises a guide arrangement for guiding the pivot bearings or their bearing blocks and a drive for changing the position of the pivot bearings relative to the counter roller. Optionally, the drive is a hydraulic or electromechanical drive. Optionally, the wrap roll and the nip bar are arranged successively along the course of the belt on the inner side of the belt. Optionally, the counter roll is arranged in the area between the wrap roll and the nip bar on the outer side of the belt. Optionally, in compacting mode, the belt is guided around the counter roll by the wrap roll and the nip bar over a wrap angle. Optionally, the belt is an endless belt, along the course of which the belt drive roll, the nip bar, the counter roll, the wrap roll and the compensating roll, which is preferably configured as a tension roll, are arranged one after the other. In all embodiments, the axes of rotation of the counter roll and the wrap roll extend preferably parallel to each other. In all embodiments, the axes of rotation of the counter roll and the wrap roll extend preferably parallel to each other, even if the wrap angle is changed or is being changed. In all embodiments, the axes of rotation of the counter roll and the guide roll preferably extend parallel to each other, in particular even if the paper web wrap angle is changed or is being changed. Optionally, it is provided that the compacting apparatus may be operated in an emergency operation mode, in which the nip bar is retracted compared to the compacting mode, so that a gap is formed between the belt and the counter roll. Preferably, a bypass assembly is provided for conveying the fibrous web along a bypass path, bypassing the compacting apparatus. If the fibrous web cannot be guided through the compacting apparatus due to a fault or maintenance work, in the present design it can be guided past the compacting apparatus by a bypass assembly, but continue to pass through other sections of the system, in particular all other sections of the system. Due to this specific configuration, the fibrous web can continue to be conveyed even if the compacting apparatus is inoperative. As a result, the system can continue to operate, with the exception of the compacting apparatus, and production does not have to be stopped. This can eliminate the time-consuming start-up process of the system. Additionally, if the fibrous web is guided past the compacting apparatus through the bypass assembly, kraft paper can be produced that has different product properties than in an operating mode in which the fibrous web passes through the compacting apparatus. There are paper types, for example, that do not require longitudinal compacting in a compacting apparatus. These advantages can increase the efficiency of the system. Preferably, the bypass assembly is provided exclusively in the area of the compacting apparatus and is designed to transport the fibrous web by bypassing the compacting apparatus but not by bypassing other system components. Preferably, the compacting apparatus is arranged in the machine flow direction between a system component upstream of the compacting apparatus and a system component downstream of the compacting apparatus. The bypass path of the bypass assembly preferably extends from the exit of the upstream system component to the entrance of the downstream system component. Optionally, it is provided that the dryer section comprises a pre-dryer section and an after- dryer section arranged downstream of the pre-dryer section in the machine flow direction. Optionally, it is provided that the compacting apparatus is arranged in the machine flow direction between the pre-dryer section and the after-dryer section, and that the bypass assembly conveys or can convey the fibrous web from the pre-dryer section to the after- dryer section, bypassing the compacting apparatus. Optionally, it is provided that the bypass assembly comprises an adjustable diverter for selectively conveying the fibrous web or a strip of the fibrous web through the compacting apparatus or through the bypass path. In all embodiments, the strip may, for example, be about 10 cm to 25 cm wide. In all embodiments, the strip should be narrower than the width of the produced paper web. Optionally, it is provided that the diverter is configured, for example, as an adjustable suction belt or vacuum belt. Optionally, it is provided that a rope guide is provided for selectively guiding a strip of the fibrous web through the bypass assembly or through the compacting apparatus. Optionally, it is provided that the rope guide comprises a bypass rope guide for guiding the strip of the fibrous web through or into the bypass assembly and a compaction rope guide for guiding the strip of the fibrous web through or into the compacting apparatus. Optionally, it is provided that the bypass rope guide and the compaction rope guide are provided permanently and / or simultaneously next to each other. Optionally, it is provided that the bypass rope guide comprises a first rope pair, in particular a first rope and a second rope, for guiding the strip through or into the bypass assembly. Optionally, it is provided that the compaction rope guide comprises a second rope pair, in particular a third rope and a fourth rope, for guiding the strip through or into the compacting apparatus. Optionally, it is provided that the rope guide has a portion with a further rope pair following the bypass rope guide and following the compaction rope guide, for guiding the strip into the downstream component of the system. Optionally, it is provided that the further rope pair is preferably formed by a rope of the first rope pair and a rope of the second rope pair, in particular by the first rope and the fourth rope. Optionally, one or more rope drives for driving the ropes and, in particular, a first rope drive and a second rope drive are provided. Optionally, it is provided that the first rope drive drives a rope of the first rope pair and a rope of the second rope pair. Optionally, it is provided that the second rope drive drives the other rope of the first rope pair and the other rope of the second rope pair. Optionally, it is provided that the first rope drive drives the second rope and the third rope and the second rope drive drives the first rope and the fourth rope. Optionally, a displaceable adjusting roller is provided in the portion where the bypass rope guide and the compaction rope guide are joined. Optionally, it is provided that the adjusting roller changes the path of at least one of the ropes during its displacement in such a way that the strip of the fibrous web, depending on whether it comes from the bypass rope guide or from the compaction rope guide, is guided further along the rope guide to the downstream system component. Optionally, a deflection roller is provided in the portion where the bypass rope guide and the compaction rope guide are joined. Optionally, it is provided that when the strip of the fibrous web is guided along the bypass rope guide, the third rope is looped around the deflection roller by the adjusting roller in such a way that it is guided further between the first rope and the fourth rope. Optionally, it is provided that when the strip of the fibrous web is guided along the compaction rope guide, the third rope is displaced by the adjusting roller in such a way that the strip runs unhindered from the compaction rope guide into the further rope guide. The system may comprise a conventional compacting apparatus and the bypass assembly may in principle be operated with any type of compacting apparatus. Optionally, the compacting apparatus may however have modifications that are necessary for the diversion along the bypass path. The same applies to the method. Preferably, a release agent dispensing assembly with release agent nozzles is provided for dispensing a release agent onto the lateral surface of the counter roll. Preferably, the release agent nozzles have intermittently operated nozzle valves for discontinuous, pulsed discharge of the release agent. Preferably, a nozzle beam is provided, along the length of which the nozzles are arranged. The nozzle beam preferably extends parallel to the axis of rotation of the counter roll. Optionally, it is provided that the nozzles dispense the release agent across the entire width of the counter roll. The entire width is the width at which the fibrous web contacts the surface in compaction mode. Optionally, it is provided that the nozzle valves have a pulse frequency, i.e. a frequency of the release agent dispensing per second, of 10 Hz to 30 Hz, preferably of 15 Hz to 25 Hz. Optionally, it is provided that the nozzle valves have an adjustable pulse frequency of 10 Hz to 30 Hz, preferably 15 Hz to 25 Hz. Optionally, it is provided that the nozzle valves have an adjustable opening duration of the individual pulses of the release agent dispensing. Optionally, it is provided that the opening duration of the nozzle valves per pulse is between 400 µs and 1200 µs, in particular between 500 µs and 1000 µs. Optionally, it is provided that the nozzle pressure, i.e. in particular the pressure of the release agent in the area immediately upstream of the release agent nozzle, is between 1 bar and 3 bar. Optionally, it is provided that the volume flow of the release agent per release agent nozzle is between 50 ml / min and 600 ml / min, preferably between 80 ml / min and 500 ml / min. Optionally, it is provided that the total volume flow of the release agent is between 0.15 l / min and 1 l / min per metre of nozzle beam length, depending on the length of the nozzle beam. Optionally, it is provided that the total volume flow rate for a 6 m long nozzle beam is between 1 l / min and 6 l / min. Optionally, it is provided that the release agent comprises silicone oil, - in particular that the release agent comprises silicone oil and water, _ in particular that the release agent comprises between 5 % and 20 % silicone oil and between 95 % and 80 % water, - in particular that the release agent comprises 10 % silicone oil and 90 % water, - and preferably that the release agent has a viscosity according to ISO 3219 of 150 mPAs to 250 mPAs and in particular of 200 mPAs. Optionally, a mixing vessel is provided for mixing the constituents of the release agent, in particular for mixing water and silicone oil. Optionally, a pressure vessel is provided in which the release agent is provided under overpressure for dispensing through the release agent nozzles. Optionally, it is provided that the nozzle beam comprises a distribution line that distributes the release agent to several or all nozzles. Optionally, it is provided that a scraper is provided, which scrapes the release agent dispensed by the release agent dispensing assembly from the counter roll. Optionally, the system comprises a dryer section portion, in particular an after-dryer section, for drying of a fibrous web, wherein the dryer section portion has a contact drying region which is arranged upstream of an impingement drying region in the machine flow direction, wherein at least two, in particular three, drying cylinders arranged one after the other in the machine flow direction are provided in the contact drying region. Optionally, it is provided that a separate, continuously circulating drying wire is provided for each drying cylinder, which follows the outer circumference of the respective drying cylinder in a pressing region. Optionally, it is provided that a draw section is provided between