EP0496117A2 - Procédé de fabrication d'un fil à coudre apprêté - Google Patents

Procédé de fabrication d'un fil à coudre apprêté Download PDF

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Publication number
EP0496117A2
EP0496117A2 EP91122297A EP91122297A EP0496117A2 EP 0496117 A2 EP0496117 A2 EP 0496117A2 EP 91122297 A EP91122297 A EP 91122297A EP 91122297 A EP91122297 A EP 91122297A EP 0496117 A2 EP0496117 A2 EP 0496117A2
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EP
European Patent Office
Prior art keywords
sewing thread
treatment
equipment
yarn
temperature plasma
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.)
Withdrawn
Application number
EP91122297A
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German (de)
English (en)
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EP0496117A3 (en
Inventor
Kurt Truckenmüller
Karl Greifeneder
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.)
Amann and Soehne GmbH and Co KG
Original Assignee
Amann and Soehne GmbH and Co KG
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
Priority claimed from DE4100785A external-priority patent/DE4100785C2/de
Priority claimed from DE4100786A external-priority patent/DE4100786C2/de
Priority claimed from DE19914100787 external-priority patent/DE4100787C2/de
Application filed by Amann and Soehne GmbH and Co KG filed Critical Amann and Soehne GmbH and Co KG
Publication of EP0496117A2 publication Critical patent/EP0496117A2/fr
Publication of EP0496117A3 publication Critical patent/EP0496117A3/de
Withdrawn legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/008—Treatment with radioactive elements or with neutrons, alpha, beta or gamma rays
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/001—Treatment with visible light, infrared or ultraviolet, X-rays
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/04—Physical treatment combined with treatment with chemical compounds or elements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
    • D06M14/18—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
    • D06M14/18—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation
    • D06M14/20—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation on to materials of natural origin
    • D06M14/24—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation on to materials of natural origin of animal origin, e.g. wool or silk

