ANTISTATIC CARPET SYSTEM

Behavior by additive of certain substances is in such a manner affected that the antistatic self-scolded improve in the measure, as the carpet system wears itself out. It is well-known that it comes on carpets to remarkable electrostatic loadings, if one commits the carpet. Such loadings will transfer to the person committing the carpet system. With following grounding unloading causes an electrical impact, for that much urmngenehm is although always wiederAnsb: EN ugen were made to improve carpet yarn systems failed these attempts, since with increasing wear also the antistaüschen characteristics disappeared more and more. A such system is for example in the USA patent specification No. 2, 302.003 is described, in accordance with the one flexible coating material, for example with soot filled a rubber, on the lower surface of a carpet stuck. A multiplicity of electrical conductors, for example Baumwollcord, and an electrically leading rubber SAM ensetzung are in contact with the coating and transfer so the contact into the surface of the carpet. Another recent attempt to solve the problem of the static loading from carpets to is in the USA Patentschriß No. 3.288.175 be described, that in accordance with MetaHfasern into the carpet be trained. Thus the carpet possesses metallic electrical conductivity, and during simultaneous maintenance of the mktionalen and aesthetic characteristics such a carpet will receive, which the nermale static on] adung for disappearance brings. Further such attempt to prevent the static loading from carpets to is described in the USA Patentschriß No. 3, 510.386. Since all did not lead these attempts so far to satisfying results, it is task of this invention to create a carpet system with improved antistatic characteristics which are to remain upright self-work fiir the entire life span of the carpet. The loading in carpets manufactured in accordance with the invention is to lie below the human Empfindungsschwelle. Beyond that are to improve the antistatic characteristics of the carpets according to invention as a function of the Geßrauchsdauer. The invention accordingly concerns a antistatic carpet system, in an educated manner from antistatic tex ller pole commodity on basis of polyamide fibers, in particular Polycapronamidund/or Polyhexamethylenadipamidfasern, and at least one basic fabric, which carpet system with increasing life exhibits itself improving antistatisohe characteristics, which is characterized by that the Polyamidf incorporates sern first of all in the fiber substance i to 12 Gew. - Tons predominantly branched out, in particular chain-extended, polymere l of a eaktionsproduktes contain, that from a connection of the general formula CH CH I I (OCH2 OH2) y (degrees CH2) C \/(OH2CHO) A (C C O) xH N--R--N ° " 1/I H (degrees C) z (O¢ CH2) (eH2 CHO) b (C eH20) wH (I) in a, the b, C, D, w, x, y and z a whole number mean in each case, whereby the sum of A, b, C and D between 8 and 850 and the sum of w, x, y and z between 8 and 1000 amount to in each case in each case, and R a bivalent hydrocarbon remainder with 1 to 13 C-flavours was trained, with a connection from the group is, the Diepoxyde and such connections covers, which bivalent, chain-extending remainders that general formula O O O H H O H IL IL I I H - C-R' --Coder --C-N-R' - NUMERICAL CONTROL, (]: RA) (nb) where R' is a bivalent, aromatic, heterocyelischer, cyclo-aliphatic or aliphatic hydrocarbon remainder with up to 20 Kohlensteffatomen or represents evenly specified a remainder formed by combination of the hydrocarbon remainders, supply a first with, and secondly the pole commodity with basic fabric, which consists if necessary of a synthetic material or of Jure, by means of a antistatic, in particular the evenly besehriebene reaction product of connections of of the general formula (I) connected with Diepoxydverbindungen and/or connections with remainders of of the general formulas (IIa) and/or (} Vb) containing Latexbinders, and if necessary the first basic fabric with a second basic fabric, which consists in particular of a polypropylene spin fleece and a woven Polypropylemnaterial or of Jure, is by means of of the antistatic Latexbinders is connected, as examples of the remainders of R' in the remainders (IIa) and/or (IIb) the following difunktionellen remainders - \ \/- are mentioned, \ __/I '1 \ _=/or “- CH2) n with n = 3, 4, 5, 8. The carpet system according to invention is characterised by it that it does not only maintain its antistatic self-scolded during the Gebrauehes and with rising life span, but even still improved. The Latexbinder is made preferentially electrically leading thereby that up to 10 thread - % of the Reak of ion product of connections of of the general formula (I) and defined the Diepoxydverbindungen and/or connections with remainders of of the general formulas (ha) and/or (IIb, the above) or up to 10 Gew, - % PL oxide are added to it. According to invention the antistatic fibers used in the carpet system can contain usual additives, without these have an unfavorable effect on the antistatic carpet system. That means that the fibers are compatible with other desirable or necessary additives, as for example Färbelälfsmittel, coloring materials, Stabilisateren, Antioxydantien and matt finish means. Over racing marriage the way is not so only created a carpet system with loadings, which lie below the human Empfindungssehwelle, improved regarding the antistatisehen characteristics, but also an improvement of the antistatisehen characteristics with increasing life of the carpets concerned causes. The human Reizsehwelle mentioned above lies approximately between 2500 and 4000 V. (S. Modern Textiles, April 1971, “A shock Free Carpet system RK 10% relative Hunüdit! '. ) Another measuring procedure for the statement of the static loading of textiles becomes in the “Technical Bullerig No. 2 to 015, 1,3. 