DE1729033A1 - Process for the production of flexible, air-permeable, web-shaped products - Google Patents

Description

PATENT attorney dipl ing. dr. iur. V. BUSSE Osnabrück, Moserstr. 20.24

Osnabrück, January 18th, 19o7 V / IIlM

August Ferdinand Schrarm jun.

2 ^ ί1 ο.L. 12th Street ₃ Pompano /.'each,

Florida 33060, Florida, USA

Process for producing flexible, air-permeable, sheet products.

The invention relates to methods for producing flexible, air-permeable, web-shaped products and especially the application of I'unststoff-Binder.vittoln on flexible, air-permeable dahn materials. The LrfinJung can, for example, be used for .! create layered products for Ilei.lkrclgen, IJahbilnder, Lue l goods, shoulder pads and car seat covers.

US Pat. No. 2,603,575 describes the application of a resin to a fabric or a fabric in a V / eise which ensures the air permeability of the fabric. The method according to the USA patent consists of moistening a surface of a porous web, applying fine particles of thermoplastic to the wetted areas, then removing the plastic with the exception of the particles or very small hesters that come into direct contact with the applied moisture or the wetted surface and held by them

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as well as the fusing uhd subsequent cooling of the plastic particles held on the fabric. The plastic layer thus formed and bonded to the fabric has a thickness that essentially corresponds to the size of a particle (mono-particulate) and the particles held do not have a matching shape on their contact surfaces. Accordingly, there are gaps between parts of adjoining particles even if they Jk touch at other points and adhere to one another at the points of contact to present a continuous plastic film with fine, irregular gaps therein. These spaces form ventilation cannula through which air can circulate in a manner which is undesirable for wearing clothing.

In contrast, the invention creates a product and a method to produce the same, which has greater flexibility and air permeability of the original web to which the plastic is applied ensures and a more advantageous one Handfeel, i.e. a softer feel, of the layered end product. .

The method for producing a flexible, web-shaped luftdurchläs- ^l sigen product according to the invention, 1st characterized in that in successive passes onto a surface of an air-permeable, flexible sheet for moistening at least a portion of the first surface

ooemmoa

a liquid is applied and then on the Harsh particles of thermoplastic material are brought in, with the tooth and the thermoplastic material are not soluble in the liquid and the liquid is such that it acts as a temporary adhesive Holding the particles on the moistened surface means that they are not touched , with the liquid trapped particles from the fly are removed and then added to soften and heat for a permanent bond of the particles with the surface the liquid or the particles, or both, only at predetermined, spaced-apart locations such a size and with such a gap are applied to the surface that the captured particles no continuous fiir. pictures, unr. to the extensive Retention of flexibility and Luftdui'chir.ssi., I: eit of the web in the end product in their entirety cover less than half of the web surface.

Preferably, pressure is applied in addition to heat.

Advantageous is '..' arms in front of the applying and printing a second, air-permeable and insoluble in the liquid Eakn or location on the surface and the applied at this arrested particles, wherein the pressure by pressing the two webs nit the verblietenen therebetween l - ^ zilioln is exercised. Polygamy connect the two tracks together.

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-1 -

The layered strips are connected by * they stick to one another only in the predetermined, adhesively treated areas. A large part, e.g. the half or more, the area of the piled tissue, retains its original permeability, flexibility and softness. Water can be used as the liquid.

The liquid can be applied to the surface at predetermined, spaced-apart locations and from an aqueous solution of a thickening agent for water exist, which limits the spreading of the water from its application areas and a sharply outlined one Maintains the outline of the wetted areas for the retention of the particles.

As a thickening agent, a C1, -alkyl ether of cellulose can be used be used.

The alkyl ether can thereby be replaced by a hydroxy-CL, -alkyl group be replaced. Hydroxypropylmethyl cellulose can also be used as a thickening agent. In further treatise An aqueous solution of methyl cellulose can also be used as the liquid. For 100 parts by weight of the solution about 1 to 5 parts by weight of the thickener can be used.