Definitions

  • the present invention relates to a method for producing a sewing thread provided with equipment with the features of the preamble of patent claim 1 and a sewing thread with the features of the preamble of patent claim 38.
  • sewing threads are provided with appropriate equipment, which is also known as finishing. This finish can be applied using different methods.
  • the sewing thread is usually passed over a corresponding block of the finishing agent, so that due to the roughness of the sewing thread, a corresponding amount of finishing agent is entrained here.
  • the finishing agent is also applied from aqueous systems. This usually takes place after the sewing thread has been appropriately colored, the sewing thread here preferably being made up as a bobbin.
  • the condition of the finish is then determined by mechanical dewatering of the sewing threads treated in this way to a predetermined residual moisture and by setting a certain finish concentration in the aqueous system.
  • Other equipment such as special organic nitrogen compounds, is also applied to the sewing thread using the same application techniques in order to prevent the sewing thread from rotting due to microorganisms.
  • the water repellent equipment As another example of other equipment, the oleophobic equipment or to name the hydrophilic finish.
  • special fluorocarboxylic acid derivatives, fluorocarbons, organosilicon compounds, styrene derivatives, halobutadienes or the like are applied to the sewing threads to be finished using the techniques described above.
  • the present invention has for its object to provide a method of the type specified by which equipment can be produced particularly evenly on the surface of a sewing thread.
  • a method for producing a with a Equipment provided sewing thread in particular a sewing thread containing synthetic fibers, is proposed, in which, after spinning, equipment of the above-mentioned type is applied to the sewing thread.
  • monomers and / or oligomers which can be ionically and / or radically oligomerized or polymerized with the formation of the equipment and / or the equipment itself are applied to the sewing thread.
  • a treatment is carried out by which radicals and / or ions are generated.
  • the inventive method described above thus provides two variants.
  • the actual equipment is only produced on the surface of the sewing thread by applying appropriate monomers and / or oligomers to the sewing thread to be equipped and carrying out the corresponding treatment beforehand, simultaneously or afterwards, in order to obtain the necessary for the oligomerization or Polymerization of these monomers or oligomers to generate radicals and / or ions required.
  • the equipment is applied as such to the sewing thread and, before or at the same time or afterwards, the radicals or ions are generated by a suitable treatment, which is described in detail below, which are then used for three-dimensional crosslinking of the equipment and / or for ensure chemical attachment of the equipment to the yarn polymer.
  • the method according to the invention has a number of advantages. It thus ensures that the equipment produced on the surface of the sewing thread is distributed particularly evenly over the thread length and the thread circumference, so that the sewing thread thus equipped has the same properties as seen over the length or the thread circumference.
  • a sewing thread produced by the method according to the invention has equipment that is fixed much more firmly to the thread material compared to chemically identical, conventionally applied equipment. This is attributed to the fact that, for the first case described above, the monomers or oligomers applied to the sewing thread can diffuse much more easily into the amorphous yarn polymer regions, which means that the equipment produced therefrom by radical and / or ionic oligomerization or polymerization accordingly is fixed in the yarn polymer.
  • the process according to the invention can form a chemical bond (covalent or ionic) between the yarn polymer and the monomers, oligomers or the equipment produced therefrom.
  • This chemical bond also occurs in particular when the equipment is applied as such to the sewing thread, as described above for the second case of the method according to the invention. This in turn means that equipment which is not anchored to the yarn polymer is removed, so that lubrication of equipment which frequently occurs in the prior art cannot be observed in the process according to the invention.
  • the monomers or oligomers which are oligomerized or polymerized for finishing can also be handled much better owing to their relatively short chain length, since the problems of dispersion and emulsion stability mentioned at the outset are substantially lower or nonexistent. This is particularly true for equipment that has a molecular weight between about 800 and about 180,000 after the oligomerization or polymerization. It was not possible to observe the filtration of the equipment on the inner winding layers of the cross-wound bobbin as described in the prior art in the method according to the invention.
  • a first embodiment of the method according to the invention provides that reactive centers are generated in the yarn and / or on its surface by the radicals and / or ions generated during the treatment. Simultaneously or thereafter, the yarn is allowed to react with the equipment and / or the monomers and / or oligomers forming the equipment to form equipment chemically bonded to the yarn polymer.
  • These reactive centers which are generated in the yarn or on its surface, can be radicals, ions and / or functional (reactive) groups.
  • the equipment used for this purpose has, as reactive groups, heterocyclic ring systems, in particular triazine derivatives, cyanuric halides, pyrimidine derivatives, such as, for example, 2,4,5,6 tetrahalopyrimidine or 2,4,6 trihalopyrimidine, quinazoline derivatives, in particular 2,4-dihalo-quinazoline, quinoxaline derivatives, in particular 2,3-dichloro-quinoxaline and / or pyridazone derivatives, in particular 1-aryl-4,5-dihalo-pyridazone-6.
  • the derivatives of imidazole, thiazole, isothiazole and corresponding pyrimidine derivatives such as quinoline or pyridizine derivatives, may also be mentioned.
  • the equipment may also contain, as reactive groups, epoxy, ethyleneimine, sultone, isocyanate, isothiocyanate, sulfone and / or sulfofluoride groups, which then form a covalent bond with the functional (reactive) groups of the yarn Polymers react as described above for the ⁇ -substituted ethane derivatives.
  • Another embodiment of the process according to the invention provides that ionic and / or preferably radical chain cleavage of the yarn polymers is carried out, thereby creating free bond valences which are then saturated with correspondingly radically and / or ionically oligomerizable or polymerizable equipment.
  • the equipment is directly connected to the polymer forming the yarn.
  • another embodiment of the process according to the invention provides that a pile and in particular a winding body is produced from the sewing thread, then the monomers, oligomers and / or the equipment are applied and then the treatment for producing the Carries out radicals and / or ions. Surprisingly, it was found that with this procedure there were no differences with regard to the number of runs and the uniformity of the finish over the yarn length or the yarn cross-section.
