DE102008003966A1 - Textile fabric - Google Patents

Abstract

The invention relates to a textile fabric, in particular textile insert fabric made of a textile fabric with antistatic effect of perpendicular and / or diagonal crossing threads, such as fabric, knitted fabric weft, knit with weft Multiaxialgewirke, braid, Fadenlagen-Nähwirkstoff, wherein in weft and Warp system additionally a core-sheath yarn with in particular at least one Umwindungsgarn wound electrically non-conductive material filaments with a lobal electrically conductive core filament is arranged so that the yarns intersect and the distance of such adjacent core-sheath yarns in the warp and weft directions is at least 4 and not more than 100 mm and that the mass fraction of the electrically conductive component based on the total mass of the textile interlining material is 1 to 10%.

Description

The The invention relates to a textile fabric, in particular a textile interlining fabric made of a textile fabric from perpendicular and / or diagonal crossing threads, such as woven fabric, knitted fabric, weft with weft thread, multi-axial knitted fabric, Braid, Fadenlagen-Nähwirkstoff o. Ä., There is and as a shaping and shape-retaining insert under textiles, in particular Outer material for upper, leisure, sports and workwear, Protective clothing, is used.

Textile Inlay fabrics have long been mainly used in garments in the front, in collar u. Ä. Used to the outer material and thus the entire assembled object state, mobility and recovery after use stresses or after To lend washes or other care needs.

The Optics, the grip, the dimensional stability and the wearing comfort of the garment or another with interlining provided object depend on type, construction, mass and equipment of the deposit. Also current fashion trends, the use of new outer fabric constructions, the trend towards ever lighter ones Outer material influences the type, properties and use such textile interlining.

in principle find all textile fabric types application as Einlagestoff, from tissue with hair yarn as weft material over Warp knit fabrics of synthetic textured yarns up to nonwovens with strength achieved by chemical or thermal solidification and stiffness. Also product groups in the sense of a more comprehensive Functional fulfillment, such as the combination of knitted fabric with one Nonwoven fabrics are in use.

there These textile interlinings are usually by chemical or thermal Treatment equipped without shrinking and on a surface side with a mostly punctiform applied adhesive material provided with the appropriate upper parts in the sense a completely effective deformation and recovery by Bonding to be connected.

Generally Then the interlining fabrics form the skeleton of the clothing objects. They ensure that the form is permanently preserved, that no wrinkles form, they support the soft, flowing Case and prevent unwanted compression, the z. B. while sitting the wearer of such clothing articles can be done. Their shape and their weight need each adapt to the outer fabric.

In clothing as a textile cladding of the human body for protection, as an optical element, as a cladding effect wins as a result of the technical development integrated therein Shielding from radiation of any kind constructive, economical and personal meaning.

Now is basically the human body as an electrical one Look at the ladder while the textiles, especially those made of synthetic fibers or plastics, acting as an insulator and therefore charge electrostatically. This electrostatic Boots can be used in many applications of textiles in clothing, home and technology to different negative effects for humans as carriers of such textiles to lead.

Out In the field of protective clothing, for example, the use of special fabrics with high surface conductivity known as outer fabric.

So will in DE 297 20 988 U1 an arc protection clothing claimed in the form of a work suit, which consists of a textile surface, in the sense of DIN EN 1149 is electrically conductive. In this case, no specific information on the yarn construction and the type and amount of conductive fibers are made in this patent.

Water-jet-strengthened spunbonded fabrics containing a filament component with an additive additive in the form of a permanently acting antistatic agent and in an amount of up to 10 percent by weight, is after DE 199 623 58 C1 for the product pocket lining and after DE 199 623 59 A1 claimed for the product warming clothing lining.

Also becomes woven or other textile surface constructions with a certain surface conductivity one Shielding the human body from low frequency attributed to electrical or electromagnetic radiation. Leave it z. B. dysfunction of pacemakers or others arranged in or on the human body avoid diagnostic equipment, sensors or similar. Also, according to research, the personal Increase well-being when the body is in front of such Low frequency electrical or electromagnetic radiation can be protected.

