EP2207925B1 - Thermofusible textile fabric - Google Patents

Thermofusible textile fabric Download PDF

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Publication number
EP2207925B1
EP2207925B1 EP08848520A EP08848520A EP2207925B1 EP 2207925 B1 EP2207925 B1 EP 2207925B1 EP 08848520 A EP08848520 A EP 08848520A EP 08848520 A EP08848520 A EP 08848520A EP 2207925 B1 EP2207925 B1 EP 2207925B1
Authority
EP
European Patent Office
Prior art keywords
binder
sheet material
material according
fibers
thermoplastic polymer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP08848520A
Other languages
German (de)
French (fr)
Other versions
EP2207925A2 (en
Inventor
Peter Grynaeus
Oliver Staudenmayer
Steffen Kremser
Holger KÖHNLEIN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102007062865A external-priority patent/DE102007062865B4/en
Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Priority to PL08848520T priority Critical patent/PL2207925T3/en
Priority to EP08848520A priority patent/EP2207925B1/en
Publication of EP2207925A2 publication Critical patent/EP2207925A2/en
Application granted granted Critical
Publication of EP2207925B1 publication Critical patent/EP2207925B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/66—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions at spaced points or locations
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/645—Impregnation followed by a solidification process
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/645—Impregnation followed by a solidification process
    • D04H1/65—Impregnation followed by a solidification process using mixed or composite fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/12—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length

Definitions

  • the invention relates to a thermally fixable fabric, in particular usable as a fixable interlining fabric in the textile industry, with a carrier layer of a textile material, on which a two-ply adhesive composition 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, you can improve processability, increase functionality and stabilize clothing. In addition to clothing, these functions can be used in technical textile applications, e.g. Furniture, upholstery and the home textile 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 deposit will thus laminated on 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 via a stitch bond to a textile fabric. Nonwovens consist of single fibers deposited into a batt, which are bound mechanically, chemically or thermally.
  • the batt is solidified by mechanically entangling the fibers.
  • the fibers For this one uses either a needle technique or an entanglement by means of water or steam jets.
  • needling results in soft products, but with a relatively labile feel, this technology was only able to find its way into special niches in the area of interlinings.
  • mechanical needling one usually relies on a basis weight> 50 g / m 2 , which is too heavy for a large number 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.
  • the batt is provided with a binder (eg acrylate binder) by impregnation, spraying or by means of otherwise customary application methods and then condensed.
  • a binder eg acrylate binder
  • 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 in grip or 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.
  • punctiform calender consolidation has now become established as the standard technology.
  • the batt typically 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 dot-engraved.
  • Such a dot engraving consists, for example, of 64 dots / cm 2 and may, for example, have a welding surface of 12%. Without a point arrangement, the interlining would be sheet-like solidified and inappropriately hard to handle.
  • 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.
  • adhesive technology usually powder point, paste pressure, colon, scatter, hotmeltrose 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 Doppelticianbe Anlagen.
  • 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 of for example, from binder.
  • 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 bonded to the sub-point (thermal) and can serve as an adhesive to the outer fabric.
  • 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, for example, CP 110 with a run of 9 g / m 2 or CP 52 with a run amount of 11 g / m 2 .
  • a disadvantage of the Doppeltician is that it requires a very high machine cost and Invest, since the thermoplastic Obertician first scattered and then the excess between the adhesive mass points consuming must be sucked again. If this process is not successful or not sufficient, undesired grip hardening in the laminate of one-day fabric / outer fabric occurs after fixing and staining of the outer fabric by falling loose polymer particles and, due to the lack of a barrier layer, to layer sticking can occur.
  • paste printing Also widespread is the paste printing.
  • 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.
  • Paste printing is in the Bonding performance and in the adhesive mass recoil because of the lack of barrier layer less good than a Haftmassencited after the double-point method.
  • Object of the present invention is to provide a textile fixable fabric, in particular for use as a fixable Einlagestoff in the textile industry, which has very good haptic and optical properties, has a very high adhesion to an outer fabric and is also still easy and inexpensive to produce ,
  • 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 acts as the actual adhesive, has a similar high adhesion as an adhesive mass point of the above-described colon technology. 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 applied not in powder form, but in a mixture with binder occurs in the inventive method, in contrast to the Doppeltician the problem of contamination or unwanted bonding by falling excess or 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 selection of the material 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.
  • the carrier layer according to the invention consists of a textile material, such as a fabric, a knitted fabric or a knit or the like.
  • the carrier layer consists of a nonwoven fabric.
  • the nonwoven, but also the threads or yarns of the above-mentioned other textile materials may consist of chemical fibers or natural fibers.
  • chemical fibers are preferably polyester, polyamide, cellulose regenerated and / or binder fibers used as natural fibers wool or cotton fibers.
  • the man-made fibers can in this case be crimpable, crimped and / or uncrimped staple fibers, crimpable, crimped and / or uncurled, directly spun filaments 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 fabrics.
  • Coarser titers are usually not used because of their high fiber stiffness. Fibers are preferred in the range of 1.7 dtex, but also microfibers with a titer ⁇ 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.
  • 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.
  • thermoplastic polymer By the ratio of the amount of binder used to the amount of thermoplastic polymer and by the variation of the wettability of the support layer can be very strong set, abrasion resistant products and very soft nonwoven fabrics with surfaces that can correspond to roughened fabrics obtained.
  • High levels of thermoplastic polymer make it possible to achieve very high release forces.
  • 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 mixture of binder and thermoplastic polymer which may be based on a liquid, for example in the form of 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.
  • the bonding of the fibers of the nonwoven fabric to a nonwoven fabric can be effected mechanically (conventional needling, water jet technique), by means of a binder or thermally.
  • a moderate nonwoven strength of the carrier layer prior to printing is sufficient, since the carrier layer during printing with the mixture of Binders and thermoplastic polymer is additionally applied with binder and solidified.
  • cost-effective fiber raw materials can also be used, provided that they meet the requirements of the handle. Also, the litigation can be simplified.
  • the binder in the dispersion aids in anchoring the polymer particles on the support layer.
  • the carrier layer of a textile material or nonwoven fabric can be 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.
  • the thermoplastic polymer is preferably in particulate form. It has surprisingly been found that the binder is separated from the coarser particles when printing the textile carrier layer with a dispersion of the particles and the binder and possibly other components, wherein the coarser particles more on the top of the binding surface, for example the dot surface, come to rest.
  • the binder binds in addition to its function to anchor in the carrier layer and to bind them additionally, the coarser particles.
  • Double-layer adhesive mass points are characterized by a low adhesive mass recoil, since the first applied layer acts as a barrier layer. Surprisingly, also shows the colon-like Bonding point according to the invention, this positive property. Obviously, in the method described here, an in-situ formation of a barrier layer in the bond point occurs, the recoil of the thermoplastic polymer is effectively decelerated, 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.
  • the particle diameter may vary between> 0 ⁇ and 500 ⁇ .
  • the particle size of the thermoplastic polymer is not uniform, but follows a distribution, i. 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.
  • 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.
  • the material is subjected to a temperature treatment for drying and, if appropriate, crosslinking of the binder and for sintering and / or sintering together the thermoplastic polymer onto / with the binder layer and the carrier layer surface, in particular the nonwoven surface. Then the material is wound up.
  • thermally fixable sheet is as a lining material in the textile industry.
  • the use of a thermally fixable sheet according to the invention is not limited to this application.
  • Other applications are conceivable, for example as fixable textile fabric for home textiles such as upholstered furniture, reinforced seat structures. Seat upholstery or as a fixable and stretchable textile fabric in the automotive industry, in shoe components or in the field of hygiene / medical.
  • 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 values 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.
  • 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.
  • a batt with a basis weight of 35g / m 2 of 100% PES-Fasd 1,7dtx / 38mm is carded.
  • This batt is solidified at 221 ° C in a calender punctiform, wherein the bonding temperature on the Rolled roller side was lowered by 5 ° C compared to the standard method.
  • the fibrous web which is weakly bonded to a nonwoven, then passes into a rotary screen printing machine at 110 dots / cm 2 and is printed with a binder-polymer dispersion punctiform with 18 g / m 2 (dry) 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.
  • a carded fibrous 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 of 1.7 dtex / 34 mm is passed through a jet strip with 20 bar water pressure vorgenetzt and the excess water withdrawn 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 pulp 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 crosslinked and the polymer particles and sintered together.
  • a randomly deposited Filêtnflor with a basis weight of 40g / m 2 consisting of the spunbond fabric spun PA-6 is placed next to a collecting tape, then bonded through a pair of rollers as in Example 2 at 190 ° C punctiform to a soft spunbonded fabric.
  • the soft spunbond fabric goes into a rotary screen printing machine with a stencil of 37 dots / cm 2 and is dot-printed with a binder-polymer dispersion with 16 g / m 2 edition.
  • the printed nonwoven fabric is then dried in a belt dryer at 175 ° C., the binder is crosslinked and the polymer particles are sintered up and sintered together.
  • Table 1 shows a comparison between a fabric according to Example 1 and a thermally bonded comparative example.
  • Table 1 example 1 Example 2
  • Example 3 Points / cm 2 110 110 37 50% PA6 Fiber mixture. 100% standard PES 50% standard PES 100% PA6 spunbond Flor [g / m 2 ] 35 25 40 Binder + Thermopl.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Nonwoven Fabrics (AREA)
  • Laminated Bodies (AREA)
  • Manufacturing Of Multi-Layer Textile Fabrics (AREA)
  • Details Of Garments (AREA)
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Description

