WO2017037273A1 - Dispositif de gaufrage - Google Patents

Dispositif de gaufrage Download PDF

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Publication number
WO2017037273A1
WO2017037273A1 PCT/EP2016/070788 EP2016070788W WO2017037273A1 WO 2017037273 A1 WO2017037273 A1 WO 2017037273A1 EP 2016070788 W EP2016070788 W EP 2016070788W WO 2017037273 A1 WO2017037273 A1 WO 2017037273A1
Authority
WO
WIPO (PCT)
Prior art keywords
embossing
web
counter
embossing device
fluid flow
Prior art date
Application number
PCT/EP2016/070788
Other languages
German (de)
English (en)
Inventor
Michael Niklaus
Original Assignee
Autefa Solutions Germany 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 Autefa Solutions Germany Gmbh filed Critical Autefa Solutions Germany Gmbh
Priority to EP21212756.7A priority Critical patent/EP4001486A1/fr
Priority to EP16766871.4A priority patent/EP3344810B8/fr
Publication of WO2017037273A1 publication Critical patent/WO2017037273A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • 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

Definitions

  • Embossing device The invention relates to an embossing device with the
  • Embossing devices with embossing rollers are known from practice, which are based on a cooled web of a textile fiber material, in particular a nonwoven web.
  • the invention solves this problem with the features in the main claim.
  • Embossing device and the embossing process can be more efficient in terms of function and quality of the embossing process
  • Embossing process and construction and energy costs are achieved. Embossing can be done for different purposes, e.g. for solidifying and possibly perforating the web or for decoration purposes.
  • the web preferably consists of a textile
  • Fiber material e.g. may be a nonwoven nonwoven fabric.
  • the web is embossed by a stamping tool with fluidic underpressure and / or fluidic overpressure.
  • the web can be
  • the embossing tool has an embossing body with a perforated body shell, against which the material web rests.
  • the fluidic pressure can act here from the inside of the embossing body and / or from the outside.
  • the fluidic Pressure or the fluid flow moves the applied web portion in the underlying through hole of the body shell and deforms this web area while plastic and durable to form a local bead or a dome.
  • a sharp, in particular jet-like, and possibly very hot fluid flow is suitable for a perforation of the e.g.
  • a nozzle or aperture opening of the overpressure device can emit a thin, preferably hot, fluid flow which perforates a region of the material web which has already been deformed, if necessary.
  • the embossing body may have any suitable shape and is preferably designed as a rotating embossing roller. At the perforation of the body shell, the web material is drawn locally into the interior of the embossing body or the body shell and thereby deformed and solidified.
  • the perforated body shell is preferably smooth-walled on the outside directed to the web.
  • the fluid flow used for fluidic embossing in particular gas flow, can have a lower temperature than the applied web, in particular the
  • pressurized or through-flow web area have. This temperature difference is favorable for the formation and solidification of the local deformation.
  • the said fluid flow can have the same or higher temperature than the applied web, whereby a cooling of the web is delayed and its plastic deformability is maintained longer. This can be advantageous for a multi-stage embossing deformation and / or for a subsequent perforation be .
  • a negative pressure applied to the embossing body can be sufficient from a preferably controllable negative pressure source, in particular a suction device.
  • a controllable negative pressure source in particular a suction device.
  • controllable overpressure source in particular one
  • Blowing device act. This can be a
  • Embossing body and the product web there are directed, which causes or supports the said deformation of the web in the perforation of the embossing body.
  • an overpressure or an overpressure source in particular a blowing device, can be present.
  • a counter body which bears against the free outer side of the web, so that the web between the embossing body and the counter body can be held at a contact point and possibly clamped.
  • the counter body may be formed on the outside smooth-walled. He can also punch
  • Fluid flow from the counter body through the web into the embossing body This can ensure a particularly favorable and permanent deformation of the web.
  • a counter-body is also for a purposeful
  • the vacuum and / or overpressure source can be arranged separately or possibly also connected to a circulation device.
  • the said fluid flow can be guided in the circulation and possibly also processed.
  • the fluid flow can be conditioned as required, for example in terms of temperature and / or humidity.
  • the embossing body can be assigned one or more counter-body. In a multiple arrangement, the counter-body may be the same or different. You can, for example, a different perforation,
  • Web are generated.
  • decorative or other effects can be achieved in addition to the consolidation of the web.
  • the claimed embossing technique can be inside or
  • thermo-consolidation of the web outside a heating device, in particular a furnace, are carried out for thermo-consolidation of the web.