There textile interlinings as a component in the article of clothing as a surface connection between or on conducting or between senior and non-executive or between non-executive textile surfaces, they are with their own surface conductivity in sufficient size for diverse Applications of the respective garments interesting.

Of the Present invention is therefore the technical task based on developing a special textile interlining which is inexpensive to produce and easy to process, for in terms of basis weight or basis weight and construction type wide range of textile outer fabrics adequate carrying capacity and elasticity having a certain antistatic effect due to sufficient Surface conductivity shows and that in all Functional properties high use and care demands resists.

In Many experiments have found that using a core-sheath yarn with filaments having a conductive core thread as the core in a certain fineness range a textile material in an average basis weight range arises, on the one hand a sufficient load capacity for this application and elasticity and thus on the other hand in a certain arrangement of these conductive core-sheath yarns especially with regard to their distance from adjacent threads of the same Type in warp and weft also a sufficient conductivity occurs in the entire surface of the liner.

The for the antistatic effect of the textile interlining material responsible distances of the electrically conductive Core-sheath yarns in the longitudinal or warp direction and in transverse or weft direction are determined by the number such core-coat yarns within the warp and weft density based on 1 dm or 10 cm or procedurally after how much normal warp and weft threads each have a core-sheath thread is registered in the fabric to be produced.

at textile surfaces with diagonal arrangement of threads analog arrangement approaches apply.

there small distances cause higher and higher ones Distances lower dissipation effects.

Of the Use of core-sheath threads in textile surface constructions for use as a lining material is new. The construction a core-sheath thread and the resulting thread properties are not optimal for softness and pliability in the surface as an important property of interlining. Now it has been determined in many experiments that when using such core-sheath threads with a small share of the total construction of a textile surface and at appropriate intervals of such threads each other in terms of carrying capacity, elasticity and bending stiffness with respect to an application as a liner of this can have quite good values.

According to the invention the task for a textile material with antistatic effect with sufficient buoyancy and Elastic behavior by the features indicated in claim 1 solved. Advantageous embodiments are in the Subclaims included.

Of the Inventive textile insert with antistatic Effect consists of a textile fabric itself orthogonal and / or diagonal crossing threads, such as tissue, Knitted thread knit, Knitted thread knit, Multiaxial knit, Braid, thread layer stitchbonded fabric, wherein in the weft thread and warp yarn additionally a so-called core-sheath yarn with filaments with electrically conductive core material is arranged so that the spacing of such adjacent core-sheath yarns in warp and weft direction at least 4 and at most 100, in particular between 8 and 10 mm and that the mass fraction of the electrically conductive component based on the entire mass of the textile Einlagestoffes 1 to 10, in particular 3 to 5 wt .-% is.

According to an advantageous embodiment of the invention, the core-sheath yarn with filaments with electrically conductive core material has a fineness in the range of 11 to 1100, in particular from 30 to 50 dtex and the basis weight of the insert is suitably in the range of 10 to 500, in particular from 20 to 100 g / m ² .

According to a further advantageous embodiment of the invention, a nonwoven fabric is additionally arranged on or in the textile fabric by mechanical binding or gluing or gluing and this nonwoven fabric expediently has a basis weight of 20 to 80 g / m ² .

According to a further advantageous embodiment of the invention, the conductive yarns filaments with a core of monofilament carbon filament and a sheath of plastic z. B. of polyamide or polyester. In this case, the electrically conductive, in particular formed as a core filament core material is embedded within the sheath of these two-component Garnfilamente and does not extend radially to the shell surface. Conveniently, the core filament is at least bilobal, in particular trilobal or even mehrlobal or two, three, four, five or six lobes, as in DE 690 13 395 T2 disclosed trained. Such yarns do not require grounding to dissipate electrostatic charge. They discharge by air ionization by the so-called corona effect or corona discharge.

