EP1120490A2 - Forme et procédé pour la production d'une bande de papier tissu - Google Patents

Forme et procédé pour la production d'une bande de papier tissu Download PDF

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Publication number
EP1120490A2
EP1120490A2 EP00127611A EP00127611A EP1120490A2 EP 1120490 A2 EP1120490 A2 EP 1120490A2 EP 00127611 A EP00127611 A EP 00127611A EP 00127611 A EP00127611 A EP 00127611A EP 1120490 A2 EP1120490 A2 EP 1120490A2
Authority
EP
European Patent Office
Prior art keywords
suction
sieve
band
drainage
separation point
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.)
Granted
Application number
EP00127611A
Other languages
German (de)
English (en)
Other versions
EP1120490A3 (fr
EP1120490B1 (fr
Inventor
Thomas Thoröe Scherb
Harald Schmidt-Hebbel
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 Paper 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 Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1120490A2 publication Critical patent/EP1120490A2/fr
Publication of EP1120490A3 publication Critical patent/EP1120490A3/fr
Application granted granted Critical
Publication of EP1120490B1 publication Critical patent/EP1120490B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/32—Washing wire-cloths or felts
    • 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
    • D21F9/00—Complete machines for making continuous webs of paper
    • D21F9/003—Complete machines for making continuous webs of paper of the twin-wire type

