EP0131083B1 - Garniture en matière fibreuse pour des rouleaux de lissage - Google Patents

Garniture en matière fibreuse pour des rouleaux de lissage Download PDF

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Publication number
EP0131083B1
EP0131083B1 EP84100947A EP84100947A EP0131083B1 EP 0131083 B1 EP0131083 B1 EP 0131083B1 EP 84100947 A EP84100947 A EP 84100947A EP 84100947 A EP84100947 A EP 84100947A EP 0131083 B1 EP0131083 B1 EP 0131083B1
Authority
EP
European Patent Office
Prior art keywords
fibres
fibrous material
fiber
paper
roll
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.)
Expired
Application number
EP84100947A
Other languages
German (de)
English (en)
Other versions
EP0131083A1 (fr
Inventor
Dieter Cordier
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6189980&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0131083(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to AT84100947T priority Critical patent/ATE30609T1/de
Publication of EP0131083A1 publication Critical patent/EP0131083A1/fr
Application granted granted Critical
Publication of EP0131083B1 publication Critical patent/EP0131083B1/fr
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0233—Soft rolls
    • D21G1/024—Soft rolls formed from a plurality of compacted disc elements or from a spirally-wound band
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/36—Inorganic fibres or flakes
    • D21H13/46—Non-siliceous fibres, e.g. from metal oxides
    • D21H13/50—Carbon fibres
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/906—Roll or coil
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/909—Resilient layer, e.g. printer's blanket
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2918—Rod, strand, filament or fiber including free carbon or carbide or therewith [not as steel]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/50—FELT FABRIC
    • Y10T442/51—From natural organic fiber [e.g., wool, etc.]
    • Y10T442/53—Including particulate material other than fiber

