EP0950739B1 - Siebgewebe - Google Patents
Siebgewebe Download PDFInfo
- Publication number
- EP0950739B1 EP0950739B1 EP19990106724 EP99106724A EP0950739B1 EP 0950739 B1 EP0950739 B1 EP 0950739B1 EP 19990106724 EP19990106724 EP 19990106724 EP 99106724 A EP99106724 A EP 99106724A EP 0950739 B1 EP0950739 B1 EP 0950739B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cross
- section
- fabric
- fibrous web
- 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.)
- Expired - Lifetime
Links
Images
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
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D11/00—Double or multi-ply fabrics not otherwise provided for
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/30—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments
- D03D15/37—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments with specific cross-section or surface shape
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
- D03D15/44—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with specific cross-section or surface shape
-
- 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
-
- 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
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2973—Particular cross section
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3065—Including strand which is of specific structural definition
- Y10T442/3089—Cross-sectional configuration of strand material is specified
- Y10T442/3114—Cross-sectional configuration of the strand material is other than circular
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3065—Including strand which is of specific structural definition
- Y10T442/3089—Cross-sectional configuration of strand material is specified
- Y10T442/3114—Cross-sectional configuration of the strand material is other than circular
- Y10T442/3122—Cross-sectional configuration is multi-lobal
Definitions
- the invention relates to a screen fabric for a machine for manufacturing and / or Refining a fibrous web, in particular a paper, cardboard or tissue web consisting of at least one layer of interwoven in the running direction aligned longitudinal threads and transverse threads running transversely thereto.
- Such screen fabrics are known for example from DE-OS 41 41 139.
- it should also have a high water vapor permeability be so that the water vapor can be discharged through the sieve.
- the screen mesh should be largely closed, in order to minimize it Leave markings in the fibrous web. This is said in the above OS can be achieved in that the threads have a trapezoidal cross section, the parallel sides should run parallel to the running direction. The adhesion of the fibrous web to the screen fabric is in need of improvement.
- this object is achieved in that at least part of the Cross threads an approximately teardrop-shaped or essentially three-sided, acute-angled Has cross-section, the pointed end approximately in the running direction of the screen fabric is aligned.
- the air flow due to the wire running along the cross thread is generated because of the special shape of the cross section after the cross thread a negative pressure, which the Adhesion of the fibrous web to the screen fabric improved.
- This can be reinforced nor in that the angle between the bisector of the pointed end of the respective cross-section and the surface of the Sieve cloth is between 2 ° and 70 °, preferably between 5 ° and 40 °. there becomes an enlarged part of the air flow divided by the pointed end of the cross thread led away from the surface touched by the fibrous web, causing the negative pressure after the cross thread increased.
- a teardrop-shaped or essentially three-sided have an acute-angled cross-section.
- the cross threads should be in the area a flat surface of the screen fabric that is not touched by the fibrous web Have cross-section and preferably be oriented approximately in the running direction. especially when there is strong adhesion, for example to heavy papers is desired, however, all transverse threads should be approximately teardrop-shaped or in have an essential three-sided, acute-angled cross-section.
- the longitudinal threads should always be flat or round, which strengthens the strength and the Flow conditions on the cross threads little affected. This is particularly suitable Screen fabrics for use in the former, in a press section or in one Drying section of a paper machine.
- a relatively simple way of producing the cross section according to the invention the cross threads is that the cross threads through the press nip of two rollers are guided, at least one roller having a groove running in the circumferential direction to form the cross-sectional profile of the cross threads. It is also possible this shape already when casting the transverse threads by means of an appropriate nozzle achieve.
- the screen fabric consists of interwoven in the running direction 1 aligned longitudinal threads 2 and transverse threads 3 running transversely thereto. While in 1 a layer of longitudinal threads 2 and transverse threads 3 is interwoven, however, there are two layers in FIG. 2.
- the transverse threads 3 have an approximately has a drop-shaped or essentially triangular, acute-angled cross-section, the pointed end 4 is aligned approximately in the running direction 1 of the screen fabric.
- the angle between the bisector 5 of the pointed end 4 of the respective cross section and the surface of the fibrous web 6 touched Sieve cloth between 2 ° and 70 °, preferably between 5 ° and 40 °.
- the side of the transverse threads 3 facing the fibrous web 6 runs approximately parallel to the Fibrous web 6. This ensures that the air is substantially is guided away from the fibrous web 6 due to the running of the screen fabric.
- a negative pressure which the liability of Fiber web 6 improved on the screen fabric.
- the longitudinal threads 2 have in both cases a round cross section.
- the transverse threads 3 can be guided through the press nip of two rollers be, with at least one roller corresponding in the circumferential direction running groove.
- This groove can extend along the circumference of the roller have a changing profile, which corresponds to the cross-sectional profile of the Cross thread 3 affects.
- transverse threads 3 in FIG. 1 have an essentially three-sided, acute-angled one Have cross-section with rounded corners, is an approximately drop-shaped in Figure 2 Cross section of the transverse thread 3 shown.
- the screen fabric can also have more than two layers of longitudinal threads 2 and Have cross threads 3.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Paper (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Description
- Figur 1:
- ein einlagiges Siebgewebe und
- Figur 2:
- ein zweilagiges Siebgewebe.
