WO2019011482A1

WO2019011482A1 - Woven fabric structure

Info

Publication number: WO2019011482A1
Application number: PCT/EP2018/050865
Authority: WO
Inventors: Manfred Leibold; Patrycja Bosowski-Schönberg; Christian Callhoff
Original assignee: Low & Bonar Gmbh
Priority date: 2016-07-14
Filing date: 2018-01-15
Publication date: 2019-01-17
Also published as: DE102017115912A1; EP3652369A1

Abstract

The invention relates to a woven fabric structure and to a method for producing the same, in which structure double layers are provided in some sections in the warp direction and/or in the weft direction, the woven fabric plies that form the associated double layers being woven together at least at two or at three of their longitudinal edges and/or end edges, characterized in that, in the region of the plies that form the associated double layers, threads (supporting threads) which extend perpendicularly to the warp direction and to the weft direction and which hold together the plies that form the associated double layers are provided.

Description

tissue structure

Description:

The present invention relates to a fabric structure and a method for producing such a fabric structure.

One or more multi-layered tissue structures are known and are u.a. used for the production of bags or pocket-like inserts.

^"Ash-like structures, which are applied to the fabric, are known in 'erschiedensten designs and dimensions. A disadvantage of all these known containers is that usually the bag or the pocket-like slide after preparation of a fabric layer in this

Fabric layer made up, for example, must be welded, and thus a two-ply tissue in two steps - ie weaving a layer and Aufkonfektionieren a second layer - arises.

This problem is solved, for example, in DE-A1 -4419410 in that in a foldable and / or rollable textile web, the fabric in the region of the pockets is designed as a two-ply hollow fabric and therebetween, however, as a single-ply flat fabric.

The fabrics of DE-A1 -4419410 are subsequently coated.

For a whole series of uses - as also stated in DE-A1-4419410 - a coating of the fabric structures is necessary to them, for example opaque to light, resistant to external influences such as humidity or temperature, or simply for aesthetic reasons.

In the prior art are different coating methods for

Tissue structures known, such as lamination, laminating, brushing or calendering.

Each of these coating methods makes different demands on the material to be coated and, depending on the surface structure, pressure or heat stability of the fabric structure, can sometimes be used only to a limited extent or even not at all.

Oer invention is therefore an object of the invention to provide a fabric structure of the type mentioned in the beginning, their production is simple and inexpensive st and in particular can be easily and inexpensively coated. Furthermore, it is an object to share a fabric structure that allows pockets or pocket-like inserts to also be made

various sizes by means of an economic process to provide.

This object is achieved in that along the

Fabric structure in warp and / or weft direction in sections

Double fabric are provided, wherein the fabric layers forming the respective double fabric at least two, or at three, their longitudinal and / or end edges interwoven and are firmly bonded together in this way, wherein this fabric structure according to the invention is characterized in that in the area of the respective double-fabric-forming layers are provided perpendicular to the warp and weft directions extending threads that hold together the respective double-tissue forming layers. Thus, according to the invention, an initially two-dimensional fabric structure is present.

The vertically extending threads - so-called support threads - are significantly less tear-resistant, eg thinner, than the other threads forming the fabric structure or filaments and preferably have less than half, more preferably only one-third, of their tear strength.

These support threads preferably extend approximately every 5 mm in the area of the fabric layers forming the respective double fabric, and this spacing can also vary significantly, depending on the size of the double fabric areas.

The fabric structure thus obtained is two-dimensional and flat as described. By using the support threads, which hold the double fabric areas closely together, virtually no change in thickness is visible in this area.

As a result, the fabric structure according to the invention can be used as a raw fabric with illen common coating method even with any size of

) fabric surfaces can be further refined.

After the coating has been completed, the supporting threads can be cut with a knife

be air cut or - which is particularly preferred - simply "blown up" with compressed air.

By removing the support threads arise from the previously through them

held together double fabric layers or in their place bags or pocket-like slots.

Due to the fact that the fabric structure according to the present invention is initially virtually completely flat, a sliding, sliding or

Puffing of the pockets during coating, painting or embossing thus successfully prevented.

Thus, the fabric layers forming the double fabric are initially parallel to each other and form a two-dimensional structure.

According to the invention, the fabric can then be coated, so that the double fabric layers are provided on their respective outwardly directed sides with a coating agent. After coating, the fabric layers forming the double fabric are formed from their two-dimensional arrangement into a three-dimensional structure, so that pocket-shaped inserts are formed, which have a cavity with at least one opening or an engagement. These inserts are connected at the lateral or longitudinal and / or end edges with the tissue and thereby limited.

