DE102016113721A1 - Flannel-based web-shaped textile with unidirectionally increased strength - Google Patents

Abstract

The invention relates to a fiber-pile-based sheet-like textile as semifinished product for the production of fiber-reinforced composite materials. The web-shaped textile (10) comprises a stacked arrangement (11) of a plurality of nonwoven fibrous webs (12, 13, 14). The fibers (15) in each of the batt layers (12, 13, 14) have a preferred orientation and all batt layers are stacked with a common preferred orientation (VR). The stacked assembly (11, 21) is additionally stretched parallel to the common preferred orientation (VR) such that the fibers (16) contained in the web of textile (10) have a reinforced preferential orientation (VR '). The invention further relates to an associated manufacturing method and a production plant for the web-shaped textile.

Description

The invention relates to a technology for producing a semi-finished product intended for the production of fiber-reinforced composite or composite components. The technology comprises at least one fibrous web-based web-shaped textile, a process for its production and an associated production plant.

In practice, it is known to form semi-finished products for the production of fiber-reinforced composite materials as a woven fabric or a scrim of, for example, carbon fibers, glass fibers or aramid fibers.

Tissues have the disadvantage that the drapability is impaired by the numerous points of intersection between the fibers or threads contained, which are aligned at least in two generally orthogonal main directions. The drapability of a textile describes the adaptability to any three-dimensional spatial forms, in particular to non-linear curvatures. Furthermore, fabrics tend to pick up significantly more matrix material at the intersections than in the fiber strands, resulting in localized unevenness or disadvantages in processability. Also, the cuttability of fabrics is not homogeneous for all directions.

Fiber scrims usually have a plurality of purely parallel arranged filaments or filaments, which must be held by a support grid or by supporting seams in the form of the scrim. They are highly prone to tearing of the fabric structure transverse to the fiber or yarn direction and are therefore complicated to handle.

Scrims and fabrics are highly structured fiber products in which there is a very high orientation of the fibers along at least one laying or weaving direction. A batt is a nonwoven and non-laid fiber product with very little fiber orientation.

It is known to use fibrous webs or nonwovens as semi-finished products for the production of composite materials. However, the previously known semi-finished products have a substantially homogeneous distribution of strength. The ratio of the maximum longitudinal tensile strength to the transverse tensile strength of previously known fiberboard-based semi-finished products is below the values desired for the production of fiber composite materials. However, some production techniques for fiber reinforced composites require unidirectionally increased strength of the semifinished product.

It is an object of the present invention to provide an improved technology for producing a semi-finished product for the production of fiber-reinforced composite materials. The invention solves this problem by the features in the characterizing part of the respective independent claims.

A process for producing a fibrous web-based sheet-like textile as semifinished product for the production of fiber-reinforced composite materials comprises at least the following steps. A batt is provided, with the fibers contained in the batt having a preferred orientation. The preferred orientation describes a direction in which a greater proportion or majority of the fiber length contained in the batt is aligned. Both full fibers and lengths of the fibers may be aligned along the preferred orientation.

The batt is fed to a Florableger in the manufacturing process. Through the Florableger a web-stacked arrangement of several batt layers is formed, in particular by multi-layer deposition of portions of the supplied batt on a driven conveyor. The formation of the stacked arrangement preferably takes place exclusively from fibrous webs. The formation further takes place in such a way that the fibers contained in the stacked fibrous webs have a matching preferred orientation. In other words, the fibrous webs are each stored with parallel orientation of the respective preferred orientation by the Florableger.

The web-stacked assembly is further stretched in the direction of the matching preferential orientation in the manufacturing process. By stretching along the common preferred orientation, the fibers or length portions of the fibers contained in the stacked arrangement are aligned even more along the preferred orientation. In other words, the proportion of the fiber length contained in the web-shaped textile is increased, which is aligned parallel to the preferred orientation. At the same time, the proportion of the fiber length contained in the web-shaped textile, which is oriented transversely to the preferred orientation, is reduced.

The directional tensile strength of a fibrous web-based fabric is substantially dependent on the proportion of fiber length aligned in the fabric parallel to the respective tensile direction. The increase of the fiber orientation parallel to the preferred direction in combination with the reduction of the fiber orientation transversely to the preferred direction leads to a significantly higher unidirectional tensile strength than previously known fiber-based textiles being achievable. In particular, a ratio of the longitudinal tensile strength of web-shaped textile along the preferred direction relative to the transverse tensile strength of at least 4-to-1 reachable. At the same time, the sheet-like fabric according to the present disclosure is well adaptable to any three-dimensional space shapes, that is, it has a high drapability.

