EP1108806A1 - Airjet texturing or intermingling of multifilament-monofilament hybrid yarn - Google Patents

Abstract

The invention relates to a method for air texturizing or air entangling a metal or metal-containing monofilament yarn (7) with a multifilament yarn (2) to give a novel multifilament-metal monofilament hybrid yarn (9). The monofilament yarn (7) used may, for example, be a full-metal thread, a metal-coated chemical fiber or a metal wire heald. It is supplied to the air texturizing nozzle (5) as the stationary thread/and or the fancy yarn together with the multifilament yarn (2) and is texturized according to the invention, however, a plurality of differently textured monofilament yarns (7) can also be used. The multifilament yarn (2) or additional monofilament yarns (7) may consist of natural or synthetic continuous fibers. According to the invention, an adequately textile, twist-free, easily processible, very long-wearing and at the same time electroconductive hybrid yarn (9) is obtained. The inventive hybrid yarn is mainly used to be manufactured to give electromagnetically shielded textile fabrics for electrostatic and/or electromagnetic shields for the protection of human beings and technical devices. The inventive material is also used in the production of abrasion-resistant textile fabrics for the automotive industry, of resistance-heatable textile fabrics for the interior of homes or for passenger compartments of vehicles, and of shielding, anti-electrostatic, heatable and/or sensorized garments or textile products.

Description

The invention relates to a method for air texturing or air entanglement of hybrid filament yarn, an article of the process and use of the product according to the preamble of the independent claims.

Such air treatment techniques are according to EP 0 696 331 B1 for the production of multi-component yarns Endless multifilament yarns or so-called multifilament yarns known. In the air swirling technology is with a multifilament yarn is a short fiber staple yarn or swirls a second multi-filament yarn. With the air bubble texturing several multifilament yarns are joined together connected to a multi-component loop yarn or it staple fibers are mixed into a multifilament yarn and a Get mixed yarn. Air bubble texturing can also a single smooth multifilament yarn is turned into loop yarn become. In all cases, the air techniques only on multifilament yarns made of synthetic and natural Chemical fiber applied. In contrast, multifilament yarns exist to monofilament yarns from a plurality of individual continuous fibers or filaments. So far, have been air-treated Multi-component yarns made exclusively from multifilament yarns built up because you assume that a reliable Connection of components, d. H. of multifilament yarns, only is achievable when each component is through the airflow is opened and the individual filaments of all components intertwine or devour each other.

The invention has for its object a simple manufacturing process for improved multi-component yarns, an improved multi-component yarn and a new use of the multi-component yarn. This task is according to the invention by the features of the independent Claims resolved.

According to the invention in an air blast texturing or Air entangling process at least one multifilament yarn with at least one monofilament yarn to form a multifilament monofilament Hybrid yarn linked together. So it will A multifilament yarn for the first time in an air treatment device swirled or blown with a monofilament yarn. The resulting hybrid yarn is characterized by improved Properties in terms of weight and tear resistance as well as the ability to achieve additional functionality out.

In one embodiment, the monofilament yarn is used as Upright thread and / or used as an effect thread. The vote between monofilament and fancy thread can be desired physical properties or by the desired appearance can be influenced. For example the monofilament upright thread has a shorter length and can be chosen thicker, which makes the mechanical Strength increased and in the case of a metal monofilament yarn the electrical resistance can be reduced. At the monofilament effect thread is the achievable textile or optical effect in the foreground.

In another embodiment, two or more monofilament yarns with different qualities air-textured or at least one multifilament yarn air swirled. The quality of the material, Cross-sectional shape, thickness, pretreatment, etc. of the monofilament yarn affect. This way you can easily Way the properties of different monofilament yarns with each other combine in a hybrid yarn.

In another embodiment, exactly one Monofilament yarn with one or possibly a few multifilament yarn (s) air textured or air swirled. Also with such a mix with minimal or less Number of components will still be an excellent connection of the mono and multifilament components. Furthermore is characterized by such a hybrid yarn low weight, comparatively high tear resistance and durability and a beneficial texture out.

In a preferred embodiment, the monofilament yarn a metal thread or possibly a metal strand, for example made of steel, aluminum, copper, silver or gold. Because the metallic monofilament yarn by air treatment is not cut, can be from the hybrid yarn lightweight, electrically conductive textiles for technical purposes, room cladding, body clothing u. to protect against electrostatic charge and electromagnetic radiation are produced. On further field of application for air textured or air-entangled metal monofilament multifilament is hybrid yarns the production of electrically heatable cover fabrics, e.g. B. for automobile seats or furniture.

In other embodiments, the multifilament yarn before blowing or texturing in one The drafting system is stretched and especially in one subsequent heater thermally fixed. By this additional work becomes the strength of the hybrid yarn further improved. In addition, the Texturing by wetting the multifilament and / or monofilament yarn advantageous with water or other liquids to be influenced.

