EP1702874A2 - Method and device of transporting a non-woven web with electrostatic charge in at least an area with a dimension smaller than the width of said web - Google Patents

Method and device of transporting a non-woven web with electrostatic charge in at least an area with a dimension smaller than the width of said web Download PDF

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Publication number
EP1702874A2
EP1702874A2 EP06370005A EP06370005A EP1702874A2 EP 1702874 A2 EP1702874 A2 EP 1702874A2 EP 06370005 A EP06370005 A EP 06370005A EP 06370005 A EP06370005 A EP 06370005A EP 1702874 A2 EP1702874 A2 EP 1702874A2
Authority
EP
European Patent Office
Prior art keywords
nonwoven web
transport
web
nonwoven
transport surface
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
EP06370005A
Other languages
English (en)
French (fr)
Other versions
EP1702874B8 (de
EP1702874B1 (de
EP1702874A3 (de
Inventor
Xavier Catry
Marc Barbant
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.)
Asselin Thibeau SAS
Original Assignee
Asselin Thibeau SAS
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 Asselin Thibeau SAS filed Critical Asselin Thibeau SAS
Publication of EP1702874A2 publication Critical patent/EP1702874A2/de
Publication of EP1702874A3 publication Critical patent/EP1702874A3/de
Application granted granted Critical
Publication of EP1702874B1 publication Critical patent/EP1702874B1/de
Publication of EP1702874B8 publication Critical patent/EP1702874B8/de
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H39/00—Associating, collating, or gathering articles or webs
    • B65H39/16—Associating two or more webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/513—Modifying electric properties
    • B65H2301/5132—Bringing electrostatic charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/53—Auxiliary process performed during handling process for acting on performance of handling machine
    • B65H2301/532—Modifying characteristics of surface of parts in contact with handled material
    • B65H2301/5322—Generating electrostatic charge at said surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/31—Suction box; Suction chambers

