EP0239207A2 - Procédé de fabrication d'un feutre de papeterie - Google Patents

Procédé de fabrication d'un feutre de papeterie Download PDF

Info

Publication number
EP0239207A2
EP0239207A2 EP87301062A EP87301062A EP0239207A2 EP 0239207 A2 EP0239207 A2 EP 0239207A2 EP 87301062 A EP87301062 A EP 87301062A EP 87301062 A EP87301062 A EP 87301062A EP 0239207 A2 EP0239207 A2 EP 0239207A2
Authority
EP
European Patent Office
Prior art keywords
batt
scrim
melting point
layer
needling
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
EP87301062A
Other languages
German (de)
English (en)
Other versions
EP0239207A3 (fr
Inventor
Patrick H. Penven
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.)
Asten Inc
Original Assignee
Asten 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 Asten Inc filed Critical Asten Inc
Publication of EP0239207A2 publication Critical patent/EP0239207A2/fr
Publication of EP0239207A3 publication Critical patent/EP0239207A3/fr
Ceased legal-status Critical Current

Links

Images

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
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation

Definitions

  • the fabric of the instant invention is intended for use in the papermaking industry and finds particular application in the wet press and dryer sections of papermaking equipment.
  • the fabric is a carrying or conveying means which is intended for use in applications requiring either an endless or flat woven fabric.
  • fabrics of the instant invention are frequently referred to as felts, when used in the wet press or dryer section, since they generally comprise a carrier fabric or layer which runs in contact with the equipment and a felt surface which runs in contact with the paper.
  • the difficulty with the prior art approach comes in applying the batt or felt surface to'the under layer and in obtaining a batt of sufficient density in an economic manner without damaging the under layer fabric during the needling operation.
  • the present invention provides a solution to the prior art problem of producing a high density papermakers felt having an undamaged under layer in an economic manner.
  • the present invention provides these improvements by providing a batt which is comprised of a non-woven low melt scrim to which the batt material is initially needled. Subsequent to producing a batt of the required density, the batt is then needled or adhered to the under layer fabric. The completed felt will be subjected a heat pressing operation which will elevate the temperature of the batt to a temperature above the softening temperature of the scrim but below the melting point of the batt fibers. In this manner, the batt and under layer fabric are unified to produce the papermakers felt with minimum effort and disruption of the under layer.
  • the batt 2 is comprised of a scrim 4 which is surrounded by batting material 6 which in the illustration is initially provided as upper layer 8 and lower layer 10. If desired, the batting material 6 may be provided as one or more upper layers 8 with or without lower layer 10.
  • the scrim 4 is preferably comprised of a low melt synthetic material such as polypropylene which has a softening point of about 285 0 to 330° F. and a melting point of about 320° to 350° F. Other synthetic materials may be selected so long as they have a melting point below that of the batt material 6.
  • the scrim material 4 has a generally regular lattice configuration, however, such a regular configuration is not a requirement, although it is preferred.
  • the regular lattice configuration is preferred since it provides a measure of predictability with respect to the location of the scrim within the batt 2 and does not adversely effect the required moisture absorption or permeability of the batt. It is expected that the scrim will have a finer mesh, more interstices per square inch, in certain applications in which it is desired to reduce marking.
  • the interstices of the scrim 4 it should be noted that there is no required open area for the interstices but the scrim should be selected with interstices which will not adversely effect the felts' performance in the areas of moisture absorption, making and/or permeability.
  • the scrim 4 will be selected so as to provide sufficient area for fiber retention while preserving the felt characteristics.
  • the interstices of the scrim 4 are about one quarter inch squares and the scrim is approximately 15 mils thick.
  • the scrim may be purchased in sheet form or may be made by laying suitable yarns in a lattice work which is then unified by heat setting or ultrasonic means. It will be understood by those skilled in the art that the yarns forming the scrim need not be bonded at each of the intersections but should be bonded in amounts sufficient to permit handling of the scrim.
  • the batting material 6 which is shown as comprised of an upper layer 8 and a lower layer 10 prior to needling about scrim 4
  • the initial batt layers 8 and 10 may be formed through the usual needling processes.
  • the batt material 10 prior to needling with the scrim 4 may comprise a roving of fibers which is placed over the scrim and needled thereto.
  • a blanket of roving may be used in place of individual rovings.
  • FIG. 1 With reference to Figure 2, there is shown a means for producing the batt of Figure 1.
  • a first supply roll 20 of scrim material is provided and a second supply roll 22 of batt material is provided in close proximity thereto. Both of these materials are provided in unison over a support bed 24 which is positioned below a needling head 26.
  • Needling heads such as 26 are known to those skilled in the art and one example thereof is shown in U.S. Patent Re. 21,890.
  • the materials are presented simultaneously to needling head 26 and are needled in accordance with fabric design to achieve the required density. Subsequent to needling, the material is rewound on supply roll 28.
  • the supply roll is then positioned at 20 so that the material discharged from the roll will present the scrim in a face up position towards needling head 26.
  • a second layer of batt is then applied in the same manner as the first. This procedure may continue until such time as the desired thickness for the batt material is achieved.
  • the batt produced in accordance with the above may be further provided with another scrim layer and additional batt material or initially provided with two scrims or more.
  • two scrim layers 4 are provided in the final needled batt.
  • the scrim layers are separated by batt material.
  • the scrim layers are adjacent to each other.
  • the needling process must accomplish sufficient depth of needling to provide the desired uniformity and that the respective layers of batt material 6 will be fully unified and stabilized in the heat treatment process.
  • the scrims may be vertically aligned, such as Figure 5, or staggered, such as Figure 6, depending upon the desired application.
  • the scrim provides a secure base work which prevents excessive fiber migration as a result of the needling operation.
  • a more uniformed higher density homogeneous batt is obtained.
  • the batt may be subjected to a heat pressing operation at a temperature below the melting point of the batt fibers but at a temperature sufficient to cause softening or melting (flowing) of the scrim.
  • the temperature will generally exceed the heat setting temperature of the scrim and must be sufficient to result in tackiness of the scrim. It will be further understood that such a temperature may be achieved without a complete melting or flowing of the scrim. It will likewise be understood that the scrim may undergo shape deformation as a result of the heat treatment and that the drawing figures are merely illustrative of the invention.
  • the scrim As a result of the heat treatment of the scrim, it will adhere to the batt fibers and increase the adhesion between the batt materials. In this manner, the scrim will add to the strength of the batt and reduce the likelihood that the batt will experience fiber migration or layer separation during use. As can be seen from the foregone, the scrim provides a denser batt, a more uniformed or homogeneous batt and a batt having greater tenacity than the prior art batts.
  • Batt 2 and under layer 30 may be unified through a needling process, such as that described with reference to Figure 2 and known to those skilled in the art, or may be unified through the application of adhesives between the batt 2 and under layer 30.
  • the application of such adhesives to the batt will be also known to those skilled in the art as exemplified by U.S. Patent 4,528,236.
  • FIG. 4 With reference to Figure 4 there is shown a batt 2 according to the instant invention adhered to a non-woven under layer 40 formed of a plurality of helices interconnected by pintles.
  • the fabric of Figure 4 may be unified in accordance with the method discussed with reference to Figure 2 or by the application of adhesives. Once again, the methods of unifying the fabric will be known to those skilled in the art and is exemplified by U.S. Patent 4,528,236.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Nonwoven Fabrics (AREA)
EP87301062A 1986-03-26 1987-02-06 Procédé de fabrication d'un feutre de papeterie Ceased EP0239207A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84408886A 1986-03-26 1986-03-26
US844088 1986-03-26

