EP3908687B1 - Einheit und verfahren zur herstellung von vliesstoffen - Google Patents

Einheit und verfahren zur herstellung von vliesstoffen Download PDF

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Publication number
EP3908687B1
EP3908687B1 EP19828809.4A EP19828809A EP3908687B1 EP 3908687 B1 EP3908687 B1 EP 3908687B1 EP 19828809 A EP19828809 A EP 19828809A EP 3908687 B1 EP3908687 B1 EP 3908687B1
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EP
European Patent Office
Prior art keywords
speed
ratio
conveyor belt
cylinder
drum
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EP19828809.4A
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English (en)
French (fr)
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EP3908687A1 (de
Inventor
Frédéric NOELLE
Laurent Schmit
Christophe MUFFAT-JEANDET
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Andritz Perfojet SAS
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Andritz Perfojet SAS
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Priority claimed from FR1900150A external-priority patent/FR3091541B1/fr
Application filed by Andritz Perfojet SAS filed Critical Andritz Perfojet SAS
Publication of EP3908687A1 publication Critical patent/EP3908687A1/de
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/04—Carding machines with worker and stripper or like rollers operating in association with a main cylinder
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/36—Driving or speed control arrangements
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers
    • 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/736—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged characterised by the apparatus for arranging fibres

