EP0059973A1 - Papermaker's felt for the wet end - Google Patents

Papermaker's felt for the wet end Download PDF

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Publication number
EP0059973A1
EP0059973A1 EP82101847A EP82101847A EP0059973A1 EP 0059973 A1 EP0059973 A1 EP 0059973A1 EP 82101847 A EP82101847 A EP 82101847A EP 82101847 A EP82101847 A EP 82101847A EP 0059973 A1 EP0059973 A1 EP 0059973A1
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EP
European Patent Office
Prior art keywords
felt
knitted
threads
compressible
yarn
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
EP82101847A
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German (de)
French (fr)
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EP0059973B1 (en
EP0059973B2 (en
Inventor
Marcel Dufour
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COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
Original Assignee
COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
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Application filed by COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA filed Critical COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
Priority to AT82101847T priority Critical patent/ATE16030T1/en
Publication of EP0059973A1 publication Critical patent/EP0059973A1/en
Publication of EP0059973B1 publication Critical patent/EP0059973B1/en
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    • 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
    • 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
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/90—Papermaking press felts
    • 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.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3065—Including strand which is of specific structural definition
    • 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.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3707—Woven fabric including a nonwoven fabric layer other than paper
    • Y10T442/3724—Needled

Definitions

  • the invention relates to conveyor belts and filtration bands such as felts or stationery covers.
  • conveyor belts or the like are used to form, press, dry.
  • bands obtained by weaving with or without subsequent fixing of a ply by needling, have been used on one or two faces.
  • the object of the invention is to remedy these drawbacks by producing a felt which makes it possible to reduce and even eliminate these vibrations and / or these crushed.
  • the subject of the invention is a felt such as stationery covering made of a permeable fabric comprising warp threads interspersed with weft threads characterized in that at least some of said warp threads are made of knitted structural threads compressible and elastic so as to give the felt a vibration damping effect between the rollers and cylinders of the papermaking machine and delay the appearance of crushed parts and on the other hand that the felt can resume substantially its first thickness when it is no longer compressed.
  • FIG. 1 represents a water-permeable fabric made up of weft threads 11, 12, 13, 14 and two layers of warp threads 15, 16.
  • the weft threads are formed of monofilament threads.
  • the layer of warp threads 15 is made up of non-compressible wired threads.
  • the layer of threads 16 consists of knitted threads of compressible and elastic structure, preferably threads made of stitches as shown in FIG.
  • the layer of compressible and elastic warp threads 16 can be placed in contact with the rollers of the machine and the layer of non-compressible warp threads 15 can constitute the face of the felt in contact with the sheet of paper.
  • FIG. 2 represents a variant of fabric made up of monofilament weft threads 11, 12, 13, 14 and three layers of warp thread 15, 16.
  • the two layers of warp thread 15 are made of non-compressible cabled threads.
  • the layer of warp threads 16 consists of knitted threads of compressible and elastic structure. The compressible and elastic layer 16 is thus interposed between two non-compressible layers 15.
  • the number of threads and layers of compressible and elastic threads incorporated in the slot depends on the qualities of elasticity desired for the felt.
  • a sheet of fibers 17 can then be fixed to the fabric by the needling technique, on one or both sides of the fabric (fig. 4 and 5) in order to improve the surface condition, for example for give the felt a soft and non-marking surface, avoiding any risk of marking the paper.
  • the fibers of the tablecloth 17 partially interpenetrate the canvas of the fabric and form a tablecloth 4 to 5 mm above the canvas.
  • the weft and warp threads are preferably made of synthetic material.
  • the compressible and elastic thread is formed from a monofilament or multifilament knitted so as to constitute a bead of structure with three compressible dimensions. It may include a support core and one or more knitted threads wound around the support core.
  • a knitted yarn longer than that of the felt is used so that the yarn works without tension and that the stitches of the knitted yarn retain their shape, in order to obtain a maximum damping effect.
  • the knitted yarn can be chemically treated, for example it can be coated with resin so as to increase its resistance, in particular to untying.

