NO147803B - FORMING WIRE FOR A PAPER MACHINE. - Google Patents
FORMING WIRE FOR A PAPER MACHINE. Download PDFInfo
- Publication number
- NO147803B NO147803B NO763679A NO763679A NO147803B NO 147803 B NO147803 B NO 147803B NO 763679 A NO763679 A NO 763679A NO 763679 A NO763679 A NO 763679A NO 147803 B NO147803 B NO 147803B
- Authority
- NO
- Norway
- Prior art keywords
- yarns
- forming wire
- wire according
- yarn
- polyester
- Prior art date
Links
- 229920000728 polyester Polymers 0.000 claims description 15
- 239000004952 Polyamide Substances 0.000 claims description 13
- 229920002647 polyamide Polymers 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 claims description 3
- 239000002759 woven fabric Substances 0.000 claims description 3
- 229920002994 synthetic fiber Polymers 0.000 claims description 2
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 5
- 239000000523 sample Substances 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000013068 control sample Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 229920004935 Trevira® Polymers 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
-
- 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
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
-
- 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
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Paper (AREA)
- Woven Fabrics (AREA)
- Portable Nailing Machines And Staplers (AREA)
Description
Oppfinnelsen vedrører en formingsvire for en papirmaskin som omfatter et vevet stoff aom enten i maskinretning og/eller på tvers av maskinretningen har første garn som fullstendig består av polyestermateriale og er beregnet på å gi dimensjonsstabilitet i en eller begge retninger som garnene er anbrakt i. The invention relates to a forming wire for a paper machine which comprises a woven fabric that either in the machine direction and/or across the machine direction has first yarns that consist entirely of polyester material and are intended to provide dimensional stability in one or both directions in which the yarns are placed.
Opprinnelig var virer av denne type vevet av metall-tråder, og det foretrukkede materiale var fosforbronse. Originally wires of this type were woven from metal threads, and the preferred material was phosphor bronze.
I de senere år er det blitt stadig vanligere å be-nytte syntetiske garn ved fremstillingen av virer, innbefatt-ende dreneringsvirer for våtpartiet i en papirmaskin, men de iboende egenskaper til syntetiske garn har gitt opphav til mange vanskeligheter. I tilfelle av polyestergarn f.eks. er det et problem med slitasjen, mens det i tilfelle av polyami-der oppstår vanskeligheter med dimensjonsustabilitet på grunn av fuktighetsopptak. In recent years, it has become increasingly common to use synthetic yarns in the production of wires, including drainage wires for the wet part of a paper machine, but the inherent properties of synthetic yarns have given rise to many difficulties. In the case of polyester yarn e.g. is a problem with wear, while in the case of polyamides difficulties arise with dimensional instability due to moisture absorption.
I US patent nr. 4 119 754 er det beskrevet bruken av et belgg for å forbedre slitasjemotstanden for en vire for vårpartiet dannet av polyestergarn. US patent no. 4,119,754 describes the use of a bellows to improve the wear resistance of a wire for the spring portion formed from polyester yarn.
Det er tidligere blitt foreslått å overvinne proble-met med dimensjonsinstabilitet for polyamidgarn og å gjøre slike garn egnet for anvendelse i virer for våtpartiet ved å påføre et harpiksbelegg på et multifilamentgarn, idet polyamid er totalt uakseptabelt i sin ubehandlede tilstand. It has previously been proposed to overcome the problem of dimensional instability for polyamide yarns and to make such yarns suitable for use in wires for the wet section by applying a resin coating to a multifilament yarn, polyamide being totally unacceptable in its untreated state.
Hensikten med foreliggende oppfinnelse er å til-veiebringe en formingsvire med egnet slitasjemotstand og dimensjonsstabilitet uten nødvendigheten av å påføre et be-legg til dette formål. The purpose of the present invention is to provide a forming wire with suitable wear resistance and dimensional stability without the necessity of applying a coating for this purpose.
Denne hensikt oppnåes ved en formingsvire av den innledningsvis nevnte type, hvor det er anordnet ytterligere garn adskilt fra og forløpende i det vesentlige parallelt med de første garn, hvilke ytterligere garn befinner seg ved en overflate av stoffet og er utformet helt av et syntetisk materiale som er forskjellig fra og har større slitasjemotstand enn polyestermaterialet i det første garn. This purpose is achieved by a forming wire of the type mentioned at the outset, where further yarns are arranged separate from and running essentially parallel to the first yarns, which further yarns are located at a surface of the fabric and are formed entirely of a synthetic material which is different from and has greater abrasion resistance than the polyester material in the first yarn.
Ytterligere trekk ved oppfinnelsen fremgår av under-kravene. Further features of the invention appear from the sub-claims.
