EP2078771B1 - Fil de polyester à fausse torsion et denier ultrafin de type âme-enveloppe antistatique, son procédé de production et tissus hydrofuges antistatiques comprenant le fil - Google Patents

Fil de polyester à fausse torsion et denier ultrafin de type âme-enveloppe antistatique, son procédé de production et tissus hydrofuges antistatiques comprenant le fil Download PDF

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Publication number
EP2078771B1
EP2078771B1 EP07831085A EP07831085A EP2078771B1 EP 2078771 B1 EP2078771 B1 EP 2078771B1 EP 07831085 A EP07831085 A EP 07831085A EP 07831085 A EP07831085 A EP 07831085A EP 2078771 B1 EP2078771 B1 EP 2078771B1
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EP
European Patent Office
Prior art keywords
false
core
polyester
antistatic
sheath type
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EP07831085A
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German (de)
English (en)
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EP2078771A4 (fr
EP2078771A1 (fr
Inventor
Suguru Nakajima
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Teijin Frontier Co Ltd
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Teijin Fibers Ltd
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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
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • 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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; Spinnerette packs therefor
    • 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
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/09—Addition of substances to the spinning solution or to the melt for making electroconductive or anti-static filaments
    • 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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
    • 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
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made

Definitions

  • the present invention relates to a core-sheath type polyester ultrafine false-twist textured yarn having antistatic property and method for producing the same, and an antistatic woven fabric containing the antistatic core-sheath type polyester ultrafine false-twist textured yarn. More specifically, the invention relates to a production method that can give stably a polyester ultrafine false-twist textured yarn of a core-sheath structure having antistatic property with excellent durability.
  • Polyester fiber is widely used for clothing application and the like due to excellent grade and stable physical properties thereof.
  • polyester is originally hydrophobic, in such a field that requires antistatic property, many attempts have been proposed to give hydrophilic property to polyester to allow it to express antistatic property.
  • a method of blending a polyoxyalkylene-based polyether compound to polyester JP-B-39-5214
  • a method of blending a substantially incompatible polyoxyalkylene-based polyether compound and organic/inorganic compound to polyester JP-B-44-31828 , JP-B-60-11944 , JP-A-53-80497 , JP-A-53-149247 , JP-A-60-39413 , JP-A-3-139556 and the like
  • Purposes of the present invention are to provide a core-sheath type polyester ultrafine false-twist textured yarn that can give a polyester textile that is excellent also in antistatic performance, while maintaining such performances as soft feeling, warmth-retaining property, water-absorbing property, hygroscopic property that belong to an ultrafine polyester false-twist textured yarn; and to provide a method for producing a core-sheath type polyester ultrafine false-twist textured yarn capable of producing stably the same.
  • the purpose of the invention could be achieved by melt spinning a core-sheath type polyester ultrafine composite filament, which was formed by covering a core component composed of polyester incorporated with a polyoxyalkylene-based polyether compound and organic ionic compound that are substantially incompatible with polyester with a sheath component, under a specified condition, and then drawing and false-twist texturing the resulting product.
  • Fig. 1 is an outline view of a simultaneous drawing and false-twist texturing machine for producing a false-twist textured yarn, which is used in the present invention, wherein 1 is an undrawn core-sheath type polyester yarn, 2 is a yarn guide, 3, 3' are feed rollers, 4, are interlace nozzles, 5 is a first stage heater, 6 is a cooling plate, 7 is a false-twisting tool (three-axis friction disc unit), 8 is first delivery rollers, 9 is a second stage heater, 10 is second delivery rollers, 11 is winding rollers, and 12 is a polyester false-twist textured yarn cheese.
  • 1 is an undrawn core-sheath type polyester yarn
  • 2 is a yarn guide
  • 3' are feed rollers
  • 4 are interlace nozzles
  • 5 is a first stage heater
  • 6 is a cooling plate
  • 7 is a false-twisting tool (three-axis friction disc unit)
  • 8 is first delivery rollers
  • Fig. 2 is a front view showing an embodiment of a false-twisting disc unit for use in the invention, wherein 13 is a false-twisting disc, 14 is a guide disc, 15 is a rotation axis, 16 is a timing belt, and 17 is a driving belt.
  • a polyester in the invention is intended to be an aromatic polyester having an aromatic ring in a chain unit in the polymer, which is a polymer obtained by the reaction of a bifunctional aromatic carboxylic acid or an ester-formable derivative thereof with a diol or an ester-formable derivative thereof.
