EP3792393A1 - Dispositif et procédé de fabrication d'une bande de matière fibreuse - Google Patents

Dispositif et procédé de fabrication d'une bande de matière fibreuse Download PDF

Info

Publication number
EP3792393A1
EP3792393A1 EP20185892.5A EP20185892A EP3792393A1 EP 3792393 A1 EP3792393 A1 EP 3792393A1 EP 20185892 A EP20185892 A EP 20185892A EP 3792393 A1 EP3792393 A1 EP 3792393A1
Authority
EP
European Patent Office
Prior art keywords
covering
fibrous web
press
section
guided
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20185892.5A
Other languages
German (de)
English (en)
Inventor
Ronaldo Parucker
Jonas BERGSTRÖM
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP3792393A1 publication Critical patent/EP3792393A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/14—Making cellulose wadding, filter or blotting paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/006—Making patterned paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0272—Wet presses in combination with suction or blowing devices
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/04—Arrangements thereof
    • D21F3/045—Arrangements thereof including at least one extended press nip

Definitions

  • the present invention relates to a device for producing a fibrous web, in particular a tissue paper web, comprising a forming section for forming the fibrous web, the forming section comprising a gap former with a headbox, a first covering and a second covering; a press section for pressing the formed fibrous web, the press section comprising a first press element and a second press element which together form a press nip through which, when the device is used as intended, the first covering, a third covering and, in between, the fibrous web; and a drying section for further drying the pressed fibrous web, the drying section comprising a drying cylinder to which the fibrous web transported on the third clothing is transferred, a transfer device for this purpose together with the drying cylinder forming a transfer nip through which the fibrous web can be used when the device is used as intended and the third covering can be guided.
  • the present invention also relates to a method for producing a fibrous web, in particular a tissue paper web, using such a device.
  • Such a device and such a method are for example from the document US 8,414,741 B2 known.
  • this known device has some disadvantages. For example, it is necessary to exert a very high pressure on the fibrous web locally between the two pressing elements of the press section in order to achieve the desired dry content of the fibrous web after it has passed through the press section.
  • a high compressive force has a negative effect on the bulk, ie on the thickness of the fibrous web in relation to the amount of fibrous material used. It is true that this undesirable effect can be counteracted by using pressing elements which together form an extended press nip, but this makes the press section significantly more complex and therefore more expensive, especially if very sophisticated technology, for example with variable pressure zones, has to be used to provide the extended press nip.
  • the device can have means upstream of the press section in order to predewater the fibrous web, but these also make the device complex in terms of construction and thus expensive.
  • a device which ensures a high or desired dry content after the fibrous web has passed through the press section without great structural additional expenditure, while at the same time the bulk of the fibrous web should be as large as possible.
  • the generic device described at the outset is developed in such a way that the first press element is a suction roll with a suctioned circumferential section over which the first covering and the fibrous web transported on the first covering are guided before reaching the press nip.
  • the first press element is a suction roll
  • the fibrous web is pre-dewatered by the suction system before it passes through the press nip, so that it enters the press nip with a higher dry content compared to a variant in which the fibrous web has not previously been suctioned.
  • This makes it possible to exert a lower pressing force on the fibrous web in the press nip of the press section in order to achieve the desired dry content at the end of the press nip. In this way, a relatively large bulk of the fibrous web can be achieved with the simultaneous use of relatively inexpensive technology for the two pressing elements of the press section.
  • the dry content of the fibrous web can be increased even further in a technically relatively simple manner before passing through the press nip of the press section if the device is designed to be operated in a first operating mode in which the third clothing is also guided over the evacuated circumferential section of the suction roll is, in such a way that the first covering radially inside, the third covering radially outside and in between the fibrous web are guided over the suctioned circumferential section of the suction roll, the third covering preferably with a tension of at least 10kN / m over the suctioned circumferential section of the suction roll to be led.
  • the fibrous web is different than in the publication mentioned at the beginning US 8,414,741 B2 described, not only dewatered by the negative pressure of the suction roll acting on the fibrous web, but also by the belt tension of the third covering.
  • the fibrous web is already pressed between the first covering and the third covering before it reaches the press nip of the press section, with the squeezed out water being sucked off by the suction roll.
  • the first covering, the third covering and the fibrous web arranged in between are preferably guided over a circumferential section of the suction roll with suction, which is at least 45 °, more preferably between 60 ° and 100 °.
