US3840429A - Anti-rewet membrane for an extended press nip system - Google Patents

Anti-rewet membrane for an extended press nip system Download PDF

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Publication number
US3840429A
US3840429A US00278600A US27860072A US3840429A US 3840429 A US3840429 A US 3840429A US 00278600 A US00278600 A US 00278600A US 27860072 A US27860072 A US 27860072A US 3840429 A US3840429 A US 3840429A
Authority
US
United States
Prior art keywords
web
felt
liquid
traveling
accordance
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.)
Expired - Lifetime
Application number
US00278600A
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English (en)
Inventor
L Busker
R Daane
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.)
Beloit Corp
Original Assignee
Beloit Corp
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 Beloit Corp filed Critical Beloit Corp
Priority to US00278600A priority Critical patent/US3840429A/en
Priority to GB2951673A priority patent/GB1426084A/en
Priority to CA175,552A priority patent/CA981955A/en
Priority to ZA734823A priority patent/ZA734823B/xx
Priority to AU58582/73A priority patent/AU5858273A/en
Priority to JP48084196A priority patent/JPS5138806B2/ja
Priority to DE2338414A priority patent/DE2338414C3/de
Priority to SE7310581A priority patent/SE389352B/xx
Priority to BR5983/73A priority patent/BR7305983D0/pt
Priority to AR249458A priority patent/AR202191A1/es
Priority to NL7310813A priority patent/NL7310813A/xx
Priority to IT27618/73A priority patent/IT992865B/it
Priority to FR7329086A priority patent/FR2195723B1/fr
Application granted granted Critical
Publication of US3840429A publication Critical patent/US3840429A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/24—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using an endless pressing band
    • 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
    • D21F3/0209—Wet presses with extended press nip
    • 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
    • D21F3/029—Wet presses using special water-receiving belts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/90—Papermaking press felts