Further embodiments, advantages and applications of the invention result from the dependent claims as well as from the following description based on the figures.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1

shows an example of a first according to the invention Air texturing process for making a Multifil monofilament hybrid yarn in stand thread effect thread Business;

Fig. 2

shows an air texturing method according to FIG. 1 with additional processing steps for the multifilament yarn.

In the figures, the same parts have the same reference numerals Mistake.

WAYS OF CARRYING OUT THE INVENTION

In the context of this invention denotes multifilament monofilament Hybrid yarn, or hybrid yarn for short, a multi-component yarn, which consists of one or more multifilament component (s) and one or more monofilament component (s).

1 is a method for air bubble texturing or air interlacing of filament yarns 2, 7, with at least one multifilament yarn. 2 and at least one second filament yarn 7 from Aufsteckgat 1, 6 with normally six slots are removed, via at least one filament feed unit 3, 8 to one Compressed air nozzle 5 are delivered and there by air blast texturing or air swirling into a multi-component yarn 9 are connected to each other. The multifilament yarn 2 and / or the second filament yarn 7 are the compressed air nozzle 5 supplied with tradition to the texturizing To form loops in the multi-component yarn 9. Typically 3 and / or 8 a tradition from a few% up to 300% set relative to the winding device 11. Further 4 exemplify deflection rollers, 10 a stabilizing roller and 16 schematically shows a drive and control device for the entire air treatment plant.

According to the invention, the second filament yarn 7 is now a single-filament yarn or monofilament yarn 7 is used. The monofilament yarn 7 is characterized in that it not fanned out into individual filaments by the air treatment can be. It is all the more surprising that anyway, just by opening one multifilament yarn 2 or possibly the few multifilament yarns 2 in the air flow, a good connection with the monofilament yarn 7 to a hybrid yarn 9 is achieved. The hybrid yarn 9 has the desired texture and connects to beneficial Wise low weight with great durability. The hybrid yarn 9 is particularly suitable for car upholstery fabrics, Upholstery fabrics, decorative fabrics and those specified below technical fabrics suitable. In particular can the hybrid yarn 9 through the monofilament yarn 7 also new Properties are conferred. The following are some Exemplary embodiments shown.

The at least one monofilament yarn 7 can be used as a stand thread and / or as an effect thread with the multifilament yarn 2 air-blown textured or be swirled in air. 1 are the at least one monofilament yarn 7 as upright thread and the at least one multifilament yarn 2 as the fancy thread Compressed air nozzle 5 supplied; the reverse assignment of monofilament yarn 7 - effect thread and multifilament thread 2 - stand thread is also possible. Usually the at least one Standard thread, here the monofilament yarn 7, from a wetting device 14a wetted with water.

A particularly advantageous combination of properties in hybrid yarn 9 is achieved in that at least two Monofilament yarns 7 made of different materials, with different ones Cross-section and / or with different Pretreatment together with the at least one multifilament yarn 2 can be air-textured or air-swirled. In Fig. 1, for example, two from the delivery plant 8 can be parallel supplied monofilament upright threads 7 with at least one Multi-filament effect thread 2 from the supplier 3 air-textured or be swirled in air. Likewise, from the supplier 8 a monofilament effect thread 7 and from the delivery unit 3 a stand thread, which in turn is a combination of one Multifilament yarn 2 and a monofilament yarn 7 is, air blast textured or be swirled in air. For special textiles or optical effects can also come from the delivery unit 8 monofilament effect threads 7 with different colors Silver and gold or in other combinations delivered in parallel become. In addition, several multifilament yarns can also be used 2 with different characteristics from the delivery plant 3 and possibly 8 delivered and with the monofilament yarn 7 can be air-textured or air-swirled.

Preferably for a monofilament yarn 7 and / or for a Multifilament yarn 2, in particular for each monofilament yarn 7 and / or for each multifilament yarn 2, at the associated filament supply plant 3, 8 set an individual tradition, about air bubble texturing or air swirling with regard to the desired properties of the hybrid yarn 9 to optimize. From the same delivery plant 3, 8 in parallel supplied filament yarns 2, 7 receive the same Lore.

In another embodiment, exactly one Monofilament yarn 7 and / or exactly one multifilament yarn 2 with each other air textured or air swirled. By suitable Choice of monofilament yarn 7 and by air treatment can the multifilament 2 the desired textile, mechanical or other properties can be added. By using a single multifilament yarn 2 and one single monofilament yarn 7 can also weight the resulting Hybrid yarn 9 can be minimized.

Advantageously, the air treatment is one Air blast texturing, the compressed air nozzle 5 being an air texturing nozzle 5 is. Details of air treatment procedures and especially the air texture technology for example in EP 0 696 331 B1.

