EP2004903A1 - Upper side, in particular paper side, and papermaking-machine fabric - Google Patents
Upper side, in particular paper side, and papermaking-machine fabricInfo
- Publication number
- EP2004903A1 EP2004903A1 EP06841046A EP06841046A EP2004903A1 EP 2004903 A1 EP2004903 A1 EP 2004903A1 EP 06841046 A EP06841046 A EP 06841046A EP 06841046 A EP06841046 A EP 06841046A EP 2004903 A1 EP2004903 A1 EP 2004903A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- threads
- longitudinal
- transverse
- thread
- fabric
- 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
Links
- 239000004744 fabric Substances 0.000 title claims description 48
- 238000007667 floating Methods 0.000 claims description 4
- 238000009998 heat setting Methods 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 abstract 2
- 239000000835 fiber Substances 0.000 description 4
- 239000011295 pitch Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000002671 adjuvant Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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
- D21F1/0027—Screen-cloths
- D21F1/0036—Multi-layer screen-cloths
Definitions
- the invention relates to the construction of an upper side, in particular paper side for a multi-layered papermaking fabric and a pertinent papermaking fabric, in particular provided for the use of a wet end in a paper machine.
- the formation of the paper sheet is carried out depending on the type of machine on one or between two paper machine screens.
- a suspension consisting of about 1% of fiber or auxiliaries and 99% of water is applied uniformly to the paper machine screen and the solid constituents contained are separated from the water by a filtration process.
- a solids content or dry content 20 to 22% is achieved.
- the paper thus produced is already so strong that it can be transferred to the press section and dried further.
- modern paper machines such as the Gap
- the sheet forming screens While a number of paper technological parameters, such as whiteness, tensile strength and elongation mainly by the raw and Adjuvants are determined, the sheet forming screens have a significant influence on the basis weight and thickness profile, the fiber retention as well as the visible in the paper screen mark. Especially in the field of graphic papers, the quality requirements are high. The pertinent quality requirements stand in the way that increasingly inferior raw materials such as waste paper are used and that one tries by lowering the basis weight, raw materials and thus to save costs.
- the pertinent three-ply composite fabrics consist of at least two separate layers of fabric, of which the upper is characterized by the plain weave and which is suitably connected to the other layers of fabric.
- To connect the layers together in the known solutions serve separate binding threads, which can form both longitudinal threads and transverse yarns.
- the pertinent connection has also been made by incorporating longitudinal and transverse thread systems of one fabric into the other fabric by transferring said threads from one layer of fabric to the next, and vice versa.
- the individual layers of fabric connected to one another via binding threads are frequently subjected to bending during travel in the paper machine, whereby the one layer undergoes an extension relative to a neutral phase in the middle of the screen, wherein at the same time the fabric layer opposite the neutral phase is compressed , It then comes regularly to a relaxation of the tissue connection, which can lead to the position shift in the advanced stage with occurring in extreme cases separation of the fabric layers, which leads to the becoming unusable of the papermaking fabric.
- the present invention seeks to further improve the known solutions that a top or paper side of a papermaking fabric is formed, which realizes the advantages of a plain weave and yet a simple compact and robust structure for the tissue together the papermaker's fabric for which the fabric is used is reached.
- a The object solves an upper side, in particular paper side, with the features of claim 1 and a papermaking machine with the features of claim 5.
- the top or paper side consists of a plurality of longitudinal threads which are interwoven with a plurality of transverse threads and thereby rapports in the longitudinal and transverse directions, wherein the transverse thread rapport at least three times contains as many threads as the longitudinal thread repeat and the Lssensfadenrapport consists of at least three threads and the transverse thread rapport at least nine, all longitudinal threads alternately over three transverse threads and under three transverse threads and then under the remaining transverse threads and wherein two directly adjacent longitudinal threads in the longitudinal direction At least three transverse threads are shifted against each other.
- the stated object is also achieved by a papermaking machine with the features of claim 5.
