Air texturizing or air entangling multifilament-monofilament hybrid yarn

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 strand. 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 ( 2 ) 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 main field of application is the further processing to electromagnetically shielding textile fabrics for electrostatic and/or electromagnetic shields for the protection of human beings and technical devices. Further embodiments relate to the production of abrasion-resistant textile fabrics for the automatic vehicle industry, of resistance heatable textile fabrics for the interior of homes or for passenger compartments of vehicles, and for shielding, anti-electrostatic, heatable and/or garments or textile products equipped with sensors.

1 . Method of air jet texturizing or air entangling of filament yarns ( 2 ,  7 ), whereby at least one monofilament yarn ( 7 ) and at least one multifilament yarn ( 2 ) are delivered from at least one filament delivering device ( 3 ,  8 ) to a pressurized air nozzle ( 5 ) and combined thereat by air jet texturizing or air entangling to a multicomponent yarn ( 9 ), whereas in that at least one monofilament yarn ( 7 ) of the at least one monofilament yarn ( 7 ) contains metal and is electrically conductive and is air jet texturated or air entangled with the at least one multifilament yarn ( 2 ), and whereas the monofilament yarn ( 7 ) includes metal strand as far as it remains unopened during the air treatment and accordingly behaves the same on a singlefilament-metal thread, and whereas the monofilament yarn ( 7 ) is delivered to the pressurized air nozzle ( 5 ) with a set overfeed.  
     
     
         2 . Method according to  claim 1 , characterized in that 
 a) the first monofilament yarn ( 7 ) is a metal thread ( 7 ),    b) specifically the metal thread ( 7 ) is a metal strand ( 7 ) and    c) specifically the metal thread ( 7 ) includes a insulating coating preferably of a natural and/or synthetic polymeric and/or an inorganic material.    
     
     
         3 . Method according to one of the claims  1 - 2 , characterized in that 
 a) the first monofilament yarn ( 7 ) is a metal thread in form of a metal coated monofilament yarn ( 7 ),    b) specifically the metal coated monofilament yarn ( 7 ) is a metal coated monofilament manmade fibre of a natural and/or synthetic polymeric and/or a metal coated monofilament yarn ( 7 ) of an inorganic material.    
     
     
         4 . Method according to one of the claims  1 - 3 , characterized in that 
 a) the first monofilament yarn ( 7 ) contains at least one metal of the group iron, steel, aluminum, titanium, copper, silver, gold or an alloy of these and other metals and    b) specifically the first monofilament yarn ( 7 ) is a metal thread ( 7 ) and/or comprises a metal coating, which consist(s) of iron, steel, aluminium, titanium, copper, silver-coated copper, silver, gold or an alloy.    
     
     
         5 . Method according to one of the claims  1 - 4 , characterized in that 
 a) the first monofilament yarn ( 7 ) or the first monofilament yarns ( 7 ) are (is) as stationary thread and/or effect thread air jet texturized or air entangled with the multifilament yarn ( 2 ) and/or    b) at least two first monofilament yarns ( 7 ), specifically at least two metal threads ( 7 ) of differing materials and/or with differing cross-sections and/or with differing pre-treatments are air jet texturized or air entangled together with the multifilament yarn ( 2 ).    
     
     
         6 . Method according to one of the claims  1 - 5 , characterized in that 
 a) two metal threads ( 7 ), specifically two metal coatings with differing colours are selected,    b) specifically a metal thread ( 7 ) or a metal coating of silver and a metal thread ( 7 ) or a metal coating of gold are selected, and    c) specifically the two metal threads ( 7 ) or two metal coated monofilament yarns ( 7 ) are delivered from the delivering device with an equal overfeed.    
     
     
         7 . Method according to one of the claims  1 - 6 , characterized in that 
 a) a diameter of the first monofilament yarn ( 7 ) is selected in a range of 0.01 mm-0.15 mm, preferably 0.01 mm-0.1 mm, specifically preferably 0.03 mm-0.07 mm and/or    b) a weight of the first monofilament yarn ( 7 ) of less than 600 dtex is selected.    
     
