WO2007102522A1 - 複合繊維含有糸条 - Google Patents
複合繊維含有糸条 Download PDFInfo
- Publication number
- WO2007102522A1 WO2007102522A1 PCT/JP2007/054366 JP2007054366W WO2007102522A1 WO 2007102522 A1 WO2007102522 A1 WO 2007102522A1 JP 2007054366 W JP2007054366 W JP 2007054366W WO 2007102522 A1 WO2007102522 A1 WO 2007102522A1
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- WIPO (PCT)
- Prior art keywords
- yarn
- composite fiber
- composite
- fiber
- crimp
- Prior art date
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Classifications
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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
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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
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
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- 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
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/24—Bulked yarns or threads, e.g. formed from staple fibre components with different relaxation characteristics
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- 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
- Y10T428/2922—Nonlinear [e.g., crimped, coiled, etc.]
- Y10T428/2924—Composite
-
- 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
- Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
- Y10T428/2931—Fibers or filaments nonconcentric [e.g., side-by-side or eccentric, etc.]
Definitions
- the present invention relates to a composite fiber-containing yarn that develops crimps by heating, the crimp rate increases by moisture absorption or water absorption, and decreases by drying. If the invention is described in more detail, the present invention expresses crimping by heating, and the crimping rate is high even after dyeing and finishing processes.
- the present invention also relates to a composite fiber-containing yarn that can be formed by increasing water absorption and decreasing by drying, and can form a fabric having a higher bulkiness when wet than a bulk height when drying. "S 3 ⁇ 4%
- Patent Document 1 Japanese Patent Publication No. 45-28728
- Patent Document 2 Japanese Patent Publication No. 46-847
- Patent Document 3 Japanese Patent Laid-Open No. 58-46 118
- Patent Document 4 Japanese Patent Laid-Open No. 58-46 1 19
- Patent Document 5 Japanese Patent Laid-Open No. 61-19816
- Patent Document 6 Japanese Patent Laid-Open No. 2003-82543
- Patent Document 7 Japanese Patent Application Laid-Open No. 2003-41444
- Patent Document 8 Japanese Patent Laid-Open No. 2003-41462
- Patent Document 9 Japanese Patent Laid-Open No. 3-213518
- Patent Document 10 Japanese Patent Laid-Open No. 491-72485
- Patent Document 1 1 Japanese Patent Laid-Open No. 50-1 16708
- Patent Document 12 Japanese Patent Laid-Open No. 9-316744 It has been well known that natural fibers such as cotton, wool and feathers reversibly change in shape and crimp rate due to changes in humidity. Considerations have been made for a long time to provide a function for synthetic fibers. Nylon 6 and modified polyethylene terephthalate are proposed as side-by-side composite fibers in Patent Documents 1 and 2, etc. Has been made. These known composite fibers have not been put into practical use because the reversible change in crimp rate due to changes in humidity is small. .
- Patent Documents 3 and 4 etc. with improved heat treatment conditions have been proposed.
- Patent Documents 5 to 8 and the like have been proposed to which the above-mentioned conventional technology is applied.
- the above-mentioned conventional technology is not actually reaching a practical level because the change in the crimp rate becomes small after passing through processes such as dyeing and finishing.
- Patent Document 9 an attempt is made to improve the above-mentioned problems by using a polyamide component such as nylon 4 in which the polyester component and the polyamide component are joined in a flat shape and the polyamide component is a nylon.
- nylon 4 has poor yarn-making stability, and its crimping performance decreases after heat treatment.
- translucency when used as a fabric in the diversification of required properties has become a problem.
- Patent Document 10 discloses two types of yarn spun by spinning blending.
- a method of obtaining a frosted fiber by heat treatment after entanglement treatment discloses a method of using two types of polymers having different dyeability and spinning and weaving.
- the present invention has been made against the background of the above-described conventional technology.
- the purpose of the present invention is to have a property of being “not transparent” even when wet with water, and by reducing the voids of the fabric, the wind-proof and heat-retaining properties are achieved. It is an object to provide a composite fiber-containing yarn that can form a fabric with improved properties and can stably exhibit these excellent properties even after undergoing processes such as dyeing and finishing.
- the polyester component and the polyamide component are joined in a side-by-one-side type or an eccentric core-sheath type structure.
- a composite fiber yarn is included, and the composite fiber yarn is capable of expressing crimp by heat treatment, and the crimp rate is increased by moisture absorption or water absorption.
- the fiber composite yarn to crimp the 'expression subjected to boiling water treatment for 30 minutes, to this, the load of a 1.76X10- 3 CN / dtex, the 100 ° C to stabilize the crimps is subjected a heat treatment for 30 minutes, to the crimped composite fibers, under a load of 1.76X 10- 3 CNZdtex, 16 Dry crimp rate DC after heat treatment at 0 ° C for 1 minute and this dry crimp rate! )
- the wet crimp rate HC after immersing the crimped composite fiber having C in water at 20-30 ° C for 10 hours, the following formula:
- the wet-dry crimp ratio difference ⁇ C represented by the formula (1) is preferably 2.0 to 4 on the basis of the total molar amount of the acid component.
- ⁇ It is preferably made of a modified polyester copolymerized with 5 mol% of 5-sodium sulfoisophthalic acid, and its intrinsic viscosity IV is in the range of 0.30 to 0 '.' 43.
- the dry crimp rate DC is preferably in the range of 0.2 to 6.7%
- the wet crimp rate HC is preferably in the range of 0.5 to 7.0%.
- the composite fiber yarn may be composed of thick and thin composite fibers in which thick portions and details are alternately distributed along the longitudinal direction thereof.
- the dry crimp rate DC of the thick composite fiber yarn is in the range of 4.0 to 12.7%, and the wet crimp rate HC is in the range of 4.3 to 13.0%. It is preferable that it exists in.
- U% of the thick and fine composite fiber yarn is preferably in the range of 2.5 to 15.0%.
- the yarn composed of the composite fiber is combined with a yarn composed of one or more kinds of fibers having a higher shrinkage rate in boiling water than the shrinkage rate of the composite fiber in boiling water.
- the composite fiber and the high shrinkage fiber may be mixed.
- the composite yarn in the composite yarn The shrinkage in boiling water (BWSB) of the yarn made of synthetic fibers is 12-30%, and the shrinkage in boiling water (BWSA) of the high shrinkage fiber yarn is 40% or less. Difference: (BWSA) — (BWSB) is preferably 10 to 26%. .
- the composite fiber-containing yarn of the present invention is obtained by applying false twisting to a composite yarn obtained by using the yarn comprising the composite fiber as a sheath yarn and using a different filament yarn as the core yarn.
- the core-sheath type composite false twisted yarn (1) obtained in this case may be used.
- a sample having a length of 50 cm is taken from the core-sheath type composite false twisted yarn, and one end of the sample is taken.