Definitions

  • ABSTRACT A press mechanism and method for removing liquid from a traveling fibrous web of the type such as formed in a paper making machine and received from the fourdrinier section with the press providing an extended nip formed between a pair of traveling belts or between a belt and a roll with pressure applied to the web through the belts by hydraulic chambers or bythe tension of a belt against the roll.
  • a felt receives the liquid from the web, and a thin porous sheet of a predetermined porosity is placed between the web and felt to inhibit the flow of water between. The compressing time exceeds the release time so that a greater amount of water will flow from the web to the felt than will return to the web.
  • the invention relates to improvements in press mechanisms such as used in paper making machines wherein a pressure is applied to a traveling web to squeeze liquid therefrom and more particularly to such a structure wherein'rewetting, i.e., the return of water from the felt to the web is appreciably reduced.
  • the paper web is passed through the nip of the press with a felt and water is pressed from the web into the felt during the ingoing or converging region of the press rolls. During the diverging or outgoing region, some of the expressed water transfers back from the felt to the paper web. This transfer of waterfrom the felt to the paper in the expanding nip region is termed rewetting or rewet.
  • the driving force moving the water from the felt to the paper in rewetting is generally believed to be expanding voids which develop a vacuum in the expanding paper along with a capillary holding force favoring transfer to the paper.
  • the time of compression is nearly equal to the time of expansion inasmuch as the ingoing nip is equal in width to the outgoing nip.
  • the present invention employs the principles of an extended nip presswhich offers the possibility of accomplishing a difference in the time period of compression relative to the time period for expansion.
  • the time period of compression will be longer than the interval for expansion by a factor of or'more.
  • rewetting is a function of time. That is, it is a flow phenomena and advantage can be taken of the difference of time of compression and the time of expansion to control the amount of rewet that occurs. This is accomplished by controlling or deterring the speed of travel of the liquid between the web and the felt so that by providing an adequate compression time even with a retarded flow of water from the web to the felt, adequate pressing action of the press and drying of the web will occur, yet the flow of water will be impeded sufficientlyso that rewetting is substantially and appreciably reduced.
  • the present invention relates to improvements for the press sections ofa paper making machine.
  • the web usually arrives at the press section with about 80 percent wet basis moisture (ratio of water to fiber plus water) and leaves the press section with approximately 60 percent moisture, with the remaining moisture having to be removed by thermal evaporation in the dryer section as the web passes over a series of heated dryer drums.
  • the present invention employs a principle which may be referred to as the extended nip concept wherein the time the web is subjected to a pressing action is greatly extended, i.e., a single pressing is provided having a residence time which exceeds thatof the time of the web I ample, the effects of the moisture in the felt which travels with theweb are small. It has been found further that the length of time that the web is in thenip, in other words the residence in the nip, can have a significant effect in overcoming the difficulties created by the flow properties of the water within the sheet.
  • the instant invention relates to avoiding disadvantages encountered with high speed press nips of the conventional type used in most commercial applications today, and provides a substantial increase in residence time within a press nip to allow time for flow to occur within the mat and for the hydraulic pressure to'dissipate.
  • the principles of extended nip or extended time pressing are further reviewed in the aforementioned copending application.
  • FIG. 1 is a somewhat schematic showing of a structure embodying the principles of the present invention
  • FIG. 2 is a graph illustrating the relationship of compression time to expansion time in an extended nip press in accordance with the invention
  • FIGS. 3 through 5 show schematically three additional separate embodiments of the invention.
  • FIG. 6 is a schematic side elevational view of another form of the invention.