  • the device be designed to be operated in a second operating mode in which the third covering is not or only slightly guided over the suctioned circumferential section of the suction roll.
  • “Slightly” in this context means that the third covering is guided over a circumferential section of the suction roll that is sucked in and is smaller than 30 °, preferably smaller than 15 °.
  • the device between the first operating mode and to be able to switch the second operating mode back and forth result in particular when different characteristics are used for the first operating mode and the second operating mode as the third covering, as will be explained in more detail below.
  • Switching between the two operating modes can be achieved, for example, in that a guide roller arranged in the wire loop of the third clothing, preferably the guide roll immediately upstream of the press nip of the press section, is arranged in the wire loop so that it can be displaced, in particular pivoted.
  • the first covering it is proposed that it be a felt.
  • "Felt” can be understood to mean a covering which has at least one layer of staple fibers.
  • the staple fibers behave like a sponge in the press section, which is first squeezed out in the press nip and then relaxes again immediately after the press nip, with water being withdrawn from the fibrous web by capillary forces during the relaxation and being absorbed in the felt.
  • the third covering which is guided through the press nip of the press section together with the first covering and the fibrous web arranged in between, can absorb as little water as possible.
  • the third covering consists essentially of an extruded plastic film, which can have one or more layers.
  • the third covering can consist of four individually extruded, stretched and then laminated plastic layers, each individual layer being, for example, 250 ⁇ m thick.
  • the third covering can consist of the plastic film over the entire width and only have a single seam, in particular a transverse seam, in order to make the covering endless.
  • the third covering can also consist of several parts of the plastic film, the parts being connected to one another at corresponding seams, or the third covering can be formed by a helically wound film strip, the finished covering then generally only having a single seam, in particular Has longitudinal seam.
  • the third covering in a first form, have a top side facing the fibrous web, an underside facing away from the fibrous web and, for contouring the fibrous web, a multiplicity of through openings which extend from the top to the bottom.
  • the through openings can be made in the third covering in any known manner.
  • the third covering consists essentially of an extruded plastic film, as described above, the through-openings can be made, for example, by laser drilling or etching.
  • the through-bores should have the property, with regard to their dimensions, of contouring the fibrous web when used as intended in the device according to the invention, it is preferred if the through-openings are made in the third covering by punching.
  • some or all of the through openings have a clear opening of an area that corresponds to a circle with a diameter between 1mm and 5mm, some or all of the through openings preferably being essentially the shape of a cylinder, more preferably the shape of a straight circular cylinder.
  • the shape of the openings does not necessarily have to be that of a straight circular cylinder.
  • the size of the area of the passage opening is of primary importance in order to achieve good contouring of the fibrous web.
  • the person skilled in the art understands the term “contouring” to mean that the finished fibrous web can also be made up of several with the naked eye Distance has clearly recognizable pattern or embossing.
  • the third covering differs noticeably from the corresponding covering in the publication mentioned at the beginning due to the passage openings proposed here, which outlines the fibrous web when the device according to the invention is used as intended US 8,414,741 B2 , in which this covering is smooth and preferably impermeable.
  • the closed surface on the top and / or bottom of the third covering can be designed to be essentially smooth.
  • the term “closed area” here means the area of the third covering that remains between the passage openings.
  • the structuring of the closed surface can be achieved, for example, by etching shapes.
  • the third covering in a second embodiment has an upper side facing the fibrous web and an underside facing away from the fibrous web, the upper side being essentially smooth, so as not to contour the fibrous web.
  • the third covering according to the first aspect and the third covering according to the second aspect are optionally used in the device according to the invention, very different fibrous webs, in particular tissue products, can be produced on the same device, namely in particular contoured and non-contoured fibrous webs.
  • Contoured fibrous webs usually have more bulk, which has a beneficial effect on their absorption capacity and perceived softness. This is particularly important for hygiene products that are intended for use on the skin.
  • Non-contoured fibrous webs generally do not have this high quality. On the other hand, they use less energy and are therefore more cost-effective to manufacture. A machine that can produce both types of fibrous webs without major retooling efforts can serve a significantly larger market.
  • the second press element can advantageously have a surface that faces the press nip and is smooth.
