DE102009010995B4 - Thermally fixable fabric - Google Patents

Abstract

Thermally fixable sheet, in particular usable as a fixable interlining fabric in the textile industry, with a carrier layer of a batt, which is bound in selected surface areas by means of a binder and unbound in the other surface areas, wherein on at least one side of the carrier layer at least a two-layer adhesive structure, which Binder and a thermoplastic polymer, is applied, characterized in that it is obtainable by a process comprising the following process steps: a) providing a carrier layer of a batt, b) pretreating the carrier layer by means of a low pressure water jet method c) applying a mixture of d) heat treating the carrier layer obtained from step c) with the mixture for drying and bonding fibers of the nonwoven web through the binder with the binder and the thermoplastic polymer on selected surface areas of the carrier layer tel to a nonwoven fabric and optionally cross-linking of the binder and for sintering together and the thermoplastic polymer on / with the surface of the carrier layer with the binder.

Description

The invention relates to a thermally fixable sheet, in particular usable as a fixable Einlagestoff in the textile industry, comprising a carrier layer of a batt, which is bound in selected Flächenbreichen by means of a binder and unbound in the other surface areas, wherein at least on one side of the carrier layer, a two-layer adhesive structure comprising a binder and a thermoplastic polymer is applied.

Inlays are the invisible framework of clothing. They ensure correct fits and optimal comfort. Depending on the application, they support processability, increase functionality and stabilize clothing. In addition to the clothing, these functions in technical textile applications, such. B. Furniture, upholstery and home textiles industry apply.

Important property profiles for interlining fabrics are softness, resilience, grip, detergency, and wear resistance of the substrate in use.

Inlay fabrics can consist of nonwovens, woven fabrics, knitted fabrics or comparable textile fabrics, which are usually additionally provided with an adhesive mass, as a result of which the insert can usually be adhesively bonded to an outer fabric by heat and / or pressure (fixing inlay). The insert is thus laminated to an outer fabric. The various textile fabrics mentioned have different property profiles depending on the manufacturing process. Fabrics consist of threads / yarns in warp and weft direction, knitted fabrics consist of threads / yarns which are connected by a stitch bond to form a textile fabric. Nonwovens consist of single fibers deposited into a batt, which are bound mechanically, chemically or thermally.

For mechanically bonded nonwovens, the batt is solidified by mechanically entangling the fibers. For this one uses either a needle technique or an entanglement by means of water or steam jets. Although needling results in soft products, but with a relatively labile feel, this technology was only able to establish itself in very special niches in the area of interlining materials. In addition, mechanical needling usually relies on a basis weight of> 60 g / m ² , which is too heavy for a variety of interlining applications.

Nonwoven fabrics solidified with water jets can be made in lower basis weights, but are generally flat and have little elasticity at break.

In the case of chemically bonded nonwovens, the batt is provided with a binder (eg acrylate binder) by impregnation, spraying or by means of otherwise customary application methods and then condensed. The binder binds the fibers together to form a nonwoven fabric, but results in a relatively stiff product being obtained because the binder spreads over much of the batt and adheres the fibers together throughout, as in a composite. Variations under control

Softness can only be compensated to a limited extent by fiber blends or binder selection.

Thermally bonded nonwoven fabrics are usually calendered or hot air-solidified for use as interlining materials. In the case of interlining nonwovens, punctiform calender consolidation has become established as a standard technology today. The batt usually consists of polyester or polyamide fibers specially developed for this process and is consolidated by means of a calender at temperatures around the melting point of the fiber, one roll of the calender being provided with a dot engraving. Such a point engraving is z. B. from 64 points / cm ² and z. B. have a weld of 12%. Without a point arrangement, the interlining would be sheet-like solidified and inappropriately hard to handle.