Die Erfindung betrifft ein thermisch fixierbares Flächengebilde, insbesondere verwendbar als fixierbarer Einlagestoff in der Textilindustrie, mit einer Trägerlage aus einem textilen Material, auf welcher eine zweilagige Haftmassenstruktur, welche ein Bindemittel und ein thermoplastisches Polymer umfasst, aufgebracht ist.The invention relates to a thermally fixable fabric, in particular usable as a fixable interlining fabric in the textile industry, with a carrier layer of a textile material, on which a two-ply adhesive composition comprising a binder and a thermoplastic polymer, is applied.

Einlagestoffe sind das unsichtbare Gerüst der Bekleidung. Sie sorgen für korrekte Passformen und optimalen Tragekomfort. Je nach Anwendung unterstützen Sie die Verarbeitbarkeit, erhöhen die Funktionalität und stabilisieren die Bekleidung. Neben der Bekleidung können diese Funktionen in technischen Textilanwendungen, z.B. Möbel-, Polster- sowie der Heimtextilien-Industrie Anwendung finden.Inlays are the invisible framework of clothing. They ensure correct fits and optimal comfort. Depending on the application, you can improve processability, increase functionality and stabilize clothing. In addition to clothing, these functions can be used in technical textile applications, e.g. Furniture, upholstery and the home textile industry apply.

Wichtige Eigenschaftsprofile für Einlagestoffe sind Weichheit, Sprungelastizität, Griff, Wasch- und Pflegebeständigkeit sowie ausreichende Abriebbeständigkeit des Trägermaterials im Gebrauch.Important property profiles for interlining fabrics are softness, resilience, grip, detergency, and wear resistance of the substrate in use.

Einlagestoffe können aus Vliesstoffen, Gewebe, Gewirken oder vergleichbaren textilen Flächengebilden bestehen, die meist zusätzlich mit einer Haftmasse versehen sind, wodurch die Einlage mit einem Oberstoff meist thermisch durch Hitze und/oder Druck verklebt werden kann (Fixiereinlage). Die Einlage wird somit auf einen Oberstoff laminiert. Die genannten verschiedenen textilen Flächengebilde haben je nach Herstellungsverfahren unterschiedliche Eigenschaftsprofile. Gewebe bestehen aus Fäden/Garnen in Kette- und Schussrichtung, Gewirke bestehen aus Fäden/Gamen, die über eine Maschenbindung zu einem textilen Flächengebilde verbunden werden. Vliesstoffe bestehen aus zu einem Faserflor abgelegten Einzelfasern, die mechanisch, chemisch oder thermisch gebunden werden.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 deposit will thus laminated on 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 via a stitch bond to a textile fabric. Nonwovens consist of single fibers deposited into a batt, which are bound mechanically, chemically or thermally.

Bei mechanisch gebundenen Vliesstoffen wird das Faserflor durch mechanisches Verschlingen der Fasern verfestigt. Hierzu verwendet man entweder eine Nadeltechnik oder ein Verschlingen mittels Wasser- bzw. Dampfstrahlen. Die Vernadelung ergibt zwar weiche Produkte, allerdings mit relativ labilem Griff, so dass sich diese Technologie im Bereich der Einlagestoffe nur in ganz speziellen Nischen durchsetzten konnte. Außerdem ist man in der mechanischen Vernadelung üblicherweise auf ein Flächengewicht > 50 g/m2 angewiesen, was für eine Vielzahl an Einlagestoffanwendungen zu schwer ist.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 find its way into special niches in the area of interlinings. In addition, in mechanical needling, one usually relies on a basis weight> 50 g / m 2 , which is too heavy for a large number of interlining applications.

Mit Wasserstrahlen verfestigte Vliesstoffe lassen sich in niedrigeren Flächengewichten darstellen, sind im Allgemeinen aber flach und wenig sprungelastisch.Nonwoven fabrics solidified with water jets can be made in lower basis weights, but are generally flat and have little elasticity at break.

Bei chemisch gebundenen Vliesstoffen wird der Faserflor durch Imprägnieren, Besprühen oder mittels sonst üblicher Auftragsmethoden mit einem Bindemittel (z.B. Acrylatbinder) versehen und anschließend kondensiert. Das Bindemittel bindet die Fasern untereinander zu einem Vliesstoff, hat aber zur Folge, dass ein relativ steifes Produkt erhalten wird, da sich das Bindemittel über weite Teile des Faserflors verteilt erstreckt und die Fasern wie in einem Verbundwerkstoff durchgehend miteinander verklebt. Variationen im Griff bzw. Weichheit lassen sich nur bedingt über Fasermischungen oder Bindemittelauswahl kompensieren.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 in grip or softness can only be compensated to a limited extent by fiber blends or binder selection.