Landscapes

  • Paper (AREA)
  • Artificial Filaments (AREA)
  • Filtration Of Liquid (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Woven Fabrics (AREA)
  • Filtering Materials (AREA)
  • Detergent Compositions (AREA)
  • Lubricants (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)

Abstract

Papermaker's felt employing compressible knit yarn in a woven base to provide a durable resiliency so as to provide vibration dampening and delay the occurrence of crushing during papermaking.

Description

L'invention concerne les bandes transporteuses et les bandes de filtration telles que feutres ou habillages de papeterie.The invention relates to conveyor belts and filtration bands such as felts or stationery covers.

Dans la fabrication du papier on utilise notamment des feutres qui ont pour fonction principale de véhiculer la feuille de papier humide et de permettre l'élimination de l'eau qui est exprimée par le passage de la feuille entre des organes appropriés puis d'appliquer la feuille, dont l'eau a été en partie exprimée, sur des cylindres chauffés et de faciliter ainsi son séchage en augmentant les transferts de chaleur du cylindre vers la feuille en créant une ventilation spontanée de façon à faciliter l'évaporation et en absorbant une certaine quantité d'eau en phase liquide.In the manufacture of paper use is made in particular of felts which have the main function of conveying the sheet of wet paper and of allowing the elimination of the water which is expressed by the passage of the sheet between suitable organs and then applying the sheet, the water of which has been partly expressed, on heated cylinders and thus facilitate its drying by increasing the heat transfers from the cylinder to the sheet by creating spontaneous ventilation so as to facilitate evaporation and by absorbing a certain amount of water in liquid phase.

La fabrication du papier se fait ainsi en continu sur des machines comprenant trois parties :

  • - une première partie pour la formation de la feuille en phase aqueuse avec filtration d'eau
  • - une deuxième partie pour le pressage de la feuille en phase humide avec extraction d'eau
  • - et une troisième partie pour le séchage de la feuille avec filtration vapeur-air.
The paper is thus made continuously on machines comprising three parts:
  • - a first part for the formation of the sheet in aqueous phase with water filtration
  • - a second part for pressing the sheet in the wet phase with water extraction
  • - and a third part for drying the sheet with vapor-air filtration.

A chaque stade de cette fabrication, on utilise des bandes transporteuses ou analogues, pour former, presser, sécher. Jusqu'à présent on utilisait des bandes obtenues par tissage avec ou sans fixation ultérieure d'une nappe par aiguilletage, sur une ou deux faces.At each stage of this manufacture, conveyor belts or the like are used to form, press, dry. Until now, bands obtained by weaving with or without subsequent fixing of a ply by needling, have been used on one or two faces.

D'une manière générale, lorsque les feutres ne sont pas accidentés, il apparaît que les habillages de la partie humide ne peuvent pas fonctionner lorsqu'ils ont atteint une épaisseur facile à définir théoriquement. Cette épaisseur limite EL, au delà de laquelle apparaissent dans le feutre des parties écrasées qui seront désignées ci-après par "écrasés", est la résultante de trois facteurs :

  • eF épaisseur maximale du feutre réduit à un bloc de matière homogène, ee épaisseur correspondant à la quantité d'eau transportée par le feutre,
  • ef correspondant à l'épaisseur de la feuille de papier avec eau contenue.
In general, when the felts are not damaged, it appears that the coverings of the wet part cannot function when they have reached a thickness which is easy to define theoretically. This limit thickness EL, beyond which appear crushed parts in the felt which will be designated below by "crushed", is the result of three factors:
  • eF maximum thickness of the felt reduced to a block of homogeneous material, ee thickness corresponding to the amount of water transported by the felt,
  • ef corresponding to the thickness of the sheet of paper with water contained.

Si donc

Figure imgb0001
on constate l'impossibilité de fabrication du papier de par l'apparition d'écrasés et par ailleurs à ces stades on a constaté que les rouleaux et cylindres des machines étaient soumis à des vibrations qui nuisaient à la qualité de la feuille obtenue.If so
Figure imgb0001
 we note the impossibility of manufacturing paper due to the appearance of crushed and also at these stages it was found that the rollers and cylinders of the machines were subjected to vibrations which adversely affected the quality of the sheet obtained.

