WO2012014309A1 - 耐摩耗性ポリエステル繊維及び織編物 - Google Patents
耐摩耗性ポリエステル繊維及び織編物 Download PDFInfo
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- WO2012014309A1 WO2012014309A1 PCT/JP2010/062839 JP2010062839W WO2012014309A1 WO 2012014309 A1 WO2012014309 A1 WO 2012014309A1 JP 2010062839 W JP2010062839 W JP 2010062839W WO 2012014309 A1 WO2012014309 A1 WO 2012014309A1
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- dtex
- polyester fiber
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- resistant
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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
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
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- 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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
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- 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
- D01D5/08—Melt spinning methods
- D01D5/098—Melt spinning methods with simultaneous stretching
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- 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
- D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
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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
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
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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
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
- D02G1/0213—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting after drawing the yarn on the same machine
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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
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/442—Cut or abrasion resistant yarns or threads
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
- D02J1/229—Relaxing
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
- D03D1/0035—Protective fabrics
- D03D1/0041—Cut or abrasion resistant
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/007—Hardness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
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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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- 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
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive 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
- D10B2501/00—Wearing apparel
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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
- D10B2501/00—Wearing apparel
- D10B2501/04—Outerwear; Protective garments
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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
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3976—Including strand which is stated to have specific attributes [e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous composition, water solubility, heat shrinkability, etc.]
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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
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/40—Knit fabric [i.e., knit strand or strip material]
Definitions
- the present invention relates to a polyester fiber having good wear resistance and a woven or knitted fabric containing the fiber.
- Polyester fibers typified by polyethylene terephthalate (hereinafter referred to as PET) are used in a wide range of applications regardless of clothing and materials because they are excellent in mechanical properties and handleability. Many developments of fibers and products that satisfy the required properties have been studied.
- PET polyethylene terephthalate
- wear resistance is one of the important required properties, and woven and knitted fabrics with excellent wear resistance are required.
- polyester fibers are mainly woven or knitted, and used for clothing, especially windbreakers, down jackets, etc., fuzzing or tearing may occur due to rubbing caused by wearing on the side or thigh.
- intense friction with other objects occurs (for example, friction with a zack or rope, or ground or cliff, (Rubbing with plants, etc.) Fluffing may occur or tear.
- polyester fibers are mainly knitted and used for apparel, especially sportswear such as game shirts and pants, intense friction between apparel and other objects occurs (for example, between athletes and competition equipment). Contact with the ground due to sliding, etc.), and fluffing or tearing may occur.
- polyester fibers are known to be slightly inferior to polyamide fibers such as nylon 66, but polyamide fibers are prone to light deterioration and yellowing and are not suitable for severe outdoor use. It is. Therefore, various investigations for improving the wear resistance of polyester fibers are underway.
- Patent Document 1 discloses a method of obtaining a high-strength polyester fiber by devising a stretching method when producing a polyester fiber. Yarns obtained by these production methods have high strength in the fiber axis direction, but are weak against external forces from other directions such as the direction perpendicular to the fiber axis, and wear occurs from all directions such as wear of clothing materials. Sufficient wear resistance cannot be obtained.
- Patent Document 2 proposes a crimped yarn excellent in wear resistance for clothing having a flat cross section with increased intrinsic viscosity and strength. Although this crimped yarn is considered for clothing, it has a structure with increased strength and orientation, is still brittle in directions other than the fiber axis, and is not sufficiently durable against wear from all directions.
- Patent Document 3 proposes a fiber containing special silicon oxide particles and having a specific crystal structure and enhanced orientation.
- the inclusion of particles generally decreases the strength of the yarn.
- the structure with enhanced orientation it is also brittle in directions other than the fiber axis, and the wearability in all directions such as Martindale wear is not sufficient.
- Patent Document 4 in order to suppress the occurrence of single yarn breakage and fluff due to friction between the interlace yarn used for the woven warp and the loom metal part, the polyester unstretched yarn is stretched to 0
- a method has been proposed for improving wear by applying 2-5% relaxation heat treatment and fluid entanglement treatment.
- this method can suppress the occurrence of single yarn breakage and fluff due to friction with yarns and loom parts during textile production to some extent, but clothing, especially outerwear such as windbreakers and down jackets, game shirts and pants, etc. It has been difficult to prevent tears caused by intense friction between clothing and other objects in sportswear and outdoor wear (outdoor activity wear such as climbing and camping).
- the problem to be solved by the present invention is to improve the wear resistance of woven or knitted fabrics using garments, especially polyester fibers with fineness, in order to improve the wear resistance of Young, having a specific elongation range in the strength, elongation and stress-strain curves. It is to provide an abrasion-resistant polyester fiber in which the physical properties of the polyester fiber, such as the rate, are defined within a specific range.
