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EP1664414B1 - Machine for forming a pattern on non-woven cloth - Google Patents

Machine for forming a pattern on non-woven cloth Download PDF

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Publication number
EP1664414B1
EP1664414B1 EP04787373.2A EP04787373A EP1664414B1 EP 1664414 B1 EP1664414 B1 EP 1664414B1 EP 04787373 A EP04787373 A EP 04787373A EP 1664414 B1 EP1664414 B1 EP 1664414B1
Authority
EP
European Patent Office
Prior art keywords
machine according
sleeve
drum
nickel
coating
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 - Lifetime
Application number
EP04787373.2A
Other languages
German (de)
French (fr)
Other versions
EP1664414A2 (en
Inventor
Frédéric NOELLE
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.)
Andritz Perfojet SAS
Original Assignee
Andritz Perfojet SAS
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Filing date
Publication date
Application filed by Andritz Perfojet SAS filed Critical Andritz Perfojet SAS
Publication of EP1664414A2 publication Critical patent/EP1664414A2/en
Application granted granted Critical
Publication of EP1664414B1 publication Critical patent/EP1664414B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D04H18/04—Needling machines with water jets
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24595—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness and varying density
    • Y10T428/24603—Fiber containing component

Definitions

  • the present invention relates to pattern forming machines on a nonwoven.
  • a pattern forming machine on a nonwoven which comprises a rotating drum whose interior communicates with a vacuum source.
  • the rotating drum is provided with slits on the lateral surface. It is surrounded, in addition to a perforated coating of a perforated sleeve having a succession of patterns in relief and recessed.
  • the openwork sleeve is in a bronze cloth.
  • the invention remedies by a technical solution whose longevity is greater.
  • the subject of the invention is a pattern forming machine on a nonwoven which comprises a rotatably mounted drum whose interior communicates with a vacuum source, which is provided with slits on the lateral surface and which is surrounded by a openwork sleeve in a bronze, brass, stainless steel or copper fabric having a succession of raised and recessed patterns.
  • the sleeve is coated with a nickel or copper layer, obtained in particular by electrolysis, and preferably having a thickness of 50 ⁇ m to 500 ⁇ m.
  • Canvas means any fabric or knit having stitches.
  • the sleeve is bronze coated with nickel.
  • the sleeve has an opening ratio of 5 to 50%, the opening ratio being defined by the ratio of the area of the openings of the sleeve to the total surface of the sleeve.
  • the rotary drum is surrounded by a perforated coating and this perforated coating is itself surrounded by the perforated sleeve.
  • the perforated coating may have perforations with a diameter of 0.5 to 5 mm and the spacing between two consecutive perforations may be between 1.5 and 12 mm.
  • This coating may be steel, or bronze or plastic.
  • This process consists of embossing embossed and recessed patterns on a canvas of bronze, brass, stainless steel or copper, to be formed by welding two opposite edges the fabric into a blank sleeve, to mount the roughing on a rotating support cylinder and plunging it into an electrodeposition bath of nickel or copper until a nickel or copper layer has been electrodeposited and the perforated sleeve removed from the bath. While the blank is immersed in the bath, it is rotated on the support to obtain electrolytic deposition of nickel or copper as uniform as possible. The nickel could not be deposited directly on the bronze canvas because the subsequent shaping of the bronze cloth into a sleeve would break the thin layer of nickel or copper.
  • the embossing of the sleeve gives it non-perforating patterns such that the difference in level between the highest point and the lowest point of a pattern, counted according to the thickness of the wall, is between 0.5 mm and 5 mm, especially between 1 and 5 mm.
  • the sleeve of circular cross section has in particular a wall thickness of between 1.5 and 7 mm.
  • a production line making it possible to produce a nonwoven consists essentially of an assembly, designated by the general reference (1), making it possible to carry out by carding, by layering of continuous filaments or the like similar technique, a web may consist of continuous fibers or filaments or a mixture of fibers and continuous filaments of synthetic, artificial or natural material, in particular polyester, polypropylene, viscose, poly-lactic acid, cotton, polyvinyl alcohol, wood fibers, either of synthetic fibers or of natural fibers.