Thermisch gebundene Vliesstoffe werden zur Verwendung als Einlagestoffe üblicherweise kalander- oder durch Heißluft verfestigt. Bei Eintagevliesstoffen hat sich heutzutage die punktförmige Kalanderverfestigung als Standardtechnologie durchgesetzt. Das Faserflor, besteht dabei in der Regel aus speziell für diesen Prozess entwickelten Fasern aus Polyester oder Polyamid und wird mittels eines Kalanders bei Temperaturen um den Schmelzpunkt der Faser verfestigt, wobei eine Walze des Kalanders mit einer Punktgravur versehen ist. Solch eine Punktgravur besteht z.B. aus 64 Punkten/cm2 und kann z.B. eine Verschweißfläche von 12% besitzen. Ohne eine Punktanordnung würde der Einlagestoff flächenartig verfestigt und ungeeignet hart im Griff sein.Thermally bonded nonwoven fabrics are usually calendered or hot air-solidified for use as interlining materials. In the case of single-layer nonwovens, punctiform calender consolidation has now become established as the standard technology. The batt typically 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 dot-engraved. Such a dot engraving consists, for example, of 64 dots / cm 2 and may, for example, have a welding surface of 12%. Without a point arrangement, the interlining would be sheet-like solidified and inappropriately hard to handle.

Die oben beschriebenen unterschiedlichen Verfahren zur Herstellung von textilen Flächengebilden sind bekannt und in Fachbüchern und in der Patentliteratur beschrieben.The above-described various processes for the production of textile fabrics are known and described in textbooks and in the patent literature.

Die Haftmassen, welche üblicherweise auf Einlagestoffe aufgebracht sind, sind thermisch aktivierbar und bestehen in der Regel aus thermoplastischen Polymeren. Die Technologie zum Aufbringen dieser Haftmassebeschichtungen erfolgt nach dem Stand der Technik in einem separaten Arbeitsschritt auf das Faserflächengebilde. Als Haftmassentechnologie sind üblicherweise Pulverpunkt-, Pastendruck-, Doppelpunkt-, Streu-, Hotmeltverfahren bekannt und in der Patentliteratur beschrieben. Als am leistungsfähigsten hinsichtlich Verklebung mit dem Oberstoff auch nach Pflegebehandlung wird heute die Doppelpunktbeschichtung angesehen.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.

Ein solcher Doppelpunkt weist einen zweischichtigen Aufbau auf, er besteht aus einem Unter- und einem Oberpunkt. Der Unterpunkt dringt in das Basismaterial ein und dient als Sperrschicht gegen Haftmassenrückschlag und zur Verankerung der Oberpunktpartikel. Übliche Unterpunkte bestehen aus beispielsweise aus Bindemittel. Je nach eingesetzter Chemie trägt der Unterpunkt neben der Verankerung im Basismaterial auch als Sperrschicht zur Verhinderung des Haftmassenrückschlages bei. Hauptklebekomponente im zweischichtigen Verbund ist primär der Oberpunkt aus einem thermoplastischen Material, welcher als Pulver auf den Unterpunkt aufgestreut wird. Nach dem Streuvorgang wird der überschüssige Teil des Pulvers (zwischen den Punkten der unteren Schicht) wieder abgesaugt. Nach anschließendem Sintern ist der Oberpunkt auf dem Unterpunkt (thermisch) gebunden und kann als Klebstoff zum Oberstoff dienen.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 of for example, from 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 bonded to the sub-point (thermal) and can serve as an adhesive to the outer fabric.

Je nach Einsatzzweck des Einlagestoffes werden eine unterschiedliche Anzahl an Punkten aufgedruckt und/oder die Haftmassenmenge oder die Geometrie des Punktmusters variiert. Eine typische Punktanzahl sind z.B. CP 110 bei einer Auflage von 9 g/m2 bzw. CP 52 mit einer Auflagenmenge von 11 g/m2.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, for example, CP 110 with a run of 9 g / m 2 or CP 52 with a run amount of 11 g / m 2 .

Nachteilig an der Doppelpunkttechnologie ist, dass sie einen sehr hohen Maschinenaufwand und Invest erfordert, da das thermoplastische Oberpunktmaterial zuerst aufgestreut und dann der Überschuss zwischen den Haftmassepunkten aufwendig wieder abgesaugt werden muss. Gelingt dieser Vorgang nicht oder nicht ausreichend, so entstehen nach dem Fixieren ungewollte Griffverhärtungen im Laminat Eintagestoff/Oberstoff, und es kann zu Verschmutzungen des Oberstoffs durch abfallende lose Polymerpartikel und wegen der fehlenden Sperrschicht zu Lagenverklebungen kommen.A disadvantage of the Doppelpunkttechnologie is that it requires a very high machine cost and Invest, since the thermoplastic Oberpunktmaterial first scattered and then the excess between the adhesive mass points consuming must be sucked again. If this process is not successful or not sufficient, undesired grip hardening in the laminate of one-day fabric / outer fabric occurs after fixing and staining of the outer fabric by falling loose polymer particles and, due to the lack of a barrier layer, to layer sticking can occur.

Weit verbreitet ist auch der Pastendruck. Bei dieser Technologie wird eine wässrige Dispersion aus thermoplastischen Polymeren, üblicherweise in Partikelform mit einer Partikelgröße < 80 µm, Verdickern und Laufhilfsmitteln hergestellt und dann pastös mittels eines Rotationssiebdruckverfahrens auf die Trägerlage meist punktförmig aufgedruckt. Anschließend wird die bedruckte Trägerlage einem Trocknungsprozess unterzogen. Pastendruck ist in der Haftleistung und im Haftmassenrückschlag wegen der fehlenden Sperrschicht weniger gut als ein Haftmassenauftrag nach dem Doppelpunktverfahren. Aufgabe der vorliegenden Erfindung ist, ein textiles fixierbares Flächengebilde, insbesondere zur Verwendung als fixierbarer Einlagestoff in der Textilindustrie, bereitzustellen, welches sehr gute haptische und optische Eigenschaften aufweist, ein sehr hohes Haftvermögen zu einem Oberstoff besitzt und darüber hinaus auch noch einfach und kostengünstig herstellbar ist.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. Paste printing is in the Bonding performance and in the adhesive mass recoil because of the lack of barrier layer less good than a Haftmassenauftrag after the double-point method. Object of the present invention is to provide a textile fixable fabric, in particular for use as a fixable Einlagestoff in the textile industry, which has very good haptic and optical properties, has a very high adhesion to an outer fabric and is also still easy and inexpensive to produce ,

Diese Aufgabe wird mit einem textilen fixierbaren Flächengebilde mit allen Merkmalen des Patentanspruchs 1 gelöst. Bevorzugte Ausgestaltungen der Erfindung sind in den Unteransprüchen beschrieben.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.