- the yarn length difference (La ⁇ Lb) / Lax 100% ′′ is calculated
- the yarn length difference (La ⁇ Lb) / La () is preferably 5 to 20%.
- the composite fiber-containing yarn of the present invention may be a false twisted yarn (2) obtained by subjecting the composite fiber-containing yarn to false twisting. In this case, by absorbing moisture or absorbing water, Shrinkage increases.
- the false twisted composite fiber-containing yarn was subjected to boiling water treatment for 30 minutes, and 1.100X 10_ 3 CN under the load of CN Zdtex. C was subjected to dry heat treatment for 30 minutes, and further subjected to dry heat treatment at 160 under a load of 1.76 10— ⁇ / 6 kg, for 1 minute.
- the dry crimp rate TDC of the composite fiber false twisted yarn is 5.0 to 23.7%.
- the composite fiber false twisted yarn is 10 to 20 to 20 ° C in water.
- the wet crimp rate THC after immersion for 4 minutes is 4.7 to 24%, and the difference between the two is: (TH C)-(TDC).
- the crimp rate ⁇ C is 0.3-8. It is preferably in the range of 0%.
- the conjugate fiber contained in the conjugate fiber-containing yarn of the present invention can develop crimp by heat treatment, and this crimp increases its crimp rate by moisture absorption or water absorption, and is dried. Therefore, the fabric such as a knitted fabric manufactured using the composite fiber-containing yarn of the present invention has a property of seeing through due to moisture absorption or water absorption. In addition, it has the characteristics that it does not increase, and it is windproof and heat-insulating. Even if it is subjected to processing such as dyeing and finishing, it does not change the above characteristics. Therefore, the composite fiber-containing yarn of the present invention is useful as a raw material for textiles such as clothing.
- the composite fiber contained in the composite fiber-containing yarn of the present invention comprises a polyester component comprising a polyester resin and a polyamide component comprising a polyamide resin.
- This composite fiber is bonded to a side structure or an eccentric core-sheath structure, and this composite fiber can express crimps by heat treatment, and crimped composite fibers that exhibit crimps.
- the shrinkage ratio of is increased by moisture absorption or water absorption.
- polyester component constituting the composite fiber of the present invention examples include polyethylene terephthalate, poly (ethylene terephthalate), polybutylene terephthalate, and the like. Among them, polyethylene terephthalate is used from the viewpoint of cost and versatility. Evening rates are more preferred.
- the above polyester component is preferably a modified polyester in which 5-sulfoisophthalic acid is copolymerized. At that time, if the copolymerization amount of 5-sodium sulfoisophthalic acid is too large, peeling will hardly occur at the bonding interface between the polyamide component and the polyester component, but excellent crimping performance will not be obtained.
- the copolymerization amount of 5_sodium sulfoisophthalic acid is preferably 2.0 to 4.5 mol%, more preferably 2.3 to 3.5 mol%.
- the intrinsic viscosity of the polyester component is preferably 0.30 to 0.43, more preferably 0.35 to 0.41.
- the polyamide component is not particularly limited as long as it has an amide bond in the main chain, and examples thereof include nylon 4, nylon 6, nylon 66, nylon 46, nylon 12, and the like. Of these, nylon 6 and nylon 66 are particularly preferred from the standpoint of yarn production stability and versatility.
- the polyamide component may be copolymerized with other components based on these components.
- both components described above include titanium oxide and carbon black.
- Pigments such as mulberry, known antioxidants, antistatic agents, light-proofing agents, and the like may be included.
- the conjugate fiber of the present invention is a conjugate fiber having a fiber cross-sectional shape in which the polyester component and the polyamide component are joined.
- a composite form of the polyamide component and the polyester component a form in which both components are joined in a side-by-side shape is preferable from the viewpoint of crimp development.
- a non-circular cross section may be employed, for example, a triangular cross section or a square cross section.
- a hollow portion may exist in the cross section of the composite fiber.
- the ratio of the polyester component to the polyamide component in the fiber cross section is preferably 30Z70 to 70/30, more preferably 60Z40 to 40Z60, based on the area.
- the composite fiber-containing yarn of the present invention is a yarn made of a composite fiber (100% of composite fiber)
- the yarn made of the composite fiber is subjected to boiling water treatment for 30 minutes to be crimped. expressed, in this, 1.76Kaiganma0- 3 in under a load of CNZdtex, 100 ° stabilize crimp heat-treated by subjecting 30 minutes C t, this crimped composite fibers, under a load of 1.76xlO_ 3 CN / dtex , 160 after the heat treatment of 160 minutes for 1 minute and the crimped crimped fiber after soaking the crimped composite fiber having this dry crimp rate DC in water at 20-30 ° C for 10 hours
- the rate HC the following formula:
- the wet-dry crimp rate difference AC is more preferably in the range of 0.3 to 6.8%.
- a knitted fabric manufactured from yarn containing composite fibers having such crimp characteristics As for the fabrics such as the above, the crimp rate of the composite fibers contained in each fabric increases due to moisture absorption or water absorption. Therefore, even if the fabric is wetted with water, the transparency (translucency) does not increase. The void portion of the fabric is reduced, and wind resistance and heat retention are improved. This property does not deteriorate even after the fabric has undergone processing steps such as dyeing and finishing.
- the dry crimp rate DC is preferably 0.2 to 6.7%. It is more preferably ⁇ 3.0%, even more preferably 0.3 to 2.5%, and still more preferably 0.4 to 2.3%. Above crimp rate! ) When C is less than 0.2%, the resulting yarn becomes flat, and when it is used as a fabric, the texture becomes worse. On the other hand, when the above-mentioned crimp rate DC exceeds 6.7%, the crimp rate DC becomes larger than the crimp rate HC after immersion in water, and the fabric cannot be made difficult to see through by getting wet with the target water. In addition, since the fabric has large eyes and large gaps, it may not be possible to obtain a fabric having excellent windproof properties and heat retaining properties.
- the wet crimp ratio HC after immersion in water is preferably 0.5 to 7.0%, more preferably 0.8 to 6.5%, and even more preferably 1.0 to 6. 0%. If HC is less than 0.5%, the crimp rate itself after immersion in water is too low, and the desired see-through prevention effect, windproof property and heat retention property may be insufficient. On the other hand, if the HC value exceeds 7.0%, the fabric shrinks greatly when it contains water, which may be impractical and may reduce the texture.
- the difference ⁇ C between HC and DC is preferably 0.3 to 6.8%, more preferably 0.7 to 5.5%, and still more preferably 0.8 to 5.0%. %.
- ⁇ C is less than 0.3%, there is little effect of improving the crimping rate after immersion in water, and it is possible to obtain a fabric having good waterproofness and heat retention, wet with the target water and difficult to see through. There are things that cannot be done. On the other hand, if ⁇ C exceeds 6.8%, it is not practical because the fabric shrinks greatly when it contains water. The texture may also be poor.
