WO2011122272A1 - 吸湿性繊維およびその製造方法 - Google Patents

吸湿性繊維およびその製造方法 Download PDF

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Publication number
WO2011122272A1
WO2011122272A1 PCT/JP2011/055454 JP2011055454W WO2011122272A1 WO 2011122272 A1 WO2011122272 A1 WO 2011122272A1 JP 2011055454 W JP2011055454 W JP 2011055454W WO 2011122272 A1 WO2011122272 A1 WO 2011122272A1
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Prior art keywords
fiber
polyamide
hygroscopic
resin
fibre
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PCT/JP2011/055454
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English (en)
French (fr)
Japanese (ja)
Inventor
伊藤憲司
高木健太郎
栗林隆宏
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東レ株式会社
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Application filed by 東レ株式会社 filed Critical 東レ株式会社
Priority to CN201180016429.4A priority Critical patent/CN102834556B/zh
Priority to KR1020127025362A priority patent/KR101550960B1/ko
Priority to JP2011522312A priority patent/JP5741434B2/ja
Priority to EP20110762512 priority patent/EP2554721B1/de
Priority to US13/636,371 priority patent/US20130280513A1/en
Publication of WO2011122272A1 publication Critical patent/WO2011122272A1/ja

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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
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
    • A41B9/00—Undergarments
    • 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
    • D01D5/04—Dry spinning methods
    • 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
    • D01D5/12—Stretch-spinning methods
    • 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
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
    • D01F6/605—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides from aromatic polyamides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2915—Rod, strand, filament or fiber including textile, cloth or fabric

Definitions

  • the present invention relates to a highly hygroscopic fiber made of polyamide 56 resin.
  • Synthetic fibers made of thermoplastic resins such as polyamide and polyester are widely used in clothing and industrial applications because they are excellent in strength, chemical resistance, heat resistance and the like.
  • polyamide fibers are widely used for applications such as innerwear and sportswear by taking advantage of their unique softness, high tensile strength, coloring properties during dyeing, and high heat resistance.
  • Patent Document 1 proposes a method of applying a hygroscopic agent to the fiber surface in the post-processing stage after the formation of polyamide fibers.
  • Patent Document 2 proposes a method for producing fibers using a polyamide resin obtained by copolymerizing polyoxyalkylene glycol, which is a hydrophilic component.
  • Patent Document 3 discloses that the fiber structure has a core-sheath structure in which a highly hygroscopic thermoplastic resin is used as a core and a thermoplastic resin having excellent mechanical properties is used as a sheath. A method for achieving both mechanical characteristics has been proposed.
  • Patent Document 1 proposes a method for improving moisture absorption performance by blending and spinning poly (vinyl pyrrolidone) as a hydrophilic polymer in polyamide. JP 9-188917 A JP-A-5-209316 JP-A-3-213519 JP 60-246818
  • the composite fiber of Patent Document 3 has a drawback that the production apparatus becomes complicated and thus has a high cost. Also, due to the difference in water absorption ability of the polymer used for the core part and the sheath part, during the hot water treatment such as scouring and dyeing Since the hygroscopic resin in the core part absorbs water and swells greatly, the fiber surface is cracked and the core polymer is eluted.
  • Patent Document 1 Although the method of Patent Document 1 is excellent as a hygroscopic fiber, since polyamide pyrrolidone is added based on polyamide 6 as a polyamide, for example, in recent years, a tight-fit T-shirt or the like is worn as a fashion trend. With an increasing number of women, and with an increasing demand for mold bras that are hard to crack on the outer, heat resistance to mold processing was not sufficient. Further, when polyvinyl pyrrolidone is added based on polyamide 66 having a high melting point, there is a problem that the spinning temperature of polyamide 66 is high and polyvinyl pyrrolidone is thermally deteriorated and cannot be stably spun.
  • the object of the present invention is as follows. This is achieved by a hygroscopic fiber made of polyamide 56 resin and having a ⁇ MR of 3.0% or more.
  • Another object of the present invention is to cool and solidify the polyamide 56 fiber discharged from the die with cooling air, attach a spinning oil agent, stretch the film, and wind it up.
  • the manufacturing method is achieved by a method for manufacturing a hygroscopic fiber that satisfies the following conditions (1) to (2).
