EP0185806A1 - Antistatisches Garn, solch ein Garn beinhaltende Textilerzeugnisse und Verfahren zu seiner Herstellung - Google Patents

Antistatisches Garn, solch ein Garn beinhaltende Textilerzeugnisse und Verfahren zu seiner Herstellung Download PDF

Info

Publication number
EP0185806A1
EP0185806A1 EP84308470A EP84308470A EP0185806A1 EP 0185806 A1 EP0185806 A1 EP 0185806A1 EP 84308470 A EP84308470 A EP 84308470A EP 84308470 A EP84308470 A EP 84308470A EP 0185806 A1 EP0185806 A1 EP 0185806A1
Authority
EP
European Patent Office
Prior art keywords
strand
conductive
strands
support
yarn
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.)
Granted
Application number
EP84308470A
Other languages
English (en)
French (fr)
Other versions
EP0185806B1 (de
Inventor
James Andrew Gusack
Thomas Edward Smith
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.)
BASF Corp
Original Assignee
Badische Corp
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
Application filed by Badische Corp filed Critical Badische Corp
Priority to EP19840308470 priority Critical patent/EP0185806B1/de
Priority to DE8484308470T priority patent/DE3469766D1/de
Publication of EP0185806A1 publication Critical patent/EP0185806A1/de
Application granted granted Critical
Publication of EP0185806B1 publication Critical patent/EP0185806B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/441—Yarns or threads with antistatic, conductive or radiation-shielding properties
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads

Definitions

  • the present invention relates to supported, antistatic yarns, a process for making them and to products incorporating such yarns.
  • Antistatic yarns have been in use for some time and are incorporated in fabrics and carpets to reduce the build up of electrostatic charges thereon.
  • Such antistatic yarns comprise one or more conductive strands together with one or more support strands.
  • the support strands have been utilized to improve the performance with respect to beaming, knitting and weaving of such conductive strands.
  • Conductive strands which are particularly useful in forming antistatic yarns are described in U.S. Patents 4,225,487 and 3,823,035 which disclose a method of making a conductive material by a process of suffusing conductive carbon black particles into a.polymeric substrate.
  • Such antistatic yarns have previously been formed by twisting conductive strands with strengthening support strands to form a yarn.
  • Such twisted antistatic ropes and yarns are described in U.S. Patents 3,206,923 and 3,291,897.
  • twistless antistatic yarns Whilst such twisted antistatic yarns provide improved performance over conductive strands in such operations as warping, weaving and knitting, it is frequently desirable to use twistless yarns in the production of antistatic products. It is one object of the present invention to provide twistless or substantially twistless antistatic yarns which nevertheless provide the desired improved performance in such process operations.
  • the production of supported conductive strands in the form of antistatic yarn involves an additional process step which adds to the cost of producing the final products produced by such downstream process operations.
  • 'It is a further object of the present invention to provide an improved method in which the formation of a supported conductive strand in the form of an antistatic yarn is concurrently effected with the production of the conductive strand itself.
  • the antistatic yarns of the present invention are produced using a solvent bonding technique.
  • a number of solvent bonding techniques have been proposed in the production of coherent products from staple fibre materials.
  • U.S. Patent No.3,657,591 discloses such a process of making a non-woven fabric from a blend of staple fibres.
  • a non-woven fabric containing a blend of staple fibres is contacted by an acid which softens only a specific type of fibre in the blend after which the blend is compressed to bond the fibres together.
  • U.S. 4,107,914 discloses a process of solvent bonding a sliver or roving of staple fibre into a twistless or substantially twistless yarn.
  • the process requires a roving of staple fibres to be wetted with a mixture of a latent solvent and a more volatile liquid.
  • the roving is then drafted, fibre twisted and brought into contact with a heated surface which first evaporates the volatile liquid and then activates the latent solvent which dissolves only a surface layer of staple fibres forming a substantial proportion of the sliver or roving and so bonds the staple fibres together, and thereafter evaporates the latent solvent from the yarn.
  • the resulting antistatic yarn exhibits all the advantageous properties of the hitherto known twisted yarns in subsequent processing steps such as warping, weaving and knitting and can even possess superior properties to such twisted yarns.
  • an antistatic yarn comprising at least one conductive strand composed of synthetic plastics material, said conductive strand having finely divided electrically conductive material suffused thereinto, and at least one support strand composed of synthetic plastics material, characterised in that said conductive strand is intermittently solvent bonded along its length to said at least one support strand.
  • the yarn comprises a plurality of support strands, said conductive strand being intermittently bonded along its length to more than one of said support strands.
  • the synthetic plastics material is preferably a polyamide, most preferably a polycaprolactane.
  • the preferred finely divided electrically conductive material is carbon black, although any other equivalent material could be used.
  • Preferably both the conductive strands and support strands are continuous filaments, the support strand most preferably being an interlaced yarn.
  • the antistatic yarn of the present invention finds use in the production of composite yarns composed of the antistatic yarn of the present invention interlaced into a carpet yarn.
  • the present invention also encompases carpets comprising the antistatic yarn of the invention.
  • the present invention also provides a method of producing an antistatic yarn which comprises suffusing a finely divided electrically conductive material into a strand composed of a synthetic plastics material to form a conductive strand and combining said conductive strand with at least one support strand composed of synthetic plastics material to form a coherent yarn, characterised by bringing the at least one support strand into generally side by side relationship with said conductive strand and intermittently solvent bonding said conductive strand along its length to said at least one support strand.