Definitions

  • the invention relates to a former of a machine for producing a Tissue web, with two continuous endless drainage belts run together to form a material inlet gap and then guided over a forming element, in particular a forming roller are. It relates to a method according to the preamble of claim 11.
  • Twin-wire and crescent formers used in tissue production the fiber suspension is placed between two dewatering belts, which are guided over at least part of the circumference of a forming roller are.
  • twin wire formers both drainage belts are as Drainage screens executed.
  • crescent formers are used as inner sieves a felt band is provided.
  • the outer belt is guided away from the inner belt.
  • the tissue web formed between the two drainage belts runs with the lower drainage belt with. This becomes problematic Separation process when the outer band is very rough and / or very open. This is when using a screen with zonal different Screen permeability, i.e. when using a so-called DSP sieve the case.
  • the fibers are partly caused by the drainage flow pulled into the drainage belt where they get caught.
  • this has the disadvantage that the tissue web is too tends to run along with the outer wire.
  • Another disadvantage is that the fibers in the outer sieve do not hook completely during the separation process the tissue web can be removed from the rough, open outer screen, but partly remain in the outer sieve. In operation, this leads to a increasing contamination of the outer sieve and thus a loss of quality the web formed as well as runability problems in the tissue machine.
  • the aim of the invention is to provide a former and a method mentioned type to create reliable and safe operation a tissue machine with a DSP screen in the initial drainage area guarantee.
  • this object is achieved in that as not a drainage sieve coming into contact with the forming element with zonal different sieve permeability is provided and that in the area of the separation point at which this outer band and the Inner band can be separated again, a suction element inside the loop of the inner band arranged and / or the forming element is provided with a suction zone.
  • a suction box for example, can be used as the suction element with strips and suction slots, a suction roller and / or a pipe suction device be used.
  • Sieves of zonal different permeability are, for example, from the SE 427 053 known. Then the relevant sieves can e.g. from a Tissues exist in the one or more levels provided Longitudinal and transverse threads according to a predefinable pattern are interwoven with each other, that systematically distributed areas are more suitable Result in size in which the number of crossing points is equal Is zero or significantly smaller than in the weave structure of the remaining fabric.
  • the vacuum in the suction element can be adjusted. So that's one easy adaptation to the respective operating conditions (Basis weight, porosity of the web, speed) possible.
  • the suction element is expediently in front of the tape running direction Separation point arranged.
  • the separation of the two bands can be done, for example, on the suction element respectively.
  • the suction element is advantageously designed such that it is the inner band acted on at least substantially over its entire width.
  • the suction element can be provided with suction openings, for example be arranged so that each point of the tissue web in the Suction area arrives before the drainage belts are separated.
  • the suction openings can for example consist of at least one machine width Suction slot or viewed from several in the machine direction successive rows of holes offset from one another (round holes, elongated holes, etc.) exist.
  • blowing element can be arranged.
  • This blowing element is Conveniently designed so that it the outer band at least in acted essentially across its entire width.
  • a blowing medium For example, water or preferably air can be provided.
  • the vacuum in question is preferably adjustable again.
  • the contact intensity between the tissue web can be vacuumed and change and adjust the inner band.
  • a higher vacuum For example, the adhesion of the web to the outer belt is reduced and increased on the inner band, which improves the separation accordingly becomes.
  • a conditioning device such as in particular a screen cleaning device.
  • a screen cleaning device In order to counteracts the tendency of the DSP sieve to become dirty is due to the fact that due to the different permeability Fibers penetrate the volume of the sieve and settle. Corresponding contamination affects the performance of the sieve and thus the quality of the tissue web.
  • the conditioning device is preferably designed so that it Drainage screen at least essentially over its entire width charged away.
  • a corresponding one across the entire width Cleaning device e.g. spray pipes with over the machine width arranged nozzle, jet cleaner, cleaning roller, etc.
  • a traversing, locally intensive effect Cleaning device e.g. Duocleaner, high pressure jet
  • a combination of such cleaning elements can reduce strain on the sieve with a sufficiently good cleaning effect.
  • the former in question is designed as a crescent former in which a felt band is provided as the inner band.
  • the method according to the invention is accordingly characterized in that that as an outer band not in contact with the forming element a drainage sieve with different zonal permeability is used that in the area of the separation point at which this outer band and the inner band are separated again, the inner band by means of a suction element arranged within its loop is sucked and / or that a forming element provided with a suction zone is used.
  • the method according to the invention is advantageously in a crescent former applicable.
  • the screens in question can be made in particular from one fabric exist in one or in several levels provided in one threads running in the first direction with threads running in a second direction Threads are woven together so that there is a grid, that is a multitude of systematically distributed areas of definable configurations separates from each other and determines accordingly, the systematically distributed areas each have at least three in one and at least comprises three threads running in the other direction. With the threads it can in particular be weft threads and warp threads.
  • Figure 1 shows a schematic representation of a crescent former 10 Machine for producing a tissue web 22.
  • Endless drainage belts 12, 14 are provided under formation a stock inlet gap 16 converge and then over a here are formed by a forming roller 18 forming element.