  • a porous conveyor belt (11) consisting for example of an endless fabric made of synthetic monofilament, in particular polyester, which has a porosity between 20 and 60%, that is to say a ratio between the solid surfaces and the empty surfaces of between 20 and 60%, preferably close to 30%.
  • This porous support (11) is associated, in a manner similar to the teachings of FR-A-2,730,246 , to a set of treatment by jets of water on the one hand, to ensure compression and wetting of the web (10) formed and, on the other hand, to subject this sheet to the action of ramps of water jets.
  • Such an assembly essentially comprises a rotary cylindrical drum designated by the general reference (20) bearing against the surface of the conveyor belt (11).
  • a first water jet ramp (21) is disposed below the support (11) and allows the prewetting of the web (10). This ramp is disposed at a distance between 70 and 100 mm of the porous support (11) and forms a water curtain for wetting the compressed web and resulting in a slight first intermingling of the web.
  • the drum (20) consists of a conventional rotating cylinder with honeycomb structure (not shown in the accompanying figures), which is covered with a metal sheet (22) having micro-perforations, distributed randomly on its surface or by a woven surface.
  • This rotating cylinder surrounds a second fixed, hollow coaxial cylindrical drum (23) connected to a source of partial vacuum to form a suction box, the suction being exerted through slots (26) located opposite the zone of action of water jets.
  • the sheet (10) After prewetting by means of the ramp (21), and as is apparent from the figures, the sheet (10) is subjected to the action of pressurized water jets (27) coming from two conventional ramps (24, 25) .
  • These ramps (21, 24, 25) are formed of contiguous injectors arranged at predetermined distances from each other.
  • the drum Opposite each ramp (21, 24, 25), the drum comprises a slot (26) which extends over the entire length of a generatrix, whose width is generally between 5 mm and 30 mm and from which is recovered water jets (27).
  • This assembly (28) is constituted by a suction rotary drum (29), also constituted by a cylindrical honeycomb structure, not shown in the figure, and which supports a perforated cylindrical coating (29).
  • the perforations of this coating (29) may have a diameter of 3 mm, the spacing between two consecutive holes being 4 mm and the orifices being shifted from one row to the next.
  • the perforated coating (29) is covered with a perforated sleeve (30), in the form of a sleeve, having a succession of raised and recessed areas.
  • This perforated sleeve (30) consists of a perforated wire made of bronze, having an opening ratio of between 10% and 50%, said fabric having been embossed, to comprise a succession of non-perforating relief and hollow zones. . These raised and recessed areas may have a regular structure, for example a chevron shape or a configuration forming irregular patterns.
  • the fabric (30) is coated with a layer of nickel 50 to 500 microns thick obtained by electrodeposition as follows: the perforated coating (cylinder) (29) coated with its perforated sleeve (30) is mounted on a rotatable support. The sleeve (30) is partially immersed in an electrolyte contained in a galvanic deposition tank.
  • a nickel electrode, immersed in the electrolyte, is connected to the cathode of a DC generator.
  • the sleeve (30) is connected to the anode of the same current generator via a rotary manifold which ensures the passage of the current during the rotation of the sleeve (30).
  • the nickel of the cathode migrates into the electrolyte and settles on the sleeve connected to the anode.
  • a motor rotates the sleeve (30) mounted on its support to obtain a thin and uniform deposit over the entire surface of the sleeve (30).
  • the pre-bonded web is restructured by action of one or more series of jets, from conventional hydraulic injectors two in this case. Under the action of these jets, the sheet matches the configuration of the raised and recessed areas of the perforated sleeve (30).
  • the treated web (31) is fed to a conveyor (32) where the water is removed, for example by means of a suction box disposed below the conveyor (32), and then dried by passage on a through air cylinder (33) and having a temperature of the order of 150 ° C before being received in the form of a winding (34).

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Nonwoven Fabrics (AREA)
  • Gloves (AREA)
  • Woven Fabrics (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Description

La présente invention se rapporte aux machines de formation de motifs sur un non-tissé.The present invention relates to pattern forming machines on a nonwoven.