Claims (8)
- Siebgewebe für eine Maschine zur Herstellung und/oder Veredelung einer Faserstoffbahn (6), insbesondere einer Papier-, Karton- oder Tissuebahn bestehend aus zumindest je einer Lage von miteinander verwobenen in Laufrichtung (1) ausgerichteten Längsfäden (2) und quer dazu verlaufenden Querfäden (3), dadurch gekennzeichnet, daß
zumindest ein Teil der Querfäden (3) einen etwa tropfenförmigen oder im wesentlichen dreiseitigen, spitzwinkligen Querschnitt besitzt, wobei das spitze Ende (4) etwa in Laufrichtung (1) des Siebgewebes ausgerichtet ist. - Siebgewebe nach Anspruch 1, dadurch gekennzeichnet, daß
der Winkel zwischen der Winkelhalbierenden (5) des spitzen Endes (4) des jeweiligen Querschnitts und der von der Faserstoffbahn (6) berührten Oberfläche des Siebgewebes zwischen 2 ° und 70 °, vorzugsweise zwischen 5 ° und 40 ° liegt. - Siebgewebe nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß
die der Faserstoffbahn (6) zugewandte Seite des Querfadens (3) etwa parallel zur Faserstoffbahn (6) verläuft oder zu dieser in der Form geneigt ist, daß sich der Abstand zwischen beiden entgegen der Laufrichtung (1) des Siebgewebes vergrößert. - Siebgewebe nach einem der vorhergehenden Anprüche, dadurch gekennzeichnet, daß
im wesentlichen nur die Querfäden (3) im Bereich der von der Faserstoffbahn (6) berührten Oberfläche des Siebgewebes einen tropfenförmigen oder im wesentlichen dreiseitigen, spitzwinkligen Querschnitt aufweisen. - Siebgewebe nach Anspruch 4, dadurch gekennzeichnet, daß
die Querfäden (3) im Bereich der nicht von der Faserstoffbahn (6) berührten Oberfläche des Siebgewebes einen flachen Querschnitt besitzen und vorzugsweise etwa in Laufrichtung (1) orientiert sind. - Siebgewebe nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß alle Querfäden (3) einen etwa tropfenförmigen oder im wesentlichen dreiseitigen, spitzwinkligen Querschnitt aufweisen.
- Siebgewebe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß
die Längsfäden (2) flach oder rund sind. - Verwendung des Siebgewebes nach einem der vorhergehenden Ansprüche in einem Former, in einer Pressenpartie oder in einer Trockenpartie einer Papiermaschine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19817050 | 1998-04-17 | ||
| DE1998117050 DE19817050A1 (de) | 1998-04-17 | 1998-04-17 | Siebgewebe |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0950739A2 EP0950739A2 (de) | 1999-10-20 |
| EP0950739A3 EP0950739A3 (de) | 1999-11-17 |
| EP0950739B1 true EP0950739B1 (de) | 2003-02-19 |
Family
ID=7864837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19990106724 Expired - Lifetime EP0950739B1 (de) | 1998-04-17 | 1999-04-01 | Siebgewebe |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6265331B1 (de) |
| EP (1) | EP0950739B1 (de) |
| CA (1) | CA2269183A1 (de) |
| DE (2) | DE19817050A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7604026B2 (en) * | 2006-12-15 | 2009-10-20 | Albany International Corp. | Triangular weft for TAD fabrics |
| DE102015005160B4 (de) * | 2015-04-16 | 2019-04-18 | Saint-Gobain Adfors | Verfahren und Vorrichtung zum Herstellen von Fadengelegen |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2487876A1 (fr) * | 1980-08-04 | 1982-02-05 | Schoeller Dueren Metalltuch | Tamis d'egouttage pour machine a papier |
| GB2157328A (en) * | 1984-04-12 | 1985-10-23 | Jwi Ltd | Improved multilayer forming fabric |
| CA1277209C (en) * | 1986-11-28 | 1990-12-04 | Dale B. Johnson | Composite forming fabric |
| FI83673C (fi) * | 1989-10-09 | 1991-08-12 | Tamfelt Oy Ab | Garn foer anvaendning vid framstaellning av en torkduk foer anvaendning i en pappersmaskin eller liknande. |
| US5023132A (en) * | 1990-04-03 | 1991-06-11 | Mount Vernon Mills, Inc. | Press felt for use in papermaking machine |
| DE4141139C2 (de) * | 1991-12-13 | 1995-08-31 | Voith Gmbh J M | Siebgewebe für eine Papiermaschine |
| DE9211776U1 (de) * | 1992-09-02 | 1992-11-12 | Württembergische Filztuchfabrik D. Geschmay GmbH, 7320 Göppingen | Trockensieb |
| US5429686A (en) * | 1994-04-12 | 1995-07-04 | Lindsay Wire, Inc. | Apparatus for making soft tissue products |
| US5449548A (en) * | 1994-11-28 | 1995-09-12 | Bowen, Jr.; David | Table, reduced permeability papermaker's fabrics containing fibers with fins designed to distort at lower force levels by having a reduced cross sectional area within the fin |
| US5651394A (en) * | 1996-02-02 | 1997-07-29 | Huyck Licensco, Inc. | Papermakers fabric having cabled monofilament oval-shaped yarns |
-
1998
- 1998-04-17 DE DE1998117050 patent/DE19817050A1/de not_active Withdrawn
-
1999
- 1999-04-01 DE DE59904307T patent/DE59904307D1/de not_active Expired - Fee Related
- 1999-04-01 EP EP19990106724 patent/EP0950739B1/de not_active Expired - Lifetime
- 1999-04-15 CA CA002269183A patent/CA2269183A1/en not_active Abandoned
- 1999-04-16 US US09/292,978 patent/US6265331B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0950739A3 (de) | 1999-11-17 |
| DE59904307D1 (de) | 2003-03-27 |
| EP0950739A2 (de) | 1999-10-20 |
| CA2269183A1 (en) | 1999-10-17 |
| US6265331B1 (en) | 2001-07-24 |
| DE19817050A1 (de) | 1999-10-21 |
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