Publications (2)

Publication Number Publication Date
EP0239207A2 true EP0239207A2 (fr) 1987-09-30
EP0239207A3 EP0239207A3 (fr) 1989-11-08

Family

ID=25291781

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87301062A Ceased EP0239207A3 (fr) 1986-03-26 1987-02-06 Procédé de fabrication d'un feutre de papeterie

Country Status (6)

Country Link
EP (1) EP0239207A3 (fr)
JP (1) JPS62257452A (fr)
AU (1) AU593626B2 (fr)
CA (1) CA1292633C (fr)
FI (1) FI870804A7 (fr)
NZ (1) NZ219235A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0266853B1 (fr) * 1986-11-06 1992-05-13 ASTEN GROUP INC. (a Delaware corporation) Feutre de presse humide pour machine à papier ayant un tissu de base à plusieurs couches
DE4040861A1 (de) * 1990-12-20 1992-07-02 Munzinger Conrad & Cie Ag Pressfilz sowie verfahren zu dessen herstellung
WO1995022645A1 (fr) * 1994-02-18 1995-08-24 Kuangfei Wang Materiau stratifie adiathermique et son procede de fabrication
EP0741204A2 (fr) 1995-05-04 1996-11-06 Huyck Licensco, Inc. Toile de presse pour papeterie
EP0849388A1 (fr) * 1995-06-27 1998-06-24 AM Medical Fabrics Limited Méthode de fabrication d'une étoffe non-tissée et produits obtenus
WO2003076046A3 (fr) * 2002-03-09 2004-01-22 Voith Fabrics Heidenheim Gmbh Tissus industriels
WO2015055619A1 (fr) * 2013-10-18 2015-04-23 Bonar B.V. Procédé pour fournir une matière de support
WO2015164317A1 (fr) * 2014-04-25 2015-10-29 Huyck Licensco Inc. Feutre de presse de papetier cousu ayant une couche de nappage renforcée
CN114645483A (zh) * 2022-02-21 2022-06-21 江苏金呢工程织物股份有限公司 一种复合造纸毛毯及其制备方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7455752B2 (en) * 2004-07-22 2008-11-25 Albany International Corp. Semi-permeable fabrics for transfer belt and press fabric applications
JP7053416B2 (ja) * 2018-09-13 2022-04-12 日本フエルト株式会社 製紙用フェルト