Au FR-A-2 834 725 , on décrit une machine ayant un tambour entouré d'un manchon en nickel près d'une gainethe FR-A-2,834,725 a machine having a drum surrounded by a nickel sleeve near a sheath is described

Au WO 01/25522 A1 , on décrit une machine de formation de motifs sur un non-tissé qui comprend un tambour rotatif dont l'intérieur communique avec une source de vide. Le tambour rotatif est muni de fentes sur la surface latérale. Il est entouré, outre d'un revêtement perforé d'un manchon ajouré ayant une succession de motifs en relief et en creux. Le manchon ajouré est en une toile de bronze. En envoyant des jets d'eau sur un non-tissé passant sur le manchon, on y crée des motifs.the WO 01/25522 A1 there is described a pattern forming machine on a nonwoven which comprises a rotating drum whose interior communicates with a vacuum source. The rotating drum is provided with slits on the lateral surface. It is surrounded, in addition to a perforated coating of a perforated sleeve having a succession of patterns in relief and recessed. The openwork sleeve is in a bronze cloth. By sending jets of water on a nonwoven passing over the sleeve, patterns are created.

Il s'est avéré que la toile de bronze se déforme, se détend et se brise trop rapidement, le bronze devenant de plus en plus mou. Il faut alors remplacer la toile trop souvent, ce qui est un inconvénient.It turned out that the bronze cloth deforms, relaxes and breaks too quickly, the bronze becoming more and more soft. It is then necessary to replace the canvas too often, which is a disadvantage.

L'invention y remédie par une solution technique dont la longévité est plus grande.The invention remedies by a technical solution whose longevity is greater.

L'invention a pour objet une machine de formation de motifs sur un non-tissé qui comprend un tambour monté tournant dont l'intérieur communique avec une source de vide, qui est muni de fentes sur la surface latérale et qui est entouré d'un manchon ajouré en une toile en bronze, en laiton, en acier inoxydable ou en cuivre ayant une succession de motifs en relief et en creux. Le manchon est revêtu d'une couche de nickel ou de cuivre, obtenue notamment par électrolyse, et ayant, de préférence une épaisseur de 50 µm à 500 µm.The subject of the invention is a pattern forming machine on a nonwoven which comprises a rotatably mounted drum whose interior communicates with a vacuum source, which is provided with slits on the lateral surface and which is surrounded by a openwork sleeve in a bronze, brass, stainless steel or copper fabric having a succession of raised and recessed patterns. The sleeve is coated with a nickel or copper layer, obtained in particular by electrolysis, and preferably having a thickness of 50 μm to 500 μm.

On a maintenant compris que la toile utilisée jusqu'ici était trop souple et que les fils de la toile n'étaient pas suffisamment en contact les uns avec les autres en sorte que les fibres du non-tissé s'accrochaient dans les espaces entre les fils de la toile avec déformation, détente et vrillage de celle-ci. En revêtant le manchon d'une couche, de préférence de nickel, on supprime ces espaces et on supprime les points d'accrochage des fibres puisque maintenant les fils de la toile sont liés entre eux à leurs intersections par la couche de nickel ou cuivre, ce qui garantit la longévité de la toile qui n'est plus soumise maintenant aux tractions provoquées par l'accrochage des fibres. La rigidité du manchon est améliorée. La perméabilité du manchon est toutefois conservée.It has now been understood that the fabric used hitherto was too soft and that the yarns of the fabric were not sufficiently in contact with each other so that the fibers of the nonwoven clung to the spaces between them. son of the canvas with deformation, relaxation and twist of it. By coating the sleeve with a layer, preferably nickel, these spaces are eliminated and the points of attachment of the fibers are eliminated since now the wires of the fabric are connected to each other at their intersections by the layer of nickel or copper, which guarantees the longevity of the canvas which is no longer subjected to pull-ups caused by the clinging of the fibers. The rigidity of the sleeve is improved. The permeability of the sleeve is however preserved.

Par toile, on entend tout tissu ou tricot ayant des mailles.Canvas means any fabric or knit having stitches.