  • a moving support strand or strands into generally side-by-side relationship with a conductive or potentially conductive strand moving at the same speed, said conductive strand or said support strand or strands having provided on the surface thereof a solvent for the synthetic plastics material of both the conductive and support strands, surprisingly the conductive or potentially conductive strand will intermittently touch the support strand or strands at points along their length and form intermittent solvent bonded points or small areas and that subsequent evaporation of the solvent results in a coherent yarn without utilizing means to press the strands together.
  • the strands must, of course, be brought into genrally sid-by-side relationshp before any substantial amount of the provided solvent has evaporated so that the solvent action on the surfaces at the points of contact can cause solvent bonding to be effected.
  • the conductive or potentially conductive strand and the support strands first come into side-by-side relationship they should be no more than 3mm apart and most preferably should touch at this point.
  • the invention provides a method of forming an antistatic yarn which comprises suffusing a finely divided electrically conductive material into a strand composed of synthetic plastics material to form a conductive or potentially conductive strand and combining said conductive or potentially conductive strand with at least one support strand composed of synthetic plastics material to form a coherent yarn, characterised by providing a solvent for the synthetic plastics material of both the conductive or potentially conductive.strand and the at least one support strand on the surface of the conductive or potentially conductive strand, bringing the conductive strand and the at least one support strand into generally side-by-side relationship and travelling at the same speed and in the same direction before a substantial amount of the provided solvent has evaporated, allowing said strands to touch each other at intermittent points along their length, whereby to effect intermittent solvent bonding of the at least one support strand with the conductive strand along the length thereof and effecting evaporation of the provided solvent to form a coherent antistatic yarn.
  • the suffusing of the finely divided electrically conductive material into the strand of synthetic plastics material may be effected in known manner by applying to the travelling strand a dispersion of the finely divided material in a liquid which is a solvent for the synthetic plastics material to form a potentially conductive strand and evaporating the solvent to form a conductive strand.
  • the said liquid is also a solvent for the synthetic plastics material of the support strands and the support strands are brought into generally side-by-side relationship with the potentially conductive strand before a substantial amount of the liquid has evaporated from the potentially conductive strand.
  • the support strands and the conductive or potentially conductive strands are preferably brought into generally side-by-side relationship by passing the non-solvent bearing strand or strands over a guide such as a guide bar disposed adjacent but not touching, the moving solvent or liquid dispersion carrying strand so that the non-solvent-bearing strand or strands chanbe direction to run generally parallel with the solvent or liquid dispersion bearing strand.
  • a guide such as a guide bar disposed adjacent but not touching
  • the conductive or potentially conductive and the support strands can be brought into generally side-by-side relationship by passing the solvent or liquid dispersion carrying strand through a hollow supply means (such as a pirn) for the non-solvent-bearing strand or strands and then passing both types of strand through a balloon guide, the solvent or liquid dispersion bearing strand passing through the centre of the balloon guide, but the non-solvent-bearing strands being in constant contact with the inside surface of the balloon guide, which arrangement has the effect of cabling the non-solvent-bearing strand or strands around the solvent bearing strand.
  • a hollow supply means such as a pirn
  • the present invention provides a method in which the finely divided electrically conductive material is suffused into a strand of synthetic plastics material to produce a potentially conductive strand by applying to the travelling strand a dispersion of said finely divided material in a liquid which is a solvent for synthetic plastics material of both the strand which is to become the conductive strand and the support strands, but does not dissolve or react with said finely divided material, characterised in that the support strand or strands are brought into generally side-by-side relationship with the potentially conductive strand before a substantial amount of the liquid carried by the potentially conductive strand has evaporated therefrom and allowing said conductive strand to contact said potentially support strand or strands at intermittent points along the length thereof, the potentially conductive strand being allowed to contact only the support strand or strands and the atmosphere until the liquid has substantially evaporated from the potentially conductive strand whereby to effect intermittent solvent bonding of the conductive strand to the support strand or strands along the length thereof.