  • a particularly suitable embodiment of the method according to the invention provides that the sewing thread is brought into contact with at least one initiator, which breaks down into radicals and / or ions during the treatment. This then has the effect that corresponding radicals or ions are formed at the points at which the initiator is applied to the yarn, which ions are then reacted accordingly, as described above.
  • the selection of the initiator used in the process according to the invention it should generally be stated that only those initiators are selected here which actually decompose into radicals and / or ions under the respectively selected treatment conditions. Furthermore, an important selection criterion for the initiator is that the initiator breakdown caused by the treatment takes place under conditions in which the fiber polymers forming the sewing thread remain unchanged, so that the treatment does not bring about undesirable changes in properties. Exclusively, the decomposition of the initiator should facilitate the formation of the radicals and / or ions required for the process according to the invention.
  • the term initiator includes Within the scope of this application also mixtures which contain several initiators.
  • Preferred initiators which are used alone or in a mixture in the process according to the invention are initiators based on a persulfate, preferably potassium persulfate or ammonium persulfate; Initiators based on a peroxide, in particular dibenzoyl peroxide, cumene hydroperoxide, cyclohexanone peroxide, di-tert-butyl peroxide, cyclohexylsulfonylacetyl peroxide; Initiators based on an azo compound, in particular azodiisobutyronitrile, and / or 4,4'-azo-bis- (4-cyanopentanoic acid chloride). Initiators based on benzpinacol, diisopropyl percarbonate and / or butyl peroctoate can also be used.
  • redox systems are used here as initiators. These redox systems deliver a particularly high yield of the radicals or ions generated thereby during the treatment.
  • potassium persulfate and / or ammonium persulfate / sodium hyposulfite Hydrogen peroxide / iron (II) sulfate
  • Cumene hydroperoxide / polyamine and / or benzoyl peroxide / N-dimethylaniline used.
  • a further embodiment of the method according to the invention provides that the sewing thread is swollen before and / or when the initiator is applied by adding a swelling agent.
  • a swelling agent known to the person skilled in the art for the particular substrate, in particular from the dyeing processes, such as, for example, lye for cellulose-containing substrates or aromatic hydrocarbons for substrates containing polyester or polyamide, have the effect that the initiator is not only adsorbed or absorbed on the surface of the sewing thread , but also in particular can diffuse into the amorphous areas of the sewing thread, so that the corresponding radical and / or ion formation also takes place inside the fiber.
  • the initiator can be applied to the sewing thread by flowing or flowing through the sewing thread with the gaseous initiator for a predetermined time. If the sewing thread is in the form of a pile and in particular in the form of a package, it is advisable to flow through the pile or package for a predetermined time, in particular between two minutes and thirty minutes, with the gaseous initiator.
  • a corresponding solution, dispersion or emulsion preferably in water or in a solvent, in particular in a low-boiling solvent, is prepared.
  • This solution, dispersion or emulsion is then applied to the sewing thread in a customary manner, and in the event that the sewing thread is in the form of a pile, flow of the solution, dispersion or emulsion through the pile is preferred for the above-mentioned predetermined time.
  • the treatment required for generating the radicals and / or ions in the process according to the invention comprises thermal treatment, irradiation with light, in particular with UV light, ⁇ , ⁇ or ⁇ irradiation or treatment of the sewing thread in an electric field.
  • a particularly suitable embodiment of the method according to the invention provides that the treatment for generating the ions and / or radicals is a low-temperature plasma treatment.
  • the conditions of the low-temperature plasma treatment e.g. the pressure, the power, the frequency, the residence time, the power density and the gas which may be used here, and the initiator after the selection of the oligomers, monomers or the equipment to be applied in each case.
  • the material used for the sewing thread also has a decisive influence on the selection of the conditions for low-temperature plasma treatment.
  • the low-temperature plasma treatment is usually carried out at a vacuum between 5 Pa and 500 Pa. Particularly good results with regard to the yield are obtained if the low-temperature plasma treatment is carried out under a vacuum between 20 Pa and 300 Pa, preferably between 70 Pa and 200 Pa.
  • Another embodiment of the method described above provides that in the low-temperature plasma treatment, a vacuum between 5 Pa and 120 Pa, preferably between about 20 Pa and 120 Pa, during a first treatment period and a vacuum between during a subsequent second treatment period 80 Pa and 250 Pa, preferably between 100 Pa and 200 Pa.
  • a vacuum between 5 Pa and 120 Pa, preferably between about 20 Pa and 120 Pa, during a first treatment period and a vacuum between during a subsequent second treatment period 80 Pa and 250 Pa, preferably between 100 Pa and 200 Pa.
  • the winding body or the pile is particularly well flowed through, so that Non-uniformities in the generation of radicals or ions over the thickness of the winding body or the pile are completely excluded.
  • the transition from the first treatment period to the second treatment period and from the second treatment period to the first treatment period can be designed in such a way that the vacuum is suddenly set in each treatment period.
  • a particularly gentle treatment of the winding body or the pile enables an embodiment of the method according to the invention, in which the vacuum in the first treatment period is continuously transferred to the vacuum in the second treatment period and the vacuum in the second treatment period is continuously transferred to the vacuum in the first treatment period, so that the pressure is increased or decreased sinusoidally throughout the treatment.
  • the residence time in the low-temperature plasma treatment varies between 10 seconds and 160 seconds, preferably between 20 seconds and 60 seconds, in each treatment period.
  • the frequency in the low-temperature plasma treatment is usually between 1 MHz and 20 MHz, the low-temperature plasma treatment preferably being carried out at a frequency of 13.56 MHz.
  • the low-temperature plasma treatment which leads to the destruction of the initiator and thus to the formation of the required radicals and / or ions, can also be carried out at a frequency of 27.12, 40.68 and / or 81.36 MHz carry out, but it is also possible to change the frequencies in the aforementioned range or to set different values within the scope of the aforementioned values during the low-temperature plasma treatment.