  • bifunctional aromatic carboxylic acid examples include terephthalic acid, isophthalic acid, orthophthalic acid, 1,5-naphthalenedicarboxylic acid, 2,5-naphthalenedicarboxylic acid, 2,6-naphthalenedicarboxylic acid, 4,4'-biphenyldicarboxylic acid, 3,3'-biphenyldicarboxylic acid, 4,4'-biphenyletherdicarboxylic acid, 4,4'-biphenylmethanedicarboxylic acid, 4,4'-biphenylsulfonedicarboxylic acid, 4,4'-biphenylisopropylidenedicarboxylic acid, 1,2-bis(phenoxy)ethane-4,4'-dicarboxylic acid, 2,5-anthracenedicarboxylic acid, 2,6-anthracenedicarboxylic acid, 4,4'-p-phenylenedicarboxylic acid, 2, 5-pyridinedicar
  • bifunctional aromatic carboxylic acids may be used in combination of two or more kinds. Further, if only a small amount, one kind or two or more kinds in combination of a bifunctional aliphatic carboxylic acid such as adipic acid, azelaic acid, sebacic acid and dodecanedionic acid, a bifunctional alicyclic carboxylic acid such as cyclohexanedicarboxylic acid and 5-sodiumsulfoisophthalic acid may be used with these bifunctional aromatic carboxylic acids.
  • a bifunctional aliphatic carboxylic acid such as adipic acid, azelaic acid, sebacic acid and dodecanedionic acid
  • a bifunctional alicyclic carboxylic acid such as cyclohexanedicarboxylic acid and 5-sodiumsulfoisophthalic acid may be used with these bifunctional aromatic carboxylic acids.
  • the diol compound include aliphatic diols such as ethylene glycol, propylene glycol, butylene glycol, hexylene glycol, neopentyl glycol, 2-methyl-1,3-propane diol, diethylene glycol, trimethylene glycol, alicyclic diols such as 1,4-cyclohexane dimethanol, and mixtures thereof, and the like. Further, if only a small amount, a polyoxyalkylene glycol, of which both ends or one end has not been blocked, may be copolymerized with these diol compounds.
  • aliphatic diols such as ethylene glycol, propylene glycol, butylene glycol, hexylene glycol, neopentyl glycol, 2-methyl-1,3-propane diol, diethylene glycol, trimethylene glycol, alicyclic diols such as 1,4-cyclohexane dimethanol, and mixtures thereof, and the like.
  • polyester is substantially linear
  • polycarboxylic acids such as trimellitic acid and pyromellitic acid
  • polyols such as glycerin, trimethylolpropane and pentaerythritol may be used.
  • the preferable aromatic polyester include polyethylene terephthalate, polybutylene terephthalate, polyhexylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, polyethylene-1,2-bis(phenoxy)ethane-4,4'-dicarboxylate and the like, and in addition, copolymerized polyesters such as polyethylene isophthalate/terephthalate, polybutylene terephthalate/isophthalate and polybutylene terephthalate/decanedicarboxylate.
  • polyethylene terephthalate and polybutylene terephthalate that have balanced mechanical properties, molding properties and the like are particularly preferable.
  • Such aromatic polyesters may be synthesized by an arbitrary method.
  • polyethylene terephthalate can be easily produced through a first step reaction in which terephthalic acid and ethylene glycol are directly subjected to an esterification reaction, or a lower alkyl ester of terephthalic acid such as dimethyl terephthalate and ethylene glycol are subjected to an ester exchange reaction, or terephthalic acid and ethylene oxide are reacted to generate glycol ester of terephthalic acid and/or oligomer thereof, and a subsequent second step reaction in which the resulting product is heated under a reduced pressure to subject the same to polycondensation reaction until an intended polymerization degree is achieved.
  • Polyoxyalkylene-based polyether (a) to be blended to the composition for use in the invention may be a polyoxyalkylene glycol consisting of a single oxyalkylene unit, or a copolymerized polyoxyalkylene glycol consisting of two kinds or more of oxyalkylene units, in so far as it is substantially insoluble in polyester, or may be a polyoxyethylene-based polyether represented by the following formula (I): Z( ⁇ (CH 2 CH 2 O) n (R 1 O) m -R 2 ] k (I) (wherein, Z represents an organic compound residue having from 1 to 6 active hydrogen atoms; R 1 represents an alkylene group or substituted alkylene group having 6 or more carbon atoms; R 2 represents a hydrogen atom, monovalent hydrocarbon group having 1 - 40 carbon atoms, monovalent hydroxyhydrocarbon group having 2 - 40 carbon atoms or monovalent acyl group having 2 - 40 carbon atoms; k represents an integer of from 1 to 6;
  • polyoxyalkylene-based polyether examples include polyoxyethylene glycol having a molecular weight of 4000 or more, polyoxypropylene glycol having a molecular weight of 1000 or more, polyoxytetramethylene glycol, ethylene oxide having a molecular weight of 2000 or more, propylene oxide copolymer, trimethylolpropane ethylene oxide adduct having a molecular weight of 4000 or more, nonylphenol ethylene oxide adduct having a molecular weight of 3000 or more, and compounds in which a substituted ethylene oxide having 6 or more carbon atoms is added to an end OH group thereof.
  • polyoxyethylene glycol having a molecular weight of from 10000 to 100000, and compounds in which an alkyl group-substituted ethylene oxide having 8 - 40 carbon atoms is added to both ends of polyoxyethylene glycol, which has a molecular weight of from 5000 to 16000.