  • the evaporation of solvent e.g. liquid of the liquid dispersion is effected by passing the potentially conductive strand and the support strand or strands in generally side-by-side relationship and in contact at intermittent points along their length through an evaporation zone maintained at an elevated temperature.
  • air at an elevated temperature is passed through the evaporation zone in countercurrent to the direction of travel of the potentially conductive and the support strands.
  • the solvent is selected according to the nature of the synthetic plastics materials.
  • the solvent is preferably formic acid.
  • FIG. 1 is a schematic representation of the most preferred process for carrying out the present invention.
  • a first pirn 1 having a first strand 2 wound thereon supplies a strand 2 to a conductive mix applicator 3.
  • the strand 2 is most preferably a nylon-6 monofilamentary strand.
  • the conductive mix applicator 3, shown schematically, is comprised of a reservoir (which contains a conductive mix), the reservoir having an inlet orifice and an outlet orifice through which the strand enters and exits the reservoir. Both orifices are sized slightly larger than the strand diameter.
  • the strand exits the reservoir with a controlled amount of mix thereon.
  • the mix is most preferably formic acid having nylon 6 polymer dissolved therein and conductive carbon black particles dispersed therein.
  • the strand is pulled off of the first pirn 1 by a pair of rollers 4, the surface speed of each roller 4 being set at approximately 700 metres per minute.
  • the first strand 2 travels into an evaporation tube 5.
  • a second strand 6 is brought into generally side-by-side relationship with the first strand 2, the second strand 6 most preferably being a nylon-6 multifilament strand, the second strand 6 being supplied from a second pirn 7. It should be noted that the second strand 6 is most preferably directed through a balloon guide 9 in order to confine the downstream motion of the second strand 6.
  • the second strand 6 is brought into generally side-by-side relationship with the first strand 2 by placing a guide 8 above the entrance to the evaporation tube 5.
  • the guide 8 serves as a contact point for the second strand 6, this contact point allowing the second strand 6 to change directions so that immediately downstream of the guide 8, the direction of travel of the second strand 6 and the first strand 2 is generally parallel.
  • the speed of both strands 2 and 6 is controlled by the rollers 4. Both strands 2 and 6 travel at the same speed.
  • the second strand 6 is threaded over the guide 8 so that the second strand 6 is between the guide 8 and the first strand 2, the guide being positioned so that there is a distance ranging from 0 mm to 3 mm between the first strand 2 and the second strand 6 at the point at which the second strand 6 contacts the guide 2.
  • the first strand contacts the second strand at the guide (i.e. the most preferred distance is 0 mm).
  • the path of travel of the first strand is substantially undeflected (unchanged) by the guide and the support strand.
  • the first strand 2 and the second strand 6 travel into the evaporation tube in close proximity to one another, and it has been observed that the two strands 2 and 6 tend to "jump together" slightly downstream of the guide 8 when a distance no greater than 3mm is maintained between the strands 2 and 6 at the guide 8.
  • the second strand 6 is an interlaced yarn.
  • the strands 6 and 2 are subjected to a countercurrent (about 600 metres per minute) of hot air (most preferably 150°C), the hot air entering the evaporation tube at an inlet port 15 and exiting the evaporation tube at an exhaust port 10.
  • the "break" 11 indicated in the figure is included in order to reveal the fact that the evaporation tube must be relatively long compared to the remainder of the process.
  • the distance from the first pirn 1 to the evaporation tube entrance is about 1 metre
  • the length of the evaporation tube 5 is about 10 metres
  • the distance from the evaporation tube exit to a yarn take-up pirn 12 is about 2 metres.
  • the mix applied to the first strand 2 contacts and spreads into the second strand 6 at points at which the first strand 2 contacts the second strand 6.
  • the mix suffuses into both yarns 2 and 6 and causes intermittent solvent bonding to occur at the contact points.
  • a supported antistatic yarn 13 has been formed by the solvent- bonding occurring between the two strands 2 and 6 entering the evaporation tube 5.
  • the yarn 13 After emerging from the downstream end of the evaporation tube 5, the yarn 13 is directed around the rollers 4 which control the speed of the yarn, following which the yarn 13 is directed through a pigtail guide 14, following which the yarn is wound up onto the take-up pirn 12, the yarn 13 together with the take up pirn 12 forming a package of supported antistatic yarn.
  • Figure 2 is a schematic of an alternative process of the invention.
  • the process illustrated in Figure 1 is used to make what may be termed a "simple side-by-side" supported antistatic yarn.
