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WO2004099496A1 - Tissu de base multiaxial en feutre presse - Google Patents

Tissu de base multiaxial en feutre presse Download PDF

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Publication number
WO2004099496A1
WO2004099496A1 PCT/US2003/014203 US0314203W WO2004099496A1 WO 2004099496 A1 WO2004099496 A1 WO 2004099496A1 US 0314203 W US0314203 W US 0314203W WO 2004099496 A1 WO2004099496 A1 WO 2004099496A1
Authority
WO
WIPO (PCT)
Prior art keywords
fabric
base fabric
layers
press felt
layer
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.)
Ceased
Application number
PCT/US2003/014203
Other languages
English (en)
Inventor
Samuel H. Herring
Rene Marchand
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PCT/US2003/014203 priority Critical patent/WO2004099496A1/fr
Priority to AU2003232068A priority patent/AU2003232068A1/en
Publication of WO2004099496A1 publication Critical patent/WO2004099496A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
    • D21F7/083—Multi-layer felts

Definitions

  • This invention relates to multiaxial press felt base fabric fabrics used in the manufacture of press felts for the press section of a paper making machine.
  • a "traditional" prior art press felt comprises at least two, and often three or more layers. These are a press felt base fabric which forms the core of the press felt, and which amongst other things provides the press felt with adequate mechanical strength and stability.
  • the press felt base fabric is typically a single woven layer, or a multilayer fabric comprising several woven layers . In each case, each layer is the length and width of the finished press felt.
  • the other layer or layers comprise at least one layer of batt which is needle punched, or otherwise mechanically, attached to at least one side of the press felt base fabric; in a two layer fabric the batt is needled to only one side of the press felt base fabric, and in a three, or more, layer fabric the additional layers of batt are needled to both sides of the press felt base fabric.
  • the press felt functions in the press section of the papermaking machine to support the embryonic paper web as it leaves the forming section, and to provide a reservoir into which water that is expressed from the web by mechanical pressing by the press section press rolls may move.
  • the structure of the press section base fabric has an influence on the drainage properties of the press felt of which it forms one part. Although this inherently simple .
  • press section base fabric itself is often more than one layer of obtained by spirally assembling the fabric from a relatively narrow strip of woven material, often about 1 m wide, using the methods broadly described by Best et al, US 5,268,076, Svensson et al, US 5,360,656, Fekete, US 5,785,818. or Baker et al, US 6,030,908.
  • machine direction refers to the direction in which the press felt moves within the press section
  • cross machine direction refers to a direction essentially within the plane of the press felt and substantially perpendicular to the machine direction.
  • each of the layers of the press felt base fabric are spiral wound from strips woven to an essentially regular square weave pattern, such as a plain weave: the warp yarns are usually more or less in the machine direction and the weft yarns are more or less in the cross machine direction, the deviation in each case being the angle chosen in the spiral winding step. If two layers made from strips each of which has the same essentially square pattern are located at the same angle and in the same direction relative to the machine direction then uneven drainage of the web does not generally occur. But if the two layers are located at the same angle to the machine direction but with each layer differently oriented relative to the machine direction then uneven drainage can occur, which in its turn can result in marking of the wet paper web.
  • this marking is caused by the formation of a Moire pattern between the two overlaid fabric webs .
  • two essentially square patterns such as those found in woven fabrics, are over laid with coincident axes, so that the two sets of warp yarns and weft yarns are essentially parallel to each other, a regular pattern of spaces through the two layers can be seen.
  • a regular pattern of spaces through the two layers cannot be seen, and a so-called Moire pattern is found.
  • a Moire pattern is obtained areas are visible with but little open space together with areas of considerable open space.
  • the needles tend not to puncture the monofilament yarns from which the individual press felt base fabric layers are woven, but rather penetrate beside them. It then follows that any Moire pattern inherent in the alignment of the layers in the individually spirally wound press felt base fabric layers tends to be reproduced in the batt layer or layers, thus exacerbating the water drainage problems.
  • This invention seeks to provide a solution to this problem of uneven drainage, and thus to provide a e press fabric base fabric for use in a spirally wound press felt base fabric comprising at least two layers which does not result in the presence of a Moire pattern between the two adjacent layers which may cause both uneven web drainage or web marking.
  • this improvement in water drainage properties is obtained by the introduction of randomness into the weave pattern of at least some of the layers used in the press felt base fabric . It also then follows that if the Moire pattern is eliminated, then reproduction of this pattern in the batt layers is not possible, thereby reducing or substantially eliminating any mark imparted to. the paper web carried by the press felt.