  • the preferred embossing outside and close to the heater has the advantage that in the
  • Web existing heat and temperature can be used to achieve a plastic and permanent deformation of the web and the fiber material contained during embossing.
  • a temperature difference between the web and the embossing tool may be advantageous.
  • the temperature difference can be optimized as well as controlled and regulated.
  • the claimed embossing technique is particularly suitable for a continuously moving web.
  • cylindrical embossing body and possibly a correspondingly formed, preferably cylindrical, counter body is of particular advantage. Furthermore, synchronized drives for the said embossing and counter-body or a common drive are favorable.
  • the embossing device can be an independent structural unit, which is a heating device for the web, e.g. a thermobonding furnace, can be assigned. This can be done by original equipment or retrofitting or
  • a positioning device is advantageous for the spatial assignment.
  • the embossing device can also with the heater to a
  • Heat treatment device can be combined.
  • the embossing device can be arranged very close to the heating device, in particular at this heating device
  • heating device in particular temperature (s)
  • embossing device saves energy as well as space and construction costs.
  • a larger distance between the heater and embossing device is possible, with an additional heating means may be interposed.
  • a detection device for process parameters, in particular temperature (s) allows optimal control of the
  • Embossing process To the embossing device can connect a cooling line of any kind.
  • a cooling line of any kind To the embossing device can connect a cooling line of any kind.
  • Solidification of the web can be achieved. This also brings advantages with the guidance and the transport of the Web with itself.
  • the web can be through the
  • a particular advantage of the claimed embossing technique is the ability to increase performance and increase the speed of the moving web.
  • embossing rollers have a significantly reduced efficiency and efficiency.
  • the heat input from the embossing roller in the web takes a certain amount of time, which significantly reduces the possible web speed.
  • Figure 1 a schematic representation of a
  • Heat treatment device Figure 2: a variant of the fiber treatment plant of
  • FIG. 1 A first figure.
  • Figure 3 a broken view of a
  • FIG. 4 a fragmentary and enlarged
  • Figure 5 a variant of a pair of rollers
  • FIG. 6 shows a variant of the embossing device of FIGS. 3 and 4.
  • the invention relates to a stamping device (4) and a stamping method for a web (2).
  • the invention further relates to a heat treatment device (1), which is formed by an embossing device (4) and a heating device (3) and a heat treatment process.
  • the invention also relates to a
  • Heat treatment device (1) also includes an in the fiber treatment plant (29)
  • the web (2) consists in the shown
  • Embodiments of a textile fiber material is a nonwoven fibrous material, e.g. a nonwoven fiber fleece.
  • Fiber material is preferably short
  • the fibers may be synthetic fibers, in particular so-called BiCo fibers or two-component fibers. Alternatively, natural fibers or fiber mixtures are possible.
  • Figures 1 and 2 show variants of a
  • entrance side pile fabricators (30) e.g. a card or carding machine or an airlay machine
  • a single-ply or multi-ply fiber web is produced which forms the web (2) at an early stage.
  • the batt is then fed to a leveler (31), e.g. a cruciate ligament player,
  • Heating device (3) are thermally solidified. This process is also called thermobonding.
  • the heated fibers in the web (2) melt at least partially and adhere to each other or connect
  • the moving in the transport direction (25) hot web (2) passes through an embossing device (4), in which the web (2) is subjected to a mechanical embossing process, the fluidic negative pressure and / or overpressure in the manner described below
  • impressions can be introduced into the web (2).
  • the web (2) can also be perforated.
  • To the embossing device (4) can be a cooling section (28) for the web (2)
  • the embossing device (4) is arranged in the immediate vicinity of the heating device (3). You can directly behind the heater (3)
  • Embossing device (4) upstream.
  • one or more other measures to maintain the advantageous for the embossing process web temperature can be taken.
  • Figure 1 is also schematically a
  • the embossing device (4) can be adjusted in one or more spatial axes, in particular in the height and / or horizontal distance and adapted to the heater (3) and possibly the position of the web (2).
  • the positioning device (33) can also be present in the other embodiments.
  • the heating device (3) and the embossing device (4) can together form a heat treatment device (1).
  • the embossing device (4) can be an integral part of the heat treatment device (1).
  • FIGS 3 and 4 show the heat treatment device (1).
  • the heater (3) is e.g. formed as a furnace with a surrounding housing (26) and heats the
  • the heating device (3) and / or the Embossing device (4) has a conveying device (22) for the preferably continuous conveying of the material web (2).