Definitions

  • the present invention relates to an installation and to a process for the production of nonwovens by the dry process.
  • Installations for the production of nonwovens by the dry process generally comprise a section for forming a veil or a web, which comprises one or two cards, followed by a section for consolidation by water jets, generally over several rotating cylinders and successive conveyors, then a high vacuum water extraction section, most often, then a drying section and finally a winding.
  • EP 1318217 A1 describes a card comprising an accumulator cylinder.
  • an installation has been found which makes it possible to produce nonwovens by the dry process with a surface weight even between 40 and 80 g/m 2 by direct carding at high speeds and with resistance ratios in the machine direction/cross direction of less than 2.5/1, even less than 2/1, even less than 1.5/l and very close to 1.0 well suited to qualitative markets, such as professional wipes or cosmetic masks, where nonwovens are desired that are as light as possible, provided that the speeds of rotation of the elements of which the installation is made up are adjusted as appropriate according to the invention.
  • Productivity is increased by 40 to 50% compared to an installation with a crosslapper and stretcher of the same width in the production of light nonwovens.
  • the invention only requires a card and no other additional machines such as lapper and stretcher, requires much less investment, uses far fewer moving mechanical elements (rollers, belts, for example) and consumes less energy per kilo of product.
  • the installation for the production of nonwovens by dry process comprises a carding drum driven in rotation in a first direction of rotation and at a first circumferential speed of rotation by first drive means, giving a veil of fibers. It is characterized in that it comprises, immediately downstream of the drum in the direction of passage of the fibers of the installation, a transfer cylinder driven in rotation in a second direction of rotation, contrary to the first direction of rotation, and a second circumferential speed of rotation by second rotation drive means, the second speed being greater than the first speed, the transfer cylinder having at the periphery a lining comprising a plurality of teeth inclined with respect to the radius of the cylinder and oriented in the second direction of rotation, and immediately downstream of the transfer cylinder, a system comprising, from upstream to downstream in immediate succession, at least one doffer, at least one condenser, at least one stripper, a first endless conveyor belt , a suction drum and a second endless conveyor belt, the suction drum being adjacent to the upper strand of the
  • immediately downstream it is meant in this specification either that which is immediately downstream is adjacent to that which is immediately upstream, or at least that there are no other rollers or drums between them .
  • the ratio of the second speed to the first speed is greater than or equal to 1.6, and even better greater than or equal to 1.7.
  • the rotational speed ratios of the various elements of the installation are as follows: Table 1 cylinder 2 / drum 1 1.60 to 1.80 doffers 3 and 4 / cylinder 2 0.10 to 0.20 condensers 5 and 6 / doffers 3 and 4 0.35 to 0.55 detachers 7 and 8 / condensers 5 and 6 1.50 to 1.75 conveyor 9 / detachers 8 0.95 to 1.10 drum 10 / conveyor 9 0.70 to 0.90 conveyor 11 / drum 10 0.70 to 0.90 cylinder 12 / conveyor 11 0.75 to 1.05
  • the invention also relates to a process for the production of nonwovens, in which the installation according to the invention is operated according to the speed ratios according to the invention.
  • nonwoven product based on artificial and/or synthetic fibres, such as viscose, lyocell, polyester or polypropylene, with a mass per square meter of between 40 and 80 g/m 2 and whose fibers have a count of between 1.3 and 2.2 dtex and have a length of between 30 and 50 mm, the ratio of the machine direction/cross direction tensile strength ranges from 1.0 to 1.5 and the elongation in machine direction is between 35 and 70% and preferably between 40 and 60% and the elongation in the transverse direction is between 70 and 130% and preferably between 90 and 125%.