The web-shaped textile according to the present disclosure has several advantages over the known bottle-based semi-finished products as well as with respect to layers and fabrics. Due to its formation from fibrous webs, it has a markedly lower tendency to tear open transversely to the preferred direction than fabric or scrim and it has a homogeneous surface absorption capacity for a matrix fabric. It is also easy to handle and in particular largely without distortion cut. Nevertheless, it has a high directional tensile strength, which allows, for example, a construction of composite components along a load path.

With only one applied semifinished product from the sheet-like textile according to the disclosure comparable strength properties can be brought about in a component to be produced as by the application of several semi-finished layers of a previously known fabric or fabric. Thus, by the web-shaped textile according to the present invention, the subsequent production of components made of fiber-reinforced composite materials can be simplified and accelerated.

Due to the still considerable proportion of fibers with a random orientation in the web-shaped textile, a surface-homogeneous appearance of the web-shaped textile is produced. A fiber-reinforced component produced from the sheet-like textile according to the disclosure can thus have a very homogeneous surface structure, which has particular advantages with respect to further workability and paintability. The partially undesirable formation of a checkerboard or stripe pattern on the component is avoided.

The deposition direction of the pile divider for stacking the fibrous webs in the formation of the web-shaped stacked arrangement is preferably aligned parallel to the matching preferred orientation. The Florableger is therefore preferably designed as a longitudinal stock. Furthermore, accordingly, the withdrawal direction of the conveyor is preferably parallel to the storage direction and thus also parallel to the matching preferred orientation. This allows a particularly favorable layout of the production plant and a well controllable manufacturing process.

The laying down of the batt preferably takes place in such a way that two or more batt layers are laid over one another in a staggered manner along the withdrawal direction. This can preferably be done by depositing tape loops (in cross-section in a meandering shape) or tape pieces.

A production line for producing a fiber-based strip-like textile according to the present disclosure comprises at least a pile delivery device, a pile removal device and a stretching device. The curtain delivery device is configured to provide a nonwoven batt with a preferred orientation of the fibers contained in the batt. The Florableger is adapted to stack the supplied batt on several conveyors, each with matching preferred orientation of the fibers contained therein on a conveyor. The stretching device is configured to stretch the multilayer stacked array of the plurality of batt layers parallel to the matching preferred orientation. The Florbbereitstellungseinrichtung, the Florableger and the stretching device are preferably arranged in the direction of the common preferred orientation in a row.

In the dependent claims of the following description and the accompanying drawings further preferred embodiments of the invention are given.

The invention is illustrated by way of example and schematically in the drawings. Show it:

1 Figure 11 is an oblique view of the sheet-like fabric and a lay-up method for forming the stacked fiberboard sheet according to a preferred embodiment;

2 : A sectional view transversely to the preferred direction through the web-shaped textile 1 ;

3 a preferred embodiment of a production plant in a combined cross-sectional and plan view representation;

4 to 6 : various laying methods for forming the stacked arrangement by a pile pedestrian;

7 FIG. 4 is an explanatory view of the effect of stretching the stacked assembly. FIG.

Hereinafter, preferred embodiments of the web-shaped textile, the method for producing the textile and an associated production facility will be described. All disclosed features may be components of the sheet-like Textile, the manufacturing process or the production plant, even if they are explicitly explained only for one of the mentioned objects.

1 shows an oblique view of a conveyor ( 35 ), here a take-off belt on which the multilayer stacked arrangement ( 11 . 21 ) of the inventive sheet-like textile ( 10 ) is formed.

A batt ( 20 ) is from above and in a direction parallel to the withdrawal direction (AR) extending stacking movement gradually on the conveyor ( 35 ) or a previously deposited pile layer applied. A fibrous web is a web-shaped amount of fibers with a low basis weight and low internal strength, for example, produced on a carding machine. Its outer shape resembles a cotton wool, but a batt has higher structuring and uniformity of the contained fibers. The fibers are present in a batt with (predominantly) confused structure. It can be introduced a defined pronounced preferential orientation of the fibers, in particular in the longitudinal direction of the card web. The term nonwoven stands in contrast to terms such as "fleece", "fabric" or "scrim", which denote textile end products or intermediates with higher internal strength. For example, a nonwoven may be made by solidifying one or more layers of batt. Fabrics and scrims do not comprise tangled single fibers, but highly structured fibers, which are brought in particular as yarns by weaving or laying in the parent structure.

