EP1330563B1 - Procede de filage et d'enroulement de filaments polyester, des filaments polyester obtenus par ce procede de filage, etirage-texturation des filaments polyester et filaments polyester textures obtenus par etirage-texturation - Google Patents

Procede de filage et d'enroulement de filaments polyester, des filaments polyester obtenus par ce procede de filage, etirage-texturation des filaments polyester et filaments polyester textures obtenus par etirage-texturation Download PDF

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Publication number
EP1330563B1
EP1330563B1 EP01992806A EP01992806A EP1330563B1 EP 1330563 B1 EP1330563 B1 EP 1330563B1 EP 01992806 A EP01992806 A EP 01992806A EP 01992806 A EP01992806 A EP 01992806A EP 1330563 B1 EP1330563 B1 EP 1330563B1
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EP
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Prior art keywords
filaments
polyester
dtex
ptmt
filament
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German (de)
English (en)
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EP1330563A1 (fr
Inventor
Dietmar Wandel
Achim Dulling
Ulrich Mirwaldt
Alexander Klein
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LL Plant Engineering AG
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ZiAG Plant Engineering GmbH
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters

Definitions

  • the present invention relates to methods for spinning and winding of Preoriented polyester filaments, which are based on at least 90 wt .-% the total weight of the polybutylene terephthalate (PBT) polyester filament and / or polytrimethylene terephthalate (PTMT), preferably from PTMT, and the preoriented polyester filaments obtainable by the process. Furthermore, the present invention also relates to Process for stretch texturing the spun and wound polyester filaments and the bulky ones obtainable by stretch texturing Polyester filaments.
  • PBT polybutylene terephthalate
  • PTMT polytrimethylene terephthalate
  • polyester filaments in particular of Polyethylene terephthalate (PET) filaments
  • PET Polyethylene terephthalate
  • PET and PBT or PTMT are due to structural and Attribute differences, such as those in Chemical Fibers Int., P. 53, vol. 50 (2000) and theme on the 39th Int. Man made Fiber Congress, from 13 to 15 Sept. in Dombim. So will assume that different chain formations for the Property differences are responsible.
  • WHERE 99/27168 discloses a polyester fiber comprising at least 90% by weight Polytrimethylene terephthalate and a boiling shrinkage between 5% and 16% and an elongation at break of 20% to 60%.
  • the production of in WO 99/27168 described polyester fiber is made by spinning and Stretching. This spin spinning speeds of at most 2100 m / min specified. The procedure is due to the low Spinning speed uneconomical.
  • the obtained Polyester fibers, as the indicated figures show, strongly crystalline and thus only partially suitable for draw texturing.
  • European patent EP 0,731,196 B1 claims a method for spinning, Stretching and winding a synthetic thread, with the thread after the stretching and before winding to reduce the Shrinkage is subjected to a heat treatment.
  • usable Synthetic fibers also include polytrimethylene terephthalate fibers.
  • the heat treatment is carried out in that the synthetic Thread in close proximity but substantially without contact along an elongated heating surface is performed.
  • the application of a Heat treatment makes the process more expensive and also supplies synthetic threads with high crystallinity, which are only partially suitable for draw texturing.
  • the tensile strength of the Polytrimethylene terephthalate fibers is 26.5 cN / tex (Texturing speed of 450 m / min) or 29.15 cN / tex (Texturing speed of 850 m / min) and the elongation at break of 38.0% (Texturing speed of 450 m / min) or 33.5% (Texturing speed of 850 m / min) specified.
  • Figure 1 describes the change in boiling shrinkage for three PTMT-POY coils depending on the storage time under normal climatic conditions. in this connection was the change in the POY cooking shrinkage for three coils with different initial value over the storage time at normal Climatic conditions examined.