ORIGINAL

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If, for example, water is used, it can be used beforehand mixed with an anti-spreading agent so that the penetration of water into the tissue is inhibited and restricting its spreading out of the initially wetted areas. After that the plastic particles applied to an intermittently moistened fabric web and later the excess plastic, e.g., tapping the back of the face down or substantially vertical web, ™

removed. According to another embodiment, the entire surface area of the web is wetted by a light spraying with water or in some other way and the plastic powder is applied by a tool, e.g. a net-like or differently designed web or plate-shaped part that has recesses in it Pattern is provided which is desired for the ultimate ornamentation or other arrangement of the binder applied through the recesses. Λ

there-
In any case, the binder is fixed in the desired location on the web by heating it to the temperature at which water as the temporary adhesive evaporates and the plastic softens to flow, which bonds to the carrier web on subsequent cooling . For the purpose of forming a 3ahn from several superimposed dishes wea old; second web on the one on the surface:; :: -; uer ex'jten web bofincUiciie binder üu · '■ ··;.-i-.t uu-'.

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pressed by ironing od. The like. Moderate pressure on this. After the whole thing has cooled down, the plastic binder is penetrating into both layers of the web and holding them together permanently and firmly, however only at the points where the individual plastic mass particles are located at a distance from one another.

The invention also includes a flexible, air-permeable

web-shaped

casual / produce marked Jst by an association with particles of thermoplastic material attached to predetermined spaced apart and in their entirety less than half of the web surface occupying places on it as separate Ilasseteilchen be liable.

For a more detailed explanation of the invention, reference is made below to the schematic drawing in which an exemplary embodiment of the subject matter of the invention is shown, it show:

Pig. 1, cross-sectional views illustrating three

2 and 3

Work stages in making a layered one

Fig. * F is a plan view of a pattern, with a decorative layout and distribution of the thermoplastic

i-indenmittels,

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Figure 5 is a similar view of another arrangement as a substitute for lock stitches or basting stitches,

6 shows a machine in side view for use when plastic is applied to a surface of a fabric for connecting the same with another layer, for the purpose of producing a

teten web nit spaced, the front. j and backside plastic particles connecting at predetermined intervals.

The drawings are partly carried out schematically. Ir. Individual operating and operating parts, not shown or arrangements as well as the materials not given correspond to conventional ones for similar parts in other products or machines of this type.

The carrier fabric tzv :. -material I has a moistened surface 3 with fine particles 5 of polyethylene or other thermoplastic binder, which adhere to the surface wetted with moisture. These particles are shown exaggerated in their three-dimensional shape in FIGS. 1 to 3. They appear as separate small particles, although they are to be regarded as extremely flat hesters formed by several coherent particles, at least one of the particles adhering directly to the wetted surface 3.

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ι ■

• ·

After joining, ie softening under heat and then cooling to room temperature, the thermoplastic material assumes a somewhat rounded spherical shape 7, which has also been exaggerated for clarity of the drawing, and the spheres remain on the spaced parts where the particles initially adhered. The second, connected to the carrier web 1 web 9 is then pressed either before or after the initial cooperation of the binder include tk 5 applied and in any case when the binder is in a softened state. The beads 11 in FIG. 1 can be larger and are suitably larger than the beads shown in FIGS. 1 to 3 if they are to remain exposed at all times as an ornament. Depending on your requirements, they can be colored by pigments or dyes added to the original thermoplastic binder.

The arrangement of the binder 13 in FIG. 5 illustrates a suitable Ψ for the thermoplastic materials at stapling ironed peratures or quilted products pattern.

The machine according to FIG. 6 has a supply chamber 15 for the thermoplastic binary powder 17 and a Kutförderer 19 with a drive (not shown) for conveying the powder via a funnel 21 onto the top of an endless applicator on the other 23.