  • the blending amount of such a polyoxyalkylene-based polyether compound is in the range of from 0.2 to 30 parts by weight relative to 100 parts by weight of the aromatic polyester. When it is less than 0.2 part by weight, hydrophilicity is insufficient and satisfactory antistatic property can not be exerted. On the other hand, when the blending amount is more than 30 parts by weight, an additional effect of improving antistatic property can not be recognized anymore, but, in contrast, mechanical properties of an obtained composition tends to be degraded, and, in addition, since the polyether tends to bleed out to lower the biting property of the chip to a ruder upon melting and molding, and also to degrade molding stability.
  • an organic ionic compound is blended.
  • the organic ionic compound for example, sulfonic acid metal salts and sulfonic acid quaternary phosphonium salts represented by the following formulae (II) and (III), respectively, can be mentioned as preferable ones.
  • RSO 3 M (II) (wherein R represents an alkyl group having 3 - 30 carbon atoms, or an aryl group having 7 - 40 carbon atoms, and M represents an alkali metal or an alkali earth metal).
  • RSO 3 P R 1 R 2 R 3 R 4 (III) (wherein R represents an alkyl group having 3 - 30 carbon atoms, or an aryl group having 7 - 40 carbon atoms, R 1 , R 2 , R 3 and R 4 each represents an alkyl group or aryl group, and among these a lower alkyl group, phenyl group or benzyl group is preferable).
  • R is an alkyl group in the formula (II)
  • the alkyl group may be linear or have a branched side chain.
  • M is an alkali metal such as Na, K and Li, or an alkali earth metal such as Mg and Ca. Among these, Li, Na and K are preferable.
  • Such sulfonic acid metal salts may be used in only one kind singly or in two or more kinds in combination.
  • Preferable specific examples can include sodium stearylsulfonate, sodium octylsulfonate, sodium dodecylsulfonate, a mixture of sodium alkylsulfonates having average carbon atoms of 14, a mixture of sodium dodecylbenzenesulfonates, sodium dodecylbenzenesulfonate (hard type, soft type), lithium dodecylbenzenesulfonate (hard type, soft type), magnesium dodecylbenzenesulfonate (hard type, soft type), and the like.
  • the sulfonic acid quaternary phosphonium salt in the formula (III) may be used in one kind singly or in two or more kinds in combination.
  • Preferable specific example can include tetrabutylphosphonium alkylsulfonate having average carbon atoms of 14, tetraphenylphosphonium alkylsulfonate having average carbon atoms of 14, butyltriphenylphosphonium alkylsulfonate having average carbon atoms of 14, tetrabutylphosphonium dodecylbenzenesulfonate (hard type, soft type), tetraphenylphosphonium dodecylbenzenesulfonate (hard type, soft type), benzyltriphenylphosphonium dodecylbenzenesulfonate (hard type, soft type) and the like.
  • Such organic ionic compounds may be used in one kind or in two or more kinds in combination.
  • the blending amount thereof needs to be in the range of from 0.05 to 10 parts by weight relative to 100 parts by weight of the aromatic polyester.
  • a blending amount of the organic ionic compound is less than 0.05 part by weight, the effect of improving antistatic property is small, and when it is more than 10 parts by weight, mechanical properties of the composition tends to be degraded, and, in addition, since the ionic compound also tends to bleed out to lower the biting property of the chip to a ruder upon melting and molding, and also to degrade molding stability.
  • a publicly known delustering agent for example, titanium dioxide or the like may be blended in such a range that does not prevent the purpose of the invention. But, 10% by weight or more of a delustering agent results in degradation of spinning property of an undrawn yarn, which is to be a parent yarn of the invention, therefore the range is preferably from 0.01 to 10% by weight.
  • the ultrafine false-twist textured yarn of the invention needs to have a single filament fineness of 1.6 dtex or less, and a crimp percentage of from 3 to 30%. By determining them in these ranges, a woven or knit fabric excellent in soft feeling is obtained.
  • the crimp percentage of less than 3% does not give sufficiently swollen feeling when the ultrafine yarn is made into a woven or knit fabric, and, on the other hand, the percentage of more than 30% tends to lower antistatic performance, unpreferably.
  • the ratio SA:SB of the core part area SA and the sheath part area SB needs to be in the range of from 5:95 to 80:20.
  • the area ratio of less than 5:95 results in an insufficient expression of antistatic performance by the polyester A, and the ratio of more than 80:20 leads to elution of an antistatic polyester of the core part when an alkali weight reduction of 10% or more is conducted, to lower antistatic performance or lower the strength of a false-twist textured yarn to 3.0 cN/dtex or less, to result in an insufficient strength when it is formed into textile, and make it unsuitable for such applications as sportswear that require strength, thereby limiting applications, unpreferably.