  • the conveying movement may be discontinuous, in particular intermittent.
  • the web (2) is transported in the transport direction (25) and leaves the
  • the additional heating means (34) can be any heating means (34)
  • the conveyor (22) can be designed in several parts. It has e.g. in the oven area a continuously moving and preferably continuously driven endless
  • Conveyor (22) a web guide (23) with a plurality of and at least partially driven deflection and
  • the embossing device (4) has an embossing tool (5) for
  • Web (2) be formed.
  • the imprints can also be perforated. Here, e.g. local
  • the embossing device (4) is provided and designed for a hot material web (2).
  • the embossing tool (5) can have a lower temperature than the hot web (2).
  • the embossing device (4) and the embossing tool (5) are connected to the web (2) and the web material, preferably fiber material, adapted.
  • the stamping tool (5) impresses the web (2)
  • Air flow is formed.
  • Fluid flow (6) include a liquid.
  • the embossing tool (5) has an embossing body (7) with a perforated body shell (9) on which the web (2) rests.
  • the embossing body (7) may have any suitable shape, e.g. a cubic or cuboidal shape, have. In the shown and preferred
  • Embodiment is the embossing body (7) as a rotating embossing roll with a perforated cylinder jacket (9)
  • Angular range or wrap angle e.g. about 90 ° or more to rest and be deflected.
  • Figures 3, 4 and 6 show various embodiments.
  • the embossing tool has in the illustrated and preferred embodiments, a counter-body (8), the
  • Embossing body (7) across the web (2) is arranged opposite. Between embossing body (7) and counter body
  • a gap is formed through which the web (2) is guided.
  • the embossing body (7) can be above or below the web
  • the counter-body (8) can be arranged. This also applies if no counter-body (8) is present.
  • An embossing body (7) can be associated with a plurality of counter-bodies (8, 8 ').
  • the counter-body (8) also has a cylindrical shape and can be designed as a rotating counter-roller. He may also have a perforated body shell (11).
  • the counter body (8) may be formed as a hollow body. In a modification of the embodiment shown, the
  • Counter-body another and e.g. cubic or
  • the contact point (32) or gap is e.g. approximately in the middle of the web loop on the embossing roll (7).
  • the counter-roller (8) is e.g. arranged obliquely below the embossing roll (7).
  • the rollers (7,8) rotate in opposite directions and move circumferentially on the
  • the rotationally symmetrical bodies (7, 8) can be mutually connected, e.g. lie radially opposite.
  • the corpus coats (9,11) of both bodies (7,8) point in the shown
  • Pad (32) directed outside a smooth wall or surface.
  • the embossing device (4) has a preferably controllable vacuum source (14), which is fluidically connected to the preferably hollow embossing body (7).
  • the vacuum source (14) is e.g. as a suction device
  • Embossing device (4) also a preferably controllable overpressure source (15), which directs a fluid flow (6) against the embossing body (7) and there adjacent web (2).
  • the fluid flow (6) may be different, e.g. as a coherent curtain or in the form of discrete flow strands or
  • the overpressure source (15) is e.g. when
  • Blowing device formed, which is a gas flow
  • Fluid flow (6) may alternatively be formed by a liquid in the aforementioned manner.
  • the negative pressure source (14) and the overpressure source (15) can be arranged separately from one another and with regard to the fluid guidance and optionally also the temperature control
  • FIG. 3 shows such a design.
  • the negative pressure source (14) and the overpressure source (15) can be fluidly connected to each other by a fluid return (18).
  • the fluid flow (6) is thereby circulated in a substantially closed circuit.
  • the negative pressure source (14) and the overpressure source (15) can also be connected to a circulation device (16). You can do a structural and
  • the fluid flow (6) can in one variant a
  • Lower temperature than the applied web (2) It has, for example, the external ambient temperature outside the heating device (3) or can be cooled with a cooler, such as a heat exchanger.
  • the lower temperature is advantageous for the formation and subsequent solidification of the aforementioned web deformations on the perforation (10) of the embossing body (7).
  • the fluid flow (6) directed against the perforation (10) can be the deformation of the product web region adjacent thereto
  • the embossing device (4) can furthermore have a cooling device (20) for the embossing tool (5).
  • a cooling device (20) for the embossing tool (5) can e.g. an air or water cooling, with which the
  • Embossing body (7) and / or the counter-body (8), in particular their respective body shell (9,11) is cooled.
  • the cooling device (20) can be used in addition to the
  • the embossing device (4) can have a fluid treatment (19) for the supplied or circulated fluid flow (6).
  • the fluid treatment (19) may be e.g. a
  • Filtering or otherwise cleaning the supplied or circulated fluid flow (6) effect If necessary, it can also be used for conditioning, in particular cooling, dehumidifying or the like. to care.
  • Blowing device is e.g. with a against the embossing body (7) and there touching web (2) directed nozzle (17) fluidly connected.
  • Counter-body (8) preferably arranged stationary and is the outlet side against the contact point (32) of the embossing body (7), counter body (8) and web (2) directed.
  • the nozzle (17) emits said fluid flow (6) through the perforation (12) of the counter body (8) and the
  • the nozzle (17) is preferably radially with its mouth opening against the body shell (11) of the
  • the mouth opening may be formed in any suitable manner. It can also be adapted to the perforation (s) (10, 12). It can e.g. as a continuous slot or as a series of
  • the mouth opening may be present individually or multiple times.
  • Counter body (8) can be coordinated. They have one or more openings in the
  • the openings of the perforation (10) of the embossing body (7) may be larger than the openings of the perforation (12) of the counter body (8) in the illustrated embodiment of Figure 4. In the variant of Figure 5, the openings of the
  • Perforations (10.12) are the same size.
  • the size ratios of the openings of the perforations (10,12) can be varied and adapted to achieve the desired deformation or perforation.
  • the size and shape of the openings of the Prege Schoen perforation (10) determine the shape of the plastic web deformations generated during the embossing process.
  • Shaping can be arbitrary, for example punctiform with circular, oval or primate outer contour or rod-shaped or cross-shaped or in waveform etc.
  • the web is pressed into the openings of the perforation (10) and thereby deformed like a bead.
  • Fluid flow (6) can also flow through the deformed material web areas in the manner mentioned and optionally perforate.
  • FIG. 5 shows this arrangement of embossing body (7)
  • Fluid flow (6) in an opening of the perforation (10) of the embossing body (7) is not shown for the sake of clarity.
  • Figure 5 also shows a primarily for embossing
  • the perforation (10) of the embossing body (7) and possibly the perforation (12) of the counter body (8) can be arranged and designed to form a desired embossing pattern.
  • the perforations (10, 12) can in particular consist of a uniform or irregular matrix of the
  • the perforation openings are arranged distributed over the respective body shell (9,11).
  • the distribution may e.g. be uniform according to Figure 4 and 5, wherein a plurality of axial and over the entire body length extending rows of holes are arranged distributed uniformly over the body or cylinder circumference.
  • the distribution may be uniform according to Figure 4 and 5, wherein a plurality of axial and over the entire body length extending rows of holes are arranged distributed uniformly over the body or cylinder circumference.
  • Rows of holes extend only over a portion of the body length or possibly also be interrupted. Furthermore, can a plurality of perforation openings may be arranged in a different pattern and a different distribution, which may be arranged only locally on the body shell and solid
  • Sheath areas is surrounded.
  • Such local clusters of punched holes may be repeated over the body shell with a uniaxial or multiaxial offset, e.g. be arranged with offset in the axial and circumferential direction of the rollers (7,8).
  • the Lochungs can also be changed if necessary.
  • Punching arrangement can be both deformation and
  • the embossing body (7) and the counter body (8) may have a common or synchronized drive technology (13) for their movement, in particular rotation.
  • the drive technology (13) and the investment or clamping contact on the one hand the web (2) is driven and
  • the drive technology (13) can have one or more drives, in particular rotary drives.
  • a suitable controller (not shown) may be present.
  • the other components of the embossing seal (4), in particular the positive pressure and / or negative pressure source (14,15) may be connected.
  • the nozzle (17) locally directs a defined fluid flow (6) against the perforated body shell (11) of the preferably rotating counter body (8). From the openings of the
  • Perforation (12) occur thereby discrete and each directed against an opening of the perforation (10) flow strands.
  • a negative pressure in the embossing body (7) or its body shell (9) also ambient air can be sucked become .
  • the negative pressure in the embossing body (7) produces a bead-like deformation in the perforation (10), which can be additionally perforated with a sharp fluid flow (6) from the nozzle (17).
  • a perforation (12) of the counter body (8) with relatively small openings is the bead-like
  • the ambient air can pass through the gap at the
  • the same effect by a in the hollow counter-body (8) arranged aperture (35) can be achieved, which has only a local aperture at said contact point (32) of the body (7,8) and the passage point of the fluid flow (6) ,
  • the overpressure source (15) can build up an overpressure in the entire hollow interior of the counter body (7) or a possibly multi-layered and hollow body shell (11).
  • the counter body (7) can be omitted, with only the nozzle (17) is present.
  • Embossing body (7) or its body shell (9) are sucked in particular ambient air.
  • the overpressure device (15), in particular its nozzle (17), can emit a sharp and preferably jet-like fluid flow (6). The same can be done with a corresponding
  • the discrete and directed against an opening of the perforation (10) fluid jets have a very small diameter and can have a particularly high speed. This can be done by a particularly small
  • Opening diameter of the perforation (12) of the counter body (8) and / or by a corresponding mouth design of the nozzle (17) or the diaphragm (35) can be achieved.
  • the fluid jets are directed against the central region of the material, e.g. by a factor of 10, larger holes of the perforation (10) on the embossing body (7) and the local
  • the sharp fluid flow (6) or the fluid jets may be heated and have a high temperature, which also thermally deforms the struck fibers of the web, and e.g. melts. You can perforate the deformation areas encountered.
  • the sharp fluid flow (6) or the fluid jets can act like a jet meter. For this is one
  • the embossing device (4) may have an adjusting device (21) for the delivery of the embossing tool (5) to the web (2).
  • the controllable adjusting devices (21) are indicated schematically in Figure 4 by arrows.
  • the embossing device (4) is arranged behind the heating device (3) in the transport direction (25) of the moving material web (2). It is located near the outlet (27). In the illustrated and preferred embodiments, the embossing device (4) is arranged directly behind the heating device (3).
  • the embossing device (4) is attached to the embossing device (4)
  • Web (2) cools on this short path not or only insignificantly.
  • the embossing device (4) forms a
  • Web (2) is mechanically stabilized and solidified in the manner mentioned by the mechanical indentations and / or perforations.
  • Transport direction (25) behind the embossing tool (5) is the mechanical strength, especially the
  • Heat treatment device (1) may have a detection device (32), indicated in FIG. 3, for one or more process parameters. This can e.g. the temperature of the web (2) and / or the embossing tool (5). Furthermore, the railway and / or
  • the detection device (32) can be used for the
  • Parameter detection one or more suitable sensors or the like.
  • Comprise detection means e.g. one
  • Temperature sensor a thermal imaging camera or the like .
  • a control not shown, is present, to which the detection device (32) and the other
  • connection possibility can also be used for the other components of the
  • the controller controls and regulates the
  • FIG. 6 shows a variant of the embossing device (4) or of the embossing tool (5), in which two or more counter-rollers (8, 8 ') are assigned to an embossing roller (7).
  • Counter rollers (8,8 ') are in the direction of the
  • the counter rollers (8,8 ') may have a different perforation (12,12').
  • the size and distribution of the openings of the perforation (12) of a counter-roller (8) may e.g. in the manner described above and shown in Figure 5 of the perforation (10) of the
  • Embossing body (7) correspond.
  • the openings of the perforation (12 ') of the downstream in the web running direction counter roll (8 ') are smaller than the openings of the perforation (10) of the embossing roll (7). They may correspond to the embodiment of FIG.
  • the small openings of the perforation (12) are at the contact point (32) in each case in overlap,
  • Openings and / or a nozzle (17) each emit a sharp fluid jet, which penetrates and perforates the respectively assigned and already existing deformation of the material web (2).
  • FIG. 6 also shows the stationary arrangement of a diaphragm (35) instead of a nozzle (17) on the counter-roller (8).
  • the counter rollers (8,8 ') are in Figure 6 to a
  • Circulating means (16) are connected and together with a preferably supplied under pressure and in
  • Circulation moving fluid in particular air, supplied.
  • the supplied fluids can, as shown in Figure 6, similarly conditioned, in particular tempered.
  • the web (2) can also be moved discontinuously. Modifications of the shown and described
  • Embossing device (4) a single embossing tool (5).
  • the embossing body (7), in particular the embossing roller is partially covered by the web (2) or
  • embossing body (7) and possibly the counter-body (8) need not be part of the web guide (23). You can also change the contact area differently
  • Transport direction (25) of the web (2) are distanced.
  • the conveyor (22) is for this purpose
  • the distance to the heating device (3) can just be chosen so large that no heat loss detrimental to the embossing process occurs in the material web (2).
  • a thermal insulation can avoid or minimize heat losses of the web (2) and larger distances
  • Embodiments may also be arranged further machine parts or components, which subject the web (2) of an additional treatment.
  • a single web (2) passes through the heating device (3) and the embossing device (4).
  • embossing device (4) In a modification to this is a
  • the web (2) has a continuous, mat-like structure in the embodiments, wherein the
  • Width is greater than the thickness. It may have a substantially flat and homogeneous surface on a broad side before entering the embossing device (3).
  • Web (2) may alternatively be paralleled by individual ones Strands are formed.
  • the claimed embossing technique and possibly the heat treatment technique is suitable in appropriate adaptation for webs (2) made of a different material, such as a tape or films of metal, plastic or the like. consist.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)

