EP2047020B1 - Dispositif pour la fabrication de non-tissés ajourés - Google Patents

Dispositif pour la fabrication de non-tissés ajourés Download PDF

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Publication number
EP2047020B1
EP2047020B1 EP07725939A EP07725939A EP2047020B1 EP 2047020 B1 EP2047020 B1 EP 2047020B1 EP 07725939 A EP07725939 A EP 07725939A EP 07725939 A EP07725939 A EP 07725939A EP 2047020 B1 EP2047020 B1 EP 2047020B1
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EP
European Patent Office
Prior art keywords
projections
side walls
drain openings
carrier device
angle
Prior art date
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Active
Application number
EP07725939A
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German (de)
English (en)
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EP2047020A1 (fr
Inventor
Ullrich MÜNSTERMANN
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.)
Truetzschler Nonwovens GmbH
Original Assignee
Truetzschler Nonwovens GmbH
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Filing date
Publication date
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Application filed by Truetzschler Nonwovens GmbH filed Critical Truetzschler Nonwovens GmbH
Priority to PL07725939T priority Critical patent/PL2047020T3/pl
Publication of EP2047020A1 publication Critical patent/EP2047020A1/fr
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Publication of EP2047020B1 publication Critical patent/EP2047020B1/fr
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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
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
    • D04H3/11—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by fluid jet