  • artificial and/or synthetic fibres such as viscose, lyocell, polyester or polypropylene
  • the invention also relates to a process for producing the nonwoven product above, in which the installation according to the invention is operated by giving its various elements the speeds of rotation making it possible to obtain the desired ratios.
  • the diameter of the transfer cylinder is preferably smaller than that of the card drum.
  • the ratio is, for example, between 0.40 and 0.50.
  • the card drum has a diameter between 900 and 1500 mm.
  • the angle of inclination of the teeth with the radius can be between 70° and 80°.
  • the radial height of the teeth is advantageously between 0.7 and 1.5 mm.
  • the teeth are evenly distributed over the entire periphery of the transfer cylinder, the interval between two teeth neighbors being between 1.3 and 2.3 mm.
  • the width of the teeth at their base is between 0.70 and 1.2 mm.
  • the distance between the card drum and the transfer cylinder is less than 1 mm, preferably being between 0.4 and 0.6 mm.
  • the lateral flanks of the teeth can be straight or curved.
  • the teeth are preferably sharp.
  • the transfer cylinder and its lining can be made of metal.
  • the carding drum is made in the same way as the transfer cylinder by having teeth inclined at an angle identical to the inclination of the teeth of the transfer cylinder in the opposite direction.
  • the teeth are inclined in the direction of rotation.
  • the anisotropy of the nonwoven is further reduced by a suction cylinder adjacent to the upper strand of the second conveyor belt.
  • the installation generally includes, at the end, a consolidation device on the suction cylinder and/or downstream of it.
  • the consolidation device can be by water jets or by hot air jets or by calender or by needling or be carried out in a hot air or other consolidation oven.
  • Installing the figure 1 comprises at least one carding drum 1 driven by its own motor, a transfer cylinder 2 driven in rotation by its own motor, which completely unloads the drum 1 of the fibers on its surface. Following this transfer cylinder 2, one or two doffers 3 and 4 driven by their own motor take the fibers from the surface of the transfer cylinder 2. Then there are the condensers 5 and 6 and the detachers 7 and 8, driven by their own motor, then a transfer onto a conveyor belt 9. The installation then comprises a condensation and transfer suction drum 10 disposed between the conveyor 9 and an inlet conveyor belt 11 in a consolidation installation by water jets.
  • the water jet consolidation installation conforms to that described in the patent European 1,554,421 .
  • first cylinder 12 for consolidation by water jets tangential to the mat 11 and comprising a pre-wetting injector 13, arranged substantially at the point of transfer between the mat 11 and the cylinder 12 and consolidation injectors 14 and 15.
  • This first consolidation cylinder 12 is optionally followed by other consolidation cylinders by water jets, to give better resistance to the nonwovens thus produced.
  • the various rotating elements of the installation are driven by their own motor, which are shown schematically in figure 1 by the arrows which indicate the directions of rotation for the two of them furthest downstream in the direction of division of the web of card.
  • the distance between the drum 11 and the belt 9 and between the belt 11 and the cylinder 12 is between 2 and 15 mm.
  • the transfer cylinder 2 is equipped on its periphery with a metallic lining G.
  • This trim G is composed of a plurality of teeth 16.
  • the double arrow L represents the direction parallel to the longitudinal axis of the transfer cylinder 2, that is to say the direction orthogonal to the plane of the figure 1 .
  • There picture 3 is a cross-sectional view of the lining of transfer cylinder 2 along a plane transverse to its longitudinal axis.
  • the teeth 16 of the lining G are aligned in the form of adjacent rows parallel to the longitudinal axis of the transfer cylinder 2.