  • the spools No. 16 and 17 with high Initial value> 40% show after 4 weeks a boiling shrinkage above 30%, preferably above 40%. If the initial value of the boiling shrinkage However, less than 40%, so the coil 18 shows that this after 4 weeks Storage time, however, falls below the critical value of 30%.
  • FIG. 2 schematically shows force-strain diagrams of PTMT-POY same elongation at break
  • Figure 2a) shows a diagram according to the invention a natural draw ratio (NVV) equal to or greater than 15%
  • the shrinkage is a measure of the processability and the Degree of crystallization of the fibers.
  • the fibers described in WO 01/04393 have Plastics with a higher degree of crystallization, which is essential worse and only at lower draw ratio and / or lower Process the texturing speed.
  • the object of the present invention to provide a method for spinning and winding pre-oriented polyester filaments consisting of at least 90% by weight, based on the total weight of the PBT and / or PTMT filaments to provide, which allows the production and winding of pre-oriented polyester filaments in a simple manner.
  • the polyester preoriented filaments should have elongation at break values in the range of 90% -165%, a high uniformity in filament characteristics and a low degree of crystallinity.
  • Another object of the present invention was to provide a method for spinning and winding of pre-oriented polyester filaments, which is industrially and inexpensively feasible.
  • the method according to the invention should allow as high take-off speeds, preferably greater than 2200 m / min and high thread weights on the bobbin of more than 4 kg.
  • the pre-oriented polyester filaments should be simple and manner in a stretch texturing process, especially at high Texturing speeds, preferably greater than 450 m / min, further processed can be.
  • the filaments obtainable by stretch texturing should have excellent material properties, for. B. a high tensile strength of more than 26 cN / tex and a high elongation at break of more than 30% for HE filaments or more than 36% for SET filaments.
  • the present invention relates to a process for the production and for winding preoriented polyester filaments which are at least 90 Wt .-% based on the total weight of the filament
  • Polybutylene terephthalate (PBT) and / or polytrimethylene terephthalate (PTMT) consist.
  • Polybutylene terephthalate (PBT) and / or polytrimethylene terephthalate (PTMT) are known in the art.
  • Polybutylene terephthalate can by Polycondensation of terephthalic acid with equimolar amounts of 1,4-butanediol, Polytrimethylene terephthalate by polycondensation of Terephthalic acid with equimolar amounts of 1,3-propanediol can be obtained. Also mixtures of the two polyesters are conceivable. According to the invention preferred becomes PTMT.
  • the polyesters can be both homopolymers and copolymers.
  • copolymers In particular, those in question, in addition to recurrent PTMT and / or PBT units still up to 15 mol% based on all Repeating units of polyester repeating units more usual Comonomers, such as.
  • polyester homopolymers prefers.
  • the polyesters according to the invention can be customary amounts other additives than admixtures, such as catalysts, stabilizers, Antistatic agents, antioxidants, flame retardants, dyes, dye-uptake modifiers, Light stabilizers, organic phosphites, optical brighteners and Matting agents included.
  • the polyesters Preferably, contain 0 to 5 wt .-% based on the total weight of the filament of additives.
  • the polyesters can also a small proportion, preferably up to 0.5 wt .-% based on the total weight of the filament, on Branching components, included.
  • branching components include polyfunctional acids, such as Trimellitic acid, pyromellitic acid, or tri- to hexavalent alcohols, such as Trimethylolpropane, pentaerythritol, dipentaerythritol, glycerol, or the like Hydroxy acids.
  • polyesters are preferably thermoformable and can be spun into filaments and spooled become.
  • such polyesters are particularly advantageous, the one Intrinsic viscosity in the range of 0.70 dl / g to 0.95 dl / g.
  • the polyester by means of spinning pumps at a constant speed, the speed is set according to known formula, that the desired yarn titer is obtained, pressed into nozzle packages and through the nozzle holes of the nozzle plate of the package is extruded into molten filaments.
