EP1356147A2 - Procede d'application hydrodynamique de jets d'eau sur une bande de materiau et faisceau de buses concu pour produire des jets de liquide - Google Patents

Procede d'application hydrodynamique de jets d'eau sur une bande de materiau et faisceau de buses concu pour produire des jets de liquide

Info

Publication number
EP1356147A2
EP1356147A2 EP01990506A EP01990506A EP1356147A2 EP 1356147 A2 EP1356147 A2 EP 1356147A2 EP 01990506 A EP01990506 A EP 01990506A EP 01990506 A EP01990506 A EP 01990506A EP 1356147 A2 EP1356147 A2 EP 1356147A2
Authority
EP
European Patent Office
Prior art keywords
nozzle
bar
web
strips
nozzle bar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01990506A
Other languages
German (de)
English (en)
Other versions
EP1356147B1 (fr
Inventor
Gerold Fleissner
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
Fleissner GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fleissner GmbH filed Critical Fleissner GmbH
Publication of EP1356147A2 publication Critical patent/EP1356147A2/fr
Application granted granted Critical
Publication of EP1356147B1 publication Critical patent/EP1356147B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

Definitions

  • the invention relates to a method for the hydrodynamic application of nonwovens, tissue, woven or knitted fabrics with liquid jets, by using a high pressure of up to 1000 bar to produce a liquid from fine nozzle openings arranged in close proximity in a row of nozzles across the working width Nozzle bar is sprayed against the web of material running in front of the nozzle bar.
  • a larger amount of water is advantageous for treating the desired effect on the web. This is the case, for example, in the production of perforated nonwovens by means of hydrodynamic needling. Increasing the diameter of the nozzle holes to allow more water to pass through is not desirable, however, since the effect of the water jet then decreases as the fleece hardens.
  • the invention has for its object to find a solution for how a larger amount of liquid or several nozzle jets can be brought close to one another on a conventional nozzle bar with nozzle strips mounted in this sealed manner.
  • the invention provides that the sprayed-on liquid is distributed uniformly over the working width of the web, but in the direction of transport more than one jet of water hits one another at a time on a small area of the leading web.
  • This advantageously means that a larger amount of liquid can be sprayed at the same time by several water jets from several nozzle strips - as viewed in the direction of the leading web - onto one or more points of contact on the web.
  • a nozzle bar consists of an upper part which extends over the working width of the web and a lower part, a pressure chamber which is round in cross section being arranged over its length in the upper part and containing the liquid under pressure, for. B. is supplied on the end face, parallel to which, after an intermediate wall in the lower part, a pressure distribution chamber is provided, which is connected to the pressure chamber via liquid flow holes arranged in the intermediate wall, and further being liquid-tightly supported on the lower part of the nozzle strips with the holes for the nozzles is.
  • a nozzle bar of this type is known from EP-A-0 725 175. Compared to the constructions according to US-A-4 069 563 or DD-A-220 060 or DE-C-37 27 843, it has the advantage of a simpler construction and therefore also less expected downtimes due to maintenance. This construction ensures an even distribution of the liquid over the length of the nozzle strip.
  • the two nozzle strips should expediently be arranged close together in the housing of the nozzle bar.
  • a pressure and then a pressure distribution chamber for supplying and distributing the liquid should be assigned to each of the two nozzle strips in the one nozzle bar housing, so that the two pressure distribution chambers and possibly also the pressure chambers are arranged close together in the one housing of the nozzle bar.
  • this type of “duplex” nozzle bar more nozzle strips can be arranged over the available circumference of a drum, for example a thorn drum, or in other words more water jets can be effective.
  • the circumferential distance of the water jets hitting the material web can also be influenced.
  • the two lines of the pressure distribution chambers arranged one behind the other, together with the associated nozzle strip in the one nozzle bar housing can be directed obliquely towards one another, such that the the water jets hitting the web of arrows are directed towards one another in an arrow-shaped manner and are thus arranged even closer together at the point of impact.
  • the interface between the two is created in a housing with the two nozzle strips.
  • the nozzle jet can be on the product itself or behind the product.
  • FIG. 1 shows a section across a "duplex” nozzle bar
  • FIG. 2 also shows a section through a “duplex” nozzle bar with obliquely directed nozzle jets
  • FIG. 3 also shows a section through a "duplex” nozzle bar, but with such opposing nozzle jets that they meet on the web.
  • a nozzle bar basically consists of the parts as described in EP-A-0 725 175. In this respect, reference is made to the disclosure of EP-A-0 725 175.
  • a nozzle bar consists of a housing 1 with two longitudinal bores 2 and 3.
  • the two longitudinal bores 2, 3 are separated from one another by an intermediate wall 4, in which the flow bores 5 connecting the bores 2, 3 are arranged. Opposite these flow bores, in line on the other side of the bore 3, a narrower slot 6 is provided for the liquid to exit.
  • a nozzle bar with this basic construction is still advantageous here as well.
  • the water under high pressure of up to 1000 bar flows into the bore 2 in the upper part of the housing, which serves as a pressure chamber, and is distributed along the entire shower senbalkens through the flow bores 5 in the arranged in the lower part of the housing pressure distribution chamber 3.
  • a bottom part is attached to the underside of the housing 1 with a plurality of screws, not shown here.
  • the nozzle strip 7 required for generating the liquid jets is stored in a groove 8 in the base part.
  • the liquid jets then exit through the slot 9 in the middle below the nozzle strip 7 from the nozzle bar and meet the z. B. on the drum 10 guided web.
  • the two nozzle strips 7 and T are arranged closer together than in the case of two individual nozzle bars, so that more can be arranged on the nozzle strips on a drum 10 and liquid jets 11 that can be generated can impinge than previously known.
  • the construction according to FIG. 1 is provided when the material web is guided on a horizontally guided belt. If the web is guided on a drum, then the construction according to FIG. 2 is recommended, where the water jets of both nozzle strips 7, T also hit the material web vertically even with a drum guide. This is possible because the pressure chambers 2 and 77 T. ⁇ NZX are unchanged, but the two pressure distribution chambers 3 ", 3 '" are drilled offset from one another, so that the flow bores 5 "and 5"' and the slots 6 "and 6 ' "are directed towards each other in the shape of an arrow.
  • the bar 1 and 2 can also be used to produce a line pattern with a variety of individually recognizable lines.
  • the bar 1 should preferably oscillate back and forth at a defined frequency of up to 50 Hz, preferably around 20 Hz. Since the water jets from the two nozzle strips 7, 7 'due to their distance from one another are moving forward If the web meets the web at different times, any type of line pattern can be pressed into the web with the water jets while the bar is vibrating.
  • the nozzle strips can also be provided with a special perforation with nozzle holes or groups of holes with larger distances. The perforation at the end of the strip can also start at a different distance from the outermost end, so the zero position can vary.
  • a full-area needling of a nonwoven product can be generated with the first nozzle strip and a pattern can be applied with the second nozzle strip, e.g. B. a stripe pattern with parallel lines of any kind.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