  • the fiber suspension is fed into the stock inlet gap 16 by means of a headbox 20 brought in.
  • the inner band is in the present Embodiment provided as a felt tape.
  • the tissue web 22 which is formed in the process is connected to the forming roller 18 together with the inner band 12 an extended press nip 24 fed between a tissue drying cylinder or Yankee cylinder 26 and a shoe press unit, here a shoe press roll 28, is formed. Is in the tape running direction L before the extended nip 24 the inner band 12 guiding the tissue web 22 via a suction device, here a suction roller 30 out.
  • a drying hood 32 can be assigned to the Yankee cylinder 26.
  • Figure 2 shows an enlarged view of the forming area of the in the Figure 1 shown formers in which further essential details of the invention Arrangement can be seen.
  • the forming roller 18 can have a suction zone 38 be provided. With such a suction-formed forming roller 18, the Nonwoven fabric is pulled onto the felt forming the inner band 12.
  • the suction element 36 is in the tape running direction L. the separation point 34 arranged.
  • the vacuum in the suction element 36 can be adjustable. The same applies to the vacuum in the suction zone 38.
  • the suction element 36 can be designed so that it Inner band 12 at least substantially over its entire width acted upon.
  • At least one blowing element 40 may be arranged inside the loop of the outer wire 14 inside the loop of the outer wire 14 inside the loop of the outer wire 14 .
  • the outer screen 14 can thus be supplied with blown air from the inside, for example.
  • This blowing element 40 is advantageously carried out so that it Outer sieve 14 at least essentially over its entire width acted upon.
  • a conditioning device can guide the outer screen 14, which is guided over guide rollers 42-48 50 assigned to be, which is in particular a screen cleaning device can act.
  • This conditioning device 50 is expediently designed so that the outer sieve 14th acted on at least substantially over its entire width.
  • the conditioning device 50 can, for example, be a spray tube "Duocleaner" from Voith Sulzer, one in the drainage screen concerned include indented roller with scraper and / or the like.
  • FIG. 3 shows a schematic illustration of one concerned Drainage sieve with different zonal permeability, here
  • conditioning device assigned to the outer screen 14 50 which has a roller 52, which is pressed into the screen 14, with an associated roller Scraper 54 includes.
  • a spray tube 56 is arranged on the same screen side as the roller.
  • the conditioning device 50 arranged between the two guide rollers 42 and 48.
  • it can also be in the area of a guide roller, for example in the area the guide roller 42, can be provided (cf. FIGS. 4 to 6).
  • FIG. 4 shows a schematic illustration of a roller in the area of a guide roller,
  • the guide roller 42 the outer wire 14 arranged Conditioning device 50 by a "Jet Cleaner" from Voith Sulzer is formed.
  • This conditioning device 50 comprises an inside the loop of the outer screen 14 arranged, the screen 14 acting Nozzle arrangement 60, one opposite this, on the suction device 62 provided on the other side of the screen and one in the tape running direction L arranged in front of it, which acts on the outside of the screen 14 Spray tube 64.
  • the in the tape running direction L in front of the guide roller 42nd provided nozzle arrangement 60 is at a distance in the present case arranged by the guide roller 42.
  • FIG. 5 shows an arrangement comparable to the embodiment according to FIG. 4, however, the nozzle arrangement 60 in that between the outer screen 13 and the guide roller 42 formed inlet gusset 66 is arranged. Moreover, in the present case, the wrap angle over which the Guide roller 42 is wrapped by the outer wire 16, larger than that in the Figure 4 arrangement shown. Otherwise the conditioning device comprises 50 again the same parts as those shown in Figure 4, with each other corresponding elements are assigned the same reference numerals.
  • FIG. 6 shows a schematic representation of one in the area of a guide roller, for example, the guide roller 42, the outer screen 14 arranged conditioning device 50 by a "Duocleaner" from Voith Sulzer is formed.
  • a guide roller for example the guide roller 42, provided conditioning or cleaning device 52 a formed by a rotor nozzle cleaning nozzle 68 with a rotatable Nozzle head 70, which has a nozzle arrangement, not shown.
  • a cylindrical suction cup 72 surrounds the cleaning nozzle 68 and the Nozzle head 70.
  • the interior of the suction bell 72 is in flow with one Suction line 74 connected and forms one of the cleaning nozzle 68 assigned suction space 76.
  • the cleaning nozzle 68 is a High pressure hose 78 supplied with liquid. Accordingly, it can Sieve 14 with, for example, a rotating high-pressure water jet 80 be charged.
  • the dirt and water suction takes place via the suction line 74.
  • the aforementioned parts of the conditioning device 50 are on one Traversing carriage 82 arranged transversely to the tape running direction L.
  • the traversing carriage 82 seated on cross members 84 is not by means of a traversing motor shown driven.
  • this conditioning device 50 can be designed in this way, for example be as described in EP-A-0 731 212.
  • the screens in question can be made in particular from one fabric exist in one or in several levels provided in one threads running in the first direction with threads running in a second direction Threads are woven together so that there is a grid, that a multitude of systematically distributed areas of definable configuration separates from each other and determines accordingly, the systematically distributed areas each have at least three in one and at least three includes threads running in the other direction.
  • the threads can it is in particular weft threads and warp threads.
  • FIG. 7 shows a weaving pattern diagram of a repetitive example Section of a possible embodiment of one by one such fabric formed drainage screen with zonal different Screen permeability.
  • the repeating weave pattern diagram includes ten warp threads and ten in the present embodiment Weft threads. The respective lies in the area of the hatched squares Weft thread below the respective warp thread. In contrast, lies in the area the light squares the respective weft above the respective Warp thread.
  • one or the other the other side of the weave pattern diagram is on the outside.
  • the hatched areas form a grid 86 through which one ultimately ends
  • Plenty of systematically distributed areas 88 configurable configuration be separated from one another and defined accordingly.