- the polyester component and the polyamide component may be joined in a side-pied-side type, and when the two components form an eccentric core-sheath type structure, It is preferable that the core portion is constituted by a polyester component and the sheath portion is constituted by a polyamide component.
- the polyester component when the conjugate fiber used in the present invention develops crimp by heat treatment, the polyester component is located inside the curved portion of the crimped conjugate fiber, and the polyamide component is located outside. In order to do this, it is necessary that the thermal shrinkage rate of the polyester component in the uncrimped conjugate fiber is larger than the thermal shrinkage rate of the polyamide component.
- the water absorption elongation rate of the polyamide component is larger than the water absorption elongation rate of the polyester component.
- the polyamide component (outside of the curve) is stretched more than the polyester component (inside of the curve), so that the degree of crimp is increased.
- the crimp rate is the ratio of the difference between the length of the crimped fiber when the crimp is stretched and the apparent length of the crimped fiber to the length when the crimp is stretched (% ) Means.
- the heat shrinkage rate means a ratio (%) of a difference obtained by subtracting the length after heat treatment from the length before heat treatment of the specimen to the length before heat treatment.
- the water absorption elongation rate means the ratio (%) of the difference obtained by subtracting the length before water absorption from the length before and after water absorption of the test sample to the length before water absorption.
- a positive (+) water absorption elongation indicates that the fiber has stretched due to water absorption, and a negative (one) indicates that the fiber has contracted due to water absorption.
- Both the polyester component and the polyamide component that are formed must have an appropriate degree of crystallinity, and if it is too high, the above-described crimpability, heat shrinkability, P, and water elongation properties will not be achieved. In some cases, if it is too low, the tensile strength is insufficient, and in the heat-stretching process, it becomes easy to cut and the stretchability may be insufficient.
- the single fiber fineness of the composite fiber used in the yarn of the present invention and the total fineness of the composite fiber-containing yarn may be appropriately set according to the use.
- the composite fiber The single fiber fineness is preferably 1 to 6 dt ex, and the total fineness of the composite fiber-containing yarn is preferably 40 to 200 d t ex.
- the composite fiber-containing yarn of the present invention may be entangled, and the constituent fibers may be entangled with each other.
- the high-viscosity component side and the low-viscosity side discharge holes are separated and the high-viscosity side discharge port is Using a spinneret with a reduced linear velocity (with a larger discharge cross-sectional area), let the molten polyester pass through the high-viscosity side discharge hole, and let the molten polyamide pass through the low-viscosity side discharge hole side.
- the unstretched composite fiber taken out from the melt spinning apparatus may be wound once and then rolled back, and may be subjected to stretching and heat treatment as necessary, or the unstretched fiber is not taken up. In addition, it is directly subjected to a stretching process, and at the same time or thereafter to a heat treatment process.
- the melt spinning speed is preferably 800 to 3500 mZ, more preferably 1000 to 2500 m. Minutes.
- unstretched fibers are stretched using a stretching machine that stretches between two nozzles, and the unstretched composite fibers formed by the melt spinning machine are directly (without scraping). Further, it may be stretched, and if necessary, heat-treated simultaneously with stretching.
- the supplied undrawn conjugate fiber is preheated to a temperature of 50 to 100 ° C., and the preheated conjugate fiber is sent out with the first roller.
- the film may be stretched between the second roller and subjected to heat treatment in a second roller heated to a temperature of 8.0 to 170.degree. C., preferably 80 to 140 ⁇ .
- the draw ratio between the first and second rollers may be set so as to give the desired heat-crimping property. For example, it is preferably 1.2 to 3.0. 1.5 to 2.9 is more preferable.
- the composite fiber (uncrimped) is heated to develop crimp.
- a polyester component is located inside the curved portion of the resulting crimped fibers, and a polyamide component is located outside.
- the polyamide component absorbs water, and due to the plasticizing effect of this water, the polyamide component elongates over time, so the crimped state of the crimped fiber is It changes over time and is unstable. Therefore, this crimped fiber is subjected to a dry heat treatment to remove moisture and stabilize the crimped state of the crimped composite fiber. For this drying, for example, it is preferable to dry heat at 100 ° C. for 30 minutes and further to perform a heat treatment for 1 minute.
- the composite fiber-containing yarn of the present invention may be composed only of the composite fiber, or the composite fiber yarn and a fiber yarn different from the composite fiber are combined to mix both fibers. It may be what you did.
- the composite fiber-containing yarn of the present invention may be a composite fiber-containing false twist yarn obtained by performing false twisting, if necessary.
- the composite fiber-containing yarn of the present invention is a yarn comprising a composite fiber yarn composed only of the composite fiber and a fiber (which may be a composite fiber) having a different cutting elongation. It may be a composite fiber-containing false-twist yarn obtained by subjecting a strip to composite pre-firing.
- the composite fiber-containing yarn of the present invention can be used for various apparel applications. For example, when used for moisture absorption, water absorption, such as swimming garments, other sports garments, inner garments, uniform garments, etc., it exerts an effect of preventing see-through (translucency) when wet, windproof, heat retention Because it is excellent, it can show high comfort when worn.
- water absorption such as swimming garments, other sports garments, inner garments, uniform garments, etc.
- the above-mentioned composite fiber-containing yarn of the present invention may be used together with natural fiber yarns, and in combination with polyurethane fiber yarns or polytrimethylene terephthalate silk fiber yarns, the use of stretch yarns or fabrics May be used.
- the composite fiber-containing yarn of the present invention includes, as one embodiment thereof, a yarn containing thick composite fibers in which thick portions and details are alternately distributed along the longitudinal direction.
- a yarn containing a crimped thick and fine composite fiber obtained by subjecting such a thick and fine composite fiber to heat treatment When a fabric such as a knitted fabric is produced from the yarn, When it is wetted by water, the thick portions of the fine composite fibers are distributed alternately with the details, which promotes an increase in the rate of crimp due to moisture absorption and water absorption. An increase in transparency can be prevented.
- the dry crimp ratio DC is preferably 4.0 to 12.7%, more preferably 4.0 to 12.0%, and still more preferably. Is 4.5 to 10.0%, more preferably 5.0 to 8.5%.
- the crimp rate DC is less than 4.0%, the texture of the fabric tends to deteriorate.
- the crimp rate DC exceeds 12.7%, the crimp rate DC is The crimp rate after water immersion tends to be larger than HC, the see-through prevention property is lowered, and the gaps in the fabric are reduced, resulting in insufficient windproof and heat retention.
- the wet crimp ratio HC after immersion in water is preferably 4.3 to 13.0%, more preferably 5.0 to 13.0%, and still more preferably 5.5 to 11. 0%, more preferably 6. 0 to 10.5%.