In the illustrated example, already a first pile layer ( 12 ), a second original (AR) offset thereto ( 13 ) as well as a correspondingly arranged third pile layer ( 14 ) on the conveyor ( 35 ) filed. Each of these pile layers ( 12 . 13 . 14 ) consists of at least a length of the supplied batt ( 20 ). Another pile layer (not numbered) is used in the example of 1 just above the third pile ( 14 ) piled up. In the same way, the laying process can be continued. From the third batt ( 14 ) is formed over the length of a homogeneous or uniformly formed web-shaped textile ( 10 . 11 ) receive.

The batt ( 20 ) has a cotton-like structure of unvarnished fibers with predominantly confused orientation. The in the batt ( 20 ) contained fibers ( 15 ), in the 1 in the pile ( 12 ) are shown by way of example and greatly enlarged, have a preferred orientation (VR). The preferred orientation (VR) can be introduced in any way. In particular, it may be produced by carding or combing the fibers, and the orientation of the preferred orientation (VR) is preferably along the extent of the fiber web ( 20 ), ie in the web direction.

As from the illustration in 1 is apparent, the withdrawal direction (AR) of the conveyor ( 35 ), the respective preferred orientation (VR) in each of the pile layers ( 12 . 13 . 14 ) as well as those of the Florableger ( 32 ) executed depositing movement parallel to each other or aligned collinear.

Furthermore, the two or more fibrous webs ( 12 . 13 . 14 ) preferably along the withdrawal direction (AR) of the conveyor ( 35 ) stacked on each other superimposed stacked, which in particular by a suitable coordination between the depositing movement of the Florablegers ( 32 ) and the withdrawal movement of the conveyor ( 35 ) is achieved. In the cross section of the stacked arrangement ( 11 . 21 ) results in a meandering shape.

4 shows by way of example a plan view and a side view on a stacked arrangement (FIG. 11 . 21 ), the in 1 used laying method is used. This laying method is characterized by the storage of (contiguous) belt loops ( 50 . 51 . 52 ) to form the two or more fibrous webs ( 12 . 13 . 14 ). The tape loops ( 50 . 51 . 52 ) are in particular to produce a ply between a trailing edge ( 53 ) of a lowest stored belt loop ( 50 ) and a leading edge ( 54 ) an uppermost loop of tape ( 53 ) filed. Due to the formation of the layer closure it is achieved that over the length of the web-shaped textile ( 10 . 21 ) in each section the same number of pile layers ( 12 . 13 . 14 ) is produced. Thus, by the ply conclusion a web-shaped textile ( 10 . 11 . 21 ) produced with a homogeneous over the length of fiber or fiber density or number of layers.

2 shows a cross-sectional view of the according to the laying method 1 respectively. 4 produced web-shaped textile ( 10 ). Here, in each section of the textile ( 10 . 11 ), three batt layers ( 12 . 13 . 14 ), wherein each of the fibrous webs has a lower loop part ( 50a ) and an upper loop part ( 50b ). Due to the scaled arrangement, the lower loop part ( 50a ) each have a greater extent in the direction of the withdrawal direction (AR) than the respective upper loop portion (FIG. 50b ).

The nonwoven fibrous web ( 20 ) is in the illustrated laying method of 1 . 2 . 4 laid as a continuous web and meandering, each of the belt loops ( 50 . 51 . 52 ) is offset in the withdrawal direction (AR) to the preceding belt loop.

5 and 6 show two embodiments of an alternative laying method. Here instead of tape loops separate pieces of tape ( 55 . 56 . 57 / 60 . 61 . 62 ) stored offset in the withdrawal direction (AR) to each other (longitudinal panels). Even when longitudinal paneling is preferably a layer closure between a stored trailing edge ( 58 ) of a lowermost piece of tape ( 55 ) and a front edge ( 59 ) of a topmost piece of tape (not numbered). In the example of 5 are the pieces of tape ( 55 . 56 . 57 ) each rectangular-shaped. In the alternative embodiment according to 6 have the pieces of tape ( 60 . 61 . 62 ) the shape of a parallelogram.