De préférence, le manchon est en bronze revêtu de nickel.Preferably, the sleeve is bronze coated with nickel.

De préférence, le manchon a un taux d'ouverture de 5 à 50 %, le taux d'ouverture étant défini par le rapport de la surface des ajours du manchon à la surface totale du manchon.Preferably, the sleeve has an opening ratio of 5 to 50%, the opening ratio being defined by the ratio of the area of the openings of the sleeve to the total surface of the sleeve.

De préférence, le tambour rotatif est entouré d'un revêtement perforé et ce revêtement perforé est lui-même entouré du manchon ajouré. Le revêtement perforé peut avoir des perforations d'un diamètre de 0,5 à 5 mm et l'entraxe entre deux perforations consécutives peut être compris entre 1,5 et 12 mm. Ce revêtement peut être en acier, ou en bronze ou en matière plastique.Preferably, the rotary drum is surrounded by a perforated coating and this perforated coating is itself surrounded by the perforated sleeve. The perforated coating may have perforations with a diameter of 0.5 to 5 mm and the spacing between two consecutive perforations may be between 1.5 and 12 mm. This coating may be steel, or bronze or plastic.

Il est également décrit un procédé de fabrication du manchon ajouré. Ce procédé consiste à ménager par embossage des motifs en relief et en creux sur une toile de bronze, de laiton, d'acier inoxydable ou de cuivre, à conformer par soudage de deux bords opposés la toile en une ébauche de manchon, à monter l'ébauche sur un cylindre support tournant et à la plonger dans un bain de dépôt électrolytique de nickel ou de cuivre jusqu'à électrodépôt d'une couche de nickel ou de cuivre et à retirer du bain le manchon ajouré. Pendant que l'ébauche est plongée dans le bain, on la fait tourner sur le support pour obtenir un dépôt électrolytique de nickel ou de cuivre aussi uniforme que possible. On ne pourrait pas déposer le nickel directement sur la toile de bronze parce que la conformation ensuite de la toile de bronze en un manchon romprait la mince couche de nickel ou de cuivre.There is also described a method of manufacturing the perforated sleeve. This process consists of embossing embossed and recessed patterns on a canvas of bronze, brass, stainless steel or copper, to be formed by welding two opposite edges the fabric into a blank sleeve, to mount the roughing on a rotating support cylinder and plunging it into an electrodeposition bath of nickel or copper until a nickel or copper layer has been electrodeposited and the perforated sleeve removed from the bath. While the blank is immersed in the bath, it is rotated on the support to obtain electrolytic deposition of nickel or copper as uniform as possible. The nickel could not be deposited directly on the bronze canvas because the subsequent shaping of the bronze cloth into a sleeve would break the thin layer of nickel or copper.

Il est décrit un manchon ajouré en une toile en bronze, en laiton, en acier inoxydable ou en cuivre formant des motifs non perforants en relief et en creux, caractérisé en ce que la toile 30 est revêtue d'une couche de nickel ou de cuivre.It discloses a perforated sleeve made of a bronze, brass, stainless steel or copper fabric forming non-perforating patterns in relief and recessed, characterized in that the fabric 30 is coated with a layer of nickel or copper .

L'embossage du manchon lui donne des motifs non perforants tels que la différence de niveau entre le point le plus haut et le point le plus bas d'un motif, décompté suivant l'épaisseur de la paroi, est comprise entre 0,5 mm et 5 mm, notamment entre 1 et 5 mm. Le manchon de section droite circulaire a notamment une épaisseur de paroi comprise entre 1,5 et 7 mm.The embossing of the sleeve gives it non-perforating patterns such that the difference in level between the highest point and the lowest point of a pattern, counted according to the thickness of the wall, is between 0.5 mm and 5 mm, especially between 1 and 5 mm. The sleeve of circular cross section has in particular a wall thickness of between 1.5 and 7 mm.

Au EP-0 215 684 , on décrit une machine de formation de non-tissé perforé.the EP-0 215 684 a perforated nonwoven forming machine is described.