- the crimping ratio HC is less than 4.3%, the crimping ratio after immersion in water is too low, and the intended effect of preventing see-through and the effect of improving wind resistance and heat retention may be insufficient. If the shrinkage ratio HC value exceeds '13 .0%, the fabric may shrink significantly when it contains water, which may be impractical and the texture may be reduced.
- the difference ⁇ C between HC and DC is preferably 0.3 to 8.0%, more preferably 1.0 to 5.5%, and most preferably 1.5 to 4. %.
- C is less than 0.3%, the effect of improving the crimp rate after immersion in water is small, and it is difficult to see through when wet with water, and the fabric voids are reduced to improve wind resistance and heat retention. It may not be obtained.
- AC is more than 8.0%, the fabric may shrink greatly when it contains water, which may be impractical and may reduce the texture.
- the thick composite fiber-containing yarn of the present invention is excellent not only in functionality but also in texture. That is, since the conjugate fiber of the present invention has a thick portion and details in the longitudinal direction, if the yarn including this is a fabric, it exhibits a span-like texture.
- the thick and thin composite fibers U% indicating the degree of is preferably 2.5 to 15.0%, more preferably 3.5 to 14.5%, and still more preferably 4.0 to 13.5%. When U% is less than 2.5%, it is not preferable because the fabric does not have a spun-like texture, and the property of preventing seepage when moisture is absorbed tends to be lowered. On the other hand, when U% exceeds 15%, the strength of the composite fiber is lowered, and its handling becomes difficult, which is not preferable.
- the total fineness of the fine composite fiber yarn of the present invention can be 40 to 200 6 mm as a normal clothing material and 1 to 6 dtex.
- the high viscosity component side as described in, for example, JP-A-2000-144518 -And low-viscosity discharge holes are separated, and the discharge line speed on the high-viscosity side is reduced (the discharge cross-sectional area is increased). It can be obtained by allowing molten polyamide to pass through the viscosity side discharge hole side for bonding and cooling to solidify.
- the drawn yarn can be stretched either by winding it after it has been wound, or by separate heat treatment if necessary, or by stretching it without first winding it, or by direct heat treatment if necessary. This method can also be adopted.
- As the spinning speed a relatively low speed of 800 to 3500 mZ is preferably employed.
- the first roller temperature should be less than 60 ° C. It is preferred to preheat the yarn. If the preheating temperature exceeds 60, it may be difficult to obtain the desired thickness.
- the second roller is heat-set at preferably 80 to 170 ° C, more preferably 80 to 140 ° C.
- the stretching ratio performed between the first nozzle and the second roller should be set taking into account the above-mentioned thickness, for example, the elongation at break of unstretched composite fiber yarn.
- the thick and thin composite fiber yarn of the present invention can be easily obtained by setting the low-magnification drawing condition so that it is at least 55% or more in the thick and thin composite fiber yarn of the present invention.
- this is first treated with boiling water.
- This provides a crimp with the polyester component placed inside.
- the polyamide grows due to the plasticizing effect of water, so that the crimp itself changes with time and becomes unstable. Therefore, the yarn crimped with boiling water is dry-heated to remove moisture and stabilize the crimp.
- the above-mentioned composite fiber is treated with boiling water for 30 minutes, and further subjected to dry heat treatment at 100 ° C.
- the crimped and stabilized thick composite fiber-containing yarn fabric can be obtained as a fabric having the desired performance even if it is subjected to heat treatment in the usual finishing process.
- the thick composite fiber of the present invention can be used alone or as a mixed yarn mixed with other fibers. Moreover, it can be further used as a false twisted yarn by further false twisting if necessary, and it can also be used as a composite false twist with different elongation.
- the thick composite fiber yarn of the present invention can be used for various uses for clothing such as swimwear, various sportswear, inner materials, It can be particularly preferably used in applications that require comfort such as uniforms. '
- this thick and fine composite fiber and natural fiber can be further exerted, and further, by combining with urethane or polytriethylene terephthalate yarn, further stretchability can be imparted. It may be used.
- One embodiment of the composite fiber-containing yarn of the present invention is ⁇ , and the yarn comprising the composite fiber has one or more boiling water shrinkage ratios higher than the shrinkage ratio of the composite fiber in boiling and boiling water. It includes a composite fiber-containing mixed yarn formed by mixing yarns made of fibers and mixing the composite fiber and the high-shrinkage fiber.
- the composite fiber-containing mixed yarn of the above aspect has the property of “not transparent” even when wet with water, and at the same time, exhibits excellent windproof properties and heat retention properties.
- the blended yarn has a feeling of swelling and has a silky touch and is excellent not only in the texture but also in the new single filament yarn and the blended yarn that the conventional yarn does not have. It has the effect of functionality.
- the shrinkage ratio (BWSA) of the highly shrinkable fiber in boiling water is high, but it is preferably 40% or less.
- the shrinkage ratio (BWSB) of the composite fiber in boiling water is preferably 12 to 30%, more preferably 13 to 28%, and still more preferably 14 to 26%.
- the shrinkage rate (BWSB) of the composite fiber in boiling water is less than 12%, it is necessary to increase the heat treatment temperature to reduce the shrinkage rate, which is preferable because yarn breakage in the production of blended yarn increases. Absent.
- the shrinkage (BWSB) of the composite fiber in boiling water exceeds 30% In such a case, the texture tends to be rough, which is not preferable.
- the composite fiber is a filament whose crimp rate increases by moisture absorption or water absorption.
- the inventors of the present invention have a blended yarn having such a configuration that the fabric does not become “translucent” even when it gets wet with water, and the fabric is clogged at that time, and is excellent in windproof and heat retaining properties. I found out. Even when wet, it has a feeling of swelling.
- the ⁇ C force When the ⁇ C force is less than 0.5%, the effect of increasing the crimp rate due to moisture absorption or water absorption (improvement of see-through and wind insulation) is insufficient, and if it exceeds 5.0%, Mixed fiber due to moisture absorption or water absorption
- the shrinkage rate of the yarn or fabric may become excessively high and the texture may be impaired.
- a fiber entanglement processor such as an air entanglement machine (inter It is possible to use a method of mixing fibers by spraying air jets.
- High-shrinkage fiber yarns are high-shrinkage fibers made of a single polyester polymer, high-shrinkage composite fibers (those having the same composite structure as the composite fibers used as the low-shrinkage component), polyethylene terephthalate, High shrinkage composite fiber made of methylene terephthalate, high shrinkage composite fiber made of polyethylene terephthalate and polybutylene terephthalate, etc., but from a cost standpoint, high shrinkage made of a single polyester polymer It is preferable to use fibers. Examples of such a single polyester polymer fiber include high shrinkage fibers such as polyethylene terephthalate, polytrimethylene terephthalate, and polybutylene terephthalate. Among these, the use of polyethylene terephthalate fiber is preferable from the viewpoint of cost.