the drying cylinders, in particular between two drying cylinders arranged in immediate succession in the machine flow direction, in which the fibrous web is exposed. Optionally, it is provided that the fibrous web does not contact the outer circumference of a drying cylinder and / or a drying wire along the length of the draw section. Optionally, it is provided that the length of the draw section between two drying cylinders arranged in immediate succession in the machine flow direction is at least 0.5 m, in particular at least 1.0 m, and preferably between 1.0 m and 2.0 m. Optionally, it is provided that the wrap angle of the drying wire in the pressing region on the respective drying cylinder is at least 100°, in particular at least 140°. Optionally, it is provided that a separate drive apparatus is provided for each drying cylinder of the contact drying region, wherein the drive apparatuses are, in particular, separately controllable, and / or that a separate heating apparatus is provided for each drying cylinder of the contact drying region, wherein the heating apparatuses are, in particular, separately controllable. Optionally, it is provided that the drying cylinders are arranged in immediate succession in the machine flow direction. Optionally, it is provided that the drying wires are guided over guide rolls, wherein at least one of the guide rolls is designed as a spatially displaceable tension roll. Optionally, it is provided that a drying wire presses the fibrous web against the outer circumference of the respective drying cylinder in the pressing region. Optionally, it is provided that the dryer section comprises a pre-dryer section and an after- dryer section, and that the after-dryer section of the system is a dryer section portion having one or more of the features described herein. Optionally, it is provided that a compacting apparatus, in particular a Clupak device, is arranged between the pre-dryer section and the after-dryer section. Optionally, it is provided that the width of the drying wires is less than the width of the fibrous web, wherein the width of the drying wires is, in particular, at least 1 m, preferably at least 2 m, less than the width of the fibrous web. Optionally, the system comprises a dryer section portion, in particular an after-dryer section, for drying of a fibrous web, wherein the dryer section portion comprises an impingement drying region, which has at least one impingement drying portion, in particular three impingement drying portions, wherein each impingement drying portion is delimited upstream and downstream in the machine flow direction by a respective drying cylinder to which a drying wire is assigned, the drying wire following the outer circumference of the drying cylinder in a pressing region and in particular presses a fibrous web passing through the dryer section portion against the drying cylinder. Optionally, it is provided that the impingement drying portion is designed such that, between the outlet of the pressing region arranged upstream in the machine flow direction and the inlet of the pressing region arranged downstream in the machine flow direction, a fibrous web passing through the dryer section portion passes a free shrinkage segment of at least 15.0 m. Optionally, it is provided that the impingement drying portion comprises at least one impingement drying apparatus, wherein an impingement drying apparatus comprises a cylindrical roll around which the fibrous web is guided, and that a drying hood blowing hot air onto the surface of the fibrous web is assigned to the cylindrical roll. Optionally, it is provided that the impingement drying portion is free from drying wires. Optionally, it is provided that the fibrous web rests freely against the outer circumference of the cylindrical rolls in the impingement drying portion. Optionally, it is provided that the impingement drying portion comprises at least two, in particular three, impingement drying apparatuses, and that the impingement drying portion comprises a further drying cylinder, wherein the further drying cylinder is arranged between the two cylindrical rolls in the machine flow direction. Optionally, it is provided that a drying hood is assigned to the further drying cylinder, or that the further drying cylinder is designed without a drying hood. Optionally, it is provided that the impingement drying region follows a contact drying region in the machine flow direction, wherein in the contact drying region at least two, in particular three, drying cylinders arranged one after the other in the machine flow direction are provided, and wherein a continuously circulating drying wire is assigned to each drying cylinder, which follows the outer circumference of the respective drying cylinder in a pressing region. Optionally, it is provided that the dryer section comprises a pre-dryer section and an after- dryer section, and that the after-dryer section of the system is a dryer section portion as described herein. Optionally, it is provided that a compacting apparatus, in particular a Clupak device, is arranged between the pre-dryer section and the after-dryer section. Optionally, the system comprises an embossing station for embossing the fibrous web, arranged between the dryer section and the reeling station, in particular between the after-dryer section and the reeling station. Optionally, it is provided that the embossing station comprises an embossing roll and a counter roll, wherein an embossing nip is provided between the embossing roll and the counter roll, through which the fibrous web is guided for embossing, wherein the embossing roll is provided with an embossing profile on its surface, and wherein the counter roller has a resilient surface. Optionally, it is provided that the embossing station comprises a cleaning brush for cleaning the embossing profile of the embossing roll. Optionally, it is provided that the embossing station comprises an application apparatus for applying a cleaning agent, in particular an air-water mixture, to the embossing profile of the embossing roll. Optionally, it is provided that the cleaning brush is configured as a brush roll and has a rotary drive for rotating the cleaning brush about an axis of rotation, wherein the axis of rotation of the cleaning brush is arranged substantially parallel to the axis of rotation of the embossing roll. Optionally, it is provided that the cleaning brush has a displacement drive for moving the cleaning brush back and forth substantially parallel to the axis of rotation of the embossing roll. Optionally, it is provided that an adjusting apparatus is provided for adjusting the rolling pressure exerted on the fibrous web in the embossing nip. Optionally, the invention also relates to a paper per se, in particular a kraft paper, specifically a sack kraft paper. The paper may be produced by a method disclosed herein. Optionally, the extensibility of the kraft paper, in particular according to ISO 1924-3:2005, exceeds 5% in the cross direction, preferably exceeds 7.5%. Optionally, these values are also achieved in the machine flow direction. Optionally, the width of a paper web of the kraft paper exceeds 3.5 m and, in particular, exceeds 5.5 m, for example, exceeds 6.0 m. In the context of the present invention, the width refers in particular to the dimension of a paper web in the cross direction of the paper. Optionally, the difference in extensibility of the paper in the cross direction between the edge region and the centre region of the paper web is at most 4.0%, more preferably at most 3.0% and still more preferably at most 1.5%. In absolute terms, the extensibility of the paper web may be between 5% and 8% in the centre and between 7.5% and 12% at the edges, depending on the production process. The difference referred to is calculated in the context of the paper described herein, in particular by subtracting the two extensibility values, i.e. it is the absolute difference between these values. In a hypothetical example of a paper web with an extensibility of 7% in the centre and 8.4% at the edges, the aforementioned difference is therefore 1.4%. The edge area refers in particular to an area extending 50 cm from an outer edge of the paper web. The central area refers in particular to an area with a width of 50 cm, which extends 25 cm on either side of the geometric centre of a paper web determined in the width direction. Alternatively or additionally, it may also be provided that the average extensibility of the paper in the centre third of the paper web differs by less than 0.8 % from the extensibility in an outer third, in particular in both outer thirds, of the paper web. To determine the position of the two outer thirds and the centre third, the paper web is fictitiously divided into three portions of equal width in the width direction. The average extensibility is then determined in each third. The extensibility is measured in particular between 0.75 h and 1.5 h, typically 1.0 h, after the production of the kraft paper, i.e. after completion of the last production step. Optionally, the Ambertec formation of the paper is at most 0.7 <semantics>(g / m2)<annotation encoding="application / x-tex">\sqrt{(g / m^2)}< / annotation>< / semantics>. Optionally, the Gurley air resistance of the paper web, in particular according to ISO 5636- 5:2013, is at most 15 s, preferably at most 10 s. Optionally, the tensile energy absorption index of the paper in the machine direction, in particular as determined in accordance with ISO 1924-3:2005, is at least 2.5 J / g, preferably at least 3.0 J / g. Optionally, these values also apply to the machine direction of the paper. Optionally, the fibrous material contained in the paper is unbleached pulp. Optionally, the fibrous material contained in the paper is formed from softwood long fibres with an average fibre length of at least 2 mm. The fibre analysis may be performed in particular in accordance with ISO 16065-2:2014, for example optically with Fiber Tester L&W. Optionally, the fibrous material contained in the paper has a kappa number of at least 30, in particular of at least 40, preferably at least 50. Optionally, it is provided that the fibrous material is unbleached pulp. Optionally, it is provided that the fibrous material is formed from softwood long fibres with an average fibre length of at least 2 mm, in accordance with ISO 16065-2:2014. Optionally, it is provided that the paper has an embossing structure formed by an arrangement of embossments, wherein the embossments have a height of at least 0.1 mm, in particular between 0.1 mm and 2 mm. Optionally, it is provided that the embossments have a rectangular, spherical-segment- shaped, pyramidal or prismatic geometry. Optionally, it is provided that neighbouring embossments are directly adjacent to one another in the machine direction and in the cross direction of the paper. Optionally, it is provided that neighbouring embossments are spaced apart by a planar portion of the paper, wherein the distance between neighbouring embossments in the machine direction of the paper is at least 0.5 mm, in particular between 0.5 mm and 5.0 mm, and / or wherein the distance between neighbouring embossments in the cross direction of the paper is at least 0.5 mm, in particular between 0.5 mm and 5.0 mm. Optionally, the paper has dry-embossed embossments. The paper may have an extensibility according to ISO 1924-3:2005 in the cross direction and optionally also in the machine direction exceeding 5%, preferably