WO1994009208A1 - A method of manufacturing a cover for a press roll - Google Patents

A method of manufacturing a cover for a press roll Download PDF

Info

Publication number
WO1994009208A1
WO1994009208A1 PCT/US1993/008537 US9308537W WO9409208A1 WO 1994009208 A1 WO1994009208 A1 WO 1994009208A1 US 9308537 W US9308537 W US 9308537W WO 9409208 A1 WO9409208 A1 WO 9409208A1
Authority
WO
WIPO (PCT)
Prior art keywords
matrix
cover
manufacturing
set forth
filler
Prior art date
Application number
PCT/US1993/008537
Other languages
French (fr)
Inventor
James Bonander
Eugene L. Slagowski
Original Assignee
Beloit Technologies, Inc.
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 Technologies, Inc. filed Critical Beloit Technologies, Inc.
Priority to JP6509996A priority Critical patent/JP2881663B2/en
Priority to DE69314966T priority patent/DE69314966T2/en
Priority to EP93921473A priority patent/EP0664843B1/en
Publication of WO1994009208A1 publication Critical patent/WO1994009208A1/en

Links

Classifications

    • 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
    • D21F3/08—Pressure rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
    • B30B3/005—Roll constructions
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings

Definitions

  • the filler material is composed of either mineral particles, synthetic particles or refractory particles.
  • Figure 2 is a similar view to that shown in Figure 1 , but shows filler material being added to the matrix while the matrix is being agitated;
  • Figure 2 is a similar view to that shown in Figure 1 , but shows filler material 16 being added to the matrix 10 while the matrix 10 is being agitated within the container 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
  • Reinforced Plastic Materials (AREA)
  • Paper (AREA)

Abstract

A method of manufacturing a cover for a press roll includes the steps of feeding epoxy matrix (10) into a container (12) and agitating the same. Filler material (16) is added to the matrix (10) while the matrix is being agitated. The matrix (10) and filler (16) are conveyed to an application zone (18). A roll (20) of reinforcing material (22) is unwound such that the unwound reinforcing material (22) extends past the application zone (18). The agitated matrix (10) and filler (16) is applied to the unwound material (22) during passage of the material past the application zone (18). The reinforcing material (22) with the matrix (10) and filler (16) applied thereto are then spirally wound around the press roll (28) such that the press roll (28) is covered with the reinforcing material (22) impregnated with the matrix (10) and filler (16). The arrangement is such that the surface characteristics of the resultant cover are dependent on the amount and type of filler material added to the matrix (10).

