EP1595980B1 - Procédé et dispositif de production d'un non-tissé - Google Patents

Procédé et dispositif de production d'un non-tissé Download PDF

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Publication number
EP1595980B1
EP1595980B1 EP04008217A EP04008217A EP1595980B1 EP 1595980 B1 EP1595980 B1 EP 1595980B1 EP 04008217 A EP04008217 A EP 04008217A EP 04008217 A EP04008217 A EP 04008217A EP 1595980 B1 EP1595980 B1 EP 1595980B1
Authority
EP
European Patent Office
Prior art keywords
card web
card
lapper
sheets
cross
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP04008217A
Other languages
German (de)
English (en)
Other versions
EP1595980A1 (fr
Inventor
Johann Philipp Dipl.-Ing. Dilo
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.)
Oskar Dilo Maschinenfabrik KG
Original Assignee
Oskar Dilo Maschinenfabrik KG
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 Oskar Dilo Maschinenfabrik KG filed Critical Oskar Dilo Maschinenfabrik KG
Priority to DE502004004186T priority Critical patent/DE502004004186D1/de
Priority to AT04008217T priority patent/ATE365821T1/de
Priority to EP04008217A priority patent/EP1595980B1/fr
Publication of EP1595980A1 publication Critical patent/EP1595980A1/fr
Application granted granted Critical
Publication of EP1595980B1 publication Critical patent/EP1595980B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • 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
    • D04H1/74—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 orientated, e.g. in parallel (anisotropic fleeces)
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G25/00—Lap-forming devices not integral with machines specified above
    • 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
    • D04H13/00—Other non-woven fabrics