  • the melt can be made for example in an extruder of polymer chips are, where it is particularly favorable, the chips previously on a water content ⁇ 30 ppm, in particular to a water content of ⁇ 15 ppm.
  • the specified parameters serve to limit the hydrolytic and / or thermal viscosity degradation, the expediently as possible should be low.
  • a viscosity reduction less than 0.12 dl / g, in particular less than 0.08 dl / g, desirable.
  • the homogeneity of the melt has a direct influence on the Material properties of the spun filaments.
  • a static mixer with at least one element, which after the Spinning pump is installed, for homogenization of the melt.
  • the temperature dependent on the spinning temperature of the nozzle plate is through regulated their so-called heat tracing.
  • Come as a heat For example, a "Diphyl" heated spinning beam or additional Convection or radiant heater in question.
  • the temperature is the nozzle plates at the level of spinning temperature.
  • An increase in temperature at the nozzle plate can be due to the pressure gradient in the Nozzle package can be achieved.
  • Known derivations such as K. Riggert "Advances in the Production of Polyester Tire Cord Yarn” Chemical Fibers 21, Page 379 (1971) describe a temperature increase of about 4 ° C per 100 bar pressure drop.
  • nozzle pressure by using loose filter media, in particular of steel sand with a mean grain size between 0.10 mm and 1.2 mm, preferably between 0.12 mm and 0.75 mm and / or filter blanks, the made of metal fabrics or non-wovens with a fineness ⁇ 40 ⁇ can control.
  • loose filter media in particular of steel sand with a mean grain size between 0.10 mm and 1.2 mm, preferably between 0.12 mm and 0.75 mm and / or filter blanks, the made of metal fabrics or non-wovens with a fineness ⁇ 40 ⁇ can control.
  • the pressure drop in the nozzle hole contributes to the total pressure.
  • the Nozzle pressure is preferably between 80 bar and 450 bar, in particular set between 100 bar and 250 bar.
  • the spinning delay is between 70 and 500, preferably between 100 and 250.
  • the length / diameter ratio of the nozzle hole is preferably between 1.5 and 6 selected, in particular between 1.5 and 4.
  • the extruded filaments pass through a cooling delay zone. Directly below the nozzle package this is formed as a return zone, in the emerging from the nozzle holes filaments before the direct action the cooling gas to be stored and delayed in delay or cooling.
  • An active part of the return is as an offset of the nozzle package in the Spinning beam carried out so that the filaments of heated walls are surrounded.
  • a passive part is through insulation layers and unheated Frame formed. The lengths of the active return are between 0 and 100 mm, that of the passive part between 20 to 120 mm, with a total length of 30 - 200 mm, preferably 30 - 120 mm is maintained.
  • this zone of cylindrical or rectangular cross section at least a heating independent of the spinning beam
  • the filaments are at temperatures below their Solidification temperature cooled.
  • the Solidification temperature is the temperature at which the melt in the solid State of aggregation passes.
  • Means for cooling the filaments are those skilled in the art from the Technique known.
  • the use has proven particularly useful according to the invention of cooling gases, in particular cooled air.
  • the cooling air points preferably a temperature of 12 ° C to 35 ° C, especially 16 ° C to 26 ° C. on.
  • the speed of the cooling air is advantageously in the range of 0.20 m / sec to 0.55 m / sec.
  • monofilament systems can be used to cool the filaments used, consisting of individual cooling tubes with perforated wall consist. Through active cooling air supply or by using the Self-priming effect of the filaments becomes a cooling each achieved single filament.
  • Alternative to the single tubes are also the known Querstromanblasungssysteme used.
  • suitable distance of the bundling of the nozzle bottom can by methods known to those skilled in the art for online measurement of Thread speed and / or thread temperature, for example with a Laser Doppler anemometer from TSI / D or an infrared camera of the company Manufacturer Goratec / D type IRRIS 160, to be determined.
  • He is 500 to 2500 mm, preferably 500 to 1800 mm.