exceeding 7.5%. Optionally, it is provided that the embossments are pyramidal with a rectangular base. Optionally, it is provided that the embossments are arranged in embossment rows, wherein the embossment rows extend in the cross direction of the kraft paper or at an angle of up to 5° to the cross direction of the kraft paper. Optionally, it is provided that the embossments of neighbouring embossment rows in the machine direction of the kraft paper have an offset in the cross direction of the kraft paper. Further, a wire section for a system for producing kraft paper is disclosed, having one or more of the features described herein. Further, a compacting apparatus, in particular a Clupak apparatus, is disclosed for a system for producing kraft paper, having one or more of the features described herein. Further, a dryer section, in particular an after-dryer section, for a system for producing kraft paper is disclosed, having one or more of the features described herein. Further, an embossing station for a system for producing kraft paper kraft paper is disclosed, having one or more of the features described herein. Further features of the invention become apparent from the claims, the figures and the description of the exemplary embodiments. In the following, the present invention will be discussed in detail with reference to exemplary embodiments. In the figures: Fig. 1a-c show a schematic overall view of a kraft paper production system according to a first exemplary embodiment of the invention; Fig. 2 shows a schematic detailed view of a wire section according to an exemplary embodiment; Fig. 3 shows a schematic detailed view of a compacting apparatus according to an exemplary embodiment; Fig. 4 shows a schematic detailed view of a compacting apparatus according to an exemplary embodiment; Fig. 5 shows a schematic view of a compacting apparatus and a bypass assembly according to an exemplary embodiment; Fig. 6 shows a schematic detailed view of a compacting apparatus according to an exemplary embodiment; Fig. 7 shows a schematic detailed view of a dryer section portion according to an exemplary embodiment; Fig. 8 shows a schematic detailed view of a dryer section portion according to an exemplary embodiment; Fig. 9 shows a schematic detailed view of a dryer section portion according to an exemplary embodiment; Fig. 10 shows a schematic detailed view of an embossing station according to an exemplary embodiment of the invention; Fig. 11a shows a schematic side view of an embossed kraft paper; and Fig. 11b shows a schematic top view of the kraft paper shown in Fig. 11a. Unless otherwise specified, the following features are shown in the figures: Machine flow direction 1, wire section 2, headbox 3, shaking apparatus 4, press section 5, drying section 6, reeling station 7, dewatering wire 8, outer side 9, breast roll 10, first dewatering portion 11, inner side 12, second dewatering portion 13, first dewatering apparatus 14, second dewatering apparatus 15, former strip 16, suction zone 17, topformer dewatering wire 18, pre-dryer section 19, after-dryer section 20, compacting apparatus 21, calendering apparatus 22, fibrous web travel direction 23, suction box 24, paper reel 25, belt 26, belt drive 27, counter roll 28, counter roll drive 29, compaction nip 30, belt drive roll 31, tension roll 32, nip bar 33, wrap roll 34, wrap angle 35, release agent dispensing assembly, in particular silicone spray apparatus, 36, scraper 37, coolant nozzle 38, adjusting device 39, compensating path 40, compensating roll 41, guide roller 42, paper web wrap angle 43, pivot bearing 44, web cutting device 45, bypass assembly 46, bypass path 47, diverter 48, rope guide 49, bypass rope guide 51, compaction rope guide 52, first rope 53, second rope 54, third rope 55, fourth rope 56, first rope drive 57, second rope drive 58, deflection roller 59, adjusting roller 60, release agent nozzles 61, nozzle valve 62, nozzle beam 63, pressure source 64, diluent source 65, release agent source 66, mixing vessel 67, pressure vessel 68, distribution line 69, contact drying region 70, impingement drying region 71, drying cylinder 72, drying wire 73, pressing region 74, guide roll 75, tension roll 76, impingement drying apparatus 77, drying hood 78, cylindrical roll 79, further drying cylinder 80, fibrous web 81, displacement direction 82, impingement drying portion 83, embossing station 84, embossing roll 85, counter roll 86, embossing nip 87, embossing profile 88, embossment 89, cleaning brush 90, axis of rotation 91 (of the embossing roll 85), axis of rotation 92 (of the cleaning brush 90), embossing depth 93, application apparatus 94, planar portion 95, adjusting apparatus 96, embossment rows 97, cross direction 98, machine direction 99, embossment columns 100. Fig. 1a-c show a schematic overall view of a kraft paper production system according to an exemplary embodiment. The system comprises, in the machine direction 1, a headbox 3, a wire section 2, a press section 5, a pre-dryer section 19, a compacting apparatus 21, an after-dryer section 20, a calendering apparatus 22, and a reeling station 7. The calendering apparatus 22 may alternatively be configured as an embossing apparatus. The headbox 3 serves in a known manner to apply a fibrous suspension to the continuously circulating dewatering wire 8 of the wire section 2, as a result of which a fibrous web is formed. Throughout the system, the fibrous web is continuously dewatered / dried and passes successively through the above-mentioned system components. Finally, paper reels 25 are formed, which can be transported away and / or fed to further processing steps. The functionality of the individual system components is sufficiently known to a person skilled in the field of paper production and will not be explained in detail at this point. The system shown here preferably comprises a sensor for detecting a malfunction. In particular, such a sensor can detect a web break or a partial web break of the fibrous web. This sensor can generate a web break signal that activates the emergency operation mode, for example. The system preferably comprises a web cutting device 45. The web cutting device 45 allows for the fibrous web to be stripped, i.e. completely separated. This web cutting device 45 is activated, for example, if the web brake signal detects at least partial web break. In this case, an emergency operation mode can be activated. Depending on the malfunction, the following fibrous web can then be guided further through the system, in particular also further through the compacting apparatus 21, or the following fibrous web is diverted. In emergency operation mode, the compacting apparatus 21 is preferably operated in emergency operation mode. For example, the production speed of the system in this exemplary embodiment is about 1100 m / min. The produced paper web has a paper width of about 6.4 m. The compacting apparatus 21 comprises a belt 26. The belt 26 is a continuous band that is guided around multiple deflection rollers 59 and deflection rolls. In particular, the compacting apparatus 21 preferably comprises a belt drive roll 31 with a belt drive 27. The belt drive 27 drives the belt drive roll 31, the belt drive roll 31 preferably being in direct operative contact with the belt 26 so as to drive it in a continuous loop. The compacting apparatus 21 comprises a nip bar 33. The nip bar 33 is configured to be displaceable and can press the belt 26 towards and against a counter roll 28, as done in the present position. In the present embodiment, the counter roll 28 has a counter roll drive 29. Preferably, the counter roll drive 29 and belt drive 27 are drives that are controllable independently of one another and are preferably rotary drives. A compaction nip 30 is formed between belt 26 and counter roll 28. The compaction nip 30 is bounded on one side by the counter roll 28 and on the other side by the belt 26. The position of the compacting apparatus 21 shown substantially corresponds to the compacting mode in which the fibrous web is compacted. In the compacting mode, the fibrous web passes through the compaction nip 30 at production speed, and is conveyed therein between the moving belt 26 and the counter roll 28, and is thereby compacted in the machine flow direction 1. In the compacting mode, the belt 26 is driven by the belt drive 27. In the compacting mode, the counter roll 28 is driven by the counter roll drive 29, whereby the belt 26 and the counter roll 28 are each driven by a respective drive in the compacting mode. In the compacting mode, the circulation speed of the belt 26 and the circulation speed of the counter roll 28 preferably exceed 400 m / min, in particular exceed 600 m / min, and substantially equal the production speed. The thickness of belt 26 is reduced in the region of the compaction nip 30, as the nip bar 33 presses the belt 26 towards the counter roll 28 in that region, thereby pressing the belt from the nip bar 33 towards the counter roll 28. Downstream of the nip bar 33 in the web travel direction 23, the thickness of the elastically deformed belt 26 returns to its original thickness. A transverse contraction effect causes the belt 26 to contract by a certain amount along its travelling direction, thereby reducing the local velocity of the belt 26. As the fibrous web rests against the belt in this area, the fibrous web is compacted by this effect. The web is compacted in the machine flow direction 1. This procedure can be adjusted, preferably by adjusting the wrap roll 34, so that the contact time of the fibrous web between the belt 26 and the counter roll 28 can be adjusted to an angle of approximately 15°–90°, preferably between 20°–45°. By shifting the nip bar 33, the pressure or force acting on the rubber belt 26 upstream of the nip bar 33 toward the counter-roll 28 can be reduced or completely eliminated. By relieving the pressure caused by the nip bar 33, the compacting apparatus 21 can be switched into a free-running mode. In both operating modes - that is, in compacting mode and in free-running mode - the two drives may preferably drive the belt 26 and counter roll 28. Preferably, the belt and counter roll are driven at a speed that is substantially equal to the production speed. In the present embodiment, the compacting apparatus 21 comprises a tension roll 32. Said tension roll 32 is used to maintain the tension of the belt 26. Tension roller 32 is preferably designed to be displaceable and maintains the tension of the belt 26, when, for example, the belt extends due to wear. Further, the tension roller 32 may optionally also keep the belt 26 tensioned when the nip bar 33 is retracted. In the present embodiment, the compacting apparatus 21 comprises a wrap roll 34. Preferably, the wrap roll 34 is arranged such that the belt 26 runs along the outer contour of the counter roll 28, at least in one portion. The position of the wrap roll 34 thus determines the wrap angle of the belt 26 around the counter roll 28. The larger the wrap angle, the longer the contact length of the belt 26, and thus also of the fibrous web, on the counter roll 28. In compacting mode, the belt 26 is therefore guided around the counter roll 28 by the wrap roll 34 and the nip bar 33 over a wrap angle. In the present embodiment, the wrap roll 34 is configured to be displaceable, thereby enabling adjustment and tuning of the wrap angle. The system comprises a bypass assembly 46 in the area of the compacting apparatus 21 for conveying the fibrous web