Depending on the fibers used, the point arrangement creates sufficient products, but the nonwoven fabric has a point pattern (point-seal grid). The softness of the interlining is due to the mobility of the fibers between the binding points. The film-like solidified binding point, however, rather contributes to the stiffening. On very light, thin outer fabrics, these dot patterns can also look ugly through the outer fabric. In addition, an adhesive mass is also additionally printed dot-shaped in a further operation. The two different point structures can achieve a visually disturbing effect when they overlap (moiré effect). It does arise sufficiently soft interlining with an appealing handle, however, with standard technology usually about 10-45% of the interlining are consolidated and covered by means of a point-seal grid and adhesive mass application.

The above-described various processes for the production of textile fabrics are known and described in textbooks and in the patent literature.

The adhesive compositions, which are usually applied to interlining materials, are thermally activated and usually consist of thermoplastic polymers. The technology for applying these adhesive compositions is carried out according to the prior art in a separate step on the fiber fabric. As adhesive technology, usually powder point, paste pressure, colon, scatter, hotmeltverfahren are known and described in the patent literature. The highest performance in terms of bonding with the outer fabric even after care treatment is now considered the Doppelpunktbeschichtung.

Such a colon has a two-layer structure, it consists of a lower and a top. The sub-point penetrates into the base material and serves as a barrier against adhesive mass recoil and for anchoring the top point particles. Usual sub-items consist for example of binder. Depending on the chemistry used, the sub-point also contributes, in addition to the anchoring in the base material, as a barrier layer to prevent the adhesive mass backlash. Primary adhesive component in the two-layer composite is primarily the top of a thermoplastic material which is sprinkled as a powder on the sub-point. After the spreading process, the excess part of the powder (between the points of the lower layer) is sucked off again. After subsequent sintering, the upper point is bound to the sub-point (thermal) and can serve as an adhesive to the upper point.

Depending on the intended use of the interlining material, a different number of dots are printed on and / or the amount of adhesive mass or the geometry of the dot pattern is varied. A typical number of points are z. B. CP 110 at a supply quantity of 9 g / m ² or CP 52 with a quantity of 11 g / m ² .

A disadvantage of the Doppelpunkttechnologie is that it requires a very high machine cost and investment, since the thermoplastic Oberpunktmaterial first scattered and then the excess between the adhesive mass points must be consuming again sucked. If this process does not succeed or is insufficient, undesired grip hardening in the laminate interlining material / outer fabric occurs after fixing, and contamination of the outer fabric due to falling loose polymer particles and because of the lack of a barrier layer can lead to layer bonding.

Also widespread is the paste printing. In this technology, an aqueous dispersion of thermoplastic polymers, usually in particle form with a particle size <80 microns, thickeners and flow aids are prepared and then pasty printed by means of a rotary screen printing process on the support layer usually punctiform. Subsequently, the printed carrier layer is subjected to a drying process. Pasty printing is less good in adhesive performance and in adhesive setback because of the lack of barrier layer than a bond coat application by the double-point method.

From the DE 10 2007 062 865 A1 a textile fixable fabric is described, which is particularly useful as a fixable Einlagestoff in the textile industry and comprises a carrier layer of a batt, which is bound in selected surface areas by means of a binder and unbound in the remaining area, the carrier layer at least on one side at least partially provided with a coating of an adhesive. The publication AT 339228 B describes a grid-shaped coating of heat seal adhesives on fabrics, in particular stiffening inserts or linings for garments, wherein the coating consists of at least two superimposed grid-shaped layers of different adhesive properties. From this document it is known to apply a binder mixture as a two-ply adhesive composition for the production of fixable interlining fabrics for the textile industry on selected areas of the textile product - for example a nonwoven fabric. The publication US 4,018,862 A describes a process for producing a nonwoven fabric in which hydrophilic or hydrophobic non-shrinking fibers and a heat shrinkable fiber are partially or patterned with a binder. The nonwoven carrier sheet may be wetted or pretreated by a low pressure water jet treatment before being provided with the binder mixture and chemically solidified.

Object of the present invention is to provide a textile fixable sheet, in particular for use as a fixable Einlagestoff in the textile industry, which very good haptic and has optical properties, has a very high adhesion to an outer fabric and, moreover, is also easy and inexpensive to produce.

This object is achieved with a textile fixable sheet with all features of claim 1. Preferred embodiments of the invention are described in the subclaims.