Selon l'état antérieur de la technique, un faisceau de buses est logé sur un dispositif conçu pour produire des jets de liquide destinés à être appliqués sur des fibres d'une bande de fibres guidée le long dudit faisceau. Ledit faisceau de buses est constitué d'un boîtier de faisceau s'étendant sur toute la largeur de travail de la bande de fibres, ledit boîtier comportant deux perçages longitudinaux superposés, séparés au moyen d'une paroi intermédiaire pourvue de perçages d'écoulement. La ligne de buses nécessaire à la production des jets de liquide est logée de manière étanche aux liquides dans la partie inférieure du boîtier, et est parcourue par l'eau sous pression. L'invention vise à augmenter la quantité d'eau en aiguilles appliquée sur le matériau. A cet effet, le boîtier comporte deux lignes de buses devant être alimentées de manière adéquate en eau sous pression. Ainsi, il est possible de faire intervenir un nombre supérieur de lignes de buses et par conséquent de jets de buses sur un tambour, ce qui se révèle avantageux pour la production de divers effets d'aiguilles au moyen d'un faisceau de buses.
EP01990506A 2000-12-13 2001-12-05 Procede d'application hydrodynamique de jets d'eau sur une bande de materiau et faisceau de buses concu pour produire des jets de liquide Expired - Lifetime EP1356147B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10061985A DE10061985A1 (de) 2000-12-13 2000-12-13 Verfahren zur hydrodynamischen Beaufschlagung einer Warenbahn mit Wasserstrahlen und Düsenbalken zur Erzeugung von Flüssigkeitsstrahlen
DE10061985 2000-12-13
PCT/EP2001/014233 WO2002048441A2 (fr) 2000-12-13 2001-12-05 Procede d'application hydrodynamique de jets d'eau sur une bande de materiau et faisceau de buses conçu pour produire des jets de liquide

Publications (2)

Publication Number Publication Date
EP1356147A2 true EP1356147A2 (fr) 2003-10-29
EP1356147B1 EP1356147B1 (fr) 2004-07-14