  • This filaments are with a Titer ⁇ 3.5 dtex, preferably at a smaller distance ⁇ 1500 mm, thicker Filaments are preferably bundled at a greater distance.
  • the bundling of the filaments takes place in an oiler stone, the thread the the desired amount of spin finish uniformly.
  • a special suitable ⁇ lerstein is characterized by an inlet part, the thread channel with oil inlet opening and the outlet part.
  • the inlet part is funnel-shaped extended so that contact with the still-dry filaments avoided becomes.
  • the impact point of the filaments takes place within the thread channel the inflow of the preparation.
  • Thread channel and oil inlet opening are in the Width adapted to the thread titer and the number of filaments. Particularly well proven have openings and widths in the range of 1.0 mm to 4.0 mm.
  • the Outlet part of the oiler is designed as a homogenization distance, the preferably has oil reservoirs.
  • Such oilers can, for example, from the Company Cermatec / D or Goulston / USA.
  • the uniformity of the oil application can according to the invention of great importance be. It can, for example, with a Rossa meter according to the in Chemical fibers / textile industry, 42./94, Nov. 1992 on page 896 described Method to be determined.
  • a Rossa meter according to the in Chemical fibers / textile industry, 42./94, Nov. 1992 on page 896 described Method to be determined.
  • Particular preference is given to values for the standard deviation of the oil application less than 45 digits, in particular less than 30 digits. there corresponds to a value for the standard deviation of 90 digits or 45 digits about 6.2% and 3.1% of the coefficient of variation, respectively.
  • an entangling is particularly preferred before being wound up Thread.
  • nozzles with closed yarn channels as special proved suitable, since in such systems entanglements of the thread in the Insertion slot avoided even with low thread tension and high air pressure become.
  • the Entanglingdüsen are preferably between godets arranged, wherein the exit thread tension by means of different Speed of the inlet and outlet galette is regulated. It should be .20 cN / dtex and primarily values between 0.05 cN / dtex and 0.15 cN / dtex.
  • the air pressure of Entanglingluft is between 0.5 and 5.5 bar, at winding speeds up to 3500 m / min at a maximum of 3.0 bar.
  • node numbers of at least 10 n / m are set. there are maximum opening lengths less than 100 cm and values for the Coefficients of variation of the number of nodes below 100% of particular Interest.
  • nodal numbers ⁇ 15 n / m achieved by a high uniformity characterized in that the coefficient of variation is less than or equal to 70% and the maximum opening length is 50 cm.
  • systems have become of the type LD of the company Temco / D, the double system of the company Slack & Parr / USA, or nozzles of the type Polyjet of Heberlein as proved particularly suitable.
  • the peripheral speed of the first godet unit is called Discharge speed called.
  • Other godet systems can be used be before the thread in the winding unit to winding bodies (coils) on Sleeves is wound up.
  • Stable, error-free filament wound bodies are a prerequisite for error-free removal of the thread and for as error-free as possible Further processing. Therefore, in the context of the present process, a Winding tension in the range of 0.025 cN / dtex - 0.15 cN / dtex, preferably in Range of 0.03 cN / dtex - 0.08 cN / dtex.
  • Thread tension before and between the withdrawal godets is this voltage essentially from the actual orientation voltage Hamana, the friction tension on the yarn guides and the oiler and the Thread-air friction tension together.
  • this voltage essentially from the actual orientation voltage Hamana, the friction tension on the yarn guides and the oiler and the Thread-air friction tension together.
  • the thread tension before and between the withdrawal godets in Range from 0.05 cN / dtex to 0.20 cN / dtex, preferably between 0.08 cN / dtex and 0.15 cN / dtex.
  • the tension is determined by the oiler distance from the nozzle, the Friction surfaces and the length of the distance between oiler and withdrawal godet regulated.
  • This route length is advantageously not more than 6.0 m, preferably less than 2.0 m, with the spinning and drawing machine are arranged by parallel construction such that a straight yarn path is guaranteed.