  • the die discharge linear velocity is 14 m / min or more and 30 m / min or less.
  • the product of the take-off speed and the draw ratio is 3900 or more and 4500 or less.
  • the object of the present invention is further achieved by a fabric using the hygroscopic fiber. Is done.
  • the object of the present invention is further achieved by a fiber structure including the above fabric.
  • the hygroscopic fiber of the present invention preferably has a birefringence of 30 ⁇ 10 ⁇ 3 or more and 40 ⁇ 10 ⁇ 3 or less.
  • the fabric of the present invention is a fabric using the above-mentioned hygroscopic fiber, and preferably includes a portion formed by molding.
  • the fiber structure of the present invention is preferably an inner.
  • a high value-added hygroscopic synthetic fiber having a high moisture absorption rate can be obtained without impairing the properties of the polyamide such as strength, chemical resistance and heat resistance.
  • the polyamide 56 fiber of the present invention is a fiber made of a polyamide 56 resin whose main constituent units are 1,5-diaminopentane units and adipic acid units.
  • the polyamide 56 fiber of the present invention contains 1,5-diaminopentane units utilizing biomass because of excellent environmental adaptability.
  • 50% or more of the 1,5-diaminopentane units constituting the polyamide 56 are made of 1,5-diaminopentane obtained by using biomass. More preferably, it is 75% or more, and most preferably 100%.
  • the polyamide 56 in the present invention it is preferable to use a polymer having a 98% sulfuric acid relative viscosity of 2.4 or more and 2.6 or less in order to effectively express the effect of the present invention.
  • the 98% sulfuric acid relative viscosity is in this preferred range, it is easy to obtain sufficient strength when it is made into a fiber.
  • the extrusion pressure of the molten polymer at the time of spinning and the rate of increase over time are moderate, and it is not necessary to overload the production facility and shorten the exchange period of the die, so that high productivity is maintained.
  • the 98% sulfuric acid relative viscosity means a value obtained by dissolving 25 g of fiber in 25 ml of 98% sulfuric acid and measuring at 25 ° C. using an Ostwald viscometer.
  • the polyamide 56 in the present invention may be copolymerized or mixed with the second and third components in addition to the main component within the range not departing from the object of the present invention.
  • the copolymer component may include a structural unit derived from an aliphatic carboxylic acid, an alicyclic dicarboxylic acid, or an aromatic dicarboxylic acid.
  • aliphatic diamines such as ethylenediamine and cyclohexanediamine
  • alicyclic diamines such as bis- (4-aminocyclohexyl) methane
  • aromatic diamines such as xylylenediamine, 6-aminocaproic acid, 11-aminoundecanoic acid
  • Structural units derived from amino acids such as 12-aminododecanoic acid and paraaminomethylbenzoic acid
  • lactams such as ⁇ -caprolactam and ⁇ -laurolactam
  • the polyamide 56 in the present invention includes various additives such as matting agents, flame retardants, antioxidants, ultraviolet absorbers, infrared absorbers, crystal nucleating agents, fluorescent whitening agents, antistatic agents and the like.
  • the total additive content may be 0.001 to 10% by weight or copolymerized or mixed as necessary.
  • the cross-sectional shape of the single fiber of the polyamide 56 fiber of the present invention is not limited to a round cross-section, and various cross-sectional shapes such as flat, Y-type, T-type, hollow-type, paddy-type, and well-type can be adopted.
  • cross-sections such as Y-type, T-type, and well-type are preferable so that a gap is formed between adjacent filaments when a fabric is formed, and water absorption due to capillary action can be expressed.
  • ⁇ MR is an index for obtaining comfort by releasing moisture in the clothes to the outside air when the clothes are worn, and is 30 ° C. ⁇ 90% RH when performing light to medium work or light to medium exercise. It is a difference in moisture absorption between the temperature in the garment represented and the outside air temperature humidity represented by 20 ° C. ⁇ 65% RH.
  • this ⁇ MR is used as a parameter as a measure of moisture absorption performance evaluation. The larger the ⁇ MR, the higher the moisture absorption / release capacity, and the better the comfort when worn.
  • polyamide fibers such as polyamide 6 and polyamide 66 have ⁇ MR of about 1.5 to 2.0.