Family

ID=7666910

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01990506A Expired - Lifetime EP1356147B1 (fr) 2000-12-13 2001-12-05 Procede d'application hydrodynamique de jets d'eau sur une bande de materiau et faisceau de buses concu pour produire des jets de liquide

Country Status (6)

Country Link
US (1) US7197795B2 (fr)
EP (1) EP1356147B1 (fr)
JP (1) JP4253502B2 (fr)
AT (1) ATE271142T1 (fr)
DE (2) DE10061985A1 (fr)
WO (1) WO2002048441A2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10064687A1 (de) * 2000-12-22 2002-07-04 Fleissner Maschf Gmbh Co Verfahren zur hydrodynamischen Beaufschlagung einer auch mit endlichen Produkten versehenen Warenbahn mit Wasserstrahlen und Düseneinrichtung zur Erzeugung von Flüssigkeitsstrahlen
DE102004036906A1 (de) * 2004-07-29 2006-03-23 Fleissner Gmbh Vorrichtung zur Behandlung von insbesondere einem Gewebe mittels hydrodynamischer Vernadelung
US7562427B2 (en) * 2005-07-25 2009-07-21 Johnson & Johnson Consumer Companies, Inc. Low-density, non-woven structures and methods of making the same
US20070123131A1 (en) * 2005-07-25 2007-05-31 Hien Nguyen Low-density, non-woven structures and methods of making the same
US7562424B2 (en) * 2005-07-25 2009-07-21 Johnson & Johnson Consumer Companies, Inc. Low-density, non-woven structures and methods of making the same
DE102008025237A1 (de) * 2008-05-27 2009-12-03 Fleissner Gmbh Vorrichtung zur Beaufschlagung von flächigem Material mittels eines unter Druck stehenden Mediums
EP2302119B1 (fr) * 2009-09-18 2012-06-20 Groz-Beckert KG Film de buse pour une poutre à buse doté de segments de film pouvant être reliés
EP2301671B1 (fr) 2009-09-18 2012-06-06 Groz-Beckert KG Rampe de buses pour une machine de traitement du textile
EP2302120B1 (fr) * 2009-09-22 2012-06-20 Groz-Beckert KG Injecteur pour une machine de traitement du textile

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US3042576A (en) * 1957-06-17 1962-07-03 Chicopee Mfg Corp Method and apparatus for producing nonwoven fibrous sheets
US3493462A (en) * 1962-07-06 1970-02-03 Du Pont Nonpatterned,nonwoven fabric
US3613999A (en) * 1970-04-29 1971-10-19 Du Pont Apparatus for jetting liquid onto fibrous material
US4021284A (en) * 1972-11-13 1977-05-03 Johnson & Johnson Nonwoven fabric and method and apparatus for producing the same
US4069563A (en) * 1976-04-02 1978-01-24 E. I. Du Pont De Nemours And Company Process for making nonwoven fabric
JPH0784696B2 (ja) * 1983-05-20 1995-09-13 ジヨンソン・アンド・ジヨンソン 不織布製造方法
US4647490A (en) * 1983-05-20 1987-03-03 Johnson & Johnson Cotton patterned fabric
US4880168A (en) * 1987-07-13 1989-11-14 Honeycomb Systems, Inc. Apparatus for jetting high velocity liquid streams onto fibrous materials
US5632072A (en) * 1988-04-14 1997-05-27 International Paper Company Method for hydropatterning napped fabric
CA2011515C (fr) * 1990-03-05 1994-10-11 Roger Boulanger Methode de fabrication de tissu non-tisse a surface adhesive thermoactive, produits derives et emploi
US5238644A (en) * 1990-07-26 1993-08-24 Johnson & Johnson Inc. Low fluid pressure dual-sided fiber entanglement method, apparatus and resulting product
JPH05209360A (ja) * 1992-01-29 1993-08-20 Daiwabo Create Kk フロック加工品の処理方法
JP3172306B2 (ja) * 1992-12-15 2001-06-04 日本バイリーン株式会社 ノズルプレート
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Also Published As

Publication number Publication date
WO2002048441A2 (fr) 2002-06-20
WO2002048441A3 (fr) 2002-11-14
US7197795B2 (en) 2007-04-03
DE50102889D1 (de) 2004-08-19
ATE271142T1 (de) 2004-07-15
US20040078945A1 (en) 2004-04-29
JP4253502B2 (ja) 2009-04-15
DE10061985A1 (de) 2002-06-20
JP2004515665A (ja) 2004-05-27
EP1356147B1 (fr) 2004-07-14

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