  • Each tooth 16 of the lining G is inclined relative to the radius of the transfer cylinder 2 at an angle A and is oriented in the direction of rotation of the cylinder 2 (circumferential speed).
  • the circumferential distance e between two points of neighboring teeth is equal to 1.80 mm.
  • the axial length H of a tooth is equal to 1.20 mm.
  • a web of about 60 g/m 2 composed of 50% polyester fibers of 1.7 dtex and 38 mm in length and 50% viscose of 1.7 dtex and 40 mm in length is produced at a speed approximately 78 m/min at cylinder 12.
  • the card is a conventional card, without drum 2, and adjusted according to the optimum production settings in the production of nonwovens.
  • the speeds of each element are described in the table below.
  • the binding cylinder 12 is covered with a microperforated sleeve as described in the patent French 2,734,285 .
  • the tablecloth is first wetted by an injector 13 projecting jets of water 140 microns in diameter with a pressure of 10 bar, the jets being spaced from each other by 0.9 mm in two rows.
  • the sheet thus wetted and slightly consolidated is then subjected to the action of two successive hydraulic injectors 14 and 15 projecting jets of water 120 microns in diameter at increasing pressures of 70 bar and 90 bar, the jets being spaced apart. others of 1.4 mm in two rows.
  • the binding cylinder 12 is followed by another binding cylinder, not shown, and covered with the same microperforated sleeve as the cylinder 12 and equipped with an injector projecting, on the face opposite the injectors 14 and 15, jets of water of 120 microns in diameter at a pressure of 100 bar.
  • the nonwoven thus obtained is then transferred to a suction belt connected to a vacuum generator, then dried at a temperature of 140° C. in a through-air oven.
  • a nonwoven weighing about 60 g/m 2 is obtained.
  • the fleece has a uniform appearance.
  • Example 1 The conditions of Example 1 are repeated with an installation according to the invention, which now comprises a cylinder 2, but operating the installation at the speeds indicated in the table below.
  • a nonwoven weighing about 60 g/m 2 is obtained.
  • the fleece has a uniform appearance, but the MD/CD ratio is poor.
  • Example 2 The conditions of Example 2 are repeated. For this test, the speeds of the various elements are modified according to the table below.
  • a nonwoven weighing about 60 g/m 2 is obtained.
  • the nonwoven has a uniform appearance and a satisfactory MD/CD ratio.
  • Example 2 The conditions of Example 2 are repeated. For this test, the speeds of the various elements are modified according to the table below.
  • a nonwoven weighing approximately 60 g/m 2 is obtained.
  • the nonwoven has a uniform appearance and an even better MD/CD ratio than in example 3.
  • Example 2 The conditions of Example 2 are repeated. For this test, the speeds of the various elements are modified according to the table below.
  • a nonwoven weighing about 60 g/m 2 is obtained.
  • the nonwoven has a uniform appearance and an even better MD/CD ratio than in Example 4.
  • Example 2 The conditions of Example 2 are repeated. For this test, the speeds of the various elements are modified according to the table below.
  • a nonwoven weighing about 60 g/m 2 is obtained.
  • the nonwoven has a uniform appearance with an MD/CD ratio of 1.2, which is quite remarkable and unexpected.
  • Example 1 is repeated with a conventional card without a transfer cylinder, applying the speed ratios of example 5 from the doffers to cylinder 12.
  • the nonwoven produced has many folds in the transverse direction and is unusable. or unsaleable.
  • Table 2 Organs Units Example 1
  • Example 2 Example 3
  • Example 4 Example 5
  • Example 6 Drum 1 m/min 1300 850 850 850 850 Drum 2 m/min 0 1450 1450 1450 1450 1450 1450 1450 1450 1450 Comber 3 m/min 78 78 96 120 146 177 Comber 4 m/min 77 77 96 120 146 177 Condenser 5 m/min 38 38 45 56 68 83 Condenser 6 m/min 38 38 45 56 68 83 Detacher 7 m/min 74 74 74 92 112 136
  • Detacher 8 m/min 74 74 74 92 112 136
  • MD means machine direction
  • CD means cross direction
  • the unit m/min is the unit of circumferential speed of the various constituent elements of the installation.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)