along a bypass path 47, bypassing the compacting apparatus 21. The bypass assembly 46 is preferably provided exclusively in the area of the compacting apparatus 21 and is designed for conveying the fibrous web by bypassing the compacting apparatus 21 but not by bypassing other system components. In particular, the compacting apparatus 21 is arranged in the machine flow direction 1 between a system component upstream of the compacting apparatus 21 and a system component downstream of the compacting apparatus 21. The bypass path 47 of the bypass assembly 46 extends from the exit of the upstream system component to the entrance of the downstream system component. The dryer section 6 comprises a pre-dryer section 19 and an after-dryer section 20 arranged downstream of the pre-dryer section 19 in the machine flow direction 1. The compacting apparatus 21 is preferably arranged between the pre-dryer section 19 and the after-dryer section 20 in the machine flow direction 1. The bypass assembly 46 may convey the fibrous web from the pre-dryer section 19 to the after-dryer section 20, bypassing the compacting apparatus 21. The bypass assembly 46 comprises an adjustable diverter 48 for selectively conveying the fibrous web or a strip of the fibrous web through the compacting apparatus 21 or through the bypass path 47. For example, the diverter 48 is configured as an adjustable suction belt or vacuum belt. Further, a rope guide 49 is provided for selectively guiding a strip of the fibrous web through the bypass assembly 46 or through the compacting apparatus 21. Preferably, the system comprises a sensor for detecting a malfunction. In particular, such a sensor can detect a web break or a partial web break of the fibrous web. This sensor can generate a web break signal that activates the emergency operation mode, for example. The system preferably comprises a web cutting device 45. The web cutting device 45 allows for the fibrous web to be stripped, i.e. completely separated. This web cutting device 45 is activated, for example, if the web brake signal detects at least partial web break. In this case, an emergency operation mode can be activated. Depending on the malfunction, the following fibrous web can then be guided further through the system, in particular also further through the compacting apparatus 21, or the following fibrous web is diverted. In emergency operation mode, the compacting apparatus 21 is preferably operated in emergency operation mode. Preferably, the system comprises a bypass assembly 46 in the area of the compacting apparatus 21 for conveying the fibrous web along a bypass path 47, bypassing the compacting apparatus 21. The bypass assembly 46 is preferably provided exclusively in the area of the compacting apparatus 21 and is designed for conveying the fibrous web by bypassing the compacting apparatus 21 but not by bypassing other system components. In particular, the compacting apparatus 21 is arranged in the machine flow direction 1 between a system component upstream of the compacting apparatus 21 and a system component downstream of the compacting apparatus 21. The bypass path 47 of the bypass assembly 46 extends from the exit of the upstream system component to the entrance of the downstream system component. The dryer section 6 comprises a pre-dryer section 19 and an after-dryer section 20 arranged downstream of the pre-dryer section 19 in the machine flow direction 1. The compacting apparatus 21 is preferably arranged between the pre-dryer section 19 and the after-dryer section 20 in the machine flow direction 1. The bypass assembly 46 may convey the fibrous web from the pre-dryer section 19 to the after-dryer section 20, bypassing the compacting apparatus 21. The bypass assembly 46 comprises an adjustable diverter 48 for selectively conveying the fibrous web or a strip of the fibrous web through the compacting apparatus 21 or through the bypass path 47. For example, the diverter 48 is configured as an adjustable suction belt or vacuum belt. Further, a rope guide 49 is provided for selectively guiding a strip of the fibrous web through the bypass assembly 46 or through the compacting apparatus 21. In Fig. 2 an enlarged view of a wire section is shown in detail according to an exemplary embodiment. The wire section according to this exemplary embodiment can be used in the system shown in Fig. 1 to produce a kraft paper. The fibrous suspension from the headbox 3 is applied to the outer side 9 of the dewatering wire 8 of the wire section 2, forming a fibrous web. The machine direction 1 of the system or the produced paper corresponds to the fibrous web travel direction 23. The dewatering wire 8 is guided continuously circulating around an arrangement of multiple rolls, wherein the fibrous suspension is applied in the area of the breast roll 10 of wire section 2. The dewatering wire 8 has a width of about 7.2 m. In this exemplary embodiment, the fibrous material is softwood pulp with an average fibre length of about 2.2 mm. Thus, these are so-called long fibres. The pulp is unbleached and has a kappa number of about 65. The stock consistency of the fibrous suspension when applied to the dewatering wire 8 is about 0.22%. The speed of the fibrous suspension leaving the headbox 3 is about 2% higher than the travelling speed of the dewatering wire 8. The dewatering wire 8 has a speed of about 1100 m / min. The high-frequency shaking apparatus 4 is designed to cause the breast roll 10 and thus also the dewatering wire 8 to oscillate in the area of the breast roll 10. This reduces the longitudinal alignment of the fibres in machine direction 1, which helps to improve the properties of the paper produced in the cross direction, i.e. transverse to machine direction 1. In this exemplary embodiment, the oscillation has a frequency of about 7 Hz and an amplitude of about 35 mm. Viewed in the travel direction 23, the fibrous band enters a first dewatering area 11 after the suspension has been applied to the dewatering wire 8. Here, the fibrous band is dewatered downwards, i.e. from the inner side 12 of the dewatering wire 8. A first dewatering apparatus 14 is arranged in the first dewatering portion 11, which first enables a mainly gravity-driven dewatering of the fibrous web, followed by a downwardly directed suction treatment. The suction treatment is performed by means of suction boxes 24. In the first dewatering portion 11, the fibrous web is only dewatered downwards. The first dewatering portion 11 is followed by a second dewatering portion 13, in which the fibrous web is de-watered upwards, i.e. in the direction of the upper side of the fibrous web. For this purpose, a second dewatering apparatus 15 is provided in the area of the outer side 9 of the dewatering wire 8, which is configured as a suction dewatering apparatus with four successive suction zones 17. A continuously circulating top former dewatering wire 18, which moves at the same speed as the main dewatering wire 8, is guided between the second dewatering apparatus 15 and the fibrous band. Further, four former strips 16 arranged successively in the travel direction 23 of the dewatering wire 8 are provided, which exert a pressure on the inner side 12 of the dewatering wire 8 and thus press the fibrous web in the direction of the top former dewatering wire 18 or the second dewatering apparatus 15. The contact pressure caused by the former strips can be adjusted between 5 and 25 kPa. The fibrous web then leaves the wire section and is further processed in the other system components, as shown in Fig. 1, in order to be further dewatered or dried and to ultimately form a paper web. As a result of the treatment in the wire section, the resulting kraft paper has a plurality of advantageous properties, which relate in particular to the extensibility in the cross direction and the formation of the paper. The kraft paper produced according to the described exemplary embodiment has the following the exemplary property profile indicated in table 1. Table 1: [Image disponible dans le document PDF, Image available in the PDF document] *measured at a distance of ±5 cm from the geometric centre of the paper web in its cross direction **measured at a maximum distance of 10 cm from the edge of the paper web in its cross direction Fig. 3 shows a schematic view of a compacting apparatus 21. The compacting apparatus 21 comprises a belt 26. The belt 26 is a continuous band that runs around multiple deflection rollers and deflection rolls. In particular, the compacting apparatus 21 comprises a belt drive roll 31 with a belt drive 27. The belt drive 27 drives the belt drive roll 31, the belt drive roll 31 preferably being in direct operative contact with the belt 26 so as to drive it in a continuous loop. The compacting apparatus 21 comprises a nip bar 33. The nip bar 33 is configured to be displaceable and can press the belt 26 towards and against a counter roll 28, as done in the present position. In the present embodiment, the counter roll 28 has a counter roll drive 29. Preferably, the counter roll drive 29 and belt drive 27 are drives that are controllable independently of one another and are preferably rotary drives. A compaction nip 30 is formed between belt 26 and counter roll 28. The compaction nip 30 is bounded on one side by the counter roll 28 and on the other side by the belt 26. The position of the compacting apparatus 21 shown substantially corresponds to the compacting mode in which the fibrous web is compacted. In the compacting mode, the fibrous web passes through the compaction nip 30 at production speed, and is conveyed therein between the moving belt 26 and the counter roll 28, and is thereby compacted in the machine flow direction 1. In the compacting mode, the belt 26 is driven by the belt drive 27. In the compacting mode, the counter roll 28 is driven by the counter roll drive 29, whereby the belt 26 and the counter roll 28 are each driven by a respective drive in the compacting mode. In the compacting mode, the circulation speed of the belt 26 and the circulation speed of the counter roll 28 preferably exceed 400 m / min, in particular exceed 600 m / min, and substantially equal the production speed. The belt drive roll 31 transmits the drive torque from belt drive 27 to belt 26. Rolls 31, 34, and 39 preferably function as belt guiding rolls. The thickness of belt 26 is reduced in the region of the compaction nip 30, as the nip bar 33 presses the belt 26 towards the counter roll 28 in that area, thereby pressing the belt from the nip bar 33 towards the counter roll 28. Downstream of the nip bar 33 in the web travel direction 23, the thickness of the elastically deformed belt 26 returns to its original thickness. A transverse contraction effect causes the belt 26 to contract by a certain amount along its travelling direction, thereby reducing the local velocity of the belt 26. As the fibrous web rests against the belt in this area, the fibrous web is compacted by this effect. The web is compacted in the machine flow direction 1. This procedure can be adjusted, preferably by adjusting the wrap roll 34, so that the contact time of the fibrous web between the rubber belt 26 and the counter roll 28 can be adjusted to an angle of approximately 15°–90°, preferably between 20°–45°. By shifting the nip bar 33 as shown by the dashed lines, the pressure or force acting on the rubber belt 26 upstream of the nip bar 33 towards the counter-roll 28 can be reduced or completely eliminated. By relieving the pressure caused by