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The carrier web 25 is fed between an application or pressure roller 27 and the pressure roller 31 interacting therewith.

guided. The application roller has spaced apart,
raised areas (not shown), which the adhesion or adhesive liquid 29 coming from a container 30,
For example, an aqueous 2 / S solution of Kethylcellulose, on a
Surface of the web 25 presses.

The imprint formed in this way is then

roll 33 and 35 against and on that on the endless ^

Belt 23 advancing thermoplastic powder pressed. Conventional devices not shown exhibit the substance
holding tensioner ₃ cold or the like. And other Ilittel, which the Geshwindigkoiten of the tissue 25 and the upper
Synchronize truns of the belt 23 so that the Ilaftflüosigkeitslösung that is pressed on does not change from its original, in
Abctand located positions on the fabric laterally blurred -.jorden.

The web with the powder adhering to the liquid application points 41 is then passed under the tapping device 37, the surface of the web provided with powder sloping downward old other
Particles are held on the track, falls off when knocked uiv.I jGreets back into the container 15 by adding powder. The web with particles retained on it, including nests, is then over with the back

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of the web in contact Führunn ^srollen-1 IO and 42 out to and through a! / r '13 iirme pot in which the V.'crr.e generated appropriately VJeise the V / ater "from the previously supplied liquid 29 dries out and c. also fuses the plastic particles to form small small r ze 27 correspond to the water and methyl cellulose solution applied.

The heated web is then fed through the take-up roll 47 in the cooling chamber 45 is drawn in.

The product produced in this way can be used as such, e.g. 3. for upholstery or .. seat covers, or with

A-

a second web of the same type or of a different type from the carrier web. To produce such a layering, the second web is placed on the exposed binder and pressed against it while the binder is in a heat-softened state; then the whole thing is cooled down. The additional equipment required for layering is common in this type. Sin such a layered product is in _; Fig. 3 shown.

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Other methods of arranging the binder particles at a distance, in which the particles or the aqueous adhesive solution or both are applied through a sieve are later in the examples.

■ According to a modification of the above method, the zueite Eahn placed on the spaced-apart plastic particles applied to the carrier web before they enter the heat chamber * J3 happened. Then the stacked ones ground Paths between pressure rollers (not shown) and finally guided into the cooling chamber 5.

The carrier web 1 or 25, to which the moisture is applied, should be mixed with water to an extent that the moisture applied to its surface is retained, wettable, but insoluble in water. Will air permeability Required for the end product, the Dahn must originally be air-permeable. During norr.alerv.-eise Woven or knitted fabrics of cotton, wool, silk or synthe- "

granulate resin fibers for use, paper, Glass or silver wool fibers in thin stripes, or gsschclunte Polyurethanes are used.

A means that counteracts spreading then comes into play Application when the applied ".'asser in precisely delimited should be kept rich. This should be a Zewegunj or Spreading ces water after his. Application on the carrier web, especially in the lateral direction, limiters, uni

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>
consists of a thickener for haters. This is done using methyl cellulose, for the "methocel". an example is dissolved in the water that is applied to the web before the plastic is applied. The anti-spreading agents that can be used include CL, alkyl ethers of cellulose, the netrium salt of carboxymethyl cellulose ("CMC"), lietrium alginate, and hydroxy C,, alkyl substitution products of these ethers. An example illustrating the latter class of agents is the cyclroxypropyl methyl cellulose ("Ilethacel lIG ^r ). This cellulose ether has the groups _{-OCH 2} -CIIOH-CH ₃ and -OCH * incorporated into anhydroglucose units of the cellulose. This compound can be obtained from the DOW- Chemical Co. It can be prepared by treating cellulose under normal conditions of thermosetting with sodium hydroxide and methanol to introduce the ethyl group and with isopropyl oxide to introduce a hydroxypropyl group the viscosity of at least 1,000 cP and expediently 10,000 to 100,000 cP for a. 2 / J-LöEuns at 20 ⁰ C and should remain effective at that temperature in the same thickness state or as a thickener for water, which it in the heating stage, ζ E.g. the chamber 43 is exposed to about 71.11 ° to 148.89 ° C. The üethocel HG fulfills these requirements in a particularly satisfactory manner he '. ^r else, and has a viscosity of 50,000 cps for 2 £ solution at 20 ⁰ C.