- the total fineness is preferably 40 to 200 d t ex, and the single fiber fineness of the highly shrinkable fiber and the composite fiber is 1 to 6 dt ex, respectively. Preferably there is.
- the above-mentioned mixed yarn can be used alone, or can be further mixed with other fibers or combined.
- the other fibers may be natural fibers, or may be used in combination with urethane fibers and polytrimethylene terephthalate fibers to further impart stretch properties.
- the composite false twisted yarn of the present invention can be used for various applications for clothing, such as, for example, various sportswear, inner material, unifoam, etc. It can be particularly preferably used in applications that require comfort.
- the composite fiber-containing yarn of the present invention includes, as one embodiment thereof, the composite A core-sheath type composite false twisted yarn obtained by false twisting a composite yarn obtained by using a yarn made of fibers as a sheath yarn and using a different filament yarn as the core yarn. Is included. A sample of 50 cm in length is taken from this core-sheath type composite false twisted yarn, and a load of 0.176 cN / dte x (0.2 gZde) is applied to one end of this sample to hang it vertically, and marking is performed at intervals of 5 cm. Remove the load and cut off the marking part to prepare 10 measurement samples.
- the single fiber (filament) in the sheath part and the fiber (filament ⁇ ) in the core part Ten pieces were taken out, each single fiber was loaded with 0.03cN / dtex (1 Z30gZde), suspended vertically, the length of each was measured, and the measured values of 10 samples in the core and sheath were measured.
- the average value is La (sheath thread length) and Lb (core thread length), respectively.
- Thread length difference (La-Lb) / Lax 100%
- the yarn length difference (La-Lb) / La (%) is preferably 5 to 20%.
- the above-described composite fiber-containing core-sheath type composite false twisted yarn has a property of “not transparent” even when wet with water, and at the same time, exhibits windproof and heat retaining properties.
- this composite false twisted yarn is not only spun-like, swelled, soft, and excellent in texture, but also has the effects of new functionality that conventional composite false-fired yarn does not have. It is what you play.
- the composite fiber-containing core-sheath type composite false-twisted yarn is composed of a sheath yarn and a core yarn, and thereby has a feeling of swelling like a wool spun yarn and can exhibit a soft texture.
- the average yarn length of the fibers constituting the sheath yarn is 5 to 20% longer than the average yarn length of the fibers constituting the core yarn. More preferably 8-15% longer.
- the fibers constituting the sheath yarn are mainly arranged in the sheath part of the composite false twisted yarn, and the fibers constituting the core yarn are mainly arranged in the core part.
- the yarn length difference between the fibers constituting the sheath yarn and the fibers constituting the core yarn is less than 5%, it is not preferable because the texture of the resulting fabric is unlikely to become spiky.
- the difference in yarn length exceeds 20%, the texture of the resulting fabric tends to be fluffy and undesirably causes frequent yarn breakage during false twisting.
- the sheath yarn is composed of a composite fiber whose crimp rate increases by moisture absorption or water absorption.
- the present inventors have found that the composite false-twisted yarn having such a configuration does not allow the fabric to be “translucent” even when wet with the yarn, and that the fabric is clogged and has excellent windproof and heat retention properties. I found out. Even when wet, it has a feeling of swelling.
- the composite fiber used for the sheath yarn of the composite false twisted yarn and having a crimp rate increased by moisture absorption or water absorption has a side-by-side cross-sectional shape in which a polyester component and a polyamide component are joined. Or an eccentric core-and-sheath type composite fiber.
- the breaking elongation of the sheath yarn should be 60-350% It is preferably 100 to 300%. If the breaking elongation of the sheath yarn exceeds 350%, the yarn length difference from the core yarn tends to exceed 20%, the texture tends to be poor, and yarn breakage tends to occur frequently during composite false twisting. On the other hand, when the breaking elongation of the sheath yarn is less than 60%, the yarn length difference tends to be less than 5%. It becomes difficult to obtain a desired texture, and furthermore, an increase in crimp rate due to moisture absorption is reduced.
- the composite fiber-containing core-sheath-type composite false twisted yarn composite fiber can be produced by the above-described method, but it is preferable to wind up at a high speed without performing a drawing heat treatment after the melt yarn process, and the spinning speed is Good results are obtained when ⁇ ⁇ ⁇ ⁇ / min. If the spinning speed is less than 1000 m / min, the resulting composite fiber may have a too high breaking elongation, while if the spinning speed exceeds 4500 m / min, the yarn breaks frequently during spinning. There is.
- the core yarn for example, a single component of polyester, a composite fiber having the same composition as the sheath yarn, polyethylene terephthalate and polytrimethylene terephthalate A composite fiber made of or the like can be used.
- a polyester single component is preferable from the viewpoint of cost.
- polyethylene terephthalate poly (ethylene methylene terephthalate), poly (propylene terephthalate) and the like can be used, but polyethylene terephthalate is more preferable from the viewpoint of cost.
- the total fineness of the composite false twisted yarn should be 40-200 d t ex for ordinary clothing materials, and the single yarn fineness of the core yarn and sheath yarn should be 1-6 dt ex. Can do.
- the core yarn and sheath yarn described above are aligned, preferably air entangled, and composite false twist processing is performed with a known false twist processing machine. Can be manufactured. At that time, a disk-type or belt-type false twisting device can be used as the false twisting device.
- the composite false twisted yarn can be used alone, as well as mixed or combined with other fibers.
- the composite false twisted yarn and the natural fiber can be further effective, and further, in combination with urethane or polytrimethylene terephthalate, it can be used with further stretch. It doesn't matter.
- the composite false twisted yarn can be used for various applications for clothing.
- various sportswear, inner materials, uniforms, etc. are required to be suitable for permeability, wind resistance, heat retention, etc. In use, it can be used particularly preferably.
- the composite fiber-containing yarn of the present invention includes, as one embodiment thereof, a composite fiber-containing false twisted yarn obtained by subjecting it to false twisting and increasing the crimp rate by moisture absorption or water absorption.
- the dry crimp rate TDC of the composite fiber false-twisted yarn after applying a heat treatment of 160 for 1 minute under a load of 1.76 X l O_ 3 CN / dt ex is 5.0 to 23.
- the wet crimp rate-THC after being immersed in water at 20 to 30 ° C. for 10 minutes in the composite fiber false twisted yarn is 5.3 to 24%, the difference between the two : It is preferable that the crimp ratio ⁇ O represented by (THC)-(TDC) is in the range of 0.3 to 8.0%.
- the above-mentioned composite fiber-containing false twisted yarn has the characteristics of “not transparent” even when wet with water, and has excellent windproof and heat retaining properties.
- the preliminarily processed yarn that had only been used is given a function and effect that has never been seen before.
- the crimp rate increases due to moisture absorption or water absorption in the false twisted yarn containing the upper air composite fiber.