Au GB 547 843 A , on décrit une toile à des fins de filtration.the GB 547 843 A a web is described for filtration purposes.

Au dessins annexés donnés uniquement à titre d'exemple :

  • la figure 1 illustre une ligne de production d'un non-tissé incorporant une machine suivant l'invention,
  • la figure 2 est une vue partielle en coupe illustrant la machine suivant l'invention
In the accompanying drawings given solely by way of example:
  • the figure 1 illustrates a production line of a nonwoven incorporating a machine according to the invention,
  • the figure 2 is a partial sectional view illustrating the machine according to the invention

En se reportant aux figures annexées 1 et 2 une ligne de production permettant de réaliser un non-tissé se compose essentiellement d'un ensemble, désigné par la référence générale (1), permettant de réaliser par cardage, par nappage de filaments continus ou autre technique similaire, une nappe pouvant être constituée de fibres ou de filaments continus ou d'un mélange de fibres et de filaments continus de matière synthétique, artificielle ou naturelle, notamment polyester, polypropylène, viscose, acide poly-lactique, coton, alcool polyvinylique, fibres de bois, soit de fibres synthétiques, soit de fibres naturelles.Referring to the appended figures 1 and 2, a production line making it possible to produce a nonwoven consists essentially of an assembly, designated by the general reference (1), making it possible to carry out by carding, by layering of continuous filaments or the like similar technique, a web may consist of continuous fibers or filaments or a mixture of fibers and continuous filaments of synthetic, artificial or natural material, in particular polyester, polypropylene, viscose, poly-lactic acid, cotton, polyvinyl alcohol, wood fibers, either of synthetic fibers or of natural fibers.

A la sortie de la zone de conformation de la nappe (10), cette dernière est transférée sur un tapis transporteur poreux (11) constitué par exemple par une toile sans fin réalisée en monofilament synthétique, notamment en polyester, qui présente une porosité comprise entre 20 et 60 %, c'est-à-dire un rapport entre les surfaces pleines et les surfaces vides compris entre 20 et 60 %, de préférence voisin de 30 %.At the exit of the conformation zone of the ply (10), the latter is transferred onto a porous conveyor belt (11) consisting for example of an endless fabric made of synthetic monofilament, in particular polyester, which has a porosity between 20 and 60%, that is to say a ratio between the solid surfaces and the empty surfaces of between 20 and 60%, preferably close to 30%.

Ce support poreux (11) est associé, d'une manière similaire aux enseignements du FR-A-2 730 246 , à un ensemble de traitement par jets d'eau permettant d'une part, d'assurer la compression et le mouillage de la nappe (10) formée et, d'autre part, de soumettre cette nappe à l'action de rampes de jets d'eau. Un tel ensemble comprend essentiellement un tambour cylindrique rotatif désigné par la référence générale (20) en appui contre la surface du tapis transporteur (11).This porous support (11) is associated, in a manner similar to the teachings of FR-A-2,730,246 , to a set of treatment by jets of water on the one hand, to ensure compression and wetting of the web (10) formed and, on the other hand, to subject this sheet to the action of ramps of water jets. Such an assembly essentially comprises a rotary cylindrical drum designated by the general reference (20) bearing against the surface of the conveyor belt (11).

Une première rampe de jets d'eau (21) est disposée en dessous du support (11) et permet de réaliser le prémouillage de la nappe (10). Cette rampe est disposée à une distance comprise entre 70 et 100 mm du support poreux (11) et forme un rideau d'eau permettant de mouiller la nappe comprimée et entraînant un premier entremêlement léger de la nappe.A first water jet ramp (21) is disposed below the support (11) and allows the prewetting of the web (10). This ramp is disposed at a distance between 70 and 100 mm of the porous support (11) and forms a water curtain for wetting the compressed web and resulting in a slight first intermingling of the web.

