EP2758217B1 - Procédé et dispositif de perforation d'un non-tissé au moyen d'un aiguilletage hydrodynamique - Google Patents

Procédé et dispositif de perforation d'un non-tissé au moyen d'un aiguilletage hydrodynamique Download PDF

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Publication number
EP2758217B1
EP2758217B1 EP12759416.6A EP12759416A EP2758217B1 EP 2758217 B1 EP2758217 B1 EP 2758217B1 EP 12759416 A EP12759416 A EP 12759416A EP 2758217 B1 EP2758217 B1 EP 2758217B1
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EP
European Patent Office
Prior art keywords
elevations
woven fabric
perforations
carrier element
liquid
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.)
Active
Application number
EP12759416.6A
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German (de)
English (en)
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EP2758217A2 (fr
Inventor
Florian Seils
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 and Man Made Fibers GmbH
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Truetzschler Nonwovens and Man Made Fibers GmbH
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Priority to PL12759416T priority Critical patent/PL2758217T3/pl
Publication of EP2758217A2 publication Critical patent/EP2758217A2/fr
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Publication of EP2758217B1 publication Critical patent/EP2758217B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/26—Perforating by non-mechanical means, e.g. by fluid jet
    • 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
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • 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
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • D04H1/495—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet for formation of patterns, e.g. drilling or rearrangement
    • 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 device for perforating a nonwoven by means of hydrodynamic needling according to the preamble of claims 1 and a method for perforating a nonwoven by means of hydrodynamic needling according to claim 10.
  • Previously known devices for perforating a nonwoven by means of hydrodynamic needling have at least a first carrier element with a first carrier surface.
  • the first carrier surface has first elevations and first perforations as the drainage opening.
  • the nonwoven to be processed can be placed on the carrier surface.
  • fibers of the nonwoven fabric arranged on the carrier surface are washed down by the elevations, so that perforations are formed in the nonwoven fabric.
  • Heavy nonwovens are often used as geotextiles. These often consist of a hydrophobic material, in particular staple fibers or endless Filaments made of PP or PET. However, in order to use the heavy nonwovens as geotextiles, some of them are additionally equipped with hydrophilic finishes for better drainage of surface water. According to the present invention, instead of the hydrophilic finish, drainage openings are to be introduced into such heavy nonwovens, wherein these drainage openings are to be introduced by means of hydrodynamic needling. This has the advantage that this is a simpler and less expensive process than the equipment with the hydrophilic finish.
  • US 5441691 discloses a continuous, multi-phase process for perforating and embossing a substantially continuous web of substantially planar polymeric film to form a microapertured and microembossed polymeric web.
  • the object of the present invention is to provide a device and a method for perforating a nonwoven fabric and to provide a method for producing a carrier element for a device for perforating a nonwoven, which makes it possible to heavy nonwovens with a basis weight of 70 g / m 2 perforate.
  • the support elements are usually made of stainless sheet metal.
  • the sheet has a relatively high toughness and the increase can only have certain shapes and dimensions.
  • the increase in a stainless sheet can not be introduced by deep drawing. With such a stainless sheet, the height of the ridges may be less than one-half the diameter of the ridges.
  • the advantage is that the sheet is first deep-drawn and thus increases of any shape and height can be produced.
  • the durability of the carrier element is replaced by the coating.
  • the ridges which are introduced into the sheet metal element may each have such a size and shape that a heavy fabric with a basis weight of at least 70 to 260 g / m 2 can be perforated during the hydrodynamic needling of the ridges, so that in the non-woven Perforations with an opening width of at least 4 mm arise.
  • the elevations of the carrier element can have a polygonal, circular, semicircular or oval-shaped cross-sectional shape as base area.
  • the perforations may also have a polygonal, circular, semicircular or oval cross-sectional shape in the nonwoven plane.
  • the shape of the perforations in the fleece depends on the shape of the elevations in the carrier element.
  • the shape of the perforations may additionally be e.g. be dependent on whether the nonwoven upon removal from the support element, e.g. in the transport direction stretches. In this case, oval perforations are formed in the mat, although the elevations of the support element have circular cross-sectional shapes.
  • the opening width is the widest width of the respective opening.
  • the opening width is the diameter.
  • Oval, ie preferably elliptical perforations each have a maximum and a minimum diameter.
  • the opening width is the largest diameter of the oval.