  • the power used in low temperature plasma treatment varies between 200 watts and 600 watts.
  • the power density in the low-temperature plasma treatment varies between 2 W / dm3 and 25 W / dm3, with the volume information relating to the volume of the autoclave used in each case.
  • a corona treatment is selected as the treatment which leads to the formation of the radicals and / or ions.
  • This corona treatment is preferably carried out at a pressure which is at normal pressure and / or slightly above and / or slightly below normal pressure.
  • the corona treatment is carried out at a pressure between 86.659 x 103 Pa and 133.32 x 103 Pa, preferably at a pressure between 93.325 x 103 Pa and 113.324 x 103 Pa.
  • the pressure change between the first and second treatment periods can also be carried out abruptly in the case of the corona treatment.
  • the winding body or the pile accumulates in an undesirable manner during the abrupt pressure change, so that especially in the case of relatively soft winding bodies or softly packed piles, i.e. those packages or heaps in which the Shore hardness is low, a continuous pressure increase is carried out during the transition from the first treatment period to the second treatment period and a continuous pressure reduction is carried out during the transition from the second treatment period to the first treatment period.
  • This pressure change is then preferably carried out sinusoidally, with treatment times between 10 seconds and 160 seconds, in particular between 20 seconds and 60 seconds, being selected for the first and second periods.
  • the autoclave used for the corona treatment is preferably evacuated to a pressure between 1,000 Pa and 10,000 Pa, so that the respective gas and, if appropriate, the initiator which flows through the winding body or the pile can then be fed in, so as to adjust the pressure in the autoclave to a value between 86.659 x 103 Pa and 133.32 x 103 Pa.
  • the total treatment time for the low-temperature plasma treatment or corona treatment is between about two minutes and about thirty minutes, depending on the products used (monomers, oligomers, equipment), the power densities set, any initiators selected and the respective substrate of the sewing thread. preferably between about five minutes and about twenty minutes.
  • Another embodiment of the method according to the invention which is used in particular to generate functional (reactive) groups in the yarn polymer, provides that the sewing thread is subjected to a low-temperature plasma treatment or corona treatment as a pile after an initiator has been applied beforehand.
  • a reactive gas or an inert gas flows through or flows onto this pile. These gases have the effect that corresponding radicals or ions are formed in the area in which the initiator is adsorbed or absorbed on the sewing thread, which then react with the gas to form functional (reactive) groups.
  • a reactive gas is preferably understood to mean O2, N2O, O3, CO2, NH3, SO2, SiCl4, CCl4, CF3Cl, CF4, SF6, CO, hexamethyldisiloxane and / or H2.
  • Inert gas means nitrogen and / or at least one noble gas.
  • the aforementioned gases (reactive gas and inert gas) can be used both as individual gases and as a gas mixture be applied.
  • the aramid fibers or polyalkylene fibers, in particular polypropylene fibers, which are very difficult and expensive to dye, could be easily and easily dyed with ionic dyes or reactive dyes with appropriate treatment.
  • Monomers and / or oligomers which are used in the process according to the invention have already been mentioned several times. These monomers or oligomers are described in more detail below with regard to their chemical basis.
  • a first embodiment of the process according to the invention provides that monomers and / or oligomers are used which are based on hydrocarbons or hydrocarbon derivatives.
  • This preferably includes alkylenes, in particular ethylene, propylene, isobutylene, butadiene, isoprene, methylstyrene, xylyenes and halogen derivatives of the compounds mentioned above, in particular vinyl chloride, vinylidene chloride, tetrafluroethylene, trifluorethylene, Vinyl fluoride, vinylidene fluoride, pentafluorostyrene, 2,2,3,3-tetrafluoropropyl methacrylate, and / or mixtures of the aforementioned compounds and in particular mixtures of tetrafluoroethylene / perfluoropropylene, tetrafluoroethylene / perfluoroalkyl vinyl ether, tetrafluoroethylene / ethylene, trifluorochloroethylene / ethylene and
  • substances which are based on acrylic acid, acrylic acid derivatives and / or salts thereof can also be selected in the process according to the invention. These include in particular methacrylates, ethyl acrylates, n-butyl acrylates, isobutyl acrylates, tert-butyl acrylates, hexyl acrylates, 2-ethylhexyl acrylates and lauryl acrylates.
  • these acrylates can be mixed with suitable compounds, such as, for example, methyl methacrylates, ethylene methacrylates, n-butyl methacrylates, acrylonitrile, styrene, 1,3-butadiene, vinyl acetate, vinyl propionate, vinyl chloride, vinylidene chloride, vinyl fluoride and / or vinylidene fluoride.
  • suitable compounds such as, for example, methyl methacrylates, ethylene methacrylates, n-butyl methacrylates, acrylonitrile, styrene, 1,3-butadiene, vinyl acetate, vinyl propionate, vinyl chloride, vinylidene chloride, vinyl fluoride and / or vinylidene fluoride.
  • acrylic acid derivatives are acrylic acid, methacrylic acid, acrylamide, acrylonitrile, methacrylamide and / or salts of the aforementioned two acids.
  • the monomers or oligomers listed above are added to those products which additionally have free functional groups.
  • Monomers containing carboxyl groups, in particular maleic acid and / or itaconic acid are particularly suitable for this purpose; monomers containing hydroxyl groups, such as in particular 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, hydroxypropyl acrylate, propylene glycol methacrylate and / or butanediol monoacrylate; N-hydroxymethyl group-containing monomers, such as in particular N-hydroxymethylacrylamide and / or N-hydroxymethylmethacrylamide; and / or sulfonic acid-containing monomers, in particular 2-acrylamino-2-methylpropanesulfonic acid.
  • Corresponding ethers in particular ethyl diglycol acrylate; Amines, especially tert-butylaminomethacrylate, dimethylaminoethyl acrylate, diethylaminoethyl methacrylate and / or diethylaminoethyl acrylate; Epoxies, especially glycidyl methacrylate; and / or monomers containing halogen hydroxyl groups, in particular 3-chloro-2-hydroxypropyl acrylate.
  • those products which comprise styrene and / or styrene derivatives are also suitable.
  • the mixtures of styrene and / or methylstyrene with acrylonitrile and / or of styrene and / or methylstyrene with butadiene should be mentioned in particular.
  • those monomers or oligomers which have organosilicon compounds can be selected in the process according to the invention. This is then preferably in the silicone, which accordingly has one or more organic radicals on the silicon atom which can be oligomerized or polymerized by radical and / or ionic means. Organic residues which have terminal C-C double bonds are particularly suitable for this purpose.