As a monofilament 7 z. B. a monofilament chemical fiber from natural or synthetic polymers or from inorganic Fabrics are used. As multifilament yarn 2 should z. B. a multifilament synthetic fiber from natural and / or synthetic polymers can be used. Of these known materials have so far only been used the multifilament yarns made of synthetic and natural chemical fibers used for air treatment techniques. By the inventive use of the above materials can be used for the multifil monofilament hybrid yarn 9 wide range of applications.

In particular, a monofilament thread 7 is a metal thread 7 or a metal strand 7, d. H. a thin multi-core metal wire 7, provided. It has been demonstrated in experiments that the air bubble texturing also with a metallic Monofilament 7 is feasible. Suitable monofilament yarns 7 consist for example of steel, aluminum, Copper, silver-coated copper, silver, or gold Alloys of these or other metals. The metal thread diameter is advantageously in a range of approx. 0.01 mm - 0.1 mm selected. He can also for a better one electrical conductivity can be chosen larger.

Such a multifilament metal thread hybrid yarn 9 has extraordinary Advantages and enables completely new applications. On the one hand, the hybrid yarn 9 has a full value Textile structure like that of a textured Textile fiber is expected, such as. B. larger volume and bulk, increased mechanical strength, improved moisture absorption and others more. On the other hand, the hybrid yarn 9 can be very simple electrically conductive textiles for electrostatic and / or electromagnetic shields for protection of people and technical devices and facilities or electrically resistance-heated textiles become.

A monofilament synthetic fiber can also be used as the monofilament yarn 7 based on polyamide, polyester or polypropylene or a monofilament natural chemical fiber on cellulose or Cellulose acetate base can be used.

The multifilament yarn 2 contains z. B. filaments on polyamide, Polyester and / or polypropylene base or false wire textured Components.

Fig. 2 shows an embodiment with additional Textile processing steps. So from a first Gate 1 the multifilament yarn 2 before the air blowing texturing or air swirl in a drawing unit 12 partially drawn or totally stretched and especially in one subsequent heater 13 thermally fixed. In addition can e.g. B. a totally drawn multifilament yarn 2 fed from a second gate 15 to the compressed air nozzle 5 and air-textured or air-entangled with the monofilament yarn 7 become. It is also before the bubble texturing or air swirling a wetting device 14a, 14b for wetting the multifilament yarn 2 and / or the Monofilament yarn 7 with a liquid, in particular water, specified. By stretching, fixing and wetting are the structure and mechanical properties of a Chemical fiber hybrid yarn 9 targeted in a manner known per se influenceable. In the present invention also shown that a conventional wetting device 14a, 14b also successfully for wetting metallic Monofilament yarn 7 can be used.

In Fig. 2, the functions of the multifilament yarn 2 and Monofilament yarn 7 as stand-up and effect threads can be exchanged as before, d. H. from the gate 1 and / or 15 can effect threads and supplied by the gate 6 upright threads or vice versa become. In addition, a gate 15 can also Monofilament yarn 7 parallel to multifilament yarn 2 from creel 1 delivered to the air pressure nozzle 5 via the delivery mechanism 3 become. In this case, the delivery plant 8 at least one multifilament yarn 2 and / or monofilament yarn 7 individual tradition. Other variants for parallel or individual, d. H. independent Deliveries of multifilament yarns 2 and / or monofilament yarns 7 and for additional processing steps such as Drawings of multifilament yarns 2 are immediate by adding the corresponding process steps or processing units can be realized.

Another object of the invention is that described above Multifil monofilament hybrid yarn 9 itself, d. H. a multi-component yarn 9, which according to one of the above described air swirling and / or air blowing texturing is made.

The invention also relates to the use of the inventive Multifil metal thread or multifil metal strands Hybrid yarn 9 for the production of electrically conductive Textile fabrics.

One embodiment relates to fabrics for protection of people and / or technical devices and equipment against electrostatic charge and / or electromagnetic Radiation. It has an antistatic effect Use silver or copper simply by unloading achieved in the ambient air. Alternatively, the textile fabric also be grounded. Such textile fabrics are also as a Faraday cage against higher-frequency radiation applicable, e.g. B. by earth. For example from the textile fabrics, shielding mats or shielding cladding for electronic devices or people, especially in computer, automotive, aircraft, space travel, Communication or security area, e.g. B. for Improve wiretapping security, military or police Plants, or for car upholstery fabrics, upholstery fabrics, Carpets, office partitions u. Ä. or for protective clothing getting produced. Of particular interest the use for the production of floor coverings, wall coverings and / or ceiling panels for shielding of rooms or passenger cells of vehicles of all kinds, especially in airplanes or in space travel.