• a) Bereitstellen einer Trägerlage aus einem Faserflors, beispielsweise durch Herstellen eines Faserflors auf einer Ablagevorichtung in an sich bekannte Weise,
• b) Vorbehandeln des Faserflors mittels eines Niederdruck-Wasserstrahlverfahrens,
• c) Auftragen einer Mischung auf Flüssigkeitsbasis aus dem Bindemittel und dem thermoplastischen Polymer, vorzugsweise einer wässrigen Dispersion/Paste aus dem Bindemittel und dem thermoplastischen Polymer, auf ausgewählte Flächenbereiche des Faserflors und
• d) Temperaturbehandlung des aus Schritt c) erhaltenen Faserflors mit dem Gemisch zum Trocknen und zum Verbinden von Fasern des Faserflors durch das Bindemittel zu einem Vliesstoff und gegebenenfalls Vernetzung des Bindemittels und zum Auf- und Zusammensintern des thermoplastischen Polymers auf der/mit der der Oberfläche der. Trägerlage.

According to the invention, a thermally fixable sheet, which is useful in particular as a fixable Einlagestoff in the textile industry, and a carrier layer of a batt comprises, which is bound in selected surface areas by means of a binder and unbound in the remaining surface areas, wherein at least on one side of the Support layer is applied to a two-layer adhesive structure comprising a binder and a thermoplastic polymer, characterized in that it is obtainable by a process comprising the following process steps:

• a) providing a carrier layer from a batt, for example by producing a batt on a filing device in a manner known per se,
• b) pretreating the batt by means of a low pressure water jet method,
• c) applying a liquid-based mixture of the binder and the thermoplastic polymer, preferably an aqueous dispersion / paste of the binder and the thermoplastic polymer, to selected areas of the batt and
• d) heat treating the batt obtained from step c) with the mixture for drying and bonding fibers of the batt through the binder to a nonwoven fabric and optionally crosslinking the binder and for sintering the thermoplastic polymer together with the surface of the binder , Support layer.

According to a preferred embodiment of the invention, a process-specific residual moisture is set following the low-pressure water jet treatment.

The thermally fixable sheet according to the invention is characterized by a high adhesion. It has surprisingly been found that a binding point of binder and thermoplastic polymer, which functions as the actual adhesive, has a comparable high adhesion as an adhesive mass point of the above-described Doppelpunkttechnologie. In contrast to this, however, the colon according to the invention can be applied in a one-step process. The fact that the thermoplastic polymer is not applied in powder form, but in a mixture with binder, occurs in the inventive method, in contrast to the Doppelpunkttechnologie the problem of contamination or unwanted bonding by falling excess polymer powder not at all. The complex process step of suction is also eliminated. the inventive thermally fixable sheet is thus easy and inexpensive to produce.

The fact that the binding point of binder and thermoplastic polymer also partially forms the fiber bonding point at the same time results in a maximum possible mobility of the fibers between the solidification points. The textile fabric is thus characterized by a high resilience elasticity, a high softness and a pleasant feel. Since the textile fabric has no additional applied dot matrix in contrast to the known interlining materials, the unwanted moiré effect known from the prior art does not occur even when using translucent outer fabrics. The textile fabric according to the invention thus offers a pleasant visual appearance.

Since it is a bond with a binder, no expensive special fibers are necessary as in the thermal consolidation by the point-seal method, however, can be z. B. also achieve elastic products with specially crimped fibers.

By the ratio of the amount of binder used to the amount of thermoplastic polymer and by the variation of the wettability of the batt can be very strong set, abrasion resistant products and very soft products with surfaces that can correspond to roughened tissues obtained. High levels of thermoplastic polymer make it possible to achieve very high release forces. By modifying the surface of the thermoplastic polymer, preferably in particulate form, directly or indirectly from the liquor, its incorporation into the binder matrix can be varied. A very high coverage of the particle surface by other components of the binder matrix is detrimental to the achievable adhesive forces.