According to a further advantageous embodiment of the invention, the interlining material has a surface at least on one surface side or punctiform or linear or patterned coating of a pressure sensitive adhesive or hot melt adhesive. The adhesive points of the punctiform coating expediently have a diameter between 0.15 and 10 mm. Furthermore, it is expedient if the coating has a weight per unit area of 3 to 100 g / m ² , in particular of 6 to 20 g / m ² . In particular, the coating consists of polyester, polyamide, polyurethane or mixtures thereof.

Of the Use of the glue dots apparently promotes the Ableitfähigkeit. The glue seems to be in the air due to humidity existing and / or those prepared by body evaporation make up water molecules and / or OH groups, so that the conductivity is increased.

In accordance with a further advantageous embodiment of the invention, the interlining material measures an electrical shielding factor S measured EN 1149-3 2004 between 0.39 and 0.75 and preferably half-life factors t ₅₀ below 4 s.

According to a further advantageous embodiment of the invention, the half-life factors are t _{50 of} the Einlagestoffes after EN 1149-3 below 0.1 s.

To a further advantageous embodiment of the invention the electrically conductive yarns of the interlining are not grounded.

To a further advantageous embodiment of the invention the fabric comprises cotton, viscose, polyester filament or polyamide yarns or polyester or polyamide fibers or their Blends or kevlar or aramid or glass or the like High performance fibers or synthetic yarns preferably with finenesses between 7 and 1100 dtex, in particular between 33 and 167 dtex on.

Of the Advantage of the invention is the fact that in a per se known textile surface construction by special Material use in the longitudinal and transverse direction or special Surface constructions also conductive in diagonal direction lattice-shaped and optionally connected thread structures are arranged, which in their effect Derive effects in terms have electrostatic charges or other rays and the so positive with the textile insert fabric according to the invention Carrying effects of the clothing articles produced therewith result. It is also essential that by the chosen Material use the antistatic effect even after care demands, such as Washing, chemical cleaning u. a. is fully preserved.

As already explained above, it is in a development of Invention possible, the basic construction of the textile surface made of woven, knitted or knitted fabric with additional incorporated Core-sheath threads directly in the production of the same or in a separate operation a nonwoven fabric add. This nonwoven fabric brings the textile interlining additional functions in terms of softness, fullness or climate behavior.

According to the electrostatic material requirements of protective clothing EN 1149-5 2005 If electrostatically dissipative material is used, it must meet at least one of the following requirements: the half-life t ₅₀ <4 s or the shielding factor S> 0.2 tested according to EN 1149-3 , Test method 2 (Influence charging).

in the The invention will be described below with reference to two exemplary embodiments described.

• Kettfaden: Filamentgarn aus 100% Polyester texturiert, Feinheit 78 dtex f 24 × 1;
• Schussfaden: Filamentgarn aus 100% Polyester texturiert, Feinheit 50 dtex f 36 × 2;
• Kern-Mantel-Garn in der Kette: Feinheit 39 dtex f 6 × 1 mit Filamenten mit einem Kern aus lobalem insbesondere trilobalem Monofil-Carbon-Filament und einer Ummantelung aus Polyester; Kern-Mantel-Garn im Schuss: Feinheit 39 dtex f 6 × 1 mit Filamenten mit einem Kern aus lobalem insbesondere trilobalem Mononil-Carbon-Filament und einer Ummantelung aus Polyester;
• Gewebebindung : X Köper 2/2;
• Kettfadendichte: 230 Kettfäden/dm, wobei für jeden 44. Kettfaden das Kern-Mantel-Garn eingesetzt ist; dies ergibt einen Abstand zwischen zwei benachbarten Kern-Mantel-Garnen in Kettrichtung von 16 mm;
• Schussfadendichte: 155 Schussfäden/dm, wobei für jeden 24. Schussfaden das Kern-Mantel-Garn eingesetzt ist; dies ergibt einen Abstand zwischen zwei benachbarten Kern-Mantel-Garnen in Schussrichtung von 16 mm;
• Flächengewicht, fertig mit punktförmiger Doppelpunktbeschichtung (17 mesh): 70 g/m².