  • the polyamide fiber of the present invention has a high moisture absorption / release property with a ⁇ MR of 3.0% or more. If ⁇ MR is less than 3.0%, the moisture absorption and desorption of the same level as that of ordinary polyamide 6 or polyamide 66 only remains, and there is a problem that comfort at the time of wearing is not high. Although there is no limit on the upper limit, even if it is made too large, a great difference in sensation does not occur, and ⁇ MR of about 20% is sufficient.
  • the moisture absorbing / releasing ability of the polyamide fiber largely depends on the crystal structure in the fiber.
  • the reversible moisture absorption and desorption ability greatly depends on the ratio of the amorphous part in the fiber. Accordingly, in order to improve the ⁇ MR of the polyamide fiber, it is important to increase the ratio of the amorphous portion within a range not impairing the spinning operability and the yarn quality.
  • the birefringence of a crystalline synthetic fiber is large for a fiber in which the molecular chain is advanced, and is small for a fiber in which the orientation is not advanced.
  • the molecular chain orientation is an important parameter because it greatly affects the water absorption rate of the fiber as described below. That is, the moisture absorption of the polyamide fiber is divided into two cases, when the water is coordinated and bonded to the amide group of the polyamide, and when the polyamide molecular chain in the fiber is taken into the amorphous part where it exists in a random state. In some cases, however, the ratio of the amorphous portion in the fiber greatly affects the ⁇ MR value.
  • Polyamide fibers have a large proportion of crystal parts, a small proportion of amorphous parts that can retain moisture, and when there are many crystal parts, the moisture on the fiber surface reaches the vicinity of the amide groups in the polyamide fibers. Can not do it.
  • the orientation of the molecular chain can be expressed by birefringence, and when the birefringence increases, the moisture absorption rate tends to increase.
  • the moisture absorption rate is too large, the spinning oil and the moisture in the air are excessively absorbed, resulting in the result.
  • the yarn swells and cannot be stably spun, and the dispersion of the fiber structure increases and the quality deteriorates.
  • birefringence becomes small, the orientational crystallization of the molecular chain in the fiber proceeds and the moisture absorption rate tends to decrease.
  • the birefringence is preferably 30 ⁇ 10 ⁇ 3 or more and 40 ⁇ 10 ⁇ 3 or less, and within this range, the spinning operability and yarn quality of the polyamide 56 fiber are not impaired.
  • a polyamide 56 fiber having a high moisture absorption / release property can be obtained.
  • the polyamide fiber of the present invention can be produced by the following method.
  • FIG. 1 is a schematic view showing an example of a synthetic fiber production process according to the present invention.
  • the melted polyamide is measured and transported by a gear pump, discharged from the spinneret 2, cooled by blowing air with a cooling device 3 such as a chimney to cool the yarn to room temperature, and supplied with an oil supply device 4. Then, the particles are converged together, entangled by the first fluid entanglement nozzle device 5, passed through the take-up roller 6 and the drawing roller 7, and then drawn according to the ratio of the peripheral speeds of the take-up roller 6 and the drawing roller 7. Further, the yarn is heat set by the drawing roller 7 and wound by a winder (winding device) 8.
  • the die discharge linear velocity is set to 14 m / min or more and 30 m / min or less.
  • the die discharge linear velocity is a value obtained by dividing the discharge volume per unit time of the polymer in the die hole for spinning the yarn by the die hole area, and the degree of orientation of the filamentous polymer discharged from the die hole It is a parameter that influences. If the die discharge linear velocity is low, the ratio of the die discharge linear velocity to the take-off roller 6 is increased when the take-up roller 6 takes the wire, and an excessive drawing tension is applied to the filament being drawn, resulting in a single yarn breakage and stability. It cannot be prevented. On the other hand, if the die discharge linear velocity is too high, the fiber orientation after taking up by the take-up roller 6 and then drawing by the drawing roller 7 is excessively advanced, resulting in a fiber having a low moisture absorption rate.
  • the spinning conditions are such that the product of the take-up speed (m / min) of the yarn taken up by the take-up roller 6 and the draw ratio which is the value of the peripheral speed ratio of the take-up roller 6 and the draw roller 7 is 3900 or more and 4500. Is set.