  • smooth means in particular that this surface has no grooves, bores or the like. Due to the smooth surface, the fibrous web follows the third covering more easily and is no longer guided with the first covering after the press nip. This is particularly true when the third covering is used according to the first form, because then a negative pressure acting through the through bores of the third covering can develop on the fibrous web, at least as long as the second pressing element is in contact with the third covering.
  • the second press element is designed to form an extended press nip together with the first press element.
  • the first and the second press element can jointly form a shoe press unit, the second press element comprising the so-called press shoe and a press cover rotating over it, while the first press element is designed according to the invention as a suction roll.
  • the press shoe can have a concave shape which is adapted to the shape of the roller opposite it.
  • the suctioned circumferential section of the suction roll either ends in front of the extended press nip or, what is more preferred, in the extended press nip, but in any case does not go beyond the end of the press nip, so that the fibrous web after leaving the press nip is continued with the third covering and does not stick to the first covering, which is to separate from the fibrous web after the press nip.
  • the transfer device can also have a surface facing the transfer nip, which is preferably designed to provide an extended transfer nip.
  • this surface is uneven, preferably grooved, in order not to exert a suction effect on the fibrous web in the transfer nip through the passage openings of the third covering, so that the fibrous web simply follows the surface of the drying cylinder after the transfer nip.
  • means for heating the fibrous web before reaching the press nip can also be provided, the means preferably acting on the fibrous web in the evacuated peripheral section of the suction roll.
  • the means for heating the fibrous web can be, for example, a device that applies steam to the fibrous web.
  • the steam can come from a reboiler which is connected to the drying cylinder and / or a steam hood arranged above the drying cylinder. Alternatively, however, a conventional steam hood or hot air can also be used as a means for heating the fibrous web.
  • Another aspect of the present invention relates to a method for producing a fibrous web, in particular a tissue paper web, using a device described above.
  • the Device can be switched back and forth between the first operating mode and the second operating mode or is. In this way, the device can produce different qualities of fibrous webs, namely, in particular, a contoured fibrous web and a non-contoured fibrous web, without major retooling.
  • the third covering in the second form does not have any through openings and is therefore essentially impermeable, It is advantageous not to guide the third clothing or only slightly over the suctioned circumferential section of the suction roll in accordance with the second operating mode so that air can flow through the fibrous web during suction through the suction roll.
  • the air can flow through the passage openings of the covering.
  • the first covering which is preferably designed as a felt, is basically permeable in order to allow the suction effect of the suction roll to act on the fibrous web.
  • the first covering which is preferably designed as a felt, can optionally have a smooth surface facing the fibrous web, i.e. a surface that does not contour the fibrous web, or a surface that is suitable for contouring the fibrous web.
  • a smooth surface facing the fibrous web i.e. a surface that does not contour the fibrous web, or a surface that is suitable for contouring the fibrous web.
  • the use of a molding fabric as the first covering should be possible regardless of whether the third covering is used according to the first or second version.
  • FIG 1 shows an exemplary embodiment of the device 10 according to the invention in a first operating mode.
  • the device 10 comprises a forming section 12 for forming a fibrous web FB, a press section 14 adjoining the forming section 12 for pressing the formed fibrous web FB and a drying section 16 following the press section 14 for further drying the pressed fibrous web FB.
  • the fibrous web FB is in Figure 1 shown as a dashed line.
  • a fibrous suspension which consists predominantly of water and has only a small proportion of fibers, is first introduced via a headbox 18 into a gap between a first covering 20 and a second covering 22 of a so-called gap former.
  • the first covering 20 can be a felt, that is to say a covering which has at least one layer of staple fibers
  • the second covering 22 can be a woven forming fabric.
  • the first covering 20, the second covering 22 and the fibrous web FB arranged in between are guided together with a certain tension over a forming roller 24, which is preferably vacuumed in order to at least partially suck off the water pressed from the fibrous suspension.
  • the formed fibrous web FB follows the first clothing 20 to the press section 14.
  • the press section 14 comprises a first press element 26, which according to the invention is designed as a suction roll, and a second press element 28, which, as in this exemplary embodiment, is preferably designed as a shoe press and thus a stationary shoe 30 and a press cover rotating around the shoe 30 32 has.
  • the shoe 30 has a concavely curved surface which faces the convex surface of the first pressing element 26 or the suction roller 26 and is adapted to this.
  • the first pressing element 26 and the second pressing element 28 together form an extended press nip through which the first covering 20, a third covering 34 and the fibrous web FB arranged between them are jointly guided.
  • the suction roll 26 comprises a circumferential section 36 with suction, which is only indicated schematically here.