the nip bar 33, the compacting apparatus 21 can be switched into a free-running mode. In both operating modes - that is, in compacting mode and in free-running mode - the two drives may preferably drive the belt 26 and counter roll 28. Preferably, the belt and counter roll are driven at a speed that is substantially equal to the production speed. In the present embodiment, the compacting apparatus 21 comprises a tension roll 32. Said tension roll 32 is used to maintain the tension of the belt 26. The tension roller 32 is preferably designed to be displaceable and maintains the tension of the belt 26, when, for example, the belt extends due to wear. Further, tension roller 32 may optionally also keep the belt 26 tensioned when the nip bar 33 is retracted. In the present embodiment, the compacting apparatus 21 comprises a wrap roll 34. Preferably, the wrap roll 34 is arranged such that the belt 26 runs along the outer contour of the counter roll 28, at least in one portion. The position of the wrap roll 34 thus determines the wrap angle 35 of the belt 26 around the counter roll 28. The larger the wrap angle 35, the longer the contact length of the belt 26 - and thus also of the fibrous web - on the counter roll 28. In compacting mode, the belt 26 is therefore guided around the counter roll 28 by the wrap roll 34 and the nip bar 33 over a wrap angle 35. In the present embodiment, the wrap roll 34 is configured to be displaceable, thereby enabling setting and tuning of the wrap angle 35. This is achieved by an adjusting device 39, shown schematically, which can be used to change and set the wrap angle 35 by displacing the wrap roll 34. In the present embodiment, the adjusting device 39 comprises guides or guide arms arranged on both sides of the wrap roll 34 and a drive. By actuating the drive, the pivot bearings for mounting the wrap roll 34 can be deliberately displaced. Preferably, the wrap angle 35 can be adjusted by at least 10°, in particular by at least 20°, in particular by at least 25°, in particular by at least 40° or in particular by at least 60°. The displacement is preferably performed with an electromechanical adjusting device, although the movement may also be performed hydraulically. The movement of the displacement is, for example, linear by means of a spindle lifting element, wherein the wrap roll 34 is mounted via a pivot point so that the wrap angle 35 of the belt 26 on the counter rolls 28 can be set (min. / max. movement). The maximum stroke of the adjusting device substantially corresponds to the maximum wrap of the belt 26 on the counter roll 28. Optionally, there is no contact between the belt and the counter roll 28 if the adjusting device is fully retracted. The belt 26 can be operated in a free-running mode. All movement sequences should or must be synchronised. The movement sequences are, in particular, the adjustment of the belt 26 on the counter roll 28 and the tensioning of the belt 26 to compensate for the change in length. When the pressure bar or the nip bar 33 is relieved, the movements should also be synchronised with the belt movement, in particular within a period of less than 2 seconds, preferably less than one second. In all embodiments, all three movements are preferably synchronised: Adjustment of the wrap roll 34, tensioning of the belt 26 with the tension roll 32 and release of the pressure bar 33. This ensures that the belt 26 can continue to be operated at full operating speed. Optionally, the wrap angle 35 can be adjusted between 15° and 90°, preferably between 20° and 60°. In the present design, the displacement of the wrap roll 34 can be compensated for with a substantially constant belt length by moving a compensating roll 41 that is displaceable along a compensating path 40. If the wrap roll 34 is displaced to change the wrap angle 35, this change in the position of the wrap roll 34 must be compensated for by changing the bearings of the compensating roll 41. Finally, the belt 26 has a substantially constant length and should only stretch slightly along its length. The compensating roll 41 may be moved along the compensating path 40, for example by more than 10 cm, in particular by more than 45 cm and preferably between 5 cm and 55 cm. In the present embodiment, the compensating roll 41 simultaneously acts as a tension roll 32 for tensioning the belt 26. In particular, the compensating roll 41 is the only tension roll 32 for tensioning the belt 26. The fibrous web is wrapped around the counter roll 28 at a paper web wrap angle 43. After leaving the counter roll 28, the fibrous web is guided or deflected around a guide roller 42. The paper web wrap angle 43 of the fibrous web around the counter roll 28 can be changed by changing the position of the guide roller 42. Alternatively, a non-adjustable wrap roll 34 may be provided. The compacting apparatus 21 preferably comprises a release agent dispensing assembly, in particular a silicone spray apparatus 36, and preferably also a scraper 37. The silicone spray apparatus 36 applies a release agent to the surface of the counter roll 28. This reduces the tendency of the fibrous web to stick to counter roll 28. Scraper 37 can be used to scrape off and collect excess release agent. In particular, multiple silicone spray nozzles 36 may be provided to distribute the release agent across the entire width of counter roller 28. The release agent dispensing assembly 36 comprises several release agent nozzles 61, although only one release agent nozzle 61 is visible in Fig. 2. The release agent nozzles 61 are controlled via nozzle valves 62 and dispense the release agent onto the counter roll 28. In order to be able to apply the release agent along the entire width of the counter roll 28, the nozzle valves 62 are arranged next to each other along a nozzle beam 63. Further, a coolant nozzle 38 for applying coolant to the surface of the compacting belt 26 may be provided. In particular, multiple spray nozzles 38 are provided to distribute the release agent across the entire width of belt 26. Fig. 4 shows a compacting apparatus 21, in particular the compacting apparatus 21 of Fig. 3, in emergency operation mode and in particular in a position in which a gap is formed between the belt 26 and the counter roll 28. During the emergency operation mode, the nip bar 33 is rapidly retracted starting from the compaction mode, as shown for example in dashed lines in Fig. 3. The nip bar 33, which presses the belt 26 towards the counter roll 28 in the compacting mode, enables the belt 26 to be lifted off the counter roll 28 by pulling it back. In emergency operation mode, the nip bar 33 can for example be retracted pneumatically or hydraulically. Preferably, a bellows cylinder may be provided as an actuator, acting for example via a swivelling lever and / or via a guide on the nip bar 33. Additionally, if required, the wrap roll 34 can also be displaced in order to enable or accelerate the lifting of the belt 26 from the counter roll 28. The adjustment may be performed via the schematically illustrated adjusting device 39, with which the wrap angle 35 can also be changed and set by displacing the wrap roll 34. In the illustration in Fig. 3, the wrap roll 34 is displaced compared to the operating mode in Fig. 2. In an alternative embodiment, however, the gap between the belt 26 and the counter roll 28 can also be achieved solely by displacing the nip bar 33. This is particularly advantageous in compacting apparatuses which have a rigid wrap roll 34 with a non-displaceable axis. In order to achieve rapid and targeted lifting of the belt 26 from the counter roll 28, the tension roll 32 of the compacting apparatus is preferably also displaced in emergency operation mode. The tension roll 32 is the roll holding the belt 26 in a desired tension in compacting mode. In the case of a displaceable wrap roll 34, this tension roll 32 may simultaneously also serve as a compensating roll 41. The tension roll 32 is also preferably displaced quickly in emergency operation mode, so that the belt 26 is lifted from the counter roll 28 by the interaction of the retraction of the nip bar 33 and the displacement of the tension roll 32. If there is a displaceable wrap roll 34, this may also be done in conjunction with the displacement of the wrap roll 34. In the position shown in Fig. 3, the belt 26 may optionally be further driven in a circulating manner. A belt drive 27 and a belt drive roll 31 are provided for this purpose. The belt 26 can thus be driven in a circulating manner even though a gap is provided between the counter roll 28 and the belt 26 and even though the counter roll 28 can no longer drive the belt 26. Preferably, the counter roll 28 is also driven in a circulating manner by a counter roll drive 29. The belt 26 and the counter roll 28 thus preferably each have a drive, wherein the two drives may drive the belt 26 or the counter roll 28 independently of one another. Thus, the circulation speed of the belt 26 and the circulation speed of the counter roll 28 can be maintained or set, even if a gap is provided between the belt 26 and the counter roll 28. In particular, the circulation speeds of the belt 26 and the counter roll 28 may substantially correspond to the production speed. The production speed preferably exceeds 400 m / min and in particular exceeds 600 m / min. If the compacting apparatus 21 is to be put back into the compacting mode, the belt 26 is pressed back against the counter roll 28 by the nip bar 33. During the transition from emergency operation mode to compacting mode, the separately driven elements counter roll 28 and belt 26 prevent detrimental slippage between these elements, which further reduces wear. The emergency operation mode is preferably triggered by a signal. The signal may be a signal triggered by a person or another signal, such as a web break signal from a sensor for detecting a malfunction. For example, the system comprises a sensor that can detect a web break or partial web break in the fibrous web. The sensor is preferably located in front of the compacting apparatus 21 in the machine flow direction 1. Fig. 5 shows a schematic side view of components of the system and in particular also of the bypass assembly 46 and the rope guide 49. The bypass assembly 46 allows the fibrous web produced on the system to be selectively guided through the compacting apparatus 21 or through the bypass assembly 46. In the bypass assembly 46, the fibrous web is guided along a bypass path 47 past the compacting apparatus 21. Preferably, the fibrous web runs through all parts of the system with the exception of the compacting apparatus 21. If, for example, the compacting apparatus 21 requires maintenance, the fibrous web cannot be conveyed through the compacting apparatus 21 for safety reasons, but usually also for technical reasons. In this case, the fibrous web is guided past the compacting apparatus 21 by the bypass assembly 46. While the compacting apparatus 21 is being maintained, the present structure can be used to produce paper that has not been longitudinally compressed by the compacting apparatus 21. This paper generally has different properties than a paper compacted in the compacting apparatus 21. However, the paper produced without the compacting apparatus 21 can still be used as a product. If the fibrous web is to be fed through the bypass assembly 46 instead of through the compacting apparatus 21, the process may be as follows: Preferably, the fibrous web is cut off by a web cutting device 