Le but de l'invention est de remédier à ces inconvénients en réalisant un feutre permettant de réduire et même de supprimer ces vibrations et/ou ces écrasés.The object of the invention is to remedy these drawbacks by producing a felt which makes it possible to reduce and even eliminate these vibrations and / or these crushed.

L'invention a pour objet un feutre tel que habillage de papeterie constitué d'un tissu perméable comportant des fils de chaîne entrecroisés avec des fils de trame caractérisé par le fait qu'au moins certains desdits fils de chaîne sont constitués de fils tricotés de structure compressible et élastique de façon d'une part à conférer au feutre un effet d'amortissement des vibrations entre les rouleaux et cylindres de la machine de fabrication du papier et retarder l'apparition de parties écrasées et d'autre part que le feutre puisse reprendre sensiblement son épaisseur première lorsqu'il n'est plus comprimé.The subject of the invention is a felt such as stationery covering made of a permeable fabric comprising warp threads interspersed with weft threads characterized in that at least some of said warp threads are made of knitted structural threads compressible and elastic so as to give the felt a vibration damping effect between the rollers and cylinders of the papermaking machine and delay the appearance of crushed parts and on the other hand that the felt can resume substantially its first thickness when it is no longer compressed.

L'invention va être précisée par la description qui va suivre de deux modes de réalisation de l'invention donnés à titre d'exemple, en se référant aux figures du dessin annexé, dans lequel :

  • - La figure 1 représente par une vue en coupe suivant la largeur un canevas tissé double chaîne selon un-mode préféré de réalisation de l'invention.
  • - La figure 2 représente par une vue en coupe analogue à la précédente, un canevas tissé triple chaîne.
  • - La figure 3 représente un fil tricoté compressible à échelle agrandie.
  • - La figure 4 représente un tissu selon la figure 1 recouvert d'une nappe de fibres fixée par aiguilletage.
  • - La figure 5 représente un tissu selon la figure 2 recouvert d'une nappe de fibres.
The invention will be clarified by the following description of two embodiments of the invention given by way of example, with reference to the figures of the appended drawing, in which:
  • - Figure 1 shows in a sectional view along the width a double warp woven canvas according to a preferred embodiment of the invention.
  • - Figure 2 shows a sectional view similar to the previous one, a woven fabric triple warp.
  • - Figure 3 shows a compressible knitted yarn on an enlarged scale.
  • - Figure 4 shows a fabric according to Figure 1 covered with a sheet of fibers fixed by needling.
  • - Figure 5 shows a fabric according to Figure 2 covered with a sheet of fibers.

La figure 1 représente un tissu perméable à l'eau constitué de fils de trame 11, 12, 13, 14 et de deux couches de fils de chaîne 15, 16. Les fils de trame sont formés de fils monofilaments. La couche de fils de chaîne 15 est constituée de fils câblés non compressibles. Par contre la couche de fils 16 est constituée de fils tricotés de structure compressible et élastique, de préférence des fils constitués de mailles telles que représentées sur la figure 3.FIG. 1 represents a water-permeable fabric made up of weft threads 11, 12, 13, 14 and two layers of warp threads 15, 16. The weft threads are formed of monofilament threads. The layer of warp threads 15 is made up of non-compressible wired threads. On the other hand, the layer of threads 16 consists of knitted threads of compressible and elastic structure, preferably threads made of stitches as shown in FIG.

La couche de fils de chaîne compressibles et élastiques 16 peut être placée au contact des rouleaux de la machine et la couche de fils de chaîne non compressible 15 peut constituer la face du feutre en contact avec la feuille de papier.The layer of compressible and elastic warp threads 16 can be placed in contact with the rollers of the machine and the layer of non-compressible warp threads 15 can constitute the face of the felt in contact with the sheet of paper.