- the problem to be solved by the present invention is that fuzzing and tearing caused by rubbing of the side portions and thigh portions that occur when used as outer clothing such as clothing, especially windbreakers and down jackets are less likely to occur. It is also to provide a woven or knitted fabric made of the polyester fiber, which is less likely to fluff or break even against various frictions between clothes and other objects that occur when used as a fabric, and has an excellent texture.
- the polyester fiber is subjected to a relaxation heat treatment in a specific range after the stretching treatment, whereby the physical properties of the polyester fiber, particularly strength, elongation, It was found that the differential Young's modulus in the stress-strain curve can be defined within a specific range, and polyester fibers with improved wear resistance can be obtained.
- the inventors of the present invention have reported that woven fabrics or knitted fabrics (hereinafter collectively referred to as “woven / knitted fabrics”) containing polyester fibers with improved wear resistance are torn especially by intense contact with other objects. It was found to be effective for prevention.
- polyester fibers that have good wear resistance and are particularly suitable for thin plain woven fabrics, and woven fabrics containing the fibers.
- Woven and knitted fabrics using such fibers are resistant to fluffing and tearing caused by rubbing of the sides and thighs, especially when wearing outerwear such as windbreakers and down jackets. Resistant to intense contact friction with each other and with other objects, it becomes clothing with an excellent texture. Moreover, the lightweight thinning of the clothing which requires these abrasion resistances can be achieved.
- the polyester fiber of the present invention is used for knitting, it is difficult to cause fuzz and tear due to rubbing of the side and thighs that occurs when wearing sportswear such as game shirts, game pants, and jerseys, and during games and training
- the lightweight thinning of the clothing which requires these abrasion resistances can be achieved.
- the term “wear resistance” means the ability of the fiber surface to resist a frictional force (shearing force) when rubbed against another object surface.
- the fibers are rubbed to cause a phenomenon (fibrillation) in which fibrils in a single yarn appear as fluff on the surface of the single yarn.
- fibrillation occurs, for example, the design and durability of the fabric surface are lowered, so that fibrillation is an undesirable phenomenon. Therefore, in order to improve the wear resistance, the point is how to prevent fibrillation.
- Polyester fibers stretched under normal conditions have a high degree of crystallinity and a high molecular orientation in the fiber length direction.
- a specific range of relaxation heat treatment is performed.
- orientation relaxation To disturb the orientation of the polyester molecules in the fiber, thereby reducing the degree of orientation (hereinafter also referred to as orientation relaxation), and the physical properties of the polyester fiber, in particular, strength, elongation, and stress-strain curve ( The differential Young's modulus in the SS curve is in a specific range.
- FIG. 1 shows a typical stress-strain curve (SS curve) of the polyester fiber of the present invention.
- the polyester fiber of the present invention has a characteristic curve that has a flat portion in a low elongation region and then a high Young's modulus.
- FIG. 2 shows a differential Young's modulus-strain curve, which is a graph obtained by differentiating FIG. 1 with respect to elongation.
- the polyester fiber of the present invention has a minimum value in the range of elongation of 2 to 5% and a maximum value in the range of elongation of 10 to 15%.
- the minimum value of the differential Young's modulus of the yarn obtained in the present invention of 2% or more and 5% or less is 20 cN / dtex or less as shown in FIG. 2, and the elongation is 10 to 15%.
- the maximum value in the range is 23 cN / dtex or more.
- the polyester fiber of the present invention having such differential Young's modulus behavior due to orientation relaxation has a large amount of energy due to frictional force (shearing force) when the frictional force (shearing force) is applied to the fiber surface. Since it is consumed, it is considered that fibrillation hardly occurs.
- the polyester used in the polyester fiber of the present invention contains ethylene terephthalate as a main repeating unit, and contains 95% by mole or more, preferably 97% by mole or more, more preferably 99% by mole or more, and ethylene terephthalate as a repeating unit.
- Ethylene terephthalate may be a repeating unit at 100 mol%, or less than 5 mol% may be composed of repeating units of other esters. That is, the polymer used for the polyester fiber of the present invention may be a PET single structure or a copolymerized PET in which less than 5 mol% is a repeating unit of other ester.
- Acidic components include aromatic dicarboxylic acids typified by isophthalic acid and 5-sodium sulfoisophthalic acid, and aliphatic dicarboxylic acids typified by adipic acid and itaconic acid.
- glycol component examples include ethylene glycol, butylene glycol, and polyethylene glycol.
- hydroxycarboxylic acids such as hydroxybenzoic acid, are also mentioned. A plurality of these may be copolymerized.
- the polyester fiber of the present invention includes a matting agent such as titanium oxide, a heat stabilizer, an antioxidant, an antistatic agent, an ultraviolet absorber, an antibacterial agent, and various pigments within a range not hindering the effects of the present invention.
- a matting agent such as titanium oxide, a heat stabilizer, an antioxidant, an antistatic agent, an ultraviolet absorber, an antibacterial agent, and various pigments within a range not hindering the effects of the present invention.