Description

PATENT APPLICATION TITLE: A METHOD OF MANUFACTURING A COVER FOR A PRESS ROLL
Background of the Invention Field of the Invention v
The present invention relates to a method of manufacturing a cover for a press roll. More specifically, the present invention relates to a method of manufacturing a cover for a press roll which includes spirally winding reinforcing material around the press roll.
Information Disclosure Statement
In the papermaking art, a formed web is guided through a press section for removing water from the web.
Steel press rolls have been covered with rubber or synthetic material in order to enhance the water removing capability of the press.
Often, it has been the practice to add filler particles to the rubber compounds prior to application of the rubber compound to the steel roll shell in order to change the hardness of the resultant cover.
Additionally, fillers have been added to urethane in order to increase the hardness of the cover.
However, more recently, it has been found advantageous to impregnate reinforcing material with a urethane material and to spirally wind the same onto a roll shell. However, such spiral winding of the reinforcing material does not readily permit the addition thereto of the aforementioned filler particles.
The present invention overcomes the problem of adding filler to the spirally wound reinforcing material by applying the filler to an epoxy matrix prior to the application of the mixture to the reinforcing material.
Therefore, the present invention provides a method of manufacturing a cover for a press roll that overcomes the aforementioned inadequacies of the prior art arrangements and which makes a considerable contribution to the art of manufacturing a cover for a press roll.
Other objects and advantages of the present invention will be readily apparent to those skilled in the art by a consideration of the detailed description contained hereinafter, taken in conjunction with the annexed drawings.
Summary of the Invention
The present invention relates to a method of manufacturing a cover for a press roll. The method includes the steps of feeding an epoxy matrix into a container and agitating the matrix. Filler material is added to the matrix while the matrix is being agitated, and the matrix and filler are then conveyed to an application zone. Reinforcing material is unwound from a roll such that the material extends past the application zone. The agitated matrix and filler are applied to the unwound material during passage of the material past the application zone. The reinforcing material, together with the matrix and filler, are then spirally wound around the press roll such that the press roll is covered with the reinforcing material impregnated with the matrix and filler. The arrangement is such that the surface characteristics of the resultant cover are dependent on the amount and type of filler material added to the matrix.
In a more specific embodiment of the present invention, the epoxy matrix is a polymeric thermo-plastic matrix.
In another embodiment of the present invention, the matrix is a polymeric thermo-set matrix.
The filler material is composed of either mineral particles, synthetic particles or refractory particles.
The particles in one embodiment of the invention have a diameter less than one (1 ) millimeter, and in another embodiment of the present invention, the particles have a diameter of at least one (1 ) millimeter.
In another embodiment of the present invention, the filler material includes PTFE powder, together with glass fibers. In yet another embodiment of the present invention, the filler material includes PTFE powder, together with ceramic fibers.
Additionally, in another embodiment of the present invention, the filler material includes PTFE powder, together with quartz fibers and feldspar particles.
The reinforcing material is either a woven material, a knitted material, a braided material or a non-woven material.
The step of spirally winding the reinforcing material is carried out during the cross-linking of the matrix. Many variations and modifications of the combination of method steps according to the present invention will be readily apparent to those skilled in the art by a consideration of the detailed description contained hereinafter. However, such modifications and Variations fall within the spirit and scope of the present invention as defined by the appended claims.
Brief Description of the Drawings
Figure 1 is a schematic view representing the step of feeding the epoxy matrix into a container and agitating the same;
Figure 2 is a similar view to that shown in Figure 1 , but shows filler material being added to the matrix while the matrix is being agitated;
Figure 3 is a similar view to that shown in Figure 2, but shows the agitated matrix and filler being conveyed to an application zone and being applied to reinforcing material being unwound from a roll of reinforcing material; and
Figure 4 is a perspective view showing a press roll being spirally wound with the reinforcing material and matrix and filler according to the present invention.
Detailed Description of the Drawings
Figure 1 is a schematic view illustrating a method of manufacturing a cover for a press roll shell according to the present invention. Figure 1 shows an epoxy matrix 10 disposed within a container 12. The epoxy matrix 10 is being agitated by an agitator 14.
Figure 2 is a similar view to that shown in Figure 1 , but shows filler material 16 being added to the matrix 10 while the matrix 10 is being agitated within the container 12.
Figure 3 is a similar view to that shown in Figure 2, but shows the agitated matrix 10 and filler 16 being conveyed and pumped via pump P to an application zone, generally designated 18.
A roll 20 of reinforcing material 22 is unwound, as indicated by the arrow 26, such that the reinforcing material 22 extends past the application zone 18.
The agitated matrix and filler 10 and 16 are applied, as indicated by the arrow 26, to the unwound material 22 during passage of the unwound material 22 past the application zone 18.
Figure 4 is a perspective view of a press roll 28 and shows the roll 28 being spirally wound with the reinforcing material 22, the matrix 10 and filler 16 having been previously applied to the reinforcing material 22. The arrangement is such that the press roll 28 is covered with the reinforcing material 22, which is impregnated with the matrix 10 and filler 16. The surface characteristics of the resultant cover are consequently dependent on the amount and type of filler material 16 added to the matrix.
In specific embodiments of the present invention, the matrix 10 is either a polymeric thermo-plastic matrix or a polymeric thermo-set matrix. The filler material 16 is either composed of mineral particles, synthetic particles or refractory particles.
In one embodiment of the present invention, the filler material 16 includes particles having a diameter of less than one (1 ) millimeter, and in another embodiment of the present invention, the filler material 16 includes particles having a diameter of at least one (1 ) millimeter.
Additionally, the filler material 16 includes either PTFE powder together with glass fibers, PTFE powder together with ceramic fibers, or PTFE powder together with quartz fibers and feldspar particles.
The reinforcing material 22 is either a woven material, a knitted material, a braided material or a non-woven material.
The step of spirally winding the reinforcing material 22 is carried out during the cross-linking of the matrix.
The present invention provides a method of manufacturing a roll cover which exhibits the required durometer hardness for the particular type of paper being pressed.
Such hardness of the cover is not only a requirement according to the type of paper being manufactured, but also a requirement according to the type of coating that will be applied thereto for subsequent calendering.
Additionally, roll covers of varying durometer hardness will be required dependent upon the type of furnish being used. Although the present invention has been described with particular application to the provision of a cover for a press roll, it will be appreciated by those skilled in the art that such roll covers will also be applicable in soft calendering and the like.