45 (see Fig. 1b). Subsequently, not the entire fibrous web is guided over its entire width, but only a narrow strip of the fibrous web is guided towards the compacting apparatus 21 and bypass assembly 46. In all embodiments, the narrow strip may, for example, be about 10 cm to 25 cm wide. Next, a diverter 48 is actuated. The diverter 48 may, for example, be designed as a suction belt or vacuum belt and may be adjusted so that the course or direction of the strip of the fibrous web can be changed. The diverter 48 guides the strip into a rope guide 49. The rope guide 49 comprises a bypass rope guide 51, which can guide the strip along the bypass path 47. Additionally, the rope guide 49 comprises a compaction rope guide 52, which guides the strip into or through the compacting apparatus 21. The diverter 48 may now selectively insert the strip into the bypass rope guide 51 or the compaction rope guide 52. For example, the rope guide may be designed as follows: A first rope 53 and a second rope 54 run along the compaction rope guide 52, starting from the diverter 48. The first rope 53 and the second rope 54 run directly adjacent to each other in the direction of the compacting apparatus 21 and form the compaction rope guide 52 in this area. However, the first rope 53 and the second rope 54 do not run through the compaction nip 30 of the compacting apparatus 21, but rather past the side of the compacting apparatus 21. At the exit of the compaction nip 30, the strip is in turn conveyed by the compaction rope guide 52 in the direction of the downstream machine component. In this downstream area, the strip is guided by the first rope 53 and a fourth rope 56, which run directly adjacent to each other in that area. The bypass rope guide 51 comprises a third rope 55 and the fourth rope 56 in the area downstream of the diverter 48. The third rope 55 and the fourth rope 56 run directly adjacent to each other in this area and guide the strip along the bypass path 47 through the bypass assembly 46. In the present embodiment, in the area in which the strip is transferred to the components of the system downstream of the bypass assembly 46, the rope guide 49 is formed by the first rope 53 and the fourth rope 56. In all embodiments, it may be provided that the bypass rope guide 51 comprises a first rope pair, in particular the first rope 53 and the second rope 54. This first pair guides the strip of the fibrous web along the bypass path 47. In all embodiments, it may be provided that the compaction rope guide 52 comprises a second rope pair, in particular the third rope 55 and the fourth rope 56. This second pair guides the strip of the fibrous web through or into the compacting apparatus 21. In all embodiments, it may be provided that the rope guide 49 has a portion following the bypass rope guide 51 and following the compaction rope guide 52 running parallel thereto, in which the strip of the fibrous web is guided by a rope of the first rope pair and a rope of the second rope pair. In particular, in the present embodiment, the strip in this area is guided by the first rope 53 and the fourth rope 56. in all embodiments, the ropes 53, 54, 55, 56 are preferably all configured as endless ropes guided in a loop. In particular, one or more rope drives 57, 58 are provided for driving the ropes 53, 54, 55, 56. In the present embodiment, a first rope drive 57 and a second rope drive 58 are provided. In the present embodiment, the first rope drive 57 drives the second rope 54 and the third rope 55. In the present embodiment, the second rope drive 58 drives the first rope 53 and the fourth rope 56. In particular, it may be provided that a drive drives a rope of the first rope pair and a rope of the second rope pair. In particular, it may be provided that a further drive drives the second rope of the first rope pair and the second rope of the second rope pair. In the portion in which the bypass rope guide 51 and the compaction rope guide 52 are brought together, an adjusting roller 60 may be provided. As shown in enlarged detail, the adjusting roller 60, when actuated, shifts the position of at least one of the ropes 53, 54, 55, 56 in such a way that the strip of the fibrous web, depending on whether it comes from the bypass rope guide 51 or from the compaction rope guide 52, can be guided further along the rope guide 49 to the downstream system component. In the present embodiment, a deflection roller 59 is provided in this area. If the strip of the fibrous web is guided along the bypass rope guide 51, the third rope 55 is looped around the deflection roller 59 by the adjusting roller 60 in such a way that it is guided further between the first rope 53 and the fourth rope 56. If, on the other hand, the strip of the fibrous web comes out of the compaction rope guide 52, the adjusting roller 60 can displace a section of the third rope 55 in such a way that the strip can run unhindered from the compaction rope guide 52 into the further rope guide 49. In particular, a loop of the third rope 55 is pulled back by the adjusting roller 60. Fig. 6 shows a schematic structure of a possible configuration of a release agent dispensing assembly 36. The release agent dispensing assembly 36 comprises a pressure source 64, which is configured in particular as a compressed air source. In addition, the release agent dispensing assembly 36 comprises a diluent source 65, which is in particular a water supply line. Furthermore, the assembly comprises a release agent source 66, from which the release agent component, for example a silicone oil, is provided. As an alternative to the separate provision of individual components of the release agent, a premixed release agent or a release agent with the desired composition or viscosity may also be provided in a tank or from a source. The diluent and the release agent component can be mixed in a mixing vessel 67. Optionally, the mixing vessel 67 is provided with a circulation pump and / or a mixer so that the components of the release agent can be uniformly mixed. The assembly comprises a pressure vessel 68. The pressure vessel 68 contains the release agent, for example the mixture of water and silicone oil. The pressure source 64 is also connected to the pressure vessel 68 in order to overpressurise the contents of the pressure vessel 68. The nozzle beam 63 is connected to the pressure vessel 68. The nozzle beam 63 comprises a distribution line 69, which distributes the release agent evenly to the individual nozzle valves 62 or to the individual release agent nozzles 61. Only some of the release agent nozzles 61 and the assigned nozzle valves 62 of the nozzle beam 63 are shown in the schematic diagram in Fig. 3. The number of release agent nozzles 61 can be selected depending on the width of the counter roll 28 or the length of the nozzle beam 63. The release agent nozzles 61 are intermittently operated by the nozzle valves 62. In particular, the release agent is dispensed discontinuously and pulsed by the release agent nozzles 61. By selecting the frequency of the pulsed dispensing and the opening duration of the individual pulses, an exact dosage of the release agent can be set. Additionally, the contamination of the release agent nozzles 61 can be reduced by the special, pulsed dispensing. Optionally, the amount of release agent that is effectively used can be reduced by simultaneously reducing the contamination of the release agent nozzles 61. The pulse frequency of the nozzle valves 62 is, for example, 15 Hz to 25 Hz, preferably about 20 Hz. In particular, the pulse frequency of the nozzle valves 62 can be set. The opening duration of the individual pulses may, for example, be between 400 µs and 1200 µs, preferably between 500 µs and 1000 µs. The opening duration of the nozzle valves 62 per pulse can also preferably be selected and set. In all embodiments, the release agent is preferably dispensed constantly and continuously onto the counter roll 28 during the compacting mode, although the dispensing itself is pulsed. However, it is important that the counter roll 28 is always equipped with the desired amount of release agent during the compacting mode. In particular, dosing may be performed by a controller and pulse width modulation provided by the controller. The nozzle pressure, i.e. the pressure at which the release agent is dispensed or the pressure prevailing in the distribution line 29, is about 1 bar to 3 bar. For example, a volume flow of 50 ml / min to 600 ml / min, in particular between 80 ml / min and 500 ml / min, may be dispensed per release agent nozzle 61. With a 6 m long nozzle beam 63, for example, the total volume flow of the release agent may be between 1 I / min and 6 I / min. Since this value depends on the width of the system or the width of the counter roll 28, the volume flow of the release agent can be about 0.15 l / min to 1 l / min per metre of length of the nozzle beam 63. The release agent preferably comprises silicone oil and water. In all embodiments, the release agent may comprise, for example, between 5% and 20% silicone oil. For example, the release agent may comprise between 95% and 80% of a diluent, in particular water. The release agent preferably has a viscosity according to ISO 3219 of about 150 mPAs to 250 mPAs. Further, a coolant nozzle 38 for applying coolant to the surface of the compacting belt 26 may be provided. In particular, multiple spray nozzles 38 are provided to distribute the release agent across the entire width of belt 26. In Fig. 7 is an enlarged view of a dryer section portion shown in detail according to an exemplary embodiment. The dryer section portion according to this exemplary embodiment can be used in the system shown in Fig. 1 to produce a kraft paper. The dryer section portion shown herein comprises a contact drying region 70, which is followed by an impingement drying region 71. There are three steam-heated drying cylinders 72 in the contact drying region 70, over which the incoming fibrous web 81 is guided. The drying cylinders 72 are arranged in immediate succession. A separate drive (not shown) may be provided for each drying cylinder 72. In addition, each drying cylinder 72 is assigned to a dedicated drying wire 73, which is designed as a strap that presses the fibrous web 81 against the outer circumference of the respective drying cylinder 72 in a pressing region 74. Draw sections are provided between successive pressing regions 74, in which the fibrous web 81 is subjected to a free draw. Each drying wire 73 is guided in an endlessly circulating loop over a series of guide rolls 75. In this case, one respective guide roll 75 is designed to be movable along a displacement direction 82 and thus serves as a tension roll 76 to adjust the tension of the drying wire 73 and thus the pressure with which the fibrous web 81 is pressed against the outer circumference of the drying cylinder 72. When viewed in the machine flow direction, the contact drying region 70 is followed by the impingement drying region 71. Fig. 7 only shows the start of the impingement drying region 71. This region begins with an impingement drying group comprising two impingement drying apparatuses 77. Each impingement drying apparatus 77 in turn comprises a drying hood 78 and a cylindrical roll 79. The fibrous web 81, which passes through an impingement drying apparatus 77, is deflected by the cylindrical roll 79 and subjected to drying by hot air blown onto it by the drying hood 78. A further drying cylinder 80 may be provided between