The selection of the fibers to be used for the carrier layer, of the binder and of the thermoplastic polymer takes place with regard to the respective application or the special quality requirements. The invention has no limits in principle here. The person skilled in the art can easily find the material combination suitable for his application here.

Thus, the fibers of the batt can be made of man-made fibers or natural fibers. Polyester, polyamide, cellulose regenerated and / or binder fibers are preferably used as man-made fibers, natural fibers being wool or cotton fibers. The man-made fibers may here comprise crimpable, crimped and / or uncracked staple fibers, crimpable, crimped and / or uncurled, directly spun continuous fibers and / or finite fibers, such as meltblown fibers.

The carrier layer can be constructed in one or more layers.

Fibers with a fiber titer of up to 6.7 dtex are particularly suitable for interlining materials. Coarser titers are usually not used because of their high fiber stiffness. Preferably, fiber titers in the range of 0.7 to 1.7 dtex, but also microfibers with a titer well below 1 dtex are conceivable.

The binder may be a binder of the acrylate-styrene-acrylate, ethylene-vinyl acetate, butadiene-acrylate, SBR, NBR and / or polyurethane type. There are polymers and mixed polymers of various types in use.

The thermoplastic polymer acting as the actual adhesive preferably comprises (co) -polyester, (co) -polyamide, polyolefin, polyurethane, ethylene-vinyl acetate-based polymers and / or combinations (blends and copolymers) of said polymers.

The mixture of binder and thermoplastic polymer, which may be based on a liquid, such as an aqueous dispersion or in the form of a paste, is preferably applied to the carrier layer in a dot pattern as described above. This ensures the softness and resilience of the material. The dot pattern may be regular or irregular. The present invention is by no means limited to dot patterns. The mixture of binder and thermoplastic polymer may be applied in any geometry, e.g. Example, in the form of lines, stripes, mesh or lattice-like structures, points with rectangular, diamond-shaped or oval geometry or the like.

• a) Bereitstellem einer Trägerlage aus einem Faserflor, z. B durch Herstellen einer Trägerlage aus einem Faserflor aus Fasern auf einer Ablagevorrichtung in an sich bekannte Weise,
• b) Vorbehandeln der Trägerlage mittels eines Niederdruckwasserstrahlverfahrens,
• c) Dann vorzugsweise Einstellung des faserflortextilen Materials auf einen prozessspezifischen Feuchtegehaltes
• d) Auftragen eines Gemisches aus Bindemittel und thermoplastischem Polymer auf ausgewählte Flächenbereiche der Trägerlage
• e) Temperaturbehandlung des aus Schritt c) erhaltenen Faserflors mit dem Gemisch zum Trocknen und zum Verbinden von Fasern des Faserflors durch das Bindemittel zu einem Vliesstoff und gegebenenfalls Vernetzung des Bindemittels und zum Auf- und Zusammensintern des thermoplastischen Polymers auf die/mit der Trägerlagenoberfläche mit dem Bindemittel.

A preferred method for producing a thermally fixable sheet according to the invention comprises the following measures:

• a) Provision of a carrier layer of a batt, z. B by producing a carrier layer from a batt of fibers on a storage device in a manner known per se,
• b) pretreating the carrier layer by means of a low pressure water jet method,
• c) Then preferably setting the fiber-textile material to a process-specific moisture content
• d) applying a mixture of binder and thermoplastic polymer to selected surface areas of the carrier layer
• e) heat treating the fibrous web obtained from step c) with the mixture for drying and bonding fibers of the fibrous web through the binder to a nonwoven fabric and optionally crosslinking the binder and for sintering the thermoplastic polymer together with the support layer surface Binder.

For the production of the batt, the known per se technologies can be used. For the weakly pre-bonded batt with moderate nonwoven strength, low cost fiber stocks can be used, provided they meet the handle requirements. Also, the litigation can be simplified. The binder in the dispersion aids in anchoring the polymer particles on the support layer.

In the case of the use of staple fibers, it is advantageous to card these with at least one card to a batt. Preference is here given to a Wirrlegung (random-technology), but also combinations of longitudinal and / or transverse laying or even more complicated carding arrangements are possible if special nonwoven properties are to be made possible or if multi-layer fiber structures are desired.

