DE1560673A1 - Nonwoven textile fabric and process for its manufacture - Google Patents

Description

\ i-

Description
Patent application of the

SPIM.iBRS-tlMITfiD, Pontypool »Monmouthshire Great Britain

concerning
Textiistpff and procedure for his

May 28, 1904 - Great Britain

ΏΧ & E ^ fiMuBg refers to nielitfewebte taxil fabrics ι 4 in £ a VaritaSLrea au 'their. Manufacture, refer to oils

lere on iiiaiii ^ e ^ ebta ¹ Je ^ tils toff β with ninar rieuari ät calls ar iiml advantageous Sigenacliaf fran -und uuf

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OB) OtNAL

the production of such textiles from synthetic fabrics, each comprising a structure of loosely arranged fibers and one or more soles made of a thermoplastic film.

It is known that non-woven fabrics and sheet-like fabrics Materials can be produced duroh joining together of fibers in the form of lOBe-bound fiber webs, which then stabilized by pricking in a chair with some of the fibers oriented in the direction of the diameter in the fibrous web. The strength and the disienoslonal durability of these non-woven fabrics Text ils fe OfJTe and the sheet-like materials depends entirely on the fiber entanglement and the associated Frictional forces from, which is obtained by the lancing effect. In practice it has been found that acceptable strength and dimensional stability are only achieved at high stitch densities can be obtained, which is defined as the number of needle stitches given by the Pasorbahn per unit area will. This high stlohdiohfea prevents the flexural calfc and the stretchability of the textile fabrics, which as a result of which a little bit is stiff and fried. I also need them zur ßrai-jiüag enfcaprechöml larger

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1B60673

and so that they can be passed through the chair at a slow speed with acceptable strength and stability, or they must be passed through the chair if higher speeds are used. Whatever technique is also used, in any case, the productivity is low and the process expensive. In addition, the textile fabric is not only stiff and board-like, but it also lacks uniformity, it contains many irregularities and generally eliminates an irregular character. These deficiencies often give way to the fact that the hosts are often so well informed Verwertberkeit affect the fabrics, eind the consequence of considerable displacement and VerrOokung you ffeeern Sn a Faeerbehn when it is engraved in the absence and in einus TrÄßennateriale Torliegen the fibers in the Lehn in a loosely bound state.

The aim of the present invention is to provide a non-woven Textile eu create, which especially sur production of ceilings and similar liohea, and which of one Faeeraufba-i is obtained by pricking the same, and in which the contribution, the tensile strength and dimensional ... Be8tfindlekelt by the resulting from the piercing

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the fibers are cleaned , reinforced in a new, advantageous and simple way »

Other objects of the invention include the means and methods by which these various ends are achieved can become apparent from the following description and the accompanying drawings «

According to the invention, a non-woven textile fabric is first used suggested which one from a fiber structure, at least one formed from a separate thermoplastic film 8ohioht and at least one made of reinforcement material formed layer is susan & engesetst, with the layers made of thenoplastic foil and reinforcement material or less parallel to and between the surfaces of the fibrous structure, and with some fibers of the Faeeretmktur arranged in parallel planes su their surfaces are and other fibers of the fiber only in the braid of the Dordneseer of the same arranged and duroh the layers of thezBoplaatlsoher foil and reinforcement material extend

In a special and preferred modification of the invention

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according to niefetgeirebtesi fextiletöff® is you Foil glued, whereby fibers innex & alb of the fiber structure BUILT TOGETHER

When the thermoplastic film is made tacky, the film can be destroyed and then the adhesive can be distributed through the entire fiber structure. take place. J @ äoeh has a tönhüllen the fibers and © in accumulating voe adhesive in the ^ aöe ^ ÄviBOhenräiasen in allgeiaeisien a sdiidliehen influence because "appearance ναοά the £ Lgess @ iiaften of Montjgewebten received Sesstiletoffe, ewar uad particular characteristics vie handle" and drape "Rfäi? I ^ k9it * Me dissolution of the film with a TtriaiUpftesi distribution of adhesive is therefore often tmesHtineeht" Aue this "@x" inde vixa it often preceded that the adhesive bonding of the thermoplastic film while maintaining the film foils and under local conditions de? glued thessoplaetisohen foil as a separate ori9rte Sohi®ht is formed _f the perforated Sohio & t a ^ hr or less parallel to the surfaces of the ^ & s «ratruktm? is arranged «

Qom & B of the present & Q Swindling will continue for Mn min to heretellußg eis & es niolitTesvebten textile fabric β

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- BAD ORIGINAL

Complaint, which is carried out by the fact that Ben produces a layer structure which contains a structure of relatively loosely bound fibers, at least one layer consisting of a reinforcing textile and at least one layer consisting of a separate thermoplastic film, and that one The sole structure stands out so that the fibers of the fiber structure are forced to turn through the color reinforcement and the thermoplastic film. Although the non-woven textile fabric produced in this way is a »sueaomien-containing integrated structure _v which can be easily transported and which often directly from Elnu? Is purely useful for applications, it is said that the thermoplastic film or pollen contained therein are sticky. As a result, the pricked product can be subjected to a corresponding treatment »including making the tarnish> plaatleche film sticky, whereby the pricked fans are held in their position The film has lost its pollution and it can be absorbed into the fiber structure. However, as it was already indicated above, it should be avoided that it is detached in it as a separate perforated sole, which is more or less parallel to the surface.

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surfaces of the faeery structure arranged

The Faeeraufbaa. can au "a einsigen layer ans verhältniiacÄaeig Löe getrmidenen fibers beeteheu, welohe mm one or from a VielBahl τοη Faeerbahnefi is obtained in which the Sohiohtetrulctur ia generally three S skins having & tiohten and AiAF in äuaeeret eifeekaäeeiger Ifeiee by Uhersinanderlegen the fajwreel & ioai consisting Teretärkimg and thermoplaetieohe Foil Iteeteheiide sveiHseiieMige Susa »- nenetellusg is formed · In such a structure isaan the FaeersQhioht either the foztiletoff or thezaoplaetiaeha foil tHnruhrtn. M® SohiülitstralEtcr »la weloher ~ the Faeersohioht effekt ir dmsih di® m & wm will wear, is then carried out by a
led "During the Steohoperation the Badeln do not hit the Faeereon and then the other Schlehtasa, so that the fibers from the fiber & hioht through these other Sohiohts are passed through."

