EP0027716A1 - Trockenfilzgewebe - Google Patents

Trockenfilzgewebe Download PDF

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Publication number
EP0027716A1
EP0027716A1 EP80303637A EP80303637A EP0027716A1 EP 0027716 A1 EP0027716 A1 EP 0027716A1 EP 80303637 A EP80303637 A EP 80303637A EP 80303637 A EP80303637 A EP 80303637A EP 0027716 A1 EP0027716 A1 EP 0027716A1
Authority
EP
European Patent Office
Prior art keywords
machine direction
fabric
direction yarns
cross
yarns
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.)
Granted
Application number
EP80303637A
Other languages
English (en)
French (fr)
Other versions
EP0027716B1 (de
Inventor
Michael J. Josef
Eric R. Romanski
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.)
Albany International Corp
Original Assignee
Albany International Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22194594&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0027716(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Albany International Corp filed Critical Albany International Corp
Priority to AT80303637T priority Critical patent/ATE18451T1/de
Publication of EP0027716A1 publication Critical patent/EP0027716A1/de
Application granted granted Critical
Publication of EP0027716B1 publication Critical patent/EP0027716B1/de
Expired legal-status Critical Current

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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

Definitions

  • the invention relates to paper machine clothing and more particularly relates to fabrics useful as dryer felts, and their use.
  • the cross-machine direction yarns support the paper sheet being dried.
  • the monofilament machine direction yarns are thus protected from direct contact with degradative elements.
  • the overall operating life of the dryer felt is significantly increased over felts where the monofilament machine direction yarns are in contact with the paper sheet being dried.
  • the invention comprises a fabric for use as a paper machine dryer felt, which comprises;
  • Figure 1 is an enlarged, cross-sectional, side elevation of a portion of a fabric 10 embodying the invention.
  • the fabric 10 comprises a first sinuous layer 12 of monofilament cross-machine direction yarns 14.
  • the layer 12 forms a periphery of fabric 10 which in side profile shows peaks 16 and valley floors 18.
  • a plurality of at least two peaks 16 in layer 12 are in a single plane forming an outer periphery of fabric 10.
  • Preferably at least about 50 percent, most preferably all or substantially all of the peaks 16 are in the aforesaid plane.
  • Valley floors 18 are in a separate plane inside of the plane formed by the peaks 16. 1
  • a second sinuous layer 20 of monofilament cross-machine direction yarns 14' forms another periphery of the fabric 10 which also appears, in side profile, as peaks 16' and valley floors 18'.
  • a plurality of at least two of the peaks 16' are in a single plane forming the outer periphery (preferably at least about 50 percent, most preferably all of the peaks 16' are in the periphery).
  • Valley floors 18' are in a separate, single plane inside of the plane formed by peaks 16'.
  • a plurality of monofilament machine direction yarns 22 are positioned between the outer fabric periphery formed by the outside planes, formed by the peaks 16 and the peaks 16' and interweave with the cross-machine direction yarns'14, 14' at points between the respective planes of peaks 16, valley floors 18 and peaks 16', valley floors 18'.
  • the knuckles of load bearing machine direction yarns 22 are below the peaks 16, 16' at the point where they interweave with the cross-machine direction yarns 14, 14' and do not come into direct contact with the sheet 24 of paper carried on fabric 10, when fabric 10 is employed as a dryer fabric on a paper making machine.
  • the sheet 24 is supported on the peaks 16 of the cross-machine direction yarn 14.
  • the machine direction yarns 22 are also protected by the outwardly projecting peaks 16' from contact with elements of the paper making machine which might hasten abrasion or other degradation of the important load bearing mechine direction yarns.