  • the polyester ultrafine false-twist textured yarn of the invention described above can give stable antistatic performance by subjecting an undrawn yarn, which has been drawn at a ratio of discharge velocity and drawing velocity at spinning (drawing velocity/discharge velocity, hereinafter it is referred to as draft) in the range of from 150 to less than 800 upon melt spinning an undrawn yarn to be a parent yarn thereof, to a false-twist texturing.
  • draft discharge velocity/discharge velocity
  • the diameter of spinneret discharge opening and spinning velocity are approximately set. And, it can preferably be obtained easily and efficiently by performing melt spinning at a spinning velocity of from 2000 to 4500 m/min, particularly in the range of from 2500 to 3500 m/min, while setting the discharge opening diameter ⁇ to from 0.1 to 0.3 mm.
  • the double refractive index of an undrawn multifilament on this occasion is preferably in the range of from 0.02 to 0.05.
  • the double refractive index is less than 0.02
  • tension at false-twist texturing is low and tends to generate surging, which results in filament sway to cause a heat set spot and dyeing unevenness defect, and increase in texturing magnification and weak yarn, unpreferably.
  • the double refractive index is greater than 0.05, fluff of raw thread tends to occur to cause process disorder, unpreferably.
  • an air interlacing treatment may be performed in a process other than a drawing and false-twist texturing, but it is preferably performed just before the drawing and false-twist texturing by providing an interlace nozzle to a false-twist texturing apparatus, as shown in Fig. 1 .
  • the undrawn yarn that has been given an interlacing treatment is loaded on a drawing and false-twist texturing machine provided with two-stage heaters, for example, as shown in Fig. 1 , to form into a polyester false-twist textured yarn having crimps.
  • Fig. 1 there is illustrated a process in which the above-described polyester undrawn yarn (1) is subjected to an air interlacing treatment with interlace nozzles (4, 4') that are set up between two pairs of feed rollers (3, 3').
  • the undrawn yarn having been subjected to interlacing treatment here is twisted through friction with the rotating false-twisting disc (7) while being drawn between the feed rollers (3') and the first delivery rollers (8).
  • the yarn is heat-treated with the first stage heater (5), cooled with the cooling plate (6), and passes though the false-twisting disc (7) to be detwisted.
  • running yarn is heat-treated again, according to need, with the second stage heater (9) that is set up between the first delivery rollers (8) and the second delivery rollers (10), and, furthermore, after giving an air interlacing (4') to the yarn after a heat-set false-twisting, it is wound with the winding roller (11) as a cheese-shaped package (12), to produce a polyester false-twist textured yarn.
  • the first stage heater (5) and the second stage heater (9) are preferably of a non-contacting system.
  • the second stage heater is not often used, but it may be used for the purpose of providing feeling and the like, according to need.
  • the false-twisting tool (7) is of a three-axis friction disc type as shown in Fig. 2 , wherein a disc at the lowest stage has the material of ceramic and the contact length of the running yarn and the disc is determined to be from 2.5 to 0.5 mm, and that, further, the disc has a diameter of from 90 to 98% of the diameter of a disc just upstream thereof.
  • the false-twisting tool (7) as exemplified in Fig. 2 is of a three-axis friction disc type having three rotation axes (15) to each of which two false-twisting discs (13) are fixed, wherein each of rotation axes (15) is rotated at a predetermined velocity with the timing belt (16) that is driven with the driving belt (17), to enable respective false-twisting discs (13) to rotate.
  • each of rotation axes (15) is rotated at a predetermined velocity with the timing belt (16) that is driven with the driving belt (17), to enable respective false-twisting discs (13) to rotate.
  • the bottom disc located in the detwisting section among false-twisting discs (13) in the example shown in Fig.
  • the bottom disc fixed to the left side rotation axis a disc that is made of ceramic and has a diameter of from 90 to 98% of the diameter of a disc on just upstream side thereof (in the example shown in Fig. 2 , the bottom disc fixed to the central rotation axis) is used.
  • the contact length of the ceramic disc and a running yarn is determined to be from 2.5 to 0.5 mm.
  • the material of the bottom disc is preferably ceramic from the viewpoint of abrasion resistance. According to studies of the present inventors, it was revealed that, in the composite false-twist texturing according to the invention, by determining the contact length of the running yarn and the disc to be from 2.5 to 0.5 mm, it became possible to make a contact area as small as possible when the yarn having a crimped state after the termination of twisting entered the last detwisting section to reduce resistance and, as the result, fluff significantly to improve strength as the result, and that determining the diameter of the disc to be in the range of from 90 to 98% of the diameter of a disc just above thereof reduced resistance value when the yarn moved to a subsequent step (specifically, heat set) and was effective for smooth movement, and the like. It was confirmed that, among these, determining the contact length of the running yarn and the above-described disc to be from 2.5 to 0.5 mm reduced significantly texturing fluff and, as the result, was particularly effective for improving strength.
  • Temperature in false-twist texturing in the invention is preferably set to be from the glass transition temperature (hereinafter, referred to as TG) TG + 100°C to TG + 200°C, specifically from 170 to 300°.