  • these monomers or oligomers can be applied to the sewing thread in concentrated form or as a solution, dispersion or emulsion according to the techniques known per se.
  • a particularly suitable embodiment provides that the monomers or oligomers are dissolved, emulsified and / or dispersed in an aqueous system and the sewing thread is impregnated with this solution, emulsion and / or dispersion in that the solution, dispersion or emulsion through a winding body, preferably a package, pumps the sewing thread.
  • the treatment which leads to the formation of the corresponding ions or radicals is then carried out.
  • a particularly suitable embodiment of the process variant described above provides that the initiator described above is added to the solution, emulsion or dispersion of the monomers or oligomers, so that the initiator is applied to the sewing thread together with the corresponding solution, dispersion or emulsion .
  • the application amount of the aforementioned monomers or oligomers varies depending on the desired properties of the sewing thread produced by the method according to the invention.
  • the amount applied in the process according to the invention usually varies between about 0.01% by weight to about 20% by weight, in particular between 0.5% by weight and 10% by weight (mass of the monomers or oligomers: mass of the sewing thread).
  • the present invention further relates to a sewing thread which has a particularly high abrasion resistance under mechanical stress, caused during processing or when using the sewing thread.
  • a sewing thread in particular a sewing thread containing synthetic fibers, is thus described which has equipment predominantly provided on the thread surface, as a result of which the thread properties are changed in a targeted manner.
  • this equipment is chemically bound to the fiber polymer forming the sewing thread.
  • the sewing thread according to the invention has a number of advantages. It was thus found that equipment chemically bonded to the yarn material in this way is particularly permanently and firmly attached to the yarn material. This applies in particular to those embodiments of the sewing thread according to the invention in which the finish is bound to the polymer of the thread via a covalent bond, as described above. Such chemically linked equipment is then only possible by destroying this covalent bond or the polymer chains forming the yarn material.
  • the selection of the respective equipment is based. If, for example, the dyeing behavior of such synthetic yarn materials that are difficult to dye at home is to be improved, it is sufficient to chemically bind rather short-chain equipment to the yarn material, which, however, is characterized by a large number of functional groups. These additional functional groups chemically bonded to the yarn material then enable the corresponding yarns to be dyed with relatively little effort, for example using ionic dyes.
  • Such equipment is preferred, for example, for polyalkylene fibers or the relatively difficult to dye aromatic polyamides.
  • the sewing thread according to the invention is to be protected, for example, against extreme stresses caused by chemical or mechanical influences
  • such a sewing thread in particular has high molecular weight equipment
  • the molecular weight of such equipment preferably varying between 1,500 and 180,000, in particular between 20,000 and 80,000.
  • these finishings can then also be three-dimensionally networked with one another, so that a corresponding solid and / or liquid coating results on the surface of the sewing thread, which surrounds the outer layer of the yarn and thus prevents it, that the stresses described above attack the actual yarn material, ie the polymer chains forming the yarn.
  • the products used for such crosslinking have already been described in detail above in the process.
  • the number of copies of the equipment in the sewing thread according to the invention also depends on the desired change in properties.
  • the number of copies of the equipment usually varies between 0.01% by weight and 20% by weight, preferably between 0.5% by weight and 10% by weight, as already described above.
  • the layer thickness of the equipment chemically bound to the thread material also varies depending on the desired changes in properties of the sewing thread used. For example, it is possible to provide the equipment only selectively on the surface of the sewing thread, so that such equipment, which is, for example, the equipment described above for improving the dyeing behavior, does not form a closed layer on the surface of the thread.
  • polymeric equipment in particular the equipment produced by the processes described above by oligomerization or polymerization, usually cover the surface of the sewing thread according to the invention with a closed or almost closed solid or liquid layer, this layer the sewing thread according to the invention is coated on the outside and preferably has a layer thickness between 100 nm and approximately 0.1 nm, in particular between approximately 20 nm and approximately 2 nm.
  • the sewing thread according to the invention has an equipment which is bound to the polymeric chains of the thread material via an ionic or preferably via a covalent chemical bond.
  • the first option includes, in particular, those sewing threads which consist of polyamide 6, polyamide 6.6, modified polyacrylonitrile and / or cellulose acetate fibers or filament fibers or contain these fibers or filaments.
  • the polymers mentioned above already have appropriate functional groups, such as, in particular, NH2, OH and / or COOH groups.
  • polymer-specific groups can then react with the equipment itself or with the corresponding monomers and / or oligomers which are applied to the sewing thread and then oligomerize or polymerize for equipment, with the formation of the appropriate chemical bond and fixation of the equipment to the thread material, so that in such an embodiment of the sewing thread according to the invention the chemical attachment of the equipment is either ionic or in particular covalent via appropriate amide and / or ester groups.
  • the polymers forming the sewing thread do not have such reactive centers for binding the monomers, oligomers and / or equipment, so that it is necessary to first of all assign such reactive centers, in particular on the surface of the sewing thread produce.
  • This can be achieved in particular by preferably splitting the polymer chains of the yarn material present on the surface of the sewing thread in the manner described above in the process according to the invention and thus creating reactive centers which either have correspondingly functional (reactive) groups, such as OH , COOH and / or NH2 groups, or from which the aforementioned functional groups are produced.
  • the sewing thread then has a chemically bound finish based on oligomers and / or polymers, hydrocarbons, hydrocarbon copolymers, Hydrocarbon co-oligomers, hydrocarbon mixed oligomers, hydrocarbon mixed polymers and / or derivatives of these compounds.