Definitions

  • the invention relates to a device for producing open-end nonwoven fabrics with the aid of a hydrodynamic needling device and a carrier device, on the surface of which a plurality of elevations are arranged at a distance from one another, in the region of which drainage openings are provided for the removal of liquid emerging from the needling device, the elevations being referred to have on the surface of the support device at least partially inclined and / or rounded contact with the nonwoven fabric in contact surfaces.
  • a process for the production of openwork nonwovens is already known (US Pat. EP 0 215 684 B1 Uni-Charm), which is equipped with a device for producing openwork nonwoven fabrics by means of a hydrodynamic needling device and a carrier device or drum, on the surface of which a plurality of elevations are arranged at a distance from one another, in whose area drainage openings for removing liquid emerging from the needling device are provided, wherein the elevations with respect to the surface of the support device at least partially inclined and / or rounded can be brought into contact with the nonwoven fabric surfaces.
  • the distances between the elevations may have a uniform distance from each other in the circumferential direction and also in the transverse direction of the carrier device or the drum.
  • nonwovens are perforated, whereby more fibers occur in the direction of conveyance of the nonwoven fabric moving further with the aid of the drum than in the transverse direction due to the alignment and shaping of the elevations.
  • the uneven distribution of the fibers or the washing away of the fibers in the fleece with respect to the direction of movement of the fleece to the right and left is done with the help of the unfavorable incident on the fleece water jet while continuing to move the fleece using the drum.
  • US-A-5 098 764 is a device for the production of open-worked nonwovens by means of hydrodynamic needling known.
  • One surface has elevations, and drainage openings are arranged in the intermediate regions.
  • a similar device describes the US-A-5 567 376 , Here is the device for producing open-work films.
  • the invention is based on the object with the apparatus for producing perforated nonwovens to ensure a uniform orientation and / or distribution of the fiber materials or filaments in the nonwoven fabric.
  • the measures provided for on the surface of the support device elevations at least two in the conveying direction of the support device in approximately parallel, at least approximately upright side walls, which are bounded by at least one surface, with the surface of the Carrier device includes an angle ⁇ , which is smaller than 90 °.
  • the surface bounded by the side walls encloses an angle ⁇ with the carrier device which is between 0 ° and 80 °, in particular between 20 ° and 45 °.
  • the filaments in the nonwoven fabric are optimally aligned in the longitudinal direction and in part also in the transverse direction of the nonwoven fabric. As a result, a uniform distribution of the fiber is ensured over the entire nonwoven surface.
  • the elevations provided on the surface of the carrier device have at least two transverse to the conveying direction of the carrier device approximately parallel, at least approximately upright side walls which are delimited by at least the one surface with the surface the carrier device includes an angle ⁇ greater than 0 °.
  • the elevations provided on the surface of the carrier device to have at least two, at least approximately transversely to the conveying direction of the carrier device approximately parallel, at least approximately upright side walls which are delimited by at least the one flat surface which is integral with the surface of the carrier device Angle ⁇ which is between 80 ° and 90 °.
  • the outwardly directed surfaces of the two adjacent elevations are approximately V-shaped or approximately roof-shaped or enclose an angle ⁇ which is smaller than 180 ° or the surface of each elevation roof-shaped is.
  • the outwardly directed surface of the elevation to be inclined in and / or opposite to the conveying direction of the fleece.
  • the cross-sectional area of the elevation is polygonal, rectangular, circular or oval-shaped.
  • the drainage openings provided in the region of the side walls are greater than 0.3 mm, in particular between 0.4 mm and 3 mm.
  • the drainage openings provided in the region of the side walls are in some cases greater than 0.1 mm and another part of the drainage openings are in particular between 1 mm and 3 mm in size.
  • the cross section of the drainage openings provided in the region of the side walls is at least in part equal to or 10% to 30% smaller than the cross section of the elevations.
  • the cross section of the drainage openings arranged in the intermediate space of the successive elevations is at least in part equal or 10% to 30% greater than the cross section of the successive drainage openings which lie between the side walls.
  • the drainage openings are arranged in the circumferential direction or production direction behind the elevations in the same row one behind the other and are equal to or greater than the drainage openings are arranged in series and not seen in the production direction behind the elevations and that the drainage openings are approximately as wide as the elevations, wherein the width of the elevations and the underlying drainage openings are approximately between 2.5 mm and 3.5 mm, preferably 3 mm wide and the drainage openings seen in the production direction has a length between 0.5 mm to 3.5 mm, preferably 1 mm, while the drainage holes completely fill the space between the elevations.
  • At least one support device is denoted by 1, according to Fig. 4 is designed as a drum shell with elevations 3.
  • the individual elevations 3 may be arranged in the form of a checkerboard pattern with a uniform spacing on a surface 2 of the carrier device 1.
  • the elevations 3 serve to perforate a nonwoven fabric, not shown in the drawing.
  • a uniform distance from each other increases 3, as already mentioned, a uniform distance from each other.
  • the distances of the individual elevations may also have a different distance from each other.
  • each elevation 3 consists of two parallel side walls 6, which extend in the circumferential direction of the carrier device or drum shell 1. Furthermore, each elevation 3 has two side walls 7 extending in the axial direction of the drum shell.
  • the side walls 6 and 7 of the drum shell 1 are rectangular in relation to each other.
  • the four side walls 6 to 7 are bounded at the top by a surface 5 inclined or roof-shaped or truncated with respect to the surface 2 of the drum shell 1.
  • the surface 5 of the elevation 3 can form an angle ⁇ with the surface 2 of the carrier device 1 (FIG. Fig. 2 ) equal to or greater than 0 °, in particular greater than 5 ° to 25 °.
  • the side walls 6 and 7 form with the surface 2 of the drum shell 1 an angle ⁇ , which may be between 80 ° and 110 °, preferably 90 °.
  • the two adjacent surfaces 5 of two ridges 3 may include a V-shaped angle ⁇ which is smaller than 180 ° and between 100 ° and 130 °, respectively.
  • the surfaces 5 of the elevations 3 are inclined in the conveying direction, arranged.
  • the surfaces 5 can also be arranged inclined in the opposite direction of conveyance extending to the surface 2 of the drum shell 1.
  • the drainage openings are the same size.
  • the drainage openings may also be of different sizes.
  • the drainage openings 4 in the intermediate spaces of the circumferentially extending elevations 3 are greater than 0.3 mm, in particular between 0.4 mm and 3 mm in size.
  • the provided in the region of the side walls 6 and 7 drainage openings 4, 4.1 may, for. T. between 0.3 mm and 1 mm and another part of the drainage openings 4 between 0.4 mm and 3 mm in size.
  • the cross section of the interspaces of the successive drainage openings 4 is at least partially between 10% and 30% greater than the cross section of the succession lying drainage openings 4.1 between the side walls 6.
  • the individual elevations or drainage openings 4 are arranged approximately symmetrically distributed on the surface of the support device 1.
  • the drainage openings 4 are arranged in the circumferential direction or production direction according to arrow 8 behind the elevations 3 in the same row behind each other and are equal or advantageously greater than the elevations 4.1, which are arranged in series and in Production direction can not be seen behind the increases.
  • the drainage openings 4 can be approximately as wide as the elevations.
  • the width of the elevation and the drainage openings 4 lying behind can be approximately between 2.5 mm and 3.5 mm, preferably 3 mm, and the drainage openings 4 can have a length of 0.5 mm to 3.5 mm, preferably 1 mm, in the direction of production.
  • the drainage openings 4 can also completely fill the gap between the elevations 3, so that the water can drain off easily in the circumferential direction.
  • Some of the drainage openings 4.1 may have a different cross-sectional opening and, viewed in the direction of production, may be mutually offset relative to one another.