the two impingement drying apparatuses 77, which has a drive but no drying wire. This further drying cylinder 80 is no part of the inventive contact drying region 70, as it is arranged downstream of the first impingement drying apparatus 77 as viewed in the machine flow direction 1. The dryer section portion according to this exemplary embodiment comprises two further impingement drying groups, as described above. Fig. 1b and 1c show a complete inventive dryer section portion, also used as after-dryer section 20. Here it can be seen that the fibrous web is guided directly from the compacting apparatus 21 into the after-dryer section 20, which begins with a sequence of three drying cylinders 72 with separate drying wires 73. These three drying cylinders 72 form the contact drying region 70 of the inventive after-dryer section 20. The contact drying region 70 is followed by the impingement drying region 71, which begins with a group of two impingement drying apparatuses 77, which are separated by a further drying cylinder 80. Three such groups are provided, wherein a further drying cylinder 80 is provided between each two groups, which is equipped with a further drying wire. Further drying cylinders 80 are not part of the contact drying region 70. In terms of detailed structure and function, the dryer section portion shown in Fig. 1 is similar to that shown in Fig. 7. In one exemplary embodiment of a method, the fibrous web leaving the compacting apparatus 21 has a dry content of about 65 % and is introduced into an after-dryer section 20 designed according to the invention. The rotational speed of the first drying cylinder 72 of the contact drying region 70 is lower than the speed of the incoming fibrous web. The rotational speed of the second and third drying cylinder 72 in the machine flow direction is in each case higher than the speed of the fibrous web in front of the respective drying cylinder 72, resulting in a tension build- up. The speed differences are adjustable as required, but this generally achieves a gentle tension build-up up to the impingement drying region 71 and an improvement in the cross shrinkage profile of the fibrous web. The adjustment of the speed differences is facilitated in particular by the separate drives of the different drying cylinders 72. In order to enable the fibrous web to run wrinkle free, the rotational speed of the first cylindrical roll 79 of the impingement drying region 71 is greater than the travelling speed of the fibrous web leaving the contact drying region 70. The width of the drying wires 73 is about 2 m smaller than the width of the fibrous web, wherein both edge regions of the fibrous web, each with a width of about 1 m, are not pressed against the surface of the drying rolls 72 by the drying wires 73. This further improves the cross profile of the produced paper web. The resulting kraft paper has a plurality of favourable properties. The kraft paper produced according to the described exemplary embodiment may have the exemplary property profile shown in Table 1 above. In Fig. 8 is an enlarged view of a dryer section portion according to an exemplary embodiment shown in detail. The dryer section portion according to this exemplary embodiment can be used in the system shown in Fig. 1 to produce a kraft paper. The dryer section portion shown herein comprises a contact drying region 70, which is followed by an impingement drying region 71. In Fig. 8, only the last part of the contact drying region 70 is shown. The impingement drying region 71 comprises three impingement drying portions 83, also referred to as impingement drying groups, each of which comprises two impingement drying apparatuses 77. Each impingement drying apparatus 77 in turn comprises a drying hood 78 and a cylindrical roll 79 assigned to this drying hood 78. The fibrous web 81, which passes through an impingement drying apparatus 77, is deflected by the cylindrical roll 79 and subjected to drying by hot air blown onto it by the drying hood 78. Further, the cylindrical roll 79 is heated so that the moisture escaping from the fibrous web 81 creates a gas cushion, as a result of which the fibrous web 81 is, at least in sections, not in direct contact with the outer surface of the cylindrical rolls 79. A further drying cylinder 80 is provided between the two impingement drying apparatuses 77, which has a drive but no drying wire. The further drying cylinder 80 is also heated. The start of each impingement drying portion 83 is defined by the point at which the fibrous web 81 leaves the pressing region 74, which is directly above or upstream of the impingement drying portion 83 as viewed in the machine flow direction 1. The end of each impingement drying portion 83 is in turn defined by the point at which the fibrous web 81 enters the pressing region 74, which is directly below or downstream the impingement drying portion 83 as viewed in the machine flow direction 1. The free shrinkage length is now the length that the fibrous web 81 travels between its exit from the pressing region 74 arranged upstream (i.e. before) in the machine flow direction 1 and its entry into the pressing region 74 arranged downstream (i.e. after) in the machine flow direction 1. In other words: The free shrinkage length is the length along which the fibrous web 81 travels in the machine flow direction 1 between two drying cylinders 72 with drying wires 73. The fibrous web is given the opportunity to shrink along the free shrinkage length. In the present exemplary embodiment, the free shrinkage length is about 17.5 m. Fig. 1b and 1c show a complete inventive dryer section portion, also used as after-dryer section 20. Here it can be seen that the fibrous web is guided directly from the compacting apparatus 21 into the after-dryer section 20, which begins with a sequence of three drying cylinders 72 with separate drying wires 73. These three drying cylinders 72 form the contact drying region 70 of the inventive after-dryer section 20. In terms of detailed structure and function, the dryer section portion shown in Fig. 1 is similar to that shown in Fig. 8. In one exemplary embodiment of an inventive method, the fibrous web leaving the compacting apparatus 21 has a dry content of about 65% and is introduced into an after- dryer section 20 designed according to the invention. In the impingement drying apparatuses 77, the cylindrical rolls 79 are heated to a temperature of about 110-160 °C, so that the fibrous web 81 is also heated and the moisture escaping from the fibrous web 81 generates a steam cushion that is formed between the fibrous web 81 and the outer surface of the cylindrical rolls 79. This enables free shrinkage as the fibrous web 81 dries. The resulting kraft paper has a plurality of favourable properties. The kraft paper produced according to the described exemplary embodiment may have the exemplary property profile shown in Table 1 above. Fig. 9 shows an enlarged view of a dryer section portion according to a further exemplary embodiment in detail. The dryer section portion according to this exemplary embodiment may also be used in the system shown in Fig. 1 to produce a kraft paper. In contrast to the exemplary embodiment shown in Fig. 8, the further drying cylinders 80 are also equipped with a drying hood 78, functioning the same as the drying hoods 78 assigned to the cylindrical rolls 79. Consequently, in the exemplary embodiment shown in Fig. 9, each impingement drying portion 83 has three impingement drying apparatuses 77, which in turn each comprise a cylindrical roll 79 or a further drying cylinder 80 and a drying hood. The remaining elements of the exemplary embodiment shown in Fig. 9 are identical to those of the exemplary embodiment shown in Fig. 8, so that reference is made to the relevant description. In one embodiment, the calendering station 22 included in the system according to Fig. 1 may be replaced by an embossing station 84. For example, this may be an embossing station 84 as shown schematically in Fig. 10. The embossing station 84 according to this exemplary embodiment comprises an embossing roll 85 and a counter roll 86, wherein an embossing nip 87 is located between the embossing roll 85 and the counter roll 86. The fibrous web emerging from the dryer section is guided through this embossing nip 87. An embossing structure 88 is provided on the surface of the embossing roll 85, which substantially corresponds to the embossing profile to be formed on the fibrous web. The surface of the counter roll 86 is smooth, but is equipped with a resilient material. In this exemplary embodiment, the resilient material has a Pusey & Jones hardness of about 30. The embossing station 84 comprises an adjusting apparatus 96 via which the position of the counter roller 86 can be adjusted and thus the rolling pressure in the embossing nip 87 can be adapted. The fibrous web emerging from the embossing nip 87 has the final embossing profile. No further active drying step is required and the fibrous web can be rolled up right away. Further, a cleaning assembly is provided in the embossing station 84, which comprises a cleaning brush 90 and an application apparatus 94. The cleaning brush 90 is configured as a rotating brush with a rotary drive. The width of the cleaning brush 90 is smaller than the width of the embossing roll 85. In order to be able to cover the entire width of the embossing roll 85, a drive is also provided for moving the cleaning brush 90 back and forth along the axis of rotation 91 of the embossing roll 85. The axis of rotation 91 of the embossing roll 85 extends substantially parallel to the axis of rotation 92 of the cleaning brush. The application apparatus 94 is configured as a spraying device which can spray a water- air mixture as a cleaning agent onto the surface of the embossing roll 85. This improves the cleaning effect of the cleaning brush 90. The embossing structure resulting from such an embossing station 84 may, as shown in Fig. 11a and 11b, be formed from pyramidal embossments 89 with a rectangular base, which are separated from one another by planar portions 95. No embossments 89 are provided in the planar portions 95. The embossing depth 93 of the embossments 89 is about 0.3 mm in this exemplary embodiment. Here, the width of an embossment 89 is about 0.6 mm and the length is about 0.9 mm. The embossments 89 are arranged in embossment rows 97, which are formed by a plurality of neighbouring embossments 89 extending in the cross direction 98 of the paper. The embossment rows 97 are arranged at an angle of about 1° relative to the cross direction 98. The distance between the embossments 89 of two neighbouring embossment rows 97 is about 2.2 mm in this exemplary embodiment. In the machine direction 99 of the paper, successive embossments 89 of two embossment rows 97 have an offset, i.e. the embossments 89 are not arranged directly above one another in the machine direction 99, but are offset at an angle. In this exemplary embodiment, the offset is about 0.6 mm. This results in embossment columns 100 that extend at an angle to the machine direction 99. The system shown in Fig. 1a to 1c may have system components according to any of the exemplary embodiments described herein. For example, a system for producing kraft paper is also disclosed which has the basic features of the system shown in Fig. 1a to 1c and is equipped with a wire section as shown in Fig. 2, with a compacting apparatus as shown in Fig. 3 and with an embossing station as shown in Fig. 12.