  • the second pirn 7 has the first strand 2 running longitudinally therethrough, the pirn 7 being hollow.
  • the first strand 2 is directed through the mix applicator 3 before it enters the second pirn 7, and the first strand is directed through the centre of a balloon guide 8A after emerging from the second pirn 7.
  • the second strand 6 is taken off the second pirn 7 and is also directed through the balloon guide 8A.
  • the first strand 2 is aligned so that it travels through the centre of the guide 8A, while the second strand constantly remains on the inside surface of the balloon guide.
  • the process illustrated in figure 2 "cables" the support strand 6 around the antistatic strand 2.
  • the process illustrated in figure 2 results in a "cabled supported antistatic yarn".
  • the balloon guide 8A most preferably has a 4mm wide inside diameter.
  • This guide 8A is designated as being different from the guide 8 in Figure 1.
  • the alternative process illustrated in Figure 2 requires a balloon guide, whereas the preferred process illustrated in Figure 1 may use, in addition to a balloon guide, any other guide which will hold the second strand 6 at the desired point alongisde the path of the first strand 2.
  • the alternative process illustrated in Figure 2 is no different from the preferred process illustrated in Figure 1.
  • the process of Figure 1 is preferred for several reasons, including easier stringup and the convenience of using transfer tails on the second strand 6, this convenience enabling a "non-stop" process not possible with the embodiment shown in Figure 2.
  • Figure 3 is a partial enlarged view of the product of the present invention.
  • the supported antistatic yarn 13 is shown in part, i.e. several nonconductive support strands are not shown for the sake of simplicity.
  • a conductive monofilament strand 31 is shown in combination with three nonconductive support strands 34. At two separate solvent-bonded points 32, the conductive strand has been solvent bonded to a nonconductive support strand 34.
  • Figure 4 shows an enlarged close-up view of one of the solvent bonds 32 shown in Figure 3. As can easily be seen in Figure 4, at the solvent-bonded point 32 the mix on the conductive strand 31 has spread onto the nonconductive support strand 34 to which the conductive strand 31 has solvent-bonded.
  • Figure 5 is a cross sectional view of the strands shown in Figure 4, the cross sectional view being taken through section C-C shown in Figure 4.
  • Figure 5 shows the conductive strand 31 having an outer "coated” region 36 and an inner “suffused” region 35.
  • the conductive strand 31 is solvent bonded to the support (nonconductive) strand 34, with the supporting strand 34 having an outer "coated” region 38 partially around and an inner “suffused” region 37 also partially around.
  • An interface region 39 is believed to exist between the conductive strand 31 and the nonconductive support strand 34.
  • the interface region 39 is furthermore believed to resemble the outer "coated” regions 38 and 36.
  • the support strand is brought into general side-by-side relationship and intermittent contact with a conductive strand, e.g. a filamentary substrate both after the conductive strand has been coated with a conductive solvent-containing mix, and before the solvent has substantially evaporated from the mix.
  • a conductive strand e.g. a filamentary substrate both after the conductive strand has been coated with a conductive solvent-containing mix, and before the solvent has substantially evaporated from the mix.
  • the support strand is brought into general side-by-side relationship (i.e. 4 3mm) from the web conductive support at the guide 8 so that the two strands will "jump together" in time for an adequate frequency of solvent-bonded "weld points" to occur.
  • the conductive strand once wet with the mix, contacts only the support strand and the atmosphere, or the mix will accumulate on any contact point and eventually will be picked up and carried by the conductive strand or the support strand. Any sizeable accumulation (i.e. a lump) of mix will probably contain so much solvent that it will fail to dry in the evaporation tube and will fuse windings of yarn together on the package, ruining the remainder of the package for downstream processing operations.
  • a conductive mix applicator was constructed from a first pipe aving a length of 55 mm and an i.d. of 10 mm.
  • the first pipe was vertically oriented and securely mounted. From the side, a second pipe was connected to the midpoint of the first pipe.
  • the second pipe had a shutoff valve thereon a short way back from the intersection of the second pipe with the first pipe. The shutoff valve was closed.
  • the second pipe was connected to a pressurized source of conductive mix.
  • Two jewelled bearings synthetic sapphire watch bearings
  • Each jewelled bearing had an outside diameter of 1.5 mm.
  • each bearing had a thickness of 0.5 millimetres.
  • the bearings were swaged into stainless steel discs which had a diameter of 13 mm and a thickness of 1 millimetre.
  • Each disc had a through hole which was centered and was 1.3 mm in diameter, the through hole having a counterbore 1.6 mm in diameter and 0.5 mm deep.