Definitions

  • the present invention relates to an improvement, in the textile field, in the transport of a nonwoven web by means of a transport surface, and where appropriate in certain applications to the working of the longitudinal edges of the non-woven web. woven transported.
  • the present invention finds application to any type of nonwoven (nonwoven carded, nonwoven said spun based continuous filaments, nonwoven said "metlblown” obtained by molten route, nonwoven said airlaid Obtained a Vogellic way) and is preferably used before consolidation of the nonwoven web.
  • nonwoven web generally designates any web of fibers and / or filaments or superposition of webs of fibers and / or filaments, regardless of the method of manufacture. the sail or sails, and the type of fibers or filaments.
  • the nonwoven web may consist of one or more webs of fibers or filaments selected from the list: carded nonwoven web, nonwoven web "ugly air”, nonwoven web of "meltblown” type "Spun non-woven fleece”.
  • all the sails may be of the same type, or the nonwoven may be composite, that is to say composed of several sails of different types such as for example a composite nonwoven of type CMC (carded sail / sail “meltblown” / sail carded) or type SMS (sail “spun” / sail “meltblown” / sail “spun”)
  • nonwoven generally undergoes at a later stage of its constitution one or more consolidation steps such as in particular mechanical bonding, for example by needling, hydraulic bonding. by jets of water, thermoling by calendering, or chemical bonding for example by means of an adhesive.
  • non-woven designates indifferently the veil or the superposition of veils of fibers and / or filaments before consolidation or after consolidation.
  • the transport surface during its displacement, carries with it a boundary layer of air. As long as the nonwoven web is inside this boundary layer of air, there is generally no problem. On the other hand, as soon as the nonwoven exits all or part of this limit air layer, problems of raising and turning of the nonwoven web are observed which are extremely detrimental to the quality of the non-woven web. -woven. In practice, these problems arise in all transport regions where the nonwoven web is likely to be influenced externally (for example airflow), in the regions of change of direction of transport, and in transition regions of the nonwoven web for example between two successive transport surfaces. These problems also become predominant when increasing the transport speed of the nonwoven web.
  • airflow for example airflow
  • air permeable transport surfaces are used in combination with suction means to press the nonwoven web across its entire width against the transport surface.
  • the Applicant has shown that the suction flows generated by these suction means create parasitic air circulations which are the source of problems of turning the selvedges of the nonwoven web during transport.
  • edge means a longitudinal portion of small width (relative to the width of the nonwoven web) which extends from a longitudinal edge of the nonwoven web. But the more the suction is increased to press the nonwoven web against the transport surface, the greater the risk of turning the edges of the nonwoven web by these parasitic air flows.
  • this solution for holding the conveyed nonwoven web by suction can not be used in all applications where the transport belts used are impervious to air, and for example, for transport a web of nonwoven in the coated lane to undergo the usual operations of superposition on itself (topping) of the nonwoven web in a spreader-lapper.
  • a cutting solution used to date consists in implementing at the edge of the sheet a holding plate of the non-woven strip which is applied to the strip, in combination with a suction box which is positioned at the right the edge that you want to remove, and that allows to suck all the fibers of this edge.
  • the retaining plates are very difficult to adjust: when they are not sufficiently in contact with the nonwoven web, said nonwoven web is deformed under the effect of the suction; when they are applied too strongly on the tape nonwoven, said nonwoven web is blocked and tears.
  • the present invention has the general and main objective of proposing a new technical solution for transporting a non-woven web on a transport surface (conveyor belt, rolls, etc.) which can be implemented with transport surfaces permeable or not to the air, and which reduces the risk of deformation or alteration of the structure of the web of nonwoven transported.
  • a transport surface conveyor belt, rolls, etc.
  • This objective is generally achieved by maintaining the nonwoven web with respect to the transport surface, by means of electrostatic forces, and in at least one electrostatic holding zone which has a transverse dimension reduced by relative to the width of the nonwoven web.
  • the invention thus has as its first object a method of transporting at least one nonwoven web, by means of a movable transport surface.