For fabric fabrication, all classical and known bonds can be used, e.g. Twill, canvas or satin weave.

The materials making up the fabrics are also not limited and may be quite different depending on the field of use of the fabrics of the invention. Thus, e.g. Fabrics for the home textile sector are made of jumbon, viscose and the like. For the exterior, and also for industrial applications, fibers and filaments are generally IUS polymers, such as polyethylene, polypropylene, polyacrylonitrile,

Polyethylene terephthalate, polyamide or aramids, carbon fibers, glass fibers and fibers of ultra-high molecular weight polyethylene (Dyneema) are preferred. The person skilled in the art is easily able to select suitable materials.

The choice of the coating itself is not limited in principle and only dependent on the intended use and the

Field of application of the tissue. Particularly preferred according to the invention

Coating agents polyvinyl chloride (PVC), silicone, polyurethane, acrylate,

Polyethylene and polypropylene. A simultaneous use of transparent and non-transparent colored coating agent is possible. Of course, the fabric structure - also preferably before loosening the support threads - even with an additional coating,

preferably provided with a silver finish on the front of the fabric structure to serve on the one hand a Blockoutvariante the light irradiation and on the other hand to act as a light reflector to the back. Preference is also given to coating compositions which contain so-called low-emission components.

Likewise, the coating can be embossed, which leads to a considerable enlargement of the (functional) surface.

The fabric structure according to the invention is suitable after release of the

Support threads especially for receiving illuminants, e.g. LEDs, which - inserted into the slots - can serve for better visibility and safety on the one hand, but can also serve as a decorative illumination on the other.

^" An exemplary area of application lies in fabrics for awnings, parasols and textile architecture (facades)

"Ash fabric with LED illumination and heating elements suitable.

Of course, the pocket-like openings are also eminently suitable for accommodating material other than electronic components.

Exemplary here isolation materials, such as foams,

Insulating materials but also called heating elements.

Further preferred application areas for the tissue structure according to

Coating and opening are underfloor heating, sensor function as

Pressure sensor: e.g. in nursing homes in the floors, as solar cell integration and

LED line integration for TV pictures.

In addition, other preferred applications for the fabric structure: filled with sand as flood protection, as so-called "heat harvest", ie by warming up stored liquids, such as water, in a similar manner as in solar systems or filled with air, for example in so-called bouncy castles ,

The invention is also directed to a process for the preparation of a

directed two-dimensional fabric structure in which two or more

Fabric layers are superimposed, so that sections Double fabric arise, which are interwoven with each other at least two, or preferably three, of their longitudinal and / or end edges, after which the

Double fabric forming areas with threads perpendicular to the warp and

Weft direction of the fabric layers run, be woven.

Preferably, the perpendicular to the warp and weft threads extending less than half, more preferably only a third, the

Tear strength of the fibers or filaments used for the fabric layers.

In the method according to the invention, it is further provided that the fabric structure produced in this way is provided with a coating which is applied by means of calendering, ^" lamination, lamination or preferably by brushing.

According to the invention, to achieve a three-dimensional structure, lie perpendicular to the warp and weft direction of the fabric layers extending threads are then cut open with a knife or torn with compressed air pressure, thus subsequently pocket-shaped bays.

The invention will be explained in more detail with reference to the figures described below.

1 shows schematically a pocket fabric according to the invention before the coating, and FIG. 2 shows a pocket fabric according to the invention

Application of the coating agent - not shown in FIG. 2 itself.

Fig. 1 shows the fabric 1, which forms the double fabric 2 in the dotted section with a further fabric layer. In FIG. 1, the two fabric layers of the double fabric 2 are still largely parallel and are connected to the support threads 3 in the regions. The insertion is so narrow that in practice it is barely perceptible (shown greatly exaggerated in the drawing). The difference in thickness between fabric layer and

Accordingly, double tissue is low to none (in the two-dimensional range). Fig. 2 shows the same pocket fabric after application of a coating agent (not shown here) and dissolution of the connection by the support threads. The two fabric layers forming the double fabric 2 are separated after the coating or "blown up" by means of compressed air and then form a three-dimensional structure in these areas The double fabric 2 is laterally connected to the fabric 1, it can - depending on the application - only one or open on two sides (forward or backward).

The sequence of tissue and double tissue can be repeated as often along the structure and is only due to the corresponding purpose. The size of the pockets or pocket-shaped inserts formed thereby can also be varied to a great extent.