In the case of the engraved product, the contribution "the uxOh die raeerrereohlingQagydie a consequence of the sticking * let" sar resistance and diHeneionellen BeetSndigiDeil is galeietst, through the from the theräoplaetieohen foliü and the 7er-

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increasing the pressure exerted on it. Bas engraved Product has a greatly increased elasticity, thin slonelle Resistance and extremely improved tear resistance. Occasionally it is directly ala non-woven fabric Brownable, but in general it is preferred to treat the thermoplastic film contained therein by treating the product to make it sticky in a suitable manner. If the sticking is done in the preferred manner, i.e., while retaining the foil shape, "then contains the resulting nonwoven fabric have the same layers, and the same layers are in the same way as la pricked product arranged.

Instead of a single fiber layer, the fiber structure can consist of "four layers of filamentous fibers loosely connected, each of which can be obtained from a fiber web or a plurality of fiber webs laid one on top of the other four-layered layer structure typically includes the two fiber layers as outer layers and a layer of a aas themoplaetisohen film and a layer of a reinforcement _t between the two fiber layers

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laid are “Di © fivef ^ sohiohtage visual structure has aweokmäseigerweise one of» white structures. In both cases, the outer splints are made up of ae @ rschlaten ₉ twosohen, which in an Aitfbau a base structure is laid, which consists of a Schioht from a stiffening swiscihen and thermoplastic Follensohten, and in the other structure is a Schiolitg © biM® set daswisobsn _f which consists of a layer aue tnermoplastiaoher film sswieohen two Verateifungeschiohten consists · the Seiiichtsiruktür is then gestoohen in a nerk & misllchen SadelBtuhl and awar preferably from both sides · the gestoohfae Texfcilßtofi obtained from a Sohiohtetrukto ^ _y in weloiier aue the äueseren Sehlohten Paeerscshichteii are formed * can have two types of structure, depending on the depth to which the needle penetrates the sole structure in the course of the Steähoperatlon. A structure which is obtained when the thread is chosen so that the needle penetrates into the layer of fascia that is located opposite the needle, but does not go beyond this seam, consists of a fiber structure which itself is made of white separate fiber soles are built up, which are made of thick fibers, which are

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are arranged, and furthermore from a number (at least two and generally sswel or three) layers of a thermoplastic Foil and a reinforcing fabric. The other structure which is obtained "if the depth of the puddle is chosen so that at least a portion of each needle through the fiber layer protrudes, which is opposite to the fiber layer hit first, is similar, with the difference that it is sueatzlioh too the two fiber layers the fiber structure one or two Contains shifted in case the schioht structure this way was pricked from both sides, the bind arranged so that a layer of tufts of fibers ice the outer surface of the textile fabric, wherein the textile fabric with one or Has a pile-like surface · If the fabric has a pile-like surface, it has both seldom have the same appearance and are therefore reversible.

The stitched fabric can then be treated to make the thermoplastic film tacky as well as there Hebrigmaohen carried out as a precautionary measure without losing the shape of the film the resulting light-woven fabric have the same layers, and the layers can be arranged in the same way as la stitched fabric.

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? In the obenbesähriebenen SeMi & tetyafeterea s AEM di © tfeesmoplaatieohe film Tinö ft ^ stistomg is - "büßacsMjar arranged» © V imn the SoMohtstriiaktism from sia © r Faeeraohiafet or AOFI awei -.. Fae @ rsefei © Mt®si QzhMmi were However, it can Also other® SeMohtetrukt ^ sa "h @ i äer Er" ingeniously 7 @ rvendet "earth, where the © therm © pXasti®oh © Folie 'and the feretärkuitg a distance from the siiianäea» ayfweiaoB. Baiepieißwaise can the Yerstärkong iamarhalh eiaer Taese ^ t ^ u during their H © retelli2ag embedded vss ^ ei ^ ma AeM Mm v the

is »Mesaa M.® feSfetaÄiiag di® tor® edaes Sestilstoffs shows» can, they are included in the ο ÄeiaöplastisA® töli® during manufacturing

Before with a? «Eiteraoi g« n »aisa Beacstufeilmns ä @ x> woven sextile fabrics and the process evr manufacturing% of the « The same is continued »becomes sveoksi ^ rleißkfeerwäg dee Did you give a definition? in this and given to the adepts of etching pressures

The Auadruok "Höbrigwerden ·· is Terwendet" dew the Ixmg the Klebeeigensohaf th diarcsh a mitBpr ^ ämaä lung su besohrelben, velolie in the film theraoplaetieohen

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are hidden. The expression "glued thermoplastic film" refers to a film, the Kiebeelgensohaften duroh such treatment has been developed, and in particular the ability to form adhesive bonds with piping "

The expression "relatively loosely bound fibers" is used used to indicate that individual fibers are in the fiber structure leioht Can be moved in relation to one another and cannot be held in excess, for example duroh connecting neighboring fibers

The term "reinforcement" refers to threads, for example Garn3 or individual cases, which in the non-woven Textile In the form of independent elements or in the form of one Hetzes or a woven or knitted fabric.

The term "fiber" includes continuous filaments when the Context does not indicate that only short staple fibers are meant are"

The fiber web used for Biginn can be made from any type of fiber be made of natural or synthetic,

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suitable for use in the preparation of non-woven fabrics, examples of such fibers include: cotton; Silk; Full; Cellulose fiber », including those obtained from cellulose esters such as 2.B, cellulose acetate»; Polyamide fibers such as polyhexamethylene adipamide fibers and polycaproamide fibers. Polyester fibers such as a * B. Polyethylene terephthalate; Acrylic fibers such as sB Himmel ⁿ and ^M Orion ".

If necessary, special fibers can be incorporated into the fiber web, which can be used at any stage of the process in the manufacture of non-woven fabrics Capable of curling, stretching, or shrinkage are or are subject to change in shape in any other way

When incorporating ton loräuelbaren fibers in the initial Fiber web »which after piercing and bonding treatment or also to be curled during the last treatment: the layer structure containing the fiber web is subject to »is beeoaders beneficial for enhancement the internal bond strength; this is a consequence of the fiber tersohlingong » which results from the utterance. Leg textile

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This also gives the material excellent openness and porosity granted. Heterofilaments, the bind fibers, which two or contain more polymer components over the length of the Fibers arranged in a joint nio that is attached to one another. Bind a particularly suitable class of crimpable fibers. Non-woven fabrics, which are crimped fibers and a contain glued thermoplastic film and in which the advantageous properties of the development of the FaeerversohlinguDg the properties obtained by crimping reinforce or complement, which are obtained by the presence of the glued thermoplastic film in the fabric, are described in the British patent.

As for the incorporation of crimpable threads, the following curled, as far as is concerned, the subject matter contained in the above-mentioned patent specification is also in this description to read. .

The fiber web can be produced by air separation of fibers, duroh garnetting process, by Bardleren of Fibers with subsequent cross-laying of the carded Webs, by wet papermaking processes, and in general

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by any method by which a web of loosely connected Fibers can be made. To some extent, the method used depends on the length of the one to be processed Fibers dependent.