Le tambour (20) se compose d'un cylindre rotatif conventionnel à structure en nid d'abeille (non représenté aux figures annexées), qui est recouvert d'une feuille métallique (22) comportant des micro-perforations, réparties de manière aléatoire à sa surface ou par une surface tissée. Ce cylindre rotatif entoure un second tambour cylindrique coaxial (23) fixe, creux, relié à une source de vide partiel pour former une caisse aspirante, l'aspiration s'exerçant au travers de fentes (26) situées en regard de la zone d'action des jets d'eau.The drum (20) consists of a conventional rotating cylinder with honeycomb structure (not shown in the accompanying figures), which is covered with a metal sheet (22) having micro-perforations, distributed randomly on its surface or by a woven surface. This rotating cylinder surrounds a second fixed, hollow coaxial cylindrical drum (23) connected to a source of partial vacuum to form a suction box, the suction being exerted through slots (26) located opposite the zone of action of water jets.

Après prémouillage au moyen de la rampe (21), et ainsi que cela ressort des figures, la nappe (10) est soumise à l'action de jets d'eau sous pression (27) provenant de deux rampes conventionnelles (24, 25).After prewetting by means of the ramp (21), and as is apparent from the figures, the sheet (10) is subjected to the action of pressurized water jets (27) coming from two conventional ramps (24, 25) .

Eventuellement, il pourrait être envisagé de n'avoir qu'une seule rampe (24) ou plus de deux rampes successives associées au tambour (20).Optionally, it could be envisaged to have only one ramp (24) or more than two successive ramps associated with the drum (20).

Ces rampes (21, 24, 25) sont formées d'injecteurs contigus disposés à des distances prédéterminées les uns des autres.These ramps (21, 24, 25) are formed of contiguous injectors arranged at predetermined distances from each other.

En regard de chaque rampe (21, 24, 25), le tambour comporte une fente (26) qui s'étend sur toute la longueur d'une génératrice, dont la largeur est en général comprise entre 5 mm et 30 mm et au travers de laquelle est récupérée l'eau des jets (27).Opposite each ramp (21, 24, 25), the drum comprises a slot (26) which extends over the entire length of a generatrix, whose width is generally between 5 mm and 30 mm and from which is recovered water jets (27).

Après liage sur l'ensemble (20), la nappe est soumise à l'action d'un second ensemble (28) dont la structure générale ressort de la figure 2. Cet ensemble (28) est constitué par un tambour rotatif aspirant (29), constitué également par une structure cylindrique en nid d'abeille, non représentée à la figure, et qui supporte un revêtement cylindrique perforé (29). A titre indicatif, les perforations de ce revêtement (29) peuvent avoir un diamètre de 3 mm, l'entraxe entre deux orifices consécutifs étant de 4 mm et les orifices étant décalés d'une rangée à la suivante.After binding to the assembly (20), the web is subjected to the action of a second assembly (28) whose general structure emerges from the figure 2 . This assembly (28) is constituted by a suction rotary drum (29), also constituted by a cylindrical honeycomb structure, not shown in the figure, and which supports a perforated cylindrical coating (29). As an indication, the perforations of this coating (29) may have a diameter of 3 mm, the spacing between two consecutive holes being 4 mm and the orifices being shifted from one row to the next.

Le revêtement perforé (29) est recouvert d'un manchon ajouré (30), en forme de manchon, présentant une succession de zones en relief et en creux.The perforated coating (29) is covered with a perforated sleeve (30), in the form of a sleeve, having a succession of raised and recessed areas.