The stacked arrangement ( 21 ) from the deposited pile layers ( 12 . 13 . 14 ) is stretched in the direction of the matching preferred orientation (VR) regardless of the selected laying mode (longitudinal laying, longitudinal paneling or other). 7 illustrates the reorientation of the fibers produced by drawing ( 15 ).

In the left illustration of 7 is the stacked arrangement ( 21 ) before stretching. It contains, inter alia, a plurality of fibers ( 15 ) which are partially in preferred orientation (VR) and partially oriented in other directions. Those lengths of fiber aligned substantially parallel to the preferred orientation (VR) are highlighted in bold and are referred to as the fiber length (FL) along the preferred orientation (VR).

In the right representation of 7 is the stacked arrangement ( 22 ) after stretching. It has a stretched preferential orientation (VR ') parallel to the preferred orientation (VR) before stretching, as discussed above.

The stretched fibers ( 16 ) in the stretched stacked arrangement ( 22 ) correspond to the fibers ( 15 ) in the stored stacked arrangement ( 21 ).

As can be seen from the exemplary illustration in 7 shows that various lengths of the fibers ( 15 . 16 ) is reoriented by stretching to the stretching direction.

The reorientation in particular increases the proportion of the fiber length (FL), which is aligned along the preferred orientation (VR) or the extended preferred orientation (VR '). Furthermore, the portion of the fiber length (without graphic highlighting) which is oriented transversely to the preferred orientation (VR) or extended preferred orientation (VR ') is reduced.

By virtue of the technology disclosed, it is possible, in particular, for the fibers in the web-shaped textile ( 10 ) contained fibers ( 16 ) have a significantly increased preferred orientation (VR, VR ') at the end of the manufacturing process, so that significantly larger fractions of the fiber length (FL) contained are aligned along this preferred orientation (VR, VR').

3 shows a production plant according to the invention ( 30 ), which is shown in the upper half of in a cross-sectional view and in the lower half in a plan view.

The production plant ( 30 ) comprises at least one pile furnish ( 31 ), a Florableger ( 32 ) and a stretching device ( 36 ). It can also be an optional element (a solidification device ( 40 ). Furthermore, the production plant ( 30 ) at least one conveyor ( 35 ), which is designed here as a multi-part deduction tape.

The Florbbereitstellungseinrichtung ( 31 ) is to provide a (nonwoven) batt with a preferred orientation (VR) in the batt ( 20 ) contained fibers ( 15 ) educated. In the example of 3 she is trained as a card with a so-called tambourwalze. The tambour roller picks up a tangle of fibers from a fiber storage. The fibers may be combed or carded on the spool roller by suitable means to 20 ) to build. By a suitable removal device, for example, the doffer rollers shown, the batt ( 20 ) lifted off the spool roller and, for example, as a web-shaped batt ( 20 ) the Florableger ( 32 ).

The Florableger ( 32 ) is preferably designed as a longitudinal or Längstäfler. It can be a parallel to the preferred direction (VR) or the withdrawal direction (AR) movable laying carriage ( 33 ) and two or more moving belts between which the batt ( 20 ) is received and guided within the florable. In 3 these bands are omitted for the sake of simplicity.

The laying carriage ( 33 ) is adapted to the supplied batt ( 20 ) in a controlled manner on a conveyor ( 35 ) or already on previously deposited pile layers ( 12 . 13 . 14 ). It can be one of the in the 4 to 6 shown laying method or any other laying method can be used. The laying carriage is in particular moved back and forth parallel to the withdrawal direction (AR) or parallel to the preferred direction (VR), while the conveying device (FIG. 35 ) also in the withdrawal direction (AR) or the Preferred direction (VR) is moved. The offset length between the batt layers ( 12 . 13 . 14 ,) can preferably be determined by the ratio of the movement speeds of laying carriages ( 33 ) and conveyor ( 35 ).

In or in front of the Florableger ( 32 ) can a storage ( 34 ) are provided in which to compensate for differences in speed between the pile output on laying carriage ( 33 ) and the pile feed from the delivery device ( 31 ) ago a web section of the batt ( 20 ) can be temporarily recorded. In the example shown, the pile memory ( 34 ) formed by a movable or extendable belt loop.