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or

There is no advantage to compensate for the higher costs / other disadvantages of replacing water as liquid iledium in the temporary adhesive with ethylene glycol or other compounds. The agent selected must be soluble in cold water and result in a thickened liquid, either a true solution or a colloidal dispersion, which is brought about when the proportion of the agent or agent is in the order of 1% to 5% of the water of solution _s and must not chemically react with any other materials used. The oil can, however, contribute significantly to the pouring off water through the plastic binding agent.

The web which is superimposed on the carrier web to form a layered web can be any of the mentioned 3 tracks or a track of the type described and either of the same or one of the special ones Ilmaterial of the carrier web consist of different material. For car seat covers, for example, the second panel or layer j | made of a thick layer of padding made of polyurethane, foam rubber,; Eaumv / olle or Pi-Iz exist. ;

That in the form of fine particles in predetermined places. The spacing between the applied plastic binder consists of a thermoplastic. It should be one at -RttumfcömpeSaiui? not be a sticky solid substance that is softenable at temperatures that

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the fabrics or other web materials used withstand. For this purpose, solid polyethylene, e.g. the polymer with a molecular weight of over 6,000 particularly suitable. Other means to use are Polypropylene, polyvinyl acetate, polyvinyl chloride, polymethyl methacrylate and the same. The selected plastic is used in the form of a powder, in which the individual Particles are no larger than the beads 44 that are to be applied at intervals on the finished fabric or other sheet material. The particles are initially spaced applied to a continuously wetted web, as is the case in certain of the following examples, so the particles should be of a size small enough to pass through the apertured To enable tools by which the plastic is attached the predetermined 3 parts applied to the wetted web will. For this purpose, the commercially available, powdery Plastic can be used, with particle sizes of 0.84 mm clear mesh (20-mesh) or finer too Recommend, however, the exact size may be in accordance can be changed with the effect desired for the end product for a given use.

If the water-containing adhesive liquid, it and / or the plastic powder Applied through a sieve or the like to the material to be treated, the sieve used should be placed on the

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Aqueous adhesives are non-absorbent in order to prevent the screens from becoming clogged by accumulated, vri'ssrires material. Examples of perforated parts which are satisfactory and which can be used are sieves made of silk, which in certain areas aur!. ', Rzielunc; were pretreated by V / asserunclurchli'T-sigkelt by 2.B. the sieve is wetted in the named areas with an aqueous solution first of aluminum sulphate and then of a soap, so that there is water on and in the fibers.

repulsive aluminum: niniu-. ⁱ .3eife separates, and inuer /. then ^ any remaining water-soluble Chc.ri!.?.] are washed out and the geuaocheno gable is dried.

Another treatment for these fever areas consists of one Applying a thin layer of paraffin wax or a Ciliciunhar ::. Furthermore, perforated 21eche. e.g.

from Auminiu:.:.? "c3sins or r.oneluetall, for application korinen.

In any case, the sieve openings may have been prevented from going. ice specific i: r _~} ebnis particular the size of the individual "asseteilchen in de:. Hr: eurnis _reliildeten: obtain || ^ Kunststoffkü moose that at 7 in 7i ^ · 2 and 3 and at ¹ U in * ? i ~. 6 are shown.

The temperature to which the ether:; oi: la3ti iche ßinder.ittel after the. Applying to the material will be the well-known '_e: porature, in which the -ev: iüilte plastic will flow slowly up to ai: tw ~. Condition if missing :: . or njen pressure er ;. ^T eicht. On no tall v; ird however up to

the temperature mentioned at which the C-ewe'ce in the. Zeitraur.,

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4 ₍ ■

by being exposed to temperature. In most cases, temperatures are about satisfactory between 71.11 ° C and 126.67 ° C, although brief periods temperatures of l48,89 ⁰ ° C to 176.67 C for the application

can can. ■

The operation of the machine according to FIG. 6 has already been carried out described. The following examples contain modifications to illustrate different methods of manufacturing of the products according to the invention. In these examples, ratios are expressed in parts by weight.