La figure 2 représente une variante de tissu constitué de fils de trame monofilaments 11, 12, 13, 14 et de trois couches de fils de chaine 15, 16. Les deux couches de fils de chaîne 15 sont constituées de fils câblés non compressibles. Par contre la couche de fils de chaîne 16 est constituée de fils tricotés de structure compressible et élastique. La couche compressible et élastique 16 est ainsi intercalée entre deux couches non compressibles 15.FIG. 2 represents a variant of fabric made up of monofilament weft threads 11, 12, 13, 14 and three layers of warp thread 15, 16. The two layers of warp thread 15 are made of non-compressible cabled threads. On the other hand, the layer of warp threads 16 consists of knitted threads of compressible and elastic structure. The compressible and elastic layer 16 is thus interposed between two non-compressible layers 15.

Le nombre de fils et de couches de fils compressibles et élastiques incorporés dans la fente dépend des qualités d'élasticité recherchées pour le feutre.The number of threads and layers of compressible and elastic threads incorporated in the slot depends on the qualities of elasticity desired for the felt.

Une nappe de fibres 17 peut être fixée ensuite sur le tissu par la technique d'aiguilletage, sur l'une ou sur les deux faces du tissu (fig.4 et 5) afin d'améliorer l'état de surface, par exemple pour conférer au feutre un état de surface doux et non marquant, évitant tout risque de marquage du papier.,Les fibres de la nappe 17 interpénétrent en partie le canevas du tissu et forment une nappe de 4 à 5 mm au dessus du canevas.A sheet of fibers 17 can then be fixed to the fabric by the needling technique, on one or both sides of the fabric (fig. 4 and 5) in order to improve the surface condition, for example for give the felt a soft and non-marking surface, avoiding any risk of marking the paper., The fibers of the tablecloth 17 partially interpenetrate the canvas of the fabric and form a tablecloth 4 to 5 mm above the canvas.

Les fils de trame et de chaîne sont de préférence en matière synthétique. Le fil compressible et élastique est formé à partir d'un monofilament ou multifilament tricoté de façon à constituer un cordon de structure à trois dimensions compressibles. Il peut comporter une âme support et un ou plusieurs fils tricotés enroulés autour de l'âme support.The weft and warp threads are preferably made of synthetic material. The compressible and elastic thread is formed from a monofilament or multifilament knitted so as to constitute a bead of structure with three compressible dimensions. It may include a support core and one or more knitted threads wound around the support core.

On utilise de préférence un fil tricoté de longueur plus grande que celle du feutre de façon que le fil travaille non tendu et que les mailles du fil tricoté conservent leur forme, dans le but d'obtenir un effet amortisseur maximum.Preferably, a knitted yarn longer than that of the felt is used so that the yarn works without tension and that the stitches of the knitted yarn retain their shape, in order to obtain a maximum damping effect.

L'introduction de fils compressibles et élastiques dans le feutre lui procure une certaine élasticité qui produit un effet d'amortissement tout en lui conservant par ailleurs ses qualités de résistance à l'usure, de perméabilité et d'absorption .The introduction of compressible and elastic threads into the felt gives it a certain elasticity which produces a damping effect while at the same time retaining its qualities of resistance to wear, permeability and absorption.

Lorsque le feutre est comprimé il reste toujours dans chaque fil tricoté compressible un vide résiduel permettant l'absorption de l'eau et diminuant la résistance à l'écoulement de l'eau. Il en résulte que même après un écrasement important de la nappe, ce feutre peut encore fonctionner.When the felt is compressed there is always a residual vacuum in each knitted yarn allowing the absorption of water and reducing the resistance to water flow. As a result, even after a significant crushing of the sheet, this felt can still function.

Le fil tricoté peut être traité chimiquement par exemple il peut être enrobé de résine de façon à augmenter sa résistanoe ` en particulier au détricotage.The knitted yarn can be chemically treated, for example it can be coated with resin so as to increase its resistance, in particular to untying.