  • TG glass transition temperature
  • a temperature less than 170°C results in low crimpability and solid feeling
  • a temperature more than 300°C results in progress of an extreme flatness of a textured yarn to tends to generate texturing fluff, unpreferably.
  • heat treatment is preferably performed while setting the temperature of the first stage non-contacting heater at from 170 to 300°C.
  • an appropriate heater temperature is based on a commercially available false-twist texturing machine (216 spindles, Model HTS-15V, manufactured by Teijin Seiki), wherein such a specification as a non-contacting length of from 1.0 to 1.5 m and a yarn velocity of 800 m/min or more is assumed. Therefore, it is a matter of course that a preset temperature should be adjusted suitably in such cases where a special heater is used or a texturing is performed at a hypervelocity.
  • the first heater in a twisting area is one for improving drawing property and false-twist texturing property (twistability) of an undrawn yarn.
  • the temperature thereof is a temperature less than 170°C in the case of a non-contacting heater, twistability lowers and the intended crimp of the invention can not be given, to result in paper-like feeling when the yarn is formed into a woven or knit fabric. Further, yarn breakage and fluff at drawing and false-twist texturing occur frequently, and a crimp spot and dyeing spot at dyeing tends to occur, unpreferably.
  • a first stage heater may be divided into a first half section and a latter half section. In the method of the invention, the first half and latter half sections of the first stage heater may be set at the same temperature.
  • the heat treatment time of a yarn in the first stage heater may be approximately set depending on the type of a heater, length and temperature thereof, and the like.
  • a too short heat treatment time tends to results in an insufficient crimp percentage, and to generate a drawn false-twist yarn breakage, fluff of a false-twist textured yarn, and a dyeing spot for woven or knit fabric due to tension variation.
  • a too long heat treatment time tends to result in a too large crimp percentage. Consequently, in the case where the heat treatment is performed with a non-contact type heater, usually, the range of from 0.04 to 0.12 second, in particular the range of from 0.06 to 0.10 second is appropriate.
  • the area of from 1.4 to 2.4 is the optimal zone. In a ratio outside this area, on a lower ratio side, surging and heat set spot due to yarn sway occur, and, on a higher ratio side, flatness of a textured yarn proceeds to generate texturing fluff, unpreferably.
  • a false-twist count when the fineness of a composite false-twist textured yarn is denoted by Y (dtex), the count is set in the range of [(15000 to 35000) /Y 1/2 ] time/m, more preferably [(20000 to 30000)/Y 1/2 ] time/m.
  • a false-twist count is less than 15000/Y 1/2 time/m, it becomes difficult to provide fine and solid crimp, and an obtained textile becomes paper-like to result in a hard feeling.
  • a false-twist count exceeds 35000/Y 1/2 time/m, yarn breakage and fluff occur often.
  • the ultrafine polyester false-twist textured yarn of the present invention thus obtained can also keep performances such as soft feeling, warmth-retaining property, water-absorbing property, hygroscopic property, which belong to conventional ultrafine polyester false-twist textured yarns, and can give polyester textiles also excellent in antistatic performance.
  • Respective measured values shown in Examples are values that were measured by the following methods. Simply denoted “part” in Examples and Comparative Examples means “part by weight,” if not otherwise specified.
  • a yarn running on a false-twisting disc was photographed, then a transit angle ⁇ of the yarn on respective false-twisting discs was actually measured on the photograph, and the average value of these measured values was defined as the transit angle.
  • a sample of a polyester false-twist textured yarn was wound on a cassette frame with an applied tension of 0.044 cN/dtex to form a cassette of about 3300 dtex.
  • two weights of 0.0177 cN/dtex and 0.177 cN/dtex were loaded, and length S0 (cm) after the lapse of 1 minute was measured.
  • the sample was treated in boiling water at 100°C for 20 minutes. After the boiling water treatment, the weight of 0.0177 cN/dtex was removed.
  • the false-twist textured yarn of the invention was used for forming a textile, which was classified into following levels 1 to 3 according to organoleptic tests by authorities.
  • a test piece was scrubbed with a friction cloth while rotating the piece, and generated friction-charged electrostatic potential was measured. It follows the L1094 charging property test method B method (friction-charged electrostatic potential measurement method). An antistatic effect was exerted when a friction-charged electrostatic potential was about 2000 V or less (preferably 1500 V or less).
  • an ester exchange reaction 100 parts of dimethyl terephthalate, 60 parts of ethylene glycol, 0.06 part (0.066% by mol relative to dimethyl terephthalate) of calcium acetate monohydrate, and 0.013 part (0.01% by mol relative to dimethyl terephthalate) of cobalt acetate tetrahydrate as an orthochromatic agent were put.
  • the temperature of these reaction materials was raised from 140°C to 220°C over 4 hours under a nitrogen atmosphere to subj ect the materials to an ester exchange reaction, while distilling methanol that generated in the reaction can out of the reaction system.