- Such additives may be contained, or these components may be contained by copolymerization.
- the fineness of the polyester fiber of the present invention is 8 dtex or more and 200 dtex or less, and when used for a woven fabric, it is preferably 8 dtex or more and 100 dtex or less. A more preferable range is 10 dtex or more and 84 dtex or less. If it is less than 8 dtex, the fineness is too thin, and the handling of fibers in the weaving and knitting process tends to be difficult. If it exceeds 100 dtex, the thickness of the thin fabric for clothing becomes thick and the texture is not good. In particular, the effect of the present invention is effective for fine fineness, and particularly exhibits excellent wear resistance even in a fine count of 10 to 30 dtex. Therefore, excellent wear resistance is exhibited in lightweight, thin fabrics using these fine fine yarns, particularly in fabrics having a basis weight of 40 g / m 2 or less.
- the fineness of the polyester fiber of the present invention is preferably 20 dtex to 200 dtex when used for a knitted fabric.
- a more preferable range is 30 dtex to 175 dtex. If it is less than 20 dtex, the fineness is too fine, and yarn breakage is likely to occur during knitting, resulting in poor wear resistance. On the other hand, if it exceeds 200 dtex, the yarn becomes hard and the texture of the knitted fabric is not good.
- the abrasion resistance effect exhibited by the polyester fiber of the present invention is effective even for fine fineness, and excellent abrasion resistance is exhibited even in a fine count of 30 to 84 dtex.
- the single yarn fineness of the polyester fiber of the present invention is 1.0 dtex or more and 4.0 dtex or less, preferably 1.0 dtex or more and 3.1 dtex or less.
- the single yarn fineness is less than 1.0 dtex, the wear resistance is not good.
- the single yarn fineness exceeds 4 dtex, the wear resistance is good, but the fibers become hard, so the texture of the knitted fabric is good. In addition, skin irritation is likely to occur.
- the breaking strength of the polyester fiber of the present invention is 3.5 cN / dtex or more, preferably 4.0 cN / dtex or more, more preferably 4.5 cN / dtex or more.
- the breaking strength is less than 3.5 cN / dtex, the wear resistance is not good. The higher the breaking strength is, the better the characteristic value is for improving the wear resistance. However, if the breaking strength is 6.0 cN / dtex or more, the fiber becomes hard, which is not preferable in terms of wear resistance.
- the breaking elongation is 20% or more and 50% or less, preferably 30% or more and 45% or less. If the elongation at break is less than 20%, the degree of orientation of the polyester molecules in the fiber increases, so that fibrillation is likely to occur, and good wear resistance cannot be obtained, while the elongation at break exceeds 50%. In addition, since it is difficult to set the breaking strength to 3.5 cN / dtex or more, the object of the present invention cannot be achieved.
- the minimum differential Young's modulus in the region where the elongation is 2% or more and 5% or less in the stress-strain curve of the fiber is 20 cN / dtex or less, preferably 2 to 15 cN / dtex, more preferably 4 to 10 cN. / Dtex. If it exceeds 20 cN / dtex, the relaxation of the orientation of the polyester molecules in the fiber by relaxation heat treatment is not sufficient, and fibrillation occurs due to frictional force (shearing force), so that the wear resistance is not good.
- the polyester fiber of the present invention preferably has a yarn wear strength by a yarn wear test of 0.5 times / dtex or more. More preferably, the yarn wear strength is 0.6 to 2.0 times / dtex.
- the yarn wear strength can be evaluated using a yarn wear tester shown in FIG. The yarn is cut out by 20 cm, and several yarns are arranged so that the total fineness becomes about 167 dtex, and a twist of about 10 times / m is put. A weight of 0.14 g / dtex is applied to a metal rod having a diameter of 1 cm, to which # 800 abrasive paper is attached, and the yarn is brought into contact therewith.
- Yarn wear strength Yarn wear frequency / Total fineness of yarn used in the test (3) Is calculated by
- polyester fiber of the present invention When used for a woven or knitted fabric, it may be left untwisted or may be entangled or twisted for the purpose of improving convergence.
- the intrinsic viscosity of the polyester fiber used in the present invention is preferably in the range of 0.70 dl / g to 1.30 dl / g, more preferably in the range of 0.75 dl / g to 1.10 dl / g. If the intrinsic viscosity is 0.70 dl / g or more, the abrasion resistance of the resulting fiber can be improved. In addition, when the intrinsic viscosity exceeds 1.30 dl / g, although the wear resistance is improved, the texture is hard and it is not preferable as a fiber used in a woven or knitted fabric for clothing.
- the undrawn yarn is stretched at 65% or more and 85% or less, preferably 70% or more and 80% or less of the limit draw ratio, and then subjected to relaxation heat treatment.