L'utilisation d'un fil tricoté de section carrée ou analogue qui présente une certaine rigidité, dans la fabrication des feutres de papeterie permet d'obtenir un feutre compressible et élastique jouant un rôle d'amortisseur entre les rouleaux de la machine de fabrication du papier. L'utilisation des feutres tissés de fils tricotés dans les structures incompressibles permanentes ou progressives entraîne la permanence d'un écart d'épaisseur entre le canevas libre et le canevas comprimé. Cet écart d'épaisseur sera fonction de la position de la partie humide considérée. Cet écart sera grand pour les premières positions, faible pour les dernières positions, cet écart étant fonction de la siccité à obtenir pour la feuille de papier. L'utilisation de feutre en fil tricoté permet d'obtenir une élasticité verticale assurant une bonne tenue dans le temps de la feuille et suffisante pour l'obtention d'une bonne siccité liée à une bonne durée.The use of a knitted yarn of square section or the like which has a certain rigidity, in the manufacture of stationery felts makes it possible to obtain a compressible and elastic felt playing a role of damper between the rollers of the machine for manufacturing the paper. The use of felts woven from knitted yarns in permanent or progressive incompressible structures results in the permanence of a thickness difference between the free canvas and the compressed canvas. This difference in thickness will depend on the position of the wet part considered. This difference will be large for the first positions, small for the last positions, this difference being a function of the dryness to be obtained for the sheet of paper. The use of knitted yarn felt makes it possible to obtain vertical elasticity ensuring good resistance over time of the sheet and sufficient for obtaining good dryness linked to good duration.

L'invention est applicable notamment dans les trois étapes de fabrication du papier :

  • 1/ aux toiles de table de la partie égouttage
  • 2/ aux feutres de la partie humide pour le pressage de la feuille 3/ aux feutres de la partie sècherie.
The invention is applicable in particular in the three stages of papermaking:
  • 1 / to the table cloths of the draining part
  • 2 / with felts in the wet part for pressing the sheet 3 / with felts in the drying part.

Mais elle présente un plus grand nombre d'avantages dans la partie humide.But it has a greater number of advantages in the wet part.

Dans des variantes le fil tricoté peut avoir une constitution différente et un diamètre variable. Par exemple il peut être réalisé à partir d'un monofilament ou d'un multifilament en matière synthétique ou métallique, il peut être enrobé ; il peut encore être constitué d'une âme entourée de fils ou fibres. L'utilisation dans la fabrication du papier d'un feutre comportant des fils tricotés compressibles présente les avantages suivants :

  • 1/ Elimination ou retardement de l'apparition des écrasés qui traduit le fait que le feutre, par laminage, a atteint l'épaisseur minimale au-dessous de laquelle il ne peut plus fonctionner.
  • 2/ Transport d'eau maximal, eau éliminée aux caisses aspirantes entraînant pour le feutre une augmentation de son potentiel de net- 'toyage.
  • 3/ Réalisation d'un amortissement diminuant ou supprimant les vibrations.
In variants, the knitted yarn can have a different constitution and a variable diameter. For example it can be realized from a monofilament or a multifilament made of synthetic or metallic material, it can be coated; it can also consist of a core surrounded by threads or fibers. The use in the manufacture of paper of a felt comprising compressible knitted threads has the following advantages:
  • 1 / Elimination or delay of the appearance of crushed which reflects the fact that the felt, by rolling, has reached the minimum thickness below which it can no longer function.
  • 2 / Maximum water transport, water eliminated in the suction boxes causing the felt to increase its cleaning potential.
  • 3 / Realization of a damping reducing or eliminating the vibrations.

Claims (6)