  • the pressure was reduced from 760 mmHg to 1 mmHg and, simultaneously, the temperature was raised from 240°C to 280°C over 1 hour and 40 minutes, to subject the mixture to a polycondensation reaction, followed by adding 4 parts of water-insoluble polyoxyethylene-based polyether represented by the following formula and 2 parts of sodium dodecylbenzenesulfonate under vacuum, which was subjected to an additional polycondensation reaction for 240 minutes, followed by adding 0.4 part of IRGANOX 1010 manufactured by Ciba-Geigy as an oxidation inhibitor under vacuum, which was subjected to a further additional polycondensation reaction for 30 minutes.
  • IRGANOX 1010 manufactured by Ciba-Geigy as an oxidation inhibitor under vacuum
  • the average value means an average value of the number of oxyethylene units in copolymerized polyoxyethylene-based polyether composed of two kinds or more of oxyethylene units).
  • the intrinsic viscosity of the obtained polymer was 0. 657, and the softening point was 258°C.
  • the obtained chip, and a usual polyethylene terephthalate chip that contained 0.4% by weight of titanium oxide fine particles and had an intrinsic viscosity of 0.65 were dried according to an ordinary method. Then each of chips was molten with a spinning apparatus by an ordinary method, which was passed through a spinning block and guided into a spin pack for a composite filament. Filaments from a spinneret having 72 pierced core-sheath type composite circular discharge openings that was mounted on the spin pack were cooled and solidified with cooling wind from a spinning cylinder of an ordinary cross flow type, and converged into one yarn while being given a spinning oil agent.
  • the yarn was pulled out at a velocity of 3000 m/min (draft magnification: 200), to give a polyester core-sheath type composite undrawn yarn of 140 dtex/72filament, which had a core/sheath area ratio of 70:30.
  • the polyester undrawn yarn was set on a 216-spindle HTS-15V manufactured by TEIJIN SEIKI, which was given air interlacing with a flow volume of 60 nL/min so as to give a interlace degree of 50 points/m while allowing the yarn to pass through an interlace nozzle having a pressured air-blowing opening with a diameter of 1.8 mm in the first stage and latter stage, as shown in Fig. 1 (4, 4').
  • polyester false-twist textured yarns were used for producing a tubular knitted fabric, and antistatic property was measured.
  • the friction-charged electrostatic potential of the obtained polyester false-twist textured yarn was 1200 V.
  • these polyester false-twist textured yarns were formed into a woven fabric according to an ordinary method, for which the grade was organolepticly evaluated, to show that the fabric had a very deep and high-grade feeling, and exerted soft feeling. The results are shown in Table 1.
  • Polyethylene glycol was reacted with acrylonitrile in the presence of an alkali catalyst, which was further subjected to a hydrogen addition reaction, to synthesize polyethylene glycol diamine (number average molecular weight of 4000) that included an amino group at 97% or more of both terminals.
  • the diamine was subjected to salt reaction with adipic acid according to an ordinary method to give a 45% aqueous solution of polyethylene glycol diammonium adipate.
  • a concentration can having a volume of 2 m 3 200 kg of the 45% aqueous solution of polyethylene glycol diammonium adipate, 120 kg of a 85% caprolactam aqueous solution, and 16 kg of 40% hexamethylenediammonium isophthalate aqueous solution were put. They were heated for about 2 hours until the interior temperature was 110°C at normal pressure to be concentrated to a concentration of 80%. Subsequently, the concentrated liquid was moved to a polymerization can having a volume of 800 litters. Then, heating was started while flowing nitrogen into the polymerization can at 2.5 l/min.
  • the pellet consisting of a block polyetheramide composition was blended to usual polyethylene terephthalate chip having an intrinsic viscosity of 0. 65 that did not contain titanium oxide so as to give 1.4% by weight. Then, a polyester false-twist textured yarn of 84 dtex/72filament (average single filament fineness of 1.17 dtex) having a core/sheath ratio of 70:30 was obtained in the same way as in Example 1, except that the above-described blended material was used for a core component. A textile consisting of the fiber showed soft and excellent feeling similar to that in Example 1, however, it had such a very poor friction-charged electrostatic potential as 3400 V. Results are shown collectively in Table 1.
  • Each of core-sheath type composite polyester false-twist textured yarns of 56 dtex/72filament (average single filament fineness of 0.78 dtex) and 111 dtex/72filament (average single filament fineness of 1.54 dtex) having a core-sheath ratio of 70:30 was obtained in the same way as in Example 1 except for changing the polymer discharging amount. Textiles made of these yarns had both excellent friction-charged electrostatic potential and feeling. Results are shown collectively in Table 1.
  • Each of core-sheath type composite polyester false-twist textured yarns of 56 dtex/72filament (average single filament fineness of 0.78 dtex) and 111 dtex/72filament (average single filament fineness of 1.54 dtex) having a core-sheath ratio of 70:30 was obtained in the same way as in Comparative Example 1 except for changing the polymer discharging amount. Textiles made of these yarns had such excellent feeling as that in Example 1, however, they had a high friction-charged electrostatic potential and were unsuitable for practical use. Results are shown collectively in Table 1.