  • the bearings were swaged into the counterbores. After both of the bearings were swaged into the counterbores, the discs were clamped onto the ends of the first pipe (i.e. each disc/bearing combination formed a "cap" on the ends of the first pipe).
  • the bearings were about 55 mm apart. The clamping was performed so that watertight seals were formed between the pipe and the caps.
  • the combination of the bearings, the discs, and the first pipe constitutes the conductive mix applicator.
  • the cap on the upper end of the first pipe was removed, and the monofilament strand was threaded through the 75 micron orifice by hand.
  • Several inches (about 10 inches) of monofilament strand were pulled through the orifice.
  • the bottom cap was removed from the pipe and the upper cap was held close to the upper end of the first pipe while a slight vacuum was applied to the bottom of the first pipe.. The airflow created by the vacuum caused the 10 inches of monofilament strand to be directed through the first pipe.
  • the upper cap was then reclamped, with the monofilament strand threaded through both the upper cap (i.e. bearing) and the first pipe.
  • the monofilament strand was then threaded through the lower bearing, after which the lower cap was reclamped in position.
  • the monofilament strand was then pulled downward towards the upper end of the evaporation tube.
  • a second polycaprolactam strand was located on a pirn above and to the side of the upper end of the evaporation tube, as shown in Figure 1.
  • the second strand was a 140 denier, 36 filament yarn. Both strands were obtained from Badische Corporation of Anderson, South Carolina.
  • a strand guide bar was positioned immediately above the upstream end of the evaporation tube and was aligned very close to the path which the monofilament strand would ultimately take after completion of stringup.
  • the second strand (the multifilament strand) was passed over the guide, the second strand changing direction of travel by contacting the guide bar.
  • the second prin had an associated balloon guide which positioned the second strand on the guide bar at a point between the guide bar and the point at which the first strand cam closest to the guide bar.
  • the guide bar was aligned so close to the path of the first strand that the first strand barely touched the second strand, but the path of the first strand was not substantially deflected nor did the first strand ever touch the guide bar once stringup was complete.
  • Both strands were then directed through a 10 metre long evaporation tube and wound twice around a pair of rollers, as shown in Figure 1. Both rollers had surface speed of 690 metres per minute, with the larger roller having a diameter of about 10 centimetres and the smaller roller having a diameter of about 2.5 centimetres. The winding of the coherent yarn on a single take-up pirn was then begun as shown in Figure 1.
  • a conductive mix was made by dispersing 6 parts (by weight) of conductive carbon black into 4 parts of polycaprolactam chip and 90 parts of 70X formic acid.
  • the carbon black particles were obtained from Cabot Corporation of 200 Raritan Centre, Parkway, Edison, N.J. 08817.
  • the carbon black was labelled Vulcan XC-72R.
  • the polycaprolactam chip was obtained from Badische Corporation, Freeport, Texas, the chip being designated as Nylon 6 grade 206 chip.
  • the product yarn of the above described process had intermittent solvent bonds averaging 5mm to 10mm apart. If the gap (between the first and second strands) at the guide was widened to as much as 3mm, the solvent bonds may average one every 200 mm, and the product still shows improved beaming over other prior art supported yarns, such as twisted yarns.
  • the product made from the process described above was a 161 denier 37 filament supported antistatic yarn which had a breaking strength of about 4.4 grams per denier. The breaking strength of both original strands was approximately 4.4 grams per denier. The mix added approximately 1 denier to the sum of the original strand deniers.
  • the product of this example is a "simple side-by-side" supported, solvent-bonded, antistatic yarn, which is the most preferred product of the present invention.
  • the yarn made by the process of this example was used in the manufacture of Polypropylene Carpet Primary Fabric.
  • the fabric was manufactured by Amoco Fabrics, South Hamilton Street, Dalton, Georgia 30720.
  • the fabric was designated Polybac AS, style number 2605.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
EP19840308470 1984-12-06 1984-12-06 Antistatisches Garn, solch ein Garn beinhaltende Textilerzeugnisse und Verfahren zu seiner Herstellung Expired EP0185806B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19840308470 EP0185806B1 (de) 1984-12-06 1984-12-06 Antistatisches Garn, solch ein Garn beinhaltende Textilerzeugnisse und Verfahren zu seiner Herstellung
DE8484308470T DE3469766D1 (en) 1984-12-06 1984-12-06 Supported antistatic yarn, products incorporating same, and method for its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19840308470 EP0185806B1 (de) 1984-12-06 1984-12-06 Antistatisches Garn, solch ein Garn beinhaltende Textilerzeugnisse und Verfahren zu seiner Herstellung