The batt ( 20 ) can the Florableger ( 32 ) are supplied as a continuous Florband. Alternatively, the batt in the form of separate pieces of tape ( 55 . 56 . 57 / 60 . 61 . 62 ). The band pieces ( 55 . 56 . 57 / 60 . 61 . 62 ) can be formed in any way. For example, the pile preparation ( 31 ) already separate pieces of tape ( 55 . 56 . 57 / 60 . 61 . 62 ) provide. Alternatively, between the pile preparation ( 31 ) and the Florableger ( 32 ) a separating device can be provided, which has a continuous web-like batt ( 20 ) in two or more pieces of tape ( 55 . 56 . 57 / 60 . 61 . 62 ) parts. Such a separating device can also be used in the flea supply ( 31 ) or preferably the Florableger ( 32 ) be integrated. The cutting can be done by cutting according to a first preferred embodiment. According to a second preferred embodiment, the cutting can be done by clamping and / or tearing, resulting in more even transitions in the region of the leading and trailing edges (FIG. 58 . 59 ).

In the withdrawal direction (AR) behind the Florableger ( 32 ) is the stretching device ( 36 ) arranged. She is trained to work on the Florableger ( 32 ) formed multilayer stacked assembly ( 21 ) in parallel to the matching preferred orientation (VR). Behind the stretching device ( 36 ) is the web-shaped textile ( 10 ) as a stretched stacked arrangement ( 22 ) in front.

The stretching device ( 36 ) may have one, two or more stretching zones arranged one behind the other. Preferably, at least three draw zones are provided.

The formation of the stretching zones can be effected by any means. According to the preferred example of 3 can be two or more driven roller pairs ( 37 . 38 . 39 ), the stacked arrangement ( 21 ) is received and guided in each case between the rollers of these roller pairs. Alternatively, roll trios or other multiple arrangements of (driven) rolls may be provided. The following is a representative of roller pairs.

The roller pairs preferably have rising drive speeds in the conveying direction. In other words, the drive speed is in each case a roller pair following in the conveying direction (US Pat. 38 ) compared to the drive speed of a preceding pair of rollers ( 37 ) increased. Thus, between each pair of rollers ( 37 . 38 or 38 . 39 ) formed a draw zone.

The rolls may be formed as flat rolls between which the stacked arrangement (FIG. 21 ) is clamped if necessary. If necessary, the surface of a flat roller may be rubberized or have increased fiber adhesion by other measures. Alternatively, several or all rollers may have a garnish, that is, a shape deviating from a cylindrical surface. The garnish may for example be formed by provided on the roll surface projections, grooves, transverse grooves or the like. Particularly preferably, a garnish is formed by a profiled wire, which is mounted on the roller. Alternatively or additionally, garnish may be formed by stationary or movable needles on or in the roll surface. In other words, at least in the region of a draw zone, a stretching between garnished rolls can be carried out. Furthermore, in the region of at least one optionally additional stretching zone, a stretching between pinch rolls can be carried out.

The stretched stacked arrangement ( 22 ) may optionally be partially solidified. The partial consolidation can be carried out in any desired manner, in particular by needling, hydroentangling or thermobonding. In the example of 3 is shown a solidification device with a needle bar, on which a plurality of needles is arranged. The beam may be driven in an up-and-down motion and, if necessary, in a superimposed reciprocation along the direction of withdrawal (AR) to repeatedly force the needles into the stretched stacked configuration (FIG. 22 ) and pull it out again. By this needling individual fibers or fiber fractions are taken and with fibers thereof or an adjacent pile layer ( 12 . 13 . 14 ) confused or knotted.

Modifications of the invention are possible in various ways. In particular, all of the embodiments described, shown or otherwise disclosed features can be arbitrarily combined with each other, replaced with each other, supplemented or omitted.

The Florbbereitstellung ( 31 ) can also be formed by a Rüttelschachtspeiser or a feed shaft. Alternatively, a provisioning device can store a fibrous web stored, for example, between tapes and prefabricated ( 20 ) and the Florableger ( 32 ) respectively.