The fiber layer or layers that make up the fiber structure is composed and which in turn consists of one or more such fiber webs, generally has a weight over 14 g / m and preferably not less than

35 g / m »so that the weight of the original fiber beam in Dependency one used weight of the fiber tile and the number of such webs used in the manufacture of the same is chosen. Appropriately there is fluctuations

Worn to the original fiber web swlschen 35 mad 525 g / m

The choice of material for the ther & oplaetisohe foil is not critical, and it can.any theznoplastisohee material which is capable of becoming tacky under conditions that do not damage the fibers in the fiber structure influence. The thermoplastic film can be made of different Materials such as regenerated cellulose, cellulose esters such as cellulose acetate. Polyethylene, polypropylene, polyesters, polyamides, Viaylver-

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bonds, such as polymerized vinyl chloride, or their Mixed polymers, made from an elastomeric polyester urethane, such as e.g. the polyester urethane described in the British patent application and furthermore made from natural or synthetic rubber. A benefit of using thermoplastic films for the adhesive bond of fibers is the possibility that materials can be used which would not normally be used in this context, for example because of their inability to act to be prepared in a suitable form for the application (for example as an emulsion or solution).

Me thickness of the film used depends on the contribution to the Strength and dimensional stability of the textile from, which they provide either in their preferred form as a separate layer or in distribution over the entire structure target. In general, the beading of the film corresponds to which, of course, consists of a number of layers on top of one another laid thinner foils can be made, two to several 100 wt. - # of the fiber structure.

Another advantage of using thermoplastic films to glue fibers together is that they are a

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allow precise control of the amount of adhesive incorporated.

The reinforcement preferably consists of an open textile material, This is a textile fabric made from a multitude of strands of equal length that are separated from each other, have a lateral distance in relation to the Width of the strands is large so that openings are created between adjacent strands. The presence of such openings in the reinforcement facilitates passage of the needles and the fibers grasped by the needle whiskers. Dec »open textile fabric can be made from a grosean Group I ext! Materials be selected »such as: woven Textile θ with a canvas!) Ssdung, a twist weave or another bond, like kB * a Gaz »Scrim or Voile, with a different degree of opening of the fabric, and knitted fabrics, such as β.B. Spitee, a. Scrim fabric, in which warp and weft are interwoven are "but just cross" and in general at right angles but not necessarily, can; also used will. Such a Sorimtextilstoff can be two-fold catfish can be made by an air laying technique and it can have an openness of the fabric in the size of

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1b60673

Have 6x6. A warp tape made of essentially parallel Threads that are at a distance from each other in the transverse direction, can also be used

Me selection of fibers that are used to manufacture the open reinforcement fabric are not critical, and any of the large group of fibers ν can be used which is currently known $, provided that the selected fiber through the tackifying treatment is not adversely affected.

The lancing operation is performed in a conventional needle chair which is generally used in textile operations is known.

The pricking in the needle chair may be a prick from one or the other from both sides of the Söhichtstruktur include which from

the fiber construction, the reinforcement and the thermoplastic fibers.;

Foil consists. Pierce from both sides of the layer structure * ■ ' can be executed in a bin needle holder, whereby

the structure between two successive passages' -. "·

is reversed by the chair. It can also be in a single ^ operation to be performed in a double needle chair "

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The stitch density, that is the extent of the steohens, can vary considerably, and the resulting looping of the fibers for tensile strength and dimensional stability as well as contributing to the degree of compression of the product, changes in this regard are reflected in the Properties of the product.

Furthermore, the Faserbttsoheldichte depends in such fabrics, in which one or both outer surfaces of l ⁹ aserbUscheln consist, of the stitch density decreases and as a result, this variable may also have an influence on the appearance of the nichtgevebten Textilstoffproduktβ and also on the properties that are attributable to the presence of tufts of fibers. In the practice of the invention, stitch densities are in the range of 15 stitches / cm to several

2
1000 stitches / cm has been found to be generally rectangular, while around 500 stitches / cm is most common. The length of the bath stitches depends on the thickness of the stabbing layer structure and also on the type of fabric desired.

The sticking of the thermoplastic film in the cut product is made possible by a suitable process.

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called »for example by heat» by a solvent or a swelling agent or by a combination of Warn and use a suitable solvent or swelling agent. In the following, the term "swelling agent" is intended to include a solvent for the thermoplastic film. The chosen one Treatment must be of such a nature that it affects: the fibers in the faeer structure is not harmful, and that it in particular does not destroy their fibrous character or create a glue mix the individual fibers caused because such gears because of their often detrimental effect the physical properties of the product are undesirable are.

Accordingly, when heat is used to tackle the thermoplastic film, the temperature at which tackiness occurs should not exceed a value which is generally at least 10 to 20 ⁰ ₉ below the melting temperature of the fibers in the fiber structure or the! Temperature at which their fibrous character is impaired. In practice, the temperature at which the thermoplastic film becomes sticky depends not only on the material from which it is made, but also on its thickness, which is usually in the range

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between about 100 and about 220 ⁰ C.

Polyethylene film become tacky at a temperature of about 150 ⁰ C, so that such films can be used sweokmässlg when the fiber structure of nylon, such as Polyhexamethylenadipamidfaeern, or polyethylene terephthalate fibers contains, which fuse together at temperatures of about 260 ⁰ C. Polypropylene films become tacky at a temperature of about 190 ^° C., so that they can be used if the fiber structure contains nylon, "terylene" or polyarylnitrile fibers such as, for example, "Orion".

Should the structure of the sea contain fibers which cause crimping, to a stretching or a shrinking or a are capable of other deformation, so can the respective Deformation; such as curling, due to the heat treatment be effected.

If the thermoplastic film is made tacky by applying a swelling agent to the pricked product, so apart from the development of a deformation such as curling, which may be latent, the fibers must and the gain by the particular agent In used

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remain essentially unaffected. You pick a «swelling agent depends on the nature of the thermoplastic film, the fibers used to make the reinforcement, the im The fibers present in the stoked product and also from the Conditions under which the treatment will be carried out. Further information on suitable swelling agents for a given engraved product are in the following Table specified:

fiber
(engraved
Product) Fiber of the ver
Strengthening Thermoplastic
cal foil Source
middle polyester
Polypropylene
or mixtures
from it polyester Polyhexa-
methylene
adipamid or
Mixed polymers
from it salt
acid
Ants
acid HyIon, vie aB *
Polyhexamethylene
lenadipanid or
Polypropylene Polyhexamethylene
ftii-f naxtid Polyvinyl
chloride acetone
Ethylene
dichloride Nylon, such as
lenadlpamid Polyethylene
(low
Density) Tetra
chlorocoh
fuel Hylon, such as;
lenadipamide Construction role Polypropylene Tetra
chlorinated
lenetoff Polypropylene cotton Polyhexaethy- phenol
Benzyl
alcohol Polypropylene or MiBOh-
polymer de »«
the same 009850 / 165A BAD DRfQ-IN / I.
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The swelling agent can be applied to the pricked product in a number of different ways, for example the product can be fed through a container containing the swelling agent, or the swelling agent can be sprayed on in turn, or it can be poured onto it in a stream or in drops . The swelling agent nut not necessarily be a liquid, and fall into those in which ice solid is employed, it is necessary, it ansuvenden in a suitable flowable Fozb as sB _o ale solution or dispersion in a liquid Trägereittel. The treatment with a swelling agent can be combined with a kit of a simultaneous or subsequent heat treatment.