- the present inventors have found that the false twisted yarn having such crimp characteristics does not cause the fabric to be “translucent” even when wet, and the fabric is clogged at that time, resulting in windproof and heat retaining properties. Is also excellent I found out.
- the polyester component is a modified polyester in which 5-sulfoisophthalic acid is copolymerized, and the modified polyester has an appropriate intrinsic viscosity. Specifically, the viscosity of the polyester component increases due to the molecular crosslinking effect of 5-sulfoisofuric acid, which controls spinnability and false twisting properties, but the intrinsic viscosity of the polyester component is reduced.
- the intrinsic viscosity of the polyester component is preferably 0.30 to 0.43, more preferably 0.35 to 0.41 as described above.
- the copolymerization amount of 5-sodium sulfoisophthalic acid is As mentioned above, 2.0 to 4.5 mol% is preferable, and 2.3 to 3.5 mol% is more preferable.
- Both components described above may contain pigments such as titanium oxide and car pump racks, known antioxidants, antistatic agents, and light resistance agents.
- the cross-sectional shape of the composite fiber may be a circular cross-section or a non-circular cross-section.
- a non-circular cross-section for example, a triangular cross section or a square cross section can be adopted.
- a hollow portion may exist in the cross section of the composite fiber.
- the false twisted yarn was treated with boiling water for 30 minutes and further subjected to dry heat treatment at 100 ° C for 30 minutes to develop crimps. It is preferable that the fibers subjected to the dry heat treatment for minutes satisfy the following requirements at the same time as described below: crimp rate D crimp rate HC after immersion in water, and difference ⁇ C between these crimp rates.
- the crimp rate TDC is preferably 5.0 to 23.7%-, more preferably 5.0 to 23%, and even more preferably 6.0 to 20%, even more preferable. Is 7.0-15%.
- the crimp rate TDC is less than 5.0%, it is not preferable because a fabric excellent in bulkiness cannot be obtained.
- the crimping rate TDC is more than 23.7%, it is not preferable because peeling is likely to occur at the interface between the polyester component and the polyamide component in false twisting that provides such a high crimping rate.
- the crimp ratio THC after immersion in water is preferably 5.3 to 24%, more preferably 7.0 to 24%, still more preferably 8.0 to 20%, and still more preferably 9.0. ⁇ 18%.
- THC crimping rate
- the difference ⁇ between THC and TDC is preferably 0.3 to 8.0%, more preferably 0.5 to 7.0%, and even more preferably 0.8 to 6.0%. More preferably, it is 1.0 to 5.5%.
- a TC is less than 0.3%, the effect of increasing the crimp rate after immersion in water is small, and it becomes difficult to obtain a fabric that is not easily permeable when wet and has excellent windproof and heat retention properties.
- 4 TC exceeds 8.0. 0%, the fabric shrinks greatly when it contains water, which is not preferable because the texture also decreases.
- the total fineness of the composite fiber-containing false twisted yarn can be 40 to 200 d t ex for ordinary clothing materials, and 1 to 6 d t ex for single yarn fineness. In addition, you may perform a confounding process as needed.
- the above-mentioned composite fiber can be produced by the above-described method, but it is preferable that the spinning speed is a relatively high speed of 2000 to 4000 mZ, and in this way, a composite fiber yarn that is easy to false twist is processed. Can be obtained.
- a conventional false twisting device can be used, and a conventional twisting device, that is, a disk method or a pelt-type twisting device can be used.
- the above-mentioned composite fiber-containing false twisted yarn may be used alone, or may be used in combination with other fibers or mixed.
- a composite fiber-containing false twisted yarn and a natural fiber yarn may be used in combination, or in combination with urea yarn or polytrimethylene terephthalate fiber, You may form the thread
- the composite fiber-containing false twisted yarn can be used for various apparel applications. For example, when used in sportswear, inner materials, uniforms, etc., its moisture-proof, wind-proof, heat-retaining, and see-through when wet Preventive effects can be effectively demonstrated.
- Polyamide was measured at 30 ° C using m-cresol as a solvent.
- Polyester was measured at 35 using orthochlorophenol as a solvent.
- a 2700 dtex casserole was made from the composite fiber and treated in boiling water for 30 minutes under a light load of 6 g (2, 2 mg / .dtex). Moisture was removed with a filter paper and then dried for 30 minutes at 100 ° C under a load of 6 g (2.2 g / dtex) to remove the water. Further, this casserole was heat-treated for 1 minute at 160 ° C. under a load of 6 g (2.2 mg / dtex) to obtain a measurement sample.
- the measurement sample (force cell) subjected to the above treatment was treated for 5 minutes under a load of 6 g (2.2 mg / dtex), then this skein was taken out and another 600 g (total 606 ⁇ : 2.2 mg Zdtex + 220ffig)
- a load of / dteiO was applied and left for 1 minute to determine the length LO of the casket, then the load of 600 g was removed, and the load was left for 1 minute under a load of 6 g (2.2 mg / dtex).
- L 1 was obtained
- the crimp rate DC was obtained from the following formula.
- a composite fiber was knitted into a tube, boiled with a cationic dye, washed with water, set in a dry heat at 160 ° C for 1 minute, and used as a measurement sample. Water is dropped on this tubular knitting, and the situation of the water dripping part and its surroundings is investigated with a side photograph (magnification 200) of the tubular knitting, and the swelling or shrinkage of the stitch caused by the water dripping and the sense of sheerness of the tubular knitting are visually observed Judged by.
- Polyethylene terephthalate is melted at 270 and 290, respectively, and extruded using a composite spinneret described in JP 2000-144518 A at a discharge rate of 11.7 g / min.
- the yarn is preheated with the first neck at a speed of lOOOOmZ for a temperature of 60 ° C, and then at a speed of 2800m // min for a temperature of 130 ° C.
- the spinning hole is composed of two arcuate slits ⁇ A and B disposed at substantially the same circumference at intervals (d),
- the area SC is a spinning nozzle hole that satisfies the following formulas (1) to (4).
- the polyethylene terephthalate was extruded from the slit A side, and the nylon 6 was extruded from the slit B side.
- a composite fiber yarn was obtained in the same manner as in Example 1 except that the temperature of the second roller in Example 1 was changed as shown in Table 1. Table 1 shows the measurement results.
- Example 1 In Example 1, except that the speed of the second roller was changed as shown in Table 1. Produced a composite fiber yarn in the same manner as in Example 1. Table 1 shows the measurement results.
- a composite fiber yarn was obtained in the same manner as in Example 1 except that the roller temperature in Example 2 was changed as shown in Table 1. The measurement results are shown in Table 1.
- a composite fiber yarn was obtained in the same manner as in Example 1 except that the copolymerization amount of 5-polysulfoisophthalic acid of the modified polyethylene terephthalate in Example 1 was changed as shown in Table 1. Table 1 shows the measurement results.