  • the evacuated circumferential section 36 can extend, for example, over approximately 90 ° of the circumference of the suction roll 26. It ends either in front of or, as here, preferably within the extended press nip which is formed by the first press element 26 and the second press element 28.
  • the first covering 20, the third covering 34 and the fibrous web FB arranged between them are in the in Figure 1
  • the illustrated first operating mode of the device according to the invention is guided jointly over at least a large part, ie over at least 45 °, preferably over at least 60 °, of the evacuated peripheral section 36.
  • the fibrous web FB experiences an efficient preliminary dewatering in addition to the suction by the suction roll 26 before it reaches the press nip of the press section 14.
  • the dry content of the fibrous web FB is thus in comparison to the embodiment that is described in the publication cited at the beginning US 8,414,741 B2 is described, already relatively high before reaching the press nip.
  • this has the consequence that the actual press, in particular the shoe press, can be designed to be simpler and therefore more cost-effective.
  • the higher dry content of the fibrous web FB in front of the press nip also has a positive effect on the contouring of the fibrous web FB. Because of the higher dry content, the material of the fibrous web FB, in particular in the more densely compressed areas in the press nip, has a higher resistance force and thus a larger bulk at the end.
  • the first covering 20 and the third covering 34 separate from one another, the fibrous web FB being guided further on the third covering 34.
  • the evacuated peripheral section 36 of the suction roll 26 ends before the end of the extended press nip.
  • the press jacket 32 rotating around the shoe 30 has a surface facing the third covering 34 and the fibrous web FB, which is essentially smooth, in particular free of grooves or the like, is trained. As a result, a negative pressure can act on the fibrous web FB through the third covering 34, at least if it is made permeable, which holds the fibrous web FB on the third covering 34.
  • the third covering 34 is designed to be permeable.
  • the third covering 34 is preferably an extruded plastic film, which can have one or more layers.
  • the third covering 34 can consist of four individual plastic layers that have been separately extruded, stretched and then laminated together. Thinner layers can be stretched more than thicker ones, so that laminates formed accordingly can have high tensile strengths.
  • the main stretching direction of the individual layers preferably points in the machine direction or MD direction of the finished third clothing 34.
  • the third covering 34 has a plurality of relatively large through openings 40 which connect an upper side 42 facing the fibrous web FB with an underside facing away from the fibrous web FB.
  • the through openings 40 can have the shape of a straight circular cylinder, the cylinder axis being oriented orthogonally to the upper side 42 or to the lower side of the third covering 34.
  • the through openings 40 are preferably made in the third covering 34 by punching.
  • the through openings 40 are dimensioned such that they are able to contour the fibrous web FB in the device 10 according to the invention. Good results could be achieved with diameters between 1mm and 5mm, for example with 1.3mm or 3.0mm.
  • This good contact enables the fibrous web FB to adhere easily to the drying cylinder 50 without having to apply excessive pressure forces in a transfer device 48, which is also described in more detail below, and also enables good heat transfer from the drying cylinder 50 to the fibrous web FB.
  • the drying cylinder 50 can be designed with thinner walls, which on the one hand reduces the manufacturing costs and on the other hand improves the heat transfer even further.
  • the closed surface can optionally be designed to be essentially smooth or slightly structured in order to impress finer structures in the fibrous web FB.
  • Structures 44 of this type can be engraved into the top side 42 by etching, for example.
  • the contouring and possibly finer structuring of the fibrous web FB by the third covering 34 according to the first embodiment takes place in the FIG Figure 1
  • the illustrated first operating mode of the device 10 according to the invention not only in the press nip between the first press element 26 and the second press element 28, but to a lesser extent beforehand in the section of the evacuated peripheral section 36 of the suction roll 26 over which the first covering 20 and the third covering 34 and the fibrous web FB arranged therebetween are jointly guided over it.
  • the fibrous web FB After leaving the press nip, the fibrous web FB follows the third covering 34 and is guided to the dryer section 16 via a deflection roller 46, which can be vacuumed to ensure that the fibrous web FB is securely held on the third covering 34 during deflection.
  • the dryer section 16 comprises the previously mentioned transfer device 48, by means of which the fibrous web FB from the third clothing 34 to the also previously mentioned drying cylinder 50 is transferred.
  • the drying cylinder 50 is in Figure 1 only one section shown. It can be designed as a so-called Yankee cylinder and have a steam hood or Yankee hood, not shown here.
  • the fibrous web FB After the further drying of the fibrous web FB on the surface of the drying cylinder 50, the fibrous web FB can be removed from the surface of the drying cylinder 50 by means of a creping doctor and then either further processed or refined or directly wound up.
  • the transfer device 48 like the second press element 28 of the press section 14, preferably comprises a stationary shoe 52, which has a concave surface facing the drying cylinder 50 and adapted to it, and a press jacket 54 rotating around the shoe 52.