  • the sewing thread according to the invention can have oligomeric and / or polymeric compounds of acrylic acid, acrylic acid cooligomerisates, acrylic acid copolymers, acrylic acid mixed oligomerisates, acrylic acid mixed polymers and / or the salts and / or derivatives of the aforementioned compounds as chemically bonded finishing.
  • the sewing thread according to the invention can contain oligomeric and / or polymeric compounds of styrene, its derivatives, styrene co-oligomerates, styrene copolymers, styrene mixed oligomerisates, styrene mixed polymers and / or salts and / or derivatives thereof. Furthermore, there is the possibility that the sewing thread according to the invention contains oligomeric or polymeric organosilicon compounds in addition to the aforementioned compounds or instead of the aforementioned compounds.
  • any synthetic sewing thread e.g. made of polyamide, polypropylene, Nomex, glass, polyacrylonitrile, carbon fibers and / or ceramic fibers.
  • a polyester sewing thread or a polyester-containing sewing thread is used as the sewing thread.
  • these sewing threads have the usual sewing thread construction, i.e. these are chore yarns, multifilament yarns or filament / fiber yarns, which can be twisted if necessary.
  • these sewing threads can have the construction of a swirled thread or a wound thread known per se, whereby the titer of the above-mentioned sewing threads is of the order of magnitude between 50 dtex x 2 (total titer 100 dtex) and 1,200 dtex x 3 (total titer 3,600 dtex).
  • a polyester sewing yarn Nm 25/2 core was first treated with a 2% sodium hydroxide solution for 15 minutes at 98 o C. This resulted in swelling and an improvement in the accessibility of the surface.
  • the sewing thread was then rinsed with water.
  • the sewing thread pretreated in this way was then impregnated with a 1 M potassium persulfate solution (liquor pick-up 100% by weight) and heated to a temperature of about 80 ° C. under nitrogen.
  • the sewing thread was then introduced into an aqueous emulsion which contains anionic surfactants based on alkyl sulfates and a mixture of isobutyl acrylate, styrene and acrylic acid as an emulsifier.
  • the sewing thread was then squeezed to a liquor pick-up of 100% by weight and stored under nitrogen at 40 ° C. for 5 minutes.
  • Example 1 The sewing thread mentioned in Example 1 was subjected to a low-temperature plasma treatment in a nitrogen atmosphere, the conditions of the low-temperature plasma treatment being as follows: Pressure before the low-temperature plasma treatment: 5 Pa Frequency: 13.56 MHz Power density: 8 W / dm3 Pressure curve during plasma treatment: Figure 1 Duration of the first and second treatment period: 30 seconds each Total treatment time: 4 minutes Gas: nitrogen
  • the yarn was then treated with the emulsion described above under nitrogen and processed further as described in Example 1.
  • the sewing behavior of this sewing thread was also examined.
  • the cheese was then rinsed with water. Thereafter, the cheese was treated with a 1 M potassium persulfate solution at room temperature for 4 minutes.
  • Example 2 Thereafter, a low-temperature plasma treatment was carried out under the conditions shown in Example 2, but deviating from this, the pressure was 20 Pa, the power density was 25 W / dm 3 and the total treatment time was 6 minutes. Oxygen was used as the gas during this treatment.
  • the cheese was rinsed in an alkaline medium (pH: 8) after the low-temperature plasma treatment. After adding 0.5% sodium acetate and 1% acetic acid and 10% sodium sulfate, the cheese was colored with a cationic dye (2%, type: Astrazon).
  • the spool was unwound and samples were taken from the inner, middle and outer layers. It should be noted that there were no differences between the three layers, either visually or colorimetrically, neither in terms of color depth nor in color. The usual wet fastness properties were also measured. Neither the rub fastness nor the perspiration fastness and the water fastness (heavy duty) were objectionable. Comparative strength measurements of the three layers showed that there was a loss of strength of 5% compared to the starting material, while the three layers had the same strengths within each other within the fault tolerance.
  • a polyester sewing yarn Nm 25/2 was treated first with a 2% sodium hydroxide solution at 98 o C for 15 minutes. This resulted in swelling and improved accessibility to the amorphous areas of the yarn polymers.
  • the sewing thread was then rinsed with water.
  • the sewing thread pretreated in this way was then impregnated with a 1 molar potassium persulfate solution / 1 molar sodium hyposulfite solution and at the same time with an emulsion consisting of acrylic acid and isobutyl acrylate, the liquor absorption being 100% by weight.
  • the emulsion contained an anionic surfactant based on alkyl sulfates as an emulsifier.
  • the Inticiangntechnik and subsequent heating at 70 o C for 3 minutes was done under nitrogen.
  • sewing thread 4 The sewing thread was then rinsed with water and dried conventionally. The sewing thread thus equipped was called sewing thread 4.
  • the sewing thread was then impregnated with a solution or emulsion which differed from the emulsion described above in that it additionally contained maleic acid. Otherwise, the impregnation conditions and the temperature during heating corresponded to Example 4.
  • sewing thread 5 The sewing thread treated in this way was referred to as sewing thread 5.
  • This table also shows that even more buttonholes can be sewn with sewing thread 6 than with sewing thread 4 and 5.
  • a polyester multifilament yarn Nm 35 was opened as a bobbin (1 kg).
  • a further cheese was also flowed through in a conventional dyeing apparatus with an aqueous dispersion of 12 g / l of dibenzoyl peroxide for 10 minutes at room temperature.
  • a third cross-wound bobbin was flowed through in a conventional dyeing apparatus with an aqueous dispersion of 12 g / l azodiisobutyronitride for 10 minutes at room temperature.
  • the three coils mentioned above were impregnated with acrylic acid after careful drying.
  • the bobbins were rewound and the acrylic acid was continuously applied to the yarn, resulting in a concentration of acrylic acid on the yarn of 0.5% by weight.
  • the coils were then subjected to a low-temperature plasma treatment under the following conditions: Pressure during low-temperature plasma treatment: 60 Pa Frequency: 2.45 GHz Power: 60 W. Pressure history: constant 60 Pa Total duration of treatment: 6 minutes Gas: nitrogen
  • the coils were dyed in a conventional manner on a conventional dyeing machine with a two percent solution of an ionic dye (astrazon brilliant red).
EP19910122297 1990-12-27 1991-12-27 Process for the production of a sewing thread with a finishing agent Withdrawn EP0496117A3 (en)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
DE4041932 1990-12-27
DE4041931 1990-12-27
DE4041931 1990-12-27
DE4041932 1990-12-27
DE4100785A DE4100785C2 (de) 1990-12-27 1991-01-12 Verfahren zur Ausrüstung eines Nähgarnes
DE4100786A DE4100786C2 (de) 1990-12-27 1991-01-12 Garn mit einer auf der Oberfläche vorgesehenen Ausrüstung
DE4100785 1991-01-12
DE4100786 1991-01-12
DE19914100787 DE4100787C2 (de) 1991-01-12 1991-01-12 Verfahren zur Niedertemperatur-Plasmabehandlung oder Corona-Behandlung eines textilen Substrates
DE4100787 1991-01-12