- the upper side according to the invention is designed to approximate the well-known plain weave and thus allows the production of mark-free paper. Nevertheless, a high drainage can be achieved by the special design of the top and, if one provides the top with correspondingly suitable further layers of fabric on the bottom, a compact and robust construction is achieved, which counteracts the unwanted layer separation.
- the claimed top or paper side can be obtained inexpensively on conventional weaving devices, so that it is possible to dispense with special cost-intensive machine devices.
- the integration of additional machine-side transverse Direction threads possible and achieved in the sense of an ideal plain weave high uniformity for the top or top fabric layer of a papermaking fabric.
- the claimed binding principle can be extended to almost any number of longitudinal threads in the repeat and is readily feasible for three, five and six longitudinal threads within a repeat.
- the more longitudinal threads are present in the repeat the more shifts the length ratio of longitudinal thread to cross-direction yarn on the upper side in the direction of cross-direction yarn.
- the binding is getting wider, which is fundamentally detrimental to the uniformity of the paper side, but it causes an ever better support for the paper fibers emerging mainly longitudinally from the headbox of the paper machine.
- the upper side can be adapted to the circumstances in this simple way.
- the upper side of a heat-setting is supplied, resulting in a longitudinal stretching and a transformation of the fabric structure, in which the course of the longitudinal threads in the area in which they bind with the upper transverse threads, no longer strictly vertical or in the longitudinal direction, but is slightly diagonally oriented.
- the integration of the machine-side transverse threads ie the lower fabric with the upper fabric or the upper side can be done in many ways.
- the ratio of three upper transverse threads to two lower transverse threads is selected.
- the pitch of the lower fabric is preferably two, which corresponds to the weft ratio, and the weft repeat of the lower fabric is twice as long. chooses to realize a floating over eight shafts of the lower transverse threads.
- the length of the floating of the lower transverse threads can be done rapportes in whole multiples of the upper longitudinal thread.
- Fig. 1 shows a first embodiment relating to a fabric surface with a longitudinal thread rapport of four threads and a Querfadenrapport of twelve threads corresponding to the representation of a binding cartridge of Figure 4b).
- 2 shows a second exemplary embodiment relating to a fabric surface with a longitudinal thread repeat of three threads and a transverse thread repeat of nine threads corresponding to the illustration of FIG.
- FIG. 3 shows a third exemplary embodiment relating to a fabric surface with a longitudinal thread repeat of five threads and a transverse thread repeat of 15 threads corresponding to the representation of a binding cartridge according to FIG. 4c);
- Fig. 4c corresponds to a longitudinal thread repeat of five and a transverse thread repeat of 15 threads
- Fig. 4d corresponds to a longitudinal thread repeat of six and a transverse thread repeat of 18 threads;
- Fig. 6 is a known plain weave
- Fig. 7 is a representation of the top with a longitudinal thread repeat of four and a transverse thread repeat of twelve threads in a schematic structure.
- the subject matter of the invention relates to a multi-ply papermachine fabric having a paper side which is intended to approximate the well-known plain weave (see illustration of Figure 6) but through the use of a plurality of machine direction yarns the incorporation of to allow additional machine-side transverse direction threads.
- each machine direction yarn has to run alternately over three and under three transverse yarns and then below the top and - the bond has a slope of three.
- Fig. 4 shows the pertinent binding principle based on four different longitudinal thread rapport.
- the machine direction threads are represented by columns and the cross direction threads by lines. Furthermore, crossing points at which the respective longitudinal thread runs over an assignable transverse thread are marked by a cross.
- the solution according to the invention is applied to a longitudinal thread rapport of three threads 21 to 23.
- the Querfadenrapport has a length of nine threads 1 to 9, wherein the first longitudinal thread 21 alternately binds with the shots 1 to 6, with respect to the shots 1, 3 and 5 and below with respect to the shots 2, 4 and 6. Thereafter, the longitudinal thread remains below the shots 7 to 9.
- the directly to the right of adjacent longitudinal thread 22 has the same course; but moved up by three transverse threads. The above missing shots are added below the starting point. This displacement is usually designated by the term "pitch.”