  • the nonwoven web and / or the transport surface are electrostatically charged so as to electrostatically adhere the nonwoven web to the transport surface in at least a first zone. in which the dimension measured in the direction perpendicular to the direction of transport is less than the width of the nonwoven web.
  • the nonwoven web and / or the transport surface is electrostatically charged so as to electrostatically adhere the nonwoven web to the transport surface in at least a second holding zone, the dimension measured in the transverse direction perpendicular to the conveying direction is smaller than the width of the nonwoven web, and which is positioned at the right of the first holding zone in the transverse direction perpendicular to the transport direction and is spaced apart from the first maintaining zone by a distance (e) measured in said transverse direction.
  • the method is used to electrostatically maintain against the transport surface and over a portion of the path, at least one selvedge and preferably the two selvedges of a nonwoven web.
  • each holding zone extends laterally in the transverse direction to the longitudinal edge of the nonwoven web.
  • each holding zone is created near a longitudinal edge of the nonwoven web but does not extend laterally in the transverse direction to that longitudinal edge.
  • the process of the invention is carried out on at least one unconsolidated nonwoven web.
  • the second object of the invention is a system for transporting at least one nonwoven web.
  • this system comprises at least one surface for transporting the nonwoven web, and at least one ionization module for locally generating a longitudinal ionizing field of small width and having a main axis of ionization oriented substantially in the transport direction of the nonwoven web and / or for locally generating an ionizing field which does not extend to the longitudinal edges of the nonwoven web.
  • a first upper belt conveyor 1 comprising a conveyor belt 1a (conveying surface) driven by rollers 1b, is used to transport a first nonwoven web W1 in the transport direction MD1 to a transfer roller 3 rotatably mounted at the end of the first conveyor.
  • This rotary transfer roller 3 allows, in a manner known per se, to transfer the first nonwoven web W1 to a second transport surface formed by the web 2a of a second lower belt conveyor 2, which is arranged below the web first conveyor 1 and the transfer roller 3.
  • the transfer roller 3 comprises a fixed suction sector 3a delimited by the fixed plates 3b, and allowing in operation to press on its periphery the nonwoven web W1 transfer course.
  • the transport surface 2a of the second lower conveyor 2 is used to transport a second nonwoven web W2 in the transport direction MD2.
  • the first nonwoven web W1 is deposited by the transfer roll 3 on the second nonwoven web W2.
  • the transport surface 2a allows, downstream of the transfer roller 3, to transport the two superposed nonwoven webs W1 and W2 in the form of a nonwoven web W3, in the direction of transport MD2, then in the transport direction MD3 after the detour roll 2b.
  • the transport and reunification system of nonwoven webs W1 and W2 described above is equipped with ionization means 4 arranged on either side of the transfer roller 3 and for electrostatically loading the selvedges of the non-woven web.
  • W2 fabric immediately upstream of the transfer roller 3 and the edges of the nonwoven web W3 immediately downstream of the transfer roller 3.
  • the ionization means comprise four ionization modules each constituted, in the particular example illustrated, an ionizing bar 4a and an ionizing brush 4b fixed in position above and in the vicinity of the nonwoven web W2 or W3.
  • the ionizing bar 4a and the ionizing brush 4b make it possible in operation, and in a manner known per se, to each generate a strong electric field saturated with ions, called the ionizing field.
  • the ionizing bar 4a and the ionizing brush 4b comprise for example a plurality of electrodes or high-voltage tips, which are powered by a high-voltage DC generator (not shown).
  • the main difference between the ionizing bar 4a and the ionizing brush 4b is the size of the ionizing field generated: elongated ionizing field in the case of the ionizing bar 4a; ionizing field of very small dimension in the case of the ionizing brush 4b.
  • an ionizing brush 4b (in addition to an ionizing bar 4a) is used so as to generate an ionizing field as close as possible to the pinch line between the rotary transfer member. 3 and the transport surface 2a.
  • the global ionizing field ZI generated by each ionization module 4 is a longitudinal field having a main ionization axis 4c.
  • FIG. 3 schematically shows, by hatching, the zone of ionization substantially covered laterally (in the transverse direction CD) by the global ionization field ZI of an ionization module 4 (ionizing bar 4a + ionizing brush). adjacent 4b).
  • each ionizing field (ZI) generated by an ionization module 4 extends laterally (direction CD) at least to the longitudinal edge B closest to the nonwoven web W2 or W3, and preferably covers said longitudinal edge as illustrated in FIG. 3.