- the present invention is characterized in that relaxation heat treatment is performed in any of the fiber and woven / knitted fabric manufacturing processes, such as spinning, after spinning, and processing of knitted fabrics.
- the relaxation heat treatment can increase the crystallinity and suppress the degree of orientation.
- the heat treatment temperature is preferably in the temperature range of 120 ° C. or higher and 220 ° C. or lower, more preferably 150 ° C. or higher and 200 ° C. or lower. .
- the orientation effect of the polyester itself is low, so even when combined with relaxation heat treatment, the orientation relaxation effect of the polyester molecules in the fiber is not sufficient, and good wear resistance cannot be obtained, On the other hand, if it exceeds 220 ° C., it becomes close to the melting point of the polyester, so that fuzz and yarn breakage are likely to occur due to heat treatment.
- the relaxation rate during the relaxation heat treatment in the yarn state is preferably 5% or more and 15% or less, more preferably 7% or more and 12% or less.
- the relaxation rate can be obtained by the ratio of the yarn speed before and after the heat treatment (usually expressed by the roll speed) even in the case of the relaxation heat treatment using an apparatus other than the apparatuses shown in FIGS.
- the relaxation rate When the relaxation rate is less than 5%, the orientation relaxation effect of the polyester molecules in the fiber is not sufficient, and good wear resistance cannot be obtained. On the other hand, when the relaxation rate exceeds 15%, the relaxation heat treatment is not performed. The process tension is lowered and the spinnability is not good. Thus, after the stretching, by performing a relaxation heat treatment for the purpose of relaxing the thermal shrinkage and orientation of the polyester molecules in the fiber, the minimum differential Young's modulus in the region of elongation of 2% or more and 5% or less is 20 cN / dtex or less. Thus, a fiber having improved wear resistance can be obtained.
- the relaxation heat treatment may be carried out by the apparatus shown in FIG. 8 once drawn and wound by the spinning device shown in FIG. 7, or as shown in FIG. May be. Although the yarn tension decreases during the relaxation heat treatment, from the viewpoint of performing a stable relaxation heat treatment with a low tension, the yarn is stretched and wound up, and then the yarn travels from top to bottom according to gravity as shown in FIG. It is prefer
- the knitted or knitted fabric processing process is usually an intermediate set after refining, and then a final set is performed through a dyeing process. It is particularly effective to relax by setting a width or driving at a relatively high temperature of 170 ° C. to 210 ° C. during setting.
- Width insertion is a process for reducing the dimension in the width direction of the woven or knitted fabric
- driving-in is a process for reducing the dimension in the warp / knitted direction.
- the integrated value of the rate of reduction in size due to width insertion and driving in is preferably 2 to 15%, more preferably 5 to 12% with respect to the size before processing.
- the polyester fiber in the knitted or knitted fabric can be subjected to the same treatment as the relaxation treatment corresponding to a relaxation rate of 5 to 15% in the yarn state.
- the heat treatment temperature is desirably 15 seconds to 120 seconds, and particularly desirably 30 seconds to 100 seconds.
- the polyester fiber of the present invention preferably has a crystallinity of 60% to 90% and an orientation of 0.70 to 0.92.
- the degree of orientation referred to in the present invention refers to the measurement of the transmission fiber wide-angle X-ray, and the peak intensity and the back with respect to the azimuth dependence I ( ⁇ ) of the diffraction intensity derived from the (100) plane of the polyester.
- the degree of crystallinity is less than 60%, the crystallization is not sufficiently advanced and the wear strength is lowered. On the other hand, if it exceeds 90%, the texture becomes hard, which is not preferable. If the degree of orientation is 0.70 or more, excellent wear resistance can be expressed, but if the degree of orientation exceeds 0.92, the orientation is strong, so that it is strong in the fiber axis direction and effective for increasing the strength of the fiber. However, the directions other than the fiber axis are weakened, which is not preferable in terms of wear resistance in the present invention.
- the abrasion resistance in the present invention is excellent in resistance to friction from all directions that occurs when clothing is worn, and therefore, abrasion resistance in all directions is required.
- the particularly preferable ranges of the crystallinity and the orientation differ depending on the presence or absence of false twisting.
- the degree of crystallinity of the polyester fiber that is not false twisted is particularly preferably 65 to 80%, and the degree of orientation is particularly preferably 0.70 to 0.88.
- the crystallinity of the false twisted polyester fiber is particularly preferably 60 to 90%, and the degree of orientation is particularly preferably 0.85 to 0.92.
- the polyester fiber subjected to relaxation heat treatment is false twisted, it is preferable to false twist at a low temperature of 180 to 200 ° C. and relax heat treatment at a temperature equal to or higher than the false twist temperature.
- the false twist is preferably performed at a low temperature of 180 ° C. to 200 ° C.
- heat is usually applied at 200 ° C. to 210 ° C., and the yarn is processed in a tension state. In this case, since the set temperature in post-processing is usually lower than the false twisting temperature, the relaxation effect at the time of setting is hardly exhibited.