Definitions

  • the invention relates to a method and apparatus for producing a fibrous web by superimposing a plurality of batt.
  • nonwoven formation fibrous webs formed on cardboards are stacked in several layers to form a nonwoven fabric.
  • the fleece delivered by successive or side-by-side rolls are doubled onto a common conveyor belt.
  • Such a nonwoven is then usually solidified, for example by needling.
  • a fibrous web formed by a carding machine is deposited in a multi-layered manner on a continuously moving delivery conveyor belt transversely to the transport direction thereof with oscillating movements such that the filed webs partially overlap (see, for example, FIG EP-A-0 071 033 ).
  • This widths are achievable, which are basically independent of the width of the supplied fiber web.
  • the fiber layer runs in such a fleece dominating, but not exactly, across the nonwoven web, since the pile is stored zigzag on the delivery conveyor belt.
  • Nonwoven webs with longitudinal orientation of the fibers are desirable in some applications, for example, those in which the nonwoven web should have a pronounced yield strength in the longitudinal direction.
  • the laying member is in the transport direction of the delivery conveyor belt on which the fibrous web is stored, reciprocated while a continuously fed fiber web web coherently stores in mutually overlapping layers, arise U-shaped reversing points from superposed pile layers in the laid nonwoven, which behave unfavorably in a subsequent solidification process, for example by needling, and finally express themselves to transverse ribs in a product needled from the nonwoven fabric.
  • the invention has for its object to provide a method and a suitable for carrying out this nonwoven, can be produced with the nonwoven webs whose stretch properties can be influenced in an excellent manner by the laying process and possibly contain only oriented in a single direction fibers.
  • the invention does not lay down the continuously fed pile coherently, but cuts out of it individual sheet panels which are deposited overlapping in a scale-like pattern.
  • alignment takes place at one of the edges of the Flortafeln.
  • a card web fed transversely to the delivery conveyor belt is cut at right angles to the longitudinal extent of the card web, in which case the alignment takes place at one of the cut edges.
  • the cut-off tile is rectangular, which also includes a square shape.
  • the delivery conveyor belt is moved discontinuously, so that the exactly perpendicular to the formed Nonwoven web extending pile tray is not affected. After depositing a single Flortafel the delivery conveyor belt is moved by one pitch, and then the next Flortafel is filed.
  • the overlap of the Flortafeln is selected so that the pitch is an integer fraction of the dimension of the Flortafel in the overlapping direction, then it is ensured that at all points of the web the same number of pile layers are superimposed. This gives a nonwoven uniform thickness.
  • the laying of the Flortafeln on the delivery conveyor belt in the longitudinal direction of the fiber web opens beyond the possibility in a particularly advantageous manner, the separation of the Flortafeln of the fiber web not by cutting, but perform by locally overstretching the fiber web. There are no sharp dividing lines in this case, so that no sharp transitions between the superimposed pile webs can form within the laid fleece.
  • the separation by cutting can be carried out both in front of the laying member within the web laying machine or at its inlet, but also at the delivery gap of the laying member.
  • the laying member is already supplied with the severed Flortafeln.
  • the Flortafel is cut only after complete deposition on the web in formation from the fiber web. This variant simplifies the control of the cutting process, since it can be synchronized with the reversal of the movement of the laying member.
  • the laying member can deliver in both directions Flor and drop. But it is also possible that the laying organ only active during one of the back and forth running movements, ie to let Flor take off. This may be required in some cases, for example, if the supplied pile is two-ply and the layers differ in their properties and therefore should not be alternately overthrown.
  • two card webs can be used to form the nonwoven, wherein the pile boards originating from them are stored alternately.
  • two laying members are active at the delivery zone of the web laying, which are virtually opposite each other and alternately deposit pile in the delivery zone.
  • the delivery zone of the delivery conveyor belt is assigned two laying members which supply the delivery zone alternately transversely and longitudinally with respect to the longitudinal extent of the delivery conveyor belt with sheet panels. It is understood that for this purpose laying organs of this type must be used, which make the delivery zone for the other laying organ freely accessible in the retracted state.
  • a delivery conveyor belt 1 is shown schematically in plan view, which is associated with a steep-arm leveler 2, which is arranged next to the longitudinal side of the delivery conveyor belt 1.
  • the delivery conveyor belt 1 has a transport direction, which is marked with the arrow A.
  • the steep-arm fleece layer 2 is fed transversely to the transport direction A a card web 3 in the feed direction B, which is perpendicular to the transport direction A of the delivery conveyor belt 1.
  • the steep-arm leveler 2 is by means of a pivotable about a stationary axis 4 Zulitearms and hinged at its upper end devisrms 6 able to deposit pile on the delivery conveyor belt 1.
  • Fig. 1 the orientation of the fibers contained in the fiber web 3 is shown with thin, longitudinal lines. Accordingly, the fibers in a nonwoven web 7 produced on the delivery conveyor belt 1 run transversely to the longitudinal extent of the nonwoven web 7, which is represented by corresponding thin lines in the drawing, as long as the delivery conveyor belt 1 is not moved during the laying movement of the laying arm 6.
  • the fiber within the nonwoven web 7 should have a disturbance of the fiber orientation not impaired by the laying process.
  • the invention therefore provides that of the nonwoven layer 2 on the delivery conveyor belt 1 of the pile is not stored continuously, but in the form of Flortafeln is, which are separated from the card web 3. This separation can be done by means of a cutting device which is arranged either in front of the fleece layer 2, within the same or at the delivery gap of the fleece layer 2, but not shown in the drawing.
  • FIG. 2 shows an embodiment of the invention in which a fleece layer 2 is arranged with respect to the delivery conveyor belt 1 so that it deposits flort boards in the longitudinal direction of the delivery conveyor belt 1, so that a fleece 7 is formed in which the fiber orientation runs in the longitudinal direction
  • the dash-dotted line c in FIG. 2 indicates the position of the ply-end of the pile board laid by the fleece layer 2.
  • the individual pile layers 3 a are stacked on top of each other. Their cut edges can run transversely or obliquely to the delivery conveyor belt 1. Again, in Fig. 2, the cutting device is not shown.
  • FIG. 1 A variant which has already been briefly mentioned is shown in FIG.
  • two steep-arm levelers 2a and 2b are assigned, which feed a pile 31 transversely to the transport direction A of the delivery conveyor belt 1 from direction B and another pile 32 in the transport direction A of the delivery conveyor belt 1 .
  • the fiber layers in the card webs 31 and 32 are again characterized by thin lines, they each extend in the longitudinal direction of the fed fiber webs.
  • the two fleece layers 2a and 2b operate the delivery zone on the delivery conveyor belt 1 alternately.
  • the cross-feeding nonwoven layer 2a has just retracted, while the nonwoven layer 2b working in the longitudinal direction has just been extended.
  • the result of the work of the two nonwoven layers 2a and 2b is in the form of a nonwoven strip 7, in which both transversely and longitudinally extending fibers are present, which is symbolized by intersecting thin lines in the nonwoven web 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Nonwoven Fabrics (AREA)

Claims (17)