Example 1;

A bleached, woven cotton print fabric made of 30 warp and iJO weft yarn (30's warp * and 40 »s filling yarn) with 80 χ 80 threads .-? I / 6, ¹ J5 qcm and a weight of 0.453 kg / x 3.3 ¹ J ¹ J square was placed under a silk screen provided with a frame, which with the exception of predetermined, spaced-apart region uixden not coated ^ for passing the liquid of the adhesive, was fitted with a water-impermeable coating. The adhesive liquid consisted of a £ 2 solution of ilethocel HG in water, which was prepared by stirring the Ilethocel HG with water in a cold state. The liquid was pressed in the usual way with a squeezer through the free openings in the pattern of the silk sieve. Thus, the Eaunwoll-print fabric was lightly wetted in the desired I'usterbereichen, that is until he felt moist ^v 'Ä5k "A4" ^s iA ⁰ J ^ ¹ W ¹ Ji ^ dripping. Lanach was

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Silk screen lifted off and removed from the cotton carrier web. Then dry, easily flowing polyethylene powder in a size of 0.29 mm clear ileal width (50-mesh) as a thermoplastic binder was applied all at once in a continuous layer to the wetted side of the fabric and completely covering it. The base fabric was then turned over (with the surface after untei) and shaken gently, so that the thermoplastic powder particles or accumulations or Hester, except for the pre-Λ läufir- relaxants wetted areas of the pattern adhered particles fall off. It was carrier fabric including adhering liquid and leaving behind residual thermoplastic powder -.welches leading i £ adheres to the surface pattern and this covers about 10 see at an air temperature of about 176.67 ⁰ C for drying and for interlocking Befeuchtungssubstanz

and fusing the individual hester thermoplastic articles soule partially ™. Embedding the same as Kü _t '; elchen in Tr ^ or ^ Guébé via an electric-heating lenient - held.

The carrier material containing the under ', ^r c ".rme {jeschr.olzenc, thermoplastic material. * Could then ^{cool down in air for et ν / ε. 10 sec. Or l. V} ii'-; er and sit.

Example 2:

The same materials and procedures were used as in Example 1, except that the Methoce.l HG by an equal proportion of methyl cellulose was replaced.

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example ~ $:

The process described in Examples 1 or 2 was repeated with the exception that, while the thermoplastic spheres were still in a state softened by Vtrr.e, that is, another printing material was added before cooling The surface of the carrier web, which had been treated with plastic, was placed on top and pressed against it by means of a cold plate. The setting of the layer product took place only in c.

Example 4:

The process according to the example was repeated and supplemented by laying a second, however, cooled, untreated connecting sheet made of the same SO χ SO-filament Gev; ebe on the plastic-reinforced side of the carrier sheet. An electric ironing machine with a dinghy set :! Thermostat was heated. The heated iron was ψ see under moderate pressure. long pressed on the exposed surface of the second sheet. The thermoplastic plastic was sufficiently softened by the heat and the medium pressure in order to achieve a permanent layering and connection in the predetermined spaced areas.

Example 5:

A cotton fabric of the type mentioned in Example 1 was only wetted on one surface with water as an adhesive liquid. A roughly OjÖÖjj inch thick Vinylchlordidlagp r. with

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in this spaced holes of Tr'lgergewebes _(was placed on the wetted area and easily gegenübe. In this -festgehalten the perforated plastic sheet was distributed dry, free-flowing polyethylene powder which is where the holes were joined through. The plastic layer was left behind

regularly in the desired, specified test areas on Removed thermoplastic powder adhering to the carrier fabric.

