SE462859B - PRESS FELT - Google Patents
PRESS FELTInfo
- Publication number
- SE462859B SE462859B SE8902337A SE8902337A SE462859B SE 462859 B SE462859 B SE 462859B SE 8902337 A SE8902337 A SE 8902337A SE 8902337 A SE8902337 A SE 8902337A SE 462859 B SE462859 B SE 462859B
- Authority
- SE
- Sweden
- Prior art keywords
- yarns
- felt
- threads
- loops
- fabric
- Prior art date
Links
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
- D21F1/0054—Seams thereof
-
- 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
-
- 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
Landscapes
- Paper (AREA)
- Woven Fabrics (AREA)
Description
462 859 - 2 Fig. 3 visar en schematisk planskiss över vävnadens söm med _monterad låstråd. 462 859 - 2 Fig. 3 shows a schematic plan sketch of the tissue seam with _mounted locking wire.
I fig. 1 visas således en vävnad bestående av två lager garner 1 och 2 som bildar inslagstrâdar vid vävningen. Vidare inväves ett grövre garn 3 på den sida av vävnaden som bildar avvatt- ningssidan. Garnerna 3 har en vikt per längdenhet som är minst dubbelt så stor som garnerna 1 och 2. De grövre garner- nac3 bildar ett övre skikt och.detta skikt ger den önskade präglingen av cellulosamassan. Exemplet är trådarnas 3 bind- ning med mönstret 4-skaft korskypert i tvâ rapporter. Pâ i och för sig känt sätt bildas vid vävningen öglor medelst in- slagstrådarna 1 och 2 utefter ena vändkanten. öglorna bildas _runt en listtrâd 6. öglorna användes för att åstadkomma en öppningsbar söm.Fig. 1 thus shows a fabric consisting of two layers of yarns 1 and 2 which form weft threads in the weave. Furthermore, a coarser yarn 3 is woven on the side of the fabric which forms the drainage side. The yarns 3 have a weight per unit length which is at least twice as large as the yarns 1 and 2. The coarser yarns nac3 form an upper layer and this layer gives the desired embossing of the cellulose pulp. The example is the 3 binding of the threads with the pattern 4-shaft cross-twisted in two reports. In a manner known per se, loops are formed during the weaving by means of the weft threads 1 and 2 along one of the turning edges. the loops are formed around a strip wire 6. the loops are used to provide an openable seam.
I fig. 2 visas schematiskt ett tvärsnitt av vävnaden när den- na är en s.k. rundvävd vävnad. Härvid har öglorna 5 bildats av garnerna 1 och 2 kring listtråden 6. Det grövre garnet 3 är ej format med öglor. För övrigt skall frmahâllas att i fig 2 ingen bindning med varptrâdarna visats. När vävnaden som alltså utgöres av en rundvävnad skall anpassas till att vara pressfilt, så avskäres garnerna 3 i närheten av öglor- na och utefter en linje som således är parallell med öglorna eller listtråden 6. När sedan listtråden drages ur, kan filten vecklas ut i hela sin längd. Eventuellt kan filten dessför- innan förses med ett vaddlager, som nâlats fast i filten och ger den bättre stabilitet, varvid således erhålles en för- stärkt vaddflik över området där öglorna befinner sig, dvs över den öppningsbara söm, som skall bildas, se t ex svenskt patent 447 140. Från svenska patentet 429 982 är i och för sig känt och beskrivet ett förfarande för att bilda en söm av nu beskrivet slag.Fig. 2 schematically shows a cross section of the tissue when it is a so-called round-woven tissue. In this case, the loops 5 have been formed by the yarns 1 and 2 around the strip thread 6. The coarser yarn 3 is not formed with loops. Incidentally, it should be noted that in Fig. 2 no bond with the warp threads is shown. When the fabric which thus consists of a circular fabric is to be adapted to be a press felt, the yarns 3 are cut off near the loops and along a line which is thus parallel to the loops or the strip thread 6. When the strip thread is then pulled out, the felt can be unfolded in its entire length. Optionally, the felt can before that be provided with a wadding layer, which is pinned to the felt and gives it better stability, thus obtaining a reinforced wadding flap over the area where the loops are located, ie over the openable seam to be formed, see e.g. Swedish patent 447 140. From Swedish patent 429 982 a method for forming a seam of the kind now described is known and described per se.
När listtråden är borttagen kan filten föras in i den av- sedda pressen i torkmaskinen i en enda längd och efter in- förandet kan de båda ändarna förenas genom att öglorna 5 möts och en låstråd 7 införs genom öglorna. Pressfilten görs oändlig. Se fig. 3. 3 462 859 Garnerna 1 och 2 som således utgör inslag vid vävningen men är längsgående vid användning i pappersmaskinen, utgöres före-' trädesvis av monofilament av polyamid eller polymer med lik- nande egenskaper och har en diameter av 0,3 - 0,7 mm motsva- rande ett texnr av ca 80g- 430.When the strip wire is removed, the felt can be inserted into the intended press in the dryer in a single length and after insertion, the two ends can be joined by meeting the loops 5 and a locking wire 7 being inserted through the loops. The press blanket is made infinite. See Fig. 3. The yarns 1 and 2, which thus form elements in the weaving but are longitudinal when used in the paper machine, are preferably monofilaments of polyamide or polymer with similar properties and have a diameter of 0.3. - 0.7 mm corresponding to a text number of approx. 80g- 430.