  • FIGS. 1 schematically shows, by hatching, the zone of ionization substantially covered laterally (in the transverse direction CD) by the global ionization field ZI of an ionization module 4 (ionizing bar 4a + ionizing brush). adjacent 4b).
  • each ionizing field (ZI) generated by an ionization module 4 extends laterally (direction CD) at least to the longitudinal edge B closest to the nonwoven web W2 or W3, and preferably covers said longitudinal edge as illustrated in
  • each ionization module 4 is preferably inclined a slight angle A with respect to the transport direction of the nonwoven web so as to ensure that the generated ionizing field covers the corresponding longitudinal edge B of the nonwoven web.
  • the angle A is less than 45 ° and depends, for a given length of a module ionization 4, the width of the ionization field (transverse direction CD) that it is desired to generate at the level of the transport surface.
  • the ionization means 4 make it possible to generate negative ions near the surface of the non-woven strip (W2 or W3) and locally in a longitudinal zone of small width. relative to the width L of the nonwoven web.
  • the transport surface 2 is made of an electrically conductive material, and acts as a mass.
  • the nonwoven webs W1, W2 (and indeed W3) consist of fibers forming a dielectric material. These are, for example, synthetic fibers based on polypropylene or polyethylene, and / or natural fibers of the cotton type, and / or artificial fibers of the viscose type.
  • the negative ions generated by the ionization means 4 thus making it possible to electrostatically charge the strips of nonwoven W2 and W3 upstream and downstream of the transfer roller 3, in localized longitudinal zones of small width (I) with respect to the width L of the nonwoven web (the dimensions I and L are measured in the transverse direction CD perpendicular to the direction of transport of the nonwoven web).
  • These longitudinal retention zones ZM of small width I are shown schematically by hatching in FIG. 2.
  • the width I of the zone is of the order of a few centimeters or tens of centimeters, and generally represents less than 1/10 of the width L of the nonwoven web.
  • these narrow width maintenance zones ZM (I) extend laterally (direction CD) at least to the longitudinal edges B of the nonwoven web (see FIG. 3).
  • the selvedges of the nonwoven web W2 electrostatically adhere to the transport surface 2 from a point (FIG. 2 / abscissa X1) upstream of the transfer member 3 to the region of reunification of the webs.
  • nonwoven W1 and W2 ( Figure 2 / X2 abscissa).
  • the selvedges of the nonwoven web W3 electrostatically adhere to the transport surface 2a to a holding limit which is located in the transport direction beyond the generated ionizing fields (Fig. 2 / abscissa X3). Indeed, once loaded, the nonwoven web W3 discharges more or less quickly once it leaves the ionizing field. This results in a more or less rapid loss of adhesion downstream of the generated ionizing field.
  • the position of the downstream adhesion limit of the nonwoven web W3 (FIG.
  • the nonwoven web W3 adheres sufficiently to the transport surface 2a at least up to the detour roller 2b, in order to avoid a lifting or reversal of selvedges of the non-woven web when changing direction of transport (MD2 to MD3).
  • the invention it is possible to avoid in a simple and economical manner the problems of turning the non-woven webs in the critical transport regions where they are likely to undergo external air and / or mechanical disturbances (in particular transfer region of a strip from one transport surface to another with, where appropriate, reunification with another nonwoven web, transport direction change region of the nonwoven web).
  • the transport surfaces can indifferently be impermeable or permeable to the air.
  • the invention is not limited to a system allowing a reunification of sail.
  • the invention may be used only at a simple transfer of a nonwoven web from one transport surface to another, and for example, in a configuration of the type of FIG. 1 during the transfer of the nonwoven web W1 between the transport surfaces 1a and 2a, without using a strip of nonwoven W2. In this case, it is not necessary to implement ionization modules 4 upstream of the transfer member 3.
  • the invention can be used only during a simple transport of a band of nonwoven on a transport surface (without transfer and without reunification with another web of nonwoven), for example by removing in the configuration of Figure 1 the upper conveyor 1 and the transfer member 3, and retaining only the transport surface 2a, the nonwoven web W2 and all or part of the ionization modules 4.
  • the solution which has just been described finds mainly (but not exclusively) its application to the transport of an unbound nonwoven web and / or a nonwoven web of low weight, this type of non-woven web. -woven more easily be altered by flipping their edges. Also, this solution is more particularly advantageous for high transport speeds (typically greater than 150 m / min), for which the selvedge reversal phenomena are amplified.