Warming the fabric with moisture and plastic soil

how the subsequent cooling was carried out as in example 1. .

Example 6;

For quilting or basting, first a unit made of cotton wadding, Front and back fabric layer and polyethylene formed as a potential binding agent. The binder is located on the inner surface of one of the fabric layers, the wadding forms the intermediate lining and the binding

Central nimir.t one the eingezeich- in Fig. 5 in dotted lines "■ note particle arrangement. This unit is heated to soften the binding agent, pressed together firmly along the dotted lines and then cooled so that the softened binding agent rests in the areas under the lines and bonds the two fabric layers to one another. : iun hardens the binding agent and prevents bsw. stapled product a sideways evasion

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of cotton fibers when used as shoulder pads, bed covers or chair or seat cushions or cushions are used.

Example 7:

The procedure of Example 1 or 2 was followed with the exception of the following modifications. The finished fabric with the spaced polyethylene ties that previously, softened under heat and then hardened by cooling, was turned over and on its back the the same treatment as it received the front. The resulting web is suitable for use as lining for collars or other items of clothing multiple layers or layers.-tt; Purely such a use • The lining is placed between two layers of fabric and the like The formed unit is pressed together and then cooled so that the plastic previously softened under the urn to both of them. 71 The lining already sets or solidifies.

Finc.it this procedure for. Manufacturer, of! '"Hband application, The plastic binder particles are expediently at the beginning: essentially straight and crazy. About 1/8 to 3/8 inch, or rr. Of running lines, spaced on the fabric

the lines
applied, with / on the back one to those on the

Front of the rtoff ^ s approximately aligned sine.

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Uenn, to:; i the end of the cooling process, all lines from Once the particles have set, the treated fabric will then be cut into strips of tape, with the lines made of plastic, one on the front and one on the other on the back, near the center line of the "stripe" come running.

Example 8:

The procedure according to Example 1 was carried out with / exception

leads that 20 parts of very fine polyethylene with particles ^ sizes that are at least 803 a sieve with a clear "Go through a mesh size of 0.0o3 mn (200-mesh) and expediently microscopic in size, vmrde mixed into the 2 # solution of l'ethocel HG in barrels. Through this the liquid consists of 98 parts water for 2 parts Ilethocel HG and 20 parts of fine polyethylene, all of which are in a latex-like dispersion.

The application of this liquid has already been described above before the application of the polyethylene powder with a size of 0.29 mm clear mesh size (50 mesh) at the merging and fusing stage and the adhesion was tested after the subsequent cooling process. In embodiments modified from this example, the ratio of the previously applied, very fine polyethylene was from 10 to 40 percent by weight of the 2% Ilethocel HG

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Solution changed. Korans other thickeners than riethocel IiG or thermoplastics other than polyethylene for the binder for use, as already described above v / urde, so the front and eggs later applied thermoplast be any of the above. The pairing used, however, must be chosen so that both parts of a couple form mutual solvents at their merging temperatures. At this point that holds Thickener contributes to its properties and structure that prevent it from spreading (by not melting, in which

v: ie

first applied thermoplastic also / in the one applied later Thermoplastic).

It is understandable that the temperatures and heating are seldom so coordinated with one another that when one is increased, the other can be reduced in order to achieve the desired effect. In all examples, the spacing of the plastic particles or the original Hester or accumulations thereof is such that the ": di-agent" beads formed by heating are less than half - and for best results less than a quarter - of the total area of the surface of the By this distribution, the fabric is ^{flexible around the plastic points y} as around points of articulation. Layered webs can be made with thickness dimensions twice as large as that of a simple fabric, these being

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-layered "suspect in Hirer flexibility of a composition from two unconnected webs is more similar than two through one continuous layer Plastic connected ancestors. In addition, there is a wide area between the individual central points that are separated from one another larger free area for air permeability available.