1/ Feutre de papeterie constitué par un tissu perméable comportant des fils de chaîne (15, 16) entrecroisés avec des fils de trame (11, 12, 13, 14), caractérisé par le fait qu'au moins certains desdits fils de chaîne (16) sont constitués de fils tricotés de structure compressible et élastique de façon d'une part à conférer au feutre un effet d'amortissement des vibrations entre les rouleaux et cylindres d'une machine de fabrication du papier et retarder l'apparition de parties écrasées et d'autre part que le feutre puisse reprendre sensiblement son épaisseur première lorsqu'il n'est plus comprimé.1 / Stationery felt consisting of a permeable fabric comprising warp threads (15, 16) intertwined with weft threads (11, 12, 13, 14), characterized in that at least some of said warp threads ( 16) consist of knitted yarns of compressible and elastic structure so as to give the felt a vibration damping effect between the rollers and cylinders of a paper-making machine and delay the appearance of crushed parts and on the other hand that the felt can regain its initial thickness appreciably when it is no longer compressed. 2/ Feutre selon la revendication 1, caractérisé par le fait qu'au moins une couche de fils de chaîne (16) est constituée de fils tricotés de structure compressible et élastique.2 / felt according to claim 1, characterized in that at least one layer of warp son (16) consists of knitted son of compressible and elastic structure. 3/ Feutre selon la revendication 1 ou 2, caractérisé par le fait que les fils tricotés compressibles sont introduits en surface de façon à modifier l'effet de surface du feutre.3 / felt according to claim 1 or 2, characterized in that the compressible knitted threads are introduced on the surface so as to modify the surface effect of the felt. 4/ Feutre selon l'une des revendications 1 à 3, caractérisé par le fait que le fil tricoté est de longueur plus grande que celle du feutre dans lequel il est intercalé de façon qu'il puisse travailler sans tension et que les mailles du fil tricoté conservent leur forme. 5/ Feutre selon l'une des revendications 1 à 3, caractérisé par le fait que le fil tricoté est constitué d'une âme support entourée d'un ou plusieurs fils tricotés.4 / felt according to one of claims 1 to 3, characterized in that the knitted yarn is of greater length than that of the felt in which it is interposed so that it can work without tension and that the stitches of the yarn knitted fabrics retain their shape. 5 / felt according to one of claims 1 to 3, characterized in that the knitted yarn consists of a support core surrounded by one or more knitted son. 6/ Feutre selon l'une des revendications 1 à 5, caractérisé par le fait que le fil tricoté est constitué d'un fil simple tel qu'un monofilament, dont les mailles ne sont pas tendues.6 / felt according to one of claims 1 to 5, characterized in that the knitted yarn consists of a single yarn such as a monofilament, whose stitches are not stretched. 7/ Feutre selon l'une des revendications 1 à 5, caractérisé par le fait que le fil tricoté est du type représenté à la figure 3.7 / felt according to one of claims 1 to 5, characterized in that the knitted yarn is of the type shown in FIG. 3.
EP82101847A 1981-03-11 1982-03-09 Papermaker's felt for the wet end Expired - Lifetime EP0059973B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82101847T ATE16030T1 (en) 1981-03-11 1982-03-09 PAPERMAKER FELTS FOR THE WET SECTION.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8104839 1981-03-11
FR8104839 1981-03-11

Publications (3)

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EP0059973A1 true EP0059973A1 (en) 1982-09-15
EP0059973B1 EP0059973B1 (en) 1985-10-09
EP0059973B2 EP0059973B2 (en) 1990-09-05

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EP82101847A Expired - Lifetime EP0059973B2 (en) 1981-03-11 1982-03-09 Papermaker's felt for the wet end

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EP0106132A2 (en) * 1982-09-30 1984-04-25 Huyck Corporation Novel papermaker's fabrics containing open mesh yarns
EP0211426A2 (en) * 1985-08-05 1987-02-25 Hermann Wangner GmbH & Co. KG Multi-layer fabric for paper making machines having an improved stability and permeability
EP0290653A1 (en) * 1987-05-14 1988-11-17 Thomas Josef Heimbach GmbH & Co. Material web
US5066532A (en) * 1985-08-05 1991-11-19 Hermann Wangner Gmbh & Co. Woven multilayer papermaking fabric having increased stability and permeability and method
EP0549147A1 (en) * 1991-12-18 1993-06-30 Albany International Corp. Press fabrics for paper machines
EP0590927A1 (en) * 1992-10-02 1994-04-06 Asten, Inc. Papermakers wet press felt with high contact, resilient base fabric