- the longitudinal thread 22 thus begins at the transverse thread 4 and then runs like the longitudinal thread 21.
- Fig. 4b shows a preferred embodiment of the solution according to the invention with a longitudinal thread rapport of four threads 21 to 24.
- the transverse thread repeat results in twelve threads 1 to 12 and thus to a length that is three times as long as the longitudinal thread rapport.
- the first six shots 1 to 6 by the longitudinal thread 21 alternately about 1, 3 and 5 and including 2, 4 and 6 are involved.
- the remaining shots 7 to 12 remain below the longitudinal thread 21. Comparable arrangements result for the further longitudinal threads 22, 23 and 24.
- FIG. 7 The schematically woven surface corresponding to the binding cartridge according to FIG. 4b) is shown in FIG. 7. With the same diameters of longitudinal and transverse threads 102 and 105 as well as the same transverse thread pitches 103, the float lengths of the longitudinal and transverse threads 104 and 107 can also be represented in the same way. Only the mesh width 106 is different.
- This binding principle can be extended to almost any number of longitudinal threads in the repeat, which is shown by way of example in FIGS. 4a), 4c) and 4d) for three, five and six longitudinal threads.
- the more longitudinal threads are present in the repeat the more the length ratio of longitudinal thread to cross-direction thread on the upper side shifts in the direction of the cross-direction thread.
- the upper side can then be easily adapted to the circumstances.
- first longitudinal thread 21 binds alternately with the first six transverse threads 1 to 6 above and below and then extends only below the remaining transverse threads 7 to 12.
- the next longitudinal threads 22, 23 and 24 rise within the repeat by three transverse threads, in this case right above.
- a slope to the left is possible in principle, which would then result in a mirrored image of the surface (not shown).
- FIGS. 2 and 3 an embodiment with a longitudinal thread repeat of three or five threads is shown. Again, a total of four longitudinal thread rapporte are shown side by side to convey a better impression of the surface can.
- the use of the surface according to the invention in a double-layered sheet forming screen is shown there as a paper machine screen, the longitudinal threads being shown in section and the transverse threads cut away.
- the region of the longitudinal threads, which runs below the upper transverse threads can be used to incorporate lower transverse threads. This refers to the area that is located at the longitudinal thread 21 below the transverse threads 6 to 12 or 6 'to 12'.
- the surface used here corresponds to that shown in FIG. 1 with a longitudinal thread repeat of four threads and, correspondingly, a transverse thread repeat of twelve threads.
- the transverse thread number was chosen in the ratio of three upper transverse threads to two lower transverse threads. At the given slope of the upper fabric of three, the slope for the lower fabric is two. Thus, both the ratios of the transverse thread numbers and the pitch between the upper and lower fabric are the same, which has a favorable effect on the overall construction.
- the Flott ist terme the lower transverse threads twice as long designed as the longitudinal thread rapport of the upper fabric, so a total of eight threads included.
- the surface of the invention can thus be used as a paper page for a variety of different machine pages and thus sub-fabrics.