Ved denne spesielle anordning er det funnet mulig å oppnå forbedret slitasjemotstand, mens man samtidig bibeholder dimensjonsstabiliteten uten at det er nødvendig å belegge garnene. With this special device, it has been found possible to achieve improved wear resistance, while at the same time maintaining dimensional stability without it being necessary to coat the yarns.
Den iboende dimensjonsstabilitet for polyestergarn er ikke, slik man kunne vente, påvirket av instabiliteten for andre garn. The inherent dimensional stability of polyester yarns is not, as one might expect, affected by the instability of other yarns.
Fortrinnsvis utgjør de| ytterligere garn ikke mer Preferably they constitute| additional yarn no more
enn 50% av garnene i den ene eller hver retning i hvilken de forlenges, idet de g jenblivende' garn i denne retning alle ut-gjøres av de første garn, og særlig 50% av garnene kan være ytterligere garn. than 50% of the yarns in one or each direction in which they are extended, as the remaining yarns in this direction are all made up of the first yarns, and in particular 50% of the yarns may be additional yarns.
I en særlig foretrukket utførelse er de ytterligere garn plassert mellom de førstejgarn, og de ytterligere garn og de første garn kan anordnes;alternativt. In a particularly preferred embodiment, the further yarns are placed between the first yarns, and the further yarns and the first yarns can be arranged alternatively.
Alternativt eller i tillegg kan viren ha minst to lag av garn i felles retning som omfatter et øvre lag av de første garn og et nedre lag av de ytterligere garn eller om-vendt. Spesielt kan det øvre lag dannes helt av de første garn og det nedre lag helt av de ytterligere garn. Alternatively or in addition, the wire can have at least two layers of yarn in a common direction comprising an upper layer of the first yarns and a lower layer of the further yarns or vice versa. In particular, the upper layer can be formed entirely of the first yarns and the lower layer entirely of the further yarns.
De første garn er dimiensjonsstabil<e> polyestergarn, slik de vanligvis benyttes i virer for papirmaskiner, dvs. garn dannet av polyester av polyetylenterftalat-typen, som f.eks. selges under varemerket "Terylen" eller "Trevira". The first yarns are dimensionally stable<e> polyester yarns, as they are usually used in wires for paper machines, i.e. yarns formed from polyester of the polyethylene terephthalate type, such as e.g. sold under the trade name "Terylen" or "Trevira".
De ytterligere garn kan være av hvilket som helst egnet materiale, såsom polyamid, polyolefin, polyetrafluor- The additional yarns may be of any suitable material, such as polyamide, polyolefin, polytetrafluoro-
i in
etylen, eller også en polyester (såsom polybutyltereftalat) med de nødvendige egenskaper.; En polyamid, særlig en pély-amid som selges under betegnelsen "Nylon" er foretrukket. ethylene, or also a polyester (such as polybutyl terephthalate) with the necessary properties.; A polyamide, especially a pélyamide sold under the name "Nylon" is preferred.
Sammenligende forsøk; mellom en standardvire vevet helt av monofilamentpolyestergarn og en tilsvarende vire vevet delvis av polyester ("Terylen") og delvis av polyamidgarn ("Nylon") i samsvar med et utiførelseseksempel for foreliggende oppfinnelse viser økningen i jslitasjemotstand som vesentlig og så meget mer at hverken en tilsvarende vire med tilsvarende dreneringsegenskaper kan tilveiebringes med en forbedret levetid eller alternativt et finere stoff med forbedrede drener- Comparative trials; between a standard wire woven entirely of monofilament polyester yarn and a corresponding wire woven partly of polyester ("Terylene") and partly of polyamide yarn ("Nylon") in accordance with an embodiment of the present invention shows the increase in abrasion resistance to be substantial and so much more that neither a equivalent wire with similar drainage properties can be provided with an improved service life or alternatively a finer material with improved drainage
ingsegenskaper og en tilsvarende levetid kan fremstilles. ing properties and a corresponding lifetime can be produced.
Ved gjennomføring av forsøkene ble det benyttet følgende fremgangsmåte: When carrying out the experiments, the following procedure was used:
En vire som utgjorde en prøve ble holdt under strekk A wire constituting a sample was held under tension
i kontakt med den øvre del av omkretsen mot en skive som ro-terte i et vertikalt plan, mens en oppslemming av et materiale som vanligvis benyttes ved papirfremstilling og med slitende egenskaper kontinuerlig blir påført på den ytre flate av stoffet. in contact with the upper part of the circumference against a disk rotating in a vertical plane, while a slurry of a material commonly used in papermaking and with abrasive properties is continuously applied to the outer surface of the fabric.