  • the press jacket 54 of the transfer device 48 does not have an essentially smooth surface, but preferably comprises a plurality of grooves or the like, in particular circumferential grooves, in order to use the through openings 40 of the third covering 34 to feed the fibrous web FB in a transfer nip between the transfer device 48 and To ventilate the drying cylinder 50, so that no suction effect can arise between the third clothing 34 and the fibrous web FB and the fibrous web FB reliably continues to follow the smooth surface of the drying cylinder 50 after leaving the transfer nip.
  • the reliable transfer of the fibrous web FB from the third clothing 34 to the surface of the drying cylinder 50 can be achieved without having to exert particularly large pressing forces on the fibrous web FB by means of the transfer device 48.
  • the transfer device not only can the transfer device be made technically simpler and thus more cost-effective, but the outer wall of the drying cylinder 50 can also be made thinner, since it only has to withstand lower pressure forces.
  • a thinner design of the wall of the drying cylinder 50 means not only material and thus cost savings, but also better heat transfer from the interior of the drying cylinder 50 through its wall into the Fiber web 50.
  • the device 10 according to the invention can thus be operated in a very energy-efficient and thus cost-efficient manner.
  • the distance or the length of the third covering between the press nip of the dryer section and the transfer nip of the transfer device must also be relatively long so that the fibrous web has sufficient time to remove the moisture film that forms after the press nip between the fibrous web and the smooth and impermeable third covering to suck in again so that it does not prevent the fibrous web from detaching from the third covering due to its suction effect.
  • a large length of the third covering between the press nip and the transfer nip leads to higher costs.
  • the device 10 can preferably also be operated in a second operating mode.
  • the device 10 in the second operating mode is shown in FIG Figure 2 shown schematically. In the following, only the differences between the second operating mode and the first operating mode will be discussed, so that otherwise the above explanations regarding the first operating mode, taking into account the Figure 1 is referred.
  • a deflection roller 56 which is arranged in the wire loop of the third clothing 34 and is mounted directly in front of the press nip of the press section 14, is positioned differently than in the first operating mode, namely so that the third clothing 34 does not or only slightly over the vacuumed circumferential section 36 of the suction roll 26 is guided.
  • the deflection roller 56 is preferably pivotably mounted in the device 10 in order to easily switch between the position in the first operating mode according to FIG Figure 1 and the position in the second operating mode according to Figure 2 to be adjusted.
  • the positioning of the deflection roller in the second operating mode allows the fibrous web FB to be dewatered efficiently along the evacuated peripheral section 36 of the suction roller 26 even if the third covering 34 is not or only slightly permeable. Since the third covering 34 does not or only slightly covers the fibrous web FB in the evacuated peripheral section 36 of the suction roll 26, air can be sucked through the fibrous web and the first covering by the suction roll 26 without hindrance.
  • the second operating mode shown here preferably uses a third covering 34 according to a second embodiment, which is characterized in that its upper side 42 facing the fibrous web FB is essentially smooth so that it does not contour the fibrous web FB.
  • the third covering 34 according to the second expression does not have the relatively large through openings 40 as the third covering 34 according to the first expression.
  • significantly smaller connections between the top 42 and the underside of the third covering according to the second embodiment are possible, but a certain amount around the third covering to give significantly lower permeability.
  • these connections are not suitable for contouring the fibrous web FB.
  • the fibrous web FB can be pressed over the entire area in the press nip of the press section 14, which on the one hand makes the production of the fibrous web more energy-efficient overall, but on the other hand leads to a lower bulk and thus to a lower absorption capacity and perceived softness of the finished fibrous web FB, in particular tissue web.
  • means 58 for heating the fibrous web FB can optionally be provided, which are suitable for heating the fibrous web FB before it reaches the press nip in the press section 14.
  • the means 58 are preferably arranged in such a way that they act on the fibrous web FB in the area of the circumferential section 36 of the suction roll 26 that is sucked.
  • the means 58 can apply steam to the fibrous web, for example.
  • the steam can originate from a reboiler of the drying cylinder 50 and / or a steam hood arranged above it.
  • the steam can also reach the fibrous web FB through the third covering 34, provided that it has the relatively large through openings 40.
  • the dry content of the fibrous web FB can be increased even further and the contouring of the fibrous web FB in the press nip can be carried out even more easily.
EP20185892.5A 2019-09-13 2020-07-15 Dispositif et procédé de fabrication d'une bande de matière fibreuse Withdrawn EP3792393A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019124680.6A DE102019124680A1 (de) 2019-09-13 2019-09-13 Vorrichtung und Verfahren zur Herstellung einer Faserstoffbahn