Definitions

  • the invention relates to an elastic smoothing roller with a cover made of compressed fiber material, in particular for paper satin.
  • a special fiber material which is pressed onto the roll cores under high pressures of approximately 500 to 600 bar and then cylindrically twisted and polished, has established itself as the material for the jacket or cover of the elastic rolls of supercalenders.
  • Cellulose fibers namely cotton sinters
  • cotton sinters are primarily used as the fiber material.
  • other fiber materials can also be added to these cellulose fibers.
  • the European standard cover for elastic calender rolls consists of 80% cotton and 20% wool. Roller covers with up to 50% asbestos fibers are also used for special purposes.
  • the fiber material used for covering elastic smoothing rolls or calender rolls which for the most part consists mainly of cotton fibers with possibly a percentage of wool, is used in the form of paper made from this material, which is produced by conventional paper production processes on Fourdrinier paper machines.
  • Octagonal or round disks with a central opening for the roller core are cut from the paper, which are then stacked on the roller core and pressed together with the pressures mentioned up to 600 bar in the axial direction.
  • the rolls prepared in this way are then turned to an exact dimension and polished.
  • the fiber material for the roll cover in the form of a paper.
  • Manufacturing processes are also known in which the fiber material, for example carded cotton fiber, is pressed onto the roller core in a different manner.
  • calender roll papers are used almost exclusively for re-covering the elastic smoothing rolls.
  • a press roll sleeve for use in the wet press area of a paper machine which consists of a synthetic polymer material as a basic matrix which contains carbon fibers oriented essentially in parallel for strengthening.
  • This is the usual production of a carbon fiber reinforced mechanical component, as is also known in a similar way glass fiber reinforced plastic components.
  • the roller produced in this way is not suitable as a calender roller for the high saturation of paper.
  • US-A-3 395 636 describes a roller, which is also not a satin roller, the roller body of which, apart from a supporting core, consists essentially of a fiber or paper material, but rather a roller with a relatively thin coating Made of elastomer material, which is located on a steel body.
  • This elastomer material is said to contain 20-80% soot, as is also common in the manufacture of vehicle tires.
  • the specific problems of paper-filled satinizing rollers are not addressed in this document, nor are the rollers described there suitable for the application concerned here.
  • the object of the invention is to improve fiber-filled smoothing rollers for calendering calenders in such a way that local burns below the roller surface are avoided without impairing the advantageous technological properties of fiber-filled rollers. It should be mentioned that a relatively high surface temperature of the rolls is desirable for a good satin effect. On the other hand, undesirable temperature peaks within the roll shell exceeding such a temperature are undesirable.
  • fiber material when one speaks of "fiber material” in this context, it means the entire material for the roll cover, which is generally made available in the form of a paper.
  • fibrous material means the actual fibrous substances in the fiber material which, together with possibly other additives, form the fiber material as a material for the roll cover.
  • the elastic smoothing roller has a cover made of compressed fiber material, which contains carbon fibers in a proportion of 1.5-15% by weight, preferably of about 3-12% by weight, based on the total fiber material in fiber material.
  • the fiber lengths of the carbon fibers should expediently be of the order of magnitude of the prevailing fiber lengths of the other fiber materials in order to be able to produce a suspension which is as homogeneous as possible.
  • the fiber thickness should also be of the same order of magnitude as the rest of the fibrous material, so that a mutual felting of the fibers can occur during paper production.
  • carbon fibers with a length of 3 mm and a diameter of 5 to 10 11 m could be processed successfully with cotton sinters which have a length of 2 to 3 mm and a diameter of 17 to 27 ⁇ m.
  • the thermal conductivity of the fiber material can also be improved by adding an electrically conductive carbon black to the fiber material. Additions of 0.5 to 10% by weight, based on the total fiber material, are possible. However, the effect of the addition of carbon black based on an equal weight fraction is significantly less compared to the carbon fibers.
  • the use of carbon black in papermaking also has the disadvantage that this non-fibrous material is less retained on the paper machine wire and therefore the Water cycle burdened. In contrast, the carbon fiber contributes to the strength and elasticity of the paper. A possible addition of carbon black with appropriate adjustment of the carbon fiber content is to be determined for the individual case from a technological and cost point of view.
  • the invention also relates to the use of the fibrous material for the production of covers for elastic smoothing rolls, in particular calender rolls, as well as elastic smoothing rolls, which are provided with a cover made of a compressed fiber material which contains a proportion of carbon fibers, preferably in the same way as before for the Contains quantities described on paper.
  • the reference of the rollers according to the invention does not necessarily have to be derived from a paper. The addition of soot is also possible here.
  • preferred papers for use according to the invention consist of a fiber material consisting essentially of exclusively cotton fibers or of cotton sinter and wool in weight ratios of 7 to 3 to 9 to 1.
  • the fiber material can also contain up to 50% asbestos fibers contain.
  • the alternating loading of the test cube is carried out until the area under the plunger burns, a so-called "burn-out" occurs.
  • the ram's test conditions are at a load of 490 N (50 kp) and a frequency of 50 Hz, corresponding to an alternating pressure of 5.0 bar.
  • a service life of a sample cube made of conventional material of 20 minutes is rated as good, that of only 10 minutes as poor.
  • the temperature difference between sensors 1 and 2 is around 90 ° C in conventional calender roll papers towards the end of the test. Since the temperature difference between the two sensors is a measure of the heat dissipation of the sample, the poor heat dissipation of cellulose-based calender roll papers already results from this value which leads to the temperature build-up mentioned and finally to the burn-out below the sample surface.
  • a test cube was again produced under the same conditions as described in Example 1, but the load on the plunger was doubled. With conventional calender roll papers, a burn-out occurs within a few minutes under this load. In the test paper according to the invention, no burnout occurred even under these more severe conditions. Only after an additional increase also the frequency of use could after a standing time a burn-out of 55 minutes can be achieved.
  • the temperatures measured on the sensors were 216 ° C (sensor 1) and 152 ° C (sensor 2).
  • a calender roll paper made of 90% by weight of cotton sinter and 10% by weight of carbon fibers of the type mentioned in Example 1 was used on a commercial paper machine at a machine speed of about 80 to 90 m / min with a basis weight of about 160 to 170 g / m 2 produced.
  • This paper was used to cover a calender roll that was used in a calender for the satinizing of glassine paper, which works under extremely high satin loads and in which therefore normally only elastic calender rolls are used, whose roll covers have a high proportion of asbestos fibers.
  • Previous tests with elastic roller covers made of cotton resulted in service lives for the rollers of less than 2 hours.
  • the roller with the cover according to the invention could be run over a production time of 526 hours. A matt surface then appeared and when the cover was subsequently split off, it was found that the roller was completely burned. Contrary to this phenomenon, most conventional rollers have to be replaced due to local burns. Use until the material is completely burned is never achieved. This indicates that the surface damage that can never be avoided during operation of a calender, which leads to local heating and local burnout, is hardly of any influence in the roller according to the invention, because the local temperature increases are apparently better derived there and distributed over the entire roller.
  • the exemplary embodiments prove that the fiber material can be used to produce covers for elastic calender rolls according to the invention, which are considerably superior to the previously known roll covers in terms of their stability, the addition of the carbon fibers also having a technologically favorable effect on the roll work. These very favorable results have enabled machine manufacturers to consider changes and new applications in calender technology for some time that could not be realized due to the risk of burnout of conventional calender roll covers.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Reinforced Plastic Materials (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Claims (10)