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE557442A (fr) *
GB1490516A (en) * 1974-10-08 1977-11-02 Grylls R Fabrics
US4427734A (en) * 1982-04-19 1984-01-24 Albany International Corp. Wet press felt for papermaking machines
FI64960C (fi) * 1982-10-08 1984-02-10 Tamfelt Oy Ab Transportfilt foer papperstillverkning och foerfarande foer des tillverkning
CA1251124A (fr) * 1983-08-11 1989-03-14 Asten, Inc. Methode de liaisonnement entre une couche permeable et un tissu-dossier fait de fibres entrelacees, et toiles de machine a papier ou autres couches filtrantes ainsi obtenues
US4528236A (en) * 1984-08-10 1985-07-09 Asten Group, Inc. Laminated soft faced-spiral woven papermakers fabric

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0266853B1 (fr) * 1986-11-06 1992-05-13 ASTEN GROUP INC. (a Delaware corporation) Feutre de presse humide pour machine à papier ayant un tissu de base à plusieurs couches
DE4040861A1 (de) * 1990-12-20 1992-07-02 Munzinger Conrad & Cie Ag Pressfilz sowie verfahren zu dessen herstellung
DE4040861C3 (de) * 1990-12-20 2001-02-01 Conrad Munzinger & Cie Ag Olte Preßfilz sowie Verfahren zu dessen Herstellung
WO1995022645A1 (fr) * 1994-02-18 1995-08-24 Kuangfei Wang Materiau stratifie adiathermique et son procede de fabrication
EP0741204A2 (fr) 1995-05-04 1996-11-06 Huyck Licensco, Inc. Toile de presse pour papeterie
EP0849388A1 (fr) * 1995-06-27 1998-06-24 AM Medical Fabrics Limited Méthode de fabrication d'une étoffe non-tissée et produits obtenus
WO2003076046A3 (fr) * 2002-03-09 2004-01-22 Voith Fabrics Heidenheim Gmbh Tissus industriels
WO2015055619A1 (fr) * 2013-10-18 2015-04-23 Bonar B.V. Procédé pour fournir une matière de support
US10112365B2 (en) 2013-10-18 2018-10-30 Low & Bonar B.V. Method for providing a carrier material
WO2015164317A1 (fr) * 2014-04-25 2015-10-29 Huyck Licensco Inc. Feutre de presse de papetier cousu ayant une couche de nappage renforcée
CN114645483A (zh) * 2022-02-21 2022-06-21 江苏金呢工程织物股份有限公司 一种复合造纸毛毯及其制备方法

Also Published As

Publication number Publication date
AU7062587A (en) 1987-10-01
FI870804A7 (fi) 1987-09-27
EP0239207A3 (fr) 1989-11-08
AU593626B2 (en) 1990-02-15
JPS62257452A (ja) 1987-11-10
CA1292633C (fr) 1991-12-03
FI870804A0 (fi) 1987-02-25
NZ219235A (en) 1988-06-30

Similar Documents

Publication Publication Date Title
US4806413A (en) Papermaker's felt containing scrim material
CA1223764A (fr) Feutre de machine a papier
US4119753A (en) Papermaker's felt with grooved surface
DE69709115T2 (de) Verwendung eines filzes mit einer membran in einer yankee-papiermaschine
EP0227375B1 (fr) Rouleau en fibres de polyoléfine et sa méthode de fabrication
US4446187A (en) Sheet assembly and method of manufacturing same
EP0239207A2 (fr) Procédé de fabrication d'un feutre de papeterie
JP4105698B2 (ja) プレスフェルトを製造する方法および閉じたループの形状を有するプレスフェルト
US4851281A (en) Papermakers' felt having compressible elastomer elements and methods of producing same
JP2003313792A (ja) 抄紙機用布およびその製造方法
CA1303833C (fr) Procede de fabrication de feutre a patte et feutre ainsi produit
TWI248996B (en) Anti-rewet press fabric
MXPA06006321A (es) Material de fibra no tejida orientado direccionalmente de capa multiple y metodos para la manufactura del mismo.
US3138514A (en) Plural ply padding discontinuously bonded and method of manufacture
US5202170A (en) Papermaking felt with a non-spiralled machine direction fiber batt
US20080248279A1 (en) Paper machine fabrics
JPS5921765A (ja) 鉱物繊維からニ−ドルパンチされた繊維ブランケツトを製造する方法およびこの方法により製造された繊維ブランケツト
US7674356B2 (en) Paper machine belt
EP0943730B1 (fr) Tissu poreux à plusieurs couches
US5843557A (en) Conformable structural reinforcement substrate and method of making same
US4690839A (en) Method for manufacturing thick asphalt sheet
US2355333A (en) Reinforced waterproofing sheet material
EP0789101A2 (fr) Procédé de production d'un matériau filtrant
US311223A (en) billings
CN119036962A (zh) 一种聚酯无纺布玻璃纤维复合阻燃毡及其制备工艺

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RHK1 Main classification (correction)

Ipc: D21F 7/08

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19900504

17Q First examination report despatched

Effective date: 19910801

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19921001

RIN1 Information on inventor provided before grant (corrected)

Inventor name: PENVEN, PATRICK H.