The carrier layer of a batt is pretreated by means of a low-pressure water jet method according to the invention. This is preferably carried out at pressures of up to 50 bar, more preferably with hole diameters of the single or multi-row arranged water jet nozzles of 70 .mu.m to 120 .mu.m and a distance from the support layer of 0.2 mm to 0.8 mm to each other.

It has been found that the use of a low-pressure water jet method in particular has a particularly advantageous effect on the properties of a batt for later use as a liner. Thus, the mechanical strength of the batt is just increased so much that further handling in the production process significantly improved. On the other hand, the weakly bonded in this way bobbin still characterized by an extremely soft handle, which makes them particularly suitable for use as a lining material in the textile industry, for example. Another advantage is that the fibrous webs are automatically moistened by the solidification process, so that the usual pre-wetting with water to increase the production reliability of the printing process, for example by means of padding / scooping rolls eliminated.

Following pretreatment, the fibrous web support layer is printed directly in a printing machine with the dispersion comprising the binder and the thermoplastic polymer.

The mixture is preferably in the form of a dispersion for printing.

• – vernetzende oder vernetzbare Bindemittel des Acrylat-, Styrolacrylat-, Ethylen-Vinylacetat-, Butadien-Acrylat SBR-, NBR- und/oder Polyurethan-Typs, sowie
• – Hilfsmittel, – wie Verdicker (beispielsweise partiell vernetzte Polyacrylate und deren Salze), – Dispergatoren, – Netzmittel, – Laufhilfsmittel, – Griffmodifikatoren (beispielsweise Silikonverbindungen oder Fettsäureesterderivate) und/oder – Füllstoffe
• – und ein oder mehrere als Haftmasse fungierende thermoplastische Polymere.

The dispersion used preferably comprises

• - Crosslinking or crosslinkable binders of acrylate, styrene-acrylate, ethylene-vinyl acetate, butadiene acrylate SBR, NBR and / or polyurethane-type, and
• Auxiliaries, such as thickeners (for example partially crosslinked polyacrylates and their salts), dispersants, wetting agents, flow aids, handle modifiers (for example silicone compounds or fatty acid ester derivatives) and / or fillers
• - And one or more adhesive mass acting as thermoplastic polymers.

The thermoplastic polymer is preferably in particulate form. It has surprisingly been found that when printing the carrier layer with a dispersion of the particles and the binder and possibly other components, the coarser particles are filtered off to a large extent on the surface of the porous support material. As a result, the coarser particles accumulate on the carrier surface, while part of the binder penetrates deeper into the porous carrier material, anchors there and leads to an additional bond in the carrier material. As a result, although the coarser polymer particles are incorporated in the binder matrix, at the same time their free (top) surface on the surface of the carrier layer is available for direct bonding to the outer material. It comes to the formation of a double point-like structure, which in contrast to the known Doppelpunktverfahren but only a single process step is required to produce this structure and also eliminates the costly extraction of excess powder.

Double-layer adhesive mass points are characterized by a low adhesive mass recoil, since the first applied layer acts as a barrier layer. Surprisingly, the double-point-like binding point according to the invention also exhibits this positive property. Obviously, in the method described here, an in-situ formation of a barrier layer in the bond point occurs, the kickback of the thermoplastic polymer is effectively slowed down and thereby the positive product properties are strengthened.

The size of the particles is based on the area to be printed, for example the desired size of a binding point. In the case of a dot pattern, the particle diameter may vary between> 0 μm and 500 μm. Basically, the particle size of the thermoplastic polymer is not uniform, but follows a distribution, i. H. one always has a particle size spectrum. The limits given above are the respective main fractions. The particle size must be matched to the desired application quantity, point size and point distribution.