In the first exemplary embodiment, the textile fabric for the textile interlining material according to the invention is a fabric of the following construction:

• Warp: filament yarn 100% polyester textured, fineness 78 dtex f 24 × 1;
• Weft: Filament yarn of 100% polyester textured, fineness 50 dtex f 36 × 2;
• Core-sheath yarn in the warp: 39 dtex f 6 × 1 with filaments having a core of lobal, especially trilobal, monofilament carbon filament and a sheath of polyester; Core-sheath yarn in the weft: 39 dtex f 6 × 1 with filaments having a core of lobal, especially trilobal, mononil-carbon filament and a sheath of polyester;
• Tissue binding: X twill 2/2;
• Warp density: 230 warp threads / dm, with the core-sheath yarn being used for every 44th warp yarn; this gives a distance between two adjacent core-sheath yarns in the warp direction of 16 mm;
• Weft density: 155 wefts / dm, with the core-sheath yarn inserted for every 24th weft; this gives a distance between two adjacent core-sheath yarns in the weft direction of 16 mm;
• Basis weight, finished with punctiform double-point coating (17 mesh): 70 g / m ² .

Due to the distances of the core-sheath yarns with conductive carbon monofilaments in the warp and weft directions of 16 mm each, the interlining fabric thus produced has a shielding factor as the measured value EN 1149-3 from S = 0.36 to. The half-life t ₅₀ after EN 1149-3 is 0.01 s.

• Kettfaden: Filamentgarn aus 100% Polyamid texturiert, Feinheit 11 dtex f 7;
• Schussfaden: Filamentgarn aus 100% Polyamid texturiert, Feinheit 11 dtex f 7;
• Kern-Mantel-Garn in der Kette: Feinheit 39 dtex f 6 × 1 mit Filamenten mit einem Kern aus lobalem insbesondere trilobalem-Monofil-Carbon-Filament und einer Ummantelung aus Polyester;
• Kern-Mantel-Garn im Schuss: Feinheit 39 dtex f 6 × 1 mit Filamenten mit einem Kern aus lobalem insbesondere trilobalem Monofil-Carbon-Filament und einer Ummantelung aus Polyester.

In the second embodiment, the textile fabric for the textile insert fabric according to the invention is a warp knit with weft insertion. The following production parameters apply:

• Warp: filament yarn made of 100% polyamide textured, fineness 11 dtex f 7;
• Weft: Filament yarn of 100% polyamide textured, fineness 11 dtex f 7;
• Core-sheath yarn in the warp: 39 dtex f 6 × 1 with filaments having a core of lobal, especially trilobal monofilament carbon filament, and a sheath of polyester;
• Core-sheath yarn in the weft: Fineness 39 dtex f 6 × 1 with filaments having a core of lobal, especially trilobal, monofilament carbon filament and a sheath of polyester.

This warp knit has 32 gsm (32 threads per inch, 1 inch = 2.54 cm), every 30 warp threads and every 55th row of stitches is covered with the core-sheath yarn. The weft density is 340 weft threads per dm, the mass per unit area of the warp knit with punctiform double point coating is 20 g / m ² .

Due to the distances of the core-sheath yarns with conductive carbon monofilaments in the warp and weft directions of 16 mm each, the interlining fabric thus produced has a shielding factor as the measured value EN 1149-3 from S = 0.32 to. The half-life t ₅₀ is 0.01 s.

In In any case, the intrinsic capacity of the interlining material is basic sufficient for a sufficient derivation of a electrical charge during normal use of the outer garment through Corona discharge, without requiring further discharge is.