- the false twisting may be performed in any of the steps of 1 heater (1H) and 2 heaters (2H), and may be subjected to interlacing before or after false twisting. In the case of 2H false twisting, the higher heater temperature should satisfy the above conditions.
- the temperature and relaxation rate of false twisting and relaxation heat treatment are controlled to use false twisted yarn. Even in the case of this woven or knitted fabric, the crystallinity can be set to 60 to 90% and the orientation can be set to 0.85 to 0.92.
- the single yarn cross-sectional shape of the polyester fiber of the present invention may be an irregular cross-section such as a circle, Y or W shape, a hollow cross-section, etc., and is not particularly limited.
- the polyester fiber of the present invention may be used alone or in combination with other fibers. Examples of other composite fibers include, but are not limited to, other polyester fibers, nylon, acrylic, cupra, rayon, polyurethane elastic fibers, and the like. It may be a woven or knitted fabric made only of the polyester fiber of the present invention, but if it is a woven fabric, it is sufficient that at least one of the processes contains the polyester fiber of the present invention, and 30% or more of the yarns constituting the process are included.
- the polyester fiber of the present invention is preferred.
- the fibers arranged on one surface preferably 50% or more, particularly preferably 90% or more, may be the polyester fiber of the present invention.
- the woven or knitted fabric of the present invention can be refined, dyed and finished by conventional methods, and the type of finishing agent is appropriately selected depending on the use of the polyester fiber to be used.
- calendering is very preferable because it has an effect of increasing the crystallinity.
- the woven or knitted fabric of the present invention has the functions imparted by the above-mentioned various processing, Excellent durability even after repeated washing.
- the woven fabric of the present invention is subjected to water repellent finish, it has an effect of excellent durability of the water repellent effect.
- the polyester fiber of the present invention when used as a woven fabric, a plain woven structure, a twill woven structure, a satin woven structure, and various changed structures derived from them can be applied.
- the ripstop taffeta structure is preferable because the wear resistance is particularly excellent due to the wear durability effect by the lip portion.
- a knitting structure such as a four-step smooth which is likely to cause snagging has an effect of improving snag and can be used preferably.
- the woven fabric of the present invention preferably has a weight reduction rate of 30,000 times of 5% or less by the Martindale abrasion test. More preferably, the weight reduction rate is 30,000 times and 3% or less, and more preferably the weight reduction rate is 30,000 times and 1% or less. Examining the wear situation during actual wear of garments for clothing, it is very close to the damage state at the time of wear evaluation by the Martindale method, and in order to improve the wear resistance at the time of wear, it is necessary to increase the strength by Martindale wear It is valid.
- the knitted fabric of the present invention preferably has N (NONE) or L (LOW) wear by the ART wear test. The wear situation in the actual wearing of the knitted fabric for clothing can be evaluated by an ART wear test, and it is effective to improve the wear resistance in the ART wear test in order to increase the wear resistance during wearing.
- the woven or knitted fabric of the present invention is excellent in texture and abrasion resistance and can be applied to various clothing fields.
- it is suitable for outer clothing such as windbreakers, down jackets, sportswear, outdoor wear and the like, which often rub against each other when worn.
- it is suitable for sportswear and outdoor wear that is worn in harsh environments and often rubs against others.
- the woven or knitted fabric of the present invention has a feature of being excellent in wear resistance while being thin and lightweight, it can be particularly suitably used for the above-mentioned clothing that has been reduced in weight and weight.
- the fabric of the present invention preferably has a basis weight of 20 to 80 g / m 2 . If the fabric weight is within this range, it is possible to obtain a woven fabric having excellent abrasion resistance while maintaining the woven fabric performance required for apparel.
- a woven fabric using polyester fibers having a fineness of 10 to 33 dtex has excellent wear resistance.
- lightweight and thin fabrics using these yarns such as fabrics with a weight per unit area of 44 g / m 2 or less, have excellent wear resistance, so that both thinning and weight reduction and improved wear resistance can be achieved. Can do.
- the knitted fabric of the present invention preferably has a basis weight of 80 to 350 g / m 2 .
- a knitted fabric having excellent wear resistance When the basis weight is within this range, it is possible to obtain a knitted fabric having excellent wear resistance while maintaining the knitted fabric performance required for clothing use.
- a knitted fabric using a polyester fiber having a fineness of 30 to 84 dtex has excellent wear resistance.
- lightweight and thin knitted fabrics using these yarns such as knitted fabrics with a basis weight of 120 g / m 2 or less, have excellent wear resistance, so that both thinning and weight reduction and improved wear resistance are compatible. Can do.