Tykkelsen til prøven ble målt ved starten og igjen etter en forutbestemt tid. Skiven ble rotert med den samme hastighet, strekket som ble utøvet på prøven ble holdt konstant og oppslemmingen ble tilført ved en konstant hastighet gjennom alle forsøk. The thickness of the sample was measured at the start and again after a predetermined time. The disc was rotated at the same speed, the tension applied to the sample was kept constant and the slurry was fed at a constant rate throughout all trials.
Kontrollprøven omfattet et vevet stoff av monofilamentgarn såvel i maskinretning som på tvert av maskinretningen, og det var 26 varpender og 20 veftender av monofilamentpolyestergarn på 0,25 mm diameter pr. centimeter, mens i polyester/ polyamidprøven omfattet veften alternerende polyester og <! >polyamidmonofilamentgarn, idet vevnadstrukturen i de to prøver var den samme. Det slitende materiale som ble benyttet var kalsiumkarbonat. The control sample comprised a woven fabric of monofilament yarn both in the machine direction and across the machine direction, and there were 26 warp ends and 20 weft ends of monofilament polyester yarn of 0.25 mm diameter per centimetres, while in the polyester/polyamide sample the weave included alternating polyester and <! >polyamide monofilament yarn, as the weave structure in the two samples was the same. The abrasive material used was calcium carbonate.
De følgende resultater ble oppnådd: The following results were obtained:
Forsøksresultatene viser at slitasjemotstanden for stoffet med polyester/polyamid-veft er forbedret i sammenlig-ning med kontrollprøven som helt er av polyestergarn. The test results show that the wear resistance of the fabric with polyester/polyamide weave is improved in comparison with the control sample which is made entirely of polyester yarn.
Det skal forstås at hvis varpen til stoffet vanligvis ventes å bli utsatt for slitasje, kan polyester/polyamid-kombinasjonen også tilføres til varpen isteden for til veften. It should be understood that if the warp of the fabric is normally expected to be exposed to wear and tear, the polyester/polyamide combination can also be added to the warp instead of to the weft.
I de tilfeller hvor såvel slitasje utøves eller ventes i maskinretning som på tvers av maskinretningen kan en polyester/polyamid-kombinasjon anbringes i begge retninger. In cases where both wear is exerted or expected in the machine direction as well as across the machine direction, a polyester/polyamide combination can be placed in both directions.
Oppfinnelsen er selvfølgelig ikke begrenset til å alternere i maskinretning eller tiverretnin<g> av maskinen for polyester- og polyamidgarn, da pndre stoffstrukturer også kan være anvendbare. The invention is, of course, not limited to alternating machine direction or orientation of the machine for polyester and polyamide yarns, as other fabric structures may also be applicable.
Selv om det er beskrevejt en foretrukket anordning hvor det er 50% av de ytterligerje garn, kan det i alternative utførelser være et forskjellig fiorhold av de ytterligere garn. Således kan det være opptil 60% jytterligere garn, spesielt, men ikke nødvendigvis, i tilfelle av en sirkulær vevnad, og det kan være mer eller mindre enn 50% hvor dette e.r ønskelig eller nødvendig på grunn av vevemønsteret som benyttes enten sirkulært eller flatt vevet. I,' Although a preferred arrangement has been described where there are 50% of the additional yarns, in alternative embodiments there may be a different content of the additional yarns. Thus there can be up to 60% more yarn, especially, but not necessarily, in the case of a circular weave, and it can be more or less than 50% where this is desirable or necessary due to the weave pattern used either circular or flat woven . IN,'
Claims (9)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB44800/75A GB1562284A (en) | 1975-10-30 | 1975-10-30 | Papermakers |
Publications (2)
Publication Number | Publication Date |
---|---|
NO763679L NO763679L (en) | 1977-05-03 |
NO147803B true NO147803B (en) | 1983-03-07 |
Family