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EP0496117A2 true EP0496117A2 (fr) 1992-07-29
EP0496117A3 EP0496117A3 (en) 1993-05-12

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EP19910122297 Withdrawn EP0496117A3 (en) 1990-12-27 1991-12-27 Process for the production of a sewing thread with a finishing agent

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AT (1) ATE141348T1 (fr)
CS (1) CS408191A3 (fr)
TR (1) TR27697A (fr)

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EP0492649A2 (fr) * 1990-12-27 1992-07-01 Amann & Söhne GmbH & Co. Procédé pour modifier les propriétés d'un substrat textile
EP0598195A1 (fr) * 1992-09-12 1994-05-25 Amann & Söhne GmbH & Co. Procédé et dispositif pour le traitement d'une structure filée
WO1994024358A2 (fr) * 1993-04-21 1994-10-27 Tecnit Ag Procede d'enrobage de fils et de fibres dans des objets textiles
EP0686723A2 (fr) * 1994-05-27 1995-12-13 AMLER, Werner Fil à coudre
WO1996019603A2 (fr) * 1994-12-21 1996-06-27 Werner Amler Fil a coudre, notamment fil texture
WO1997039838A1 (fr) * 1996-04-23 1997-10-30 Katoot Mohammad W Procede et composition permettant de modifier la surface d'un objet par polymerisation avec greffage
US6242041B1 (en) 1997-11-10 2001-06-05 Mohammad W. Katoot Method and composition for modifying the surface of an object
US6436484B1 (en) 1997-12-09 2002-08-20 Coats American, Inc. Processes for coating sewing thread
CN101922070A (zh) * 2009-06-16 2010-12-22 亚曼泽恩有限责任两合公司 纱线,特别是缝纫或刺绣纱线