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Claims (1)

¹ claims: 1. A method for producing a flexible, air-permeable, web-shaped product, thereby keaeelehnet-, that in successive operations on a surface of an air-permeable, flexible web for moistening A liquid is first applied to at least a portion of the surface and then applied to the surface Particles of thermoplastic material are brought in, UL wherein the web and the thermoplastic ^I: are in the liquid not soluble aterial and, the liquid is such that it causes as a temporary adhesive retention of the particles located on the wetted surface, in that then the non-through contact with the liquid festgehalterfffPartikel of the cursors are removed and then heat is applied to soften and permanently bond the particles to the surface, the liquid or the particles, or both, only at predetermined, spaced-apart locations ^ of such size and with such spacing on the Area to be applied that the captured particles do not form a continuous fiIn and to a large extent , V Maintaining the flexibility and air permeability of the Eaiin in the final product in its entirety is less than half cover the track surface. 2. The method according to claim 1, characterized in that pressure is applied in addition to the heat. 009816714 09 bad original 3. The method according to claim 2, characterized in that before the application of heat and pressure, a second, air-permeable and the sheet or sheet insoluble in the liquid on the surface and the types of particles trapped therein is applied, the pressure by pressing the two webs together with the particles remaining between them is practiced, polygamy connect the two courses with one another. H. Method according to claim 1, 2 or 3, characterized in that water is used as the liquid. o. The method according to claim 1, 2 or 3 »characterized in that the liquid is applied to the surface at predetermined points arranged at a distance from one another and consists of an aqueous solution of a thickener for water. which restricts the spreading of the water from its application areas and a sharply maintains the cracked outline of the moistened surface areas for the retention of the particles. 6. The method according to claim 5j, characterized in that that as a thickener a CL ^ alkyl ether of cellulose is used. 7 «Method according to claim 6, characterized in that the alkyl ether is replaced by a hydroxy-CL ^ -alkyl group ^wlrd '009818 / U09 BATH ORIGINAL, 8. The method according to claim 5, characterized in that the thickener used is kydroxypropylmethylcellulose will. 9. The method according to claim 1, 2 or 3 _f, characterized in that an aqueous solution of Ilethylcellulose is used as the liquid. 10. The method according to claim 8, characterized in that for 100 parts by weight of the solution, about 1 to 5 parts by weight of the thickener are used. 11. The method according to one of the parts 5 to 8, characterized in that the ratio of the thickener is selected so that the solution at 20 ⁰ C has a viscosity of 10,000-1,000,000 centipoise. 12. The method according to any one of claims 1 to 11, characterized characterized in that as thermoplastic material for the Particles a polyethylene is used, aas at ambient temperatures is solid, but melts at a temperature below the temperature at which destruction the air-permeable, flexible web occurs. / 13. The method according to claim 1, 2 or 3, characterized in that the liquid has about 10 to 4o £ of particles of a thermoplastic binding agent dispersed in the same means contains. 009818 / U09 BATH ORIGINAL l'J. Method according to one of claims 1 to ¹ J and 9 _S, characterized in that the liquid is applied in substantial amounts to 3.11120 flflciio, and that the particles are applied through recesses of a quadruple or a sheet or plate-shaped component, in which the openings are arranged at predetermined cells that are spaced apart from one another. Vj, method for. Adjusting a flexible, air-UUrChIT-Gsiren, bahnfi'rmi ^ en ^ rseu ^ nisses, thereby cekonnwoicl.net; It is essentially carried out in one of the cases described in sections 1 to 3. \ riru. 16. Flexible, air-permeable, web-shaped product, characterized by an association with particles made of therr.op las tables material, which at predetermined, im Distance from one another leaning against each other in their car-th v.'eni;: he as the eleven of the plains occupying positions all separate mass particles adhere to this. 17. Flexible, air-permeable, web-shaped product, thereby gelzennselehnet, since "it through a process produced according to one of claims 1 fcis 15 and 15 to 2 * 1 is. 009818 / U09 BATH ORIGINAL