Furthermore, the size of the particles is based on the porosity of the substrate to be printed. Experience from the liquid filtration show that with a particle diameter of about 1/3 of the average pore diameter of the carrier material is, after all, still 90% of the particles are filtered off at the surface of the carrier material. With a particle diameter of the order of half the mean pore diameter, even 99% of the particles are filtered off at the carrier surface. In practice, have proven in the commonly used batt with average pore diameters in the order of about 100 microns particles with particle diameters between 60 .mu.m and 200 .mu.m .. However, the skilled person it is easily possible, without inventive step with the aid of the above rule of thumb a carrier material having a predetermined porosity to find a suitable particle size.

The binders used are (mixed) polymer dispersions with << 50 μm particle size. The binders used may vary in their glass transition point, but for soft products "soft" binders with a Tg <10 ° C are usually preferred. The auxiliaries are used to adjust the viscosity of the paste. With suitable binders, the haptics of the interlining material can be varied within a wide range.

Subsequent to the printing process, the material is subjected to a temperature treatment for drying and possibly cross-linking of the binder and for sintering and / or co-sintering the thermoplastic polymer onto / with the binder layer and the carrier layer surface. Then the material is wound up.

A preferred application of the thermally fixable sheet is as a lining material in the textile industry. However, the use of a thermally fixable sheet according to the invention is not limited to this application. Other applications are conceivable, for example, as a fixable textile fabric for home textiles such as upholstered furniture, reinforced seat structures, seat covers or as a fixable and stretchable textile fabric in the automotive industry, in shoe components or in the field of hygiene / medical.

The invention will now be described, without limiting the generality, using the example of the use of a thermally fixable sheet according to the invention as a fixable interlining material in the textile industry.

Used test methods:

The fixations of the embodiments described below with a proprietary Popelin outer fabric were carried out on a continuous press at 140 ° C and 12 sec. The determination of the release force is based on DIN 54310 or DIN EN ISO 6330th The separation force listed are marked with "sp" if, in the release force test, the adhesion of the outer fabric / interlining material is so strong that, during the test procedure, the interlining material tears before complete peeling is carried out. This is a desirable maximum value, since the adhesion is in principle stronger than the internal strength of the interlining.

To determine the adhesive mass check, an inner sandwich is sent out of the insert with the outer material to the outside through the fixing press according to the settings specified above. The lower the adhesion of the inner layer, the lower the adhesive mass recoil.

Embodiment # 1:

A carded nonwoven web having a basis weight of 20 g / m ^2, consisting of 50% polyamide-6 fibers of 1.7 dtex / 38 mm and 50% PET (polyester) fibers 1.7 dtex / 34 mm is represented by a Preceded nozzle strip with 20 bar water pressure and deducted the excess water to a residual moisture content of 45%. The solidification is very weak due to the low pressure compared to a hydroentanglement solidification. The bonded to a very soft nonwoven fiber web then goes into a rotary screen printing machine with 110 points / cm ² and is printed dot-shaped with a binder-polymer dispersion with 9 g / m ^{2 support} . The printed nonwoven fabric is dried in a belt dryer at 175 ° C., the binder is crosslinked and the polymer particles are sintered on and sintered together.

The binder-polymer dispersion is composed as follows: self- Butyl / ethyl acrylate polymer Binderdisp. with t _g = -28 ° C 9 parts CoPolyamide powder 60-130 μ with melting range around 115 ° C 24 parts Wetting agent a // n / i Part 1 thickener 2 parts water 59 parts

The product properties of the fabric produced according to the embodiment is shown in Table 1.

Embodiment # 2:

A carded nonwoven web having a basis weight of 30 g / m ^2, consisting of 100% (polyester) -Recyclat fibers 1.7 dtex / 34 mm is prewetted by a nozzle strip with 15 bar water pressure / compacted and at a second jet strip of the other side subjected to 35 bar water pressure. The excess water is drawn off to a residual moisture content of 160%. The solidification is very weak due to the low pressure compared to a hydroentanglement solidification. The bonded to a very soft nonwoven pulp then goes into a rotary screen printing machine with 52 points / cm ² and is printed dot-shaped with a binder-polymer dispersion with 15 g / m ^{2 support} . The printed nonwoven fabric is dried in a belt dryer at 180 ° C., the binder is crosslinked and the polymer particles are sintered up and sintered together.