- a composite fiber yarn was obtained in the same manner as in Example 1 except that the intrinsic viscosity 7 of the modified polyethylene terephthalate in Example 1 was changed as shown in Table 1. Table 1 shows the measurement results.
- the yarn After applying the oil, the yarn is preheated with a first roller at a rate of 1800 m / min and at a temperature RT (room temperature), then stretched and heat-treated (stretched) between a second roller heated at a speed of 3050 m / min and a temperature of 130 Magnification 1.6 9 times) to obtain a thick composite fiber of 110dtex24iil 'wound up.
- the spinning and drawing properties were extremely good, and the yarn was spun continuously for 10 hours, and there was no yarn breakage. The results are shown in Table 2.
- a composite fiber was obtained in the same manner as in Example 13 except that the speed of the first roller was changed as shown in Table 1.
- Table 2 shows the measurement results.
- a composite fiber was obtained in the same manner as in Example 13 except that the temperature of the first roller was changed as shown in Table 1.
- Table 2 shows the measurement results.
- a composite fiber was obtained in the same manner as in Example 13 except that the temperature of the second roller was changed as shown in Table 1.
- Table 2 shows the measurement results.
- a composite fiber was obtained in the same manner as in Example 13, except that the copolymerization amount of 5-sodium sulfoisophthalic acid as a modified polyethylene terephthalate component was changed as shown in Table 1.
- Table 2 shows the measurement results.
- Table 1 shows the intrinsic viscosity [??] of the modified polyethylene terephthalate component.
- a composite fiber was obtained in the same manner as in Example 13 except that the above was changed.
- Table 2 shows the measurement results. '
- a composite fiber was obtained in the same manner as in Example 13 except that the discharge amount of each component and the speed of the second roller were changed as shown in Table 1.
- Table 2 shows the measurement results.
- the composite fiber was knitted, boiled with a cationic dye, washed with water, set in a dry heat of 160 ° C for 1 minute, and used as a measurement sample, and the tactile sensation was evaluated and displayed as shown below. . .
- the yarn is taken up at a speed of lOOOOmZ, preheated with a first roller at a temperature of 60 ° C, and then at a speed of 2800 mZ and heated between a second neck and a heater heated to a temperature of 130.
- the film was subjected to stretching heat treatment (stretching ratio 2.80 times) and wound up to obtain a composite fiber of 83dtex24fil.
- a polyethylene terephthalate fiber that is a highly shrinkable component was prepared as follows. Polyethylene terephthalate containing 0.3% of titanium dioxide as a quenching agent is copolymerized with an intrinsic viscosity of 0.64 and melted at 285 and extruded at a discharge rate of 12 g. Cooling and solidification is an oil. Was applied, and the yarn was wound at a spinning speed of 1200 m / min to obtain an undrawn yarn of 100 dtexl2fil. This unstretched film is stretched by a normal stretching machine to 33d tex Polyethylene terephthalate fiber, which is a 12-1 high shrinkage filament, was obtained. The stretching conditions are as follows:
- a mixed yarn was obtained in the same manner as in Example 28 except that the temperature of the first roller was changed as shown in Table 3.
- Table 3 shows the measurement results.
- the second throat ladle A mixed yarn was obtained in the same manner as in Example 28 except that the speed was changed as shown in Table 3.
- Table 3 shows the measurement results.
- Example 39 and 40, Comparative Examples 25 and 26]-A blended yarn was obtained in the same manner as in Example 28 except that the copolymerization amount of 5-sulfoisophthalic acid as the modified polyester component was changed as shown in Table 3. It was. Table 3 shows the measurement results.
- a blended yarn was obtained in the same manner as in Example 28 except that the intrinsic viscosity [77] of the modified polyester component was changed as shown in Table 3.
- Table 3 shows the measurement results.
- Thread breakage was 0 to 1 time during continuous blending for 10 hours
- Thread production is a little bad.
- the yarn-making property is extremely poor.
- the shrinkage of high shrinkage fiber in boiling water (BWSA) and the shrinkage of composite fiber in boiling water (BWSB) were determined by the following methods.
- a cassette was made with a measuring machine with a frame circumference of 1.125 m, and the cassette length (L 4) was measured with a load of 27.7 cNZdtex. Remove the load from the casserole and treat in boiling water for 30 minutes. After wiping off the water, the length (L 5) after standing at room temperature for 1 hour was measured and calculated from the following formula.
- -Shrinkage (%) (L 4 — L 5) L 4 X 100
- the mixed yarn was knitted in a cylinder, boiled with a cationic dye, washed with water, set in a dry heat of 160 ° C for 1 minute, and used as a measurement sample. Water is dropped on this tubular knitting, and the situation of the water dripping part and its surroundings is investigated with a side photograph (magnification 200) of the tubular knitting, and the swelling or shrinkage of the stitch caused by the water dripping and the sense of sheerness of the tubular knitting Judgment was made with the naked eye.
- the mixed yarn was knitted in a tube, boiled with a cationic dye, washed with water, set in a dry heat of 160 ° C for 1 minute, used as a measurement sample, and evaluated by its tactile sensation.
- the texture is hard, or paper-like and no swelling. .
- the mixed yarn was placed in water, and the number of entanglements was calculated with the naked eye and converted to the number per 1 m.
- the intrinsic viscosity [??] is 0.64 and contains 0.3% by weight of titanium oxide.
- Polyethylene terephthalate is melted at 300 ° C, extruded using a spinneret with 12 discharge holes with a hole diameter of 0.30 ⁇ at a discharge rate of 40.3gZ, cooled and solidified, and then wound at a spinning speed of 3300m / min.
- An undrawn yarn of 122dtex24fil was obtained.
- the resulting undrawn yarn has a strength of 2.5 cNZdtex and an elongation of 135%, 7 pieces. .
- Processing temperature 140 ° C uses non-contact heater (effective length 90cm) D / Y 1.8
- a composite false twisted yarn was obtained in the same manner as in Example 43 except that the spinning speed was changed as shown in Table 4.
- Table 4 shows the measurement results.
- a composite false twisted yarn was obtained in the same manner as in Example 43 except that the amount of copolymerization of the modified polyester component 5-sulfoisophthalic acid was changed as shown in Table 4. Table 4 shows the measurement results.
- Example 57 and 58 Comparative Examples 37 and 38
- a composite false twisted yarn was obtained in the same manner as in Example 43 except that the intrinsic viscosity [77] of the modified polyester component was changed as shown in Table 4.
- Table 4 shows the measurement results.
- Thread breakage is 0 to 1 times during 10 hours continuous composite false twisting, and the yarn forming property is good.
- Thread breakage is 5 times or more during 10 hours of continuous composite false twisting, and the spinning performance is extremely poor.