Gemäß der Erfindung ist ein thermisch fixierbaren Flächengebilde, welches insbesondere als fixierbarer Einlagestoff in der Textilindustrie verwendbar ist mit einer Trägerlage aus einem textilen Material, auf weicher eine zweilagige Haftmassenstruktur aufgebracht ist, welche ein Bindemittel und ein thermoplastisches Polymer umfasst, dadurch gekennzeichnet, dass es erhältlich ist durch ein Verfahren mit den folgenden Verfahrensschritten:

  1. a) Bereitstellen der Trägerlage,
  2. b) Auftragen einer Mischung auf Flüssigkeitsbasis aus dem Bindemittel und dem thermoplastischem Polymer, vorzugsweise einer wässrigen Dispersion/Paste aus dem Bindemittel und dem thermoplastischem Polymer, auf ausgewählte Flächenbereiche der Trägerlage und
  3. c) Temperaturbehandlung der aus Schritt b) erhaltenen Trägerlage mit dem Gemisch zum Trocknen und gegebenenfalls Vernetzung des Bindemittels und zum Auf- und Zusammensintern des thermoplastischen Polymers auf der/mit der Oberfläche der Trägerlage mit dem Bindemittel.
According to the invention, a thermally fixable sheet, which is useful in particular as a fixable Einlagestoff in the textile industry with a carrier layer of a textile material on which a two-layer adhesive composition is applied comprising a binder and a thermoplastic polymer, characterized in that it is available is by a process with the following process steps:
  1. a) providing the carrier layer,
  2. b) applying a liquid-based mixture of the binder and the thermoplastic polymer, preferably an aqueous dispersion / paste of the binder and the thermoplastic polymer, on selected surface areas of the carrier layer and
  3. c) heat treatment of the carrier layer obtained from step b) with the mixture for drying and optionally crosslinking of the binder and for sintering together and sintering the thermoplastic polymer on / with the surface of the carrier layer with the binder.

Das erfindungsgemäße thermisch fixierbare Flächengebilde zeichnet sich durch ein hohes Haftvermögen aus. Es hat sich in überraschender Weise gezeigt, dass ein Bindungspunkt aus Bindemittel und thermoplastischem Polymer, welches als das eigentliche Haftmittel fungiert, ein vergleichbar hohes Haftvermögen besitzt wie ein Haftmassenpunkt der oben beschriebenen Doppelpunkttechnologie. Im Gegensatz zu diesem lässt sich der erfindungsgemäße Doppelpunkt aber in einem Einschrittverfahren auftragen. Dadurch, dass das thermoplastische Polymer nicht in Pulverform, sondern in einem Gemisch mit Bindemittel aufgetragen wird tritt bei dem erfindungsgemäßen Verfahren im Gegensatz zur Doppelpunkttechnologie das Problem der Verunreinigung oder ungewollten Verklebung durch abfallendes überschüssiges oder Polymerpulver überhaupt nicht auf. Der aufwendige Verfahrensschritt des Absaugens entfällt ebenfalls. Das erfindungsgemäße thermisch fixierbare Flächengebilde ist damit einfach und kostengünstig herstellbar.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 acts as the actual adhesive, has a similar high adhesion as an adhesive mass point of the above-described colon technology. 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 applied not 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 or 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.

Die Auswahl des für die Trägerlage einzusetzenden Materials, des Bindemittels und des thermoplastischen Polymers erfolgt im Hinblick auf den jeweiligen Anwendungszweck bzw. die besonderen Qualitätsanforderungen. Durch die Erfindung sind hier prinzipiell keinerlei Grenzen gesetzt. Der Fachmann kann hier leicht die für seine Anwendung geeignete Materialkombination auffinden.The selection of the material 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.

Die Trägerlage besteht erfindungsgemäß aus einem textilen Material, wie zum Beispiel einem Gewebe, einem Gewirke oder einem Gestrick oder dergleichen. Vorzugsweise besteht die Trägerlage aus einem Vliesstoff.The carrier layer according to the invention consists of a textile material, such as a fabric, a knitted fabric or a knit or the like. Preferably, the carrier layer consists of a nonwoven fabric.

Der Vliesstoff, aber auch die Fäden oder Garne der oben erwähnten weiteren textilen Materialien können aus Chemiefasern oder aber auch aus Naturfasern bestehen. Als Chemiefasern kommen vorzugsweise Polyester-, Polyamid-, Celluloseregenerat- und/oder Bindefasem zum Einsatz, als Naturfasern Wolle- oder Baumwollfasern.The nonwoven, but also the threads or yarns of the above-mentioned other textile materials may consist of chemical fibers or natural fibers. As chemical fibers are preferably polyester, polyamide, cellulose regenerated and / or binder fibers used as natural fibers wool or cotton fibers.

Die Chemiefasern können hierbei kräuselbare, gekräuselte und/oder ungekräuselte Stapelfasern, kräuselbare, gekräuselte und/oder ungekräuselte, direkt gesponnene Endlosfasern und/oder endliche Fasern, wie Meltblown-Fasem, umfassen.The man-made fibers can in this case be crimpable, crimped and / or uncrimped staple fibers, crimpable, crimped and / or uncurled, directly spun filaments and / or finite fibers, such as meltblown fibers.

Die Trägerlage kann ein- oder mehrlagig aufgebaut sein.The carrier layer can be constructed in one or more layers.

Besonders geeignet für Einlagestoffe sind Fasern mit einem Fasertiter bis zu 6,7 dtex. Gröbere Titer werden aufgrund Ihrer großen Fasersteifigkeit normalerweise nicht eingesetzt. Bevorzugt sind Fasertiter im Bereich von 1,7 dtex, doch auch Mikrofasern mit einem Titer < 1 dtex sind denkbar.Particularly suitable for interlining fabrics are fibers with a fiber titer of up to 6.7 dtex. Coarser titers are usually not used because of their high fiber stiffness. Fibers are preferred in the range of 1.7 dtex, but also microfibers with a titer <1 dtex are conceivable.

Das Bindemittel kann ein Bindemittel des Acrylat-, Styrolacrylat-, Ethylen-Vinylacetat-, Butadien-acrylat-, SBR-, NBR- und/oder Polyurethan-Typs sein.The binder may be a binder of the acrylate, styrene-acrylate, ethylene-vinyl acetate, butadiene-acrylate, SBR, NBR and / or polyurethane type.

Das als eigentliches Haftmittel fungierende thermoplastische Polymer umfasst vorzugsweise (Co-)Polyester-, (Co)-Polyamid-, Polyolefin-, Polyurethan-, Ethylenvinylacetat-basierende Polymere und/oder Kombinationen (Gemische und Copolymerisate) der genannten Polymere.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.

Durch das Verhältnis der Menge an eingesetztem Bindemittel zur Menge an thermoplastischem Polymer und durch die Variation der Benetzbarkeit der Trägerlage lassen sich sehr stark abgebundene, abriebfeste Produkte und sehr weiche Vliesstoffe mit Oberflächen, die gerauten Geweben entsprechen können, erhalten. Durch hohe Anteile an thermoplastischem Polymer lassen sich sehr hohe Trennkräfte realisieren. Durch Modifikation der Oberfläche des vorzugsweise in Partikelform vorliegenden thermoplastischen Polymers, direkt oder indirekt aus der Flotte, kann dessen Einbindung, in die Bindemittelmatrix variiert werden. Eine sehr starke Belegung der Partikeloberfläche durch sonstige Komponenten der Bindemittelmatrix ist den erzielbaren Haftkräften abträglich.By the ratio of the amount of binder used to the amount of thermoplastic polymer and by the variation of the wettability of the support layer can be very strong set, abrasion resistant products and very soft nonwoven fabrics with surfaces that can correspond to roughened fabrics 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.