  • the geometric parameters also change the conditioning time of the thread between bundling point and Aufspulung described.
  • the fast-running Relaxation during this time affects the quality of the coil construction.
  • the conditioning time defined in this way is between 50 and 200 ms selected.
  • the winding speed of the POYs is between 2200 according to the invention m / min and 3500 m / min.
  • a temperature ⁇ 45 ° C especially between 12 and 35 ° C, and a relative humidity of 40 - 85% set.
  • the storage of the POY until further processing is preferred at a temperature ⁇ 45 ° C.
  • the POY coils at least 4 hours at 12 to 35 ° C and a relative humidity of 40-85% store before further processing.
  • normal conditions is known to those skilled in and over the Standard DIN 53802 defined. Under “normal conditions” according to DIN 53802 the temperature is 20 ⁇ 2 ° C and the relative humidity 65 ⁇ 2%.
  • preferred filaments have a natural one Draw ratio greater than or equal to 15%. Particularly preferred is this size ranges from 18 to 65%. The higher the natural Draw ratio is, the better the stretchability. At the same Elongation becomes higher at a high natural draw ratio Draw ratio achieved.
  • the natural draw ratio is defined as the plateau section in FIG Percent of the force-strain diagram. This size is known and will be published on Tear unit in one operation to determine strength and elongation determined.
  • FIGS. 2 a) and 2 b) show schematically the indicated parameter of FIG natural draw ratio (NVV), being the natural Draw ratio in Figure 2 b) is zero. It is stated in the diagrams each force versus elongation, with schematic diagrams shown are to explain the parameter in more detail.
  • NVM natural draw ratio
  • NVV NVV ⁇ 15% is incipient crystallization of the polyester.
  • Low NVV values are e.g. by thermal Treatment of the thread until winding with temperatures of at least 8 ° C above the glass transition temperature of the PES.
  • the intrinsic viscosity is in the capillary viscometer from Ubbelohde at 25 ° C and calculated according to known formula.
  • a solvent is a Mixture of phenol / 1,2-dichlorobenzene in the weight ratio 3: 2 used.
  • the Concentration of the solution is 0.5 g of polyester per 100 ml of solution.
  • the crystallization and the glass transition temperature a calorimeter DSC device from Mettler is used. Here is the Sample first heated to 280 ° C and melted and then quenched. The DSC measurement is carried out in the range of 20 ° C to 280 ° C with a heating rate of 10 K / min. The temperature variables are determined by the processor.
  • the determination of the density of filaments is carried out in a density-gradient column at a temperature of 23 ⁇ 0.1 ° C.
  • the reagent used is n-heptane (C 7 H 16 ) and tetrachloromethane (CCl 4 ).
  • the result of the density measurement can be used to calculate the degree of crystallinity, based on the density of the amorphous polyester D a and the density of the crystalline polyester D k .
  • the titer is known with a precision grape and a weighing device in Determined way.
  • the bias is suitably for Preoriented filaments (POYs) 0.05 cN / dtex and for textured yarn (DTY) 0.2 cN / dtex.
  • Tear strength and elongation at break are included in a Statimat meter the following conditions are determined; the clamping length is 200 mm for POY or 500 mm for DTY, the measuring speed is 2000 mm / min for POY or 1500 mm / min for DTY, the preload is 0.05 cN / dtex for POY or 0.2 cN / dtex for DTY. By dividing the values for the maximum breaking load the titer determines the tear strength and the elongation at break is added evaluated maximum load.
  • Strands of filaments are used to determine the boiling shrinkage de-energized in water at 95 ⁇ 1 ° C for 10 ⁇ 1 min.
  • the strands are tempered with a bias of 0.05 cN / dtex for POY or 0.2 cN / dtex for DTY produced; the length measurement of the strands before and after the temperature treatment takes place at 0.2 cN / dtex. From the Length difference is calculated in a known manner of boiling shrinkage.
  • the crimp characteristics of the textured filaments are in accordance with DIN 53840, Part 1 with the texturates of the company Stein / D at 120 ° C development temperature measured.