The conditions used for tackification must vary somewhat with the different types of thermoplastic material and also the thickness of the solid, whether a destruction of the Volieno character is now desired or not. However, it turned out that the destruction the thermoplastic film and the complete Distribution of the adhesive in films of a reasonable thickness can only be achieved if treatments are used which are so hard that they break the fibers into

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intimately affect, or by applying a Compaction pressure «on the pricked product at the same time or immediately following the cladding treatment. Hie Venrenduo ,; thinner pollen makes your leg destruction easier Kiebrign & ohen.

The nonwoven fabrics of this invention, in the thermoplastic film without destroying your film hardener tackified are suitable for a number of uses, but they are of particular value all. Deokenstoffa.

7'ie nlohtgewebten textile materials according to this invention "in which the tackiness of the thermoplastic film is accompanied by a resolution, are slightly thicker and stiffer and find them in very different applications using _t for example as press plates for bags and heat-moldable liners (sky) in automobiles ·

The invention will now be made with reference to the accompanying drawings explained in more detail · These drawings explain preferred embodiments the invention·

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Ee beige:

Fig. 1 is a schematic view of a system aur producing a non-woven fabric β according to the Invention explained;

Fig. 2 is a corresponding view showing a modified A system for making a nonwoven fabric according to the invention explained;

Fig. 3 shows a corresponding Ausloht, which another modified system for the production of a non-woven fabric s explained according to the invention}

Figure 4 is a perspective view of a skin trel-sohlohtigen sole structure »as it is extremely produced will}

Fig. 5 is an aohematic cross-section of the sole structure the previous figure;

Flg »6 shows a genuine cross-section through the sole structure of fig, 4 and fig. 5» after it was pricked in a needle chair

Figure 7 is a perspective view of a portion of a nonwoven Textile fabric, which is made from the engraved product from Flg. 6 was obtained by Kiebrignaohen the thermoplastic film contained therein;

Fig. 8 is a front perspective view of a nonwoven fabric Textile fabric β τοη Flg. 7t with a part broken off, so that the arrangement and the relation of the individual layers can be seen;

Fig. 9 shows a real cross-section through a nonwoven Textile fabric, which is made from the product τοη Fig. 6 by Xlebrigaachen the thermoplastic contained therein Film obtained under different conditions;

Fig. 10 is a straight side view showing a system for making another nonwoven fabric according to the invention;

11 is a perspective illustration of a five-layer length Biological structure as it is obtained;

Fig. 12 is a schematic cross section through the Sehioht- Structure of the going figure?

Pig. 13 a corresponding view of the non-woven textile et of fs, the duroh piercing of the sole structure of Fig. 11 and

12 was received in a chair}

Fig. 14 is a perspective view of a nonwoven portion of a nonwoven fabric Textilstoff ©, which is made from the engraved product by Fig. 13 by elaborating the thermoplastic contained therein Foils was obtained;

15 is a schematic and front view of a nonwoven textile fabric of the foregoing FIgUTs _1, with a part broken away so that the arrangement and the relationship of the various layers can be seen in a more detailed manner;

Figure 16 is an eohematic cross-section of a nonwoven Textile fabric obtained from the stitched product of Fig. 13 by sticking the themoplaetieohen contained therein Foil was obtained under different conditions «

In the drawings, the same reference numbers refer to the same or similar parts. In Figure _e 1 an endless belt 20 carries

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a "thermoplastic _{sheet 21 9 is} unwound from a supply roll 22 and is moved horizontally through the belt from left to right, as can be seen in this figure consists of an open textile material, such as a loosely woven sorim textile material, which provides the reinforcement and which is continuously placed as a layer 24 on the thermoplastic film 21 and moved at the same speed in the same direction. The supply roll 23 contains a fiber structure , which consists of a large number of fiber webs produced in a conventional carding machine sole and which is continuously laid as a layer 26 on the reinforcing material 24 and the thezinorlaatieche film 21. There is a loose physical connection between the layers of the layer structure 27 formed in this way the fiber structure from a single one Fibrous web can be obtained, and (. That the web or webs can be made not only by carding fibers, but by any suitable method for forming a web of loosely connected fibers, such as by garnetting processes, by air deposition or by wet papermaking processes.

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The layer structure 27 is shown in more detail in FIGS. 4 and 5 shown, and it consists of a three-layer structure, wherein a fiber structure is formed by the fiber web 26, the upper the reinforcing fabric 24 and the thermoplastic Slide 21 is placed.

The layer structure 27 is then passed through a single needle loom of conventional design, denoted by the reference number 2S general is indicated "

The needle chair consists of a horizontal surface 29 and a needle board 30 which is arranged so that it can move in the vertical plane. It is old the usual Beard needles 29, which are inserted into the layer structure 27 in * and out again,.

In the course of their movement they penetrate the layer structure Needles first through the fibrous web 26, some pasers of the same being grasped by the whiskers on the needles, whereupon the needle passes through the gaps in the reinforcement of open fabric 24 go through and then the thermoplastic Slide 2! perforate, forming perforations. The fibers held by the needles of the needles become carried through the open textile fabric and the perforations in the thermoplastic film, the needles

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both form the perforations in the polie and the Fibers from the paserbahn through the open fabric and the perforations tragon.

