EP0133836A1 - Process for adhesively binding a permeable layer to an interbond fibrous carrier, and the non-wovens for paper-making machines and filter tissues so produced - Google Patents

Process for adhesively binding a permeable layer to an interbond fibrous carrier, and the non-wovens for paper-making machines and filter tissues so produced Download PDF

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Publication number
EP0133836A1
EP0133836A1 EP84401659A EP84401659A EP0133836A1 EP 0133836 A1 EP0133836 A1 EP 0133836A1 EP 84401659 A EP84401659 A EP 84401659A EP 84401659 A EP84401659 A EP 84401659A EP 0133836 A1 EP0133836 A1 EP 0133836A1
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EP
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Prior art keywords
support
layer
special
threads
felt
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Granted
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EP84401659A
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German (de)
French (fr)
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EP0133836B1 (en
Inventor
Maurice Gauthier
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COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
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COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
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Priority to AT84401659T priority Critical patent/ATE30345T1/en
Publication of EP0133836A1 publication Critical patent/EP0133836A1/en
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Publication of EP0133836B1 publication Critical patent/EP0133836B1/en
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    • 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

Definitions

  • the present invention relates to a method of bonding a layer of permeable material on a support consisting of threads linked together.
  • the support comprises special thermoplastic wires which are heated so as to melt them before the permeable layer is applied to them.
  • This process has the disadvantage of partially destroying the texture of the support since certain special yarns are completely melted.
  • the bonding has imperfections because the thermosplastic molten material when the wire is completely melted spreads irregularly between the remaining wires of the support and the layer of permeable material.
  • the process according to the invention which does not have these drawbacks is characterized in that, during the manufacture of the support, special wires are provided on one face having a core and an external part made of thermoplastic, the melting temperature of which is lower than that of the core and those of the other wires and in that the said face is heated until the external part of the said special wires is melted, then the layer of permeable material is applied to this face.
  • the present invention is particularly advantageous for the manufacture of felts for stationery in which the permeable layer makes it possible inter alia to remove the marking of the sheet of paper under the effect of pressure and to transport the water extracted from the sheet of paper that we manufacture.
  • Stationery felts are usually manufactured by fastening by needling the layer of permeable material consisting of fibers bonded together on a support of woven threads (even if a additional bonding between support and permeable layer is carried out as described in document DT-A 1807329.
  • the felt thus formed has several defects. First of all, its permeability has decreased since fibers have been introduced into the support.
  • the layer of permeable material is compacted and provided with numerous small funnels at the places where the needles have penetrated.
  • the support is provided with joining means (loops, spirals etc ... intended to be connected by a rod so that the felt forms an endless band) before needling it damages the means of joining.
  • the presence in the fiber jointing means following the needling makes it more difficult for the rod to pass during joining.
  • the desired support can be chosen by using, for example, threads resistant to chemical degradation and even if their tenacity is fairly low, there is no longer any risk of it being reduced by needling below a prohibitive value.
  • weft threads will preferably constitute the weft threads of the heated face, said threads then being perpendicular to the direction of unwinding of the felt.
  • the method according to the invention is also very advantageous for the manufacture of filter fabrics in which the permeable layer is used to filter a liquid or a gas and to retain impurities especially when the support which gives the mechanical characteristics is provided with joining means. .
  • Figures 1 and 2 show a support and a layer used in the method according to the invention.
  • FIG. 3 schematically represents a device for implementing the method according to the invention.
  • the woven support 20 has warp threads 1 ', 2', 3 ', 4', 5 ', 6', 7 ', 8' of period eight, and weft threads 1, 2, 3, 4, 5 , 6, 7, 8, 9, 10, 11, .12 « (see figure 1).
  • weft threads 1, 3, 4, 6, 7, 9, 10, 12 are in relief as we can see it on section II-II (figure 2).
  • the weft threads 1, 3, 4, 6, 7, 9, 10, 12 in relief are special two-component monofilament threads. They have a polyester core 24 surrounded by a polyamide 6 sheath 25.
  • the other warp threads 1 ′, 2 ′, 3 ′, 4 ′, 5 ′, 6 ′, 7 ′, 8 ′ and weft 2, 5, 8, 11 are made of polyester.
  • the melting point of polyester is 230 ° C and that of polyamide 6 is 180 ° C.
  • the support can be manufactured by weaving, knitting, assembling spirals etc ...
  • the special two-component yarns comprise a core composed of a monofilament or of several filaments or even of threads of cut fibers and an external part surrounding the core which may be a sheath or threads surrounding the core having a lower melting point to that of the core and of the other wires constituting the support.
  • the permeable material layer is chosen according to the desired characteristics of the final product.
  • This layer 26 can consist of continuous or discontinuous fibers linked together by needling, by fusion, by impregnation with resin etc .
  • the support 20 can be terminated at each end by joining means 23 (loops, spirals, etc.).
  • the device making it possible to implement the invention comprises heating elements, for example infrared 30, two rollers 31, 32 of which the first has its fixed axis and the second of which is applied against the first, a heated cylinder 33 and return rollers 34, 35 and a tensioner 36.
  • heating elements for example infrared 30, two rollers 31, 32 of which the first has its fixed axis and the second of which is applied against the first, a heated cylinder 33 and return rollers 34, 35 and a tensioner 36.
  • the permeable layer 26 is wound on a cylinder 37.
  • the support is mounted on the rollers 34, 35, and on the tensioner 36 it passes between the rollers 31, 32 and around the cylinder 31.
  • the cylinder 31 is driven.
  • the face 21 with the special wires of the support passes under the heating elements 30 which heats it to a temperature which melts the external part of the special wires (for example 200 ° C.).
  • the permeable layer 26 is applied by the roller 32 to the face 21 with the molten wires.
  • the layer 26 adheres to the support 21 and the layer 26 and support 20 assembly is wound around the cylinder 33 (layer 26 against the cylinder 33) which is heated to low temperature (120 ° C.) to improve the surface finish.