  • the normal Uster values are determined with the Uster tester 4-CX and as Uster% values indicated. It is at a test speed of 100 m / min the test time 2.5 min.
  • the POY according to the invention can be further processed in a simple manner, in particular stretch texturized.
  • the stretch texturing preferably takes place at a texturing speed of at least 500 m / min, more preferably in one Texturing speed of at least 700 m / min.
  • the draw ratio is preferably at least 1: 1.35, in particular at least 1: 1.40. It has become Stretch texturing on a high temperature heater type machine, such as For example, the AFK the company Barmag, proved to be particularly useful.
  • the bulky filaments thus produced have a low number Lint and after staining under cooking conditions at 95 ° C with a Dispersion dye (Terasil Navy Blue) without carrier an excellent color depth and color uniformity.
  • Bulky SET filaments produced according to the invention preferably have a tensile strength of more than 26 cN / tex and an elongation at break of more than 36%.
  • the tear strength is preferably more than 26 cN / tex and the elongation at break more than 30%.
  • PTMT chips with an intrinsic viscosity of 0.93 dl / g, a melt viscosity of 325 Pa s (measured at 2.4 Hz and 255 ° C), a melting point of 227 ° C, a crystallization temperature of 72 ° C and a glass transition temperature from 45 ° C were dried at a temperature of 130 ° C in a tumble dryer to a water content of 11 ppm.
  • the chips were melted in a Barmag 3E4 extruder so that the temperature of the melt was 255 ° C. It was then fed to the spin pump through a product line containing a Sulzer SMX 15-element static mixer with an inner diameter of 15 mm.
  • the transported amount of melt was 63 g / min with a residence time of 6 min, the amount added by the spin pump to the nozzle pack was 30.7 g / min.
  • an element static mixer, type HD-CSE with 10 mm inner diameter of Fluitec was installed.
  • the product line and spinner block heaters containing the pump and nozzle pack were set at 255 ° C.
  • the nozzle package contained steel sand with a grain size of 350-500 ⁇ m with a height of 30 mm and a 20 ⁇ m nonwoven and a 40 ⁇ m fabric filter as filter media.
  • the melt was extruded through a die plate of 80 mm diameter and 34 holes of 0.25 mm diameter and 1.0 mm length.
  • the nozzle pressure was 120 bar.
  • the cooling delay zone had a length of 100 mm, with 30 mm heated wall and 70 mm insulation and unheated frame were.
  • the Melt filaments were then subsequently in a blow shaft with Querstromanblasung a blow length of 1500 mm cooled.
  • the cooling air had a speed of 0.35 m / sec, a temperature of 18 ° C and a relative Humidity of 80%.
  • the solidification point of the filaments was at a distance of 800 mm below the spinneret.
  • the bundled thread was then fed to the winding machine.
  • the distance between oiler and first withdrawal godet was 3.2 m.
  • the conditioning time was depending on the speed 144 or 168 ms.
  • a pair of godets became S-shaped from the thread entwined.
  • Between the godets was a Temco Entangling nozzle installed, which was operated with an air pressure of 1.5 bar.
  • According to the Speed setting was the winding speed of the winder of the type SW6 of the company Barmag adjusted so that the Aufspilladenschreib 5 cN.
  • the indoor climate was at 24 ° C at 60% Relative humidity adjusted so that in the environment of the Filament winding set a temperature of about 34 ° C.
  • the take-off speed was either 2940 m / min (Example 1) or 2506 m / min (Example 2).
  • Table 1 shows the other experimental parameters, Table 2, the material properties of the resulting pre-oriented filaments (POYs) again. With both settings, coil weights of 10 kg could be produced and removed without problems from the winding spool of the winder.
  • the PTMT filament coils were exposed to normal climate for four weeks according to DIN 53802 and then a draw texturing machine from Barmag, type FK6-S-900, submitted.
  • the experimental parameters of stretch texturing for Production of so-called SET filaments are shown in Table 3, which Material properties of the resulting bulky SET filaments are in Table 4 summarized.
  • the bulk behavior can be varied.
  • the crimping then increases to about 47%.
  • the elongation at break then drops to 33%.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Claims (8)