Ce manchon ajouré (30) est constituée par une toile ajourée en fils de bronze, comportant un taux d'ouverture compris entre 10 % et 50 %, ladite toile ayant été embossée , pour comporter une succession de zones en relief et en creux non perforantes. Ces zones en relief et en creux peuvent avoir une structure régulière, par exemple une forme de chevrons ou une configuration formant des motifs irréguliers. La toile (30) est revêtue d'une couche de nickel de 50 à 500 microns d'épaisseur obtenue par électrodéposition de la manière suivante:
le revêtement (cylindre) perforé (29) revêtu de son manchon ajouré (30) est monté sur un support rotatif. Le manchon (30) est en partie immergé dans un électrolyte contenu dans une cuve de dépôt galvanique. Une électrode de nickel, immergée dans l'électrolyte, est reliée à la cathode d'un générateur de courant continu. Le manchon (30) est lui relié à l'anode du même générateur de courant via un collecteur rotatif qui assure le passage du courant lors de la rotation du manchon (30). Le nickel de la cathode migre dans l'électrolyte et se dépose sur le manchon relié à l'anode. Un moteur assure l'entraînement en rotation du manchon (30) monté sur son support pour obtenir un dépôt fin et uniforme sur toute la surface du manchon (30).This perforated sleeve (30) consists of a perforated wire made of bronze, having an opening ratio of between 10% and 50%, said fabric having been embossed, to comprise a succession of non-perforating relief and hollow zones. . These raised and recessed areas may have a regular structure, for example a chevron shape or a configuration forming irregular patterns. The fabric (30) is coated with a layer of nickel 50 to 500 microns thick obtained by electrodeposition as follows:
the perforated coating (cylinder) (29) coated with its perforated sleeve (30) is mounted on a rotatable support. The sleeve (30) is partially immersed in an electrolyte contained in a galvanic deposition tank. A nickel electrode, immersed in the electrolyte, is connected to the cathode of a DC generator. The sleeve (30) is connected to the anode of the same current generator via a rotary manifold which ensures the passage of the current during the rotation of the sleeve (30). The nickel of the cathode migrates into the electrolyte and settles on the sleeve connected to the anode. A motor rotates the sleeve (30) mounted on its support to obtain a thin and uniform deposit over the entire surface of the sleeve (30).

Ainsi que cela ressort de la figure 2, lors de son passage dans cette zone de traitement (28), la nappe pré-liée est restructurée par action d'une ou plusieurs séries de jets, provenant d'injecteurs hydrauliques conventionnels au nombre de deux dans le cas présent. Sous l'action de ces jets, la nappe épouse la configuration des zones en relief et en creux du manchon ajouré (30). Après traitement, la nappe traitée (31) est amenée sur un convoyeur (32) où l'eau est éliminée , par exemple à l'aide d'une caisse aspirante disposée en dessous du convoyeur (32), puis elle est séchée par passage sur un cylindre à air traversant (33) et ayant une température de l'ordre de 150° C avant d'être réceptionnée sous la forme d'un enroulement (34).As is apparent from the figure 2 during its passage in this treatment zone (28), the pre-bonded web is restructured by action of one or more series of jets, from conventional hydraulic injectors two in this case. Under the action of these jets, the sheet matches the configuration of the raised and recessed areas of the perforated sleeve (30). After treatment, the treated web (31) is fed to a conveyor (32) where the water is removed, for example by means of a suction box disposed below the conveyor (32), and then dried by passage on a through air cylinder (33) and having a temperature of the order of 150 ° C before being received in the form of a winding (34).

Claims (9)

  1. Machine for forming patterns on a nonwoven that includes a drum (29) mounted so as to rotate, the interior of which communicates with a vacuum source, which drum is provided with slits on the lateral surface and is surrounded by an apertured sleeve (30) made of a bronze, brass or stainless steel cloth forming non-perforating patterns in the form of bumps and hollows, characterized in that the cloth is coated with a coating of nickel.
  2. Machine according to Claim 1, characterized in that its nickel coating is a coating obtained by electroplating.
  3. Machine according to Claim 1 or 2, characterized in that the thickness of the nickel coating is between 50 microns and 500 microns.
  4. Machine according to Claim 1, 2 or 3, characterized in that the sleeve has an openness of 5 to 50%.
  5. Machine according to one of Claims 1 to 4, characterized in that the difference in level between the highest point and the lowest point of a pattern, measured along the thickness of the wall, is between 0.5 mm and 5 mm.
  6. Machine according to Claim 5, characterized in that the difference is between 1 and 5 mm.
  7. Machine according to one of Claims 1 to 5, characterized in that it has a wall thickness of between 1.5 and 7 mm.
  8. Machine according to one of Claims 1 to 7, characterized in that the drum (29) is surrounded by a perforated covering, which is itself surrounded by the apertured sleeve.
  9. Machine according to Claim 8, characterized in that the perforated covering has perforations with a diameter of 1 to 5 mm and the inter axis distance between two consecutive perforations is between 2 and 6 mm.
EP04787373.2A 2003-09-18 2004-09-14 Machine for forming a pattern on non-woven cloth Expired - Lifetime EP1664414B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0310974A FR2860009B1 (en) 2003-09-18 2003-09-18 PATTERN-FORMING MACHINE ON A NON-WOVEN AND METHOD FOR MANUFACTURING A SLEEVE FOR THE MACHINE
PCT/FR2004/002327 WO2005028728A2 (en) 2003-09-18 2004-09-14 Machine for forming a pattern on non-woven cloth and method for producing an apron therefor