Publications (2)

Publication Number Publication Date
EP0185806A1 true EP0185806A1 (de) 1986-07-02
EP0185806B1 EP0185806B1 (de) 1988-03-09

Family

ID=8192831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840308470 Expired EP0185806B1 (de) 1984-12-06 1984-12-06 Antistatisches Garn, solch ein Garn beinhaltende Textilerzeugnisse und Verfahren zu seiner Herstellung

Country Status (2)

Country Link
EP (1) EP0185806B1 (de)
DE (1) DE3469766D1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH698176B1 (de) * 2006-08-18 2009-06-15 Textilma Ag Leiterfaden, insbesondere Antennenfaden sowie seine Verwendung.
ES2336867A1 (es) * 2007-06-26 2010-04-16 Jordi Mas I Sanges Hilo textil conductor para la conformacion de alfombras antiestaticas y alfombras antiestaticas conformadas con dicho hilo.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2109090C1 (ru) * 1994-09-27 1998-04-20 Государственная академия легкой промышленности Украины Способ получения антистатических текстильных материалов и изделий

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2060679A5 (de) * 1969-09-02 1971-06-18 Allied Chem
US3590570A (en) * 1968-03-14 1971-07-06 Teijin Ltd Sewing thread
DE2106784A1 (de) * 1970-02-13 1971-08-19 Imperial Chemical Industries Ltd London Mischfaserstruktur
FR2193888A1 (de) * 1972-07-21 1974-02-22 Du Pont
US3969559A (en) * 1975-05-27 1976-07-13 Monsanto Company Man-made textile antistatic strand
US4232082A (en) * 1979-07-11 1980-11-04 Nippon Keori Kabushiki Kaisha Anti-electrostatically guarded worsted suiting
DE3019151A1 (de) * 1980-05-20 1981-11-26 Kühn, Vierhaus & Cie AG, 4050 Mönchengladbach Elektrisch leitfaehiges garn und verfahren zu seiner herstellung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3590570A (en) * 1968-03-14 1971-07-06 Teijin Ltd Sewing thread
FR2060679A5 (de) * 1969-09-02 1971-06-18 Allied Chem
DE2106784A1 (de) * 1970-02-13 1971-08-19 Imperial Chemical Industries Ltd London Mischfaserstruktur
FR2193888A1 (de) * 1972-07-21 1974-02-22 Du Pont
US3969559A (en) * 1975-05-27 1976-07-13 Monsanto Company Man-made textile antistatic strand
US4232082A (en) * 1979-07-11 1980-11-04 Nippon Keori Kabushiki Kaisha Anti-electrostatically guarded worsted suiting
DE3019151A1 (de) * 1980-05-20 1981-11-26 Kühn, Vierhaus & Cie AG, 4050 Mönchengladbach Elektrisch leitfaehiges garn und verfahren zu seiner herstellung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH698176B1 (de) * 2006-08-18 2009-06-15 Textilma Ag Leiterfaden, insbesondere Antennenfaden sowie seine Verwendung.
ES2336867A1 (es) * 2007-06-26 2010-04-16 Jordi Mas I Sanges Hilo textil conductor para la conformacion de alfombras antiestaticas y alfombras antiestaticas conformadas con dicho hilo.
ES2336867B1 (es) * 2007-06-26 2011-02-10 Jordi Mas I Sanges Hilo textil conductor para la conformacion de alfombras antiestaticasy alfombras antiestaticas conformadas con dicho hilo.

Also Published As

Publication number Publication date
EP0185806B1 (de) 1988-03-09
DE3469766D1 (en) 1988-04-14

Similar Documents

Publication Publication Date Title
US4545835A (en) Method of forming supported antistatic yarn
US4612150A (en) Process for combining and codrawing antistatic filaments with undrawn nylon filaments
CA1204568A (en) Polyester/nylon bicomponent filament
US3853977A (en) Method for producing mixed filaments
EP0529506B1 (de) Papiermaschinenfilze und Verfahren zur Herstellung derselben
GB2053078A (en) Method of producing melt-spun crystalline filaments which are stretched to orientate the molecules
US3657871A (en) Method and apparatus for spreading or dividing yarn, tow or the like
US5310514A (en) Process and spinning device for making microfilaments
EP0444637A2 (de) Verwirbelung von Endlosbauschgarnen und Binderfasern niedrigen Schmelzpunktes
EP0185806B1 (de) Antistatisches Garn, solch ein Garn beinhaltende Textilerzeugnisse und Verfahren zu seiner Herstellung
IE852375L (en) Producing a flat yarn of polyentee
JPH026613A (ja) ポリスチレンを含む伝導性フィラメント，その製造方法，多フィラメント系及びカーペット
US4619803A (en) Self-texturing nylon yarn spinning process
US3482389A (en) Production of fancy yarn
US5308563A (en) Process for producing antistatic yarns
US3949544A (en) Process for producing high bulky yarn by false-twisting system
WO2018122880A1 (en) Transport belt for transporting fibre strand and a method for making same
US3874160A (en) Process for producing high bulky yarn by false-twisting system
CA1249920A (en) Supported antistatic yarn
TW202129102A (zh) 方形中空纖維
EP0250664B1 (de) Verfahren zum Zusammenfügen und Zusammenverstrecken von antistatischen Fasern mit nichtverstreckten Nylonfasern
EP0229172B1 (de) Faser mit kern und umhüllung und deren herstellung
US3916611A (en) Mixed filament yarn
JP3170042B2 (ja) 複合糸およびその製造方法
JPH0910659A (ja) 油剤付与ガイド

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE FR GB IT NL

17P Request for examination filed

Effective date: 19860825

17Q First examination report despatched

Effective date: 19870112

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed
AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB IT NL

REF Corresponds to:

Ref document number: 3469766

Country of ref document: DE

Date of ref document: 19880414

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITPR It: changes in ownership of a european patent

Owner name: CESSIONE;BASF CORPORATION

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732

NLS Nl: assignments of ep-patents

Owner name: BASF CORPORATION TE WILLIAMSBURG, VIRGINIE, VER. S

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19951004

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19951108

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19951212

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19951227

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19960109

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19961206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19961231

BERE Be: lapsed

Owner name: BASF CORP.

Effective date: 19961231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19970701

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19961206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19970829

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19970701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19970902

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST