EP2138615B1 - Procédé de fabrication d'une nappe multiaxiale, couches de fibres unidirectionnelles et leur procédé de fabrication, nappe multiaxiale et pièce composite dotée d'une matrice - Google Patents

Procédé de fabrication d'une nappe multiaxiale, couches de fibres unidirectionnelles et leur procédé de fabrication, nappe multiaxiale et pièce composite dotée d'une matrice Download PDF

Info

Publication number
EP2138615B1
EP2138615B1 EP08158757.8A EP08158757A EP2138615B1 EP 2138615 B1 EP2138615 B1 EP 2138615B1 EP 08158757 A EP08158757 A EP 08158757A EP 2138615 B1 EP2138615 B1 EP 2138615B1
Authority
EP
European Patent Office
Prior art keywords
slivers
fibre
fibres
unidirectional
another
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.)
Not-in-force
Application number
EP08158757.8A
Other languages
German (de)
English (en)
Other versions
EP2138615A1 (fr
Inventor
Rainer Seuss
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.)
LIBA Maschinenfabrik GmbH
Original Assignee
LIBA Maschinenfabrik 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 LIBA Maschinenfabrik GmbH filed Critical LIBA Maschinenfabrik GmbH
Priority to EP08158757.8A priority Critical patent/EP2138615B1/fr
Priority to DE112009001101T priority patent/DE112009001101A5/de
Priority to PCT/EP2009/057787 priority patent/WO2009156385A2/fr
Priority to CN200980124012.2A priority patent/CN102066638B/zh
Publication of EP2138615A1 publication Critical patent/EP2138615A1/fr
Application granted granted Critical
Publication of EP2138615B1 publication Critical patent/EP2138615B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/04—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/18—Separating or spreading
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/002—Inorganic yarns or filaments
    • D04H3/004—Glass yarns or filaments
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
    • D04H3/11—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/12—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form

Definitions

  • the invention relates to methods for producing a multiaxial yarn layer according to the preambles of claims 1 and 4. Both methods of this kind are known from the EP 0 972 102 B1 known.
  • the multiaxial fabric scrims to be produced by the process are used primarily for the production of fiber-reinforced parts made of plastic, wherein the scrim is embedded in a matrix of a plastic.
  • fiber is used synonymously with cable, filament, filament cable or roving.
  • a single fiber or thread is meant, which consists of a plurality of individual filaments and as a starting material has a cross-section of approximately circular or polygonal shape, but may also already have a flattened cross section in the manner of a rectangle with rounded corners ,
  • fibers are required in the form of very thin layers or plies, they are made for cost reasons by widening or spreading thick cables, each consisting of 12,000 (K number 12) or much more filaments.
  • the fibers of the starting material are withdrawn from supply spools, widened in a Sp Dahlaggregat and placed next to each other in the form of the resulting flat strips, so that a thin, flat layer is formed, which has a width of at least 5 cm and a basis weight of at most equal to 300 g / m 2 should have.
  • This layer is used as unidirectional layer for the construction of the multi-axial thread layer, wherein several unidirectional fiber layers are stored with changing directions on top of each other.
  • a transverse cohesion is awarded, which extends over the entire width of this layer and thus on all bands from which this layer is formed.
  • the bands are thus held together by the transverse cohesion.
  • the measures for providing the transverse cohesion are known; Matting by a jet of pressurized water, the needles, the application of a chemical binder or the application of a thermo-fusible thread laid transversely over the unidirectional layer.
  • the methods mentioned influence the desirable planar and smooth formation of the unidirectional layers. This can have a disturbing effect on the formed multiaxial netting which, in view of the later loading in a fiber-reinforced component, should have as homogeneous a texture as possible and a smooth surface on the outside.
  • the unidirectional sheets formed from the starting material and provided with cross-cohesion are first wound up on supply reels, which are later brought to the multiaxial machines for the construction of the multiaxial scrim. There, the layers are removed from the supply spools and brought over a transport device, where they are stored by means of a special installation device in individual cut segments on the transport device or an already existing unidirectional layer. To store the transport device can be stopped so that it can only be operated intermittently.
  • the EP 0 972 102 B1 But also already describes a way to store the segments in continuously moving transport device.
  • the cut segments are temporarily fixed by means of pliers to a carrier which moves a short distance far above the transport device and in the direction thereof, wherein the respective held segment is transferred from the carrier to the transport device.
  • a carrier which moves a short distance far above the transport device and in the direction thereof, wherein the respective held segment is transferred from the carrier to the transport device.
  • Leger clamping device for this purpose. Since according to the EP 0 972 102 B1 the individual bands within the segments are interconnected by the transverse cohesion, it is not possible to compensate for any difference in the length or the mechanical stress of the individual bands with each other. The quality of the resulting Multiaxialge privileges can be affected.
  • a comparable procedure is also from the FR-A-2180606 known. After that, construction parts from aviation technology and aerospace are to be produced with a smooth surface and low weight; Examples include propeller blades and turbine blades.
  • the starting material is carbon fibers with a K number of 10 and more, which are widened by calibration to a basis weight between 90.4 and 123 g / m 2 .
  • the thickness of the resulting bands is given as 0.09 to 0.17 mm, and up to 282 of these bands should be arranged side by side.
  • a simple recalculation shows that layers with a width of the order of 1000 mm are formed. Here, too, several of these layers are to be arranged one above the other in alternating directions to build up a multiaxial yarn layer, which then enters as reinforcement in a fiber-reinforced composite component such as a propeller blade.
  • the fibers of the starting material are provided with a size (matière d'encollage) for better processing.
  • a size matrix (matière d'encollage) for better processing.
  • a sizing not only wraps the fiber from the outside, but also penetrates into the interior of the fiber, makes the filaments smoother and holds the fiber together by adhesion, which facilitates textile processing.
  • a sizing also protects the fiber against corrosion and abrasion, improves the adhesion to the matrix and protects against mechanical damage.
  • the widened bands placed next to one another are given transverse cohesion by means of a special measure, ie they are connected to one another.
  • a special measure ie they are connected to one another.
  • a cross-connection thus takes place with a material application and mutual fixing of the bands. This contradicts the requirement for a smooth surface and leads to the fact that length and tension differences between the individual adjacent bands can form.
  • a widened band is first produced by spreading the fibers of the starting material, which is stored as an intermediate to several bands next to each other or as a single band on supply reels.
  • This semi-finished product is then brought to the multi-axial machine and withdrawn there again and stored in the form of segments to unidirectional thread layers.
  • offline spreading In operating jargon, such a procedure is referred to as "offline spreading".
  • online spreading In contrast, the so-called “online spreading” is already known, in which the spreading unit is located directly next to the multi-axial machine and works in time with the laying device.
  • From the DE 10 2005 008 705 B3 is an apparatus for feeding slivers to a knitting machine out, in which the fibers of the starting material on their way from a creel to the laying device, ie in the "online process" widened.
  • the fibers of the starting material already have the form of ribbons and are further widened in the device.
  • the slivers of the starting material are individually withdrawn from spools and performed on the way from the creel to the band-laying device at a distance from each other and gradually widened by means of heating and pressure rollers.
  • a heating channel is arranged with the final spreading unit.
  • This heating channel is preceded by a tape storage.
  • the band-laying device for storing the unidirectional layers is in the DE 10 2005 008 705 B3 not treated further.
  • the intermittent and periodically fluctuating decrease of the spread bands by the band-laying device is compensated by the band-memory controlled in time with the band-laying device.
  • the slivers can be withdrawn from the spools at a constant speed.
  • the belt speed must constantly change in accordance with the operation of the band-laying device, and it also phases of stoppage are required. This requires, inter alia, an adjustment of the heating power in the heating channel and is contrary to the requirement for a uniform as possible installation.
  • the proposal according to the application 07 011 718.9 is another contribution to the ever-present goal of laying the unidirectional fiber layers as evenly as possible and thus creating a multiaxial filament covering with a homogeneous structure.
  • the invention is also based on the object that in the method according to the preambles of claims 1 and 4, the unidirectional fiber layers are stored evenly.
  • the first solution of the problem is based on the surprising finding that it is not necessary to give the fiber layer formed from the individual ribbons a transverse cohesion, which extends in summary over the entire layer width and also connects the individual bands together.
  • a transverse cohesion which extends in summary over the entire layer width and also connects the individual bands together.
  • the solution according to claim 4 is based on the recognition that the fibers which are important in practice, especially the carbon fibers, are only available in a commercial form in which they are provided with a size or another adhesive.
  • the effect of the size can be reduced by targeted action. So it is e.g. It is known to lower the adhesion between the filaments of a fiber by heating, thereby reducing the effect of the size.
  • targeted action on the size and a suitable guidance of the fibers in the spread area is achieved according to the second invention proposal, that although the broadening of the fibers is made into bands and stabilized, but that adjacent bands remain essentially unconnected laterally.
  • the claims 5 to 8 relate to the assignment of the spreading process to the inventive method. These can be carried out in the method of offline spreading, but also of online spreading.
  • offline spreading according to claim 5 the gripper must be operated with a defined slip of the bands, and the restoring force of the bands in the compensation of the different mechanical longitudinal stresses is applied by a clamping device, which is already present in the laying device.
  • the coils should be designed as disc coils. It is particularly advantageous if the already spread as an intermediate product bands are provided on at least one common bobbin a disc coil, with several spread bands are wound side by side, but have no connection with each other, so are unconnected.
  • the fibers of the starting material may be present on cheeses or on disc coils in the creel. In the arrangement on disc coils only one fiber should be wound on each disc coil.
  • the gripper must grasp the adjacent belts firmly, ie without any slippage, and guide them over the transport device.
  • the restoring force of the bands comes about in these cases by the coils of the creel and also by the spreader. Dienlich here is that the coils are usually equipped with drain brakes anyway.
  • the targeted action can be carried out before, during or after spreading, wherein the method is performed so that the spreading process is successfully carried out and stabilized, while an adhesion effect is laterally avoided between the individual bands.
  • the targeted action may be mechanical, e.g. By rolling a lateral vibration is applied to the bands. A thermal action takes place by heating, but also a chemical treatment or an activating irradiation is possible.
  • a cohesive is applied, which initially remains latent, but is thermally activated after the laying of the segments and the deposited fiber layers together.
  • the cohesion agent may e.g. be applied in the form of a powder before laying on the bevy of bands that together form a segment.
  • a powder can also be applied to an unidirectional layer already laid down on the transport device in order to connect the next unidirectional layer to be applied as soon as the cohesive effect of the cohesive agent is activated.
  • Activation can take place after all unidirectional fiber layers have been deposited, ie the multiaxial fabric is finished.
  • the cohesion agent can also be activated occasionally during the laying process, if there is a risk that the support of the superimposed unidirectional layers on the transport device is not sufficient and thus the uniform storage is at risk.
  • the invention also relates to an undirectional fiber layer according to claim 23, which is useful in carrying out the method according to claim 1. Further developments of this unidirectional fiber layer are specified in claims 24 to 27.
  • Such a unidirectional fiber layer is also produced as an intermediate product by winding a number of strips side by side on a disk coil, the strips each having transverse cohesion but being unconnected laterally.
  • the claim 28 relates to the corresponding unidirectional fiber layer, which is useful in carrying out the method according to claim 4, while the claims 29 to 32 relate to a multiaxial thread loom, as in the methods according to claims 1 and 4, optionally with one or several developments according to the dependent claims, can be made.
  • Fig. 1 is shown in the partial view a very schematically a cross section through a single fiber 1, which may be a carbon fiber.
  • the fiber for which the term thread, cable or filament cable is customary, is composed of a large number of filaments 2.
  • the range of interest here may be carbon fibers 1 with K numbers of 12 to 50 and more, ie carbon fibers of 12000 to 50,000 filaments 2 and more.
  • thin unidirectional yarn layers are produced by drawing the fibers 1 as a starting material according to the partial illustration a and broadening them into spreading devices.
  • the fibers of the starting material need not have a cross section in the form of a polygon or approximately circular cross section, as shown here.
  • the commercial form of sliver which already has a flattened cross-section of approximately rectangular shape, but for practical applications is still much too thick, so also has to be broadened.
  • a grammage of the widened band 3 and the unidirectional layer formed thereby is set to 300 g / m 2 and less.
  • a broadened fiber 1 would have a cross-section, as in the section in the partial view b of Fig. 1 is shown.
  • the thickness of the band 3 would be about the
  • Diameter of a single filament 2 correspond. In practice, it comes at most to an approximation to this condition.
  • the sizing 4 not only envelopes the fiber 1 from the outside, but also penetrates into the interior of the fiber 1, makes the filaments 2 smoother and holds the fiber 1 together by adhesion, which facilitates textile processing.
  • the size 4 also protects against corrosion and abrasion, improves the adhesion to the matrix and protects against mechanical damage.
  • the adhesion effect of the size 4 is hindering the spreading of the fibers 1 of the starting material.
  • the thermal weakening of the adhesion is particularly well known in that the fibers are transported through a heating device in which the sizing also heats up and partially or completely loses its effect.
  • Mechanical action may be to vibrate the fibers transversely.
  • the chemical action is possible by a diluent or solvent in a certain concentration acts on the fibers and thus also on the sizing. In Fig. 2 the conditions are shown schematically.
  • the advantageous for the spreading process reduction of the adhesion between the filaments 2 also affects the behavior of the bands 3, which is a segment 5 (see. Fig. 3 ) next to each other placed and stored to build a unidirectional position. Namely, between the adjacent bands 3 is no longer adhesion, if the effect of the size 4 has been reduced.
  • the bands of a segment thus have no connection with each other.
  • this supposed disadvantage is transformed into an advantage in that the bands 3 remain unconnected in the segment 5 and in this state undergo the deposition process.
  • This procedure has the advantage that differences in the mechanical longitudinal stress, which inevitably exist between the individual bands of a segment 5, can be compensated shortly before the final transfer of the segment 5 to the laying device of the laying device.
  • Fig. 3 the conditions are shown in a first embodiment. It is assumed that the already widened bands 3a, 3b are obtained from a supplier and brought as an intermediate product to the location of the multi-axial machine. In business jargon, this is called "offline spreading".
  • the bands 3a, 3b are already formed by the method according to the invention by being laterally without significant adhesion or cohesion effect, so remain unconnected when juxtaposed.
  • the bands 3a, 3b can each be deducted from disk coils of a creel and brought together until they are parallel to each other. According to FIG. 3 However, the bands 3a, 3b are provided on a common bobbin of a disc coil 12, wherein the bands 3a, 3b are unconnected laterally.
  • FIG. 10 The representation of such a disk coil 12 in concrete form shows FIG. 10 , where cheeses 17 are shown there for the starting material.
  • the respective front end of this parallel fiber bundle is pulled by a gripper 6 across the transport unit, transferred to the Leger clamping device, separated from the remaining parallel fiber bundle and finally attached to the transport device.
  • This type of laying can be done with intermittent or continuously moving transport device.
  • Fig. 3 shows only the parts needed to understand the principle.
  • 6 of the gripper is designated, which pulls the consisting of two bands 3a, 3b segment 5 across the transport device, not shown, which extends below the segment 5 and consists for example of two conveyor chains.
  • the pulling direction is indicated by the directional arrow 7.
  • a clamping device 8 serves to hold the segment 5 until it is separated by means of the separator 9 from the parallel fiber bundle supplied.
  • the single segment 5 is present as an independent part and is stored by a Leger clamping device 16 on the transport device, not shown.
  • FIGS. 3a and 3b show the state of the segment 5 just before its laying by the Leger clamping device.
  • the segment 5 is not stored homogeneously; because the upwardly facing bulge 10 on the upper band 3a in the illustration indicates a difference in length and thus a different mechanical longitudinal stress in the segment 5.
  • the tapes 3a and 3b are not connected laterally because adhesion is not present and no measures are taken to achieve transverse cohesion between the tapes 3a and 3b.
  • the gripper 6 allows slippage of the bands 3a and 3b during the pulling movement.
  • the gripper 6 transmits a sufficient tensile force, but, on the other hand, allows a slippage movement of the bands 3a, 3b in the gripper 6 in a targeted manner.
  • a compensating movement already comes about when the gripper 6 pulls the front ends of the bands 3a, 3b, which form the segment 5, across the transport means.
  • the decisive factor is that the gripper 6 at the conclusion of its installation movement, when the clamping device 8 is closed, once again performs a brief tensioning movement and thereby unifies the mechanical longitudinal stress of the bands 3a, 3b. This may be a very short movement in the millimeter range, which the gripper 6 performs once again with respect to the clamping device 8 at the cutting end of the segment 5. Immediately thereafter, the segment is transferred to the Leger clamping device.
  • the method according to the invention can also be carried out on multi-axial machines in which the fibers of the starting material are brought to the machine and widened on the machine itself.
  • This procedure is also referred to in business jargon as "online spreading".
  • Common are stationary arranged spreading units, which are located between the creel and the laying device. Although it is provided at the output of the creel, a compensation loop for the fibers, can not be prevented that the widened bands of the laying device are supplied with periodically changing running speed. For the possibility already described, to bring about a compensation of different mechanical longitudinal stresses between the individual bands of a segment when laying the segments, nothing changes.
  • the restoring force of the belts which acts against the pulling force of the gripper, can not only be brought about in the case of on-line spreading, not only by the disk coils of the creel, but also by the spreading unit. This is all the more true, since the bands anyway do not pass through the stationarily arranged spreading units at a constant speed, insofar as there is no fundamentally new disadvantage due to the retroactive effect of the compensating movement. Under certain circumstances, the clamping device for the compensating movement, which is already present, can optionally also be used.
  • a further tightening and equalizing of the segments 5 can be carried out by a conveyor in the form of conveyor chains these diverge slightly at the inlet to the final connection station, including the located on the conveyor chains fasteners for the ends of the segments 5 also a slip of the bands 3a, 3b must allow.
  • the prerequisite is in any case that the individual bands within a segment 5 and thus also the segments 5 are largely free of adhesion and free of cohesion, ie laterally unconnected and can move against each other. This also applies if each band 3a, 3b has transverse cohesion per se.
  • FIG. 4 is a schematic compilation that summarizes the details discussed so far and prepares the following illustrations.
  • Denoted at 11 is a processing station in which all the facilities required for spreading and further treating the fibers and / or belts are summarized.
  • the illustration shows a closed clamping device 8 and a gripper 6 in the end position. The voltage compensation is already done, with the required restoring force to the gripper 6 through the coil of the creel and / or a spreader is done.
  • FIG. 5 is shown a way how the fibers 1 a, 1 b of the starting material initially widened together and then treated separately in pairs.
  • the fibers 1a, 1b already have the starting shape of a relatively thick band and are therefore drawn off from disk coils 12. With a starting form of fibers which have approximately circular cross-section, cheeses are the standard solution.
  • the fibers 1a, 1b are passed through the rollers 13 of a spreading unit and thereby undergo a widening to bands 3a, 3b.
  • the widened bands 3a, 3b are separated in pairs by further treating a first group 3a in a first higher level and a second group of bands 3b in a second, lower level.
  • the bands 3a, 3b in each floor are also laterally spaced from each other.
  • an influencing station is designated, with the targeted on the bands 3a of the upper floor is acted upon.
  • a corresponding processing station 15 may also be provided for the bands 3b of the lower floor.
  • the influence may be that the bands 3a, 3b are heated, whereby the effect of the size and the mutual adhesion of the filaments 2 in the bands 3a, 3b is reduced. In this way, the broadening of the fibers 1a, 1b to ribbons 3a, 3b achieved by the spreading is stabilized.
  • the lateral adhesiveness of the bands is reduced, so that the bands 3a, 3b remain virtually unconnected when they are brought together again after passing through the last deflection roller 14.
  • the interference station 15 or a further adjunct station may serve to apply a transverse cohesive to each of the bands 3a, 3b separately.
  • the type of tape guide causes also in this case, that after leaving the processing station 11, although each of the bands 3a, 3b additionally has a transverse cohesion, but that this transverse cohesion is not effective between the bands 3a, 3b.
  • a cohesive agent can be applied to the bands 3a, 3b, which initially remains latent but can be activated at a desired time when two unidirectional layers are deposited on one another.
  • the activation can be done for example by heat or irradiation.
  • FIG. 6 shows a process guide in the event that the targeted influence is effective even with adjacent bands 3a, 3b. If the effect of the sizing is so far weakened that the spreading effect is maintained and the adhesion between the filaments is reduced, so are also in this case before bands 3a, 3b, which can be shifted in the longitudinal direction to compensate for length and voltage differences against each other.
  • FIG. 6 schematically shown that the influencing station 15 in the running direction 7 of the bands 3a, 3b seen before, can be arranged exactly above or behind the rollers 13 of the Sp Dahlaggregates. It is always important to enable the spreading process by targeted action on the fibers 1a, 1b and / or bands 3a, 3b at all, but also to maintain the spreading result and to achieve that the spread bands 3a, 3b remain unconnected, too if they are parallel next to each other.
  • the inventive method can be carried out with particular advantage in such multi-axial machines in which the spreading unit is not arranged stationary, but is moved together with the creel as a common structural unit controlled.
  • the movement of this structural unit is carried out in accordance with the changing in unit time requirements of the laying device on tapes, in such a way that the fibers of the starting material are withdrawn at a constant speed of the bobbin creels and also go through the spreading unit at a constant speed.
  • Such a multi-axial machine and its method are in the older, but not previously published European patent application of the applicant with the number 07 011 718.9 presented and described in detail. It can be referred in this respect to this earlier application.
  • FIG. 7 is denoted by the reference numeral 21, a machine frame, which can form a lateral attachment of a multi-axial machine, see. this the FIG. 9 ,
  • the machine frame 21 has a track in the form of guide rails 22.
  • the common structural unit in the form of a carriage 23 by means of rollers 24 is movable.
  • the carriage 23 carries a creel 25 and a spreading unit 26, which is designed as a continuous unit.
  • the creel 25 consists of a plurality of coils 27 on which individual fibers 28, for example carbon fibers or aramid fibers, are wound up as the coil material.
  • the individual fibers 28 are withdrawn via pulleys 29 of the coils 27 and guided by the spreading unit 26.
  • the coils 27 are equipped with braking devices to allow the tension in the stripped fibers 28 to be adjusted and controlled.
  • the pulleys 29, as well as any existing guide eyelets or similar guide members must have a smooth surfaces so that they do not damage the sensitive coil material.
  • the individual coils 27 and guide roller 29 are not only offset in height but also laterally, cf. the FIG. 8 , For the execution of the spreading unit 26 numerous proposals are known.
  • the fibers 28 may be widened by passing over rollers which vibrate or are heated in their axial direction.
  • the treatment with rotating, curved rollers for the purpose of spreading or widening belongs to the prior art.
  • the different methods can also be used together.
  • the aim of this treatment is always to transform the thick individual fibers 28 of the starting material, especially carbon fibers, into flat bands 30 having a weight per unit area of at most 300 g / m 2 , which lie parallel next to one another.
  • the bands 30 are shown lying close together.
  • FIG. 9 It is shown how the arranged on a carriage 23 structural unit of creel 25 and spreading unit 26 of the multi-axial machine is spatially associated with and cooperates with this.
  • the multi-axial machine only the two conventional conveyor chains 32a, b are indicated, the upper halves move in the transport device according to the directional arrows 38.
  • An arrow 39 indicates the laying direction of the belts 30 provided on the carriage 23.
  • the fiber bundle 30 provided by the carriage 23 is transferred to the conveyor chains 32a, b by means of a laying device 33. Their function is to take over a portion of the warp provided on the carriage 23 of the bands 30, to lead over the conveyor chains 32a, b, separate from the endless supply and finally pass to the fastening devices, which on the conveyor chains 32a, b are located.
  • FIG. 9 shows the machine frame 21 is arranged for the carriage 23 in the laying direction 39 of the bands 30 laterally adjacent to the multi-axial machine. In other words, the carriage 23 with the creel 25 and the spreading unit 26 moves back and forth in the direction of laying 39 of the belts 30 in a controlled manner.
  • the reference numeral 31 is in FIG. 9 denotes a releasable clamping device which serves as a holding and detecting means and the front free end of the spreading unit 26 leaving belts 30 holds until it is passed over the conveyor chains 32a, b.
  • a gripper 35 which is driven along a guide track 34 transversely to the conveying direction 38 of the conveyor chains 32a, b reciprocatingly movable.
  • the guideway 34 therefore also runs in the laying direction 39 of the belts 30.
  • the band-shaped section of the fiber bundle 30 located above the two conveyor chains 32a, b is then separated from a separating device, not shown, which is located in the region of the clamping device 11, and thus becomes a separate segment 30a.
  • the newly formed free ends of the still on the carriage located bands 30 are then held by the clamping device 31 again.
  • the cut-to-length segment 30a located above the conveyor chains 32a, b is gripped at its two ends by a laying device 36, which likewise belongs to the laying device 33, which is driven in the direction of the conveyor chains 32a, b to move back and forth.
  • the leger clamping device 36 finally transfers the segment 30a to clamping devices, not shown, which are located on the conveyor chains 32a, b.
  • the segment 30a has thus finally become part of the laid unidirectional fiber layer 37.
  • FIG. 9 a movement phase is shown in which the clamping device 31 is closed and the gripper 35 has indeed already detected the free ends of the bands 30, but is still at rest.
  • the carriage 23, the clamping device 31, the gripper 35 and the Leger clamping device 36 cooperate intermittently, the carriage 23 by the length L ( FIG. 9 ) is reciprocated in accordance with the movement of the gripper 35.
  • the compensation of differences in the longitudinal tension of the bands 30 also takes place in the multi-axial machine according to the FIGS. 7 to 9 in cooperation between the bobbins 27 of the creel 25, the spreading unit 26, the clamping device 31 and the gripper 35.
  • the gripper 35 performs its transport or laying stroke and a group of bands 30 across the conveyor chains 32a, 32b pulls, the restoring force the bands 30 applied by the coil 27 and the spreading unit 26.
  • the gripper 35 must in this case, the bands 30 clamped firmly, so grab and pull without any slippage.
  • the front end of the group of bands 30 is severed and the carriage 23 moves back, the storage end of the bands 30 in the clamping device 31 is held slip-free.
  • the carriage 23 exerts a pulling action on the newly arising stock end, wherein the required tensile force, which must act on the bands 30, comes about through the coils 27 and the spreading unit 26.
  • FIGS. 1 to 6 are identical to FIGS. 1 to 6:
  • FIGS. 7 to 9 are identical to FIGS. 7 to 9:

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Nonwoven Fabrics (AREA)
  • Woven Fabrics (AREA)
  • Ropes Or Cables (AREA)

Claims (32)

  1. Procédé de fabrication d'un produit textile multiaxial qui présente la forme d'une bande sans fin située sur un dispositif de transport et se déplaçant avec ce dernier dans le sens de sa longueur, des couches unidirectionnelles de fibres étant déposées les unes au-dessus des autres en alternant le sens de la longueur et étant fixées temporairement sur le dispositif de transport, le procédé comptant les étapes suivantes :
    a) le matériau de départ des couches de fibres unidirectionnelles est formé de fibres constituées de filaments et dotées d'un enduit,
    b) avant la pose en un produit textile multiaxial, les fibres sont étalées dans une opération d'étalement, chaque fibre étant déformée en un ruban dont le poids par unité de surface est d'au plus 300 g/m2,
    c) les couches de fibres unidirectionnelles sont déposées sous la forme de segments distincts situés les uns à côté des autres et dont chacun est constitué d'au moins deux rubans, le sens de la longueur des rubans et donc des segments s'étendant obliquement par rapport à la direction longitudinale et à la direction de déplacement du produit textile en forme de bande ainsi produit, caractérisé en ce que le procédé présente les autres étapes de traitement ci-dessous :
    d) une cohésion transversale est conférée aux différents rubans (3, 3a, 3b, 30) avant leur assemblage en segments (5, 30a) de telle sorte que les rubans (3, 3a, 3b, 30) posés les uns à côté des autres restent essentiellement non liés à l'intérieur du segment (5, 30a) et
    e) les segments (5, 30a) traversent dans cet état la totalité de l'opération de pose, la cohésion entre les rubans (3, 3a, 3b, 30) et entre les segments (5, 30a) des différentes couches de fibres unidirectionnelles résultant de la fixation temporaire sur le dispositif de transport.
  2. Procédé selon la revendication 1, caractérisé en ce que lors de l'opération de pose, un dispositif de saisie (6, 35) tire les rubans (3, 3a, 3b, 30) transversalement sur le dispositif de transport pour former les segments (5, 30a), la coopération entre la force de traction du dispositif de saisie (6, 35) et la force de rappel des rubans (3, 3a, 3b, 30) entraînant une compensation des différentes contraintes mécaniques longitudinales entre les différents rubans (3, 3a, 3b, 30).
  3. Procédé selon les revendications 1 ou 2, caractérisé en ce que les rubans (3, 3a, 3b, 30) voisins sont situés à distance latérale mutuelle lors de l'apport de la cohésion transversale.
  4. Procédé de fabrication d'un produit textile multiaxial qui présente la forme d'une bande sans fin située sur un dispositif de transport et se déplaçant avec ce dernier dans le sens de sa longueur, des couches unidirectionnelles de fibres étant déposées les unes au-dessus des autres en alternant le sens de la longueur et étant fixées temporairement sur le dispositif de transport, le procédé comptant les étapes suivantes :
    a) le matériau de départ des couches de fibres unidirectionnelles est formé de fibres constituées de filaments et dotées d'un enduit,
    b) avant la pose en un produit textile multiaxial, les fibres sont étalées dans une opération d'étalement, chaque fibre étant déformée en un ruban dont le poids par unité de surface est d'au plus 300 g/m2,
    c) les couches de fibres unidirectionnelles sont déposées sous la forme de segments distincts situés les uns à côté des autres et dont chacun est constitué d'au moins deux rubans, le sens de la longueur des rubans et donc des segments s'étendant obliquement par rapport à la direction longitudinale et à la direction de déplacement du produit textile en forme de bande ainsi produit et un dispositif de saisie du dispositif de pose tirant les rubans transversalement sur le dispositif de transport pour former les segments, caractérisé en ce que
    une action contrôlée sur les fibres (1, 1a, 1b, 28) et/ou sur les rubans (3, 3a, 3b, 30) avant la pose entraîne une diminution de l'effet d'adhérence de l'enduit (4) entre les filaments (2) des fibres (1, 1a, 1b, 28) et/ou des rubans (3, 3a, 3b, 30) et
    en ce que le procédé est conduit de telle sorte que des rubans (3, 3a, 3b, 30) situés étroitement les uns à côté des autres restent essentiellement non liés,
    en ce que les rubans (3, 3a, 3b, 30) traversent dans cet état la totalité de l'opération de pose, en ce que la coopération entre la force de traction du dispositif de saisie (5, 30a) et la force de rappel des rubans (3, 3a, 3b, 30) entraîne une compensation des différentes contraintes mécaniques longitudinales entre les différents rubans (3, 3a, 3b, 30) et
    en ce que la cohésion entre les rubans (3, 3a, 3b, 30) et les segments (5, 30a) à l'intérieur de la couche unidirectionnelle résulte de la fixation temporaire sur le dispositif de transport.
  5. Procédé selon l'une des revendications 2 à 4, caractérisé en ce que les rubans (3a, 3b) déjà étalés sont préparés sous la forme d'un produit intermédiaire sur des bobines (12) à deux plateaux, sont extraits sur un cantre et apportés au dispositif de saisie (6), en ce qu'un glissement défini des rubans (3a, 3b) est prévu dans le dispositif de saisie (6) et en ce que lors de l'équilibrage des différentes contraintes mécaniques longitudinales, tous les rubans (3a, 3b) sont fixés dans un dispositif de serrage (8) à l'extrémité du segment (5) non tournée vers le dispositif de saisie (6).
  6. Procédé selon la revendication 5, caractérisé en ce que les rubans (3a, 3b) déjà étalés du produit intermédiaire sont préparés sur au moins un corps commun d'une bobine (12) à plateaux sur laquelle au moins deux rubans étalés (3a, 3b) sont enroulés l'un à côté de l'autre mais sans être reliés l'un à l'autre.
  7. Procédé selon l'une des revendications 2 à 4, caractérisé en ce que l'étalement des fibres (3a, 3b) a lieu sur la machine multiaxiale de fabrication du produit textile multiaxial, les fibres (1, 1a, 1b) du matériau de départ extraites par le cantre traversant un appareil stationnaire d'étalement et étant apportées au dispositif de saisie (6) sous la forme des rubans étalés (3a, 3b), tous les rubans (3a, 3b) étant fixés dans le dispositif de saisie (6) lors de la compensation des différentes contraintes mécaniques longitudinales et la force de rappel des rubans (3a, 3b) étant appliquée par les bobines du cantre et le dispositif d'étalement.
  8. Procédé selon l'une des revendications 2 à 4, caractérisé en ce qu'il présente les étapes de traitement suivantes :
    a) l'étalement des fibres (28) s'effectue sur la machine multiaxiale de fabrication de produit textile multiaxial, les fibres (28) extraites par un cantre (25) traversant une machine d'étalement (26),
    b) le cantre (25) est déplacé de manière contrôlée en même temps que l'appareil d'étalement (26) et qu'une unité structurelle commune (23) de telle sorte que la distance L entre l'unité structurelle commune (23) et le dispositif de pose (33) soit modifiée de manière contrôlée,
    c) le déplacement de l'unité structurelle commune (23) s'effectue en fonction des besoins, variables par unité de temps, du dispositif de pose en rubans (30) de telle sorte que les fibres (28) du matériau de départ traversent l'appareil d'étalement (26) à vitesse constante,
    d) pour la compensation des différentes contraintes mécaniques longitudinales entre les différents rubans (30) d'un segment (30a), les extrémités de ce dernier sont fixées dans un dispositif de saisie (35) et la force de rappel des rubans (30) est appliquée par les bobines (27) du cantre (25) et l'appareil d'étalement (26).
  9. Procédé selon l'une des revendications 1 à 8, caractérisé en ce que les segments (5, 30a) sont déposés les uns à côté des autres sans interstice, avec superposition ou à distance les uns des autres.
  10. Procédé selon l'une des revendications 4 à 9, caractérisé en ce que l'action contrôlée est réalisée avant, pendant ou après l'étalement.
  11. Procédé selon la revendication 10, caractérisé en ce que l'action contrôlée est réalisée par voie mécanique, thermique ou chimique.
  12. Procédé selon l'une des revendications 1 à 11, caractérisé en ce qu'avant la pose des segments (5, 30a) sur l'une des couches de fibres, un agent de cohésion est appliqué, est activé thermiquement après la pose des segments (5, 30a) et relie les unes aux autres les couches de fibres.
  13. Procédé selon l'une des revendications 1 à 12, caractérisé en ce que les bandes voisines sont déposées sans interstice, avec superposition ou à distance les uns des autres.
  14. Procédé selon l'une des revendications 1 à 13, caractérisé en ce que le dispositif de transport est un transporteur mobile.
  15. Procédé selon la revendication 14, caractérisé en ce que le support est une couche textile du produit textile multiaxial proprement dit.
  16. Procédé selon l'une des revendications 1 à 15, caractérisé en ce qu'après la pose de toutes les couches de fibres unidirectionnelles, le produit textile multiaxial est apporté à un poste de liaison dans lequel toutes les couches de fibres sont cousues, tricotées ou calandrées les unes avec les autres.
  17. Procédé selon la revendication 12, caractérisé en ce que le dispositif de transport est constitué de chaînes de transport qui divergent légèrement par rapport à leur direction de transport peu avant la fixation des couches.
  18. Procédé selon l'une des revendications 1 à 17, caractérisé en ce que chaque fibre (1, 1a, 1b, 28) est étalée séparément.
  19. Procédé selon la revendication 18, caractérisé en ce que les fibres (1, 1a, 1b, 28) sont guidées dans différents plans lors de leur étalement, de sorte que toutes les fibres (1, 1a, 1b, 28) soient libres les unes des autres dans la direction latérale.
  20. Procédé selon l'une des revendications 1 à 19, caractérisé en ce que les fibres (1, 1a, 1b, 28) sont constituées au moins d'une couche unidirectionnelle de fibres constituées de filaments discontinus.
  21. Procédé selon l'une des revendications 1 à 20, caractérisé en ce que le matériau des fibres (1, 1a, 1b, 30a) est constitué de carbone, de céramique, de verre, d'aramide, de leurs mélanges ou d'un ou de leurs précurseurs ou produits intermédiaires.
  22. Procédé selon l'une des revendications 1 à 21, dans lequel le nombre de filaments des fibres (1, 1a, 1b, 30a) est d'au moins 12 K.
  23. Couche de fibres unidirectionnelles dont le poids par unité de surface est d'au plus 300 g/m2, constituée d'une couche de rubans disposés parallèlement les uns à côté des autres et obtenus par étalement des fibres qui elles-mêmes sont constituées de plusieurs filaments continus ou discontinus et sont dotées comme matériau de départ d'un enduit,
    caractérisée en ce que
    chacun des différents rubans (3, 3a, 3b, 30) est doté de moyens qui lui confèrent une cohésion transversale et
    en ce que les rubans (3, 3a, 3b, 30) posés les uns à côté des autres restent essentiellement non liés les uns aux autres.
  24. Procédé selon la revendication selon la revendication 23, caractérisée en ce que l'agent de cohésion transversale est un agent adhésif qui est appliqué avant la pose de la couche unidirectionnelle et qui est activé après la pose.
  25. Procédé selon la revendication 24, caractérisée en ce que l'agent de cohésion transversale est un agent qui peut être activé thermiquement.
  26. Procédé selon la revendication 23, caractérisée en ce que l'agent de cohésion transversale est un liant chimique.
  27. Procédé selon la revendication 23, caractérisée en ce que la cohésion transversale est appliquée par des moyens travaillant mécaniquement ou hydrauliquement.
  28. Couche de fibres unidirectionnelles dont le poids par unité de surface est d'au plus 300 g/m2, constituée d'une couche de rubans disposés parallèlement les uns à côté des autres et obtenus par étalement des fibres qui elles-mêmes sont constituées de plusieurs filaments continus ou discontinus et sont dotées comme matériau de départ d'un enduit,
    caractérisée en ce que
    au niveau des surfaces frontières entre les différents rubans (3, 3a, 3b, 30), l'effet d'adhérence de l'enduit est diminué et les rubans (3, 3a, 3b, 30) restent essentiellement non liés les uns aux autres.
  29. Produit textile multiaxial présentant les caractéristiques suivantes :
    a) le produit textile est constitué de couches de fibres unidirectionnelles déposées les unes au-dessus des autres,
    b) au moins une couche de fibres présente un poids par unité de surface d'au plus 300 g/m2 et est constituée de rubans disposés parallèlement les uns à côté des autres, obtenus par étalement des fibres qui elles-mêmes sont constituées de plusieurs filaments continus ou discontinus et qui sont dotées comme matériau de départ d'un enduit,
    c) les couches de fibres unidirectionnelles déposées les unes au-dessus des autres sont reliées les unes aux autres,
    caractérisé en ce que
    d) les rubans (3, 3a, 3b, 30) qui font partie d'une couche de fibres unidirectionnelles sont reliés les uns aux autres principalement par les couches de fibres unidirectionnelles voisines,
    e) les parties latérales de contact des rubans (3, 3a, 3b, 30) situées à l'intérieur d'une couche de fibres unidirectionnelles sont essentiellement non adhérentes et
    f) les différents rubans (3, 3a, 3b, 30) sont tous dotés d'un agent de cohésion transversale.
  30. Produit textile multiaxial présentant les caractéristiques suivantes :
    a) le produit textile est constitué de couches de fibres unidirectionnelles déposées les unes au-dessus des autres,
    b) au moins une couche de fibres présente un poids par unité de surface d'au plus 300 g/m2 et est constituée de rubans disposés parallèlement les uns à côté des autres, obtenus par étalement des fibres qui elles-mêmes sont constituées de plusieurs filaments continus ou discontinus et qui sont dotées comme matériau de départ d'un enduit,
    c) les couches de fibres unidirectionnelles déposées les unes au-dessus des autres sont reliées les unes aux autres,
    caractérisé en ce que
    d) les rubans (3, 3a, 3b, 30) qui font partie d'une couche de fibres unidirectionnelles sont reliés les uns aux autres principalement par les couches de fibres unidirectionnelles voisines, tandis que
    e) les parties des rubans (3, 3a, 3b, 30) en contact latéral mutuel dans une couche de fibres unidirectionnelles sont essentiellement non adhésives par le fait que l'effet d'adhérence de l'enduit y est diminué.
  31. Produit textile multiaxial selon les revendications 29 ou 30, caractérisé en ce que le matériau des fibres (1, 1a, 1b, 30a) est constitué de carbone, de céramique, de verre, d'aramide, de leurs mélanges ou d'un ou de leurs précurseurs ou produits intermédiaires.
  32. Produit textile multiaxial selon l'une des revendications 29 à 31, caractérisé en ce que comme produit de départ, il contient des fibres (1, 1a, 1b, 30a) dont le nombre de filaments est d'au moins 12 K.
EP08158757.8A 2008-06-23 2008-06-23 Procédé de fabrication d'une nappe multiaxiale, couches de fibres unidirectionnelles et leur procédé de fabrication, nappe multiaxiale et pièce composite dotée d'une matrice Not-in-force EP2138615B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP08158757.8A EP2138615B1 (fr) 2008-06-23 2008-06-23 Procédé de fabrication d'une nappe multiaxiale, couches de fibres unidirectionnelles et leur procédé de fabrication, nappe multiaxiale et pièce composite dotée d'une matrice
DE112009001101T DE112009001101A5 (de) 2008-06-23 2009-06-23 Verfahren zum Herstellen eines multiaxialen Fadengeleges, unidirektionale Faserlagen und Verfahren zu ihrer Herstellung, multiaxiales Fadengelege und Kompositteil mit einer Matrix
PCT/EP2009/057787 WO2009156385A2 (fr) 2008-06-23 2009-06-23 Procédé de réalisation d'une structure de fils multiaxiale, couches fibreuses unidirectionnelles et leur procédé de réalisation, structure de fils multiaxiale et pièce composite comprenant une matrice
CN200980124012.2A CN102066638B (zh) 2008-06-23 2009-06-23 生产多轴向纱线织物的方法、单向纤维层以及生产单向纤维层的方法、多轴向纱线织物和具有基体的复合材料部件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08158757.8A EP2138615B1 (fr) 2008-06-23 2008-06-23 Procédé de fabrication d'une nappe multiaxiale, couches de fibres unidirectionnelles et leur procédé de fabrication, nappe multiaxiale et pièce composite dotée d'une matrice

Publications (2)

Publication Number Publication Date
EP2138615A1 EP2138615A1 (fr) 2009-12-30
EP2138615B1 true EP2138615B1 (fr) 2013-04-24

Family

ID=40342153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08158757.8A Not-in-force EP2138615B1 (fr) 2008-06-23 2008-06-23 Procédé de fabrication d'une nappe multiaxiale, couches de fibres unidirectionnelles et leur procédé de fabrication, nappe multiaxiale et pièce composite dotée d'une matrice

Country Status (4)

Country Link
EP (1) EP2138615B1 (fr)
CN (1) CN102066638B (fr)
DE (1) DE112009001101A5 (fr)
WO (1) WO2009156385A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9296174B2 (en) 2011-01-12 2016-03-29 Compagnie Chomarat Composite laminated structures and methods for manufacturing and using the same

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010044721A1 (de) 2010-09-08 2012-03-08 Daimler Ag Verfahren und Vorrichtung zum Herstellen eines Faserhalbzeugs
DE102011000722A1 (de) * 2011-02-14 2012-08-16 Universität Bremen Verfahren zum Herstellen von Faserhalbzeug
DE102011109698B4 (de) 2011-08-06 2016-02-11 Daimler Ag Verfahren zum Herstellen eines harzimprägnierten Faserhalbzeugs
DE102013104609B4 (de) 2013-05-06 2016-10-20 Deutsches Zentrum für Luft- und Raumfahrt e.V. Nestingablage
DE102013216835B4 (de) * 2013-08-23 2017-01-05 Volkswagen Aktiengesellschaft Verfahren zur Herstellung eines faserverstärkten Kunststoffbauteils
DE102013221174B4 (de) * 2013-10-18 2017-02-09 Technische Universität Dresden Verfahren zur Herstellung eines zwei- oder mehrlagigen multiaxialen Geleges sowie ein entsprechendes Gelege und dessen Verwendung
DE102013112259A1 (de) 2013-11-07 2015-05-07 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zur Herstellung eines Faservorformlings
CN103789921B (zh) * 2013-12-13 2015-09-30 常州市宏发纵横新材料科技股份有限公司 大丝束碳纤维双轴向织物生产方法
CN103820941B (zh) * 2013-12-13 2016-01-13 常州市宏发纵横新材料科技股份有限公司 大丝束碳纤维双轴向织物生产设备
DE102014222667A1 (de) 2014-11-06 2016-05-12 Audi Ag Spreizvorrichtung für Rovings
EP3072657B1 (fr) 2015-03-25 2017-08-30 Compositence GmbH Procédé et dispositif de fabrication d'un semi-produit en fibres
CN105752375B (zh) * 2016-04-08 2019-04-05 江苏元泰智能科技股份有限公司 进料方法
CN105691722B (zh) * 2016-04-08 2019-03-19 江苏元泰智能科技股份有限公司 进料机构
CN107523931A (zh) * 2017-09-26 2017-12-29 常州市宏发纵横新材料科技股份有限公司 碳玻一步混编织造工艺及装置
DE102017125647B4 (de) 2017-11-02 2020-12-24 Infineon Technologies Ag Thermoelektrische Vorrichtungen und Verfahren zum Bilden von thermoelektrischen Vorrichtungen
HUE066283T2 (hu) * 2018-03-06 2024-07-28 Aerlyte Inc Szálerõsítésû kompozitok és ezek kialakításának és felhasználásának eljárásai
DE102018119368A1 (de) 2018-08-09 2020-02-13 Audi Ag Vorrichtung und Verfahren zur Herstellung von Faserstacks
CN114229537A (zh) * 2021-12-31 2022-03-25 郑州中远防务材料有限公司 一种能自动纠偏的单向布条带放卷设备及其工作方法
CN114212576A (zh) * 2021-12-31 2022-03-22 郑州中远防务材料有限公司 一种能自动纠偏的单向布条带放卷设备及其工作方法
CN114249155A (zh) * 2021-12-31 2022-03-29 郑州中远防务材料有限公司 一种能自动纠偏的单向布条带放卷设备及其工作方法
CN114575011B (zh) * 2022-02-15 2023-12-19 威海光威精密机械有限公司 一种单向纤维展平和单丝张力同步装置及方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0972102A1 (fr) * 1997-03-28 2000-01-19 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Procede et machine pour la realisation de nappes fibreuses multiaxiales

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2180606B1 (fr) 1972-04-19 1974-09-13 Rhone Poulenc Textile
US4056240A (en) * 1977-02-18 1977-11-01 E. I. Du Pont De Nemours And Company Yarn guide
US4720366A (en) * 1984-06-07 1988-01-19 E. I. Du Pont De Nemours And Company Method for producing fiber reinforced thermoplastic material
US4919739A (en) * 1986-11-07 1990-04-24 Basf Aktiengesellschaft Production of improved preimpregnated material comprising a particulate thermosetting resin suitable for use in the formation of a substantially void-free fiber-reinforced composite article
DE3835574A1 (de) * 1988-10-19 1990-04-26 Bayer Ag Extrusionsimpraegnierwerkzeug
DE10163521A1 (de) * 2001-12-25 2003-07-03 Dieffenbacher Gmbh Maschf Faserstrangzuführ- und Faserstrangvorwärmvorrichtung bei der Herstellung von faserverstärkten Kunststoffmassen
DE10214140B4 (de) 2002-03-28 2008-03-20 Liba Maschinenfabrik Gmbh Haltevorrichtung an den Transportketten einer Maschine zum Vorlegen von Fadengelegen, Verfahren zum Vorlegen und Fixieren von Filamentscharen zu einem Fadengelege und Multiaxialmaschine zur Durchführung des Verfahrens mit einer Haltevorrichtung
DE102005008705B3 (de) 2005-02-25 2006-09-21 Karl Mayer Malimo Textilmaschinenfabrik Gmbh Vorrichtung zum Zuführen von Faserbändern zu einer Wirkmaschine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0972102A1 (fr) * 1997-03-28 2000-01-19 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Procede et machine pour la realisation de nappes fibreuses multiaxiales

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9296174B2 (en) 2011-01-12 2016-03-29 Compagnie Chomarat Composite laminated structures and methods for manufacturing and using the same

Also Published As

Publication number Publication date
EP2138615A1 (fr) 2009-12-30
CN102066638B (zh) 2013-12-25
WO2009156385A2 (fr) 2009-12-30
CN102066638A (zh) 2011-05-18
WO2009156385A3 (fr) 2010-05-06
DE112009001101A5 (de) 2011-04-07

Similar Documents

Publication Publication Date Title
EP2138615B1 (fr) Procédé de fabrication d'une nappe multiaxiale, couches de fibres unidirectionnelles et leur procédé de fabrication, nappe multiaxiale et pièce composite dotée d'une matrice
EP2003232B1 (fr) Procédé et dispositif destinés à la création d'une couche de fibre unidirectionnelle, procédé destiné à la fabrication d'une mêche et dispositif multiaxiale, et procédé de la fabrication d'un tissu fibreux et un métier à tisser
DE60003766T2 (de) Verfahren und Vorrichtung zur Herstellung eines Verbundbandes geformt aus Verstärkungsfasern und thermoplastischem Material
EP2694262B1 (fr) Dispositif et procédé de fabrication de préformes à fibres constituant notamment une phase préalable dans la fabrication de composants plastiques renforcés par fibres
DE102007024124B3 (de) Multiaxialmaschine
DE102009042384B4 (de) Verfahren und Einrichtung zum Aufbringen einer unidirektionalen Faserlage auf eine sich bewegende Unterstützung und Verfahren zum Herstellen eines Multiaxialgeleges
EP3386735B1 (fr) Dispositif de dépôt pour des mèches de fibres
EP2151517B1 (fr) Procédé de fabrication d'une couche de fibre unidirectionnelle et dispositif d'écartement de fibres
EP2327648B1 (fr) Dispositif et procédé de production d'une couche UD
EP2181217B1 (fr) Procédé et dispositif pour la fabrication en continu d'une bande multiaxiale non tissée
DE19624912C2 (de) Maschine zur Herstellung vorkonfektionierter Verstärkungsgelege
EP2822754A1 (fr) Application transversale de fibres
EP3738753B1 (fr) Procédé et dispositif de fabrication d'un faisceau de fibres hybrides
EP0072453B1 (fr) Procédé et appareil de fabrication d'une nappe de fils
DE102012218178A1 (de) Vorrichtung zur Herstellung von Faservorformlingen, die insbesondere eine Vorstufe bei der Herstellung von faserverstärkten Kunststoffbauteilen darstellen
DE69016614T2 (de) Vorrichtung und Verfahren zur Herstellung einer Glasfasermatte.
DE102011010592A1 (de) Verfahren zum Herstellen eines Hybridrovings
WO2012136391A1 (fr) Dispositif et procédé de fabrication de préformes à fibres constituant notamment une phase préalable dans la fabrication de composants plastiques renforcés par fibres
DE102009029437A1 (de) Mischgarngenerator und Verfahren zur Herstellung von Mischgarn
DE2314889A1 (de) Verfahren und vorrichtung zum herstellen einer nur aus kettfaeden bestehenden beschichteten gewebebahn
DE102014106460A1 (de) Textilmaschine
EP3587646B1 (fr) Dispositif et procédé d'application d'une couche fibreuse unidirectionnelle en forme de bande, de ruban ou de feuille continue à l'aide d'au moins un cantre supportant une pluralité de bobines
DE1635481B2 (de) Maschine zur herstellung eines endlosen fadengeleges
EP3425092A1 (fr) Dispositif et procédé pour etaler un faisceau de fibres
DE102010008529B4 (de) Anlage und Verfahren zum Herstellen von Fördergurten mit Stahlseileinlage

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

17P Request for examination filed

Effective date: 20100630

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ LI

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

17Q First examination report despatched

Effective date: 20101220

RBV Designated contracting states (corrected)

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 608720

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130515

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502008009767

Country of ref document: DE

Effective date: 20130620

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20130424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130826

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130724

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130824

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130725

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130804

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130724

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

BERE Be: lapsed

Owner name: LIBA MASCHINENFABRIK G.M.B.H.

Effective date: 20130630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130724

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130630

26N No opposition filed

Effective date: 20140127

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130630

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130724

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130630

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130623

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008009767

Country of ref document: DE

Effective date: 20140127

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130701

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 608720

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130623

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130623

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20080623

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130623

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008009767

Country of ref document: DE

Representative=s name: FROHWITTER PATENT- UND RECHTSANWAELTE, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 502008009767

Country of ref document: DE

Owner name: KARL MAYER TECHNISCHE TEXTILIEN GMBH, DE

Free format text: FORMER OWNER: LIBA MASCHINENFABRIK GMBH, 95119 NAILA, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 502008009767

Country of ref document: DE

Owner name: KARL MAYER TECHNISCHE TEXTILIEN GMBH, DE

Free format text: FORMER OWNER: LIBA-MASCHINENFABRIK GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG, 95119 NAILA, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20170830

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502008009767

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190101