) FIGS. 3 to 5 show enlargements of the fabric structure according to the invention, in each case from different perspectives or at different magnifications. : Ig. 3 shows that in the connected state, ie with intact connecting threads _^ supporting threads), the fabric structure is practically two-dimensional.

FIGS. 4 and 5 show the position of the supporting threads and their dimension in FIG

Relation to the threads forming the fabric layers and filaments.

The invention is explained in more detail below:

When the pockets are in the warp direction, care must be taken that not only does the pocket dimension have the same thickness as the backing, but also does the warp tension in both fabric areas (backing and double weave = pocket) be nearly equal. Only in this way is it possible to continuously wind up the raw fabric, and even more so the coated goods, without the formation of bales forming "hills" or "valleys".

To achieve this, the warp threads come in the prior art of two warp beams. This can be a different incorporation of the two

Tissue areas (basic tissue and bag) are balanced. To be able to weave with only one warp beam and still one same

Fabric thickness and warp tension in the base fabric and in the area of the pocket to be able to realize this, a special bond was developed. This bond is characterized by the fact that the basic fabric also consists of many small pockets, which are rotated by 90 ° (ie in the weft direction). Thus, the base fabric and the pocket region basically consist of the same weave. The uniform thickness and tension is guaranteed. The binding thus formed has strong ribs in the weft direction in the base fabric (FIG. 6: weft cut - basic fabric with a hard transition). These can be reduced by the fact that the warp threads in the base fabric do not all form the "pocket" at the same time, but offset it, one behind the other set in ^. Fig. 7: Weft cut - base fabric with a soft transition.) The pocket in the round fabric is thus "hidden" and the appearance of the background tissue is much more homogeneous (FIG. 8: a shot in the area of the pocket).

Claims

claims:

1 . Fabric structure in which in the warp and / or weft direction sections double fabric are provided, wherein the respective double fabric forming fabric layers are woven together at least two, or at three, their longitudinal and / or end edges, characterized in that in the region of the respective Double fabric forming layers are provided perpendicular to the warp and weft extending threads (support threads), which hold the respective double-fabric layers forming.

2. The fabric structure according to claim 1, characterized in that extending perpendicular to the warp and weft threads less than half, more preferably only one-third, the tensile strength of the fibers or filaments used for the fabric layers have.

3. The fabric structure according to claim 1 or 2, characterized in that the fabric structure by means of one and / or more coating agent (s) is coated.

4. The fabric structure according to claim 3, characterized in that is used as a coating agent PVC, silicone, polyurethane, polyethylene, acrylate and polypropylene in different color properties.

5. The fabric structure according to one of the preceding claims, characterized in that the fabric layers fibers and / or filaments of cotton, viscose, polyethylene, polypropylene, polyacrylonitrile,

Polyethylene terephthalate or polyamide included.

6. The fabric structure according to claim 4, characterized in that the two fabric layers forming the double fabric are made of different fibers or filaments.

7. The fabric structure according to any one of the preceding claims, characterized

characterized in that the double fabrics form three-dimensional structures after removal of the supporting threads.

8. The fabric structure according to claim 7, characterized in that the three-dimensional structures are pocket-shaped or formed as pockets.

The fabric structure according to claim 7 or 8, characterized in that in the three-dimensional structures electronic components, e.g. LEDs or foams are inserted.

10. The fabric structure according to one or more of the preceding claims, characterized in that it is subjected to a silver finish.

1 1. A method for producing a two-dimensional fabric structure, in which two or more layers of fabric are superimposed so that sections arise double tissue, which are woven together at least two, or preferably three, their longitudinal and / or end edges together, whereupon the double tissue forming areas with Threads that run perpendicular to the warp and weft directions of the fabric layers to be woven.

12. The method according to claim 1 1, characterized in that the

perpendicular to the warp and weft running threads less than half, more preferably only a third, the tensile strength has on the fibers or filaments used for the fabric layers.

13. The method of claim 1 1 or 12, characterized in that the fabric structure thus produced is provided with a coating which is applied by means of calendering, lamination, lamination or preferably by brushing.

14. The method of claim 1 1 to 13, characterized in that the perpendicular to the warp and weft direction of the fabric layers running threads then cut with a knife or with

Compressed air pressure are torn and thus form pocket-shaped slots.

15. Use of the tissue structure according to one or more of

previous claims in awnings, parasols, textile

Architecture, in truck tarpaulins, underfloor heating, as pressure sensor, as solar cell integration or LED line integration for TV pictures.