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DE4223853A1 (de) * 1992-07-20 1994-01-27 Gerd Ebert Nähfaden, Verfahren zur Herstellung von aufreißfesten Kettenstichnähten sowie Kettenstichnaht
DE4230149A1 (de) * 1992-09-09 1994-03-17 Heraeus Noblelight Gmbh Verfahren zur Herstellung von oxydischen Schutzschichten
IL110454A (en) * 1993-08-07 1997-07-13 Akzo Nobel Nv Process for plasma treatment of antiballistically effective materials
US5972039A (en) * 1997-04-07 1999-10-26 Isolsyer Company, Inc. Increased absorbency and hand-feel fabrics
GB9715508D0 (en) * 1997-07-24 1997-10-01 Scapa Group Plc Industrial fabrics and method of treatment
US6146462A (en) * 1998-05-08 2000-11-14 Astenjohnson, Inc. Structures and components thereof having a desired surface characteristic together with methods and apparatuses for producing the same
DE10019816A1 (de) * 2000-04-20 2001-10-31 Asten Ag Eupen Verfahren zur Beschichtung eines Garns sowie dadurch hergestelltes textiles Flächengebilde
EP1377709B1 (fr) * 2001-04-04 2013-09-11 Healthtex Apparel Corp. Fibres de coton a greffe polymere ameliorees et produits associes
US6645255B2 (en) 2001-04-04 2003-11-11 Healthtex Apparel Corp. Polymer-grafted stretchable cotton
ITMI20051577A1 (it) * 2005-08-12 2007-02-13 Mascioni Spa Procedimento di stampa e finissaggio su tessuti contenenti parzialmente o totalmente fibra aradimica in forma di filamento e-o fiocco
CN112337463B (zh) * 2020-10-22 2023-03-21 常熟理工学院 一种利用无纺布废布制备金载碳布的方法

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EP0251314A2 (fr) * 1986-07-01 1988-01-07 Mitsubishi Petrochemical Co., Ltd. Procédé pour la préparation de matériaux absorbants de l'eau

Cited By (17)

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Publication number Priority date Publication date Assignee Title
EP0492649B1 (fr) * 1990-12-27 1996-08-14 Amann & Söhne GmbH & Co. Procédé pour modifier les propriétés d'un substrat textile
EP0492649A2 (fr) * 1990-12-27 1992-07-01 Amann & Söhne GmbH & Co. Procédé pour modifier les propriétés d'un substrat textile
EP0598195A1 (fr) * 1992-09-12 1994-05-25 Amann & Söhne GmbH & Co. Procédé et dispositif pour le traitement d'une structure filée
WO1994024358A2 (fr) * 1993-04-21 1994-10-27 Tecnit Ag Procede d'enrobage de fils et de fibres dans des objets textiles
WO1994024358A3 (fr) * 1993-04-21 1994-12-08 Tecnit Ag Procede d'enrobage de fils et de fibres dans des objets textiles
EP0686723A3 (fr) * 1994-05-27 1997-07-02 Werner Amler Fil à coudre
EP0686723A2 (fr) * 1994-05-27 1995-12-13 AMLER, Werner Fil à coudre
WO1996019603A2 (fr) * 1994-12-21 1996-06-27 Werner Amler Fil a coudre, notamment fil texture
WO1996019603A3 (fr) * 1994-12-21 1996-08-22 Werner Amler Fil a coudre, notamment fil texture
CN1097646C (zh) * 1994-12-21 2003-01-01 维尔纳·阿姆勒 缝纫线,尤其是膨化线
WO1997039838A1 (fr) * 1996-04-23 1997-10-30 Katoot Mohammad W Procede et composition permettant de modifier la surface d'un objet par polymerisation avec greffage
US6242041B1 (en) 1997-11-10 2001-06-05 Mohammad W. Katoot Method and composition for modifying the surface of an object
US6436484B1 (en) 1997-12-09 2002-08-20 Coats American, Inc. Processes for coating sewing thread
US6828023B2 (en) 1997-12-09 2004-12-07 Coats American, Inc. Coated sewing thread
CN101922070A (zh) * 2009-06-16 2010-12-22 亚曼泽恩有限责任两合公司 纱线,特别是缝纫或刺绣纱线
EP2264234A1 (fr) * 2009-06-16 2010-12-22 Amann & Söhne GmbH & Co. KG Fil, notamment fil à coudre ou à broder
CN101922070B (zh) * 2009-06-16 2014-12-24 亚曼泽恩有限责任两合公司 纱线,特别是缝纫或刺绣纱线

Also Published As

Publication number Publication date
ATE141348T1 (de) 1996-08-15
TR27697A (tr) 1995-06-19
EP0492649B1 (fr) 1996-08-14
EP0492649A2 (fr) 1992-07-01
CS408191A3 (en) 1992-09-16
EP0496117A3 (en) 1993-05-12
EP0492649A3 (en) 1993-05-19

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