ID=10434805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO763679A NO147803B (en) | 1975-10-30 | 1976-10-28 | FORMING WIRE FOR A PAPER MACHINE. |
Country Status (18)
Country | Link |
---|---|
JP (1) | JPS5285503A (en) |
AT (1) | AT349879B (en) |
AU (1) | AU498904B2 (en) |
BE (1) | BE847837A (en) |
BR (1) | BR7607275A (en) |
CA (1) | CA1059354A (en) |
CH (1) | CH616469A5 (en) |
DE (1) | DE2649312A1 (en) |
ES (1) | ES452907A1 (en) |
FI (1) | FI66040B (en) |
FR (1) | FR2329799A1 (en) |
GB (1) | GB1562284A (en) |
IT (1) | IT1068852B (en) |
NL (1) | NL183202B (en) |
NO (1) | NO147803B (en) |
NZ (1) | NZ182387A (en) |
SE (1) | SE7612079L (en) |
ZA (1) | ZA766250B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3631245A1 (en) * | 1985-10-24 | 1987-05-07 | Phoenix Ag | FUNDING GOOD |
JP2723156B2 (en) * | 1988-11-25 | 1998-03-09 | 敷島紡績株式会社 | Dryer canvas for papermaking |
DE4229828C2 (en) * | 1992-09-07 | 1996-07-04 | Kufferath Andreas Gmbh | Paper machine screen in the form of a composite fabric |
PT2230352E (en) * | 2009-03-20 | 2012-12-05 | Heimbach Gmbh & Co Kg | Woven fabric band for circulation in a machine |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB810603A (en) * | 1955-09-23 | 1959-03-18 | Scapa Dryers Ltd | Improvements in or relating to papermakers' dryer felts |
DE1126724B (en) * | 1956-07-03 | 1962-03-29 | Scapa Dryers Ltd | Drying felt for paper machines |
FR1309607A (en) * | 1961-12-29 | 1962-11-16 | Wire mesh for sieves, more particularly for sieves of papermaking machines | |
SE324101B (en) * | 1967-01-31 | 1970-05-19 | Nordiska Maskinfilt Ab | |
GB1207446A (en) * | 1967-02-06 | 1970-09-30 | Albany Felt Co | Dryer felt for paper making machines |
DE1985196U (en) * | 1967-12-16 | 1968-05-09 | Heimbach Gmbh Thomas Josef | SIEVE BELT. |
US3603354A (en) * | 1968-04-10 | 1971-09-07 | Huyck Corp | Apparatus for use on papermaking machines |
DE2502466C3 (en) * | 1975-01-22 | 1985-05-30 | Hermann Wangner Gmbh & Co Kg, 7410 Reutlingen | Interchangeable weft paper machine screen |
JPS51116210A (en) * | 1975-04-02 | 1976-10-13 | Nippon Filcon Kk | Fabric for paper screen |
-
1975
- 1975-10-30 GB GB44800/75A patent/GB1562284A/en not_active Expired
-
1976
- 1976-10-20 ZA ZA766250A patent/ZA766250B/en unknown
- 1976-10-21 NZ NZ182387A patent/NZ182387A/en unknown
- 1976-10-26 JP JP12788676A patent/JPS5285503A/en active Pending
- 1976-10-26 AU AU19014/76A patent/AU498904B2/en not_active Expired
- 1976-10-26 IT IT28718/76A patent/IT1068852B/en active
- 1976-10-27 CH CH1356876A patent/CH616469A5/de not_active IP Right Cessation
- 1976-10-28 NO NO763679A patent/NO147803B/en unknown
- 1976-10-28 NL NLAANVRAGE7611946,A patent/NL183202B/en not_active IP Right Cessation
- 1976-10-29 FR FR7632912A patent/FR2329799A1/en active Granted
- 1976-10-29 SE SE7612079A patent/SE7612079L/en unknown
- 1976-10-29 FI FI763099A patent/FI66040B/en not_active Application Discontinuation
- 1976-10-29 AT AT804876A patent/AT349879B/en active
- 1976-10-29 BE BE171963A patent/BE847837A/en not_active IP Right Cessation
- 1976-10-29 CA CA264,431A patent/CA1059354A/en not_active Expired
- 1976-10-29 BR BR7607275A patent/BR7607275A/en unknown
- 1976-10-29 DE DE19762649312 patent/DE2649312A1/en not_active Withdrawn
- 1976-10-30 ES ES452907A patent/ES452907A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2329799B1 (en) | 1982-02-12 |
JPS5285503A (en) | 1977-07-15 |
CH616469A5 (en) | 1980-03-31 |
AT349879B (en) | 1979-04-25 |
NZ182387A (en) | 1979-08-31 |
AU1901476A (en) | 1978-05-04 |
GB1562284A (en) | 1980-03-12 |
BR7607275A (en) | 1977-09-13 |
BE847837A (en) | 1977-02-14 |
NO763679L (en) | 1977-05-03 |
AU498904B2 (en) | 1979-03-29 |
FI763099A (en) | 1977-05-01 |
NL7611946A (en) | 1977-05-03 |
SE7612079L (en) | 1977-05-01 |
FI66040B (en) | 1984-04-30 |
IT1068852B (en) | 1985-03-21 |
DE2649312A1 (en) | 1977-05-05 |
NL183202B (en) | 1988-03-16 |
ZA766250B (en) | 1977-07-27 |
FR2329799A1 (en) | 1977-05-27 |
ES452907A1 (en) | 1977-10-16 |
ATA804876A (en) | 1978-09-15 |
CA1059354A (en) | 1979-07-31 |
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