There may be two or more fibrous webs ( 20 ) of one or more pile fabrications ( 31 ) and to one or more Florablegern ( 32 ). This multiple bast ( 20 ) through the one or more Florableger ( 32 ) parallel, overlapping or sequential to form the stacked array ( 21 ) are stored.

The batt ( 20 ) preferably consists exclusively or predominantly of carbon fibers, aramid fibers or glass fibers. Alternatively, another fiber material may be provided which is suitable for the production of fiber reinforced composites.

According to a preferred embodiment, the batt ( 20 ) may be formed at least partially from a fiber material which acts as a matrix former in the manufacture of a fiber reinforced composite material. This fiber material may in particular be a meltable plastic. Such a fiber fraction can also be used to partially consolidate the stretched stacked arrangement (FIG. 22 ) are used by thermobonding.

LIST OF REFERENCE NUMBERS

10

Web-shaped textile

11

stacked arrangement

12

batt layer

13

batt layer

14

batt layer

15

Fiber in a pile

16

stretched fiber

20

Fibrous, web-shaped

21

Stacked arrangement filed

22

Stacked arrangement filed and stretched

23

Stacked arrangement filed, stretched and partially solidified

30

plant

31

Florbbereitstellung / card

32

Florableger / longitudinal / Längstäfler

33

laying carriage

34

web storage means

35

Conveyor / Deductor

36

stretching device

37

First pair of rollers

38

Second pair of rollers

39

Third pair of rollers

40

Hardening device / needle machine

50

First strap loop

50a

Lower loop part

50b

Upper loop part

51

Second strap loop

52

Third band loop

53

trailing edge

54

leading edge

55

First piece of tape rectangular

56

Second piece of tape rectangular

57

Third piece of tape rectangular

58

trailing edge

59

leading edge

60

First piece of tape with parallelogram shape

61

Second strip of tape with parallelogram shape

62

Third strip piece with parallelogram shape

AR

Discharge direction / conveying direction

FL

Fiber length along the preferred orientation

VR

Preferential orientation in pile position

VR '

Preferential orientation after stretching

Claims (20)