  • This numerical value represents the total amount of stretching of the polymer discharged from the die from the die discharge linear speed to the circumferential speed of the take-up roller 6, and further from the circumferential speed of the take-up roller 6 to the circumferential speed of the drawing roller 7. If this value is too small, the degree of orientation of the fiber is low and the moisture absorption rate becomes too high, and the spinning oil and moisture in the air are excessively absorbed. As a result, the yarn swells and stable spinning cannot be performed. On the other hand, if this value is too large, the orientation of the fiber proceeds too much, resulting in a fiber having a low moisture absorption rate.
  • the spinning oil applied by the oil supply device 4 is a non-hydrous oil.
  • a non-hydrous oil agent is applied, there is no possibility that moisture is absorbed by the polyamide 56 during the oil agent application, so that so-called polyamide swelling does not occur, and therefore there is no fiber length variation during yarn production, and stable winding. Is possible.
  • the polyamide fiber of the present invention preferably has a tensile strength of 3.5 cN / dtex or more.
  • a tensile strength of the fiber By setting the tensile strength of the fiber to 3.5 cN / dtex or more, the practical strength of the cloth for clothing such as inner, which is the main use of the polyamide 56 cloth, can be realized. More preferably, it is 4.0 cN / dtex or more.
  • the polyamide fiber of the present invention preferably has an elongation of 35% or more.
  • process passability in high-order processes such as weaving, knitting, and false twisting is improved. More preferably, it is 40 to 65%.
  • the fineness of the polyamide fiber of the present invention is preferably 100 dtex or less, more preferably 60 dtex or less from the viewpoint of thickness when processed into a fabric.
  • the single yarn fineness is preferably 4.0 dtex or less, more preferably 2.0 dtex or less from the viewpoint of softness when processed into a fabric.
  • the structure of the hygroscopic fiber obtained as described above is not limited to that described above, and may be either a filament or a staple, and is selected depending on the application.
  • a fabric form it can select according to the objectives, such as a textile fabric, a knitted fabric, and a nonwoven fabric, and clothing is also included. It is processed after weaving and weaving by a normal method, and can be sewn to make various clothing products such as innerwear, pantyhose and tights.
  • the fabric of this invention has the heat resistance and water absorption which were difficult to be compatible with the conventional polyamide fiber, it is preferable that it is a fabric containing the part shape
  • the fiber structure of the present invention includes an inner molded to form a concave portion such as a brassiere cup, shorts, girdle waist or hip portion, a convex portion, or a constricted curved surface, or such a molding process.
  • a concave portion such as a brassiere cup, shorts, girdle waist or hip portion, a convex portion, or a constricted curved surface, or such a molding process.
  • Use as an inner part having a portion is preferable.
  • Mold processing is a process in which a fabric such as a woven fabric, a knitted fabric or a non-woven fabric is sandwiched in a mold (mold), and heat treatment is applied to round the mold.
  • the mold surface temperature is usually 160 to 230 ° C., preferably 170 to 220 ° C., more preferably 190 to 200 ° C.
  • the treatment time is preferably 0.5 to 3 minutes.
  • MR 1 [(W 65 ⁇ W 0 ) / W 0 ] ⁇ 100% (1)
  • MR 2 [(W 90 ⁇ W 0 ) / W 0 ] ⁇ 100% (2)
  • ⁇ MR MR 2 -MR 1 (3)
  • F. The total fineness and single fiber fineness are rotated 10 times with a measuring machine of 1 m / circumference, and 5 loop-like skeins of 10 turns are prepared and used as a sample for weight measurement.
  • a 10-turn loop skein is prepared, and five loop skeins are formed so that the ends of the skeins are not untied and used as a sample for sample length measurement.
  • a total of 10 samples were allowed to stand for 48 hours in an environment of 25 ° C. and RH 55% under no load to adjust the humidity. Thereafter, under the same environment, the weight of the loop-shaped skein for weight measurement was measured to obtain an average value A (g).
  • the skein length of the loop-shaped skein for measuring the sample length was measured in the same environment.
  • a loop skein for measuring the sample length was applied to the hook, and a load equivalent to 0.05 cN / dtex was applied to the loop skein to measure the skein length.
  • the sample length was 20 times the skein length, and an average value B (m) of five sample lengths was determined. Then, after dividing A by B, the total fineness was determined by multiplying by 10,000. The single fiber fineness was obtained by dividing the total fineness by the number of filaments. G.