Claims

WHAT IS CLAIMED IS:
1 . A method of manufacturing a cover for a press roll, said method comprising the steps of: feeding an epoxy matrix (10) into a container (1 2); agitating the epoxy matrix (10); adding filler material (1 6) to the matrix (10) while the matrix is being agitated; conveying the agitated matrix and (10 filler (1 6) to an application zone (1 8); unwinding a roll (20) of reinforcing material (22) such that the unwound reinforcing material (22) extends past the application zone (1 8); applying the agitated matrix (1 0) and filler (1 6) to the unwound material (22) during passage of the unwound material past the application zone (1 8); and spirally winding the reinforcing material (22) with the matrix (10) and filler (1 6) applied thereto around the press roll (28) such that the press roll (28) is covered with the reinforcing material (22) impregnated with the matrix (10) and filler (1 6), the arrangement being such that the surface characteristics of the resultant cover are dependent on the amount and type of filler material added to the matrix.
2. A method of manufacturing a cover as set forth in claim 1 , wherein the feeding step includes: feeding a polymeric thermo-plastic matrix into the container (1 2).
3. A method of manufacturing a cover as set forth in claim 1 , wherein the feeding step includes: feeding a polymeric thermo-set matrix into the container (12).
4. A method of manufacturing a cover as set forth in claim 1 , wherein the step of adding filler material includes: adding mineral particles to the matrix (10).
5. A method of manufacturing a cover as set forth in claim 1 , wherein the step of adding filler material includes: adding synthetic particles to the matrix (10).
6. A method of manufacturing a cover as set forth in claim 1 , wherein the step of adding filler material includes: adding refractory particles to the matrix (10).
7. A method of manufacturing cover as set forth in claim 1 , wherein the step of adding filler material includes: adding material having a particle size less than one (1 ) millimeter in diameter.
8. A method of manufacturing cover as set forth in claim 1 , wherein the step of adding filler material includes: adding material having a particle size of at least one (1 ) millimeter in diameter.
9. A method of manufacturing a cover as set forth in claim 1 , wherein the step of adding filler material includes: adding PTFE powder, together with glass fibers.
10. A method of manufacturing a cover as set forth in claim 1 , wherein the step of adding filler material includes: adding PTFE powder, together with ceramic fibers.
1 1 . A method of manufacturing a cover as set forth in claim 1 , wherein the step of adding filler material includes: adding PTFE powder, together with quartz fibers, together with feldspar particles.
12. A method of manufacturing a cover as set forth in claim 1 , wherein the reinforcing material (22) is a woven material.
13. A method of manufacturing a cover as set forth in claim 1 , wherein the reinforcing material (22) is a knitted material.
14. A method of manufacturing a cover as set forth in claim 1 , wherein the reinforcing material (22) is a braided material.
15. A method of manufacturing a cover as set forth in claim 1 , wherein the reinforcing material (22) is a non-woven material.
16. A method of manufacturing a cover as set forth in claim 1 , wherein the step of spirally winding the reinforcing material (22) is carried out during the cross-linking of the matrix (10).
PCT/US1993/008537 1992-10-16 1993-09-09 A method of manufacturing a cover for a press roll WO1994009208A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP6509996A JP2881663B2 (en) 1992-10-16 1993-09-09 Method of manufacturing press roll cover
DE69314966T DE69314966T2 (en) 1992-10-16 1993-09-09 METHOD FOR PRODUCING A PRESS ROLL CLOTHING
EP93921473A EP0664843B1 (en) 1992-10-16 1993-09-09 A method of manufacturing a cover for a press roll