Claims (10)

  1. Anlage zur Herstellung von Vliesstoffen im Trockenverfahren, welche umfasst:
    eine Kardiertrommel (1), die von ersten Antriebsmitteln in einer ersten Drehrichtung und mit einer ersten Umfangsrotationsgeschwindigkeit drehend angetrieben wird, wobei sie ein Faservlies liefert,
    unmittelbar der Trommel (1) nachgelagert, in der Durchlaufrichtung der Fasern durch die Anlage, eine Übertragungswalze (2), die von zweiten Drehantriebsmitteln in einer zweiten Drehrichtung, die zur ersten Drehrichtung entgegengesetzt ist, und mit einer zweiten Umfangsrotationsgeschwindigkeit drehend angetrieben wird, wobei die zweite Geschwindigkeit größer als die erste Geschwindigkeit ist, wobei die Übertragungswalze (2) am Umfang eine Garnitur (G) aufweist, die eine Vielzahl von Zähnen (16) umfasst, die bezüglich des Radius der Walze (2) geneigt und in der zweiten Drehrichtung ausgerichtet sind, und
    unmittelbar der Übertragungswalze (2) nachgelagert, ein System, welches in Verarbeitungsrichtung unmittelbar aufeinanderfolgend mindestens eine Abnehmerwalze (3, 4), mindestens eine Verdichtungswalze (5, 6), mindestens eine Schlagwalze (7, 8), ein erstes endloses Förderband (9), eine Saugtrommel (10) und ein zweites endloses Förderband umfasst, wobei die Saugtrommel (10) dem Obertrum des ersten und des zweiten Förderbandes (9, 11) benachbart ist und den Übergang der Fasern vom einen zum anderen sicherstellt,
    dadurch gekennzeichnet, dass das Verhältnis der Umfangsgeschwindigkeit der Abnehmerwalze (3, 4) zu derjenigen der Walze (2) zwischen 0,10 und 0,20 liegt, dadurch, dass das Verhältnis der Umfangsgeschwindigkeit der Verdichtungswalze (5, 6) zu derjenigen der Abnehmerwalze (3, 4) zwischen 0,35 und 0,55 liegt, dadurch, dass das Verhältnis der Umfangsgeschwindigkeit der Schlagwalze (7, 8) zu derjenigen der Verdichtungswalze (5, 6) zwischen 1,50 und 1,75 liegt, dadurch, dass das Verhältnis der Geschwindigkeit des ersten Förderbandes (9) zu derjenigen der Schlagwalze (7, 8) zwischen 0,95 und 1,10 liegt, dadurch, dass das Verhältnis der Umfangsgeschwindigkeit der Trommel (10) zur Geschwindigkeit des ersten Förderbandes (9) zwischen 0,70 und 0,90 liegt, und dadurch, dass das Verhältnis der Geschwindigkeit des zweiten Förderbandes (11) zur Umfangsgeschwindigkeit der Trommel (10) zwischen 0,70 und 0,90 liegt.
  2. Anlage nach Anspruch 1, dadurch gekennzeichnet, dass das Verhältnis der zweiten Geschwindigkeit zur ersten Geschwindigkeit größer oder gleich 1,2 und vorzugsweise größer oder gleich 1,3 ist.
  3. Anlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Durchmesser der Übertragungswalze (2) kleiner als derjenige der Kardiertrommel (1) ist.
  4. Anlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Neigungswinkel der Zähne zum Radius zwischen 70° und 80° liegt und die radiale Höhe der Zähne zwischen 0,7 und 1,5 mm liegt.
  5. Anlage nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine Saugwalze (12), die dem Obertrum des zweiten Förderbandes (11) benachbart ist.
  6. Anlage nach Anspruch 1, dadurch gekennzeichnet, dass das Verhältnis der Umfangsgeschwindigkeit der Walze (12) zu derjenigen des zweiten Förderbandes (11) zwischen 0,75 und 1,05 liegt.
  7. Vliesstoffprodukt auf der Basis von Kunstfasern und/oder synthetischen Fasern, welches eine Masse pro m2 zwischen 45 und 80 g/m2 aufweist und dessen Fasern einen Titer zwischen 1,3 und 2,2 dtex und eine Länge zwischen 30 und 50 mm, ein Verhältnis der Festigkeit in der Maschinenrichtung zur Festigkeit in der Querrichtung, das 1,0 bis 1,5 beträgt, eine Dehnung in der Maschinenrichtung zwischen 35 und 70 % und vorzugsweise zwischen 40 und 60 % und eine Dehnung in der Querrichtung zwischen 70 und 130 % und vorzugsweise zwischen 90 und 125 % aufweisen, welches durch das Verfahren nach Anspruch 9 erhalten wird.
  8. Vliesstoffprodukt nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Fasern aus Viskose, aus Lyocell, aus Polyester oder aus Polypropylen bestehen.
  9. Verfahren zur Herstellung von Vliesstoffen im Trockenverfahren in einer Anlage nach Anspruch 1, dadurch gekennzeichnet, dass die Anlage mit den folgenden Geschwindigkeitsverhältnissen betrieben wird:
    - das Verhältnis der Umfangsgeschwindigkeit der Abnehmerwalze (3, 4) zu derjenigen der Walze (2) liegt zwischen 0,10 und 0,20;
    - das Verhältnis der Umfangsgeschwindigkeit der Verdichtungswalze (5, 6) zu derjenigen der Abnehmerwalze (3, 4) liegt zwischen 0,35 und 0,55;
    - das Verhältnis der Umfangsgeschwindigkeit der Schlagwalze (7, 8) zu derjenigen der Verdichtungswalze (5, 6) liegt zwischen 1,50 und 1,75;
    - das Verhältnis der Geschwindigkeit des ersten Förderbandes (9) zu derjenigen der Schlagwalze (7, 8) liegt zwischen 0,95 und 1,10;
    - das Verhältnis der Umfangsgeschwindigkeit der Trommel (10) zur Geschwindigkeit des ersten Förderbandes (9) liegt zwischen 0,70 und 0,90; und
    - das Verhältnis der Geschwindigkeit des zweiten Förderbandes (11) zur Umfangsgeschwindigkeit der Trommel (10) liegt zwischen 0,70 und 0,90.
  10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass das Verhältnis der Umfangsgeschwindigkeit der Walze (12) zu derjenigen des zweiten Förderbandes (11) zwischen 0,75 und 1,05 liegt.
EP19828809.4A 2019-01-08 2019-12-31 Einheit und verfahren zur herstellung von vliesstoffen Active EP3908687B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1900150A FR3091541B1 (fr) 2019-01-08 2019-01-08 Installation de production de non-tissés
PCT/EP2019/087194 WO2020144084A1 (fr) 2019-01-08 2019-12-31 Installation et procede de production de non-tisses

