WO1980001086A1 - Feutres pour la fabrication du papier - Google Patents

Feutres pour la fabrication du papier Download PDF

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Publication number
WO1980001086A1
WO1980001086A1 PCT/GB1979/000185 GB7900185W WO8001086A1 WO 1980001086 A1 WO1980001086 A1 WO 1980001086A1 GB 7900185 W GB7900185 W GB 7900185W WO 8001086 A1 WO8001086 A1 WO 8001086A1
Authority
WO
WIPO (PCT)
Prior art keywords
base fabric
batt
base
fabric
felt
Prior art date
Application number
PCT/GB1979/000185
Other languages
English (en)
Inventor
R Lord
Original Assignee
Scapa Porritt Ltd
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 Scapa Porritt Ltd filed Critical Scapa Porritt Ltd
Publication of WO1980001086A1 publication Critical patent/WO1980001086A1/fr

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

  • the invention concerns papermaking machine and like clothing, and has more particular, though not exclusive, reference to felts for use in the press-sections of papermaking machines, board-making machines, asbestos cement sheet-making machines and the like. STATE OF THE ART
  • the batt in this latter style of felt comprises some 2/3 of the weight of the finished felt, whereas with a spun yarn base, the batt would typically comprise some 1/3 of the weight of the finished felt.
  • the use of a greater weight of batt has made it particularly practical also to make felts with a different batt blend in the centre of the felt sandwiched between the mesh base and the surface batt.
  • the surface batt will typically incorporate fibres similar in diameter to surface fibres used when a single batt blend is employed - generally in the range from 6 denier to 15 denier - whereas the batt fibres sandwiched between the base and the surface batt would be coarser and in the range from 15 to 80 denier.
  • a typical felt with a monofilament mesh base would have 10 denier fibre in the surface batt and 40 denier fibre between the surface and the base, the objective of the coarser felt centre being to allow the easier passage of filling materials and to impart extra resilience due to the more springy nature of the thicker fibres.
  • the increased batt content of the felts with monofil base fabrics has caused problems because it is more difficult to produce a sufficiently regular batt of fibres than it is to produce a regular woven structure.
  • the difficulty in producing a regular batt of fibres increases with the coarseness of the fibres. There is, therefore, more tendency for press bumping to take place in demanding applications when employing a lighter weight base fabric with a greater batt weight, although the water removal properties and their inherent facility for keeping clean make felts with coarse denier fibres sandwiched between the surface fibres and the base fabric particularly acceptable for a wide range of papermaking applications.
  • the primary object of the invention is to provide a felt wherein the advantages arising from the presence of coarse denier fibres in the centre of the felt are preserved even in the context of the more demanding presses and the need, in such context, for increased regularity in order to cope with the very high specific line pressures, although the invention is by no means confined to felts for use in connection with such demanding conditions.
  • a base fabric for use in the manufacture of a batt-on-base type papermaker's felt, the said base fabric comprising a coherent base structure and a layer of substantially twist-free multifilament tow formed integrally therewith and provided at a face thereof to define an outer surface of the said fabric.
  • a papermaker's felt comprising a coherent base fabric and a fibrous batt needled to such fabric is characterised in that that face of the base fabric to which the batt is applied is defined by substantially twist-free multifilament tow, the said tow being embodied in the base fabric during the formation of such fabric.
  • the method of producing a papermaker's felt of the batt-on-base type characterise by the step of incorporating a layer of substantially twist-free multifilament tow in the base fabric during the manufacture thereof, the said multifilament tow existing at and defining an outer surface of the base fabric and the batt being needled to the said outer surface.
  • the base fabric will usually comprise a woven structure in which the tow is embodied as an integral part thereof.
  • the tow is woven into the surface of a base cloth in such a way that it can spread so as substantially to cover the surface of the base fabric.
  • Coarse filaments introduced as tow at the face of a woven base cloth can be much more regularly arranged than can fibres of similar diameter be prepared into a batt and then needled into the surface of a base fabric.
  • the base yarns in a conventional monofilament base do not lead themselves to the easy attachment of batt fibres by needling, the provision of an even layer of coarse filaments at the surface of the base fabric improves the facility with which a batt may be attached to that surface by needling.
  • a base fabric containing yarns of twisted and/or single monofilaments in the intended machine and the cross-machine directions of the papermaking machine and incorporating in its surface and substantially covering its surface a layer of virtually twistless tow containing individual filaments of 40 denier will weigh about 580 g/m 2 .
  • the total felt weight will be around 1300g/m 2 .
  • the weight of the coarse continuous filamentary tow will not be less than 100 g/m 2 of finished felt, whilst the weight of the woven base fabric will comprise not less than 45% by weight of the finished felt.
  • the components of the base fabric additional to the continuous filamentary tow are monofilaments of not less than 0.12mm average diameter, which monofilaments may or may not be twisted together.
  • the coarse filaments will be woven into the surface of the base fabric in alignment with the intended running or machine direction of the felt on the papermaking machine, although the invention is not limited to such disposition of the coarse filaments in that the benefits of the invention are thought likely to arise from the inclusion of filamentary tow in either or both of the machine and cross-machine directions of the felt for the subsequent attachment thereto of a batt of filamentary material.
  • the layer of surface fibres needled to the base fabric will usually comprise fibres averaging between 6 and 18 denier, and preferably averaging approximately 10 denier, although coarser fibres may be used if specific circumstances require.
  • Fig. 1 is a cross-section taken in the running, or machine, direction of a base fabric constructed in accordance with the invention
  • Fig. 2 is a cross-section of the base fabric shown in Fig. 1 taken in the cross-machine direction; and Fig. 3 is a view corresponding to Fig. 1, and shows the base fabric of Figs. 1 and 2 as embodied in a papermaker's press felt.
  • a base fabric for use in the production of a press-felt for use in the press-section of a papermaking machine comprises a semi-duplex weave structure of which one machine direction layer 11 comprises 22 threads per inch of continuous filamentary tow 12 each of some 2400 denier in which the individual filaments are of 40 denier, while the other machine direction layer 13 comprises 22 threads per inch of 0.20 mm diameter nylon monofilament yarns 14 twisted two-ply and then three-ply.
  • the cross-machine direction yarns 15 are 0.20 mm diameter nylon monofilaments twisted two-ply and again two-ply and spaced at 21 threads per inch.
  • the woven base fabric 11 is subjected to a needling process in order to attach to its tow-faced side a batt 16 (see Fig. 3) of 10 denier nylon fibres which form the surface of the felt.
  • the felt is finished by washing, drying and heat-setting following which it comprises
  • the machine direction layer 11 comprises 20 threads per inch of continuous filamentary tow 12 each of some 4800 denier in which the individual filaments are of 40 denier, while the other machine direction layer 13 comprises 20 threads per inch of 0.20mm diameter nylon monofilament yarns 14 twisted two-ply and then five-ply.
  • the cross-machine direction yarns 15 are 0.20mm diameter nylon monofilaments twisted two-ply and again two-ply and spaced at 21 threads per inch.
  • the woven base fabric 11 is subjected to a needling process in order to attach to its tow-faced side a batt 16
  • the embodiments disclosed are endless woven fabrics, wherein the weft yarns of the fabrics, as they exist in the weaving loom, extend in the running or machine direction in the papermaking machine, the invention is also of application to flat woven fabrics. Whilst the invention has been described in the context of a semi-duplex weave, such invention is also of application to other weave structures, whether of single or multi-layer type.
  • the base fabric may itself comprise multifilamentary tow in either or both of the warp and weft directions thereof.
  • filamentary tow at one face of the base fabric, it is to be understood that, in the event that a batt is to be applied to each surface, such filamentary tow may, if desired, exist at each face of the base fabric.