During the passage of the layer structure through the needle loom and the associated lancing operation, the open textile fabric and the thermoplastic film are effective to stabilize the fiber layer at and as a result of this, the sting will old a minimal tearing of fibers in the fiber web manages, despite the poorly developed strength and dimensional stability of the fiber web, which can be attributed to the fact that the lines contained therein are only loosely connected to each other · In the The practice is even to move the fibers in the fiber web in the case of high stitch densities, mainly to such areas limited, which are directly influenced by the sting, i.e. to such areas, straight through the needles penetrate. The stabilization of the fiber web in this way makes a significant contribution to the finishing of the nonwoven Textile product with a uniformity and a regularity that of non-woven fabrics Overlays are made by pricking the fiber layer are received in the absence of an open text! and in this respect they are not extraordinarily such » Woven fabrics superior to those made by stitching the

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Fiber web in the absence of both an open text fabric as well as a thermoplastic film

The pricked product, which is indicated by the reference numeral 32, is explained in more detail in FIG. 6 and comprises a fiber structure which has been oriented from a fiber layer 26, in which single fibers 33, by the piercing operation, into a position perpendicular to the outer surface of the layer, d _a, is constructed in the direction of the cross section of the product, and from FaserbascheIn 34, the gain of open fabric 24 and the theraonlastischen film 21 h "the vertically arranged fibers 33 extend through gaps 35 in the open fabric and then through perforations 36 in the thermoplastic film. The fiber tufts 34 represent the continuations of vertically arranged fibers but the film beyond. The fiber layer 26 is held in position against the open fabric and the thermoplastic film by the fibers 33, which are reoriented by the pricking action of the needle loom, and the fiber tufts 34 are held relatively firmly in their position, since the vertically arranged fibers, which are compared to the roots of a tree in terms of both their structure and their function, are held and fixed by the open textile material and the film, which to a certain extent have a Klena effect on

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They exercise, Bs was found to be the presence of a carrier immediately under the tufts of fibers in addition to the Tnft quality improved «The density of tufts and thus the appearance of the product is to some extent different Stitch density dependent. With suitable stitch densities, the Feserbüschol remove the underlying thermoplastic layer the looks

The pricked product is an integrated object with sufficient cohesion to be easily handled and can be transported, it can be directly useful as a nonwoven fabric, for example as Papieraacher felt and as a sound absorbing agent or as an insulating material can be used"

Preferably, the thermoplastic material 21 is engraved However, product 32 made sticky by appropriate treatment. For this purpose the compound is pricked Product 32 carried by an endless belt 37 (see Fig. 1) through an air oven 38 in which the thermoplastic Film 21 is made tacky by exposing the product 32 to a temperature which must not be so high, that they are the fibers of the fiber structure or of the open textile fabric affect in a detrimental way, i.e. it must are significantly below the temperature at which a

- 33

BAD ORfG / NAt

Adhesion between the fibers or a loss of the fibrous Character would occur

Rollers 39 grip the resulting nonwoven fabric 40, which has a striped shape, and drove it to a tree 41, on which the textile fabric as a roll 42 is rolled up, while at the same time the surface of the same smooth and press lightly.

As already mentioned, FIGS. 7 to 8 show the non-woven fabric 40 obtained by the tackification of the thermoplastic film 21 in the pricked product. Bs can be seen that under the conditions that are described with reference to Fig. 1, the fabric is a layer structure composed of a fiber structure, a open textile reinforcement and a glued thermoplastic film with 4 separate and recognizable layers consists, namely the fiber web 26, the reinforcement of open Textile material 24, the glued thermoplastic film 21, which, despite the stickiness caused by the heat treatment, retain their essence as a separate tape and has experienced only slight expansion and internal migration, and a layer of fiber flakes 34. The fiber layer In addition to the vertically arranged strands 33, 26 contains fibers 34 which are in the plane or less in the plane

the layer are arranged.

The open textile material is anchored to the glued thermoplastic film 21 underneath, namely through the vertically arranged fibers 33 and also by direct gluing to the adjacent surface of the film. the Presence of the open fabric 24 within the nonwoven Textile fabric gives them some of the desirable properties of a woven or knitted fabric, and in particular a well developed tensile strength, dimensionclle Stability, tear resistance and washability.

The bonded thermoplastic film 21 which extends through the fabric also improves on the above Properties, but does not noticeably reduce drapability and flexibility of the fabric, possibly due to its discontinuous nature due to the presence of a plurality of perforations 35.

Fibers in the fiber layer 26, which through the openings 35 in the open textile material can go through with the adjacent surface of the glued thermoplastic film 21 come into contact, in which position they are

fertilize associated with it. Adhesive bonds between themselves

Fibers that are / are in contact with the bonded film 21,

SAD

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and between the fibers and the film are not only used for fixation the fiber structure on the film, but also for fixation such fibers 33, which through the open fabric and the film was carried through the needles, and which as a prinSre connections and anchors of the fiber web 26 for the purpose of attachment to open textile fabric and the

Serve slide. The cumulative effect of adhesive bonding

about it too

serve to improve the inner strength of the bond, namely in those areas of the fiber structure where this is most effective is the role in which the adhesive bond significantly denies Boltrag increases this parameter through the fibers which is forfeited as a result of the stinging and are entwined. The good internal bond strength is demonstrated in the nonwoven fabrics of Figures 7 through 8 without diffusion of adhesive reached through the whole fiber structure, and as a result, those with such diffusion associated disadvantages (e.g. rough handle and reduced porosity) are avoided. The good internal strength of the The fiber structure is largely due to the presence of the bonded thermoplastic film 21, which increases the resistance improved against dissolution and splitting and provides the fabric with good fiber retention. The contribution made with respect to the fiber tufts 34 through the binding strength for maintaining the fiber tufts is reinforced the effect of the film and the open textile fabric,

BAD 009850/165 ^

which by means of holding the tufts in their position the clamping forces contribute to the vertically arranged Fiber "roots" -33 exercise,

Because of the excellent fiber retention, which has good wear resistance of fabrics, it is possible to use both surfaces of the nonwoven fabric 40 to the action of a conventional cleaning machine, thereby providing the surface with dense lush pile-like surfaces on both sides of the same. A conventional single or double acting card wire roughing machine is entirely suitable for these purposes. The roughened fabric provides a blanket old an attractive one Stir and useful properties.

As already mentioned, the thermoplastic film 21 can be made tacky not only by heat but also by the action of a corresponding swelling agent, with which adhesive a heat treatment can be applied simultaneously or subsequently. Pig, 2 is a view similar to FIG. 1, but shows a modified system for carrying out the method according to the invention, in which the thermoplastic film is made tacky by a swelling agent. The engraved product 32 passes after passage through the needle loom 28 by feed rolls 44

^ --_ ^ - 37 OO935Q / 165A- ■ ⁸ ^

and then gets onto a continuously moving endless conveyor belt near one or more spray nozzles 46 passed, which a swelling agent on the razor Inject the product to make the thermoplastic film 21 sticky to make · Excess swelling agent can be poured into a »bath 47, which is arranged below the nozzle, collected and re-use. The product is running then onto another endless conveyor belt 48 which it in carries the vicinity of one or more nozzles 49, which for example Splash water on it, removing the swelling agent, and then through a low temperature oven at 50 ° C, which it dries. The obtained nonwoven fabric 40 is wound onto a tree 41 as a roll 42 »

. 3 is a figure similar to the two FIGS. 1 and 1 , but shows a further modified system for carrying out the method according to the invention. In Fig. 3, the pricked product 32 leaves the needle loom 28, from where it is guided by feed rollers 44 and between rollers 51 through a bath 52 which contains a suitable swelling agent for making the thermoplastic film 21 tacky in the pricked product. After the film has become tacky by immersing the entire product in the bath for a time sufficient for this purpose, the fabric is moved out of the bath. After, the fabric with water or another

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appropriate fluid is washed from the spray nozzles 49 and dried in the low temperature oven SO, it is called Roll 42 wound onto tree 41. If, in addition to the swelling agent, Warne is used, the bath 52 becomes with no help a suitable lid S3 closed.

The treatment in which thermoplastic polio 21 in sticking the pricked product 32 may be more drastic, e.g. hot calendering or deforming at a temperature slightly above that to which the fibers would affect in it. Under these circumstances, especially if the polish is very thin, the stickiness is sticking often accompanied by a dissolution of the polie and its diffusion through the entire fiber structure. If the product is cooled, the thermoplastic adhesive solidifies, whereupon it serves as a binder and the fibers in the engraved arrangement.

A nonwoven fabric thus obtained is shown in Pig, 9 and it comprises a fibrous structure, which itself of a paserbahn 26, in which adjacent pasers are bonded to one another by adhesive, and of a layer of Paserbüscheln 34 and the reinforcement consists of open textile material 24, which is embedded in the fiber structure.

ö / \ d OfHQu ^ - 39 009850/1654

The difference in structure between the »textile, shown in Fig. 9 and the fabric shown in Figs previous figures, and in particular the distribution of the thermoplastic adhesive through the fabric of Fig. 9 is reflected in the Property® ?! the Text i! Stoffe and the end use purposes for which di® Texti! Fabrics can be applied, reflected. So that's in Pig. 9 is relatively dense and stiff and has a somewhat rough and unattractive handle and is for use in making fora plates for Suitcases, waterproof protective textiles such as tarpaulins, and various types of felts are suitable.

Fig. 10 shows a system which could be used in the manufacture of another nonwoven fabric in accordance with the invention. A continuously moving endless belt 20 carries a fiber layer 54 _t which is formed by crosswise laying of a row of fiber webs produced in a conventional carding machine and drawn off from a supply roll SS, a thermoplastic film 21 which is drawn off from a supply roll 57, is continuously laid over the layer S4 and moved at the same speed and in the same direction. Reference numeral 58 denotes a supply roll from Einra. Textile fabric, which in this case consists of a loose

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woven open fabric (e.g. a scrim) which provides the reinforcement and which is continuous placed as layer 59 on the thermoplastic film 56 and at the same speed and in the same Direction is moved. A second thermoplastic film 60 is drawn off from a supply roll 61 and is continuous Placed on top of the scrim textile and the structure is created by laying on a fiber layer 62, which comes from a supply roll 63 is peeled off, completed on the thermoplastic film 60

The layer structure thus obtained, which is generally indicated by the reference numeral 64 in FIG. 10, will be more detailed in FIq. 11 and Fig. 12 and has a five-layer structure, the reinforcement being made of open Textile 59 is placed between the two thermoplastic films 56 and 60 and the two fiber layers 54 and 62 form the outer layers of the structure.

The layer structure 64 is then passed through the single needle loom and pierced therein, with the fibers in the upper Fiber layer 62 grabbed by the needle whiskers and down through the thermoplastic film 60, the open fabric 59, the thermoplastic film 56 and the lower fiber layer 5 <C to be worn. The one coming out of the needle chair

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Structure is then made by rerouting around a series of roles 65 turned and then passed through a second needle loom 26, which is identical to the first needle loom. In this Needleholder meet the needles first the fiber web 54, which was on the opposite side of the layer structure 64 during the first lancing operation, and as a result will the fibers passed through the needles from the fiber layer 54 through all the other layers which are now below lie. In both lancing operations, the lancing depth is adjusted so that the fibers, which are oriented in the transverse direction by the needles, appear as tufts of fibers over the outer ones Surfaces of layers 54 and 62 protrude.

Instead of using two separate needle chairs for implementation the first and the first lancing operation can Layer structure 64 in a single pass through a Double needle loom can be pricked or in two passes through a single needle loom, reversing the structure between passages.

The pricked product, which in FIG. 10 with the reference numeral 66 is illustrated in more detail in Fig. 13 and consists of the same layers and the The same arrangement of layers as the layer structure 64, but the piercing gave him cohesion, Dio

BAD OfIGINAL 009 8 50/1654. -

Fiber layer 62 contains some pasers 67 which, as a result of the lancing operation, are in layers perpendicular to the outer surface of the latter Layer is oriented and means of the needle through the perforations 33 made by the needle in the two thermoplastic Sheets 58 and 60 were made through gaps 69 in the open fabric reinforcement 59 and through the opposite fiber layer 54 have been passed over the surface of the same as tufts of fibers protrude. In the same way, fibers 71 in the fibrous web 54 extend in the direction as a result of the lancing operation of the cross section of the product through the perforations 68 in the thermoplastic sheets 56 and 60 and through the spaces 69 and through the fiber layer 62, being over their Surface as tufts 72 protrude.

Dxj fiber layers 54 and 62 are attached to the other layers fixed, and the reoriented vertically arranged fibers give the pricked product dimensional stability and given a cohesion. The engraved product 66, which as such is a nonwoven fabric can already be used, can then be guided with an endless belt 37 through an Luftofon 38, in which the thermoplastic films 56 and 59 are made tacky. Rollers 39 grip the resulting nonwoven Fabric t (), which has a strip shape, and guide

0Ü9B50 / 1 654 ^Bad ORi _GlNAi "

, ■. 1b60673

him to a tree 41, on which the textile fabric as a roll 42 is wound up, while at the same time smoothing and gently pressing the surface of the same.

14 and 15 show, as already indicated, schematic representation of the nonwoven fabrics, which by sticky fabrics of the thermoplastic films obtained in the engraved product, Hs it can be seen that the fabric is a Has a layer structure with seven layers, which are shown in the following Are arranged in sequence!

(I) tuft layer 72,

(II) fiber layer 62, which Psssrn 67 and contains fibers 73 arranged in the plane of the layer are,

CXII) glued thermoplastic film 60, which is a separate layer within the textile fabric and which has holes 68 created by the needles,

(IV) open fabric 59, which is the stiffener and has gaps 69,

(V) second t'glued thermoplastic film 56, which a represents a separate layer within the textile fabric and has soft holes 68 created by the needle,

*. 44 " ■■ 00985-0 / 16.54 ^" ~ ^

(VI) fiber layer 54, which vertically arranged fibers 71 and lines 74, which in the plane of the layer an *, are ordered

(VII) Fiber fluff layer 70.

With appropriate stitch densities, the tuft layers withdraw In essence, the underlying fiber layers are visible and they provide the textile material with two pile-like surfaces "it has a" similar appearance "Soait the fabric can be turned and its usability is accordingly improved in certain applications.

The method described with reference to Pig · 10 can can be modified in the most diverse ways, being non-woven Textile fabrics have a different appearance and a different structure, which however all fall within the scope of the invention "

For example, in the case of reduced stitch depths, no tufted layers of textile fabric can or can be present the stitch depth may be greater in one direction, that's the stitch depth 1 "in the opposite direction, in the soft" case only A surface of the textile is formed from tufts of fiber .be · A pattern effect can also be created, inde « the needle prick over the flee carried out unevenly

SAD 009850/1654

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16 shows a different nonwoven fabric softened by heating the stitched product 64 under a substantial compaction pressure suns tackifying the thermoplastic sheet is obtained, as can be seen the thermoplastic films 56 and 60 as such have completely disappeared. The engraved product has its own stechen © Maintain configuration “and that of the foils native thermoplastic material is throughout Fiber structure diffuses »where it acts as a coating on the fibers remains, and serves as a binder to keep them in the shown Can be held.

The invention will now be explained in more detail with the aid of the following examples. In these examples, the . 3 and Fig. 10, the various systems described are used depending on their suitability, although no special reference is made to them for reasons of expediency.

A slope Polyhexaathyieiiadipttridetapelfe ^ ejni wen 6 and 63 mm long «was added

0098 50 / nU bad OL

and the webs thus produced were laid one on top of the other, successive webs being arranged at an angle of 90 ° with respect to the previous web, whereby a fiber structure was obtained which consisted of cross-laid webs and weighed ^{approximately 140 g / a 2} laid as a fiber layer on a cotton fabric, which weighed approximately 2t g / a ² and was woven with 20 warp threads of 25 aa and 13 sehud threads of 25 aa with weft and warp threads made of cotton of a thread count of Hr, 12 * s Series textile material itself was supported by a polyethylene film with a thickness of 0.075 aa, which weighed approximately 14 g / a ² . Gauge beard pins. The laminate was then passed through the needle loom old with the Foiyäthylenfolien as the lower layer, so that the needle hit the fiber layer first. The depth of the needle penetration was set so that the

Needles just passed 25 aa through the film, where-

themselves
at / some bit of each needle extended through the foil, so that the first bit extended about 1 1/2, beyond it. They speed of piercing was adjusted so dat ttttgoflhr 154 stitches / C ^"2 were carried out, that the stitch density was 154 stitches / about ² · The theraoplastische film and the reinforcement of dea Serlatexti! Material fixed

003850/1654

the fiber layer during the passage of the layer structure through the needle loom, and fibers were in through the needles Direction of the diameter of the structure reoriented, where only a local shift of the fiber layer took place. A Part of each reoriented fiber extended across the Surface of the film as part of a fiber bag, and all Tufts of fibers from Susanne gave the structure a new surface, which has the appearance of a conventional Ploroher surface possessed «.

The engraved product was then passed to a "endless conveyor belt through a Luftofea _p old which a throughput of 90 cta / ain and a TeBperafcOT IIS of about ⁰ C worked." ! The effect of this Wareebeli "si # S» g »» was lsi "issen Klebrignaehen the thernopiastlschen foil, w © ΙΦ® £ · * - *." £ Bss * s character as a separate layer not lost sending within the fiber structure as a separate layer which was located generally parallel to and between the surfaces thereof. Tackiness was only noted by slight expansion and internal movement ("creep ¹ *). Upon cooling the pre-glued thermoplastic film, it was found that the nonwoven fabric was effectively bonded by des.Polyäthylen in the stitched configuration. The tufts of fibers which formed a surface of the textile and which those underneath

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009850/1654

The perforated film hidden from view was firmly anchored in its position. This was illustrated by the considerable force that was required to remove, for example by pulling, the fiber bags from the textile material. The fabric had a soft, warm feel and usable paperability. The fabric was dyed with the acidic dye "Solway Blue" ¹ BN, and both surfaces were then roughened into a thick, lush plur using a single-acting Toalinson card wire rougher Textile fabric made an excellent ceiling material.

Example 2

A layer structure was produced which consisted of the following layers placed one on top of the other.

1 · upper class t

Fibrous web "it a" weight of annlhernd 140 g / ^"z ₉ prepared by carding and kreuiweises Place an amount 51 in long staple fibers of 6 denier, which were prepared eroftden from P *, the narrow from the same 6EW $ OHT £" Polyhexa- " eth / lenadipaaid and an "uncontrolled 80/20 Hfisehpolyaer from Hexasethylenadipaaid-Polytpsiloncaprolacta" (nylon 66 // $ 6/6) passed, whereby the two components in a "

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BATH

Were arranged side-by-side in the thread "

2, second layer g

0.075 α »thick polyethylene film (softening point 115 to UO ⁰ ),

3 » Third shift *

Cotton scrim textile, softer approximately 21 g / p2 and with 20 warp threads each 25 mm and 13 weft threads each 25 as "with warp" and weft yarn made of construction material of fine quality, | 2 ^c i was woven,

4 ,. Fourth layer ;

0.075 mn thick polyethylene film

S, lower class ? Paserbahn identical to the upper class ·

This layer structure was guaranteed and then engraved as in example f, with the difference that the stitch density was 30t stitches / c " ² " The engraved product was placed in an air oven at a temperature of ISO ⁰ C for a period of time by S minutes, u »the two thermoplastic

008850/1854 bad original

To make polia sticky without losing their foil shape. While the hardening treatment curled the hetero threads, so that the textile fabric has an excellent openness and porosity

The nonwoven fabric was dyed and had a final weight of 420 g / a ² .

Example 3

A layer structure was produced, which consisted of the following layers placed one on top of the other,

1, upper class !

Paving web has a weight of approximately 140 g / a ² , produced by carding and crisscrossing an amount of 51 aa long staple fibers of 20 denier, which were made from hetero * threads made from equal weight lengths of polyhexaethylene adipaaid and an uncontrolled 80/2O mixed polymer of Hexaethylene adipaaid-Polyepsiloncaprolactaa (nylon 06 // 66/6) passed, whereby the two co-components were arranged in a side-by-side relationship in the pads,

2, Twelfth shift ?

Nylon scribed fabric, woven with 9 warp threads of 25 aa and

0091607 tll * ■ ■ »'■' bad

AL

- S1 -

9 weft threads each 25 am and using two 420 denier / 68 Pftden weft yarns and one * 840 Denier / 136 Pfiden warp yarn «

S. Third layer i O ₉ OS «■ thick pile made of polypropylene (softening point 170 ^° C.).

4, lower layer l

Paserbahn identical to that used in the upper class ·

This layered structure was pricked 6 times using a conventional needle stick, which normally had 32-gauge beard needles. "Make every" passage 4 through the needle stick, the structure was used, the product was then placed in an «air oven tirihr®nd 3" § Nimtm a Teaperatur of 200 ⁰ C heated "the Bffekt this IfIrBebehandlung was in a" tacky of polypropylene files and in a "puckering of Heteroftden. The nonwoven product was then dyed, it had a weight of 705 g / a ² and was a useful blanket textile.

Example 4

A laminate was made from the following Shifts "

- S2 -

008850/1654 bathroom

Upper class a

Paserbahn, air-laid old using a Proctor and Black-Durfone air-laying machine made of 12 denier 63 aa long poly-ethylene torephthalic staple fibers, which weighed ^{210 g / a 2.}

Second shift t

0.15 aa thick polyvinyl chloride film.

Third layer :

Nylon scribed fabric, woven old 9 warp threads 25 aa and 25 each 9 shots each 25 aa and using two 420 Denier / 68 Plden-JCett yarns and a 840 Denier / 136 Plden-weft yarn

Fourth layer ;

0.15 aa thick polyvinyl chloride film.

Lower layer 8

Fiber web old elnea weight of 140 g / a ² , <*, - "he was made from poly · hexeaethylene adipaaid staple fibers of 6 denier and 63 aa length using a Proctor and Schwars-Duofora air-removal apparatus«

-SS-

009850 / .1656 ^

The layer structure was rolled and then passed through a needle loom, in which it was never engraved in the same manner in Example 1. The structure was turned over between the passages through the Hadelstuhl and the stitch density was 304 stitches / ew ² .

The stabbed product was for a period of Immersed in an acetone bath for minutes and the polyvinyl chloride foils to make sticky. The sticky agaii was in this Wise without destroying the foil shape,

Example 5

A number of woven fabrics have been evaluated as ceiling materials from the layer structures specified below prepared using the method which is described in example f »

fabric A
Oberschicjhti

Fiber web weighing 120 g / «2, manufactured by Air deposition using a Proctor and Schwari-Duofora air deposition machine from a 60/40 wt! mixture of 12 denier staple fibers, 63 mm long, made from

0Ö985O / 1654 bad original

HeterofSden consisting of polyhexamethylene adipaaid as a component and a »redirected 80s20 mixed polymer from Poly · hexaaethylonadipanide and polyepsiloncaprolactan than others Component (nylon 66 // 06/6) were formed, with the two components in the pad taking a 5-side-to-side ratio, and 63 am long polyhexaethylene adipaaid staple fibers of 6 denier.

Second layer 8

Polyethylene layer 0.075 thick and weighing approximately 17 g / n ² .

Third layer ;

Polyhexaethylene adipaidscrimtextilstoff, woven from cotton with a thread count of 20 ^s with 20 warp threads each 25 am and 20 weft threads each 25 aa from a yarn consisting of 63 na
long staple fibers of 6 denier was spun «

Lower layer 8 Paserbahn identical to that used as the upper class

BAD OFHQiNAL
009850/1654

fabric B

The layer structure was identical to that of the textile fabric A was obtained, with the difference that it contained five layers, the polyhexaethylene adipaaidecriB fabric between two polyethylene films of 0.075 aa Thick was laid.

Textile fabric C

The layer structure was ait those same was obtained from which fabric A, old the difference that the third layer as reinforcing a Poi / hexaatthfienedlpaaidscrintextiistoff contained, was softer woven in © LSI® "ßreheratifbau, namely" it 4 warp 25 per aa md 4 sehisftn each 25, whereby two 420 denier / 68 ply warp yarns and one 840 denier / 136 FSden pile yarn were used,

Each of the layered structures was passed through the needle loom twice, turning the structures between passages so that they were pricked in both directions. The stitch density was set to about 50 stitches / cm ² , and the needle penetration depth was adjusted so that the needles 13 aa penetrated beyond the backing layer and the flowers closest to the tip of the needles aa

- 56 -

009850/1654. 'BADOFMQlNAf

full coaaen penetrated "

Di "engraved products were then oven-sent" the it at a temperature of about 180 ⁰ C and "a Durchsatκ 90 ca / ain * worked by a Pftrderluft. The effect of the heat treatment embeds in "ine" tackiness without using the pollutants of the thermoplastic film. Films that were “present in the engraved products, and also in“ ine ”ttrlua in the ifeterofIdea, which gives the textiles a looseness and a yarbeiserte Pero- • itlt gives me the textiUtoffe uurde * in“ la · red color dyed with a disperse dye, and both surfaces were roughened by a double-acting machine.

Bigentchaftea £ «r Teictiletoffe were geaesseo dana, you tmd slad" usaaaien "it eng ratsprecheadea Blgenschaften a ollstlndig% of wave woven blanket la the following fabein listed"

009850/1664

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Claims (1)

PATENT CLAIM 1, J Non-woven textile material, consisting of a fiber structure, at least one layer of a separate thermoplastic film and at least one layer of a « Reinforcement material is made, and the layers are made of thermoplastic polie and reinforcement material «or less parallel to and between the surfaces of the fiber structure are arranged and some of the pasers in the paserstructure arranged in planes parallel to the surfaces thereof and other fibers are arranged in the fiber structure in the direction of the diameter thereof and the Layers of thermoplastic film and reinforcement material traverse, 2, non-woven textile fabric according to claim I _9, characterized in that the thermoplastic "film is glued" 3 _C Non-woven fabric according to claim 2, characterized in that the bonding of the thermoplastic film is accompanied by the dissolution of the thermoplastic film the whole fiber Paserstruktur. 4. Amsprach 2 nonwoven fabric, thereby marked “that the glued” thermoplastic film is embedded within the fiber structure as a separate layer is. 009850/1654 5, Method of manufacturing a non-woven textile fabric s according to one of the preceding claims, characterized in that it indicates that it produces a visual structure which a structure of relatively loosely bound fibers containing at least one layer of a «stiffening · * ·» the textile fabric and at least one layer of inner soft- dle derten theraoplastischen foil, and daft to me, "so that fibers of the fiber structure hindurchgegtftiagen by dl · gain and theraoplastisch · film structure stands _s" / layer 6, method according to claim S ₉ characterized in that «the pricked product» iacK- ii # lmml & ?, gm®Zmm> $ f $ n vat the thermoplastic film BATH 009850/1654