Publications (2)

Publication Number Publication Date
EP1664414A2 EP1664414A2 (en) 2006-06-07
EP1664414B1 true EP1664414B1 (en) 2019-02-27

Family

ID=34224333

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04787373.2A Expired - Lifetime EP1664414B1 (en) 2003-09-18 2004-09-14 Machine for forming a pattern on non-woven cloth

Country Status (6)

Country Link
US (1) US20070180671A1 (en)
EP (1) EP1664414B1 (en)
BR (1) BRPI0414526A (en)
FR (1) FR2860009B1 (en)
IL (1) IL174348A (en)
WO (1) WO2005028728A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102061571B (en) * 2010-12-17 2012-09-26 多氟多化工股份有限公司 Electrostatic spinning and spunlacing consolidation composite membrane-making device
CN115434074B (en) * 2022-09-15 2023-09-19 东纶科技实业有限公司 Copper mesh 3D jacquard mesh sleeve for hydroentanglement and preparation method and application thereof

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB547843A (en) * 1941-03-06 1942-09-14 Glenfield & Kennedy Ltd Ultra-fine wire-cloth screen for straining purposes, and method of producing the same
US2862251A (en) * 1955-04-12 1958-12-02 Chicopee Mfg Corp Method of and apparatus for producing nonwoven product
US4017394A (en) * 1975-05-12 1977-04-12 Hensley Roy A Water screen
JPH0663165B2 (en) * 1985-11-20 1994-08-17 ユニ・チヤ−ム株式会社 Nonwoven fabric manufacturing method and apparatus
ES2002406A6 (en) * 1985-09-20 1988-08-01 Uni Charm Corp Apparatus and process for producing apertured non-woven fabric.
DE59707399D1 (en) * 1996-11-11 2002-07-11 Fleissner Maschf Gmbh Co Device for hydrodynamic needling of nonwovens, tissue or the like
FR2799214B1 (en) * 1999-10-05 2001-11-16 Icbt Perfojet Sa PROCESS FOR THE PRODUCTION OF NONWOVEN TABLECLOTHS WHICH COHESION IS OBTAINED BY THE ACTION OF FLUID JETS
SE516427C2 (en) * 2000-05-08 2002-01-15 Sca Hygiene Prod Ab Method and apparatus for producing nonwoven materials and using a net in the process
JP3703711B2 (en) * 2000-11-27 2005-10-05 ユニ・チャーム株式会社 Non-woven fabric manufacturing method and manufacturing apparatus
FR2834725B1 (en) * 2002-01-15 2004-06-11 Rieter Perfojet MACHINE FOR PRODUCING A PATTERNED TEXTILE PRODUCT AND NON-WOVEN PRODUCT THUS OBTAINED
DE10322052A1 (en) * 2003-05-15 2004-12-02 Fleissner Gmbh Water-permeable drum for the hydrodynamic needling of textile webs and method for producing the drum

Also Published As

Publication number Publication date
FR2860009A1 (en) 2005-03-25
WO2005028728A2 (en) 2005-03-31
EP1664414A2 (en) 2006-06-07
US20070180671A1 (en) 2007-08-09
BRPI0414526A (en) 2006-11-07
WO2005028728A3 (en) 2005-07-28
FR2860009B1 (en) 2008-10-03
IL174348A0 (en) 2006-08-01
IL174348A (en) 2010-12-30

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