Landscapes

  • Paper (AREA)
  • Filtering Materials (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Abstract

Une etoffe de base pour la production d'un feutre presse du type "nappe sur base" pour une machine a fabriquer du papier, dans laquelle une couche (11) de cable a multi-filaments (12) est prevue en tant que partie integrante de l'etoffe de base et sur la face de laquelle la nappe (16) doit etre appliquee, comme par aiguilletage. Dans une mise en oeuvre preferee, l'etoffe de base comprend une armure semi-duplex et le cable a multi-filaments (12) est prevu en tant qu'une des couches des deux directions de machine de telles armures et definit une face de l'etoffe de base resultante. Est egalement decrit un feutre presse englobant une etoffe de base comme ci-dessus et le procede de fabrication de tels feutres presses.
PCT/GB1979/000185 1978-11-15 1979-11-09 Feutres pour la fabrication du papier WO1980001086A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB7844652 1978-11-15
GB7844652 1978-11-15
GB7845881 1978-11-23

Publications (1)

Publication Number Publication Date
WO1980001086A1 true WO1980001086A1 (fr) 1980-05-29

Family

ID=26269590

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1979/000185 WO1980001086A1 (fr) 1978-11-15 1979-11-09 Feutres pour la fabrication du papier

Country Status (7)

Country Link
EP (1) EP0020556A1 (fr)
AU (1) AU5281779A (fr)
ES (1) ES485987A0 (fr)
FI (1) FI793567A (fr)
IT (1) IT1195747B (fr)
NO (1) NO793682L (fr)
WO (1) WO1980001086A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4562869A (en) * 1983-02-03 1986-01-07 Chemie Linz Aktiengesellschaft Heat-sterilizable blanket, and a process for its manufacture
EP0287297A1 (fr) * 1987-04-15 1988-10-19 Albany Research (Uk) Limited Feutre pour machine à papier
EP0964088A2 (fr) * 1998-06-12 1999-12-15 Weavexx Corporation Tissu de formage pour articles en fibrociment
EP1184511A2 (fr) * 2000-08-21 2002-03-06 Huyck Austria Ges. m.b.H. Feutre pour papeterie
EP1462569A2 (fr) * 2003-03-27 2004-09-29 Voith Fabrics Patent GmbH Feutre de presse
EP2204492A1 (fr) * 2007-09-18 2010-07-07 Ichikawa Co., Ltd. Feutre pour fabrication de papier
US9415564B2 (en) 2011-07-06 2016-08-16 Huyck Licensco, Inc. Felt for forming fiber cement articles and related methods
EP4311668A3 (fr) * 2020-04-21 2024-04-10 NIKE Innovate C.V. Textile ayant des zones d'isolation et des zones de poils