Landscapes

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

Claims (15)

  1. Dispositif de fabrication de non-tissés ajourés à l'aide d'un dispositif d'aiguilletage hydrodynamique et d'un dispositif de support (1) à la surface (2) duquel sont disposées à distance l'une de l'autre plusieurs saillies (3) dans la région desquelles sont ménagées des ouvertures de drainage (4) destinées à évacuer du liquide sortant du dispositif d'aiguilletage, et dans lequel les saillies (3), de la surface (2) du dispositif de support (1), peuvent être amenées en contact avec le non-tissé, les saillies (3) ayant la forme d'une pyramide tronquée ou d'un toit incliné et étant disposées, tout comme les ouvertures de drainage (4), de façon répartie à peu près symétriquement sur la surface (2) du dispositif de support (1) de sorte qu'une distribution et/ou orientation uniforme des fibres ou des filaments est garantie dans le non-tissé, caractérisé en ce que les saillies (3) prévues sur la surface (2) du dispositif de support (1) comportent au moins deux parois latérales (6) qui s'étendent à peu près parallèlement dans la direction de transport du dispositif de support (1), qui sont disposées au moins approximativement verticalement et qui sont délimitées par au moins une surface (5) qui forme avec la surface (2) du dispositif de support (1) un angle (α) qui est inférieur à 90°.
  2. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la surface (5), qui est délimitée par les parois latérales (6), forme avec le dispositif de support (1) un angle α qui est compris entre 0° et 80°, notamment entre 20° et 45°.
  3. Dispositif selon la revendication 2, caractérisé en ce que les parois latérales (6) des saillies (3) ont une conformation approximativement plane.
  4. Dispositif selon la revendication 1, caractérisé en ce que les saillies (3), prévues sur la surface (2) du dispositif de support (1), comportent au moins deux parois latérales (7) qui s'étendent à peu près parallèlement transversalement à la direction de transport du dispositif de support (1), qui sont disposées approximativement verticalement et qui sont délimitées par au moins une des surfaces (5) qui forme avec la surface (2) du dispositif de transport (1) un angle α qui est supérieur à 0°.
  5. Dispositif selon la revendication 1, caractérisé en ce que les saillies (3), prévues sur la surface (2) du dispositif de transport (1), comportent au moins deux parois latérales qui s'étendent à peu près parallèlement transversalement à la direction de transport du dispositif de support (1), qui sont disposées approximativement verticalement et qui sont délimitées par au moins une des surfaces planes (5) qui forme avec la surface (2) du dispositif de transport (1) un angle P qui est compris entre 80° et 110°, avantageusement égal à 90°.
  6. Dispositif selon la revendication 1, caractérisé en ce que les surfaces (5), dirigées vers l'extérieur, des deux saillies (3) disposées l'une à côté de l'autre sont orientées l'une vers l'autre en formant à peu près un V.
  7. Dispositif selon la revendication 7, caractérisé en ce que les surfaces (5), dirigées vers l'extérieur, des deux saillies (3) disposées l'une à côté de l'autre forment un angle δ qui est inférieur à 180°.
  8. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la surface (5), dirigée vers l'extérieur, de la saillie (3) est disposée de façon à s'étendre obliquement dans la direction de transport du non-tissé et/ou la direction opposée à celle-ci.
  9. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la section de la saillie (3) a en vue de dessus une conformation polygonale, rectangulaire, circulaire ou ovale.
  10. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les ouvertures de drainage (4), ménagées dans la région des parois latérales (6, 7), sont supérieures à 0,3 mm, notamment sont comprises entre 0,4 mm et 3 mm.
  11. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les ouvertures de drainage (4, 4.1), ménagées dans la région des parois latérales (6, 7), sont pour partie supérieures à 0,1 mm, et une autre partie des ouvertures de drainage (4) sont notamment comprises entre 1 mm et 3 mm.
  12. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la section des ouvertures de drainage (4, 4.1), ménagées dans la région des parois latérales (6, 7), est au moins pour partie égale, ou inférieure de 10% à 30%, à la section des saillies (3).
  13. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la section des ouvertures de drainage (4), disposées dans l'espace intermédiaire entre les saillies (3) se trouvant l'une derrière l'autre, est au moins pour partie égale, ou supérieure de 10% à 30%, à la section des ouvertures de drainage (4.1), se trouvant l'une derrière l'autre, qui sont situées entre les parois latérales.
  14. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les ouvertures de drainage (4) sont disposées l'une derrière l'autre dans la même rangée en arrière des saillies (3) par référence à la direction périphérique ou la direction de production et ont une dimension supérieure ou égale à celle des ouvertures de drainage (4.1) qui sont disposées en rangée et qui ne se trouvent pas en arrière des saillies (3) par référence à la direction de transport.
  15. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les ouvertures de drainage (4) sont à peu près aussi larges que les saillies (3), les saillies et les ouvertures de drainage (4) disposées en arrière ont une largeur comprise à peu près entre 2,5 mm et 3,5 mm, avantageusement égale à 3 mm, et les ouvertures de drainage (4) remplissent complètement l'espace intermédiaire entre les saillies (3).
EP07725939A 2006-07-31 2007-06-09 Dispositif pour la fabrication de non-tissés ajourés Active EP2047020B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07725939T PL2047020T3 (pl) 2006-07-31 2007-06-09 Urządzenie do produkcji włóknin perforowanych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006035914A DE102006035914B3 (de) 2006-07-31 2006-07-31 Vorrichtung zur Herstellung von durchbrochenen Vliesstoffen
PCT/EP2007/005114 WO2008014842A1 (fr) 2006-07-31 2007-06-09 Dispositif pour la fabrication de non-tissés ajourés