Landscapes

  • Paper (AREA)
  • Materials For Medical Uses (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
EP00127611A 2000-01-28 2000-12-16 Forme et procédé pour la production d'une bande de papier tissu Expired - Lifetime EP1120490B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10003685A DE10003685A1 (de) 2000-01-28 2000-01-28 Former und Verfahren zur Herstellung einer Tissuebahn
DE10003685 2000-01-28

Publications (3)

Publication Number Publication Date
EP1120490A2 true EP1120490A2 (fr) 2001-08-01
EP1120490A3 EP1120490A3 (fr) 2001-11-14
EP1120490B1 EP1120490B1 (fr) 2005-05-25

Family

ID=7629016

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00127611A Expired - Lifetime EP1120490B1 (fr) 2000-01-28 2000-12-16 Forme et procédé pour la production d'une bande de papier tissu

Country Status (6)

Country Link
US (1) US6821391B2 (fr)
EP (1) EP1120490B1 (fr)
AT (1) ATE296378T1 (fr)
BR (1) BR0100431B1 (fr)
CA (1) CA2332478C (fr)
DE (2) DE10003685A1 (fr)

Families Citing this family (31)

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Publication number Priority date Publication date Assignee Title
US7445032B2 (en) * 2005-05-05 2008-11-04 Astenjohnson, Inc. Bulk enhancing forming fabrics
DE102006062237A1 (de) * 2006-12-22 2008-06-26 Voith Patent Gmbh Maschine zur Herstellung einer Faserstoffbahn
US8968517B2 (en) 2012-08-03 2015-03-03 First Quality Tissue, Llc Soft through air dried tissue
WO2015176063A1 (fr) 2014-05-16 2015-11-19 First Quality Tissue, Llc Lingette jetable dans les toilettes et son procédé de fabrication
WO2016077594A1 (fr) 2014-11-12 2016-05-19 First Quality Tissue, Llc Fibre de cannabis, structures cellulosiques absorbantes contenant de la fibre de cannabis et procédés de fabrication de celles-ci
MX2017006716A (es) 2014-11-24 2018-03-21 First Quality Tissue Llc Papel tisu suave producido usando una tela estructurada y prensado energetico eficiente.
US9719213B2 (en) 2014-12-05 2017-08-01 First Quality Tissue, Llc Towel with quality wet scrubbing properties at relatively low basis weight and an apparatus and method for producing same
MX2017006840A (es) 2014-12-05 2018-11-09 Proceso de fabricacion de bandas de fabricar papel por el uso de tecnologia de impresion 3d.
US10538882B2 (en) 2015-10-13 2020-01-21 Structured I, Llc Disposable towel produced with large volume surface depressions
CA3001475C (fr) 2015-10-13 2023-09-26 First Quality Tissue, Llc Serviette jetable a cavites de surface de grand volume
CN109328166A (zh) 2015-10-14 2019-02-12 上品纸制品有限责任公司 捆束产品及形成捆束产品的***和方法
KR20180134855A (ko) 2016-02-11 2018-12-19 스트럭?드 아이, 엘엘씨 제지 기계를 위한 중합체 층을 포함하는 벨트 또는 직물
US20170314206A1 (en) 2016-04-27 2017-11-02 First Quality Tissue, Llc Soft, low lint, through air dried tissue and method of forming the same
WO2018039623A1 (fr) 2016-08-26 2018-03-01 Structured I, Llc Procédé de production de structures absorbantes présentant une résistance à l'état humide, une capacité d'absorption et une souplesse élevées
MX2019002752A (es) 2016-09-12 2019-08-29 Dispositivo de formacion de un activo depositado por via humeda utilizando un tejido estructurado como hilo externo.
US11583489B2 (en) 2016-11-18 2023-02-21 First Quality Tissue, Llc Flushable wipe and method of forming the same
US10619309B2 (en) 2017-08-23 2020-04-14 Structured I, Llc Tissue product made using laser engraved structuring belt
EP3793821B1 (fr) 2018-05-15 2024-07-10 Structured I, LLC Procédé de fabrication de courroies sans fin de fabrication de papier mettant en oeuvre une technologie d'impression 3d
DE102018114748A1 (de) 2018-06-20 2019-12-24 Voith Patent Gmbh Laminierte Papiermaschinenbespannung
US11697538B2 (en) 2018-06-21 2023-07-11 First Quality Tissue, Llc Bundled product and system and method for forming the same
US11738927B2 (en) 2018-06-21 2023-08-29 First Quality Tissue, Llc Bundled product and system and method for forming the same
SE542214C2 (en) 2018-10-12 2020-03-10 Valmet Oy A tissue paper making machine and a method of operating a tissue paper making machine
US20200347556A1 (en) 2019-05-03 2020-11-05 First Quality Tissue, Llc Absorbent structures with high strength and low md stretch
CA3141469A1 (fr) 2019-05-22 2020-11-26 First Quality Tissue Se, Llc Tissu de base tisse avec des fils en sens machine et en sens travers absorbant l'energie laser et produit de tissu fabrique a l'aide de celui-ci
CA3081992A1 (fr) 2019-06-06 2020-12-06 Structured I, Llc Machine a papier qui utilise seulement un tissu structure dans la formation du papier
AT522459B1 (de) * 2020-01-30 2020-11-15 Andritz Ag Maschf Vorrichtung und verfahren zum herstellen einer faserstoffbahn
SE2051044A1 (en) * 2020-09-04 2021-10-05 Valmet Oy Crescent former for producing tissue paper
AU2021400323A1 (en) 2020-12-17 2023-07-06 First Quality Tissue, Llc Wet laid disposable absorent structures with high wet strenght and method of making the same
CA3211433A1 (fr) * 2021-02-22 2022-08-25 First Quality Tissue, Llc Systeme et procede de nettoyage de courroies et/ou de toiles synthetiques utilisees sur des machines a papier a sechage a l'air
US11976421B2 (en) 2022-06-16 2024-05-07 First Quality Tissue, Llc Wet laid disposable absorbent structures with high wet strength and method of making the same
US11952721B2 (en) 2022-06-16 2024-04-09 First Quality Tissue, Llc Wet laid disposable absorbent structures with high wet strength and method of making the same