  • this invention seeks to provide a multi layer spirally wound base fabric for use in making a press section fabric for a paper making machine which press section fabric includes the spirally wound base fabric together with at least one layer of batt needled to at least one side of the base fabric and which base fabric has a machine direction and a cross machine direction substantially perpendicular to the machine direction, wherein: the base fabric includes N fabric layers; in the base fabric N is an integer and is at least 2; in the base fabric each layer comprises warp and weft yarns woven to a repeating pattern, the warp yarns in each layer being spirally wound at a small angle to the machine direction;
  • the warp yarns in succeeding fabric layers are arranged in a sequence such that in a first layer the warp yarns are spirally wound at a first small angle to one side of the machine direction and in a second immediately adjacent layer the warp yarns are spirally wound at a second small angle to the other side of the machine direction so that the direction of the warp yarns in each layer forms a shallow V with the direction of the warp yarns in any immediately adjacent (layers; in the base fabric at least ,N - 1 of the layers are woven . to ' at least one repeat pattern which introduces at least some _ randomness into the appearance of the fabric surface.
  • all of the N layers are woven to at least one repeat pattern which introduces at least some randomness into the appearance of the fabric surface. More preferably, in the base fabric all of the N layers are woven to a repeat pattern which introduces at least some randomness into the appearance of the fabric repeat pattern.
  • Figure 1 shows schematically two overlaid identical square patterns in which the axes of the patterns are essentially parallel;
  • Figure 2 shows schematically the same two square patterns in which the axes of the two patterns are at a small angle
  • Figures 3 and 4 show two views of a first fabric useable according to this invention at different magnifications ;
  • Figures 5 and 6 show two views of a second fabric useable according to this invention at different magnifications
  • Figure 7 shows a third fabric according to this invention.
  • FIG. 3 and 4 A first example of a fabric useful in this invention is shown in Figures 3 and 4. This is a pattern where the weft yarns, which are in the cross machine direction, do not follow the usual more or less linear path across the fabric. Although the warp yarns 11 in Figures 3 and 4 follow a more or less linear path, the weft yarns 12 and 13 do not follow a linear path; it can be seen that wefts 12 and 13 are not even more or less parallel to each other. This breaks up the grid effect, and reduces the Moire pattern effects. This can be seen in Figure 4, where the possibility of a Moire pattern being formed is decreased by the randomness of the weave pattern used in the production of the strips used in the spiral winding process .
  • Warp yarn size .30mm; warp yarn count: 12.2 yarn/cm.
  • weft yarn size .40mm; weft yarn count: 11.0 yarn/cm. Weave pattern.
  • FIG. 5 A second example of a fabric useful in this invention is shown in Figures 5 and 6.
  • This is a pattern where the weft yarns, which are in the cross machine direction, do not follow the usual more or less linear path across the fabric.
  • the warp yarns 14 in Figures 5 and 6 follow a more or less linear path, only the weft yarn 16 follows a linear path; it can be seen that wefts 15 and 16 are not even more or less parallel to each other.
  • Figure 5 two different sized weft yarns have been used. This breaks up the grid effect, and reduces the Moire pattern effects. This can be seen in Figure 6, where the possibility of a Moire pattern being formed is decreased by the randomness of the weave pattern.
  • Warp yarn size .50mm; warp yarn count: 5.5 yarn/cm. . ' .
  • weft yarn sizes .30mm and .48mm; weft yarn count: 12.2 yarn/cm.
  • FIG. 7 A third example of a fabric useful in this invention is shown in Figure 7. This again is a pattern where the weft yarns, which are in the cross machine direction, do not follow the usual more or less linear path across the fabric. Although the warp yarns 17 in Figure 7 follow a more or less linear path, the weft yarns 18 and 19 do not follow a linear path; it can be seen that wefts 18 and 19 are not even more or less parallel to each other. This again breaks up the grid effect, and reduces the Moire pattern effects. This can be seen in Figure 7, where the possibility of a Moire pattern being formed is decreased by the randomness of the weave pattern.
  • the press felt base fabric has to include at least two spirally wound layers which do not have their axes in alignment. Generally, the fabric axes will be at an angle of from about 3° to about 10° to the machine direction of the press section. Although the two spirally wound fabrics are generally at the same angle to the machine direction, this need not be so.
  • the fabrics of this invention include two or more spirally wound layers, it is not necessary for them all to be made from the same fabric. It is only necessary that the spirally wound fabric should include sufficient layers including randomness for the Moire pattern effects to be eliminated. This will generally call for one layer with randomness for every layer without. In fabrics with an odd number of layers it is preferred that there be more layers with randomness than without.