1. Rouleaux de lissage élastiques comprenant une garniture en matière fibreuse comprimée, notamment pour le satinage du papier, caractérisés en ce que la matière fibreuse contient des fibres de carbone dans une proportion de 1,5 à 15 % en poids, par rapport à la substance fibreuse totale dans la matière fibreuse.
2. Rouleaux de lissage selon la revendication 1, caractérisés en ce que la proportion des fibres de carbone, par rapport à la substance fibreuse totale, est comprise entre 3 et 12 %.
3. Rouleaux de lissage selon la revendication 1 ou 2, caractérisés en ce que la garniture contient, en plus de la substance fibreuse, une proportion de 0,5 à 10 % en poids d'une suie conductrice de l'électricité, par rapport à la substance fibreuse totale.
4. Rouleaux de lissage selon l'une des revendications 1 à 3, caractérisés en ce que la substance fibreuse comprend essentiellement des fibres de coton, notamment des linters de coton.
5. Rouleaux de lissage selon l'une des revendications 1 à 3, caractérisés en ce que la substance fibreuse comprend des linters de coton et de la laine dans un rapport en poids de 7 à 3 jusqu'à 9 à 1.
6. Rouleaux de lissage selon l'une des revendications 1 à 3, caractérisés en ce que la substance fibreuse contient une proportion de jusqu'à 50 % de fibres d'amiante.
7. Utilisation d'une matière fibreuse, qui contient de 1,5 à 15 % en poids de fibres de carbone par rapport à la substance fibreuse totale dans la matière fibreuse, pour la fabrication de garnitures pour rouleaux de lissage élastiques.
8. Utilisation selon la revendication 7, caractérisée en ce que la matière fibreuse se présente sous forme de papier.
9. Utilisation selon la revendication 8, caractérisée en ce que le papier comprend essentiellement des fibres de coton, notamment des linters de coton, et éventuellement une proportion de laine dans un rapport de 7 à 3 jusqu'à 9 à 1 par rapport aux fibres de coton.
10. Utilisation selon la revendication 8 ou 9, caractérisée en ce que la substance fibreuse contient une proportion de jusqu'à 50 % en poids de fibres d'amiante.
EP84100947A 1983-02-04 1984-01-31 Garniture en matière fibreuse pour des rouleaux de lissage Expired EP0131083B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84100947T ATE30609T1 (de) 1983-02-04 1984-01-31 Bezug aus fasermaterial fuer glaettwalzen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3303703 1983-02-04
DE19833303703 DE3303703A1 (de) 1983-02-04 1983-02-04 Kalanderwalze und papier fuer eine kalanderwalzenfuellung