  • a liquid containing web such as paper coming from a fourdrinier wire is shown at W passing through the nip of an extended nip press.
  • the web passes through the nip with a porous felt F which receives water pressed from the web.
  • the felt is formed in the loop and normally will have felt dewatering means which reduces'moisture although its moisture content has been found to not be critical.
  • thin porous sheet S is passed between the web and'the felt to retard or control thetransfer of water between the felt and the paper.
  • The. sheet is in the form of a belt and is provided with suitable guide rolls. This sheet may be of various materials such as porous stainless steel or plastic. While the belt retards the flowof water, since the compression time is substantially longer than the release or expansion time, adequate water flows through the sheet to the felt for dewatering, but the retardation of the flow of water will greatly reduce wetting that occurs during theexpansion time.
  • FIG. 2 shows the time pressure relationship as the web passes through the pressing zone. During the period indicated by the portion of the curve 26, the web is under pressure. As it leaves the pressure zone, pressure drops off as indicated by the expansion portion of the curve 27, with expansion beginning at the location of the broken line 28.
  • the period of time of compression is necessarily longer than the period of time of expansion, and preferably substantially longer having a ratio of to one or greater.
  • the permeable belt could be a porous stainless steel belt of .010 inches thickness, for example.
  • Other exam ples would be a low permeability surface covering on the felt or small pore size plastic belts.
  • the permeability can be achieved by porosity of the belt material or by perforation or fabrication of a belt.
  • FIG. 3 illustrates another structural arrangement which may be used wherein the extended nip is provided by passing a web through a nip formed between two surfaces provided by a backing roll 30 and a tensioned nonporous belt 32.
  • the belt is provided with tensioning means not shown, and wraps an arc of the roll 30 so that the pressingzone extends from the time of contact of the belt 32 with the web and the roll until it separates from the web on the roll.
  • the paper web is shown at W, and a felt F is passed over the surface of the roll 30.
  • the roll may be provided with grooves. shown schematically at 34 to aid in the flow of water from the web into the felt and the grooves are necessarily made sufficiently small so as'to avoid marking of the paper web W.
  • the permeable barrier sheet S is positioned between the felt and the paper, and as in the structure of FIG. 1, inhibits the flow of water.
  • the length of residence time in the nip is sufficiently long to permit adequate flow of water into the felt.
  • the felt is constructed of a nature so that it can withstand tension and is used for applying the surface pressure to the web.
  • the felt F is provided with tensioning means shown by the arrowed lines 34a to pull up taut over an arc of wrap on the roll 30'.
  • the paper web W is wrapped directly on the smooth outer surface of the roll 30.
  • a permeable barrier sheet S passes between the web and the felt.
  • the barrier sheet has the same properties of porosity as above described in connection with the structures of FIGS. 1 and 3.
  • FIG. 6 Another form of structure contemplated is illustrated in FIG. 6 wherein a roll 32a is wrapped by belt 34b to perform an extended nip pressing zone with the web W passing through the zone.
  • a felt 33 which is of a critical construction in that it has a flow-resistant" composition.
  • a flow-resistant shall mean a felt composition having a resistance to water flow, or in other words a low permeability of a degree such that the felt would not be feasible for use with a conventional twin roll press.
  • a felt for use in a conventional press section of the paper making machine must have a certain degree.
  • a further structure which is contemplated is where the permeable sheet S, such as shown in FIGS, 1, 3 and 4 is hydrophobic;
  • the felt will be of a hydrophilic nature.
  • the hydrophobic characteristic of the sheet S will resist the flow of water therethrough but over the time afforded in the extended nip the water will be forced through the hydrophobic sheet.
  • the hydrophobic nature of the sheet will prevent the return of water from the felt to the sheet and the hydrophilic nature of the felt will retain the wa- 'ter.