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Abstract

L'invention concerne un tissu de base multiaxial en feutre pressé, fabriqué par enroulement en spirale d'au moins N (N étant un entier et au moins 2), de rubans de tissu tissé les uns au-dessus des autres, et généralement par aiguilletage d'une couche de nattes sur une ou les deux surfaces. Les fils de chaîne des rubans utilisés dans chaque couche successive sont enroulés en spirale selon un angle d'environ 3 à 10°, dans le sens machine de la machine à fabriquer le papier dans laquelle le feutre pressé est utilisé. Pour éliminer sensiblement le marquage de la bande continue de papier dû à un drainage irrégulier de l'eau à travers le tissu de base en feutre pressé, dans au moins la moitié des couches, le ruban utilisé pour l'enroulement en spirale est tissé en un motif qui introduit au moins quelques caractère aléatoire dans l'aspect du tissu de base en feutre pressé.
PCT/US2003/014203 2003-05-05 2003-05-05 Tissu de base multiaxial en feutre presse Ceased WO2004099496A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/US2003/014203 WO2004099496A1 (fr) 2003-05-05 2003-05-05 Tissu de base multiaxial en feutre presse
AU2003232068A AU2003232068A1 (en) 2003-05-05 2003-05-05 Multiaxial press felt base fabric

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2003/014203 WO2004099496A1 (fr) 2003-05-05 2003-05-05 Tissu de base multiaxial en feutre presse

Publications (1)

Publication Number Publication Date
WO2004099496A1 true WO2004099496A1 (fr) 2004-11-18

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Family Applications (1)

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PCT/US2003/014203 Ceased WO2004099496A1 (fr) 2003-05-05 2003-05-05 Tissu de base multiaxial en feutre presse

Country Status (2)

Country Link
AU (1) AU2003232068A1 (fr)
WO (1) WO2004099496A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006116006A1 (fr) * 2005-04-28 2006-11-02 Albany International Corp. Tissu multiaxial presentant un modele d'interference reduit
EP1739227A1 (fr) * 2005-07-01 2007-01-03 Voith Patent GmbH Habillage pour machine à papier
DE102007000579A1 (de) 2007-10-26 2009-04-30 Voith Patent Gmbh Papiermaschinenbespannungen, insbesondere für Pressfilze, und Verfahren zu deren Herstellung
WO2014124111A1 (fr) 2013-02-06 2014-08-14 Astenjohnson, Inc. Tissu à base de feutre de presse présentant une réduction d'interférence
JP2020011282A (ja) * 2018-07-20 2020-01-23 アサダメッシュ株式会社 装飾シート及びその製造方法
WO2020187480A1 (fr) * 2019-03-18 2020-09-24 Voith Patent Gmbh Tissu et textile technique
JP2022089832A (ja) * 2018-07-20 2022-06-16 アサダメッシュ株式会社 装飾シート

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5268076A (en) * 1990-06-13 1993-12-07 Thomas Josef Heimbach Gmbh & Co. Spiral wound papermaking-machine felt
US5277967A (en) * 1991-11-21 1994-01-11 Huyck Licensco, Inc. Multilayer fabrics
US5785818A (en) * 1997-02-27 1998-07-28 Jwi Ltd. Multiaxial pin seamed papermaker's press felt