  • the greatest degradation of yarns in a dryer fabric occurs in those monofilament yarns in contact with sheet 24.
  • fabrics where the yarns 22 are on the outer periphery of layer 20 where they pass through layer 20.
  • the machine direction yarns 22 within layer 12 are paired with the yarns 22 within layer 20 and the yarns within the pairs are slightly offset from each other in regard to vertical alignment, as they knuckle over the cross-machine direction yarns 14, 14'.
  • the machine direction yarns pass over at least one cross-machine direction yarn, under at least one following cross-machine direction yarn and over at least one further following cross-machine direction yarn of the upper cross-machine direction layer before running down to interconnect the lower cross ⁇ machine direction layer with the upper cross-machine direction layer, the machine yarns and cross-machine direction yarns being thus interconnected in a repeat pattern.
  • the weave will be such that the relationship of the machine direction yarns and the upper layer of cross-machine direction yarns will be such that the plane of the upper surfaces of the portions of the cross-machine direction yarns of the upper layer over which the machine direction yarns pass is relatively elevated in a direction away from the plane of the upper surface of the fabric; and the plane of the exposed upper surfaces of the portions of the machine direction yarns in the upper layer under which the cross-machine direction yarns pass is relatively depressed in the opposite direction, whereby the differences in elevation between the exposed upper surface portions of the machine direction yarns are protected from contact with paper sheet which contacts the surface of the cross-machine direction yarns in the upper layer.
  • the yarns 14, 14' and 22 may be monofilaments of any synthetic polymeric resin.
  • the yarns 14 and 14' may also be multifilament yarns.
  • Representative of such multi- and monofilaments are yarns of polyester, polyamide, pblyolefin, polyaramid, polyimide and the like. Generally such yarns having diameters of from 10 to 40 mils are advantageously employed in the fabrics of the invention.
  • the fabrics of the invention may be woven flat and the ends joined by conventional seaming methods, known to those skilled in the art.
  • the seamed belts eo made are readily employed as dryer felts in the dryer section 30 of a paper making machine as shown in Figure 2. As shown in Figure 2, the paper sheet 24 is held against the steam cylinders 32 by the endless belt 34 of fabric 10 during passage of sheet 24 through dryer section 30.
  • a fabric is prepared in a duplex weave of 0.020" diameter polyester monofilament (24 per inch) machine direction yarns and 0.020" diameter polyamide monofilament machine direction yarns (24 per inch) for a total of 48 machine direction yarns per inch interwoven with 0.020" diameter polyester monofilament (48 per inch; 24 top and 24 bottom) filling or cross-machine direction yarns.
  • a fabric is obtained having only cross-machine direction yarns in the outer plane of the fabric.
  • a representative portion of the fabric prepared is subjected to physical testing. The physical properties found are shown in Table I, below.
  • a fabric is woven in a duplex weave (4 warps and 8 pick repeat) with machine and cross-machine direction yarns as follows:
  • the fabric of the invention may be woven to include various stuffer picks, to obtain fabrics of different permeabilities as will be appreciated by those skilled in the art.

Landscapes

  • Paper (AREA)
  • Woven Fabrics (AREA)
EP80303637A 1979-10-17 1980-10-15 Trockenfilzgewebe Expired EP0027716B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80303637T ATE18451T1 (de) 1979-10-17 1980-10-15 Trockenfilzgewebe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8588379A 1979-10-17 1979-10-17
US85883 1979-10-17

Publications (2)

Publication Number Publication Date
EP0027716A1 true EP0027716A1 (de) 1981-04-29
EP0027716B1 EP0027716B1 (de) 1986-03-05

Family

ID=22194594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80303637A Expired EP0027716B1 (de) 1979-10-17 1980-10-15 Trockenfilzgewebe

Country Status (12)