  • the holes will have a diameter of .005 inches with the spacing between the holes ranging frorn .01 inches to .05 inches.
  • Such a sheet would have the effect of introducing flow resistance into the system, and would further have the effect of minimizing the fluid film remaining next to the paper web after it is compressed, limiting-that film approximately to the water which could reside in the small sparsely spaced holes.
  • the felt has a hydrophilic characteristic, and in certain circumstances, this should be enhanced by the treatment of the felt with surface active agents or wetting agents.
  • a permeability for wet felt which is preferred is that having an air-permeability at l/2 inch water pressure difference less than 10 cubic feet per minute per square foot.
  • a press mechanism for removing liquid from a traveling'fibrous web which comprises,
  • an extended press nip having opposed pressing surfaces for receiving a traveling web and applying pressing force'to the web'uniformly thereacross with the web being released on the offrunning side of the nip
  • a traveling felt means passing through the nip with the web for receiving moisture pressed from the web
  • a press mechanism for-removing'liq'uid from a traveling fibrous web constructed in accordance with claim 2 wherein said felt means is hydrophilic and said porous sheet has a hydrophobic characteristic.
  • a press mechanism for removing liquid from a traveling fibrous web constructed in accordance with claim 2 wherein said felt means has been treated with a wettingagent.
  • a press mechanism for removing liquid from a traveling fibrous web constructed in accordance with claim 2 wherein said porous sheet is constructed of polytetrafluoroethylene.
  • a press mechanism for removing liquid from a traveling fibrous web constructed in accordance with claim 2 wherein said porous sheet is coated with a hydrophobic material.
  • Apress mechanism for removing liquid from a travelingfibrous web constructed in accordance with claim 2 wherein said porous sheet is integral with the felt and forms a layer between the web and the more absorbent outer portion of the felt.
  • a press mechanism for removing liquid from a traveling fibrous web constructed in accordance with claim 2 wherein said pressing surfaces are formed by a pair of traveling belts each having a fluid backing pressure chamber for transmitting fluid pressure to the web through the belts.
  • a press mechanism for removing liquid from a traveling fibrous web constructed in accordance with claim 2 wherein said sheet is formed of a stainless steel.
  • a press mechanism for removing liquid from a traveling fibrous web constructed in accordance with claim 2 wherein said sheet is formed of a plastic material.
  • a press mechanism for removing liquid from a traveling fibrous web constructed in accordance with claim 2 wherein the porous sheet has permeability on 5 20 to one.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Drying Of Solid Materials (AREA)
  • Treatment Of Fiber Materials (AREA)
US00278600A 1972-08-07 1972-08-07 Anti-rewet membrane for an extended press nip system Expired - Lifetime US3840429A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US00278600A US3840429A (en) 1972-08-07 1972-08-07 Anti-rewet membrane for an extended press nip system
GB2951673A GB1426084A (en) 1972-08-07 1973-06-21 Removal of liquid from a travelling fibrous web
CA175,552A CA981955A (en) 1972-08-07 1973-07-03 Press device for a paper machine
ZA734823A ZA734823B (en) 1972-08-07 1973-07-16 Anti rewet membrane
AU58582/73A AU5858273A (en) 1972-08-07 1973-07-26 Extended nip-wet press for paper webs
JP48084196A JPS5138806B2 (enrdf_load_stackoverflow) 1972-08-07 1973-07-27
DE2338414A DE2338414C3 (de) 1972-08-07 1973-07-28 Naßpresse mit verlängertem Preßspalt zur Entwässerung einer Faserbahn
SE7310581A SE389352B (sv) 1972-08-07 1973-08-01 Pressmekanism for att avlegsna vetska fran en rorlig fibermaterialbana.
BR5983/73A BR7305983D0 (pt) 1972-08-07 1973-08-06 Aperfeicoamentos em processos para prensar liquido de uma textura fibrosa movel e em mecanismo de prensar
AR249458A AR202191A1 (es) 1972-08-07 1973-08-06 Mecanismo de prensado para extraer liquido de una cinta viajera fibrosa
NL7310813A NL7310813A (enrdf_load_stackoverflow) 1972-08-07 1973-08-06
IT27618/73A IT992865B (it) 1972-08-07 1973-08-07 Procedimento e dispositivo di pres sa per evitare il reinumidimento di un nastro di carta durante la produzione
FR7329086A FR2195723B1 (enrdf_load_stackoverflow) 1972-08-07 1973-08-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00278600A US3840429A (en) 1972-08-07 1972-08-07 Anti-rewet membrane for an extended press nip system