  • the smallest width of the oval perforation is the smallest diameter.
  • the invention advantageously provides that in a device for perforating a nonwoven by means of hydrodynamic needling, a second carrier element is provided which has a second carrier surface with second elevations and second perforations as a drainage opening, wherein on the one hand the elevation of the carrier element have such a distance from one another and on the other hand, the fleece provided with the perforations can be placed on the second carrier element, which project the elevations of the second carrier element into the perforations of the fleece arranged on the second carrier element, wherein at least one second jet bar projects see and wherein the fleece can be acted upon by means of a liquid emerging from the openings of the second nozzle bar under high pressure.
  • the device has the advantage that in particular a heavy fleece with a weight per unit area of at least 70 g / m 2 , preferably at least 100 g / m 2 , can be perforated particularly well.
  • a heavy fleece with a weight per unit area of at least 70 g / m 2 preferably at least 100 g / m 2
  • the nonwoven is perforated again on a second carrier element, wherein the elevations of the second carrier element protrude into the already existing perforations, particularly well-trained and well-defined perforations can be formed in the web. In this way, even very heavy nonwovens up to 260 g / m 2 can be perforated.
  • the nonwoven on the first carrier element can be placed on the first carrier element with a nonwoven upper side, and the nonwoven can be acted upon on a nonwoven underside by means of the liquid emerging from the openings of the first nozzle bellows.
  • the nonwoven fabric can be placed on the second support element with the nonwoven underside and the nonwoven fabric can be acted upon by the nonwoven upper side by means of the liquid emerging from the openings of the second nozzle beam.
  • the shape and the dimension of the respective elevations of the second carrier element can be selected such that the elevations of the second carrier element can protrude into the perforations of the nonwoven which can be placed on the second carrier element.
  • the elevations preferably have a height of at least 3.5 mm.
  • the elevations of the second carrier element must have a certain height, so that when placing the fleece on the second carrier element, the elevations of the second carrier element can protrude into the already existing perforation of the fleece. In this way, the web is again perforated on the second support member at the same locations and the perforations can be made stronger. If the raises of the second carrier element would not protrude exactly into the already existing perforations of the web, so further perforations would be formed in the web and the existing perforations would not be clearly defined perforations.
  • the dimension and the shape of the elevations of the first and the second support member can so be chosen that heavy nonwovens are perforatable in the hydrodynamic needle punching by the elevations having a basis weight of 70 g / m 2, so that in the non-woven perforations having an opening of at least 4 mm, preferably at least 5 mm.
  • the first and the second carrier element can each consist of a sheet metal element and a coating and the elevations in the respective sheet metal element can be introduced by means of deep drawing.
  • the respective sheet metal elements may be coated by means of the coating.
  • the dimensions and the shape of the increase of the first support element are chosen such that a heavy nonwoven with a basis weight of at least 70 g / m 2 is perforated in a hydrodynamic needling through the increase, so that in the nonwoven perforations having an opening width of at least 4 mm, preferably of at least 5 mm, wherein the first carrier element consists of a sheet metal element and a coating and the elevations in the sheet metal element by means of deep drawing can be introduced and coated by the coatings.
  • the dimensions and the shape of the elevations of the first support member can so be chosen such that a heavy fabric with a surface weight of 70 g / m 2 can be perforated during the hydrodynamic needling of the ridges, so that in the non-woven perforations having a smallest width of at least 3 mm.
  • the smallest width of a perforation is the smallest width of the perforation.
  • the smallest width of the perforation is the smallest diameter.
  • the respective sheet metal element may consist of a material having such a toughness that the elevations can be produced by deep drawing.
  • the respective coating may consist of a material that has a higher toughness than the material of the respective sheet metal element.
  • the respective coating may consist of a metal, preferably of nickel.
  • the elevations of the first and / or second carrier element may have a diameter of at least 4 mm, preferably at least 5 mm, and the shape of the elevations may be selected such that a heavy nonwoven having a basis weight of at least 70 g / m 2 , preferably with a basis weight of 100 g / m 2 to 260 g / m 2 , perforable.
  • the height of the elevations of the first and / or second carrier element may correspond to at least half the diameter of the elevations of the first and / or second carrier element.
  • the increase of the first and / or second support element may have a diameter between 5 and 13 mm.
  • the elevations of the first and / or second carrier element may have the form of thorns.
  • the elevations of the first and / or second carrier element may be tapered or frusto-conical.
  • the elevations of the first and / or second carrier element may have a circular, semi-circular, oval, or polygonal cross-sectional shape as base area.
  • the first and / or second carrier element may each be a drum shell of a drum and the respective drum surface may be the surface of the respective drum shell.
  • the first and / or second carrier element may be an endlessly circulating belt.
  • the band can be a flexible metal band.
  • This method has the advantage that even heavy nonwovens can be well perforated, with the perforations being clearly defined.
  • the portion of the nonwoven fibers which have not been rinsed by the first ridges of the first support member upon first application of liquid may be rinsed by the second ridges of the second support member upon second fluid application.
  • the fleece arranged with a fleece top side on the first carrier element can be supplied with liquid from a fleece underside and the fleece provided with perforations and arranged on the second carrier element can be supplied with liquid from a fleece top side.
  • the fleece with the fleece underside is arranged on the carrier element.
  • Perforations with an opening width of at least 5 mm can be produced in the fleece, the perforations having an opening width of at least 4 mm, preferably at least 5 mm, being produced in such a way that the dimensions and the shape of the elevations are chosen such that the Fibers of the nonwoven placed on the ridges upon application of liquid to flush liquid from the ridges.
  • a geotextile can be made by the process of the present invention.
  • the nonwoven produced according to the present invention consists of staple fibers of PP, PET, PA or other polymers or of endless filaments (spunbonded nonwoven) of PP or PET or other polymers.
  • elevations are introduced into the sheet metal element by means of deep drawing.
  • elevations can be introduced into the sheet-metal element which have a height such that perforations can also be introduced into a heavy fleece by means of these elevations.
  • the coating has the advantage that the carrier element having the coating has a longer shelf life.
  • the support elements are usually made of stainless sheet metal.
  • the sheet has a relatively high toughness and the increase can only have certain shapes and dimensions.
  • the increase in a stainless sheet can not be introduced by deep drawing. With such a stainless sheet, the height of the ridges may be less than one-half the diameter of the ridges.
  • the ridges which are introduced into the sheet metal element may each have a dimension and shape such that a heavy nonwoven having a basis weight of at least 70 to 260 g / m 2 is perforable in the hydrodynamic needling by the ridges, so that in the web Perforations with an opening width of at least 4 mm arise.
  • the elevations of the carrier element can have a polygonal, circular, semicircular or oval-shaped cross-sectional shape as base area.
  • the perforations may also have a polygonal, circular, semicircular or oval cross-sectional shape in the nonwoven plane.
  • the shape of the perforations in the fleece depends on the shape of the elevations in the carrier element.
  • the shape of the perforations may additionally be dependent, for example, on whether the nonwoven stretches, for example, in the transport direction when removed from the carrier element. In this case oval perforations occur in the web, although the elevations of the carrier element have circular cross-sectional shapes.
  • the opening width is the widest width of the respective opening.
  • the opening width is the diameter.
  • Ovals, i. preferably elliptical perforations each have a largest and a smallest diameter.
  • the opening width is the largest diameter of the oval.
  • the smallest width of the oval perforation is the smallest diameter.
  • the ridges which are introduced into the sheet metal element may each have a dimension and shape such that a heavy nonwoven having a basis weight of at least 70 to 260 g / m 2 is perforable in the hydrodynamic needling by the ridges, so that in the web Perforations arise whose smallest width has at least 3 mm.
  • the sheet metal element may consist of a material having such a toughness that the elevations in the sheet metal element by means of deep drawing can be introduced, wherein the material is preferably a metal.
  • the sheet metal element has a toughness, in which the elevations are introduced by deep drawing in the sheet metal element, the elevations can be introduced with a simple and inexpensive process in the support element.
  • the sheet metal element may be coated with a material having a higher toughness than the material of the sheet metal element. This has the advantage that the carrier element has a much longer durability.
  • the sheet metal element can be coated with a metal, preferably nickel.
  • the sheet metal element is preferably not made of nickel.
  • Nickel has a too high strength, so that the elevations can not be introduced by deep drawing in the sheet metal element when the sheet metal element consists of nickel.
  • Fig. 1 shows a device 1 for perforating a fleece 26, 28, 34 by means of hydrodynamic needling.
  • a device 1 has at least a first carrier element 12.
  • the carrier element 12 has a carrier surface 14, the first carrier surface 14 having first elevations 8 and first perforations 4 as a drainage opening.
  • FIG. 1 illustrated support member 12 is the drum shell of a drum 16.
  • a nonwoven 22 can be placed on the support member 12 .
  • the ridges 8 and the perforations 4 are in FIG. 1 not shown. These are in the clipping in Fig. 2 shown in more detail.
  • the first carrier element can be designed as a self-supporting drum.
  • the drum may have a base drum 16 on which the first carrier element 12 is applied as an outer layer. This is in Fig. 2 a shown.
  • the drum has a base drum 16 on which a support fabric 17 is arranged and wherein the first support element 12 is arranged on this support fabric. This is in Fig. 2 b shown.
  • the device 1 also has a first nozzle bar 24. There may also be provided further nozzle bars 24 '.
  • the first nozzle bar 24 has openings. From the openings, a liquid, preferably water, is discharged at high pressure. This liquid 30 passes as a liquid jet onto the nonwoven 26 arranged on the carrier element 12.
  • the fibers of the fleece 26, which are located on the elevations 8, are washed down by the elevations 8. In this way, perforations are formed in the web.
  • the liquid 30 then passes through the web and the perforations 4 of the first carrier element 12 used as a drainage opening into the interior of the drum. There, the liquid is removed and can be supplied to the nozzle bar 24 again.
  • FIG. 2 It is shown that the nonwoven 26 is first arranged on the carrier surface 14 of the carrier element 12.
  • the fleece 26 When the fleece 26 is exposed to the liquid 30, fibers which are located on the elevations 8 are washed away by them. This is also in Fig. 2 to recognize. There, the fibers in the right image area are already washed down by the elevations 8. Further, the web 28 provided with perforation 29 is solidified between the ridges 8 by the liquid 30. This goes out Fig. 2 characterized in that the already acted upon with liquid 30 fleece 28 has a smaller thickness than the not yet acted upon with liquid nonwoven 26th
  • the dimension and the shape of the elevations 8 of the first carrier element 12 are preferably selected such that a heavy fleece with a basis weight of at least 70 g / m 2 in the hydrodynamic needling perforated by the elevations 8, so that in the web perforations 29 with an opening width of at least 5 mm.
  • the first carrier element 12 is preferably made of a sheet metal element and a coating and the elevations are introduced by deep drawing in the sheet metal element and coated by the coating. This will be more in-depth with regard to Fig. 5 described.
  • FIG. 3 Another device for perforating a nonwoven fabric by hydrodynamic needling is shown.
  • the device 3 has the same as the device 1 from Fig. 1 a first carrier element 12, which is the support element 12 from Fig. 1 equivalent. Further, the same as in the device 1 from Fig. 1 a fleece 28 provided with perforations 29 is produced on the first carrier element 12 by application of a liquid 30.
  • the device according to Fig. 3 further comprises a second support member 40 having a second support surface 42 with second elevations 8 'and second perforations 4'.
  • the perforations 4 ' are also used as a drainage opening.
  • the elevations 8 'of the second carrier element 40 have such a distance from one another and the fleece 28 provided with the perforations 29 can be placed on the second carrier element 40 such that the elevations 8' of the second carrier element 40 into the perforations 29 of the second Carrier element 40 arranged fleece 28 protrude.
  • the elevations 8 'of the second carrier element preferably also have the same shape as the elevations of the first carrier element 12.
  • the decisive factor is the distance between the elevations 8'. This is preferably the same as the distance between the elevations 8 of the first carrier element 12.
  • the distance in the axis-parallel direction between the second elevation is the same as the distance in the axis-parallel direction between the first elevations.
  • the perforated nonwoven 28 can be transported from the first support member 12 to the second support member 40 and are arranged on the formed as a drum support member 40 that the elevations 8 'of the second support member 40 project into the perforations 29 of the web 28.
  • the second support member 40 is formed as a drum 44 and rotates in the direction of rotation 46 and transports the perforated fleece 28 in the transport direction 22nd
  • the web 26 is pre-consolidated before being transported to the first carrier element 12 by means of liquid emerging from nozzle bar 30.
  • the shape and the dimension of the elevations 8 'of the second carrier element 40 may be selected such that the elevations 8' of the second carrier element 40 are hineinragbar in the perforations 29 of the placed on the second support member 40 fleece 28, wherein the elevations 8 'is preferably a Have height that corresponds to about half the diameter of the increase, with a diameter of 7 mm, for example chosen a height of 3.5 mm.
  • the elevations of the first and / or second carrier element 12, 40 may have a width or a diameter of 5 to 15 mm.
  • the elevations 8, 8 'of the first and the second support element 12, 40 may have the form of thorns. Further, they may be tapered or frustoconical.
  • the base of the elevations 8 and 8 ' can be a circular, semicircular, oval or polygonal cross-sectional shape.
  • Fig. 4 is a plan view of the second support member 40 of an embodiment shown.
  • the second elevations 8 'and the perforations 4' and 4 "are shown, and the perforations 4" are larger than the perforations 4 '.
  • the elevation 8 ' is surrounded by perforations 4'.
  • the cross-sectional shape of the elevation 8 ' is circular.
  • the web 26 is first transported on the belt 50 with the fleece base and is applied to the non-woven top side with the liquid 30 and pre-consolidated. Then, the nonwoven fabric 26 is placed on the first support member 12 with the nonwoven upper side, and the nonwoven lower surface is charged with the liquid 30.
  • the fleece is transported to the second carrier element 40 and placed with the nonwoven underside on the support member 40 and applied to the nonwoven upper side with the liquid 30. In this way, the perforations are made by applying a liquid from both sides of the mat. In this way, more accurately shaped perforations can be made in the web.
  • a method for producing a carrier element 12, 40 for a device 1, 3 for perforating a nonwoven fabric with hydrodynamic needling is shown.
  • step I a sheet metal element 2 is produced.
  • perforations 4, 4 ', 4 are introduced into the sheet metal element 2.
  • the perforations 4, 4', 4" can all have the same size. However, different sizes may be provided.
  • step III the elevations 8 and 8 'are introduced into the sheet metal element 2 by deep drawing.
  • a thermoforming punch 6 is pressed into the sheet and the sheet 2 is stretched at this point.
  • the process step III can also be carried out before or at the same time as process step II.
  • the height of the elevation 8, 8' is preferably equal to the diameter of the elevations 8, 8 '.
  • the sheet metal element 2 is provided with a coating 10.
  • Fig. 5 It is shown that the coating 10 is applied to the entire sheet metal element 2. It can only partially, z. B. on the ridges 8, 8 'are applied.
  • a sheet with a thickness between 1 and 2 mm It is preferably used a sheet with a thickness between 1 and 2 mm. Further, deep-drawing punches with a diameter of 3 to 10 mm are used. For example, with a punch of 3 mm diameter and a sheet of 1 mm thickness, protrusions having a diameter of 5 mm and a height of about 2.5 mm are produced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Nonwoven Fabrics (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Finger-Pressure Massage (AREA)

Claims (14)

  1. Dispositif (1, 3) de perforation d'un non-tissé (26, 28, 34) au moyen d'un aiguilletage hydrodynamique, avec
    - un premier élément de support (12), qui présente une première surface de support (14), dans lequel la première surface de support (14) présente des premières élévations (8) et des premières perforations (4) en tant qu'ouvertures de drainage et dans lequel le non-tissé à traiter (26) peut être placé sur la première surface de support (14),
    - au moins une première barre de buse (24, 24'), qui présente des ouvertures, dans laquelle des fibres du non-tissé (26) agencé sur la première surface de support (14), qui sont agencées sur les premières élévations de la première surface de support (14), peuvent être rincées des élévations (8) au moyen d'un fluide (30) sortant sous haute pression des ouvertures de la première barre de buse (24, 24'), de sorte que des perforations (29) apparaissent dans le non-tissé (28),
    caractérisé en ce
    - qu'un second élément de support (40) est prévu, qui présente une seconde surface de support (42) avec des secondes élévations (8') et des secondes perforations (4', 4") en tant qu'ouvertures de drainage,
    - dans lequel d'un côté les élévations (8') du second élément de support (40) présentent une telle distance l'une par rapport à l'autre et d'un autre côté le non-tissé (28) doté de perforations (29) peut être placé sur le second élément de support (40) de sorte que les élévations (8') du second élément de support (40) pénètrent dans les perforations (29) du non-tissé (28) agencé sur le second élément de support (40),
    - dans lequel au moins une seconde barre de buse (36, 36') est prévue et dans lequel le non-tissé (28) peut être sollicité au moyen d'un fluide (30) sortant sous haute pression des ouvertures de la seconde barre de buse (36, 36').
  2. Dispositif (1, 3) selon la revendication 1, caractérisé en ce que le non-tissé (26) peut être placé sur le premier élément de support (12) avec un côté supérieur de non-tissé et le non-tissé (26) peut être sollicité sur un côté inférieur de non-tissé au moyen du fluide sortant des ouvertures de la première barre de buse (24, 24') et dans lequel le non-tissé (28) peut être placé sur le second élément de support (40) avec le côté inférieur de non-tissé et le non-tissé (28) peut être sollicité sur le côté supérieur de non-tissé au moyen du fluide sortant des ouvertures de la seconde buse de barre (36, 36').
  3. Dispositif (1, 3) selon la revendication 1 ou 2, caractérisé en ce que la forme et la dimension des élévations respectives (8') du second élément de support (40) sont sélectionnées de sorte que les élévations (8') du second élément de support (40) peuvent pénétrer dans les perforations (29) du non-tissé (28) pouvant être placé sur le second élément de support (40), dans lequel les élévations (8') présentent de préférence une hauteur qui correspond au moins au demi-diamètre des élévations (8').
  4. Dispositif (1, 3) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les dimensions et la forme des élévations (8, 8') du premier et du second élément de support (12, 40) sont sélectionnées de sorte qu'un non-tissé lourd (26, 28, 34) avec un grammage d'au moins 70 g/m2 peut être perforé lors de l'aiguilletage hydrodynamique par les élévations (8, 8') de sorte que des perforations (29) avec une largeur d'ouverture d'au moins 4 mm apparaissent dans le non-tissé (26, 28, 34).
  5. Dispositif (1, 3) selon l'une quelconque des revendications 1 à 4
    caractérisé en ce
    - que les dimensions et la forme des élévations (8) du premier élément de support (12) sont sélectionnées de sorte qu'un non-tissé lourd (26, 28, 34) avec un grammage d'au moins 70 g/m2 peut être perforé lors de l'aiguilletage hydrodynamique par les élévations (8) de sorte que des perforations (29) avec une largeur d'ouverture d'au moins 4 mm apparaissent dans le non-tissé (28),
    - dans lequel le premier élément de support (12) se compose d'un élément de tôle (2) et d'un revêtement (10) et les élévations (8) peuvent être introduites dans l'élément de tôle (2) par emboutissage et sont revêtues au moyen du revêtement (10).
  6. Dispositif (1, 3) selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'élément de tôle (2) respectif se compose d'un matériau, qui présente une telle résistance que les élévations (8, 8') peuvent être fabriquées par emboutissage.
  7. Dispositif (1, 3) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le revêtement (10) respectif se compose d'un matériau, qui présente une plus grande résistance que le matériau de l'élément de tôle (2) respectif.
  8. Dispositif (1, 3) selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le revêtement (10) respectif se compose de métal, de préférence de nickel.
  9. Dispositif (1, 3) selon l'une quelconque des revendications 1 à 8, caractérisé en ce que les élévations (8, 8') du premier et/ou second élément de support (12, 40) présentent un diamètre d'au moins 4 mm et la forme des élévations (8, 8') est sélectionnée de sorte qu'un non-tissé lourd (26, 28, 34) avec un grammage d'au moins 70 g/m2, de préférence un grammage de 100 g/m2 à 260 g/m2, peut être perforé.
  10. Procédé de perforation d'un lourd (26, 28, 34) avec un grammage d'au moins 70 g/m2 par
    - pose d'un non-tissé (26) avec un grammage d'au moins 70 g/m2 sur une première surface de support (14) d'un premier élément de support (12), dans lequel la première surface de support (14) présente des premières élévations (8) et des premières perforations (4) en tant qu'ouvertures de drainage,
    - génération de perforations dans le non-tissé (28) par une première sollicitation du non-tissé (26) pouvant être placé sur la première surface de support (14) avec un fluide (30) sous haute pression, dans lequel au moins une partie des fibres du non-tissé (26), qui sont placées lors de la sollicitation avec le fluide (30) sur les élévations, sont rincées des élévations (8) par le fluide (30) et ainsi des perforations (29) apparaissent dans le non-tissé (28),
    - pose du non-tissé (28) doté des perforations (29) sur une seconde surface de support (42) d'un second élément de support (40), dans lequel la seconde surface de support (14) présente des secondes élévations (8') et des secondes perforations (4', 4") en tant qu'ouvertures de drainage, dans lequel d'un côté les secondes élévations (8') sont espacées l'une de l'autre et le non-tissé (28) doté de perforations (29) est placé sur la seconde surface de support (42) de sorte que les élévations (8') pénètrent dans les perforations (29),
    - seconde sollicitation du non-tissé (28) placé sur la seconde surface de support (42) avec un fluide (30) sous haute pression.
  11. Procédé selon la revendication 10, caractérisé en ce que lors de la seconde sollicitation avec un fluide (30), la partie des fibres du non-tissé (28), qui n'ont pas été rincées des premières élévations (8) lors de la première sollicitation avec un fluide (30), sont rincées des secondes élévations (8').
  12. Procédé selon la revendication 10 ou 11, caractérisé en ce que le non-tissé (26) agencé avec un côté supérieur de non-tissé sur le premier élément de support (12) est sollicité par un côté inférieur de non-tissé avec un fluide (30) et le non-tissé (28) doté de perforations (29) et agencé sur le second élément de support (40) est sollicité par un côté supérieur de non-tissé avec un fluide (30).
  13. Procédé selon l'une quelconque des revendications 10 à 12, caractérisé en ce que des perforations (29) avec une largeur d'ouverture d'au moins 4 mm sont générées dans le non-tissé (34), dans lequel les perforations (29) avec une largeur d'ouverture d'au moins 4 mm sont générées par le fait que les dimensions et la forme des élévations (8, 8') sont sélectionnées de sorte que les fibres du non-tissé (26, 28), qui sont placées lors de la sollicitation avec le fluide (30) sur les élévations, sont rincées des élévations (8, 8') par le fluide (30).
  14. Procédé selon l'une quelconque des revendications 10 à 13, caractérisé en ce qu'un géotextile est fabriqué.
EP12759416.6A 2011-09-20 2012-09-11 Procédé et dispositif de perforation d'un non-tissé au moyen d'un aiguilletage hydrodynamique Active EP2758217B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12759416T PL2758217T3 (pl) 2011-09-20 2012-09-11 Sposób i urządzenie do perforowania włókniny za pomocą igłowania hydrodynamicznego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011113672A DE102011113672A1 (de) 2011-09-20 2011-09-20 Verfahren und Vorrichtung zum Perforieren eines Vlieses mittels hydrodynamischer Vernadelung
PCT/EP2012/067690 WO2013041403A2 (fr) 2011-09-20 2012-09-11 Procédé et dispositif de perforation d'un non-tissé au moyen d'un aiguilletage hydrodynamique

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EP2758217A2 EP2758217A2 (fr) 2014-07-30
EP2758217B1 true EP2758217B1 (fr) 2019-12-04

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CN (1) CN103813890B (fr)
DE (1) DE102011113672A1 (fr)
IL (1) IL231559A0 (fr)
IN (1) IN2014CN02057A (fr)
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DE102018100374A1 (de) * 2017-01-09 2018-07-12 herotec GmbH Flächenheizung Verlegevorrichtung für Kühl- oder Heizmedium führende Rohre einer Flächentemperiervorrichtung
JP6462758B2 (ja) * 2017-04-19 2019-01-30 ユニ・チャーム株式会社 スパンレース不織布
CN108374239B (zh) * 2018-02-06 2020-06-30 杭州萧山凤凰纺织有限公司 一种复合提花水刺非织造布的制备方法
DE202018107163U1 (de) * 2018-12-14 2020-03-13 Autefa Solutions Germany Gmbh Strahlsaugkasten

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JPS58132155A (ja) * 1982-01-31 1983-08-06 ユニ・チヤ−ム株式会社 模様を有する不織布の製造方法
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Publication number Publication date
DE102011113672A1 (de) 2013-03-21
CN103813890B (zh) 2016-02-10
WO2013041403A2 (fr) 2013-03-28
PL2758217T3 (pl) 2020-06-29
IL231559A0 (en) 2014-04-30
US20140215780A1 (en) 2014-08-07
IN2014CN02057A (fr) 2015-05-29
EP2758217A2 (fr) 2014-07-30
WO2013041403A3 (fr) 2013-07-25
CN103813890A (zh) 2014-05-21

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