Das Gemisch aus Bindemittel und thermoplastischem Polymer, das auf Basis einer Flüssigkeit, wie zum Beispiel in Form einer wässrigen Dispersion, oder in Form einer Paste vorliegen kann, wird vorzugsweise, wie oben beschrieben, in einem Punktmuster auf die Trägerlage aufgebracht. Damit ist die Weichheit und Sprungelastizität des Materials gewährleistet. Das Punktmuster kann regulär oder irregulär verteilt sein. Die vorliegende Erfindung ist aber keinesfalls auf Punktmuster beschränkt. Die Mischung aus Bindemittel und thermoplastischem Polymer kann in beliebigen Geometrien aufgebracht werden, z. B. auch in Form von Linien, Streifen, netz- oder gitterartigen Strukturen, Punkten mit rechteckiger, rautenförmiger oder ovaler Geometrie oder dergleichen.The mixture of binder and thermoplastic polymer, which may be based on a liquid, for example in the form of 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.

Ein bevorzugtes Verfahren zur Herstellung eines erfindungsgemäßen thermisch fixierbaren Flächengebildes umfasst die folgenden Maßnahmen:

  1. a) Bereitstellen einer Trägerlage aus einem textilen Material,
  2. b) Auftragen eines Gemischs aus Bindemittel und thermoplastischem Polymer auf ausgewählte Flächenbereiche der Trägerlage,
  3. c) Temperaturbehandlung der aus Schritt b) erhaltenen Trägerlage mit dem Gemisch zum Trocknen 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:
  1. a) providing a carrier layer of a textile material,
  2. b) applying a mixture of binder and thermoplastic polymer to selected areas of the carrier layer,
  3. c) heat treating the carrier layer obtained from step b) with the mixture for drying and optionally crosslinking the binder and for sintering the thermoplastic polymer together and / or onto the carrier layer surface with the binder.

Für die Herstellung des Vliesstoffs können die eingangs dargestellten Technologien eingesetzt werden. Das Verbinden der Fasern des Faserflors zu einem Vliesstoff kann hierbei mechanischer (konventionelles Vernadeln, Wasserstrahltechnik), mittels eines Bindemittels oder thermisch erfolgen. Hierbei reicht allerdings eine moderate Vliesstofffestigkeit der Trägerlage vor dem Bedrucken aus, da die Trägerlage beim Bedrucken mit dem Gemisch aus Bindemittel und thermoplastischem Polymer noch zusätzlich mit Bindemittel beaufschlagt und verfestigt wird. Für die moderaten Vliesstofffestigkeiten können auch kostengünstige Faserrohstoffe eingesetzt werden, vorausgesetzt, dass sie die Anforderungen an den Griff erfüllen. Auch kann die Prozessführung vereinfacht werden. Das Bindemittel in der Dispersion hilft bei der Verankerung der Polymerpartikel auf der Trägerlage.For the production of the nonwoven fabric, the technologies described above can be used. The bonding of the fibers of the nonwoven fabric to a nonwoven fabric can be effected mechanically (conventional needling, water jet technique), by means of a binder or thermally. However, a moderate nonwoven strength of the carrier layer prior to printing is sufficient, since the carrier layer during printing with the mixture of Binders and thermoplastic polymer is additionally applied with binder and solidified. For the moderate non-woven fabric strengths, cost-effective fiber raw materials can also be used, provided that they meet the requirements of the handle. Also, the litigation can be simplified. The binder in the dispersion aids in anchoring the polymer particles on the support layer.

Im Falle der Verwendung von Stapelfasern ist es vorteilhaft, diese mit mindestens einer Krempel zu einem Faserflor zu kardieren. Bevorzugt ist hier eine Wirrlegung (Random-Technologie), doch auch Kombinationen aus Längs- und/oder Querlegung bzw. noch kompliziertere Krempelanordnungen sind möglich, wenn spezielle Vliesstoffeigenschaften ermöglicht werden sollen bzw. wenn mehrlagige Faserstrukturen gewünscht werden.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.

Die Trägerlage aus einem textilen Material bzw. aus Vliesstoff kann direkt in einer Druckmaschine mit der Dispersion die das Bindemittel und das thermoplastische Polymer umfasst, bedruckt werden. Dazu kann es eventuell sinnvoll sein, die Trägerlage vor dem Druckvorgang mit textilen Hilfsmitteln zu benetzen oder auf beliebige andere Art so zu behandeln, dass der Druckprozess produktionssicherer wird.The carrier layer of a textile material or nonwoven fabric can be printed directly in a printing machine with the dispersion comprising the binder and the thermoplastic polymer. For this purpose, it may be useful to wet the carrier layer prior to printing with textile aids or to treat in any other way so that the printing process is more reliable production.

Vorzugsweise liegt das Gemisch zum Bedrucken in Form einer Dispersion vor.The mixture is preferably in the form of a dispersion for printing.

Die verwendete Dispersion umfasst vorzugsweise

  • vernetzende oder vernetzbare Bindemittel des Acrylat-, Styrolacrylat-, Ethylen-Vinylacetat-, Butadien-acrylat-, SBR-, NBR- und/oder Polyurethan- Typs, sowie
  • Hilfsmittel,
    • o wie Verdicker (beispielsweise partiell vernetzte Polyacrylate und deren Salze),
    • ○ Dispergatoren,
    • ○ Netzmittel,
    • ○ Laufhitfsmittel,
    • ○ 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 the acrylate, styrene-acrylate, ethylene-vinyl acetate, butadiene-acrylate, SBR, NBR and / or polyurethane type, and
  • aids,
    • o such as thickeners (for example partially crosslinked polyacrylates and their salts),
    • ○ dispersants,
    • ○ wetting agent,
    • ○ running aids,
    • ○ handle modifiers (for example silicone compounds or fatty acid ester derivatives) and / or
    • ○ Fillers
  • and one or more adhesive polymers acting as adhesive.

Das thermoplastische Polymer liegt vorzugsweise in Partikelform vor. Es hat sich in überraschender Weise gezeigt, dass sich beim Bedrucken der textilen Trägerlage mit einer Dispersion aus den Partikeln und dem Bindemittel und ggf. noch weiteren Komponenten das Bindemittel von den gröberen Partikeln separiert, wobei die gröberen Partikel mehr auf der Oberseite der Bindungsfläche, beispielsweise der Punktoberfläche, zum Liegen kommen. Das Bindemittel bindet neben seiner Funktion sich in der Trägerlage zu verankern und diese zusätzlich zu binden, die gröberen Partikel. Gleichzeitig kommt es zu einer teilweisen Trennung von Partikeln und Bindemittel an der Oberfläche der Trägerlage. Das Bindemittel dringt tiefer in das Material ein, während sich die Partikel an der Oberfläche anreichern. Dadurch sind die gröberen Polymerpartikel in der Bindemittelmatrix zwar eingebunden, gleichzeitig steht ihre freie (Ober-)Fläche an der Oberfläche des Vliesstoffs aber zur direkten Verklebung mit dem Oberstoff zur Verfügung. Es kommt zur Ausbildung einer doppelpunktähnlichen Struktur, wobei zur Erzeugung dieser Struktur im Gegensatz zum bekannten Doppelpunktverfahren aber nur ein einziger Verfahrensschritt erforderlich ist und auch das aufwendige Absaugen überschüssigen Pulvers entfällt.The thermoplastic polymer is preferably in particulate form. It has surprisingly been found that the binder is separated from the coarser particles when printing the textile carrier layer with a dispersion of the particles and the binder and possibly other components, wherein the coarser particles more on the top of the binding surface, for example the dot surface, come to rest. The binder binds in addition to its function to anchor in the carrier layer and to bind them additionally, the coarser particles. At the same time, there is a partial separation of particles and binder on the surface of the carrier layer. The binder penetrates deeper into the material as the particles accumulate on the surface. 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 nonwoven fabric is available for direct bonding to the outer fabric. It comes to the formation of a colon-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.