  • FIGS. 4 to 6 differs from the variant of FIGS. 1 to 3 which has just been detailed solely in that the ionizing bars 4a have been replaced by an equivalent means in the form of a plurality of ionization brushes 4b. juxtaposed and substantially aligned along the main axis of ionization 4c.
  • the width L of the two nonwoven webs W1 and W2 is substantially identical. This is not limiting of the invention, the widths of the two strips of nonwoven W1 and W2 may be different.
  • each ionizing bar makes it possible to generate a longitudinal ionization field ZI of main ionization axis 4c, near and above the nonwoven strip W, so that the fibers of the nonwoven strip adhere at the transport surface 5 only in a ZM longitudinal retention zone of small width I, with respect to the width L of the nonwoven web.
  • the two ionizing bars 4a are oriented so that their main ionization axis 4c is substantially parallel to the transport direction (MD) and are positioned above the nonwoven strip and set back from the longitudinal edges B1 (before cutting), so that the two electrostatic holding zones ZM are spaced in the transverse direction CD by a distance (e) less than the width L of the non-woven strip and especially do not extend to longitudinal edges B1 of the strip (before cutting).
  • the vacuum cutting nozzle 6 has a suction opening 6a which is positioned above the edge LI of the strip to be removed and is directed towards said selvedge, and suction means (fan) for creating through said opening 6a a flow of air perpendicular to the transport surface 5a (Figure 7 / arrows F).
  • the suction aperture extends in the transverse direction CD from substantially the outer longitudinal boundary 4d of the ionization field ZI to at least the longitudinal edge B1 (before cutting) of the nonwoven web W.
  • the nozzle 6 of suction cutting is equipped with a vertical plate 6c ( Figure 3) to better confine the suction flow F outside the ionizing field (ZI) .
  • the ionizing bars 4a and the suction cutting nozzles 6 are active, and the transport surface 5a scrolls the nonwoven web in the transport direction MD, below the ionizing bars 4a and nozzles 6.
  • the constituent fibers of the outer portion of the nonwoven web W corresponding to an edge LI do not adhere (or very little) to the transport surface 5a. These fibers are thus very easily removed by suction and discharged by each nozzle 6.
  • the fibers of the nonwoven web, which adjoin the suction nozzle 6 but which are located in the ionizing field ZI adhere strongly to the transport surface 5a, which advantageously allows to obtain a perfect retention of the nonwoven web against the transport surface 5a during the cutting operation by suction edges LI.
  • the ionizing bars 4a could be replaced by any equivalent ionization means, and for example by a plurality of ionizing devices, of the type of ionizing brushes described in the first application above, substantially aligned in the MD transport direction.
  • the ionizing bars 4a could also be slightly inclined at an angle A with respect to the transport direction MD.
  • FIG. 9 shows another variant embodiment in which the ionization module 4 consists of two ionizing bars 4a aligned in the transverse direction CD.
  • the main ionization axis 4c of the ionization module 4 extends substantially perpendicularly to the direction of transport (MD), the essential in this application (as in the application below of FIG. 10) being that the electrostatic holding zone (s) ZM do not extend to the longitudinal edges B1 (before cutting) of the nonwoven web W.
  • FIG. 10 concerns a vacuum cutting system with LI edge profiling of an unbound nonwoven web W.
  • the system differs from the aforementioned cutting systems of Figures 7 to 9 only by the lateral position of each nozzle 6 in the transverse direction CD.
  • part of the suction opening 6a is disposed in the ionizing field ZI (i.e. right of the fibers adhering to the transport surface 5) and the other part of the suction opening 6a is disposed outside the ionizing field ZI.
  • This technical solution for profiling the edges of a non-woven non-woven fabric is particularly useful in the nap, that is to say in all applications where the non-woven non-woven web W feeds a crosslapper in order to forming a nonwoven web by turning and folding the nonwoven web around itself.
  • the transport surfaces are flat. This is not limiting of the invention. In other applications of the invention, the transport surfaces may be curved, and in particular cylindrical.
  • the adhesion of the nonwoven web to the transport surface is obtained by electrostatically charging the nonwoven web.
  • the same adhesion effect can be obtained by electrostatically charging only the transport surface.
  • the same adhesion effect can be obtained by electrostatically charging both the transport surface and the nonwoven web, but with opposite polarities.