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DE4327601C1 (de) * 1993-08-17 1995-01-05 Voith Gmbh J M Vorrichtung zum Reinigen eines umlaufenden Siebes
US5397437A (en) * 1992-04-23 1995-03-14 Valmet-Karlstad Ab Method of rebuilding a conventional tissue machine to a TAD machine
WO1996035018A1 (fr) * 1995-05-05 1996-11-07 Kimberly-Clark Worldwide, Inc. Formation decorative de papier mousseline
US5654076A (en) * 1992-07-29 1997-08-05 The Procter & Gamble Company Cellulosic fibrous structures having discrete regions with radially oriented fibers therein
DE19732879A1 (de) * 1997-07-30 1999-02-04 Sca Hygiene Paper Gmbh Mehrlagiges Sieb für den Naßbereich einer Papiermaschine und damit hergestelltes Produkt

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US6136146A (en) * 1991-06-28 2000-10-24 The Procter & Gamble Company Non-through air dried paper web having different basis weights and densities
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SE501332C2 (sv) * 1993-05-27 1995-01-16 Valmet Karlstad Ab Sätt att forma en tissuepappersbana
ATE209271T1 (de) 1995-02-24 2001-12-15 Voith Paper Patent Gmbh Reinigungsvorrichtung
DE19756422A1 (de) * 1997-12-18 1999-06-24 Voith Sulzer Papiertech Patent Maschine zur Herstellung einer Faserstoffbahn, insbesondere einer Tissue-Papierbahn
US6237644B1 (en) 1998-09-01 2001-05-29 Stewart Lister Hay Tissue forming fabrics
US6231723B1 (en) * 1999-06-02 2001-05-15 Beloit Technologies, Inc Papermaking machine for forming tissue employing an air press

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
US5397437A (en) * 1992-04-23 1995-03-14 Valmet-Karlstad Ab Method of rebuilding a conventional tissue machine to a TAD machine
US5654076A (en) * 1992-07-29 1997-08-05 The Procter & Gamble Company Cellulosic fibrous structures having discrete regions with radially oriented fibers therein
DE4327601C1 (de) * 1993-08-17 1995-01-05 Voith Gmbh J M Vorrichtung zum Reinigen eines umlaufenden Siebes
WO1996035018A1 (fr) * 1995-05-05 1996-11-07 Kimberly-Clark Worldwide, Inc. Formation decorative de papier mousseline
DE19732879A1 (de) * 1997-07-30 1999-02-04 Sca Hygiene Paper Gmbh Mehrlagiges Sieb für den Naßbereich einer Papiermaschine und damit hergestelltes Produkt

Also Published As

Publication number Publication date
CA2332478A1 (fr) 2001-07-28
DE10003685A1 (de) 2001-08-02
EP1120490A3 (fr) 2001-11-14
EP1120490B1 (fr) 2005-05-25
BR0100431B1 (pt) 2009-08-11
BR0100431A (pt) 2001-09-11
CA2332478C (fr) 2010-04-13
US6821391B2 (en) 2004-11-23
DE50010391D1 (de) 2005-06-30
US20010013399A1 (en) 2001-08-16
ATE296378T1 (de) 2005-06-15

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