Doppelschichtige Haftmassenpunkte zeichnen sich durch einen geringen Haftmassenrückschlag aus, da die zuerst aufgebrachte Schicht, als Sperrschicht wirkt. Überraschenderweise zeigt auch der doppelpunktähnliche Bindungspunkt gemäß der Erfindung diese positive Eigenschaft. Offensichtlich kommt es bei dem hier beschriebenen Verfahren zu einer in-situ Ausbildung einer Sperrschicht im Bindungspunkt, der Rückschlag des thermoplastischen Polymers wird effektiv gebremst, und dadurch werden die positiven Produkteigenschaften gestärkt.Double-layer adhesive mass points are characterized by a low adhesive mass recoil, since the first applied layer acts as a barrier layer. Surprisingly, also shows the colon-like Bonding point according to the invention, this positive property. Obviously, in the method described here, an in-situ formation of a barrier layer in the bond point occurs, the recoil of the thermoplastic polymer is effectively decelerated, and thereby the positive product properties are strengthened.

Die Größe der Partikel orientiert sich an der zu bedruckenden Fläche, beispielsweise der gewünschten Größe eines Bindungspunktes. Im Falle eines Punktmusters kann der Partikeldurchmesser zwischen >0 µ und 500 µ variieren. Grundsätzlich ist die Partikelgröße des thermoplastischen Polymers nicht einheitlich, sondern folgt einer Verteilung, d.h. man hat immer ein Partikelgroβenspektrum vorliegen. Die oben angegebenen Grenzen sind die jeweiligen Hauptfraktionen. Die Partikelgröße muss abgestimmt sein auf die gewünschte Auftragsmenge, Punktgröβe und Punktverteilung.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 μ and 500 μ. Basically, the particle size of the thermoplastic polymer is not uniform, but follows a distribution, i. 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.

Die eingesetzten Bindemittel können in Ihren Glasumwandlungspunkt variieren, doch sind für weiche Produkte üblicherweise "weiche" Bindemittel mit einem Tg < 10°C bevorzugt. Die Hilfsstoffe dienen zur Viskositätseinstellung der Paste. Mit geeigneten Bindemitteln lässt sich die Haptik des Einlagestoffes in einem weiten Rahmen variieren.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.

Im Anschluss an den Druckprozess wird das Material einer Temperaturbehandlung zum Trocknen und ggf. Vernetzung des Bindemittels sowie zum Auf- und/oder Zusammensintern des thermoplastischen Polymers auf die/mit der Binderschicht und der Trägerlagenoberfläche, insbesondere der Vliesstoffoberfläche, unterzogen. Anschließend wird das Material aufgewickelt.Subsequent to the printing process, the material is subjected to a temperature treatment for drying and, if appropriate, crosslinking of the binder and for sintering and / or sintering together the thermoplastic polymer onto / with the binder layer and the carrier layer surface, in particular the nonwoven surface. Then the material is wound up.

Eine bevorzugte Anwendung des thermisch fixierbaren Flächengebildes ist die als Einlagestoff in der Textilindustrie. Der Einsatz eines erfindungsgemäßen thermisch fixierbaren Flächengebildes ist jedoch nicht auf diese Anwendung beschränkt. Auch andere Anwendungen sind denkbar, beispielsweise als fixierbares textiles Flächengebilde bei Heimtextilien wie Polstermöbel, verstärkte Sitzkonstruktionen. Sitzbezügen oder als fixierbares und dehnfähiges textiles Flächengebilde in der Automobilausstattung, bei Schuhkomponenten oder im Bereich Hygiene/Medikal.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 fixable textile fabric for home textiles such as upholstered furniture, reinforced seat structures. Seat upholstery or as a fixable and stretchable textile fabric in the automotive industry, in shoe components or in the field of hygiene / medical.

Nachfolgend wird die Erfindung ohne Beschränkung der Allgemeinheit am Beispiel der Verwendung eines erfindungsgemäßen thermisch fixierbaren Flächengebildes als fixierbarer Einlagestoff in der Textilindustrie beschrieben.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.

Eingesetzte Testmethoden:Used test methods:

Die Fixierungen der nachfolgend beschriebenen Ausführungsbeispiele mit einem hauseigenen Popelin-Oberstoff erfolgten auf einer Durchlaufpresse bei 140°C und 12 sec. Die Bestimmung der Trennkraft erfolgt in Anlehnung an DIN 54310 bzw. DIN EN ISO 6330. Die aufgeführten Trennkraftwerte werden mit "sp" gekennzeichnet, wenn beim Trennkrafttest die Haftung Oberstoff/Einlagestoff so stark ist, dass bei der Testdurchführung der Einlagestoff zerreißt, bevor eine vollständige Abschälung durchgeführt ist. Dies ist ein anzustrebender Maximalwert, da die Haftung prinzipiell stärker ist als die innere Festigkeit des Einlagestoffes.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 values 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.

Zur Bestimmung des Haftmassenrückschlages wird ein Innensandwich aus der Einlage mit dem Oberstoff nach außen durch die Fixierpresse nach den oben angegebenen Einstellungen geschickt. Je geringer die Haftung der inneren Lage ist desto geringer ist der Haftmassenrückschlag.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.

1. Ausführungsbeispiel: 1st embodiment:

Ein Faserflor mit einem Flächengewicht von 35g/m2 aus 100% PES-Fasem 1,7dtx/38mm wird gekrempelt. Dieser Faserflor wird bei 221°C in einem Kalander punktförmig verfestigt, wobei die Bindetemperatur auf der Glattwalzenseite um 5°C gegenüber dem Standardverfahren gesenkt wurde. Damit konnte eine größer Weichheit des Vliesstoffes erreicht werden. Der schwach zu einem Vliesstoff gebundener Faserflor geht anschließend in eine Rotationssiebdruckmaschine mit 110 Punkten/cm2 und wird mit einer Bindemittel-Polymer-Dispersion punktförmig mit 18g/m2 (trocken) Auflage bedruckt. Der bedruckter Vliesstoff wird in einem Bandtrockner bei 175°C getrocknet, das Bindemittel vernetzt und die Polymerpartikel auf- und zusammengesintert.A batt with a basis weight of 35g / m 2 of 100% PES-Fasd 1,7dtx / 38mm is carded. This batt is solidified at 221 ° C in a calender punctiform, wherein the bonding temperature on the Rolled roller side was lowered by 5 ° C compared to the standard method. Thus, a greater softness of the nonwoven fabric could be achieved. The fibrous web, which is weakly bonded to a nonwoven, then passes into a rotary screen printing machine at 110 dots / cm 2 and is printed with a binder-polymer dispersion punctiform with 18 g / m 2 (dry) 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.