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US96263692A 1992-10-16 1992-10-16
US07/962,636 1992-10-16

Publications (1)

Publication Number Publication Date
WO1994009208A1 true WO1994009208A1 (en) 1994-04-28

Family

ID=25506169

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1993/008537 WO1994009208A1 (en) 1992-10-16 1993-09-09 A method of manufacturing a cover for a press roll

Country Status (5)

Country Link
EP (1) EP0664843B1 (en)
JP (1) JP2881663B2 (en)
CA (1) CA2146770A1 (en)
DE (1) DE69314966T2 (en)
WO (1) WO1994009208A1 (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5601920A (en) * 1995-04-06 1997-02-11 Stowe Woodward Licensco, Inc. Covered roll and a method for making the same
WO1998054405A1 (en) * 1997-05-30 1998-12-03 Valmet Corporation Thermoplastic-coated roll, method for manufacture of the roll, composition of thermoplastic coating, method of calendering by means of thermoplastic-coated rolls in accordance with the invention, and paper/board manufactured by means of such rolls
DE19729189A1 (en) * 1997-07-08 1999-01-14 Voith Sulzer Papiermasch Gmbh Press roller for the press section of a papermaking machine, to extract water from the wet web
WO1999063154A1 (en) * 1998-06-02 1999-12-09 Valmet Corporation Shell for a nip roll
EP1057928A2 (en) * 1999-06-02 2000-12-06 Voith Sulzer Papiertechnik Patent GmbH Soft roll and process for making such a roll
US6206994B1 (en) 1999-07-28 2001-03-27 Advanced Materials Corporation Method and apparatus for covering a metal roll core with a polymeric material preferable a high performance thermoplastic material
EP1116892A2 (en) * 2000-01-14 2001-07-18 Voith Paper Patent GmbH Soft roll and process for making such a roll
US6409645B1 (en) 1997-06-13 2002-06-25 Sw Paper Inc. Roll cover
US6514369B1 (en) 1999-07-28 2003-02-04 Advanced Materials Corporation Method for and devices used in covering a roll core with a resin infused fiber reinforced adhesive under layer and a polymeric top layer, the method including the use of an improved mold tape
EP1422341A2 (en) * 1999-07-28 2004-05-26 Advanced Materials Corporation Covered roll e.g. for calendering and method of forming the same
US6793754B1 (en) 1999-07-28 2004-09-21 Advanced Materials Corporation Covered roll having an under-layer formed of resin infused densely packed fibers that provides increased strength and adhesion properties
US6874232B2 (en) 2003-05-21 2005-04-05 Stowe Woodward, Llc Method for forming cover for industrial roll
EP1612329A1 (en) 2004-05-21 2006-01-04 Voith Paper Patent GmbH Roll cover made of fibre reinforced composite material
EP1956141A1 (en) * 2007-02-07 2008-08-13 Voith Patent GmbH Roll cover with friction-reducing filler
EP0864690B2 (en) † 1997-03-14 2009-01-07 Voith Patent GmbH Roller machine
WO2012156152A1 (en) * 2011-05-13 2012-11-22 Voith Patent Gmbh Corrosion-resistant roller coating
DE102012217413A1 (en) 2011-09-29 2013-04-04 Metso Paper, Inc. Rolling cover comprises epoxy-containing composition and has Shores D hardness in specified range
CN104220670A (en) * 2012-03-30 2014-12-17 福伊特专利公司 Method for producing a roll cover, and roll cover
US10287731B2 (en) 2005-11-08 2019-05-14 Stowe Woodward Licensco Llc Abrasion-resistant rubber roll cover with polyurethane coating