- a 50 cm composite false twisted yarn was loaded with a load of 0.176 cN / dtex (0.2 g / de), suspended vertically, and accurately marked at 5 cm intervals. The load was removed and the marking part was cut accurately to make 10 samples. Take 10 fibers from the sheath (filament) and 10 fibers from the core (filament), and apply a load of 0.03cN / dtex (1 / 30g / de) to each single yarn. , Hang vertically and measure the length of each. The above-mentioned measurement was performed on 10 samples, and the average value of each was taken as L3 ⁇ 4 (sheath yarn length) and Lb (core yarn length), and the yarn length difference was calculated by the following formula.
- Thread length difference (La-Lb) / Lax 100%
- a composite false twisted yarn was knitted in a cylinder, boiled with a cationic dye, set in a dry heat at 160 minutes after washing with water, and used as a measurement sample. Water is dripped onto this tubular knitting, and the situation of the water dripping part and its surroundings is investigated with a side photograph (magnification 200) of the tubular knitting. Judgment was made with the naked eye.
- the composite false twisted yarn was knitted in a cylinder, boiled with a cationic dye, washed with water, set in a dry heat at 160 ° C for 1 minute, used as a measurement sample, and evaluated by its touch.
- a false twisted yarn was obtained in the same manner as in Example 59 except that the spinning speed and false twisting magnification were changed as shown in Table 5. Table 5 shows the measurement results.
- a false twisted yarn was obtained in the same manner as in Example 59 except that the copolymerization amount of 5-sodium sulfoisophthalic acid in the modified polyethylene terephthalate was changed as shown in Table 5. Table 5 shows the measurement results.
- a false twisted yarn was obtained in the same manner as in Example 59 except that the intrinsic viscosity [/?] Of the modified polyethylene terephthalate was changed as shown in Table 5. Table 5 shows the measurement results.
- the yarn breakage is 5 times or more during 10 hours of continuous false twisting, and the yarn forming property is extremely poor.
- a false twisted yarn was knitted in a cylinder, boiled with a cationic dye, washed with water, set in a dry heat at 160 ° C for 1 minute, and used as a measurement sample. Water is dripped onto this cylinder, and the situation of the water dripping part and its surroundings is investigated with a side photograph (magnification 200) of the cylinder, and the swelling and shrinkage of the stitch and the sense of sheer was judged.
- the false twisted yarns of Examples 59 to 74 had good anti-permeability even when wet with water, and had a good texture. Industrial applicability.
- the composite fiber-containing yarn of the present invention expresses crimp by heating, and the crimped composite fiber obtained thereby increases its crimp rate by moisture absorption or water absorption. However, it has the property of recovering to one day during the crimping due to drying. Manufactured from yarns (including false twisted ones) containing such composite fibers. Fabrics such as knitted fabrics, when wet, increase the crimp rate of the composite fibers contained in them. Thus, the voids in the fabric are reduced. This fabric has good anti-permeability, windproof and heat retention properties, and this performance is maintained even after the fabric has undergone processing such as dyeing finish. Therefore, the composite fiber-containing yarn of the present invention is useful as a raw material for various textile products, particularly textile products for clothing.
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Abstract
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Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
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KR1020087021442A KR101355669B1 (ko) | 2006-03-01 | 2007-02-28 | 복합 섬유 함유 사조 |
CA2640570A CA2640570C (en) | 2006-03-01 | 2007-02-28 | Conjugate fiber-containing yarn |
EP07715257A EP1995358B1 (en) | 2006-03-01 | 2007-02-28 | Cojugated fiber containing yarn |
CN2007800073640A CN101395307B (zh) | 2006-03-01 | 2007-02-28 | 含复合纤维的纱线 |
DE602007009059T DE602007009059D1 (de) | 2006-03-01 | 2007-02-28 | Garn aus konjugatfaser |
US12/278,373 US8153253B2 (en) | 2006-03-01 | 2007-02-28 | Conjugate fiber-containing yarn |
AT07715257T ATE480652T1 (de) | 2006-03-01 | 2007-02-28 | Garn aus konjugatfaser |
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JP2006054684A JP4866103B2 (ja) | 2006-03-01 | 2006-03-01 | 複合繊維 |
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JP2006-056425 | 2006-03-02 | ||
JP2006056425A JP2007231474A (ja) | 2006-03-02 | 2006-03-02 | 太細複合繊維 |
JP2006-063176 | 2006-03-08 | ||
JP2006063176A JP4866110B2 (ja) | 2006-03-08 | 2006-03-08 | 混繊糸 |
JP2006-063174 | 2006-03-08 | ||
JP2006063175A JP4866109B2 (ja) | 2006-03-08 | 2006-03-08 | 仮撚加工糸 |
JP2006-063175 | 2006-03-08 | ||
JP2006063174A JP2007239139A (ja) | 2006-03-08 | 2006-03-08 | 複合仮撚加工糸 |
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US (1) | US8153253B2 (ja) |
EP (1) | EP1995358B1 (ja) |
KR (1) | KR101355669B1 (ja) |
AT (1) | ATE480652T1 (ja) |
CA (1) | CA2640570C (ja) |
DE (1) | DE602007009059D1 (ja) |
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WO2013085871A3 (en) * | 2011-12-05 | 2014-09-04 | Telecommunication Systems, Inc. | Wireless emergency caller profile data delivery over a legacy interface |
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ES2365522T3 (es) * | 2004-09-03 | 2011-10-06 | Teijin Fibers Limited | Fibra de material compuesto. |
TWI499699B (zh) * | 2012-05-22 | 2015-09-11 | Antistatic processing wire and manufacturing method thereof | |
KR101422399B1 (ko) * | 2013-03-20 | 2014-07-22 | 로디아 오퍼레이션스 | 폴리아미드 및 폴리에스테르 얼로이수지 조성물을 포함하는 태세사 및 이의 제조 방법 |
KR101952614B1 (ko) * | 2017-06-26 | 2019-02-27 | 조대현 | 다기능성 복합섬유 혼섬사의 제조방법 및 이로 제조된 다기능성 복합섬유 혼섬사 |
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Also Published As
Publication number | Publication date |
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TWI413715B (zh) | 2013-11-01 |
KR101355669B1 (ko) | 2014-01-27 |
EP1995358A1 (en) | 2008-11-26 |
DE602007009059D1 (de) | 2010-10-21 |
KR20080096810A (ko) | 2008-11-03 |
CA2640570C (en) | 2014-02-04 |
ATE480652T1 (de) | 2010-09-15 |
CA2640570A1 (en) | 2007-09-13 |
EP1995358B1 (en) | 2010-09-08 |
US20090029164A1 (en) | 2009-01-29 |
TW200804640A (en) | 2008-01-16 |
EP1995358A4 (en) | 2009-07-01 |
US8153253B2 (en) | 2012-04-10 |
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