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5268076A (en) * 1990-06-13 1993-12-07 Thomas Josef Heimbach Gmbh & Co. Spiral wound papermaking-machine felt
US5277967A (en) * 1991-11-21 1994-01-11 Huyck Licensco, Inc. Multilayer fabrics
US5785818A (en) * 1997-02-27 1998-07-28 Jwi Ltd. Multiaxial pin seamed papermaker's press felt

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101320852B1 (ko) * 2005-04-28 2013-10-29 알바니 인터내셔널 코포레이션 줄어든 간섭 패턴을 갖는 다축 직물
EP3103918A3 (fr) * 2005-04-28 2017-03-08 Albany International Corp. Tissu multiaxial presentant un modele d'interference reduit
JP2008539341A (ja) * 2005-04-28 2008-11-13 アルバニー インターナショナル コーポレイション 干渉を減少させたパターンを有する多軸布
US7473336B2 (en) 2005-04-28 2009-01-06 Albany International Corp. Multiaxial fabrics
CN103437234A (zh) * 2005-04-28 2013-12-11 阿尔巴尼国际公司 具有减少的干涉图案的多轴向织物
RU2401330C2 (ru) * 2005-04-28 2010-10-10 Олбэни Интернэшнл Корп. Многоосная ткань с уменьшенным интерференционным узором
US7981252B2 (en) 2005-04-28 2011-07-19 Albany International Corp. Multiaxial fabrics
JP2011208349A (ja) * 2005-04-28 2011-10-20 Albany Internatl Corp 干渉を減少させたパターンを有する多軸布
JP4870154B2 (ja) * 2005-04-28 2012-02-08 アルバニー インターナショナル コーポレイション 干渉を減少させたパターンを有する多軸布
EP2434052A1 (fr) * 2005-04-28 2012-03-28 Albany International Corp. Tissu multiaxial présentant un modèle d'interférence réduit
US8372246B2 (en) 2005-04-28 2013-02-12 Albany International Corp. Multiaxial fabrics
CN101184893B (zh) * 2005-04-28 2013-08-21 阿尔巴尼国际公司 具有减少的干涉图案的多轴向织物
US8753485B2 (en) 2005-04-28 2014-06-17 Albany International Corp. Multiaxial fabrics
TWI488736B (zh) * 2005-04-28 2015-06-21 Albany Int Corp 經改良的多軸向織物（二）
WO2006116006A1 (fr) * 2005-04-28 2006-11-02 Albany International Corp. Tissu multiaxial presentant un modele d'interference reduit
TWI488735B (zh) * 2005-04-28 2015-06-21 Albany Int Corp 經改良的多軸向織物（一）
EP1739227A1 (fr) * 2005-07-01 2007-01-03 Voith Patent GmbH Habillage pour machine à papier
DE102007000579A1 (de) 2007-10-26 2009-04-30 Voith Patent Gmbh Papiermaschinenbespannungen, insbesondere für Pressfilze, und Verfahren zu deren Herstellung
WO2014124111A1 (fr) 2013-02-06 2014-08-14 Astenjohnson, Inc. Tissu à base de feutre de presse présentant une réduction d'interférence
US9404218B2 (en) 2013-02-06 2016-08-02 Astenjohnson, Inc. Press felt base fabric exhibiting reduced interference
JP2020011282A (ja) * 2018-07-20 2020-01-23 アサダメッシュ株式会社 装飾シート及びその製造方法
JP7051098B2 (ja) 2018-07-20 2022-04-11 アサダメッシュ株式会社 装飾シート及びその製造方法
JP2022089832A (ja) * 2018-07-20 2022-06-16 アサダメッシュ株式会社 装飾シート
WO2020187480A1 (fr) * 2019-03-18 2020-09-24 Voith Patent Gmbh Tissu et textile technique
CN113631773A (zh) * 2019-03-18 2021-11-09 福伊特专利有限公司 织物和工业用纺织品

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