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10339443A1 (en) * 2003-04-11 2004-10-21 Dirk Richter Method for coating a roller with a coating formed from at least two components by mixing the two components under vacuum generally useful in applying coatings by means of a roller
JP5651847B2 (en) * 2011-04-06 2015-01-14 西武ポリマ化成株式会社 Manufacturing method of resin roll using cotton roll core metal for calendar

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3069304A (en) * 1959-11-16 1962-12-18 Freudenberg Carl Fa Method of providing a mandrel with a compact uniform covering
DE2330565A1 (en) * 1972-06-19 1974-01-17 Beloit Corp COVERED ROLLER FOR PAPER PRODUCTION
GB2057092A (en) * 1979-08-10 1981-03-25 Yamauchi Rubber Ind Co Ltd Rollers
EP0146342A2 (en) * 1983-12-15 1985-06-26 Kern Rubber Company Thermally conductive base layers for cast polyurethane roll covers
EP0487477A1 (en) * 1990-11-19 1992-05-27 Valmet Paper Machinery Inc. Method for coating of a roll, and a roll coating

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3069304A (en) * 1959-11-16 1962-12-18 Freudenberg Carl Fa Method of providing a mandrel with a compact uniform covering
DE2330565A1 (en) * 1972-06-19 1974-01-17 Beloit Corp COVERED ROLLER FOR PAPER PRODUCTION
GB2057092A (en) * 1979-08-10 1981-03-25 Yamauchi Rubber Ind Co Ltd Rollers
EP0146342A2 (en) * 1983-12-15 1985-06-26 Kern Rubber Company Thermally conductive base layers for cast polyurethane roll covers
EP0487477A1 (en) * 1990-11-19 1992-05-27 Valmet Paper Machinery Inc. Method for coating of a roll, and a roll coating

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0664843A1 *

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5780131A (en) * 1995-04-06 1998-07-14 Stowe Woodward Company Covered roll and a method for making the same
US5601920A (en) * 1995-04-06 1997-02-11 Stowe Woodward Licensco, Inc. Covered roll and a method for making the same
EP0864690B2 (en) † 1997-03-14 2009-01-07 Voith Patent GmbH Roller machine
US6493938B1 (en) 1997-05-30 2002-12-17 Metso Paper, Inc. Thermoplastic-coated roll, method for manufacture and calendering of the thermoplastic-coated roll for use in paper/board machines
WO1998054405A1 (en) * 1997-05-30 1998-12-03 Valmet Corporation Thermoplastic-coated roll, method for manufacture of the roll, composition of thermoplastic coating, method of calendering by means of thermoplastic-coated rolls in accordance with the invention, and paper/board manufactured by means of such rolls
US6409645B1 (en) 1997-06-13 2002-06-25 Sw Paper Inc. Roll cover
DE19729189A1 (en) * 1997-07-08 1999-01-14 Voith Sulzer Papiermasch Gmbh Press roller for the press section of a papermaking machine, to extract water from the wet web
WO1999063154A1 (en) * 1998-06-02 1999-12-09 Valmet Corporation Shell for a nip roll
EP1057928A2 (en) * 1999-06-02 2000-12-06 Voith Sulzer Papiertechnik Patent GmbH Soft roll and process for making such a roll
EP1057928A3 (en) * 1999-06-02 2001-11-21 Voith Paper Patent GmbH Soft roll and process for making such a roll
EP1422341A2 (en) * 1999-07-28 2004-05-26 Advanced Materials Corporation Covered roll e.g. for calendering and method of forming the same
US6206994B1 (en) 1999-07-28 2001-03-27 Advanced Materials Corporation Method and apparatus for covering a metal roll core with a polymeric material preferable a high performance thermoplastic material
US6514369B1 (en) 1999-07-28 2003-02-04 Advanced Materials Corporation Method for and devices used in covering a roll core with a resin infused fiber reinforced adhesive under layer and a polymeric top layer, the method including the use of an improved mold tape
US6793754B1 (en) 1999-07-28 2004-09-21 Advanced Materials Corporation Covered roll having an under-layer formed of resin infused densely packed fibers that provides increased strength and adhesion properties
EP1422341A3 (en) * 1999-07-28 2004-11-03 Advanced Materials Corporation Covered roll e.g. for calendering and method of forming the same
US6435244B1 (en) 1999-07-28 2002-08-20 Advanced Materials Corporation Apparatus for covering a metal roll core with a polymeric material, preferably a high performance thermoplastic material
EP1116892A3 (en) * 2000-01-14 2004-05-12 Voith Paper Patent GmbH Soft roll and process for making such a roll
EP1116892A2 (en) * 2000-01-14 2001-07-18 Voith Paper Patent GmbH Soft roll and process for making such a roll
US6811524B2 (en) 2000-01-14 2004-11-02 Voith Paper Patent Gmbh Elastic roll, process for producing such a roll, and process of repairing the roll
US6874232B2 (en) 2003-05-21 2005-04-05 Stowe Woodward, Llc Method for forming cover for industrial roll
EP1612329A1 (en) 2004-05-21 2006-01-04 Voith Paper Patent GmbH Roll cover made of fibre reinforced composite material
US10287731B2 (en) 2005-11-08 2019-05-14 Stowe Woodward Licensco Llc Abrasion-resistant rubber roll cover with polyurethane coating
EP1956141A1 (en) * 2007-02-07 2008-08-13 Voith Patent GmbH Roll cover with friction-reducing filler
WO2012156152A1 (en) * 2011-05-13 2012-11-22 Voith Patent Gmbh Corrosion-resistant roller coating
CN103534410A (en) * 2011-05-13 2014-01-22 沃依特专利有限责任公司 Corrosion-resistant roller coating
US9322132B2 (en) 2011-05-13 2016-04-26 Voith Patent Gmbh Corrosion-resistant roller coating
DE102012217413A1 (en) 2011-09-29 2013-04-04 Metso Paper, Inc. Rolling cover comprises epoxy-containing composition and has Shores D hardness in specified range
CN104220670A (en) * 2012-03-30 2014-12-17 福伊特专利公司 Method for producing a roll cover, and roll cover