Landscapes
- Paper (AREA)
- Mobile Radio Communication Systems (AREA)
- Woven Fabrics (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL06841046T PL2004903T3 (en) | 2006-04-08 | 2006-12-20 | Upper side, in particular paper side, for a paper machine forming fabric and paper machine forming fabric |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006016660A DE102006016660C5 (en) | 2006-04-08 | 2006-04-08 | Upper side, in particular paper side, and paper machine screen |
PCT/EP2006/012272 WO2007115591A1 (en) | 2006-04-08 | 2006-12-20 | Upper side, in particular paper side, and papermaking-machine fabric |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2004903A1 true EP2004903A1 (en) | 2008-12-24 |
EP2004903B1 EP2004903B1 (en) | 2010-10-06 |
Family
ID=37828530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06841046A Active EP2004903B1 (en) | 2006-04-08 | 2006-12-20 | Upper side, in particular paper side, for a paper machine forming fabric and paper machine forming fabric |
Country Status (10)
Country | Link |
---|---|
US (1) | US7770606B2 (en) |
EP (1) | EP2004903B1 (en) |
JP (1) | JP4971423B2 (en) |
CN (2) | CN101416450A (en) |
AT (1) | ATE483853T1 (en) |
DE (2) | DE102006016660C5 (en) |
ES (1) | ES2353405T3 (en) |
PL (1) | PL2004903T3 (en) |
PT (1) | PT2004903E (en) |
WO (1) | WO2007115591A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010017055A1 (en) * | 2010-05-21 | 2011-11-24 | Andritz Technology And Asset Management Gmbh | forming wire |
CN102231283A (en) * | 2011-04-07 | 2011-11-02 | 清华大学 | Wireless interface of non-volatile memory |
DE102011054163B3 (en) * | 2011-10-04 | 2013-02-28 | ANDRITZ KUFFERATH GmbH | papermaker |
Family Cites Families (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE366353B (en) * | 1972-09-01 | 1974-04-22 | Nordiska Maskinfilt Ab | |
SE385486B (en) * | 1974-10-10 | 1976-07-05 | Nordiska Maskinfilt Ab | PROPAGATION WIRE FOR PAPER, CELLULOSE OR SIMILAR MACHINES AND MANUFACTURED THE SAME |
SE420852B (en) * | 1978-06-12 | 1981-11-02 | Nordiskafilt Ab | The forming fabric |
JPS5512863A (en) * | 1978-07-13 | 1980-01-29 | Nippon Filcon Kk | Synthetic resin net for paper making |
CA1110953A (en) * | 1978-10-23 | 1981-10-20 | John G. Buchanan | Duplex forming fabric |
SE430425C (en) * | 1981-06-23 | 1986-09-19 | Nordiskafilt Ab | PREPARATION WIRES FOR PAPER, CELLULOSA OR SIMILAR MACHINES |
DE3143433A1 (en) * | 1981-11-02 | 1983-05-11 | Hutter & Schrantz Siebtechnik GmbH, Wien | Double-layered fabric for paper machine screens |
DE3224187C2 (en) * | 1982-06-29 | 1989-01-12 | Hermann Wangner Gmbh & Co Kg, 7410 Reutlingen | Bandage fabric as a covering for the sheet forming area of a paper machine |
DE3318985A1 (en) * | 1983-05-25 | 1984-11-29 | Fa. F. Oberdorfer, 7920 Heidenheim | Paper machine wire with two superposed fabric plies |
US4642261A (en) * | 1984-12-21 | 1987-02-10 | Unaform Inc. | Papermakers fabric having a tight bottom weft geometry |
DE3801051A1 (en) * | 1988-01-15 | 1989-07-27 | Wangner Gmbh Co Kg Hermann | DOUBLE-DAY LOADING FOR THE SHEETING AREA OF A PAPER MACHINE |
DE3817144A1 (en) * | 1988-05-19 | 1989-11-30 | Wangner Gmbh Co Kg Hermann | DOUBLE-LAYER COVERING FOR THE SHEET FORMING AREA OF A PAPER MACHINE |
DE3910019A1 (en) * | 1989-03-28 | 1990-10-04 | Kufferath Andreas Gmbh | MULTILAYER PAPER MACHINE SCREEN |
FI85605C (en) * | 1990-06-15 | 1994-06-28 | Tamfelt Oy Ab | Tvaoskiktad pappersmaskinsduk |