  1. Procédé de fabrication et de bobinage de filaments de polyester pré-orientés qui se composent à au moins 90% en poids, par rapport au poids total du filament de polyester, de polybutylène téréphtalate (PBT) et/ou de polytriméthylène téréphtalate (PTMT), de préférence de PTMT, caractérisé en ce que
    a) l'étirage de filature est réglé dans la plage de 70 à 500,
    b) les filaments, directement après être sortis de la filière, passent dans une zone de retardement du refroidissement d'une longueur de 30 mm à 200 mm,
    c) les filaments sont refroidis en dessous de la température de solidification,
    d) les filaments sont empaquetés à une distance comprise entre 500 mm et 2500 mm du dessous de la filière,
    e) la tension du fil avant et entre les galettes de tirage est réglée à une valeur de 0,05 cN/dtex à 0,20 cN/dtex,
    f) le fil est bobiné sous une tension de fil comprise de 0,025 cN/dtex à 0,15 cN/dtex, et
    g) la vitesse de bobinage est réglée à une valeur entre 2200 m/min et 3500 m/min.
  2. Procédé selon la revendication 1, caractérisé en ce que l'on utilise du PBT et/ou du PTMT ayant un indice de viscosité limite dans la plage de 0,7 dl/g à 0,95 dl/g.
  3. Procédé selon la revendication 1 et/ou la revendication 2, caractérisé en ce que, lors du bobinage, on règle une température ≤45°C au voisinage de l'enroulement de fil.
  4. Procédé selon l'une au moins des revendications précédentes, caractérisé en ce que l'on stocke les bobines de filaments pré-orientés pendant au moins 4 heures à une température de 12 à 35°C et à un taux d'humidité relative de 40 à 85% avant la suite de leur transformation.
  5. Filaments de polyester pré-orientés susceptibles d'être obtenus par un procédé selon l'une au moins des revendications précédentes, caractérisés en ce que, après stockage pendant 4 semaines en conditions normalisées suivant DIN 53802, ils présentent
    a) un allongement à la rupture entre 90% et 165%,
    b) un retrait à la cuisson d'au moins 30%,
    c) une régularité Uster normale inférieure à 1,1 %,
    d) une biréfringence comprise entre 0,030 et 0,058,
    e) une densité inférieure à 1,35 g/cm3, de préférence inférieure à 1,33 g/cm3,
    f) un coefficient de variation de la contrainte de rupture ≤4,5%, et
    g) un coefficient de variation de l'allongement à la rupture ≤4,5%.
  6. Procédé de fabrication de filaments de polyester texturés, caractérisé en ce que l'on transforme des filaments selon la revendication 5 dans une machine de texturation par étirage à une vitesse d'au moins 500 m/min et selon un rapport d'étirage d'au moins 1:1,35 en un fil texturé.
  7. Filaments de polyester SET texturés susceptibles d'être obtenus par un procédé selon la revendication 6, caractérisés en ce que leur résistance à la traction est supérieure à 26 cN/tex et leur allongement à la rupture supérieur à 36%.
  8. Filaments de polyester HE texturés pouvant être obtenus par un procédé selon la revendication 6, caractérisés en ce que leur résistance à la traction est supérieure à 26 cN/tex et leur allongement à la rupture supérieur à 30%.
EP01992806A 2000-11-03 2001-11-02 Procede de filage et d'enroulement de filaments polyester, des filaments polyester obtenus par ce procede de filage, etirage-texturation des filaments polyester et filaments polyester textures obtenus par etirage-texturation Expired - Lifetime EP1330563B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10054422 2000-11-03
DE10054422 2000-11-03
PCT/EP2001/012683 WO2002036862A1 (fr) 2000-11-03 2001-11-02 Procede de filage et d'enroulement de filaments polyester, des filaments polyester obtenus par ce procede de filage, etirage-texturation des filaments polyester et filaments polyester textures obtenus par etirage-texturation