     
         8 . Method according to one of the claims  1 - 7 , characterized in that 
 a) exactly one monofilament yarn ( 7 ) is air jet texturized or air entangled with the at least one multifilament yarn ( 2 ) and/or    c) the multicomponent yarn ( 9 ) is produced with a weight in the range of 50 tdex-3000 dtex.    
     
     
         9 . Method according to one of the claims  1 - 8 , characterized in that 
 a) an individual overfeed is set for the at least one monofilament yarn ( 7 ) and/or for the at least one multifilament yarn ( 2 ) at a corresponding filament delivering device ( 3 ,  8 ) and    b) specifically an individual overfeed is set for each first monofilament yarn ( 7 ) and/or for each multifilament yarn ( 2 ) at a corresponding filament delivering device ( 3 ,  8 ).    
     
     
         10 . Method according to one of the claims  1 - 9 , characterized in that 
 a) as a second monofilament yarn ( 7 ) a monofilament man-made fiber of natural and/or synthetic polymerics and/or of inorganic materials is air jet texturized or air entangled and/or    b) as the at least one multifilament yarn ( 2 ) a multifilament man-made fiber of natural and/or synthetic polymerics is air blast texturized or air entangled.    
     
     
         11 . Method according to one of the claims  1 - 10 , characterized in that 
 a) a monofilament synthetic fibre on a polyamide, polyester or polypropylene basis is air jet texturized or air entangled as second monofilament yarn ( 7 ) and/or    b) a monofilament natural main-made fibre on a cellulose or cellulose acetate basis is air jet texturized or air entangled as second monofilament yarn ( 7 ).    
     
     
         12 . Method according to one of the claims  1 - 11 , characterized in that 
 a) multifilament yarn ( 2 ) on a polyamide, polyester and/or polypropylene base is air jet texturized or air entangled as the at least one multifilament yarn ( 2 ) and/or    b) a multifilament yarn ( 2 ) with texturized, specifically false-twist texturized components is air jet texturized or air entangled as the at least one multifilament yarn ( 2 ).    
     
     
         13 . Method according to one of the claims  1 - 12 , characterized in that at least one multifilament yarn ( 2 ) is partly stretched or completely stretched in a stretching apparatus ( 12 ) prior to the air jet texturizing or air entangling and specifically is thermically set in a following heating apparatus ( 13 ).  
     
     
         14 . Method according to one of the claims  1 - 13 , characterized in that the first monofilament yarn ( 7 ) and/or the multifilament yarn ( 2 ) is (are) method in a wetting device ( 14   a ,  14   b ) prior to the air jet texturizing or air entangling by a liquid, specifically water.  
     
     
         15 . Multicomponent yarn ( 9 ), characterized in that it is produced in accordance with one of the preceding claims.  
     
     
         16 . Application of a multicomponent yarn ( 9 ), characterized in that 
 a) at least one multicomponent yarn ( 9 ) is produced in accordance with one of the claims  1 - 14  and    b) an electrically conductive textile fabric is produced by a use of the at least one multicomponent yarn ( 9 ).    
     
     
         17 . Application of a multifilament yarn ( 9 ) according to  claim 16 , characterized in that 
 a) the textile fabric is a planar textile fabric which is produced by a textile planar production process, specifically a weaving process, a knitting process or a combination of these processes,    b) specifically the textile fabric is a three-dimensional textile fabric which is produced of several layers of planar textile fabrics, of which at least one textile fabric is electrically conductive, and    c) specifically that several differing multicomponent yarns ( 9 ) are used for the production of the textile fabric.    
     