Abstract

L'invention concerne un dispositif de gaufrage (4) et un procédé de gaufrage pour une bande de feuille (2) en matériau fibreux textile, notamment un voile de fibres non tissé, à l'aide d'un moule de gaufrage (5) qui assure le gaufrage et éventuellement la perforation de la bande de feuille (2) par une pression négative fluidique et/ou une pression positive fluidique. Le moule de gaufrage (5) présente un corps de gaufrage (7) pourvu d'une surface latérale (9) perforée contre laquelle vient s'appliquer la bande de feuille (2).
PCT/EP2016/070788 2015-09-03 2016-09-03 Dispositif de gaufrage WO2017037273A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21212756.7A EP4001486A1 (fr) 2015-09-03 2016-09-03 Dispositif d'estampage et procédé d'estampage
EP16766871.4A EP3344810B8 (fr) 2015-09-03 2016-09-03 Dispositif de gaufrage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202015104671.5U DE202015104671U1 (de) 2015-09-03 2015-09-03 Prägeeinrichtung
DEDE202015104671.5 2015-09-03

Publications (1)

Publication Number Publication Date
WO2017037273A1 true WO2017037273A1 (fr) 2017-03-09

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WO2003023106A2 (fr) * 2001-09-07 2003-03-20 Polymer Group, Inc. Tissu non tisse a images comprenant des fibres lyocell
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EP2689060A1 (fr) * 2011-03-23 2014-01-29 Trützschler Nonwovens GmbH Dispositif de consolidation d'un produit textile au moyen de gaz chauds

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EP3344810A1 (fr) 2018-07-11
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DE202015104671U1 (de) 2016-12-06
EP3344810B1 (fr) 2021-12-08

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