US5238536A (en) * | 1991-06-26 | 1993-08-24 | Huyck Licensco, Inc. | Multilayer forming fabric |
US5508094A (en) * | 1991-12-18 | 1996-04-16 | Albany International Corp. | Press fabrics for paper machines |
DE4229828C2 (en) * | 1992-09-07 | 1996-07-04 | Kufferath Andreas Gmbh | Paper machine screen in the form of a composite fabric |
US6039838A (en) * | 1995-12-29 | 2000-03-21 | Kimberly-Clark Worldwide, Inc. | System for making absorbent paper products |
US6427728B1 (en) * | 1998-12-14 | 2002-08-06 | The Goodyear Tire & Rubber Company | Conveyor belting with reinforcing fabric formed from three interlaced layers |
GB2351505A (en) * | 1999-06-29 | 2001-01-03 | Jwi Ltd | Two-layer woven fabric for papermaking machines |
DE19950391A1 (en) | 1999-10-11 | 2001-04-12 | Deutsche Telekom Ag | Process and arrangement for the secure processing of e-commerce payment transactions via credit cards |
US6413377B1 (en) * | 1999-11-09 | 2002-07-02 | Astenjohnson, Inc. | Double layer papermaking forming fabric |
US6334467B1 (en) * | 1999-12-08 | 2002-01-01 | Astenjohnson, Inc. | Forming fabric |
US6585006B1 (en) * | 2000-02-10 | 2003-07-01 | Weavexx Corporation | Papermaker's forming fabric with companion yarns |
US6244306B1 (en) * | 2000-05-26 | 2001-06-12 | Weavexx Corporation | Papermaker's forming fabric |
FI108551B (en) * | 2000-06-26 | 2002-02-15 | Tamfelt Oyj Abp | A paper machine fabric |
DE10030650C1 (en) * | 2000-06-29 | 2002-05-29 | Kufferath Andreas Gmbh | papermaker |
US6253796B1 (en) * | 2000-07-28 | 2001-07-03 | Weavexx Corporation | Papermaker's forming fabric |
DE10039736A1 (en) * | 2000-08-16 | 2002-03-07 | Kufferath Andreas Gmbh | composite fabric |
US6379506B1 (en) * | 2000-10-05 | 2002-04-30 | Weavexx Corporation | Auto-joinable triple layer papermaker's forming fabric |
FI110131B (en) * | 2001-02-22 | 2002-11-29 | Tamfelt Oyj Abp | A paper machine fabric |
GB2391557A (en) * | 2002-08-06 | 2004-02-11 | Richard Stone | Forming fabric for papermaking |
-
2006
- 2006-04-08 DE DE102006016660A patent/DE102006016660C5/en active Active
- 2006-05-15 CN CNA2006800541612A patent/CN101416450A/en active Pending
- 2006-12-20 DE DE502006008050T patent/DE502006008050D1/en active Active
- 2006-12-20 ES ES06841046T patent/ES2353405T3/en active Active
- 2006-12-20 JP JP2009503424A patent/JP4971423B2/en active Active
- 2006-12-20 CN CN2006800541608A patent/CN101415881B/en active Active
- 2006-12-20 PT PT06841046T patent/PT2004903E/en unknown
- 2006-12-20 AT AT06841046T patent/ATE483853T1/en active
- 2006-12-20 US US12/226,052 patent/US7770606B2/en active Active
- 2006-12-20 WO PCT/EP2006/012272 patent/WO2007115591A1/en active Application Filing
- 2006-12-20 PL PL06841046T patent/PL2004903T3/en unknown
- 2006-12-20 EP EP06841046A patent/EP2004903B1/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2007115591A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102006016660B3 (en) | 2007-06-06 |
PT2004903E (en) | 2010-12-23 |
JP2009533560A (en) | 2009-09-17 |
DE502006008050D1 (en) | 2010-11-18 |
CN101415881A (en) | 2009-04-22 |
WO2007115591A1 (en) | 2007-10-18 |
JP4971423B2 (en) | 2012-07-11 |
ES2353405T3 (en) | 2011-03-01 |
CN101415881B (en) | 2012-09-12 |
CN101416450A (en) | 2009-04-22 |
DE102006016660C5 (en) | 2009-09-03 |
US20090308482A1 (en) | 2009-12-17 |
PL2004903T3 (en) | 2011-04-29 |
ATE483853T1 (en) | 2010-10-15 |
EP2004903B1 (en) | 2010-10-06 |
US7770606B2 (en) | 2010-08-10 |
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