The binder-polymer dispersion is composed as follows: self- Butyl / ethyl acrylate polymer Binderdisp. with t _g = -28 ° C 4 parts self- Butyl / ethyl acrylate polymer Binderdisp. with t _g = -10 ° C 4 parts CoPolyamide powder 80-170 μ with melting range around 109 ° C 28 parts Wetting agent a // n / i 1.5 part thickener 2.5 parts water 54 parts

Table 1

It can be seen from the values in the tables that all textile fabrics according to the invention are distinguished by high mechanical strength and high elongation and good abrasion resistance with simultaneous high separation forces.

Claims (15)

Thermally fixable fabric, in particular usable as a fixable interlining fabric in the textile industry, with a carrier layer of a batt, which is bound in selected surface areas by means of a binder and unbound in the other surface areas, wherein on at least one side of the carrier layer at least a two-layer adhesive structure, which Binder and a thermoplastic polymer, is applied, characterized in that it is obtainable by a process comprising the following process steps: a) providing a carrier layer of a batt, b) pretreating the carrier layer by means of a low pressure water jet method c) applying a mixture of the binder and the thermoplastic polymer on selected surface areas of the carrier layer; and d) heat treating the carrier layer obtained from step c) with the mixture for drying and bonding fibers of the fiber web through the binder to form a nonwoven fabric and, if appropriate, crosslinking of the binder and for sintering the thermoplastic polymer together and / or on the surface of the carrier layer with the binder. Thermally fixable sheet material according to claim 1, characterized in that the batt is crimpable, crimped and / or uncracked staple fibers, crimpable, crimped and / or uncurled directly spun continuous fibers or finite fibers, such as meltblown fibers of polyester, polyamide, cellulose regenerated and / or binding fibers and / or natural fibers, such as wool or cotton fibers. Thermally fixable sheet material according to one of claims 1 to 2, characterized in that the fiber denier of the fibers is <6.7 dtex. Thermally fixable sheet material according to one of claims 1 to 3, characterized in that the thermoplastic polymer is (co) polyester, (co) polyamide, polyolefin, polyurethane, ethylene vinyl acetate-based polymers and / or combinations (mixtures and copolymers) of comprises mentioned polymers. Thermally fixable sheet material according to one of claims 1 to 4, characterized in that the thermoplastic polymer is present in the mixture in particle form. Thermally fixable sheet material according to claim 5, characterized in that the particles have a diameter which is smaller than the average pore diameter of the carrier layer and at least 1/3 (33%) of the average pore diameter. Thermally fixable sheet material according to claim 6, characterized in that the particles have a diameter <500 microns. Thermally fixable sheet material according to claim 7, characterized in that the particles have a diameter of 60 microns to 200 microns. Thermally fixable sheet material according to any one of claims 1 to 7, characterized in that the polymeric / mixed polymerized binder of the acrylate, styrene acrylate, ethylene-vinyl acetate, butadiene-acrylate, SBR, NBR and / or polyurethane type comprises , Thermally fixable sheet material according to one of claims 1 to 8, characterized in that the mixture of thermoplastic polymer and binder is applied in the form of a dispersion. Thermally fixable fabric according to claim 9, characterized in that the dispersion additionally comprises auxiliaries such as thickeners, dispersants, wetting agents, flow aids, handle modifiers and / or fillers. Thermally fixable fabric according to one of claims 1 to 10, characterized in that the dispersion is applied by means of a screen printing process. Thermally fixable fabric according to one of claims 1 to 11, characterized in that the mixture or the dispersion of binder and thermoplastic polymer is applied in a regular or irregularly distributed dot pattern on the support layer. Thermally fixable fabric according to one of claims 1 to 13, characterized in that the pretreatment of the batt is carried out by means of low-pressure water jet process at pressures preferably from 15 bar to 50 bar. Thermally fixable fabric according to one of claims 1 to 14, characterized in that the mechanically pretreated batt is adjusted to a residual moisture content of 30-500%.