Also Published As

Publication number Publication date
DE69314966T2 (en) 1998-03-26
EP0664843A1 (en) 1995-08-02
CA2146770A1 (en) 1994-04-28
DE69314966D1 (en) 1997-12-04
JPH07508566A (en) 1995-09-21
EP0664843B1 (en) 1997-10-29
JP2881663B2 (en) 1999-04-12

Similar Documents

Publication Publication Date Title
EP0664843B1 (en) A method of manufacturing a cover for a press roll
EP0273613A1 (en) Papermakers felt with a resin matrix surface
AU634924B1 (en) Reinforcement of coated surface of LNP belts
US4752519A (en) Papermakers felt with a resin matrix surface
EP0541583B1 (en) A blanket for an extended nip press with anisotropic woven base layers
US2838890A (en) Cellulosic product
GB2057092A (en) Rollers
AU658808B2 (en) Endless belt for dewatering press
CA2328968A1 (en) Supercalender roll with composite cover
US4931010A (en) Fabrics having hydrophilic and hydrophobic foams
EP0601012B1 (en) Roll cover apparatus
EP1073788B2 (en) Method for coating a press or transfer belt and a corresponding coated belt
CA2145965A1 (en) Press blanket
CA1266765A (en) Process for the production of a pliable roller
US4427736A (en) Anti-static dryer fabric
CA2212284A1 (en) Anisotropic reinforced ribbon-cast blanket for extended nip press
EP1534891B1 (en) Paper machine roll cover and method of covering a paper machine roll
JP3532269B2 (en) Pressure roller used in spinning preparation machine
EP1281808B1 (en) Elastic belt for papermaking calender
US5201978A (en) Method of fabricating a blanket for an extended nip press
CA1199768A (en) Foil manufacture
US4937102A (en) Fabrics having hydrophilic and hydrophobic coatings
AU6059098A (en) Functional epoxy-silicone coatings for paper machine clothings and a method of clothing same
SE9501411D0 (en) Press coat and ways to make one

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CA JP

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1993921473

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2146770

Country of ref document: CA

WWP Wipo information: published in national office

Ref document number: 1993921473

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 1993921473

Country of ref document: EP