Web-shaped textile comprising a stacked arrangement ( 11 ) of several fibrous webs ( 12 . 13 . 14 ), wherein in each batt ( 12 . 13 . 14 ) a preferred orientation (VR) of the fibers contained therein ( 15 ), characterized in that the plurality of fibrous webs ( 12 . 13 . 14 ) are piled up with a common preferred orientation (VR), and that the stacked arrangement (FIG. 11 ) is stretched, so that in the web-shaped textile ( 10 ) contained fibers ( 16 ) have an increased preferred orientation and / or so that the ratio of the longitudinal tensile strength of the web-shaped textile along the preferred direction relative to the transverse tensile strength is at least 4 to 1. A process for producing a batt-based web-like textile comprising the following steps: - providing a batt ( 20 ) with a preferred orientation (VR) of the fibers contained therein ( 15 ) and feeding the batt ( 20 ) to a Florableger ( 32 ); - Through the Florableger ( 32 ): Formation of a web-shaped stacked arrangement ( 11 . 21 ) of several fibrous webs ( 12 . 13 . 14 ), whereas in the stacked fibrous webs ( 12 . 13 . 14 ) contained fibers ( 15 ) have a matching preferred orientation (VR); Stretching the stacked arrangement ( 11 . 21 ) in the direction of the matching preferred orientation (VR). Method according to claim 1, wherein the depositing direction of the pile divider ( 32 ) for stacking the batt layers ( 12 . 13 . 14 ) is aligned parallel to the matching preferred orientation (VR). A method according to claim 1 or 2, wherein the batt ( 20 ) on a conveyor ( 35 ), in particular a draw-off belt, and wherein two or more stacked fibrous webs ( 12 . 13 . 14 ) along the withdrawal direction (AR) staggered overlapping one another. Method according to one of claims 1, 2 or 3, wherein the batt ( 20 ) on a conveyor ( 35 ), in particular a draw-off belt, and wherein two or more fibrous webs ( 12 . 13 . 14 ) in a direction parallel to the withdrawal direction (AR) of the conveyor ( 35 ) running back and forth as tape loops ( 51 . 52 . 53 ) and offset in the withdrawal direction (AR) offset from one another, in particular in each case with the production of a layer closure between a stored trailing edge ( 53 ) of a lowermost belt loop ( 50 ) and a front edge ( 54 ) an uppermost loop of tape ( 52 ). Method according to one of claims 1, 2 or 3, wherein the batt ( 20 ) on a conveyor ( 35 ), in particular a draw-off belt, and wherein two or more fibrous webs ( 12 . 13 . 14 ) in a direction parallel to the withdrawal direction (AR) of the conveyor ( 35 ) extending movement as separate pieces of tape ( 55 . 56 . 57 / 60 . 61 . 62 ) and offset in the withdrawal direction (AR) offset from one another, in particular in each case with the production of a layer closure between a stored trailing edge ( 58 ) of a lowermost piece of tape ( 55 ) and a front edge ( 59 ) of a topmost piece of tape. Method according to claim 6, wherein the band pieces ( 55 . 56 . 57 ) are essentially in the shape of a rectangle. Method according to claim 6, wherein the band pieces ( 60 . 61 . 62 ) have substantially the shape of a parallelogram. Method according to one of the preceding claims, wherein the batt ( 20 ) is formed at least predominantly or exclusively of carbon fibers, aramid fibers or glass fibers. Method according to one of the preceding claims, wherein the batt ( 20 ) is at least partially formed from a material which acts as a matrix-forming agent in the production of a fiber-reinforced composite material, in particular from a meltable plastic. Method according to one of the preceding claims, wherein the stretched stacked arrangement ( 11 . 22 ) is partially solidified, in particular by needling, hydroentangling or thermobonding. Production plant for producing a fiber-pile-based web-shaped textile ( 10 ) according to any one of the preceding claims, wherein the production plant comprises: - a Florbbereitstellungseinrichtung ( 31 ) for providing a web-shaped batt ( 20 ) with a preferred orientation (VR) in the batt ( 20 ) contained fibers ( 15 ); - A Florableger ( 32 ), which is adapted from the Florbbereitstellung ( 31 ) supplied batt ( 20 ) in several fibrous webs ( 12 . 13 . 14 ), each with a matching preferred orientation (VR) in the batt ( 12 . 13 . 14 ) contained fibers ( 15 ) on a conveyor ( 35 ) pile up; A stretching device ( 36 ), which is adapted to the multilayer stacked arrangement ( 11 . 21 ) in parallel to the matching preferred orientation (VR). Production plant according to the preceding claim, wherein the Florableger ( 32 ) is designed to have two or more fibrous webs ( 12 . 13 . 14 ) along the withdrawal direction (AR) of the conveyor ( 35 ) Stack each other scaled over stacking. Production plant according to claim 13, wherein the Florableger ( 32 ) is designed to have two or more fibrous webs ( 12 . 13 . 14 ) in a direction parallel to the withdrawal direction (AR) running back and forth as band loops ( 50 . 51 . 52 ) lay down (longitudinal), in particular in each case while producing a layer closure between a trailing edge ( 53 ) of a lowest stored belt loop ( 50 ) and a leading edge ( 54 ) an uppermost loop of tape ( 53 ). Production plant according to claim 11, wherein the Florableger ( 32 ) is designed to have two or more fibrous webs ( 12 . 13 . 14 ) in a direction parallel to the withdrawal direction (AR) of the conveyor ( 35 ) extending movement as separate pieces of tape ( 55 . 56 . 57 / 60 . 61 , 0 62 ) (in particular in each case while producing a layer closure between a deposited trailing edge ( 58 ) of a lowermost piece of tape and a front edge ( 59 ) of a topmost piece of tape. Production plant according to one of the preceding claims, wherein the stretching device ( 36 ) has a plurality of stretching zones arranged one behind the other. Production plant according to one of the preceding claims, wherein the stretching device ( 36 ) two or more driven roller pairs ( 37 . 38 . 39 ), wherein in particular the drive speeds in each case one subsequent in the conveying direction of roller pair ( 38 ) compared to the drive speed of a preceding pair of rollers ( 37 ) is increased. Production plant according to one of the preceding claims, wherein the stretching device ( 36 ) is adapted to perform a stretching between garnished rollers. Production plant according to one of the preceding claims, wherein the stretching device ( 36 ) is adapted to perform a stretching between pinch rollers. Production plant according to one of the preceding claims, wherein the floret supply ( 31 ) is a card, a Rüttelschachtspeiser or a feed chute.

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