'Garnet 3 utgöres av antingen monofilament, tvinnade fina mo- nofilament eller multifilament med en vikt per längdenhet som är minst dubbelt så stor som den för garnerna 1 och 2, dvs. minst 160 tex. Företrädesvis användes tvinnade, fina mo- nofilament eller multifilament. Varpgarnet eller bindegarnet 4 utgöres lämpligen av enkla monofilament eller tvinnade fina monofilament.The yarn 3 consists of either monofilament, twisted fine monofilament or multifilament with a weight per unit length at least twice that of yarns 1 and 2, ie. at least 160 tex. Twisted, fine monofilaments or multifilaments are preferably used. The warp yarn or tying yarn 4 is suitably composed of simple monofilaments or twisted fine monofilaments.
Claims (4)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8902337A SE462859B (en) | 1989-06-28 | 1989-06-28 | PRESS FELT |
CA002019854A CA2019854C (en) | 1989-06-28 | 1990-06-26 | Press felt |
DE4020501A DE4020501A1 (en) | 1989-06-28 | 1990-06-27 | Pinned press, felt for dewatering cellulose pulp |
SU904830442A RU1836506C (en) | 1989-06-28 | 1990-06-27 | Press needle-punched woollen cloth used for dewatering of cellulose mass in paper making machine |
FR9008087A FR2649137A1 (en) | 1989-06-28 | 1990-06-27 | PRESS FELT |
BR909003033A BR9003033A (en) | 1989-06-28 | 1990-06-28 | PRESS FELT |
FI903277A FI92741B (en) | 1989-06-28 | 1990-06-28 | A press felt |
US07/899,028 US5225269A (en) | 1989-06-28 | 1992-06-15 | Press felt |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8902337A SE462859B (en) | 1989-06-28 | 1989-06-28 | PRESS FELT |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8902337D0 SE8902337D0 (en) | 1989-06-28 |
SE462859B true SE462859B (en) | 1990-09-10 |
Family
ID=20376419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8902337A SE462859B (en) | 1989-06-28 | 1989-06-28 | PRESS FELT |
Country Status (7)
Country | Link |
---|---|
BR (1) | BR9003033A (en) |
CA (1) | CA2019854C (en) |
DE (1) | DE4020501A1 (en) |
FI (1) | FI92741B (en) |
FR (1) | FR2649137A1 (en) |
RU (1) | RU1836506C (en) |
SE (1) | SE462859B (en) |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1524202A (en) * | 1967-03-09 | 1968-05-10 | Dexter Corp | Fibrous webs and method and apparatus for their production |
AT301324B (en) * | 1967-12-09 | 1972-08-25 | Manfred Schoeller Dipl Ing | Process for the production of screens designed as an endless belt |
SE355389B (en) * | 1970-12-31 | 1973-04-16 | Nordiska Maskinfilt Ab | |
DE2126995A1 (en) * | 1971-06-01 | 1973-01-04 | Pohl & Co | Mesh junction - by leaving warps free at end zones to pass round a removable pin |
ZA77222B (en) * | 1976-05-05 | 1978-07-26 | Albany Int Corp | Non-woven papermakers felt |
US4186780A (en) * | 1978-12-15 | 1980-02-05 | Albany International Corp. | Seam construction for multi-layer felts |
US4361618A (en) * | 1981-05-18 | 1982-11-30 | Ascoe Felts, Inc. | Papermakers felt with improved drainage |
US4533437A (en) * | 1982-11-16 | 1985-08-06 | Scott Paper Company | Papermaking machine |
US4482601A (en) * | 1983-05-31 | 1984-11-13 | Albany International Corp. | Wet press papermakers felt and method of fabrication |
FI72767B (en) * | 1985-11-01 | 1987-03-31 | Tamfelt Oy Ab | FOERFARANDE FOER TILLVERKNING AV EN PRESSFILT OCH EN PRESSFILT. |
DE3634649A1 (en) * | 1986-10-10 | 1988-04-14 | Wangner Gmbh Co Kg Hermann | COVERING FOR THE SHEET FORMING PART OF A PAPER MACHINE WITH ADDITIONAL, FLOATING CROSSFEDS LARGER RAPPORT LENGTH |
DE3938159A1 (en) * | 1989-11-16 | 1991-05-23 | Oberdorfer Fa F | COMPOSITE FABRICS FOR PAPER MACHINE BENCH |
-
1989
- 1989-06-28 SE SE8902337A patent/SE462859B/en not_active Application Discontinuation
-
1990
- 1990-06-26 CA CA002019854A patent/CA2019854C/en not_active Expired - Fee Related
- 1990-06-27 RU SU904830442A patent/RU1836506C/en active
- 1990-06-27 FR FR9008087A patent/FR2649137A1/en active Pending
- 1990-06-27 DE DE4020501A patent/DE4020501A1/en not_active Withdrawn
- 1990-06-28 FI FI903277A patent/FI92741B/en not_active IP Right Cessation
- 1990-06-28 BR BR909003033A patent/BR9003033A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE4020501A1 (en) | 1991-01-24 |
FR2649137A1 (en) | 1991-01-04 |
CA2019854A1 (en) | 1990-12-28 |
RU1836506C (en) | 1993-08-23 |
SE8902337D0 (en) | 1989-06-28 |
FI903277A0 (en) | 1990-06-28 |
CA2019854C (en) | 1995-03-14 |
FI92741B (en) | 1994-09-15 |
BR9003033A (en) | 1991-08-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 8902337-8 |