  • Mold workability A hemispherical hot iron ball with a diameter of 10 cm, heated to a surface temperature of 200 ° C., with a stretchable fabric fixed in a relaxed state without sagging between two 2 cm thick fixtures hollowed to a diameter of 15 cm Is pressed into the fabric and pressed so that the depth is 10 cm, and the hot iron ball is removed immediately after 60 seconds.
  • the appearance before and after processing of the shaped hump surface shape is evaluated according to the following criteria.
  • Spinning stability was evaluated based on the number of spun yarn breaks when two packages per winder were wound for one hour under the spinning conditions described below.
  • Production Example 1 (Production of polyamide 56 resin) An aqueous solution prepared by dissolving 12.3 kg of 1,5-diaminopentane in 30.0 kg of ion-exchanged water is immersed in an ice bath and stirred. In the vicinity of the neutralization point, the mixture was heated in a water bath at 40 ° C. to bring the internal temperature to 33 ° C., and 50 weight of equimolar salt of 1,5-diaminopentane and adipic acid having a pH of 8.32. A 60.0 kg% aqueous solution was prepared.
  • the obtained polyamide 56 resin had a sulfuric acid relative viscosity of 2.54 and an amino terminal group amount of 2.77 ⁇ 10 ⁇ 5 mol / g.
  • Tm measured by a differential scanning calorimeter was 254 ° C.
  • Production Example 2 (Production of polyamide 66 resin) An aqueous solution prepared by dissolving 30.0 kg of hexamethylene diammonium adipate (manufactured by Rhodia) in 30.0 kg of ion exchange water, 140.4 g of adipic acid (manufactured by Kirk Co., Ltd.), and titanium dioxide to a concentration of 20% 28.5 g of the slurry dispersed in ion-exchanged water was placed in a batch type polymerization can having an internal volume of 80 L equipped with a stirrer having a double helical ribbon blade and a heating medium jacket.
  • polyamide 66 resin had a sulfuric acid relative viscosity of 2.52 and an amino end group content of 2.88 ⁇ 10 ⁇ 5 mol / g. Tm measured by a differential scanning calorimeter was 262 ° C.
  • Production Example 3 (Production of polyamide 6 resin) ⁇ caprolactam containing 1 wt% of water was continuously supplied in an amount of 30 kg / hr to a first polymerization reactor having a volume of 0.2 m 3 equipped with a thermometer, the heating temperature was set to 270 ° C., and polymerization was performed. went.
  • a polymerization intermediate corresponding to the supplied amount was discharged and supplied to a second polymerization reactor having a volume of 0.08 m 3 equipped with a condenser and a thermometer.
  • the heating temperature of the second polymerization reactor was set to 250 ° C., continuous polymerization was performed under normal pressure, and discharge of the polycapramide as a polymerization reaction product was started. From the point of time when ⁇ -caprolactam 1.5 times the capacity of the first polymerization reactor was supplied, pelletization was performed to obtain a polycapramide-based yarn-making material.
  • the resulting polycapramide-based yarn-making material was treated with hot water at 95 ° C. for 16 hours to remove low molecular weight components.
  • the obtained polyamide 6 resin had a sulfuric acid relative viscosity of 2.60 and an amino end group content of 5.10 ⁇ 10 ⁇ 5 mol / g. Tm measured with a differential scanning calorimeter was 230 ° C.
  • melt spinning, drawing, and heat treatment were continuously performed to obtain polyamide 56 fibers.
  • the polyamide 56 resin obtained in Production Example 1 was conditioned to a moisture content of 0.11% and charged into a spinning machine. When melted at 290 ° C. and led to the spinneret 2 through the polymer pipe, the polymer was measured and discharged by the gear pump 1 and led to the spinneret 2 set at 290 ° C. Spinning was performed from the spinneret 2 having 24 holes of 0.5 mm round holes.
  • the rotation speed of the gear pump 1 was selected so that the total fineness of the obtained polyamide 56 fiber was 78 dtex, and the discharge amount was 31.2 g / min. Then, after the yarn is cooled and solidified by the yarn cooling device 3 and the non-hydrous oil agent is supplied by the oil supply device 4, entanglement is given by the first fluid entanglement nozzle device 5, and the peripheral speed of the take-up roller 6 that is the first roll. was wound at 2,066 m / min, the peripheral speed of the stretching roller 7 as the second roll was 4,123 m / min, and the winding speed was 4,000 m / min to obtain a cheese package.
