EP1977037A1 - Tamis pour machine a papier - Google Patents

Tamis pour machine a papier

Info

Publication number
EP1977037A1
EP1977037A1 EP06818942A EP06818942A EP1977037A1 EP 1977037 A1 EP1977037 A1 EP 1977037A1 EP 06818942 A EP06818942 A EP 06818942A EP 06818942 A EP06818942 A EP 06818942A EP 1977037 A1 EP1977037 A1 EP 1977037A1
Authority
EP
European Patent Office
Prior art keywords
threads
paper
type
longitudinal
transverse
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
EP06818942A
Other languages
German (de)
English (en)
Other versions
EP1977037B1 (fr
Inventor
Wolfgang Heger
Klaus Fichter
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.)
Andritz Technology and Asset Management GmbH
Original Assignee
Andreas Kufferath GmbH and Co KG
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 Andreas Kufferath GmbH and Co KG filed Critical Andreas Kufferath GmbH and Co KG
Priority to PL06818942T priority Critical patent/PL1977037T3/pl
Priority to SI200631054T priority patent/SI1977037T1/sl
Publication of EP1977037A1 publication Critical patent/EP1977037A1/fr
Application granted granted Critical
Publication of EP1977037B1 publication Critical patent/EP1977037B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • D21F1/0027—Screen-cloths
    • D21F1/0036—Multi-layer screen-cloths
    • 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
    • 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
    • Y10S162/902—Woven fabric for papermaking drier section