Publications (2)

Publication Number Publication Date
EP1330563A1 EP1330563A1 (fr) 2003-07-30
EP1330563B1 true EP1330563B1 (fr) 2005-03-23

Family

ID=7661977

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EP01992808A Expired - Lifetime EP1330564B1 (fr) 2000-11-03 2001-11-02 Procede pour filer et enrouler des filaments de polyester en utilisant des additifs de filage, filaments de polyester obtenus par ce procede de filage, texturation par etirage des filaments de polyester et filaments de polyester gonflants obtenus par cette texturation par etirage
EP01992806A Expired - Lifetime EP1330563B1 (fr) 2000-11-03 2001-11-02 Procede de filage et d'enroulement de filaments polyester, des filaments polyester obtenus par ce procede de filage, etirage-texturation des filaments polyester et filaments polyester textures obtenus par etirage-texturation

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Application Number Title Priority Date Filing Date
EP01992808A Expired - Lifetime EP1330564B1 (fr) 2000-11-03 2001-11-02 Procede pour filer et enrouler des filaments de polyester en utilisant des additifs de filage, filaments de polyester obtenus par ce procede de filage, texturation par etirage des filaments de polyester et filaments de polyester gonflants obtenus par cette texturation par etirage

Country Status (17)

Country Link
EP (2) EP1330564B1 (fr)
JP (2) JP2004513249A (fr)
KR (2) KR20030043790A (fr)
CN (2) CN1210449C (fr)
AT (2) ATE291651T1 (fr)
AU (2) AU2002215998A1 (fr)
BR (2) BR0113527A (fr)
CA (2) CA2405495A1 (fr)
DE (4) DE10151893A1 (fr)
EA (2) EA003951B1 (fr)
EG (2) EG23028A (fr)
ES (2) ES2236349T3 (fr)
HK (1) HK1054577B (fr)
MX (2) MXPA03001318A (fr)
MY (1) MY136398A (fr)
TW (2) TW589420B (fr)
WO (2) WO2002036864A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3910038B2 (ja) * 2001-10-18 2007-04-25 旭化成せんい株式会社 前配向糸パッケージとその製造方法
JP3862996B2 (ja) * 2001-10-31 2006-12-27 帝人ファイバー株式会社 ポリトリメチレンテレフタレートフィラメント糸およびその製造方法
KR20040094688A (ko) * 2002-02-12 2004-11-10 짐머 악티엔게젤샤프트 폴리에스테르 멀티필라멘트사의 제조 및 권사 방법과,상기 방법에 의해 수득가능한 폴리에스테르멀티필라멘트사 및 하나 이상의 멀티필라멘트사의 권사용장치
DE10213921B4 (de) * 2002-03-28 2006-10-12 Röhm Gmbh Verfahren zum Spinnen und Aufspulen von Polyester-Multifilament-Garnen unter Verwendung von Spinnadditiven sowie durch das Spinn-Verfahren erhältliche Polyester-Multifilament-Garne
TW200741049A (en) * 2005-12-27 2007-11-01 Shell Int Research Polyester yarn and process for producing
CN113481624B (zh) * 2021-06-24 2023-04-28 杭州惠丰化纤有限公司 一种涤纶丝及其生产工艺

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3975488A (en) * 1972-10-24 1976-08-17 Fiber Industries, Inc. Process for preparing poly(tetramethylene terephthalate) yarn
EP1002146B1 (fr) * 1997-08-05 2002-06-12 Röhm GmbH & Co. KG Procede de traitement de melanges polymeres pour former des filaments
JPH11172526A (ja) * 1997-11-26 1999-06-29 Asahi Chem Ind Co Ltd 低熱応力ポリエステル繊維及びその紡糸方法
JP3249097B2 (ja) * 1999-07-12 2002-01-21 旭化成株式会社 仮撚加工に適したポリエステル繊維及び製造方法
TW522179B (en) * 1999-07-12 2003-03-01 Asahi Chemical Ind Polyester yarn and producing method thereof
US6287688B1 (en) * 2000-03-03 2001-09-11 E. I. Du Pont De Nemours And Company Partially oriented poly(trimethylene terephthalate) yarn

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DE50105643D1 (de) 2005-04-21
EA003951B1 (ru) 2003-10-30
HK1054577A1 (en) 2003-12-05
EA200201194A1 (ru) 2003-04-24
EG23364A (en) 2005-02-28
EA200201196A1 (ru) 2003-06-26
EP1330564B1 (fr) 2005-03-16
CA2405495A1 (fr) 2002-10-07
MXPA03001319A (es) 2004-07-30
ES2237616T3 (es) 2005-08-01
AU2002215998A1 (en) 2002-05-15
AU2002224824A1 (en) 2002-05-15
EP1330563A1 (fr) 2003-07-30
KR20030061305A (ko) 2003-07-18
JP2004532356A (ja) 2004-10-21
KR100783124B1 (ko) 2007-12-07
DE10151893A1 (de) 2002-07-25
CA2405885A1 (fr) 2002-05-10
WO2002036864A1 (fr) 2002-05-10
CN1210449C (zh) 2005-07-13
CN1432079A (zh) 2003-07-23
EA003882B1 (ru) 2003-10-30
ES2236349T3 (es) 2005-07-16
WO2002036862A1 (fr) 2002-05-10
WO2002036862A8 (fr) 2003-11-27
HK1054577B (zh) 2005-08-05
TW589420B (en) 2004-06-01
DE50105726D1 (de) 2005-04-28
DE10151875A1 (de) 2002-08-29
MY136398A (en) 2008-09-30
KR20030043790A (ko) 2003-06-02
EP1330564A1 (fr) 2003-07-30
BR0113527A (pt) 2003-07-15
CN1432078A (zh) 2003-07-23
ATE291651T1 (de) 2005-04-15
BR0113515A (pt) 2003-07-15
JP2004513249A (ja) 2004-04-30
TW587108B (en) 2004-05-11
CN1210448C (zh) 2005-07-13
ATE291114T1 (de) 2005-04-15
EG23028A (en) 2004-01-31
MXPA03001318A (es) 2003-06-30

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