Abstract

Process for heat-sealing a layer of pervious material (26) to a support (20) formed of interwoven threads characterized in that during the fabrication of the support (20) there are provided on one side (21) special threads having a core and a thermoplastic outer part of which the melting temperature is lower than that of the core and than those of other threads, and in that the side (21) is heated until the outer part of the special threads is melted, whereafter the layer (26) is applied to said side. The mechanical and tightness qualities of the support and of the layer have thereby been preserved. Utilization of the process for the making of paper felts and filter fabrics.

Description

La présente invention a trait à un procédé de collage d'une couche de matière perméable sur un support constitué de fils liés entre eux.The present invention relates to a method of bonding a layer of permeable material on a support consisting of threads linked together.

Un tel procédé est décrit dans le document GB-A 994914.Such a method is described in document GB-A 994914.

Dans ce procédé le support comporte des fils spéciaux en thermoplastique qui sont chauffés de façon à les mettre en fusion avant que la couche perméable y soit appliquée.In this process, the support comprises special thermoplastic wires which are heated so as to melt them before the permeable layer is applied to them.

Ce procédé présente l'inconvénient de détruire partiellement la texture du support puisque certains fils spéciaux sont complètement fondus. De plus le collage présente des imperfections car la matière fondue thermosplastique lorsque le fil est complétement fondu se répand d'une façon irrégulière entre les fils restants du support et la couche de matière perméable.This process has the disadvantage of partially destroying the texture of the support since certain special yarns are completely melted. In addition, the bonding has imperfections because the thermosplastic molten material when the wire is completely melted spreads irregularly between the remaining wires of the support and the layer of permeable material.

Le procédé selon l'invention ne présentant pas ces inconvénients est caractérisé en ce que lors de la fabrication du support on a prévu sur une face des fils spéciaux ayant une âme et une partie externe en thermoplastique dont la température de fusion est inférieure à celle de l'âme et à celles des autres fils et en ce qu'on chauffe ladite face jusqu'à mettre en fusion la partie externe desdits fils spéciaux puis on applique la couche de matière perméable sur cette face.The process according to the invention which does not have these drawbacks is characterized in that, during the manufacture of the support, special wires are provided on one face having a core and an external part made of thermoplastic, the melting temperature of which is lower than that of the core and those of the other wires and in that the said face is heated until the external part of the said special wires is melted, then the layer of permeable material is applied to this face.

Lorsque les fils spéciaux sont chauffés seule la partie externe fond et assure un pontage entre l'âme de ces fils et la couche en matière perméable. Le support n'est donc pas partiellement détruit et la liaison est excellente entre support et couche perméable.When the special threads are heated, only the outer part melts and provides bridging between the core of these threads and the layer of permeable material. The support is therefore not partially destroyed and the bond is excellent between support and permeable layer.

La présente invention est particulièrement intéressante pour la fabrication de feutres pour papeterie dans laquelle la couche perméable permet entre autre de supprimer le marquage de la feuille de papier sous l'effet de la pression et de transporter l'eau extrait de la feuille de papier que l'on fabrique.The present invention is particularly advantageous for the manufacture of felts for stationery in which the permeable layer makes it possible inter alia to remove the marking of the sheet of paper under the effect of pressure and to transport the water extracted from the sheet of paper that we manufacture.

Les feutres de papeterie sont habituellement fabriqués par fixation par aiguilletage de la couche en matière perméable constituée de fibres liées entre elles sur un support en fils tissés (même si un collage additionnel entre support et couche perméable est effectué comme décrit dans le document DT-A 1807329.Stationery felts are usually manufactured by fastening by needling the layer of permeable material consisting of fibers bonded together on a support of woven threads (even if a additional bonding between support and permeable layer is carried out as described in document DT-A 1807329.

Le feutre ainsi formé présente plusieurs défauts. Tout d'abord sa perméabilité a diminuée étant donné que des fibres ont été introduites dans le support.The felt thus formed has several defects. First of all, its permeability has decreased since fibers have been introduced into the support.

Ensuite la couche de matière perméable se trouve compactée et munie de nombreux petits entonnoirs aux endroits où les aiguilles ont pénétré.Then the layer of permeable material is compacted and provided with numerous small funnels at the places where the needles have penetrated.

Enfin les aiguilles ont blessé le support ce qui diminue la durée de vie du feutre et favorise sa déformation.Finally the needles have injured the support which shortens the life of the felt and promotes its deformation.

D'autre part lorsque le support est muni de moyens de jonctionnement (boucles, spirales etc.... destinées a être reliées par un jonc pour que le feutre forme une bande sans fin) avant l'aiguilletage celui-ci endommage les moyens de jonctionnement. De plus la présence dans les moyens de jonetionnement de fibres à la suite de l'aiguilletage rend plus difficile le passage du jonc lors du jonctionnement.On the other hand when the support is provided with joining means (loops, spirals etc ... intended to be connected by a rod so that the felt forms an endless band) before needling it damages the means of joining. In addition, the presence in the fiber jointing means following the needling makes it more difficult for the rod to pass during joining.

Grâce au procédé selon l'invention on peut choisir le support désiré en utilisant par exemple des fils résistants à la dégradation chimique et même si leur ténacité est assez basse, elle ne risque plus d'être diminuée par l'aiguilletage en dessous d'une valeur prohibitive.Thanks to the process according to the invention, the desired support can be chosen by using, for example, threads resistant to chemical degradation and even if their tenacity is fairly low, there is no longer any risk of it being reduced by needling below a prohibitive value.

Pour d'autres applications on peut choisir des supports très résistants qui évitent la déformation lors de la rotation du feutre ou l'abrasion lors du contact avec les rouleaux sans craindre sa destruction partielle lors de l'aiguilletage.For other applications, it is possible to choose very resistant supports which avoid deformation during the rotation of the felt or abrasion during contact with the rollers without fear of its partial destruction during needling.

Pour un feutre de papeterie les fils de trame constitueront de préférence les fils de trame de la face chauffée lesdits fils étant alors perpendiculaires à la direction de déroulement du feutre.For a stationery felt the weft threads will preferably constitute the weft threads of the heated face, said threads then being perpendicular to the direction of unwinding of the felt.

Ainsi le contact entre support et couche perméable est bon et permet de maintenir à un bas niveau les contraintes entre couche perméable et support qui sont dues aux flexions lors du mouvement du feutre.Thus the contact between support and permeable layer is good and makes it possible to maintain at a low level the stresses between permeable layer and support which are due to bending during the movement of the felt.

On peut en variante mettre les fils spéciaux selon la chaîne donc dans le sens de déroulement des feutres. Le contact par points entre fils de chaîne et couche perméable permet de maintenir à un bas niveau les contraintes entre couche perméable et support qui sont dues aux flexions lors du mouvement du feutre.One can alternatively put the special son along the chain so in the direction of unwinding of the felts. Point contact between warp and permeable layer keeps it low the stresses between the permeable layer and the support which are due to bending during the movement of the felt.

Le procédé selon l'invention est également très intéressant pour la fabrication de tissus filtrants dans lesquels la couche perméable sert à filtrer un liquide ou un gaz et à retenir les impuretés spécialement lorsque le support qui donne les caractéristiques mécaniques est muni de moyens.de jonctionnement.The method according to the invention is also very advantageous for the manufacture of filter fabrics in which the permeable layer is used to filter a liquid or a gas and to retain impurities especially when the support which gives the mechanical characteristics is provided with joining means. .

Il faut souligner que l'emploi de l'invention permet de ne pas utiliser de machines d'aiguilletage qui sont relativement coûteuses.It should be emphasized that the use of the invention makes it possible not to use needling machines which are relatively expensive.

La présente invention va être maintenant décrite plus en détail en se référant à un mode de réalisation particulier et représenté par les figures annexées.The present invention will now be described in more detail with reference to a particular embodiment and represented by the appended figures.

Les figures 1 et 2 représentent un support et une couche utilisés dans le procédé selon l'invention.Figures 1 and 2 show a support and a layer used in the method according to the invention.

La figure 3 représente schématiquement un dispositif pour la mise en oeuvre du procédé selon l'invention.FIG. 3 schematically represents a device for implementing the method according to the invention.

Le support tissé 20 comporte des fils de chaîne 1', 2', 3', 4', 5', 6', 7', 8' de période huit, et des fils de trame 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, .12 ...... (voir figure 1).The woven support 20 has warp threads 1 ', 2', 3 ', 4', 5 ', 6', 7 ', 8' of period eight, and weft threads 1, 2, 3, 4, 5 , 6, 7, 8, 9, 10, 11, .12 ...... (see figure 1).

Sur la face supérieure 21 qui est l'endroit du support 20, les fils de trame 1, 3, 4, 6, 7, 9, 10, 12 (c'est-à-dire deux fils sur trois) sont en relief comme on le voit sur la coupe II-II (figure 2).On the upper face 21 which is the place of the support 20, the weft threads 1, 3, 4, 6, 7, 9, 10, 12 (that is to say two threads out of three) are in relief as we can see it on section II-II (figure 2).

Par contre sur la face inférieure 22 qui est l'envers du support 20 les autres fils de trame 2, 5, 8, 11 (c'est-à-dire un fil sur trois) sont disposés sous les fils de chaîne.By cons on the underside 22 which is the reverse of the support 20 the other weft son 2, 5, 8, 11 (that is to say one thread in three) are arranged under the warp son.

Les fils de trame 1, 3, 4, 6, 7, 9, 10, 12 en relief sont des fils spéciaux monofilaments bicomposants. Ils comportent une âme 24 en polyester entourée d'une gaine 25 en polyamide 6. Les autres fils de chaîne 1', 2', 3', 4', 5', 6', 7', 8' et de trame 2, 5, 8, 11 sont en polyester.The weft threads 1, 3, 4, 6, 7, 9, 10, 12 in relief are special two-component monofilament threads. They have a polyester core 24 surrounded by a polyamide 6 sheath 25. The other warp threads 1 ′, 2 ′, 3 ′, 4 ′, 5 ′, 6 ′, 7 ′, 8 ′ and weft 2, 5, 8, 11 are made of polyester.

Pour obtenir ces fils bicomposants on peut procéder soit par extrusion, soit par tissage, soit encore par guipage.To obtain these two-component threads, it is possible either by extrusion, or by weaving, or even by covering.

La température de fusion du polyester est de 230°C et celle du polyamide 6 est de 180°C.The melting point of polyester is 230 ° C and that of polyamide 6 is 180 ° C.

Le support peut être fabriqué par tissage, tricotage, assemblage de spirales etc....The support can be manufactured by weaving, knitting, assembling spirals etc ...

Les fils spéciaux bicomposants comportent une âme composée d'un monofilament ou de plusieurs filaments ou même de filets de fibres coupés et une partie externe entourant l'âme ce qui peut être une gaine ou des filets entourant l'âme ayant un point de fusion inférieur à celui de l'âme et des autres fils constituant le support.The special two-component yarns comprise a core composed of a monofilament or of several filaments or even of threads of cut fibers and an external part surrounding the core which may be a sheath or threads surrounding the core having a lower melting point to that of the core and of the other wires constituting the support.

Il s'ensuit qu'après fusion de la partie externe, les fils spéciaux conservent certaines de leurs caractéristiques mécaniques.It follows that after fusion of the external part, the special wires retain some of their mechanical characteristics.

Puisqu'il n'y a pas de limitations dues à l'aiguilletage, la couche de matière perméable est choisie en fonction des caractéristiques désirées du produit final.Since there are no limitations due to needling, the permeable material layer is chosen according to the desired characteristics of the final product.

Cette couche 26 peut être constituée de fibres continues ou discontinues liées entre elles par aiguilletage, par fusion, par imprégnation avec de la résine etc.......This layer 26 can consist of continuous or discontinuous fibers linked together by needling, by fusion, by impregnation with resin etc .......

Elle pourrait être également constituée d'un film extrudé qui est ou a été rendu perméable au fluide.It could also consist of an extruded film which is or has been made permeable to fluid.

Le support 20 peut se terminer à chaque extrémité par des moyens de jonetionnement 23 (boucles, spirales, etc.....).The support 20 can be terminated at each end by joining means 23 (loops, spirals, etc.).

Le dispositif permettant de mettre en oeuvre l'invention (figure 3) comporte des éléments de chauffe, par exemple infrarouges 30, deux rouleaux 31, 32 dont le premier a son axe fixe et dont le second est appliqué contre le premier, un cylindre chauffé 33 et des rouleaux de rappel 34, 35 ainsi qu'un tendeur 36.The device making it possible to implement the invention (FIG. 3) comprises heating elements, for example infrared 30, two rollers 31, 32 of which the first has its fixed axis and the second of which is applied against the first, a heated cylinder 33 and return rollers 34, 35 and a tensioner 36.

La couche perméable 26 est enroulé sur un cylindre 37.The permeable layer 26 is wound on a cylinder 37.

Le support est monté sur les rouleaux 34, 35, et sur le tendeur 36 il passe entre les rouleaux 31, 32 et autour du cylindre 31. Le cylindre 31 est entraîné.The support is mounted on the rollers 34, 35, and on the tensioner 36 it passes between the rollers 31, 32 and around the cylinder 31. The cylinder 31 is driven.

La face 21 avec les fils spéciaux du support (orthogonaux au sens de défilement) passe sous les éléments de chauffe 30 qui la chauffe à une température faisant fondre la partie externe des fils spéciaux (par exemple 200°C). La couche perméable 26 est appliqué par le rouleau 32 sur la face 21 avec les fils en fusion. A la sortie des rouleaux 31, 32 la couche 26 adhère sur le support 21 et l'ensemble couche 26 et support 20 est enroulé autour du cylindre 33 (couche 26 contre le cylindre 33) qui est chauffé à basse température (120°C) afin d'améliorer l'état de surface.The face 21 with the special wires of the support (orthogonal to the direction of travel) passes under the heating elements 30 which heats it to a temperature which melts the external part of the special wires (for example 200 ° C.). The permeable layer 26 is applied by the roller 32 to the face 21 with the molten wires. At the exit of the rollers 31, 32 the layer 26 adheres to the support 21 and the layer 26 and support 20 assembly is wound around the cylinder 33 (layer 26 against the cylinder 33) which is heated to low temperature (120 ° C.) to improve the surface finish.

Il faudra bien entendu prendre des précautions au départ et à la fin de l'opération pour que les extrémités de la couche perméable ne se chevauchent pas.It will of course be necessary to take precautions at the start and at the end of the operation so that the ends of the permeable layer do not overlap.

Il est évident qu'en munissant les deux faces 21, 22 du support 20 de fils spéciaux on pourra y coller une couche 26 des deux côtés.It is obvious that by providing the two faces 21, 22 of the support 20 with special wires, it will be possible to stick a layer 26 on both sides.

Pour les feutres de papeterie il est préférable de disposer les fils spéciaux selon la trame (orthogonalement au sens de défilement du feutre) comme représenté sur les figures.For stationery felts it is preferable to arrange the special threads according to the weft (orthogonally to the direction of travel of the felt) as shown in the figures.

On peut également disposer les fils spéciaux selon la chaîne 1', 2', 3', 4', 5', 6', 7', 8' donc orientés dans le sens de défilement du feutre.We can also arrange the special threads along the chain 1 ', 2', 3 ', 4', 5 ', 6', 7 ', 8' therefore oriented in the direction of travel of the felt.

Avec ces deux dispositions les contraintes de flexion entre couche perméable 26 et support 21 lors du mouvement du feutre sont réduites.With these two arrangements, the bending stresses between the permeable layer 26 and the support 21 during the movement of the felt are reduced.

Claims (7)

1/ Procédé de collage d'une couche de matière perméable (26) sur un support (20) constitué de fils (1', 2', 3', 4', 5', 6', 7', 8', 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12) liés entre eux, caractérisé en ce que lors de la fabrication du support (20) on a prévu sur une face (21) des fils spéciaux (1, 3, 4, 6, 7, 9, 10, 12) ayant une âme (24) et une partie externe (25) en thermoplastique dont la température de fusion est inférieure à celle de l'âme (25) et à celles des autres fils (1', 2', 3', 4', 5', 6', 7', 8', 2, 5, 8, 11) et en ce qu'on chauffe ladite face (21) jusqu'à mettre en fusion la partie externe (25) desdits fils spéciaux (1, 3, 4, 6, 7, 9, 10, 12) puis on applique la couche (26) sur cette face (21).1 / Method for bonding a layer of permeable material (26) on a support (20) consisting of wires (1 ', 2', 3 ', 4', 5 ', 6', 7 ', 8', 1 , 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12) linked together, characterized in that, during the manufacture of the support (20), one provided on one face (21) special wires (1, 3, 4, 6, 7, 9, 10, 12) having a core (24) and an external part (25) made of thermoplastic, the melting temperature of which is lower than that of the core (25) and those of the other wires (1 ', 2', 3 ', 4', 5 ', 6', 7 ', 8', 2, 5, 8, 11) and in that the said face is heated (21 ) until the external part (25) of said special wires (1, 3, 4, 6, 7, 9, 10, 12) is melted, then the layer (26) is applied to this face (21). 2/ Procédé selon la revendication 1, caractérisé en ce que les fils spéciaux (1, 3, 4, 6, 7, 9, 10, 12) ont une âme (24) en polyester et une partie externe (25) constituée d'une gaine en polyamide 6.en ce que les autres fils (1', 2', 3', 4', 5', 6', 7', g', 2, 5, 8, 11) sont en polyester et en ce que la face (21) comprenant les fils spéciaux (1, 3, 4, 6, 7, 9, 10, 12) est chauffée à une température voisine de 200°C avant application de la couche (26).2 / A method according to claim 1, characterized in that the special son (1, 3, 4, 6, 7, 9, 10, 12) have a core (24) of polyester and an external part (25) consisting of a polyamide sheath 6.in that the other threads (1 ', 2', 3 ', 4', 5 ', 6', 7 ', g', 2, 5, 8, 11) are made of polyester and that the face (21) comprising the special wires (1, 3, 4, 6, 7, 9, 10, 12) is heated to a temperature in the region of 200 ° C before application of the layer (26). 3/ Procédé selon l'une des revendications précédentes, caractérisé en ce que le support (20) est muni de moyens de jonetionnement (23) avant l'opération de fixation de la couche (26).3 / Method according to one of the preceding claims, characterized in that the support (20) is provided with joining means (23) before the operation of fixing the layer (26). 4/ Feutre pour machine à papier fabriqué suivant le procédé selon l'une des revendications 1 à 3.4 / Felt for paper machine manufactured according to the method according to one of claims 1 to 3. 5/ Feutre selon la revendication 4, caractérisé en ce que les fils spéciaux sont disposés selon la trame de la face (21) orthogonalement au sens de défilement du feutre.5 / felt according to claim 4, characterized in that the special son are arranged along the frame of the face (21) orthogonally to the direction of travel of the felt. 6/ Feutre selon la revendication 4, caractérisé en ce que les fils spéciaux sont disposés selon la chaîne du support (20) dans le sens de défilement du feutre.6 / felt according to claim 4, characterized in that the special son are arranged along the chain of the support (20) in the direction of travel of the felt. 7/ Tissu filtrant fabriqué suivant le procédé selon l'une des revendications 1 à 3.7 / filter cloth manufactured according to the method according to one of claims 1 to 3.
EP84401659A 1983-08-11 1984-08-10 Process for adhesively binding a permeable layer to an interbond fibrous carrier, and the non-wovens for paper-making machines and filter tissues so produced Expired EP0133836B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84401659T ATE30345T1 (en) 1983-08-11 1984-08-10 PROCESS FOR ADHERING A PERMEABLE LAYER TO A COUPLED FIBERS SUPPORT, AND THE PAPER MACHINE FELTS AND FILTER FABRICS SO PRODUCED.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8313213 1983-08-11
FR8313213 1983-08-11

Publications (2)

Publication Number Publication Date
EP0133836A1 true EP0133836A1 (en) 1985-03-06
EP0133836B1 EP0133836B1 (en) 1987-10-21

Family

ID=9291574

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EP84401659A Expired EP0133836B1 (en) 1983-08-11 1984-08-10 Process for adhesively binding a permeable layer to an interbond fibrous carrier, and the non-wovens for paper-making machines and filter tissues so produced

Country Status (8)

Country Link
EP (1) EP0133836B1 (en)
JP (1) JPS60502012A (en)
AT (1) ATE30345T1 (en)
AU (1) AU569912B2 (en)
CA (1) CA1251124A (en)
DE (1) DE3466902D1 (en)
FI (1) FI86657C (en)
WO (1) WO1985000840A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0741204A3 (en) * 1995-05-04 1997-07-30 Huyck Licensco Inc Papermakers' press fabric
EP0943730A1 (en) * 1998-03-16 1999-09-22 Jwi Ltd Multilayer porous fabric
EP1013822A2 (en) * 1998-12-22 2000-06-28 Voith Fabrics Heidenheim GmbH & Co.KG Fabric for the wet end of a papermaking machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0239207A3 (en) * 1986-03-26 1989-11-08 ASTEN GROUP INC. (a Delaware corporation) Method of manufacturing papermaker's felt
CA2313867A1 (en) 1999-07-19 2001-01-19 Paul C. Fleri Polymer blends of trimethylene terephthalate and an elastomeric polyester

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB276392A (en) * 1926-04-07 1927-09-01 Respro Inc Leather substitute and process of making the same
FR1318984A (en) * 1962-03-31 1963-02-22 Us Rubber Co Sewing braid improvements for rugs
GB994914A (en) * 1962-10-11 1965-06-10 Dynamit Nobel Ag Composite plastics article
DE1807329A1 (en) * 1967-11-06 1969-06-19 Huyck Corp Forming medium for the forming section of a paper machine
DE1635487A1 (en) * 1967-10-25 1971-10-28 Degussa Composite webs
FR2097823A5 (en) * 1970-06-03 1972-03-03 Cpc International Inc
EP0010246A1 (en) * 1978-10-12 1980-04-30 BASF Aktiengesellschaft Laminates from filled polyolefins and a thermoplastic decorative layer; method of making same and application
GB2067133A (en) * 1980-01-12 1981-07-22 British Vita Co Ltd Improvements in or relating to non-woven fabrics

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB994917A (en) * 1962-10-26 1965-06-10 John Halliday And Sons Ltd Improvements in or relating to apparatus for detecting variations in the thickness of a moving filament, thread or the like
JPS5930819B2 (en) * 1976-04-08 1984-07-28 株式会社クラレ self-adhesive interlining

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB276392A (en) * 1926-04-07 1927-09-01 Respro Inc Leather substitute and process of making the same
FR1318984A (en) * 1962-03-31 1963-02-22 Us Rubber Co Sewing braid improvements for rugs
GB994914A (en) * 1962-10-11 1965-06-10 Dynamit Nobel Ag Composite plastics article
DE1635487A1 (en) * 1967-10-25 1971-10-28 Degussa Composite webs
DE1807329A1 (en) * 1967-11-06 1969-06-19 Huyck Corp Forming medium for the forming section of a paper machine
FR2097823A5 (en) * 1970-06-03 1972-03-03 Cpc International Inc
EP0010246A1 (en) * 1978-10-12 1980-04-30 BASF Aktiengesellschaft Laminates from filled polyolefins and a thermoplastic decorative layer; method of making same and application
GB2067133A (en) * 1980-01-12 1981-07-22 British Vita Co Ltd Improvements in or relating to non-woven fabrics

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0741204A3 (en) * 1995-05-04 1997-07-30 Huyck Licensco Inc Papermakers' press fabric
AU700146B2 (en) * 1995-05-04 1998-12-24 Huyck Licensco, Inc. Papermakers' press fabric with increased contact area
EP0943730A1 (en) * 1998-03-16 1999-09-22 Jwi Ltd Multilayer porous fabric
WO1999047748A1 (en) * 1998-03-16 1999-09-23 Jwi Ltd. Multilayer porous fabric
EP1013822A2 (en) * 1998-12-22 2000-06-28 Voith Fabrics Heidenheim GmbH & Co.KG Fabric for the wet end of a papermaking machine
EP1013822A3 (en) * 1998-12-22 2001-02-07 Voith Fabrics Heidenheim GmbH & Co.KG Fabric for the wet end of a papermaking machine

Also Published As

Publication number Publication date
FI851290L (en) 1985-03-29
AU569912B2 (en) 1988-02-25
WO1985000840A1 (en) 1985-02-28
FI86657B (en) 1992-06-15
EP0133836B1 (en) 1987-10-21
DE3466902D1 (en) 1987-11-26
AU3312384A (en) 1985-03-12
FI86657C (en) 1992-09-25
JPS6344877B2 (en) 1988-09-07
FI851290A0 (en) 1985-03-29
JPS60502012A (en) 1985-11-21
ATE30345T1 (en) 1987-11-15
CA1251124A (en) 1989-03-14

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