Publications (2)

Publication Number Publication Date
EP0131083A1 EP0131083A1 (fr) 1985-01-16
EP0131083B1 true EP0131083B1 (fr) 1987-11-04

Family

ID=6189980

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84100947A Expired EP0131083B1 (fr) 1983-02-04 1984-01-31 Garniture en matière fibreuse pour des rouleaux de lissage

Country Status (11)

Country Link
US (1) US4659616A (fr)
EP (1) EP0131083B1 (fr)
JP (1) JPS60500420A (fr)
AT (1) ATE30609T1 (fr)
AU (1) AU568334B2 (fr)
CA (1) CA1254424A (fr)
DE (2) DE3303703A1 (fr)
FI (1) FI74088C (fr)
NZ (1) NZ207040A (fr)
WO (1) WO1984003113A1 (fr)
ZA (1) ZA84746B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4219989A1 (de) * 1992-06-19 1993-12-23 Kleinewefers Gmbh Verfahren zum Herstellen einer Walze mit elastischem Bezug und nach diesem Verfahren hergestellte Walze

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4879168A (en) * 1987-10-28 1989-11-07 The Dow Chemical Company Flame retarding and fire blocking fiber blends
DE3943830B4 (de) * 1988-11-11 2007-03-22 Metso Paper, Inc. Walze zum Kalandrieren
EP0459519A1 (fr) * 1990-06-01 1991-12-04 Lydall, Inc. Matériau de remplissage d'un rouleau et rouleau calandre rempli revêtu de ce matériau
US5142759A (en) * 1991-08-27 1992-09-01 Beloit Corporation Roll cover apparatus

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE211985C (fr) *
US1854509A (en) * 1929-05-11 1932-04-19 Henry Philip Shopneck Calender roll filling
US3265557A (en) * 1964-01-09 1966-08-09 Atlantic Res Corp Fibrous compositions
US3395636A (en) * 1966-04-27 1968-08-06 Sw Ind Inc Construction of roll for machinery
DE2050627A1 (en) * 1968-12-18 1972-05-04 Beloit Corp., Beloit, Wis. (V.St.A.) Roller composition for paper machines
US3698053A (en) * 1971-05-06 1972-10-17 Sw Ind Inc High speed roll for machinery
JPS4964677A (fr) * 1972-10-26 1974-06-22
US3852862A (en) * 1972-11-08 1974-12-10 New Hudson Corp Roll and method of manufacture
JPS5158504A (ja) * 1974-11-15 1976-05-21 Nippon Carbon Co Ltd Shoshikyorooru
JPS605133Y2 (ja) * 1979-09-18 1985-02-16 大日本スクリ−ン製造株式会社 ゴムロ−ル
US4256801A (en) * 1979-12-14 1981-03-17 Raybestos-Manhattan, Incorporated Carbon fiber/flame-resistant organic fiber sheet as a friction material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4219989A1 (de) * 1992-06-19 1993-12-23 Kleinewefers Gmbh Verfahren zum Herstellen einer Walze mit elastischem Bezug und nach diesem Verfahren hergestellte Walze

Also Published As

Publication number Publication date
JPS60500420A (ja) 1985-03-28
DE3467200D1 (en) 1987-12-10
FI74088C (fi) 1987-12-10
US4659616A (en) 1987-04-21
WO1984003113A1 (fr) 1984-08-16
ATE30609T1 (de) 1987-11-15
AU568334B2 (en) 1987-12-24
CA1254424A (fr) 1989-05-23
EP0131083A1 (fr) 1985-01-16
FI843370A0 (fi) 1984-08-27
NZ207040A (en) 1986-07-11
FI843370A (fi) 1984-08-27
FI74088B (fi) 1987-08-31
AU2495384A (en) 1984-08-30
DE3303703A1 (de) 1984-08-09
ZA84746B (en) 1984-09-26

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