Publications (1)

Publication Number Publication Date
US3840429A true US3840429A (en) 1974-10-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00278600A Expired - Lifetime US3840429A (en) 1972-08-07 1972-08-07 Anti-rewet membrane for an extended press nip system

Country Status (13)

Country Link
US (1) US3840429A (enrdf_load_stackoverflow)
JP (1) JPS5138806B2 (enrdf_load_stackoverflow)
AR (1) AR202191A1 (enrdf_load_stackoverflow)
AU (1) AU5858273A (enrdf_load_stackoverflow)
BR (1) BR7305983D0 (enrdf_load_stackoverflow)
CA (1) CA981955A (enrdf_load_stackoverflow)
DE (1) DE2338414C3 (enrdf_load_stackoverflow)
FR (1) FR2195723B1 (enrdf_load_stackoverflow)
GB (1) GB1426084A (enrdf_load_stackoverflow)
IT (1) IT992865B (enrdf_load_stackoverflow)
NL (1) NL7310813A (enrdf_load_stackoverflow)
SE (1) SE389352B (enrdf_load_stackoverflow)
ZA (1) ZA734823B (enrdf_load_stackoverflow)

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172910A (en) * 1978-03-28 1979-10-30 Asten Group, Inc. Coating of papermaking fabrics
DE2935630A1 (de) * 1978-09-05 1980-03-20 Beloit Corp Weiterbildung einer feuchtpresse mit erweiterten pressflaechen
US4425190A (en) 1981-05-26 1984-01-10 Beloit Corporation Extended nip shoe for a nip in a papermaking machine
US4428797A (en) 1981-05-26 1984-01-31 Beloit Corporation Extended nip shoe for a nip in a papermaking machine
JPS5976993A (ja) * 1982-07-13 1984-05-02 エ−・ア−ルストロム・オサキ−テイオ 大型ニップ・プレス
DE3410172A1 (de) * 1983-03-23 1984-09-27 Valmet Oy, Helsinki Langspaltpresse einer papiermaschine
US4584058A (en) * 1983-05-20 1986-04-22 Valmet Oy Method and apparatus for dewatering a fibrous web
US4738752A (en) * 1986-08-12 1988-04-19 Beloit Corporation Heated extended nip press apparatus
US5043046A (en) * 1989-03-22 1991-08-27 Valmet Paper Machinery Inc. Extended nip-press
US5082533A (en) * 1990-04-10 1992-01-21 Beloit Corporation Heated extended nip press with porous roll layers
US5092962A (en) * 1989-03-30 1992-03-03 Valmet Paper Machinery Inc. Hot-pressing and drying device
WO1994026388A1 (en) * 1993-05-14 1994-11-24 Ingersoll-Rand Company Anti-rewet deck for press rolls
US5580423A (en) * 1993-12-20 1996-12-03 The Procter & Gamble Company Wet pressed paper web and method of making the same
US5776307A (en) * 1993-12-20 1998-07-07 The Procter & Gamble Company Method of making wet pressed tissue paper with felts having selected permeabilities
US5795440A (en) * 1993-12-20 1998-08-18 The Procter & Gamble Company Method of making wet pressed tissue paper
US5830316A (en) * 1997-05-16 1998-11-03 The Procter & Gamble Company Method of wet pressing tissue paper with three felt layers
US5855739A (en) * 1993-12-20 1999-01-05 The Procter & Gamble Co. Pressed paper web and method of making the same
US5861082A (en) * 1993-12-20 1999-01-19 The Procter & Gamble Company Wet pressed paper web and method of making the same
US5897745A (en) * 1994-06-29 1999-04-27 The Procter & Gamble Company Method of wet pressing tissue paper
US5972813A (en) * 1997-12-17 1999-10-26 The Procter & Gamble Company Textured impermeable papermaking belt, process of making, and process of making paper therewith
US6103062A (en) * 1998-10-01 2000-08-15 The Procter & Gamble Company Method of wet pressing tissue paper
US6368463B1 (en) * 1999-01-19 2002-04-09 Metso Paper Inc. Arrangement for adjusting width of fibre web
EP1225272A1 (en) * 2001-01-17 2002-07-24 Ichikawa Co.,Ltd. Shoe press belt and manufacturing method
US6451171B1 (en) 2000-12-13 2002-09-17 Metso Paper Karlstad Ab Fabric dewatering device and method
US6547924B2 (en) 1998-03-20 2003-04-15 Metso Paper Karlstad Ab Paper machine for and method of manufacturing textured soft paper
US6592636B1 (en) 2000-11-28 2003-07-15 Albany International Corp. Flow control within a press fabric using batt fiber fusion methods
US20030194930A1 (en) * 2000-11-28 2003-10-16 Joyce Michael J. Flow control within a press fabric using batt fiber fusion methods
WO2006047136A1 (en) * 2004-10-21 2006-05-04 Albany International Corp. Sacrificial recoverable displacing agent for improved paper dewatering
US20080005877A1 (en) * 2006-07-05 2008-01-10 Laird Deborah A System, apparatus, and method of reducing production loss having a counterband
US20080176690A1 (en) * 2007-01-18 2008-07-24 Lefkowitz Leonard R Anti-rewet transfer belt
US20140298673A1 (en) * 2002-01-24 2014-10-09 Voith Patent Gmbh Method and an apparatus for manufacturing a three-dimensional surface structure web
CN110983850A (zh) * 2019-12-28 2020-04-10 合肥宏图彩印有限公司 一种瓦楞纸生产用脱水装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT351354B (de) * 1978-02-10 1979-07-25 Andritz Ag Maschf Einrichtung zur entwaesserung von faserstoff- bahnen
ZA81676B (en) * 1980-03-07 1982-08-25 Albany Int Corp Dewatering press
DE3705241A1 (de) * 1986-12-24 1988-07-07 Escher Wyss Gmbh Verfahren zur mechanisch-thermischen entwaesserung einer faserstoffbahn
WO1991008339A1 (en) * 1989-11-27 1991-06-13 Beloit Corporation A press section apparatus
DE4138788C2 (de) * 1991-11-26 1995-05-18 Escher Wyss Gmbh Vorrichtung zur Entwässerung einer Faserstoffbahn
EP0803604B1 (de) * 1996-04-25 2001-04-11 Voith Paper Patent GmbH Nasspresse
US7128810B2 (en) * 2002-10-10 2006-10-31 Albany International Corp. Anti-rewet press fabric

Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172910A (en) * 1978-03-28 1979-10-30 Asten Group, Inc. Coating of papermaking fabrics
DE2935630A1 (de) * 1978-09-05 1980-03-20 Beloit Corp Weiterbildung einer feuchtpresse mit erweiterten pressflaechen
US4425190A (en) 1981-05-26 1984-01-10 Beloit Corporation Extended nip shoe for a nip in a papermaking machine
US4428797A (en) 1981-05-26 1984-01-31 Beloit Corporation Extended nip shoe for a nip in a papermaking machine
JPS5976993A (ja) * 1982-07-13 1984-05-02 エ−・ア−ルストロム・オサキ−テイオ 大型ニップ・プレス
US4492611A (en) * 1982-07-13 1985-01-08 A. Ahlstrom Osakeyhtio Extended nip press with movable sealing strips
DE3410172C2 (de) * 1983-03-23 1995-11-09 Valmet Paper Machinery Inc Langspaltpresse einer Papiermaschine
DE3410172A1 (de) * 1983-03-23 1984-09-27 Valmet Oy, Helsinki Langspaltpresse einer papiermaschine
US4584058A (en) * 1983-05-20 1986-04-22 Valmet Oy Method and apparatus for dewatering a fibrous web
US4738752A (en) * 1986-08-12 1988-04-19 Beloit Corporation Heated extended nip press apparatus
US5043046A (en) * 1989-03-22 1991-08-27 Valmet Paper Machinery Inc. Extended nip-press
US5092962A (en) * 1989-03-30 1992-03-03 Valmet Paper Machinery Inc. Hot-pressing and drying device
US5164047A (en) * 1989-03-30 1992-11-17 Valmet Paper Machinery Inc. Hot-pressing method
US5082533A (en) * 1990-04-10 1992-01-21 Beloit Corporation Heated extended nip press with porous roll layers
WO1994026388A1 (en) * 1993-05-14 1994-11-24 Ingersoll-Rand Company Anti-rewet deck for press rolls
US5470471A (en) * 1993-05-14 1995-11-28 Ingersoll-Rand Company Anti-rewet deck for press rolls
US5855739A (en) * 1993-12-20 1999-01-05 The Procter & Gamble Co. Pressed paper web and method of making the same
US5904811A (en) * 1993-12-20 1999-05-18 The Procter & Gamble Company Wet pressed paper web and method of making the same
US5776307A (en) * 1993-12-20 1998-07-07 The Procter & Gamble Company Method of making wet pressed tissue paper with felts having selected permeabilities
US5795440A (en) * 1993-12-20 1998-08-18 The Procter & Gamble Company Method of making wet pressed tissue paper
US5637194A (en) * 1993-12-20 1997-06-10 The Procter & Gamble Company Wet pressed paper web and method of making the same
US5846379A (en) * 1993-12-20 1998-12-08 The Procter & Gamble Company Wet pressed paper web and method of making the same
US5580423A (en) * 1993-12-20 1996-12-03 The Procter & Gamble Company Wet pressed paper web and method of making the same
US5861082A (en) * 1993-12-20 1999-01-19 The Procter & Gamble Company Wet pressed paper web and method of making the same
US5897745A (en) * 1994-06-29 1999-04-27 The Procter & Gamble Company Method of wet pressing tissue paper
US6051105A (en) * 1997-05-16 2000-04-18 The Procter & Gamble Company Method of wet pressing tissue paper with three felt layers