     
         18 . Application of a multicomponent yarn ( 9 ) according to  claim 17 , characterized in that 
 a) the multicomponent yarn ( 9 ) is worked into the planar textile fabric along one axis, specifically as weft, or    b) the multicomponent yarn ( 9 ) is worked into the planar textile fabric along two axes, specifically as warp and weft.    
     
     
         19 . Application of a multicomponent yarn ( 9 ) according to one of the claims  17 - 18 , characterized in that 
 a) in order to produce a textile material which is electrically conductive exactly along one axis, adjacent threads of the multicomponent yarn ( 9 ) are arranged in a not contacting distance between each other and/or a metal containing monovilament yarn ( 7 ) with an insulating coating is used as the multicomponent yarn ( 9 ), or    b) in order to produce a planar electrically conductive textile fabric threads of the multicomponent yarn ( 9 ) are arranged sufficiently close to each other for a desired electromagnetic attenuation, and specifically that the multicomponent yarn ( 9 ) comprises metal containing monofilament yarn ( 7 ) with an electrically conductive surface, or    c) in order to produce a three-dimensional textile fabric which is electrically conductive in three axes, threads of the multicomponent yarn ( 9 ) are located at a sufficiently close distance from each other inside and between electrically conductive layers of the textile fabric and specifically the multicomponent yarn ( 9 ) comprises metal containing monofilament yarn ( 7 ) with an electrically conductive surface.    
     
     
         20 . Application of a multicomponent yarn ( 9 ) according to one of the claims  16 - 19 , characterized in that 
 a) the textile fabric is produced with an electrically insulating surface in that a metal containing monofilament yarn ( 7 ) with a insulating coating is used for the multicomponent yarn ( 9 ) and/or a layer of the textile fabric located at the outside is made electrically insulating, or    b) the textile fabric is produced with an electrically conductive surface in that a metal containing monofilament yarn ( 7 ) with an electrically conductive surface is used for the multicomponent yarn ( 9 ).    
     
     
         21 . Application of a multicomponent yarn ( 9 ) according to one of the claims  16 - 20 , characterized in that the electrically conductive textile fabric is designed for the protection of persons and/or technical devices and apparatuses against an electrostatic charging and/or electromagnetic radiation.  
     
     
         22 . Application of a multicomponent yarn ( 9 ) according to one of the claims  16 - 21 , characterized in that following is produced from the textile material 
 a) shielding mats or shielding claddings, specifically in the computer, motor vehicle, aircract, space travel, communication, medicinal or security field an/or    b) motor vehicle cover fabrics or furniture fabrics and/or    c) floor coverings, wall coverings or ceiling coverings for rooms or passenger compartments and/or    d) shields for building front walls, wall structures and/or roofs, specifically roof insulations, and/or    c) protective garments.    
     
     
         23 . Application of a multicomponent yarn ( 9 ) according to one of the claims  16 - 22 , characterized in that 
 a) the electrically conductive textile fabric is designed as an electrical resistance heater,    b) specifically electrically heatable seat fabrics for motor vehicles or furniture are produced from the textile fabric,    c) specifically electrically heatable floor coverings, wall coverings and/or ceiling coverings or electrically heatable garments are produced.    
     
     
         24 . Application of a multicomponent yarn ( 9 ) according to one of the claims  16 - 22 , characterized in that 
 a) the electrically conductive textile fabric is designed as supporting material and/or structural portion of intelligent systems, specifically of a sensor, emitter, receiver and/or an information processing module,    b) specifically at least one metal containing monofilament yarn ( 7 ) of the multicomponent yarn ( 9 ) of the electrically conductive textile fabric is used as electrical conductor for the supply of electrical power, for the transmittal of information, as antenna and/or as sensor, for instance as resistance-temperature sensor.    
     
     
         25 . Electrically conductive textile fabric, characterized in that is includes at least one multicomponent yarn ( 9 ) according to  claim 15 .  
     
     
         26 . Electrically conductive textile fabric according to  claim 25 , characterized in that the textile fabric is selected from the textile fabrics described in claims  17 - 24 .