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB732048A (en) * 1951-12-28 1955-06-15 Thomas Adam Clayton Improvements in textile fabrics
US2757435A (en) * 1951-09-28 1956-08-07 Trubenised Company Fused fabric assemblies
US2996786A (en) * 1958-08-21 1961-08-22 Lockport Felt Company Inc Papermaker's felt
US3094149A (en) * 1960-11-14 1963-06-18 Orr Felt & Blanket Company Paper makers felt
DE1410684A1 (de) * 1956-08-07 1968-11-28 Kimberly Clark Co Weitmaschiges Fadengewebe
FR2020058A1 (fr) * 1968-10-07 1970-07-10 Nordiska Maskinfilt Ab
GB1220531A (en) * 1967-01-31 1971-01-27 Nordiska Maskinfilt Ab A machine cloth for the paper making, the cellulose, the asbestos-cement-industries and similar industries and cloth for filtering purposes at said and other industries
UST941015I4 (en) * 1973-04-04 1975-12-02 Defensive publication

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2757435A (en) * 1951-09-28 1956-08-07 Trubenised Company Fused fabric assemblies
GB732048A (en) * 1951-12-28 1955-06-15 Thomas Adam Clayton Improvements in textile fabrics
DE1410684A1 (de) * 1956-08-07 1968-11-28 Kimberly Clark Co Weitmaschiges Fadengewebe
US2996786A (en) * 1958-08-21 1961-08-22 Lockport Felt Company Inc Papermaker's felt
US3094149A (en) * 1960-11-14 1963-06-18 Orr Felt & Blanket Company Paper makers felt
GB1220531A (en) * 1967-01-31 1971-01-27 Nordiska Maskinfilt Ab A machine cloth for the paper making, the cellulose, the asbestos-cement-industries and similar industries and cloth for filtering purposes at said and other industries
FR2020058A1 (fr) * 1968-10-07 1970-07-10 Nordiska Maskinfilt Ab
UST941015I4 (en) * 1973-04-04 1975-12-02 Defensive publication

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4562869A (en) * 1983-02-03 1986-01-07 Chemie Linz Aktiengesellschaft Heat-sterilizable blanket, and a process for its manufacture
EP0287297A1 (fr) * 1987-04-15 1988-10-19 Albany Research (Uk) Limited Feutre pour machine à papier
EP0964088A2 (fr) * 1998-06-12 1999-12-15 Weavexx Corporation Tissu de formage pour articles en fibrociment
EP0964088A3 (fr) * 1998-06-12 1999-12-22 Weavexx Corporation Tissu de formage pour articles en fibrociment
AU781772B2 (en) * 2000-08-21 2005-06-09 Huyck Austria Ges.M.B.H. Felt
EP1184511A2 (fr) * 2000-08-21 2002-03-06 Huyck Austria Ges. m.b.H. Feutre pour papeterie
EP1184511A3 (fr) * 2000-08-21 2002-05-15 Huyck Austria Ges. m.b.H. Feutre pour papeterie
EP1462569A2 (fr) * 2003-03-27 2004-09-29 Voith Fabrics Patent GmbH Feutre de presse
EP1462569A3 (fr) * 2003-03-27 2004-12-01 Voith Fabrics Patent GmbH Feutre de presse
US7118651B2 (en) 2003-03-27 2006-10-10 Voith Fabrics Heidenheim Gmbh & Co. Kg Press felt
EP2204492A1 (fr) * 2007-09-18 2010-07-07 Ichikawa Co., Ltd. Feutre pour fabrication de papier
EP2204492A4 (fr) * 2007-09-18 2013-10-02 Ichikawa Co Ltd Feutre pour fabrication de papier
US9415564B2 (en) 2011-07-06 2016-08-16 Huyck Licensco, Inc. Felt for forming fiber cement articles and related methods
EP4311668A3 (fr) * 2020-04-21 2024-04-10 NIKE Innovate C.V. Textile ayant des zones d'isolation et des zones de poils

Also Published As

Publication number Publication date
AU5281779A (en) 1980-05-22
IT7927259A0 (it) 1979-11-13
EP0020556A1 (fr) 1981-01-07
IT1195747B (it) 1988-10-27
ES8202378A1 (es) 1980-09-01
FI793567A (fi) 1980-05-16
ES485987A0 (es) 1980-09-01
NO793682L (no) 1980-05-19

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