Publications (2)

Publication Number Publication Date
EP2047020A1 EP2047020A1 (fr) 2009-04-15
EP2047020B1 true EP2047020B1 (fr) 2012-10-03

Family

ID=38565870

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07725939A Active EP2047020B1 (fr) 2006-07-31 2007-06-09 Dispositif pour la fabrication de non-tissés ajourés

Country Status (4)

Country Link
EP (1) EP2047020B1 (fr)
DE (1) DE102006035914B3 (fr)
PL (1) PL2047020T3 (fr)
WO (1) WO2008014842A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008029057A1 (de) * 2008-06-18 2009-12-24 Fleissner Gmbh Verfahren und Vorrichtung zur Herstellung eines Filamente aufweisenden Vliesstoffes
US9822487B2 (en) 2014-04-08 2017-11-21 Sca Hygiene Products Ab Method for producing a flushable hydroentangled moist wipe or hygiene tissue
AU2019387234A1 (en) * 2018-11-30 2021-07-15 Kimberly-Clark Worldwide, Inc. Three-dimensional nonwoven materials and methods of manufacturing thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0663165B2 (ja) * 1985-11-20 1994-08-17 ユニ・チヤ−ム株式会社 不織布の製造方法および装置
DE3685277D1 (de) * 1985-09-20 1992-06-17 Uni Charm Corp Vorrichtung und verfahren zur herstellung von durchbrochenen vliesstoffen.
US5098764A (en) * 1990-03-12 1992-03-24 Chicopee Non-woven fabric and method and apparatus for making the same
TW273531B (en) * 1991-08-14 1996-04-01 Chicopee Textile-like apertured plastic films
JP2000516304A (ja) * 1994-11-02 2000-12-05 ザ、プロクター、エンド、ギャンブル、カンパニー 不織布の製造方法
JP3366849B2 (ja) * 1997-12-26 2003-01-14 ユニ・チャーム株式会社 開孔不織布の製造方法
DE19852717A1 (de) * 1998-11-16 2000-05-18 Fleissner Maschf Gmbh Co Vorrichtung zur Herstellung von perforierten Vliesstoffen mittels hydrodynamischer Vernadelung

Also Published As

Publication number Publication date
PL2047020T3 (pl) 2013-03-29
WO2008014842A1 (fr) 2008-02-07
EP2047020A1 (fr) 2009-04-15
DE102006035914B3 (de) 2008-01-31

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