Die Bindemittel-Polymer-Dispersion ist wie folgt zusammengesetzt: Selbstvemetzende Butyl-/Ethyl-Acrylat Binderdisp. mit tg = -12°C 12 Teile CoPolyamid-Pulver (Partikeldurchmesser von >0 bis zu 160µ mit Schmelzbereich um 115°C 24 Teile Netzmittel a//n/i 1 Teil Verdicker 3 Teile Wasser 60 Teile The binder-polymer dispersion is composed as follows: Self-crosslinking butyl / ethyl acrylate Binderdisp. with t g = -12 ° C 12 parts CoPolyamide powder (particle diameter from> 0 up to 160μ with melting range around 115 ° C 24 parts Wetting agent a // n / i Part 1 thickener 3 parts water 60 parts

2. Ausführungsbeispiel 2nd embodiment

Ein gekrempelter Faserflor mit einem Flächengewicht von 20g/m2, bestehend aus 50% Polyamid-6- Fasern mit 1,7dtex/38mm und 50% PET(Polyester)-Fasern mit 1,7dtex/34mm wird durch einen Düsenstreifen mit 20 bar Wasserdruck vorgenetzt und das überschüssige Wasser bis auf eine Restfeuchte von 45 % abgezogen. Die Verfestigung ist durch den niedrigen Druck sehr schwach im Vergleich zur einer Hydroentanglement-Verfestigung. Der zu einem sehr weichen Vliesstoff gebundener Faserflor geht anschließend in eine Rotationssiebdruckmaschine mit 110 Punkten/cm2 und wird mit einer Bindemittel-Polymer-Dispersion mit 9 g/m2 Auflage punktförmig bedruckt. Der bedruckte Vliesstoff wird in einem Bandtrockner bei 175°C getrocknet, das Bindemittel vernetzt und die Polymerpartikel auf- und zusammengesintert.A carded fibrous 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 of 1.7 dtex / 34 mm is passed through a jet strip with 20 bar water pressure vorgenetzt and the excess water withdrawn 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 pulp 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 . Of the printed nonwoven fabric is dried in a belt dryer at 175 ° C, the binder crosslinked and the polymer particles and sintered together.

Die Bindemittel-Polymer-Dispersion ist hierbei wie folgt zusammengesetzt: Selbstvemetzende Butyl-/Ethyl-Acrylat Binderdisp. mit tg = -28°C 9 Teile CoPolyamid-Pulver 60 - 130µ mit Schmelzbereich um 110°C 27 Teile Netzmittel a//n/i 1 Teil Dispergiermittel 2 Teile Verdicker 2 Teile Wasser 59 Teile The binder-polymer dispersion is composed as follows: Self-crosslinking butyl / ethyl acrylate Binderdisp. with t g = -28 ° C 9 parts CoPolyamide powder 60 - 130μ with melting range around 110 ° C 27 parts Wetting agent a // n / i Part 1 dispersants 2 parts thickener 2 parts water 59 parts

3. Ausführungsbeispiel 3rd embodiment

Ein wirr abgelegter Filamentenflor mit einem Flächengewicht von 40g/m2 bestehend aus nach dem Spinnvliesstoffverfahren ersponnen PA-6 wird zu nächst auf ein Auffangband abgelegt, dann durch ein Walzenpaar analog Beispiel 2 bei 190°C punktförmig zu einem weichen Spinnvliesstoff gebunden. Der weiche Spinnvliesstoff geht in eine Rotationssiebdruckmaschine mit einer Schablone mit 37 Punkten/cm2 und wird mit einer Bindemittel-Polymer-Dispersion mit 16 g/m2 Auflage punktförmig bedruckt. Der bedruckte Vliesstoff wird anschließend in einem Bandtrockner bei 175°C getrocknet, das Bindemittel vernetzt und die Polymerpartikel auf- und zusammengesintert.A randomly deposited Filamentenflor with a basis weight of 40g / m 2 consisting of the spunbond fabric spun PA-6 is placed next to a collecting tape, then bonded through a pair of rollers as in Example 2 at 190 ° C punctiform to a soft spunbonded fabric. The soft spunbond fabric goes into a rotary screen printing machine with a stencil of 37 dots / cm 2 and is dot-printed with a binder-polymer dispersion with 16 g / m 2 edition. The printed nonwoven fabric is then dried in a belt dryer at 175 ° C., the binder is crosslinked and the polymer particles are sintered up and sintered together.

Die Bindemittel-Polymer-Dispersion ist hierbei wie folgt zusammengesetzt: Selbstvernetzende Butyl-/Ethyl-Acrylat Binderdisp. mit tg = -18°C 7 Teile Selbstvemetzende Butyl-/Ethyl-Acrylat Binderdisp. mit tg = -10°C 7 Teile CoPolyamid-Pulver 80 - 200p mit Schmelzbereich um 120°C 32 Teile Netzmittel a//n/i 1 Teil Dispergiermittel 2 Teile Verdicker 1 Teile Wasser 50 Teile The binder-polymer dispersion is composed as follows: Self-crosslinking butyl / ethyl acrylate Binderdisp. with t g = -18 ° C 7 parts Self-crosslinking butyl / ethyl acrylate Binderdisp. with tg = -10 ° C 7 parts CoPolyamide powder 80 - 200p with melting range around 120 ° C 32 parts Wetting agent a // n / i Part 1 dispersants 2 parts thickener 1 parts water 50 parts