  1. Procédé de production d'un non-tissé par superposition de plusieurs voiles de carde, caractérisé en ce que des feuilles de voile séparées d'au moins une nappe de voile de carde de dimensions au moins à peu près égales sont déposées avec alignement sur l'un de leurs bords sur un support en étant superposées en déport mutuel dans la même direction et à distances régulières sous forme d'écailles.
  2. Procédé suivant la revendication 1, caractérisé en ce que le déport mutuel des feuilles de voile est une fraction entière de la dimension d'une feuille dans la direction de déport.
  3. Procédé suivant les revendications 1 et 2, caractérisé en ce que les feuilles de voile sont rectangulaires et sont déposées en déport mutuel transversalement à la direction d'extension de la nappe de voile de carde dont elles proviennent.
  4. Procédé suivant l'une des revendications 1 et 2, caractérisé en ce que les feuilles de voile sont déposées en déport mutuel dans la direction d'extension de la nappe de voile de carde dont elles proviennent.
  5. Procédé suivant l'une des revendications 3 et 4, caractérisé en ce que la séparation des feuilles de voile de la nappe de voile de carde est réalisée par découpe.
  6. Procédé suivant l'une des revendications précédentes, caractérisé en ce que les feuilles de voile ne sont séparées de la nappe de voile de carde qu'après le dépôt sur le non-tissé en cours de production.
  7. Procédé suivant l'une des revendications 1 à 5, caractérisé en ce que les feuilles de voile ne sont chacune déposées sur le non-tissé en cours de formation qu'après leur séparation de la nappe de voile de carde.
  8. Procédé suivant la revendication 4, caractérisé en ce que la séparation des feuilles de voile de la nappe de voile de carde est réalisée par déchirement provoqué par un étirement local excessif de la nappe de voile de carde.
  9. Procédé suivant la revendication 4, caractérisé en ce que les feuilles de voile sont séparées de la nappe de voile de carde par une coupe en oblique par rapport à la direction d'extension de la nappe de voile de carde.
  10. Procédé suivant l'une des revendications précédentes, caractérisé en ce que des feuilles de voile, qui proviennent de deux nappes de voile de carde, sont déposées en alternance en superposition avec un déport mutuel.
  11. Distributeur de voile comprenant une bande transporteuse de sortie (1) et au moins un organe de dépôt (6), auquel est amené un voile de carde (3) et qui présente une fente de distribution mobile sur une zone de sortie de la bande transporteuse (1) pour distribuer le voile de carde, caractérisé en ce qu'un dispositif de séparation, associé à l'organe de dépôt (6), est installé pour séparer des feuilles de voile (3a) à déposer ou déposées par l'organe de dépôt (6) d'une nappe de voile de carde (3) amenée par le distributeur de voile (2).
  12. Distributeur de voile suivant la revendication 11, caractérisé en ce que le dispositif de séparation est un dispositif de coupe.
  13. Distributeur de voile suivant la revendication 12, caractérisé en ce que le dispositif de coupe est disposé sur la fente de sortie de l'organe de dépôt (6).
  14. Distributeur de voile suivant la revendication 11, caractérisé en ce que le dispositif de séparation est disposé en amont de l'organe de dépôt (6).
  15. Distributeur de voile suivant la revendication 11, caractérisé en ce que l'organe de dépôt (6) est mobile en va-et-vient dans la direction de transport de la bande transporteuse de sortie (1) et que le dispositif de séparation est un banc d'étirage de voile.
  16. Distributeur de voile suivant l'une des revendications 11 à 15, caractérisé en ce que deux organes de dépôt sont associés à la zone de sortie de la bande transporteuse (1), lesquels organes sont installés et commandés pour déposer en alternance dans la zone de sortie des feuilles de voile provenant de deux nappes de voile de carde.
  17. Distributeur de voile suivant la revendication 16, caractérisé en ce que les organes de dépôt (6) sont des bras pivotants d'un distributeur à bras inclinés (2).
EP04008217A 2004-04-05 2004-04-05 Procédé et dispositif de production d'un non-tissé Expired - Fee Related EP1595980B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE502004004186T DE502004004186D1 (de) 2004-04-05 2004-04-05 Verfahren und Vorrichtung zum Erzeugen eines Faservlieses
AT04008217T ATE365821T1 (de) 2004-04-05 2004-04-05 Verfahren und vorrichtung zum erzeugen eines faservlieses
EP04008217A EP1595980B1 (fr) 2004-04-05 2004-04-05 Procédé et dispositif de production d'un non-tissé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04008217A EP1595980B1 (fr) 2004-04-05 2004-04-05 Procédé et dispositif de production d'un non-tissé

Publications (2)

Publication Number Publication Date
EP1595980A1 EP1595980A1 (fr) 2005-11-16
EP1595980B1 true EP1595980B1 (fr) 2007-06-27

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ID=34924559

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EP04008217A Expired - Fee Related EP1595980B1 (fr) 2004-04-05 2004-04-05 Procédé et dispositif de production d'un non-tissé

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EP (1) EP1595980B1 (fr)
AT (1) ATE365821T1 (fr)
DE (1) DE502004004186D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130084445A1 (en) 2011-09-30 2013-04-04 Owens Corning Intellectual Capital, Llc Method of forming a web from fibrous material
DE102013109251B3 (de) * 2013-08-27 2014-11-20 MKS GmbH Längsvliesleger und Verfahren zur Herstellung eines Vlieses

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3493452A (en) * 1965-05-17 1970-02-03 Du Pont Apparatus and continuous process for producing fibrous sheet structures
DE19618806A1 (de) * 1995-05-26 1996-11-28 Fehrer Ernst Verfahren und Vorrichtung zum Täfeln eines Vliesbandes
GB9604241D0 (en) * 1996-02-28 1996-05-01 Rockwool Int Production of a lapped product from a web, and apparatus for this

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Publication number Publication date
ATE365821T1 (de) 2007-07-15
DE502004004186D1 (de) 2007-08-09
EP1595980A1 (fr) 2005-11-16

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