Definitions

  • the invention relates to a paper machine wire, in particular for the sheet forming zone with a paper and a running side consisting of
  • a part of the second type transverse threads are bound by at least two longitudinal threads within a repeat.
  • Pulp suspension refers to a mixture of wood or pulp fibers, fillers, chemical auxiliaries and predominantly water.
  • This filtration process which is often called sheet formation, takes place in the sheet forming part of the wet end of the paper machine.
  • the paper fibers as well as the fillers and auxiliaries remain as a nonwoven on the paper machine screen.
  • double-screen machines preferably so-called gap or gap formers
  • the latter are characterized in that the pulp suspension is injected into a gap which is formed by two paper machine sieves.
  • the dewatering takes place at the same time through both screens, whereby the filtration process and thus the production speed of the paper machine could be significantly accelerated.
  • a fabric or papermaking fabric which largely meets these requirements is described in DE 100 30 650 C1.
  • the object of the present invention is to further improve the known papermachine fabric from its functional properties.
  • a pertinent task solves a papermaking machine with the features of claim 1 in its entirety.
  • the longitudinal threads on the running side within a running-side binding repeat each incorporate two transverse threads of the second type, the result is an improved division of the exchange or crossing points for L Lucassfä- the so that marks in the paper to be produced largely avoided are.
  • the pertinent integration for the said transverse threads by means of the longitudinal threads is done without these changing between the pairs of embedded transverse threads on the paper side.
  • the claimed shot ratio of the thread system on the paper side to the thread system on the running side leads to a largely self-contained lower or running side with good drainage performance and annoying operating noise and wear due to increased abrasion of the running side transverse threads is thus avoided.
  • the solution according to the invention it is also possible to reduce the transverse threads on the running side in diameter, so that it can not come to the formation of so-called Wasserschleppen; a phenomenon that is caused when the screen after leaving the sheet forming zone by the dewatering elements can not be emptied or insufficient and the residual water is thrown on a deflection roller of the paper machine by the centrifugal forces arising from the tissue.
  • Wasserschleppen a phenomenon that is caused when the screen after leaving the sheet forming zone by the dewatering elements can not be emptied or insufficient and the residual water is thrown on a deflection roller of the paper machine by the centrifugal forces arising from the tissue.
  • the fabric according to the invention is particularly suitable for very fast-moving paper machines and for paper production in the graphic field, which requires very high production qualities.
  • the marking tendency of the upper fabric is preferably further reduced by reducing the number of alternating or crossing points for the longitudinal threads relative to the number of upper shots used in the form of the transverse threads of the first type or the number of upper shots in the form the transverse threads of the first kind is increased between adjacent warp change points. Furthermore, there is the possibility of reducing the tendency to mark when the fabric is being carried out, to further remove the position of the warp change points between two adjacent pairs of warps.
  • slightly thinner running side transverse threads of the second type are introduced within a repeat by the changed shot ratio. This can also reduce the sieve thickness, which reduces the risk of unwanted water drag.
  • the claimed sieve also allows an increase in the permeability and thus the drainage performance at a comparable number of shots on the top or the paper side of the screen, due to the special arrangement of the integration of the running side shots in the form of transverse threads of the second type.
  • Figure 1 shows the course of two warp threads of a Siebles in the prior art according to DE 100 30 650 CI.
  • FIG. 2 shows a chain progression representation corresponding to FIG. 1 for the solution according to the invention via a repeat
  • FIG. 3 shows the course of the warp threads for a complete repeat of the binding according to the invention
  • 4 shows a complete binding repeat for the paper side, wherein the running side shots are omitted for the sake of clarity
  • FIG. 5 shows a complete weave repeat of the running side with a view from above corresponding to the sectional view A-A in FIG. 2.
  • warp threads are also referred to as machine direction threads (MD threads) and also as longitudinal thread or as lower and upper chains.
  • MD threads machine direction threads
  • CMD threads indication cross machine direction threads
  • both drawings were to Figures 1 and 2 with the same number of 24 paper-side shots or CMD threads 1 to 24 executed. The following significant differences are recognizable:
  • the distances between the sub-shots become smaller, whereby the sum of the distances remains the same (same material filling density).
  • the uniformity of the underside increases so far in the binding according to the invention.
  • the chain located in the lower tissue binds with two lower shots between two warp points.
  • the sub-weave weave in the solution according to the invention is realized in such a way that a high degree of openness is achieved, i. H. the sieve according to the invention has an improved drainage performance.
  • FIG. 3 shows a complete weave repeat of the embodiment according to the invention in the form of warp courses or courses of the MD threads.
  • the sections of FIGS. 3 a to 3 h lie along each warp thread pair in FIG. 4 starting from the left side by side. Otherwise, FIG. 3a corresponds to the illustration according to FIG. 2.
  • the paper side of the fabric according to the invention is shown.
  • the upper fabric consists of a plain weave which is formed alternately by two warp threads (longitudinal threads 41 to 56).
  • FIG. 5 further shows the lower fabric in the top view, that is to say a section along the line A - A in FIG. 2.
  • the special embodiment of the underside bindings which is embodied such that the two outer warp threads of two warp pairs share two Include deficits and in between two shots are not involved. This ensures that the warp threads located in the lower fabric are pulled under the warp threads located in the upper fabric and thus open areas for a good drainage performance.
  • the warp threads 41 and 42 thus form a pair of longitudinal threads for creating the paper side (compare Fig. 3a). When the warp thread 41 binds on the running side, the warp thread 42 is on the overlying paper side and vice versa.
  • the adjacent pair of warp threads 43 and 44 see Fig.

Landscapes

  • Paper (AREA)
  • Gloves (AREA)
  • Materials For Medical Uses (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
EP06818942A 2006-01-11 2006-12-01 Tamis pour machine a papier Active EP1977037B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL06818942T PL1977037T3 (pl) 2006-01-11 2006-12-01 Sito maszyny papierniczej
SI200631054T SI1977037T1 (sl) 2006-01-11 2006-12-01 Sito za papirni stroj

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006001388A DE102006001388A1 (de) 2006-01-11 2006-01-11 Papiermaschinensieb
PCT/EP2006/011541 WO2007087852A1 (fr) 2006-01-11 2006-12-01 Tamis pour machine a papier

Publications (2)

Publication Number Publication Date
EP1977037A1 true EP1977037A1 (fr) 2008-10-08
EP1977037B1 EP1977037B1 (fr) 2011-04-06

Family

ID=37744437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06818942A Active EP1977037B1 (fr) 2006-01-11 2006-12-01 Tamis pour machine a papier