Claims

1. A method for producing kraft paper comprising the following steps: _ forming a fibrous web extending in the machine direction (1) by continuously applying a fibrous suspension to a wire section (2) by a headbox (3), _ pressing the fibrous web, which has been partially dewatered in the wire section (2), in a press section (5), _ optionally, compacting the formed fibrous web by a compacting apparatus (21), in particular by a Clupak device, in the longitudinal machine direction, _ further drying of the fibrous web in a dryer section (6), optionally calendering, in particular embossing, of the fibrous web in a calendering station (22), - winding the paper web formed from the fibrous web in a reeling station (7), characterised in that _ the production speed exceeds 600 m / min, and - the width of the fibrous web exceeds 4.5 m and, in particular, exceeds 5.5 m.

2. The method according to claim 1, characterised in that the wire section (2) comprises a dewatering wire (8), wherein the fibrous suspension is applied to the outer side (9) of the dewatering wire (8) in the area of a breast roll (10) of the wire section (2), wherein a shaking apparatus (4) causes the dewatering wire (8) to oscillate in the cross direction in the area of the breast roller (10), - in that the compacting apparatus (21) comprises a circulating belt (26), a nip bar (33), a wrap roll (34), a counter roll (28) and preferably a belt drive roll (31), wherein the compacting apparatus (21) has a compacting mode in which the circulating belt (25) is pressed towards the counter roll (28) by the nip bar (33) and wraps around the counter roll (28) over a wrap angle (34), wherein, in the compacting mode, a compaction nip (30) is formed between the belt (26) and the counter roll (28), which is designed to convey the fibrous web at production speed, thereby compacting it in the machine flow direction (1), _ in that the fibrous web is dried in an after-dryer section (20) after being compacted, wherein the after-dryer section (20) has a contact drying region (70) and a subsequent impingement drying region (71), wherein multiple drying cylinders (72) with a separate drying wire (73) are provided in the contact drying region (70), wherein the drying wire (73) presses the fibrous web against the outer circumference of the drying cylinder (72), and wherein the impingement drying region (71) comprises at least one impingement drying portion (83) in which the fibrous web passes through a free shrinkage segment which has a length of at least 15.0 m.

3. The method according to claim 1 or 2, characterised in that the compacting apparatus (21) comprises a circulating belt (26), a nip bar (33), a wrap roll (34), a counter roll (28) and preferably a belt drive roll (31), wherein the compacting apparatus (21) has a compacting mode in which the circulating belt (25) is pressed towards the counter roll (28) by the nip bar (33) and wraps around the counter roll (28) over a wrap angle (34), wherein, in the compacting mode, a compaction nip (30) is formed between the belt (26) and the counter roll (28), which is designed to convey the fibrous web at production speed, thereby compacting it in the machine flow direction (1), - wherein the belt (26) is driven by a belt drive (27) in the compacting mode and the counter roll (28) is driven by a counter roll drive (29) in the compacting mode, and / or _ wherein the wrap angle (35) can be adjusted and set by displacing the wrap roll (34) by an adjusting device (39), and / or - wherein the compacting apparatus (21) can be operated in an emergency operation mode, in which the nip bar (33) is retracted relative to the compacting mode, so that a gap is formed between the belt (26) and the counter roll (28), wherein the gap is preferably larger than 5 mm, and / or _ wherein the fibrous web optionally: runs in the compacting apparatus (21) and is conveyed between the moving belt (26) and the moving counter roll (28) and is thereby compacted in the machine flow direction (1), 0 or is conveyed along a bypass path (47) via a bypass assembly (46), bypassing the compacting apparatus (21), and / or wherein a release agent dispensing assembly (36) with release agent nozzles (61) dispenses a release agent onto the lateral surface of the counter roll (28), wherein the release agent is dispensed discontinuously, intermittently operated via pulsed nozzle valves (62) through the nozzles.

4. The method according to any one of claims 1 to 3, characterised in that after drying in the dryer section (6), the fibrous web is embossed in an embossing station (84), wherein the fibrous web optionally has a dry content of at least 85 wt% when it enters the embossing station (84).

5. A system for producing kraft paper comprising the following system components: - a wire section (2) for forming a fibrous web by continuously applying a fibrous suspension in the machine flow direction (1) by a headbox (3), a press section (5) for pressing the fibrous web that has been partially dewatered in the wire section (2), - optionally a compacting apparatus (21), in particular a Clupak device, for compacting the fibrous web formed in the longitudinal machine direction, - a dryer section (6) for drying the fibrous web, optionally a calendering station (22) for calendering, in particular for embossing, the fibrous web, and _ a reeling station (7) for winding the paper web formed from the fibrous web, characterised in that - the system has a production speed exceeding 600 m / min, and _ in that the system is designed to produce a fibrous web with a width exceeding 4.5 m and in particular exceeding 5.5 m.

6. The system according to claim 5, characterised - in that the wire section (2) comprises a dewatering wire (8), onto the outer side (9) of which a fibrous suspension can be applied in the area of a breast roll (10), wherein a shaking apparatus (4) is provided, designed to cause the breast roll (10) to oscillate transversely to the travel direction (23) of the dewatering wire (8), - in that the compacting apparatus (21) comprises a circulating belt (26), a nip bar (33), a wrap roll (34) a counter roll (28) and preferably a belt drive roll (31), wherein the compacting apparatus (21) has a compacting mode in which the circulating belt (26) is pressed towards the counter roll (28) by the nip bar (33) and in which the belt (26) wraps around the counter roll (28) over a wrap angle (35), wherein, in the compacting mode, a compaction nip (30) is formed between the belt (26) and the counter roll (28), which is designed to convey the fibrous web at production speed, thereby compacting it in the machine flow direction (1), and _ in that an after-dryer section (20) is provided after the compacting apparatus (21) in the machine flow direction (1), wherein the after-dryer section (20) has a contact drying region (70) and a subsequent impingement drying region (71), wherein multiple drying cylinders (72) with a separate drying wire (73) are provided in the contact drying region (70), wherein the drying wire (73) is designed to press the fibrous web against the outer circumference of the drying cylinder (72), and wherein the impingement drying region (71) comprises at least one impingement drying portion (83) in which the fibrous web passes a free shrinkage segment which has a length of at least 15.0 m.

7. The system according to claim 5 or 6, characterised in that the compacting apparatus (21) comprises a circulating belt (26), a nip bar (33), a wrap roll (34), a counter roll (28) and preferably a belt drive roll (31), wherein the compacting apparatus (21) has a compacting mode in which the circulating belt (26) is pressed towards the counter roll (28) by the nip bar (33) and in which the belt (26) wraps around the counter roll (28) over a wrap angle (35), wherein, in the compacting mode, a compaction nip (30) is formed between the belt (26) and the counter roll (28), which is designed to convey the fibrous web at production speed, thereby compacting it in the machine flow direction (1), - wherein the belt (26) is driven by a belt drive (27) in the compacting mode and the counter roll (28) is driven by a counter roll drive (29) in the compacting mode, and / or wherein an adjusting device (39) is provided for displacing the wrap roll (34) and thereby for adjusting the wrap angle (35), and / or - wherein the compacting apparatus (21) can be operated in an emergency operation mode, in which the nip bar (33) is retracted compared to the compacting mode, so that a gap is formed between the belt (26) and the counter roll (28), and / or - wherein a bypass assembly (46) is provided for conveying the fibrous web along a bypass path (47), bypassing the compacting apparatus (21), and / or - wherein a release agent dispensing assembly (36) with release agent nozzles (61) for dispensing a release agent onto the lateral surface of the counter roll (28) is provided, wherein the release agent nozzles (61) have intermittently operated nozzle valves (62) for discontinuous, pulsed discharge of the release agent.

8. The system according to any one of claims 5 to 7, characterised in that the calendering station (22) is configured as an embossing station (84), wherein the embossing station (84) comprises an embossing roll (85) and a counter roll (86), wherein an embossing nip (87) is provided between the embossing roll (85) and the counter roll (86), through which the fibrous web is guided for embossing, wherein the embossing roll (85) is provided with an embossing profile (88) on its surface, and wherein the counter roller (86) has a resilient surface (88).

9. A paper produced by a method according to any one of claims 1 to 4.