  • a core-sheath type composite polyester false-twist textured yarn of 133 dtex/72filament (average single filament fineness of 1.85 dtex) having a core-sheath ratio of 70:30 was obtained in the same way as in Example 1 except for increasing the polymer discharging amount.
  • a textile made of the yarn had such excellent friction-charged electrostatic potential as that in Example 1, however, it had a hard feeling and was unsuitable for practical use. Results are shown collectively in Table 1.
  • a core-sheath type composite polyester false-twist textured yarn of 84 dtex/36filament (average single filament fineness of 2.33 dtex) having a core-sheath ratio of 70:30 was obtained in the same way as in Example 1 except for replacing the spinneret with one having 36 holes.
  • a textile made of the yarn had such excellent friction-charged electrostatic potential as that in Example 1, however, it had a hard feeling and was unsuitable for practical use. Results are shown collectively in Table 1.
  • a core-sheath type composite polyester false-twist textured yarn of 133 dtex/72filament (average single filament fineness of 1.85 dtex) having a core-sheath ratio of 70:30 was obtained in the same way as in Comparative Example 1 except for increasing the polymer discharging amount.
  • a textile made of the yarn had a friction-charged electrostatic potential which was improved as compared with that in Comparative Example 1 but still insufficient, and, in addition, it had a hard feeling and was unsuitable for practical use. Results are shown collectively in Table 1.
  • a core-sheath type composite polyester false-twist textured yarn of 84 dtex/36filament (average single filament fineness 2.33 dtex) having a core-sheath ratio of 70:30 was obtained in the same way as in Comparative Example 1 except for replacing the spinneret with one having 36 holes.
  • a textile made of the yarn had a friction-charged electrostatic potential which was improved as compared with that in Comparative Example 1 but still insufficient, and, in addition, it had a hard feeling and was unsuitable for practical use. Results are shown collectively in Table 1.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Multicomponent Fibers (AREA)
  • Woven Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Laminated Bodies (AREA)

Claims (7)

  1. Fil en poly(ester) ultrafin texturé à fausse torsion de type âme-enveloppe antistatique, caractérisé en ce qu'il s'agit d'un filament composite de type âme-enveloppe texturé à fausse torsion, dans lequel :
    la partie d'âme du filament composite de type âme-enveloppe est formée à partir d'une composition de poly(ester) antistatique A contenant les composés (a) et (b) suivants, en tant qu'agent antistatique, pour 100 parties en poids de poly(ester) aromatique,
    (a) de 0,2 à 30 parties en poids de poly(éther) à base de poly(oxyalkylène), et
    (b) de 0,05 à 10 parties en poids d'un composé ionique organique qui est sensiblement non réactif avec le poly(ester) ; et
    la partie d'enveloppe est formée à partir d'une composition de poly(ester) aromatique B, et
    le filament composite de type âme-enveloppe satisfait simultanément les conditions (1) à (3) suivantes :
    (1) une finesse de filament simple du fil texturé à fausse torsion est de 1,6 dtex ou moins,
    (2) un pourcentage de frisure du fil texturé à fausse torsion va de 3 à 30 %, et
    (3) un rapport SA:SB d'une aire de partie d'âme SA et d'une aire de partie d'enveloppe SB se situe dans la plage de 5:95 à 80:20.
  2. Fil en poly(ester) ultrafin texturé à fausse torsion de type âme-enveloppe antistatique selon la revendication 1, dans lequel la composition de poly(ester) aromatique B est une composition de poly(ester) qui comprend un agent délustrant de 0,01 à 10 % en poids pour 100 parties en poids du poly(ester) aromatique.
  3. Fil en poly(ester) ultrafin texturé à fausse torsion de type âme-enveloppe antistatique selon la revendication 1, dans lequel l'agent délustrant est le dioxyde de titane.
  4. Procédé de production d'un fil en poly(ester) ultrafin texturé à fausse torsion de type âme-enveloppe antistatique caractérisé en ce que lors du filage par fusion d'un filament composite de type âme-enveloppe ayant une partie d'âme qui est formée à partir d'une composition de poly(ester) antistatique A contenant les composés (a) et (b) suivants, en tant qu'agent antistatique, pour 100 parties en poids du poly(ester) aromatique,
    (a) de 0,2 à 30 parties en poids de poly(éther) à base de poly(oxyalkylène), et
    (b) de 0,05 à 10 parties en poids d'un composé ionique organique qui est sensiblement non réactif avec le poly(ester) ; et une partie d'âme qui est formée à partir d'une composition de poly(ester) aromatique B,
    un filament est étiré à un rapport de vitesse de décharge et de vitesse d'étirage au filage (vitesse d'étirage/vitesse de décharge, ci-après parfois abrégé en grossissement de rentrage) dans la plage de 150 à moins de 800, puis est soumis à une texturation à fausse torsion.