Die Produkteigenschaften der gemäß den Ausführungsbeispielen hergestellten textilen Flächengebilden sind in Tabelle 1 aufgeführt. Tabelle 2 zeigt einen Vergleich zwischen einem textilen Flächengebilde gemäß Beispiel 1 und einem thermisch gebundenen Vergleichsbeispiel. Tabelle 1 Beispiel 1 Beispiel 2 Beispiel 3 Punkte/cm2 110 110 37 50% PA6 Fasermischung. 100% Standard PES 50% Standard PES 100% PA6 Spunbond Flor[g/m2] 35 25 40 Binder + Thermopl.-Polymer-Auflage [g/m2] 18 9 16 Primärhaftung [N/5cm] fixiert bei 140°C/12sec auf PES/Baumwoll-Stoff 140°C/12s/2,5 bar 12,8 sp 7,1 sp 24,3 Haftung [N/5cm] nach Pflege fixiert bei 120°C/12sec auf PES/Baumwoll-Stoff 1x40°C-Wäsche 10,8 sp 6,3 sp 21,0 1x60°C-Wäsche 10,1 sp 5,6 sp 18,3 1xChemische Reinigung 13,2 sp 7,0 sp 22,7 Haftmassenrückschlag [N/10cm] fixiert bei 120°C/12sec auf PES/Baumwoll-Stoff Innensandwich-Rückschlag (S-RV) 0,32 0,16 1,1 Kraft-Dehnungsverhalten Höchst-Zugkraft (HKZ) längs [N/5cm] 24 13 42 HZ-Kraft-Dehnung (HZKD) längs [%] 12 14 27 HZK quer [N/5cm] 5,2 3,7 22 HZKD quer [%] 26 22 34 Abriebbeständigkeit Rückseite sehr gut gut gut Tabelle 2 Beispiel 1 Thermisch gebunden im Vergleich zu Beispiel 1 100% PES std. Flor[g/m2] 35 35 Flor+Binder [g/m2] 41 40 Polymer Auflage [g/m2] 12 12 140°C/12s/2,5 bar 12,8 sp 11,2 1x80°C-Wäsche 10,1 sp 9,0 1xChemische Reinigung 13,2 sp 10,1 Innensandwich-Rückschlag (S-RV) 0,32 0,27 HZK längs [N/5cm] 24 18 HZKD längs [%] 12 8 HZK quer [N/5cm] 5,2 2,9 HZKD quer [%] 26 7 Abriebbeständigkeit Rückseite sehr gut gut The product properties of the textile fabrics produced according to the exemplary embodiments are listed in Table 1. Table 2 shows a comparison between a fabric according to Example 1 and a thermally bonded comparative example. Table 1 example 1 Example 2 Example 3 Points / cm 2 110 110 37 50% PA6 Fiber mixture. 100% standard PES 50% standard PES 100% PA6 spunbond Flor [g / m 2 ] 35 25 40 Binder + Thermopl. Polymer overlay [g / m 2 ] 18 9 16 Primary adhesion [N / 5cm] fixed at 140 ° C / 12sec on PES / cotton fabric 140 ° C / 12s / 2.5 bar 12.8 sp 7.1 sp 24.3 Adhesion [N / 5cm] after care fixed at 120 ° C / 12sec on PES / cotton fabric 1x40 ° C Wash 10.8 sp 6.3 sp 21.0 1x60 ° C Wash 10.1 sp 5.6 sp 18.3 1xChemical cleaning 13.2 sp 7.0 sp 22.7 Adhesive mass recoil [N / 10cm] fixed at 120 ° C / 12sec on PES / cotton fabric Indoor Sandwich Kickback (S-RV) 0.32 0.16 1.1 Stress-strain behavior Maximum tensile force (HKZ) longitudinal [N / 5cm] 24 13 42 HZ-force-strain (HZKD) along [%] 12 14 27 HZK cross [N / 5cm] 5.2 3.7 22 HZKD cross [%] 26 22 34 Abrasion resistance backside very well Good Good example 1 Thermally bonded in comparison to Example 1 100% PES std. Flor [g / m 2 ] 35 35 Flor + binder [g / m 2 ] 41 40 Polymer overlay [g / m 2 ] 12 12 140 ° C / 12s / 2.5 bar 12.8 sp 11.2 1x80 ° C Wash 10.1 sp 9.0 1xChemical cleaning 13.2 sp 10.1 Indoor Sandwich Kickback (S-RV) 0.32 0.27 HZK lengthwise [N / 5cm] 24 18 HZKD longitudinal [%] 12 8th HZK cross [N / 5cm] 5.2 2.9 HZKD cross [%] 26 7 Abrasion resistance backside very well Good

Man erkennt aus den Werten in den Tabellen, dass alle erfindungsgemäßen textilen Flächengebilde sich durch eine hohe mechanische Festigkeit und hohe Dehnung und gute Abriebbeständigkeit auszeichnen bei gleichzeitig hohen Trennkräften.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 (12)

  1. Thermofusible sheet material, especially useful as a fusible interlining in the textile industry, having a backing ply composed of a textile material and supporting a two-layered bonding compound structure comprising a binder and a thermoplastic polymer, characterized in that it is obtainable by a process having the steps of:
    a) providing a backing ply,
    b) applying a mixture of the binder and the thermoplastic polymer to selected areal regions of the backing ply, and
    c) thermally treating the backing ply obtained from step b) and supporting the mixture to dry and optionally crosslink the binder and to sinter the thermoplastic polymer onto/with the surface of the backing ply supporting the binder.
  2. Thermofusible sheet material according to Claim 1, characterized in that the textile material comprises a nonwoven fabric.
  3. Thermofusible sheet material according to Claim 2, characterized in that the nonwoven fabric comprises crimpable, crimped and/or uncrimped
    staple fibers, crimpable, crimped and/or uncrimped directly spun continuous filament fibers or finite fibers, such as meltblown fibers composed of polyester, polyamide, regenerated cellulose and/or binder fibers and/or natural fibers, such as wool and cotton fibers.
  4. Thermofusible sheet material according to any one of Claims 1 to 3, characterized in that the fiber linear density of the fibers is < 6.7 dtex.
  5. Thermofusible sheet material according to any one of Claims 1 to 4, characterized in that the thermoplastic polymer comprises (co) polyester-, (co)polyamide-, polyolefin-, polyurethane-, ethylene vinyl acetate-based polymers and/or combinations (mixtures and chain growth addition copolymers) of the polymers mentioned.
  6. Thermofusible sheet material according to any one of Claims 1 to 5, characterized in that the thermoplastic polymer is present in the mixture in the form of particles.
  7. Thermofusible sheet material according to Claim 6, characterized in that the particles have a diameter < 500 µm.
  8. Thermofusible sheet material according to any one of Claims 1 to 7, characterized in that the binder comprises the acrylate, styrene-acrylate, ethylene-vinyl acetate, butadiene-acrylate, SBR, NBR and/or polyurethane type.
  9. Thermofusible sheet material according to any one of Claims 1 to 8, characterized in that the mixture of thermoplastic polymer and binder is applied in the form of a dispersion.
  10. Thermofusible sheet material according to Claim 9, characterized in that the dispersion further comprises auxiliaries, such as thickeners, dispersants, wetting agents, flow control agents, hand modifiers and/or fillers.
  11. Thermofusible sheet material according to any one of Claims 1 to 10, characterized in that the dispersion is applied by means of a screen printing process.
  12. Thermofusible sheet material according to any one of Claims 1 to 11, characterized in that the mixture or dispersion of binder and thermoplastic polymer is applied to the backing ply in a regularly or irregularly distributed pattern of points.
EP08848520A 2007-11-09 2008-11-10 Thermofusible textile fabric Not-in-force EP2207925B1 (en)

Priority Applications (2)

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PL08848520T PL2207925T3 (en) 2007-11-09 2008-11-10 Thermofusible textile fabric
EP08848520A EP2207925B1 (en) 2007-11-09 2008-11-10 Thermofusible textile fabric

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE102007053914 2007-11-09
DE102007062865A DE102007062865B4 (en) 2007-11-09 2007-12-21 Textile fixable fabric
EP08008246 2008-04-30
DE202008013239 2008-10-08
PCT/EP2008/009480 WO2009059801A2 (en) 2007-11-09 2008-11-10 Thermofusible textile fabric
EP08848520A EP2207925B1 (en) 2007-11-09 2008-11-10 Thermofusible textile fabric

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EP2207925A2 EP2207925A2 (en) 2010-07-21
EP2207925B1 true EP2207925B1 (en) 2013-03-20

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EP (1) EP2207925B1 (en)
JP (1) JP2011503372A (en)
KR (1) KR101217043B1 (en)
CN (1) CN101849057B (en)
BR (1) BRPI0820305A2 (en)
ES (1) ES2405547T3 (en)
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ES2405547T3 (en) 2013-05-31
US8354144B2 (en) 2013-01-15
US20100272912A1 (en) 2010-10-28
EP2207925A2 (en) 2010-07-21
CN101849057A (en) 2010-09-29
PL2207925T3 (en) 2013-08-30
WO2009059801A3 (en) 2009-09-11
WO2009059801A2 (en) 2009-05-14
KR20100061528A (en) 2010-06-07
KR101217043B1 (en) 2012-12-31
BRPI0820305A2 (en) 2015-05-19
JP2011503372A (en) 2011-01-27

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