  • Example 2 Except that the discharge rate of the gear pump 1 is 34.1 g / min, the first roll peripheral speed is 4,250 m / min, the second roll peripheral speed is 4,463 m / min, and the winding speed is 4,400 m / min. In the same manner as in Example 1, 78 dtex 24 filament polyamide 56 fiber was obtained. Table 1 shows the physical properties of the obtained fiber.
  • the spinneret is a spinneret having a discharge hole diameter of 0.20 mm and a hole length of 0.4 mm and 68 holes, and the discharge rate of the gear pump 1 is 30.42 g / min, the first roll peripheral speed is 3,600 m / min, and the second roll A 78 dtex 68 filament polyamide 56 fiber was obtained in the same manner as in Example 1 except that the peripheral speed was 3,960 m / min and the winding speed was 3,900 m / min. Table 1 shows the physical properties of the obtained fiber.
  • Example 4 Melt spinning was performed in the same manner as in Example 1 except that the spinneret was a spinneret having a round hole of ⁇ 0.40 and a hole length of 0.8 mm, but the spinning yarn was broken frequently and stable spinning could not be performed.
  • Example 5 A polyamide 66 fiber was obtained in the same manner as in Example 1 except that the polyamide 66 resin produced in Production Example 2 was used instead of the polyamide 56 resin. Table 1 shows the physical properties of the obtained fiber. Further, a tricot knitted fabric was knitted from the obtained fibers, and mold processing evaluation was performed. The evaluation results are shown in Table 1.
  • gear pump 2 spinneret 3: yarn cooling device 4: oil supply device 5: first fluid entanglement nozzle device 6: take-up roller 7: stretching roller 8: winder
  • a high value-added hygroscopic synthetic fiber having a high moisture absorption rate can be obtained without impairing the properties of the polyamide such as strength, chemical resistance and heat resistance.
  • the hygroscopic synthetic fiber of the present invention is suitable for apparel use, especially for inner wear, sportswear and the like.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Filaments (AREA)
  • Knitting Of Fabric (AREA)
  • Woven Fabrics (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
PCT/JP2011/055454 2010-03-31 2011-03-09 吸湿性繊維およびその製造方法 WO2011122272A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201180016429.4A CN102834556B (zh) 2010-03-31 2011-03-09 吸湿性纤维及其制造方法
KR1020127025362A KR101550960B1 (ko) 2010-03-31 2011-03-09 흡습성 섬유 및 그의 제조 방법
JP2011522312A JP5741434B2 (ja) 2010-03-31 2011-03-09 吸湿性繊維およびその製造方法
EP20110762512 EP2554721B1 (de) 2010-03-31 2011-03-09 Hygroskopische faser und verfahren zu ihrer herstellung
US13/636,371 US20130280513A1 (en) 2010-03-31 2011-03-09 Hygroscopic fiber, and manufacturing method for same

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JP2010-080643 2010-03-31
JP2010080643 2010-03-31

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WO2011122272A1 true WO2011122272A1 (ja) 2011-10-06

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US (1) US20130280513A1 (de)
EP (1) EP2554721B1 (de)
JP (1) JP5741434B2 (de)
KR (1) KR101550960B1 (de)
CN (1) CN102834556B (de)
WO (1) WO2011122272A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016117978A (ja) * 2014-12-19 2016-06-30 展頌股▲ふん▼有限公司 ダルポリアミド５６繊維及びその製造方法
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JP2019513911A (ja) * 2016-04-04 2019-05-30 ローディア ポリアミダ エ エスペシアリダデス エス．アー． 生分解性ポリアミド繊維、そのような繊維を得るための方法、及びそれから製造されるポリアミド物品
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JP2018527479A (ja) * 2015-09-14 2018-09-20 ローディア ポリアミダ エ エスペシアリダデス エス．アー． 改善された快適性管理を有するポリアミド繊維、その方法、及びそれから製造される物品
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EP2554721B1 (de) 2015-01-21
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