It is within the scope of the invention, the inventive textile fabric as a textile fabric everywhere to use where electrostatic charges are dissipated must, for. B. in the protective coating of cable harnesses or seat cover constructions or as bed linen.

in the In particular, yarn weights or Yarn counts of electrically conductive yarns processing the Garnstärken or Garnfeinheiten match, from which the combined fabric is made. To do this z. B. six filaments of electrically conductive yarn wound with a Umwindungsgarn of non-conductive material, eg. B. of polyester.

in principle are the single filaments of electrically conductive yarns because of their Fineness on commonly used weaving and knitting machines not easily processable. Because of this, depending on Use case summarized several filaments and with at least one increasing the strength of the filament bundle Umwindungsgarn of non-conductive material, eg. B. polyester wound.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 29720988 U1 [0010]
• - DE 19962358 C1 [0011]
• - DE 19962359 A1 [0011]
• - DE 69013395 T2 [0024]

Cited non-patent literature

• - DIN EN 1149 [0010]
• - EN 1149-3 2004 [0027]
• - EN 1149-3 [0028]
• - EN 1149-5 2005 [0033]
• - EN 1149-3 [0033]
• - EN 1149-3 [0036]
• - EN 1149-3 [0036]
• - EN 1149-3 [0039]

Claims (11)

Textile fabric, in particular textile interlining fabric from a textile fabric with antistatic effect perpendicular and / or diagonal crossing threads, such as woven fabric, knitted fabric with weft thread, Knitted yarn, multi-axial knitted fabric, braid, thread-stitched sewing fabric, characterized in that in the weft and warp thread system in addition, a core-sheath yarn, in particular at least wrapped in a Umwindungsgarn of electrically non-conductive material Filaments with a lobal electrically conductive core filament is arranged so that the yarns intersect and the distance of such adjacent core-shell yarns in warp and weft direction at least 4 and not more than 100 mm and that the mass fraction the electrically conductive component based on the entire Mass of the textile interlining is 1 to 10%. The fabric according to claim 1, characterized in that the fineness of the core-sheath yarn is in the range of 11 dtex to 1100 dtex and the basis weight of the interlining is preferably in the range of 10 to 500 g / m ² . Fabric according to claim 1 and / or 2, characterized in that on or in this textile fabric additionally a nonwoven fabric by mechanical binding or bonding or gluing is arranged and this nonwoven fabric preferably has a basis weight of 20 to 80 g / m ² . Fabrics after one or more of the preceding claims, characterized in that the conductive yarns as filaments with filaments with a lobal in particular trilobal core of monofilament carbon filament and a sheath made of plastic z. B. of polyamide or polyester. Sheet according to one or more of the preceding claims, characterized in that the interlining material has at least on one surface side a flat or punctiform coating of a pressure-sensitive adhesive or hot melt adhesive, wherein the coating preferably has a basis weight of 3 to 100 g / m ² , in particular of 6 to 20 g / m ² . Fabric according to claim 5, characterized in that the coating of polyester, polyamide, polyurethane or mixtures thereof. Sheet according to claim 5 and / or 6, characterized in that the glue dots of the punctiform Coating have a diameter between 0.15 and 10 mm. Sheet according to one or more of the preceding claims, characterized in that the interlining material has an electrical shielding factor S measured according to EN 1149-3 between 0.39 and 0.75 and half-life factors t ₅₀ below 4 s. Sheet material according to one or more of the preceding claims, characterized in that the half-life factors t _{50 of} the interlining material measured according to EN 1149-3 are below 0.1 s. Fabric according to one or more of previous claims, characterized in that the electrically conductive yarns of the interlining are not grounded. Fabric according to one or more of preceding claims, characterized in that the textile fabric cotton, viscose, polyester filament or polyamide yarns or polyester or polyamide fibers or their Blends or kevlar or aramid or glass or the like High performance fibers or synthetic yarns preferably with finenesses between 7 and 1100 dtex, in particular between 33 and 167 dtex.