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AT395184B (en) * 1990-07-04 1992-10-12 Andritz Ag Maschf DEVICE FOR TREATING CELLULOSE AND OR OR MULTIPLE MIXTURES OR SUSPENSIONS
US5094719A (en) * 1990-10-03 1992-03-10 501 Asten Group, Inc. Belt filter press fabric
US5244543A (en) * 1990-10-03 1993-09-14 Asten Group, Inc. Belt filter press fabric
US5651394A (en) * 1996-02-02 1997-07-29 Huyck Licensco, Inc. Papermakers fabric having cabled monofilament oval-shaped yarns
US5945357A (en) * 1997-10-07 1999-08-31 Wangner Systems Corporation Multi-layer press fabric comprising looped, knit yarns woven in an upper layer of fabric
US6213164B1 (en) * 1999-03-11 2001-04-10 Geschmay Corporation Pintle seamed press felt
AT410682B (en) * 1999-09-01 2003-06-25 Huyck Austria Compacting felt, used for machines which process and finish textile materials giving them non-shrink character, comprises woven base supporting needle-bonded non-woven layer
JP2004232098A (en) * 2003-01-28 2004-08-19 Ichikawa Woolen Textile Co Ltd Press felt for papermaking and method for producing the same
JP2006037270A (en) * 2004-07-26 2006-02-09 Ichikawa Co Ltd Press felt for papermaking and method for producing the same
JP2007046196A (en) * 2005-08-10 2007-02-22 Ichikawa Co Ltd Press felt for paper making
DE602006018765D1 (en) * 2005-09-02 2011-01-20 Albany Int Corp NEEDLE BAND HIGH THICKNESS AND ELASTICITY
US7712336B2 (en) * 2007-01-31 2010-05-11 Albany International Corp. Subassembly for industrial fabrics
PT2584091E (en) * 2011-10-22 2014-05-27 Heimbach Gmbh & Co Kg Woven papermaker fabric, in particular a forming fabric

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FR1109424A (en) * 1954-06-10 1956-01-27 Manufactures De Velours & Pelu Articles, manufactured textiles made from chain yarns
FR1557944A (en) * 1967-02-06 1969-02-21

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FR1557944A (en) * 1967-02-06 1969-02-21

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0106132A2 (en) * 1982-09-30 1984-04-25 Huyck Corporation Novel papermaker's fabrics containing open mesh yarns
EP0106132A3 (en) * 1982-09-30 1984-08-29 Huyck Corporation Novel papermaker's fabrics containing open mesh yarns
EP0211426A2 (en) * 1985-08-05 1987-02-25 Hermann Wangner GmbH & Co. KG Multi-layer fabric for paper making machines having an improved stability and permeability
EP0211426A3 (en) * 1985-08-05 1987-05-27 Hermann Wangner GmbH & Co. KG Multi-layer fabric for paper making machines having an improved stability and permeability
US5066532A (en) * 1985-08-05 1991-11-19 Hermann Wangner Gmbh & Co. Woven multilayer papermaking fabric having increased stability and permeability and method
EP0290653A1 (en) * 1987-05-14 1988-11-17 Thomas Josef Heimbach GmbH & Co. Material web
EP0549147A1 (en) * 1991-12-18 1993-06-30 Albany International Corp. Press fabrics for paper machines
EP0590927A1 (en) * 1992-10-02 1994-04-06 Asten, Inc. Papermakers wet press felt with high contact, resilient base fabric

Also Published As

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EP0059973B1 (en) 1985-10-09
ZA821632B (en) 1983-04-27
FI820791L (en) 1982-09-12
US4883097A (en) 1989-11-28
NO154760C (en) 1986-12-17
EP0059973B2 (en) 1990-09-05
NO154760B (en) 1986-09-08
GR75898B (en) 1984-08-02
NO820738L (en) 1982-09-13
FI64825C (en) 1986-12-01
ES275023Y (en) 1984-10-16
FI64825B (en) 1983-09-30
US4856562A (en) 1989-08-15
ATE16030T1 (en) 1985-10-15
DE3266747D1 (en) 1985-11-14
ES275023U (en) 1984-03-16

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