US5830316A (en) * 1997-05-16 1998-11-03 The Procter & Gamble Company Method of wet pressing tissue paper with three felt layers
US5972813A (en) * 1997-12-17 1999-10-26 The Procter & Gamble Company Textured impermeable papermaking belt, process of making, and process of making paper therewith
US6547924B2 (en) 1998-03-20 2003-04-15 Metso Paper Karlstad Ab Paper machine for and method of manufacturing textured soft paper
US6103062A (en) * 1998-10-01 2000-08-15 The Procter & Gamble Company Method of wet pressing tissue paper
US6368463B1 (en) * 1999-01-19 2002-04-09 Metso Paper Inc. Arrangement for adjusting width of fibre web
US6592636B1 (en) 2000-11-28 2003-07-15 Albany International Corp. Flow control within a press fabric using batt fiber fusion methods
US20030194930A1 (en) * 2000-11-28 2003-10-16 Joyce Michael J. Flow control within a press fabric using batt fiber fusion methods
US6451171B1 (en) 2000-12-13 2002-09-17 Metso Paper Karlstad Ab Fabric dewatering device and method
EP1225272A1 (en) * 2001-01-17 2002-07-24 Ichikawa Co.,Ltd. Shoe press belt and manufacturing method
EP1788152A1 (en) * 2001-01-17 2007-05-23 Ichikawa Co.,Ltd. Shoe press belt and manufacturing method
US20140298673A1 (en) * 2002-01-24 2014-10-09 Voith Patent Gmbh Method and an apparatus for manufacturing a three-dimensional surface structure web
WO2006047136A1 (en) * 2004-10-21 2006-05-04 Albany International Corp. Sacrificial recoverable displacing agent for improved paper dewatering
US20060144547A1 (en) * 2004-10-21 2006-07-06 Hawes John M Sacrificial recoverable displacing agent for improved paper dewatering
RU2367738C2 (ru) * 2004-10-21 2009-09-20 Олбэни Интернэшнл Корп. Расходуемое регенерируемое вытесняющее вещество для улучшенного обезвоживания бумаги
US20080005877A1 (en) * 2006-07-05 2008-01-10 Laird Deborah A System, apparatus, and method of reducing production loss having a counterband
US7500295B2 (en) * 2006-07-05 2009-03-10 American Linc, Llc System, apparatus, and method of reducing production loss having a counterband
US20080176690A1 (en) * 2007-01-18 2008-07-24 Lefkowitz Leonard R Anti-rewet transfer belt
CN110983850A (zh) * 2019-12-28 2020-04-10 合肥宏图彩印有限公司 一种瓦楞纸生产用脱水装置
CN110983850B (zh) * 2019-12-28 2021-12-14 合肥宏图彩印有限公司 一种瓦楞纸生产用脱水装置

Also Published As

Publication number Publication date
JPS5138806B2 (enrdf_load_stackoverflow) 1976-10-23
DE2338414A1 (de) 1974-02-21
AU5858273A (en) 1975-01-30
SE389352B (sv) 1976-11-01
AR202191A1 (es) 1975-05-23
DE2338414C3 (de) 1979-04-26
FR2195723A1 (enrdf_load_stackoverflow) 1974-03-08
FR2195723B1 (enrdf_load_stackoverflow) 1980-05-30
BR7305983D0 (pt) 1974-07-18
ZA734823B (en) 1974-06-26
CA981955A (en) 1976-01-20
GB1426084A (en) 1976-02-25
DE2338414B2 (de) 1978-08-10
JPS4957105A (enrdf_load_stackoverflow) 1974-06-03
NL7310813A (enrdf_load_stackoverflow) 1974-02-11
IT992865B (it) 1975-09-30

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