1970, which Brunswick corporation, Technical Products described you, 69 W. Washington Street, Chicago, Illionois 60602. This publication refers to an accessible test for the evaluation of the electrical loading. The test methods mentioned to overlap see partially, while they complement each other however in the best way on the other hand. The test methods mentioned indicate that an electrostatic loading of a carpet released a noticeable shock above approximately 3 kV with most subjects. The first basic fabric exists, how already it mentions favourably from a synthetic Materia! or from Jure. It is preferred, as already mentions likewise above, further, since a second basic fabric, which consists of a polypropylene spin fleece and a woven polypropylene material or of jute, is connected with the first basic fabric by means of the antistatic Latexbinders. When fibers come for the antistatic carpet system according to invention, like already, in particular Polycapronamid and/or Polyhexamethylenadipamid fibers in consideration mention. As Latex binders favourable-proves a styrene/a butadiene Gummilatexbinder used. It - likewise already mentions how - a antistatisehes carpet system desired, which is excellent by since its antistatic effectiveness with increasing life improves. The following of example serve for the closer explanation of the invention article. Example i: To the Hers ellung a carpet proceeded from a Polyeapronamid, which a humidity content of 0, 05 to 0.10 thread - TON possesses. The Antei! on with hot water extractable components amounts to 1 to 2 Gew. - TONS. The polymer contains for instance O, of 2 Gew. - % Tihandioxyd and 6 Gew. - Tons of a anfishatischen additive. The antistatically working additive is a Polyäther, which was manufactured by reaction of Dime hylterephthalat with “Tetronic 1504”. “Tetronic 150 ₜ ' is a commercial Diam notetrolverbindung according to the general formula (I), in which the middle molecular weight amounts to the Polyoxypropylenkeßen 1500 and which content of Polyoxyä'thyleneinheiten 40 thread - ton of the Tetrolverbindung constitutes. Such Tetrolverbindungen is in the USA patent specification No. 2.979, 528 besehrieben. The aforementioned antistatic Materia! wizxt together with the Polycapronamid into a screw-type extruding machine, to out] aS a temperature of 260°C außveist, over a hopper fed. The polymer is promoted with a pressure by 130 RKs by a sand filter and a 70-Lochspirmdüse. Each hole has a depth of 2,4 cm and a diameter of 0,068 cm. Those freshly abgesponnenen Fi] amente fall into a Spinnsehaeht, in which by supplied air a temperature of 21°C and a relative humidity will keep upright of 65%. After passing the spin pit the yarn will provide with a lubricant and with a speed of 565 m/min rolled up. In such a way received yarn possesses a titer of 3150 that. The yarn is then taken off over a stretching pin with a diameter of 1, 58 cm and a departure speed from 565 m/min. The departure speed is 3, 01 times more highly than the Zufübrgeschwlndigkeit, so that a yarn with a titer will receive from 1050. Each of the 70 filaments possesses a titer of 16 that. During hiding the yarn on 175°C is heated up. The yarn is introduced afterwards to a Shauchkräuselkammer. In each case Z ends of the 1050 of that yarn are united and together-turned, so that denGarn with 140 filaments and a 3/4-S-Drehung will receive 2250. The yarn was converted to the production of a getufteten carpet with a loop commodity of a Quadratmetergewicht of 676 g. The carpet is manufactured using a polypropylene spin fleece document. It is colored cleaned, rinsed and getroeknet, with 100°C. Subsequently, the carpet is provided with a further Latex lower layer. The Latex lower layer consists of styrene/Buhadien rubber] atex, which 5 thread - ton PL oxide with a molecular weight of approximately 600 as antistatic additive contains. The antistatic characteristics of this carpet were besümmt in a Begebtest, whereby the temperature was held with 21, 6°C and the relative humidity with 20%. . Table I Beigehtest - maximum tension in kV sample initial value after 20 after steps steps Vergleiehsteppich 14, 4 - - carpet according to invention carpet according to invention with Latex, the Gew. - TON PL oxide contains carpet according to invention with Latex, which Gewo TONS of a Reaktionsprodul it from connections of of the general formula (I) with Diepoxyden and/or connections of of the general formulas (ha) or (IIb) contains, whatever additive is added to the yarn. 5,8,5.7,2.3,2.3,2.2,2.2,5.6 2 3 2.2 with spie 1 2: It as muddled in example i with the exception that the antistatic additive, in the place, was added where the melted polymer before the Pelletisieren from a reaction container is extruded. The following washing processes to extracting of Lactarn and OligomerenAnteilen from the pellets let the concentration of the antistatic additive in the polymer uninfluenced, since the AnGstatikum is insoluble in water. According to washing and drying the Polymerlsat was treated as in example I. The maximum tension in the going test amounted to at the beginning of 2, 4 kV. After 20 steps a value of 2,2 was obtained kV and after 40 steps a value of 2, 0 kV. With spie 1 3: It as muddled in example 1 with the exception that 400 ends of a unverstreckten yarn were combined into a strand. The strand was drawn rippled/crinkled and cut to 16, 5 cm long pile fibers, whereby all process steps mentioned were continuously accomplished. The pile fibers were then processed in 2, 25 that yarn with 3, 5 Z-turns versponnen and to a Velours-Teppich with a Quadratmetergewieht of 1352 g. The maximum tension in the accessible test was 2.3 kV. After 20 steps this value sank on 2, 2 kV and after 40 steps on 2, 01 kV. Example 4: It as muddled in example 1 with the exception that a Polyamid-6,6 was used. Continuous yarns and pile fiber yarns became gesture of! lt and the results concerning the antishatischen characteristics of the carpets as, made of it, folg@ determines: Initial value 2, 9 kV; after 20 steps 2.1 kV; after 40 Sehrinden 1, 5 kV. With s pi e I 5: It as muddled in example 1 with the exception that the yarn a antistatic additive in a quantity ven 10 Gew. - %, related to the polymer, contained. The voltage levels in a carpet made of it correspond to those the table 1. Example 6: It as muddled in example 1 with the exception that the Antistatikum containing in the yarn was used likewise in the conductive Latexsctücht. The measured maximum tension in a carpet made of it corresponds to the data of the table 1,