Country Link
EP (1) EP0027716B1 (de)
JP (1) JPS5663092A (de)
AR (1) AR226563A1 (de)
AT (1) ATE18451T1 (de)
AU (1) AU541327B2 (de)
BR (1) BR8004757A (de)
CA (1) CA1144407A (de)
DE (1) DE3071465D1 (de)
FI (1) FI77493C (de)
MX (1) MX155248A (de)
SE (1) SE8007255L (de)
ZA (1) ZA805077B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2486549A1 (fr) * 1980-07-10 1982-01-15 Albany Int Corp Tissu destine a etre utilise comme feutre de sechage pour machine a papier, et feutre de sechage constitue de ce tissu
EP0046899A2 (de) * 1980-08-28 1982-03-10 Albany International Corp. Mehrschichtiges Papiermaschinengewebe mit niedriger Dichte
US5234551A (en) * 1981-09-24 1993-08-10 Dutt William H Extended nip press belt having an interwoven base fabric and an impervious impregnant
US5238537A (en) * 1981-09-15 1993-08-24 Dutt William H Extended nip press belt having an interwoven base fabric and an impervious impregnant

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8836751B2 (en) 2011-11-08 2014-09-16 Intouch Technologies, Inc. Tele-presence system with a user interface that displays different communication links

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB941964A (en) * 1960-05-18 1963-11-20 Appleton Wire Works Corp Fourdrinier fabric
US3211606A (en) * 1960-11-25 1965-10-12 Wisconsin Wire Works Paper making wire
DE1611765A1 (de) * 1968-01-24 1971-02-11 Oberdorfer Metalltuchfabrik F Verfahren zur Herstellung eines Papiermaschinensiebes und nach diesem Verfahren hergestelltes Sieb
US4041989A (en) * 1974-10-10 1977-08-16 Nordiska Maskinfilt Aktiebolaget Forming fabric and a method for its manufacture

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE397371C (sv) * 1976-02-24 1980-08-07 Nordiska Maskinfilt Ab Formeringsvira for pappers-, cellulosa- eller liknande maskiner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB941964A (en) * 1960-05-18 1963-11-20 Appleton Wire Works Corp Fourdrinier fabric
US3211606A (en) * 1960-11-25 1965-10-12 Wisconsin Wire Works Paper making wire
DE1611765A1 (de) * 1968-01-24 1971-02-11 Oberdorfer Metalltuchfabrik F Verfahren zur Herstellung eines Papiermaschinensiebes und nach diesem Verfahren hergestelltes Sieb
US4041989A (en) * 1974-10-10 1977-08-16 Nordiska Maskinfilt Aktiebolaget Forming fabric and a method for its manufacture

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2486549A1 (fr) * 1980-07-10 1982-01-15 Albany Int Corp Tissu destine a etre utilise comme feutre de sechage pour machine a papier, et feutre de sechage constitue de ce tissu
EP0046899A2 (de) * 1980-08-28 1982-03-10 Albany International Corp. Mehrschichtiges Papiermaschinengewebe mit niedriger Dichte
EP0046899A3 (en) * 1980-08-28 1982-03-17 Albany International Corp. Low density multilayer papermaking fabrics
US4359069A (en) * 1980-08-28 1982-11-16 Albany International Corp. Low density multilayer papermaking fabric
US5238537A (en) * 1981-09-15 1993-08-24 Dutt William H Extended nip press belt having an interwoven base fabric and an impervious impregnant
US5234551A (en) * 1981-09-24 1993-08-10 Dutt William H Extended nip press belt having an interwoven base fabric and an impervious impregnant

Also Published As

Publication number Publication date
FI77493C (fi) 1989-03-10
JPH0143078B2 (de) 1989-09-18
DE3071465D1 (en) 1986-04-10
BR8004757A (pt) 1981-04-28
ATE18451T1 (de) 1986-03-15
AR226563A1 (es) 1982-07-30
ZA805077B (en) 1981-09-30
SE8007255L (sv) 1981-04-18
MX155248A (es) 1988-02-08
FI77493B (fi) 1988-11-30
FI803255L (fi) 1981-04-18
JPS5663092A (en) 1981-05-29
EP0027716B1 (de) 1986-03-05
CA1144407A (en) 1983-04-12
AU541327B2 (en) 1985-01-03
AU6295980A (en) 1981-04-30

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