Publications (2)

Publication Number Publication Date
EP3908687A1 EP3908687A1 (de) 2021-11-17
EP3908687B1 true EP3908687B1 (de) 2023-05-31

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EP19828809.4A Active EP3908687B1 (de) 2019-01-08 2019-12-31 Einheit und verfahren zur herstellung von vliesstoffen

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US (1) US11987916B2 (de)
EP (1) EP3908687B1 (de)
CN (1) CN113508198A (de)
ES (1) ES2953571T3 (de)
WO (1) WO2020144084A1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202022106415U1 (de) * 2022-11-15 2024-02-16 Autefa Solutions Germany Gmbh Faserbehandlungsanlage

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Publication number Priority date Publication date Assignee Title
IT1248587B (it) * 1991-06-28 1995-01-19 Nicola Napolitano Macchina cardatrice a tamburi,in particolare per la preparazione di tessuti non tessuti e nastri in fibre naturali od artificiali.
FR2725216B1 (fr) * 1994-09-30 1996-12-20 Thibeau Et Cie A Dispositif pour detacher et transporter a grande vitesse un voile fibreux en sortie de carde
FR2734285B1 (fr) 1995-05-17 1997-06-13 Icbt Perfojet Sa Procede pour la fabrication d'une nappe textile non tissee par jets d'eau sous pression, et installation pour la mise en oeuvre de ce procede
DE19521778A1 (de) * 1995-06-20 1997-01-02 Hollingsworth Gmbh Vlieskrempel, sowie Verfahren zur Vliesherstellung
FR2770855B1 (fr) * 1997-11-07 2000-01-28 Asselin Procede et dispositif pour produire une nappe textile
HU225371B1 (en) * 1998-10-23 2006-10-28 Dexter Corp Nonwoven for polymer moulding applications
FR2830263B1 (fr) 2001-10-03 2004-08-06 Thibeau Procede et installation pour la production d'un non-tisse condense, et dispositif de condensation d'un non-tisse
FR2832737B1 (fr) * 2001-11-29 2004-03-19 Thibeau Carde comportant un cylindre transfert accumulateur et procede de production d'un non-tisse
FR2845697B1 (fr) * 2002-10-11 2005-05-27 Rieter Perfojet Procede et machine de production d'un non-tisse a reduction de la vitesse de deplacement de la nappe compactee
FR2846013B1 (fr) * 2002-10-18 2005-05-27 Rieter Perfojet Tissu non-tisse de petite masse volumique et ses procede et installation de production et ses applications
FR2849869B1 (fr) * 2003-01-14 2005-09-09 Ahlstrom Brignoud Procede de fabrication d'un non tisse composite et installation pour la mise en oeuvre dudit procede
DE50308225D1 (de) * 2003-07-29 2007-10-31 Spinnbau Gmbh Vlieskrempel und Verfahren zur Herstellung eines Faservlieses
DE602004006962T2 (de) * 2004-04-22 2008-02-07 Asselin-Thibeau Karde mit einer drehbaren Absaugübertragungsvorrichtung
FR2885915B1 (fr) * 2005-05-20 2007-08-03 Rieter Perfojet Sa Tambour pour machine de fabrication d'un non tisse a motifs et non tisse obtenu
DK2085504T3 (da) 2008-02-04 2011-04-04 Albis Spa Sugeindretning til at overføre et ikke-vævet lag
US20170145610A1 (en) * 2009-09-24 2017-05-25 Welspun Global Brands Limited Wonder Fabric
US20110070791A1 (en) * 2009-09-24 2011-03-24 Welspun Global Brands Limited Wonder Fabric
FR3059344B1 (fr) * 2016-11-25 2019-11-22 Andritz Asselin Thibeau Dispositif d'etirage d'un voile dispose entre un dispositif de carde et un etaleur nappeur

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Publication number Publication date
WO2020144084A1 (fr) 2020-07-16
ES2953571T3 (es) 2023-11-14
EP3908687A1 (de) 2021-11-17
CN113508198A (zh) 2021-10-15
US20220056624A1 (en) 2022-02-24
US11987916B2 (en) 2024-05-21

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