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  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
EP06370005A 2005-03-18 2006-03-06 Method and device of transporting a non-woven web with electrostatic charge in at least an area with a dimension smaller than the width of said web Active EP1702874B8 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0502675A FR2883267B1 (fr) 2005-03-18 2005-03-18 Procede et systeme de transport d'une bande de non-tisse avec maintien electrostatique dans au moins une zone de dimension inferieure a la largeur de ladite bande

Publications (4)

Publication Number Publication Date
EP1702874A2 true EP1702874A2 (de) 2006-09-20
EP1702874A3 EP1702874A3 (de) 2007-05-30
EP1702874B1 EP1702874B1 (de) 2011-07-27
EP1702874B8 EP1702874B8 (de) 2012-02-29

Family

ID=35311519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06370005A Active EP1702874B8 (de) 2005-03-18 2006-03-06 Method and device of transporting a non-woven web with electrostatic charge in at least an area with a dimension smaller than the width of said web

Country Status (3)

Country Link
EP (1) EP1702874B8 (de)
CN (1) CN1834324B (de)
FR (1) FR2883267B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1777187B1 (de) * 2005-10-19 2010-12-29 Asselin-Thibeau Verfahren und Anordnung zur Bildung einer Bahn aus mehrschichtigem Vliesstoff mit elektrostatischem Halten dieser Bahn aus Vliesstoff
WO2011083037A1 (de) 2010-01-08 2011-07-14 Fecken-Kirfel Gmbh & Co. Kg Vorrichtung zum spalten von schaumstoffkörpern

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2077235A (en) * 1980-05-06 1981-12-16 Spengler Walter Facilitating the opening of folded signatures for collation
FR2667267A1 (fr) * 1990-09-27 1992-04-03 Mira Sarl Dispositif d'assistance electrostatique pour la conception de fascicules, cahiers ou analogues.
WO1998043904A1 (de) * 1997-04-02 1998-10-08 Eltex-Elektrostatik Gmbh Verfahren und vorrichtung zum elektrostatischen aufladen
EP1285875A1 (de) * 2000-05-16 2003-02-26 Spengler Electronic AG Vorrichtung zum Vereinigen von mindestens zwei Papierbahnen zu einem Papierstrang
US20040020962A1 (en) * 2002-05-17 2004-02-05 Polymer Group, Inc. Conveyor for inverting web of material

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2815646B1 (fr) * 2000-10-20 2003-01-10 Rieter Perfojet Installation de production d'une nappe non tissee dont le diffuseur est a distance du dispositif a fente d'etirage
DE10140864A1 (de) * 2001-08-21 2003-03-06 Truetzschler Gmbh & Co Kg Vorrichtung zum Vernadeln eines förderbaren Faservlieses

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2077235A (en) * 1980-05-06 1981-12-16 Spengler Walter Facilitating the opening of folded signatures for collation
FR2667267A1 (fr) * 1990-09-27 1992-04-03 Mira Sarl Dispositif d'assistance electrostatique pour la conception de fascicules, cahiers ou analogues.
WO1998043904A1 (de) * 1997-04-02 1998-10-08 Eltex-Elektrostatik Gmbh Verfahren und vorrichtung zum elektrostatischen aufladen
EP1285875A1 (de) * 2000-05-16 2003-02-26 Spengler Electronic AG Vorrichtung zum Vereinigen von mindestens zwei Papierbahnen zu einem Papierstrang
US20040020962A1 (en) * 2002-05-17 2004-02-05 Polymer Group, Inc. Conveyor for inverting web of material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1777187B1 (de) * 2005-10-19 2010-12-29 Asselin-Thibeau Verfahren und Anordnung zur Bildung einer Bahn aus mehrschichtigem Vliesstoff mit elektrostatischem Halten dieser Bahn aus Vliesstoff
WO2011083037A1 (de) 2010-01-08 2011-07-14 Fecken-Kirfel Gmbh & Co. Kg Vorrichtung zum spalten von schaumstoffkörpern
DE102010004205A1 (de) 2010-01-08 2011-07-14 Fecken-Kirfel GmbH & Co. KG, 52070 Vorrichtung zum Spalten von Schaumstoffkörpern
DE102010004205B4 (de) * 2010-01-08 2012-11-08 Fecken-Kirfel Gmbh & Co. Kg Vorrichtung und Verfahren zum Spalten von Schaumstoffkörpern

Also Published As

Publication number Publication date
CN1834324B (zh) 2012-04-25
EP1702874B8 (de) 2012-02-29
EP1702874B1 (de) 2011-07-27
CN1834324A (de) 2006-09-20
EP1702874A3 (de) 2007-05-30
FR2883267B1 (fr) 2007-06-08
FR2883267A1 (fr) 2006-09-22

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