Publications (1)

Publication Number Publication Date
EP3792393A1 true EP3792393A1 (fr) 2021-03-17

Family

ID=71620258

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20185892.5A Withdrawn EP3792393A1 (fr) 2019-09-13 2020-07-15 Dispositif et procédé de fabrication d'une bande de matière fibreuse

Country Status (2)

Country Link
EP (1) EP3792393A1 (fr)
DE (1) DE102019124680A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020060042A1 (en) * 1998-03-20 2002-05-23 Ingvar Klerelid Paper machine for and method of manufacturing soft paper
WO2010030298A1 (fr) * 2008-09-11 2010-03-18 Albany International Corp. Bande perméable pour la fabrication de mouchoirs, serviettes ou non-tissés
US8414741B2 (en) 2008-09-17 2013-04-09 Metso Paper Sweden Ab Tissue papermaking machine and a method of manufacturing a tissue paper web

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020060042A1 (en) * 1998-03-20 2002-05-23 Ingvar Klerelid Paper machine for and method of manufacturing soft paper
WO2010030298A1 (fr) * 2008-09-11 2010-03-18 Albany International Corp. Bande perméable pour la fabrication de mouchoirs, serviettes ou non-tissés
US8414741B2 (en) 2008-09-17 2013-04-09 Metso Paper Sweden Ab Tissue papermaking machine and a method of manufacturing a tissue paper web

Also Published As

Publication number Publication date
DE102019124680A1 (de) 2021-03-18

Similar Documents

Publication Publication Date Title
EP1925727B1 (fr) Machine pour la fabrication du papier tissu
EP1626122B1 (fr) Procédé et dispositif pour produire une bande de matière fibreuse pourvue d'une structure superficielle tridimensionelle
EP1936031B1 (fr) Machine destinée à la fabrication d'une bande de matière fibreuse
EP0496965B1 (fr) Section de presse
DE60018424T2 (de) Trockenpartie
EP1314817B1 (fr) Procédé et machine pour fabriquer une bande fibreuse
EP1770210A1 (fr) Procédé et dispositif pour la production d'une bande de papier tissu
EP1749935A2 (fr) Procédé de fabrication de papier tissu
EP1775380A2 (fr) Procédé pour la fabrication de papier tissu
EP1754824A1 (fr) Procédé de fabrication de papier tissu
DE102005054510A1 (de) Tissuemaschine
EP1586698B1 (fr) Dispositif de séchage
WO1988008051A1 (fr) Machine pour produire des bandes de materiaux fibreux
DE102019124681A1 (de) Vorrichtung und Verfahren zur Herstellung einer Faserstoffbahn
DE102011084980A1 (de) Walze
EP1205599A2 (fr) Machine pour la fabrication d'une bande fibreuse
EP1852551A1 (fr) Dispositif d'égouttage
EP3792393A1 (fr) Dispositif et procédé de fabrication d'une bande de matière fibreuse
DE19912226A1 (de) Verfahren und Vorrichtung zum Herstellen von Tissue-Papier sowie das damit erhältliche Tissue-Papier
DE102018124016A1 (de) Vorrichtung und Verfahren zur Entwässerung einer Faserstoffbahn
DE4026339C2 (de) Spezialband für eine Entwässerungspresse einer Papiermaschine
EP3919677A1 (fr) Procédé et dispositif de fabrication d'une bande de matière fibreuse structurée
DE102020105480A1 (de) Naht für eine perforierte Kunststofffolie
WO2013037527A2 (fr) Combinaison d'un revêtement de cylindre ou d'une chemise de presse à sabot et d'un habillage de machine à papier et utilisation d'une telle combinaison
DE10233926A1 (de) Weiche Tissue-Papierbahn, Verfahren und Vorrichtung zur Herstellung derselben

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210917

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20231211