Country Status (13)

Country Link
US (1) US7406985B2 (fr)
EP (1) EP1977037B1 (fr)
KR (1) KR101251310B1 (fr)
CN (1) CN101351592B (fr)
AT (1) ATE504691T1 (fr)
BR (1) BRPI0620975B1 (fr)
DE (2) DE102006001388A1 (fr)
DK (1) DK1977037T3 (fr)
ES (1) ES2362625T3 (fr)
PL (1) PL1977037T3 (fr)
PT (1) PT1977037E (fr)
SI (1) SI1977037T1 (fr)
WO (1) WO2007087852A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2579591C (fr) * 2004-09-30 2009-09-01 Roger Danby Toile de formation double couche presentant une resistance de plan central elevee
DE102006001388A1 (de) * 2006-01-11 2007-07-12 Andreas Kufferath Gmbh & Co. Kg Papiermaschinensieb
DE102010017055A1 (de) 2010-05-21 2011-11-24 Andritz Technology And Asset Management Gmbh Blattbildungssieb
FI128025B (en) 2017-03-24 2019-08-15 Valmet Technologies Oy industrial Textiles

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE441016B (sv) * 1982-04-26 1985-09-02 Nordiskafilt Ab Formeringsvira for pappers-, cellulosa- eller liknande maskiner
DE3615304A1 (de) * 1986-05-06 1987-11-12 Wangner Gmbh Co Kg Hermann Bespannung fuer den blattbildungsteil einer papiermaschine
DE3923938A1 (de) * 1989-07-19 1991-01-31 Oberdorfer Fa F Formiergewebe fuer die nasspartie einer papiermaschine
DE3938159A1 (de) * 1989-11-16 1991-05-23 Oberdorfer Fa F Verbundgewebe fuer papiermaschinensiebe
US5421374A (en) * 1993-10-08 1995-06-06 Asten Group, Inc. Two-ply forming fabric with three or more times as many CMD yarns in the top ply than in the bottom ply
GB9604602D0 (en) * 1996-03-04 1996-05-01 Jwi Ltd Composite papermaking fabric with paired weft binder yarns
US5865219A (en) * 1997-07-31 1999-02-02 Asten, Inc. Double layer papermaking fabric having a high stability weave
US5881764A (en) * 1997-08-01 1999-03-16 Weavexx Corporation Multi-layer forming fabric with stitching yarn pairs integrated into papermaking surface
US6334467B1 (en) * 1999-12-08 2002-01-01 Astenjohnson, Inc. Forming fabric
DE10030650C1 (de) * 2000-06-29 2002-05-29 Kufferath Andreas Gmbh Papiermaschinensieb
DE10123204C2 (de) * 2001-05-12 2003-03-27 Kufferath Andreas Gmbh Papiermaschinensieb
US6896009B2 (en) * 2003-03-19 2005-05-24 Weavexx Corporation Machine direction yarn stitched triple layer papermaker's forming fabrics
DE102006001388A1 (de) * 2006-01-11 2007-07-12 Andreas Kufferath Gmbh & Co. Kg Papiermaschinensieb

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007087852A1 *

Also Published As

Publication number Publication date
DK1977037T3 (da) 2011-07-04
US7406985B2 (en) 2008-08-05
PL1977037T3 (pl) 2011-09-30
DE502006009284D1 (de) 2011-05-19
US20070157988A1 (en) 2007-07-12
KR20080107371A (ko) 2008-12-10
BRPI0620975B1 (pt) 2016-09-27
BRPI0620975A2 (pt) 2011-11-29
CN101351592B (zh) 2011-11-16
PT1977037E (pt) 2011-06-07
ATE504691T1 (de) 2011-04-15
WO2007087852A1 (fr) 2007-08-09
EP1977037B1 (fr) 2011-04-06
SI1977037T1 (sl) 2011-08-31
ES2362625T3 (es) 2011-07-08
CN101351592A (zh) 2009-01-21
DE102006001388A1 (de) 2007-07-12
KR101251310B1 (ko) 2013-04-09

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