In addition, the textile can be used as an electrical heating resistor be designed by electrical connections be created for a suitable power source. Preferably are electrically heated from such textiles Seat fabrics made for automobiles or furniture. The Resistance heatability and shielding functions can also be in a single electrically conductive fabric can be combined with each other.

Overall, the air treatment according to the invention enables the production of a twist-free hybrid yarn 9 also with a metal thread 7 or a metal strand 7, wherein the hybrid yarn 7 can be processed like a normal textile yarn and in particular is weavable. The problems of difficult to twist or weave metal threads in conventional spinning processes by the inventive Air turbulence or air bubble texturing solved.

Claims (16)

Air bubble texturing or swirling processes of filament yarns (2, 7), with at least a multifilament yarn (2) and at least one second filament yarn (7) from at least one filament supply plant (3, 8) are supplied to a compressed air nozzle (5) and there by air bubble texturing or air turbulence connected to each other to form a multi-component yarn (9) are characterized in that as that second filament yarn (7) uses a monofilament yarn (7) becomes. A method according to claim 1, characterized in that a) the monofilament yarn (7) as a stand thread and / or as an effect thread with the multifilament yarn (2) is air-blown textured or air-entangled and / or b) at least two monofilament yarns (7) made of different material and / or with a different cross-section and / or with different pretreatment are air-blown textured or air-entangled together with the multifilament yarn (2). A method according to claim 1, characterized in that a) exactly one monofilament yarn (7) with the multifilament yarn (2) is air-blasted or air-entangled and / or b) exactly one multifilament yarn (2) with which monofilament yarn (7) is air-blown textured or air-entangled. Method according to one of claims 1-3, characterized in that a) for a monofilament yarn (7) and / or a multifilament yarn (2) at an associated filament delivery plant (3, 8), an individual delivery is set and b) in particular that an individual delivery is set for each monofilament yarn (7) and / or each multifilament yarn (2) at the associated filament delivery plant (3, 8). Method according to one of claims 1-4, characterized in that a) as a monofilament yarn (7) a monofilament synthetic fiber made of natural or synthetic polymers or of inorganic substances is air-blown textured or air-entangled and b) as a multifilament yarn (2), a multifilament chemical fiber made of natural and / or synthetic polymers is air-blast textured or air-entangled. Method according to one of claims 1-5, characterized in that a) as a monofilament yarn (7) a metal thread (7) is air-blown textured or air-entangled, b) in particular that the metal thread (7) consists of steel, aluminum, copper, silver-coated copper, silver, gold or an alloy and c) in particular that a metal strand (7) is air-blasted or air-swirled. Method according to one of claims 1-6, characterized in that as a monofilament yarn (7) a monofilament Synthetic fiber based on polyamide, polyester or polypropylene air textured or air swirled becomes. Method according to one of claims 1-7, characterized in that as a monofilament yarn (7) a monofilament natural chemical fiber based on cellulose or cellulose acetate air textured or air swirled becomes. Method according to one of claims 1-8, characterized in that a) a multifilament yarn (2) based on polyamide, polyester and / or polypropylene is air-blast textured or air-entangled and / or b) a multifilament yarn (2) with false-wire textured components is air-blasted or air-entangled. Method according to one of claims 1-9, characterized in that the multifilament yarn (2) before the air blast texturing or air swirl in a drafting unit (12) partially or totally stretched and in particular in a subsequent heating device (13) is thermally fixed. Method according to one of claims 1-10, characterized in that that the multifilament yarn (2) and / or that Monofilament yarn (7) before the air blast texturing or Air turbulence in a wetting device (14a, 14b) wetted with a liquid, in particular water will or will. Multi-component yarn (9), characterized in that it manufactured according to one of the preceding claims is. Use of a multi-component yarn (9), characterized in that a) the multi-component yarn (9) according to claim 6 and one of claims 1-5, 7-11 is produced and b) electrically conductive textile materials are produced from the multi-component yarn (9). Use of a multi-component yarn (9) according to claim 13, characterized in that the electrical conductive textiles to protect people and / or technical devices and facilities against electrostatic charge and / or electromagnetic Radiation can be designed. Use of a multi-component yarn (9) according to any one of claims 13-14, characterized in that a) shielding mats or shielding linings, in particular in the computer, automobile, aircraft, space travel, communication or security sectors, are produced from the textile materials and / or b) car upholstery fabrics or upholstery fabrics are produced from the textile fabrics and / or c) floor coverings, wall coverings and / or ceiling coverings for rooms or passenger cells are produced from the textile materials and / or d) protective clothing is made from the textile materials. Use of a multi-component yarn (9) after a of claims 13-15, characterized in that the electrically conductive textiles as electrical Heating resistor are designed and in particular that electrically heated from the textiles Seat fabrics for automobiles or furniture can be made.

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