  5. Procédé de production d'un fil en poly(ester) ultrafin texturé à fausse torsion de type âme-enveloppe antistatique selon la revendication 4, dans lequel la composition de poly(ester) aromatique B est une composition de poly(ester) qui comprend un agent délustrant de 0,01 à 10 % en poids pour 100 parties en poids du poly(ester) aromatique.
  6. Procédé de production d'un fil en poly(ester) ultrafin texturé à fausse torsion de type âme-enveloppe antistatique selon la revendication 4, dans lequel l'agent délustrant est le dioxyde de titane.
  7. Etoffe tissée hydrophobe antistatique caractérisée en ce que l'étoffe tissée hydrophobe est formée en soumettant une étoffe tissée comprenant un fil en poly(ester) ultrafin texturé à fausse torsion de type âme-enveloppe à une hydrofugation, le fil en poly(ester) texturé à fausse torsion de type âme-enveloppe étant le fil en poly(ester) ultrafin texturé à fausse torsion de type âme-enveloppe antistatique tel que décrit dans l'une quelconque des revendications 1 à 3.
EP07831085A 2006-10-30 2007-10-26 Fil de polyester à fausse torsion et denier ultrafin de type âme-enveloppe antistatique, son procédé de production et tissus hydrofuges antistatiques comprenant le fil Not-in-force EP2078771B1 (fr)

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JP2006294097 2006-10-30
JP2007074764 2007-03-22
PCT/JP2007/071351 WO2008053977A1 (fr) 2006-10-30 2007-10-26 Fil de polyester à fausse torsion et denier ultrafin de type âme-enveloppe antistatique, son procédé de production et tissus hydrofuges antistatiques comprenant le fil

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JP (1) JP4896985B2 (fr)
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AT (1) ATE491057T1 (fr)
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JP5249649B2 (ja) * 2008-06-26 2013-07-31 帝人株式会社 繊維製品
JP2010111961A (ja) * 2008-11-05 2010-05-20 Teijin Fibers Ltd 制電性を有する極細仮撚り加工糸及びその製造方法
TW201040334A (en) * 2008-11-27 2010-11-16 Teijin Fibers Ltd Antistatic ultrafine textured yarn having uv-blocking effect and method for producing the same
CN101845676B (zh) * 2010-05-18 2012-05-23 北京航空航天大学 一种复合纤维及其制备方法
JP2012012748A (ja) * 2010-07-05 2012-01-19 Teijin Fibers Ltd 制電性を有する極細混繊糸及び布帛
KR101437782B1 (ko) * 2013-05-27 2014-09-04 김인효 고탄력성 폴리에스터 직물 및 그 제조방법
WO2014192648A1 (fr) * 2013-05-29 2014-12-04 東レ株式会社 Structure fibreuse
KR101656782B1 (ko) * 2016-03-28 2016-09-12 주식회사 여주티앤씨 벌키성이 우수한 폴리에스테르 잠재권축가연사의 제조방법
EP3992335A4 (fr) * 2019-06-27 2023-09-20 Kuraray Co., Ltd. Fibres composites électroconductrices et structure fibreuse les utilisant
KR20210015399A (ko) * 2019-08-02 2021-02-10 도레이첨단소재 주식회사 심초형 복합가연사 및 이의 제조방법
CN116024713A (zh) * 2022-12-20 2023-04-28 桐乡市恒富包复丝有限公司 一种全消光涤纶氨纶包复丝
DE102022004932A1 (de) * 2022-12-24 2024-06-27 Oerlikon Textile Gmbh & Co. Kg Falschdralleinrichtung zum Texturieren eines synthetischen Fadens

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JPS5380497A (en) 1976-12-27 1978-07-15 Toray Ind Inc Preparation of block polyetheramide composition
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JPS6011944B2 (ja) 1977-06-01 1985-03-29 帝人株式会社 制電性ポリエステル組成物
JPS6039413A (ja) 1983-08-08 1985-03-01 Asahi Chem Ind Co Ltd 制電性ポリエステル繊維
JP2659380B2 (ja) * 1987-12-23 1997-09-30 帝人株式会社 均染性混繊仮撚加工糸
JPH03139556A (ja) * 1989-10-24 1991-06-13 Teijin Ltd 制電性ポリエステル組成物および繊維
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EP2078771A4 (fr) 2009-12-23
TWI431174B (zh) 2014-03-21
KR101331636B1 (ko) 2013-11-20
DE602007011096D1 (de) 2011-01-20
JPWO2008053977A1 (ja) 2010-02-25
KR20090076995A (ko) 2009-07-13
EP2078771A1 (fr) 2009-07-15
CA2668002A1 (fr) 2008-05-08
TW200831726A (en) 2008-08-01
ATE491057T1 (de) 2010-12-15
CA2668002C (fr) 2014-07-29
US20100313990A1 (en) 2010-12-16
JP4896985B2 (ja) 2012-03-14
WO2008053977A1 (fr) 2008-05-08

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