- Fineness, breaking strength, breaking elongation Measurement was performed under the following conditions based on JIS-L-1013 (chemical fiber filament yarn testing method). The single yarn fineness was calculated by dividing the fineness of the yarn by the number of filaments. Test piece length: 200 mm Tensile speed: 200 mm / min Number of measurements: 5 times / sample
- Intrinsic viscosity A sample polymer is dissolved in orthochlorophenol (hereinafter abbreviated as OCP), and a relative viscosity ⁇ r at a plurality of points is obtained using an Ostwald viscometer at a temperature of 25 ° C. I asked for it.
- OCP orthochlorophenol
- Yarn wear strength Yarn wear frequency / Total fineness of yarn used in the test (3) Is calculated by
- ART wear resistance The knitted fabric was subjected to a wear test based on JIS L1076 (ART method). The number of wear was 60, and evaluation was performed using N (NONE), L (LOW), M (MEDIAUM), and H (HIGH).
- Examples 1 to 4, Comparative Examples 1 and 2 In this example, the effect of the single yarn fineness on the spinnability, wear resistance, and feel performance will be described.
- the manufacturing conditions of Example 2 are shown.
- the manufacturing conditions used are as shown below.
- Winding condition First roll: speed: 1500 m / min, temperature: 90 ° C Second roll: speed; 3975 m / min, temperature; 130 ° C. Winder: SA-608 (Asahi Engineering Co., Ltd.) Twill Angle: 5.8 degrees
- Examples 5 and 6, Comparative Examples 3 and 4 In this example, the effect of intrinsic viscosity will be described. In performing the same spinning / drawing / relaxation heat treatment as in Example 2, spinning and winding were performed while changing the intrinsic viscosity of the polymer used, and fibers of Examples 5 and 6 and Comparative Examples 3 and 4 were obtained. Table 1 shows the physical properties and evaluation results of the fibers obtained in each Example and Comparative Example. As is apparent from Table 1, the fibers obtained in the examples of the present invention showed good results in spinnability, yarn wear, and texture. Since the intrinsic viscosity of Comparative Example 3 is lower than the range defined by the present invention, the effect expected by the present invention was not obtained in terms of yarn wear. In Comparative Example 4, since the intrinsic viscosity was high with respect to the range defined by the present invention, the texture deteriorated and the effect expected by the present invention was not obtained.
- Examples 7 and 8, Comparative Example 5 In this example, the effect of the draw ratio will be described.
- the ratio of the draw ratio to the limit draw ratio and the relaxation rate were varied to obtain the fibers of Examples 7 and 8 and Comparative Example 5.
- Table 1 The physical properties and evaluation results of the fibers obtained in each example and comparative example are shown in Table 1 below. As can be seen from Table 1, the fibers obtained in the examples of the present invention showed good results in spinnability, yarn wear, and texture.
- Comparative Example 5 the limit draw ratio was high with respect to the range defined by the present invention, so that the spinnability deteriorated and fibers could not be obtained.
- Example 9 and 10 Comparative Examples 6 and 7
- the effect of the heat treatment temperature will be described.
- the fibers of Examples 9 and 10 and Comparative Examples 6 and 7 were obtained by varying the heat treatment temperature.
- the physical properties and evaluation results of the fibers obtained in each example and comparative example are shown in Table 1 below.
- Table 1 the fibers obtained in the examples of the present invention showed good results in spinnability, yarn wear, and texture.
- the value of the minimum differential Young's modulus in the region of 2% or more and 5% or less is 20 cN / dtex or more.
- Example 11 to 13 Comparative Examples 8 to 10
- the influence of the relaxation rate during relaxation heat treatment will be described.
- the fibers having different relaxation rates shown in Examples 11 and 12 and Comparative Examples 8 to 10 were obtained by changing the speed of the roll involved in the relaxation heat treatment. It was.
- Comparative Example 9 is a fiber that has been wound under the same spinning and stretching conditions as in Example 2 and then has not been subjected to relaxation heat treatment.
- Table 1 The physical properties and evaluation results of the fibers obtained in each example and comparative example are shown in Table 1 below. As is apparent from Table 1, the fibers obtained in the examples of the present invention showed good results in spinnability, yarn wear, and texture.
- Comparative Examples 8 and 9 the relaxation rate is small with respect to the range defined by the present invention.
- Comparative Example 8 it is -5%, that is, subjected to stretching heat treatment, and Comparative Example 9 is not subjected to relaxation heat treatment.
- the minimum differential Young's modulus is 20 cN / dtex or more, and the yarn wear property is not improved.
- Comparative Example 10 the relaxation rate was large with respect to the range defined by the present invention, and the process tension during the relaxation heat treatment was lowered, so that the spinnability deteriorated and the fiber of the present invention could not be obtained. .
- Example 13 using a spinning machine and a winder as shown in FIG. 9, after stretching between the first roll and the second roll, between the second roll and the third roll without winding once.
- the fiber of 56 dtex / 24 filament of this invention was manufactured by carrying out relaxation heat processing.
- the conditions were set in the same manner as in Example 2 from the drying of the pellets to the second roll, and the conditions after the third roll were newly set. The newly set conditions are as shown below.
- Winding condition First roll: speed: 1500 m / min, temperature: 90 ° C Second roll: speed; 3975 m / min, temperature; 130 ° C. Third roll: speed: 3617 m / min, temperature: 180 ° C. Winder: SA-608 (Asahi Engineering Co., Ltd.) Twill Angle: 5.8 degrees
- Example 14 In accordance with the production conditions of Example 2, without carrying out a relaxation heat treatment, a polyester filament of 34 dtex 12 filaments with a limiting viscosity of 0.86 and a round cross section was spun, and the obtained polyester filaments were used for warp and weft.
- a woven fabric having a ripstop structure with a background of 2 mm was woven using a water jet loom. After scouring, the obtained woven fabric was preset at 190 ° C. for 60 seconds, with a width filling rate of 3% and a driving rate of 5%, dyed with a liquid dyeing machine and dried, then at 170 ° C. for 20 seconds. The wrinkles were extended to the extent that they were stretched, final setting was performed, and calendering was further performed at 160 ° C. As shown in Table 2 below, the properties of the obtained fabric were excellent in abrasion resistance and good in texture.
- Example 15 Example 14 except that warp and weft yarns were manufactured in accordance with the production conditions of Example 2 and were not subjected to relaxation heat treatment, and the intrinsic viscosity was 1.20 and 11 decitex 10 filament W-shaped polyester filaments were used. Weaving and processing were performed in the same manner as above. As shown in Table 2, the properties of the resulting fabric were excellent in abrasion resistance and good in texture.
- Example 16 Using the polyester filament of Example 1 for the warp, and using the polyester filament of 56 decitex 24 filaments with an intrinsic viscosity of 0.68 manufactured according to the manufacturing conditions of Example 2 without any relaxation heat treatment, and weft Weaving and processing were performed in the same manner as in Example 14 except that the structure was taffeta. As shown in Table 2, the properties of the resulting fabric were excellent in abrasion resistance and good in texture.
- Example 17 In accordance with the production conditions of Example 2, a polyester filament of 34 dtex 12 filaments having an intrinsic viscosity of 0.85 and a round cross section was spun, wound up, and then hotplate temperature 160 ° C. using the apparatus shown in FIG. The thermal relaxation treatment was performed so that the relaxation rate was 10%. Weaving was carried out in the same manner as in Example 1 except that this yarn was used for warp and weft. After scouring, the resulting woven fabric was preset at 190 ° C. for 60 seconds with a width filling rate and a drive-in rate of 0%, dyed with a liquid dyeing machine, dried, and then subjected to normal final at 170 ° C. for 20 seconds. After setting, calendering was further performed at 160 ° C. As shown in Table 2, the properties of the resulting fabric were excellent in abrasion resistance and good in texture.
- Example 18 Weaving and processing were performed in the same manner as in Example 17 except that the presetting was performed at 190 ° C. for 60 seconds at a width filling rate of 3% and a drive-in rate of 7%. As shown in Table 2 below, the physical properties of the obtained fabric were excellent in abrasion resistance and good in texture.
- Example 19 In accordance with the production conditions of Example 2, a woven fabric similar to that of Example 14 was woven and processed except that a polyester fiber having an intrinsic viscosity of 0.62 produced without performing a relaxation heat treatment was used. As shown in Table 2 below, the properties of the obtained fabric were excellent in abrasion resistance and good in texture.
- Example 11 In accordance with the manufacturing conditions of Example 2, a woven fabric similar to that of Example 14 was woven and processed, except that a polyester filament of 7 decitex 5 filaments with an intrinsic viscosity of 0.71 manufactured without relaxation heat treatment was used. Went. The properties of the resulting fabric were inferior in abrasion resistance as shown in Table 2 below.
- Example 20 A polyester filament having a round cross section of 166 dtex 48 filaments having an intrinsic viscosity [ ⁇ ] of 0.75 manufactured according to the manufacturing conditions of Example 2 and not subjected to relaxation heat treatment was obtained using a 1H false twister. False twisting was performed at a speed of 577 m / min and a draft of 1.75 at 190 ° C. After that, a knitted fabric with a four-step smooth structure was created with a double knitting machine. After scouring, the obtained knitted fabric was preset at 200 ° C. for 30 seconds and a width filling rate of 10%, and then dyed and dried by a liquid dyeing machine using a conventional method. Thereafter, final setting was performed at 170 ° C. for 20 seconds with a width setting to stretch the wrinkles. As shown in Table 3 below, the characteristics of the obtained knitted fabric were excellent in wear resistance and good in texture.
- Example 21 Similar to Example 1, except that a polyester fiber having a round cross section of 34 dtex 12 filaments having an intrinsic viscosity [ ⁇ ] of 0.85, which was produced according to the production conditions of Example 2 and not subjected to relaxation heat treatment, was used. The method of knitting and processing was performed. As shown in Table 3 below, the characteristics of the obtained knitted fabric were excellent in wear resistance and good in texture.
- Example 22 According to the manufacturing conditions of Example 2, the intrinsic viscosity [ ⁇ ] produced without performing the relaxation heat treatment was 0.70, and the polyester filament of 84 dtex 24 filaments was on the front side, and the intrinsic viscosity [ ⁇ ] was 0.56.
- a mesh knitted fabric was created using 84 dtex 72 filament polyester processed yarn (false twist processing at 210 ° C.) on the back side. After scouring, the obtained knitted fabric was pre-set at 200 ° C. for 30 seconds and a width filling rate of 10%, and then dyed and dried by a liquid dyeing machine using a conventional method. Thereafter, final setting was performed at 170 ° C. for 20 seconds with a width setting to stretch the wrinkles. As shown in Table 3 below, the characteristics of the obtained knitted fabric were excellent in wear resistance and good in texture.
- Example 23 Using a 28 GG tricot knitting machine, a polyester W-type cross-section processed yarn 56 dtex / 30f produced at the front according to the production conditions of Example 2 without any relaxation heat treatment and having an intrinsic viscosity [ ⁇ ] of 0.75. In the middle, an intrinsic viscosity [ ⁇ ] of 0.68 and a polyester round cross-section processed yarn 56 dtex / 24f were knitted in a tricot half structure as polyurethane fiber 44 dtex on the back. The same processing as in Example 20 was performed to obtain a knitted fabric with a basis weight of 255 g / m 2 . The characteristics of the obtained knitted fabric measured with the surface constituted by the yarn supplied from the front kite as shown in Table 3 were excellent in abrasion resistance and texture.
- Example 24 A polyester filament of 84 dtex 24 filaments with a limiting viscosity of 0.85 and a round cross section was spun, wound up, and then relaxed to a relaxation rate of 10% at a hot plate temperature of 160 ° C. using the apparatus shown in FIG. Heat treatment was performed. This yarn was false twisted using a 1H false twister at a yarn speed of 577 m / min and a draft of 1.75 at 190 ° C. After that, a knitted fabric with a four-step smooth structure was created with a double knitting machine. After scouring, the obtained knitted fabric was preset at 200 ° C.
- Example 17 A knitted fabric similar to that of Example 22 was knitted and processed except that the presetting of Example 22 was performed at 190 ° C. with a width setting ratio of 20% (width setting ratio: ⁇ 20%). The characteristics of the obtained knitted fabric were inferior in wear resistance as shown in Table 3 below.
- a polyester fiber having good abrasion resistance and particularly suitable for a thin woven fabric, and a woven fabric containing the fiber Fluffing and tearing caused by rubbing of the side and thighs that occur when wearing outerwear such as breakers and down jackets are less likely to occur, especially intense contact with clothing and other objects that occurs when wearing sportswear and outdoor wear It is resistant to friction and has excellent texture. Moreover, the lightweight thinning of the clothing which requires these abrasion resistances can be achieved.
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Abstract
Description
ポリエステル繊維が主に織編物の形状で衣料、特にウインドブレーカー、ダウンジャケットなどの外衣に用いられる場合には、脇部や太腿部に着用による擦れが起こることで毛羽立ちが生じたり、破れたりすることがある。また、特にアウトドアウエア(登山用、キャンプ用などの屋外活動用ウエア)に用いられる場合には、他の物体との激しい摩擦が起こり(例えば、ザックやロープなどとの摩擦、あるいは地面や崖、草木との擦れなど)毛羽立ちが生じたり、破れたりすることがある。
ポリエステル繊維が主に編物の形状で衣料、特にゲームシャツやパンツなどのスポーツウエアに用いられる場合には、衣料同士や、他の物体との激しい摩擦が起こり(例えば、競技者同士や競技用品との接触や、スライディングによる地面との接触など)、毛羽立ちが生じたり、破れたりすることがある。
しかしながら、粒子を含有させると一般的には糸の強度は下がってしまう。また、配向を高めた構造ゆえ、やはり繊維軸以外の方向にはもろく、マーチンデール摩耗のような全方向での摩耗性は十分ではない。
しかしながら、この方法では織物製造時の糸や織機部品との摩擦による単糸切れや毛羽の発生をある程度抑制することはできるが、衣料、特にウインドブレーカー、ダウンジャケットなどの外衣、ゲームシャツやパンツなどのスポーツウエアやアウトドアウエア(登山用、キャンプ用などの屋外活動用ウエア)等における、衣料同士や、他の物体との激しい摩擦による破れを防止することは困難であった。
本発明が解決しようとする課題は、衣料、特にウインドブレーカー、ダウンジャケットなどの外衣として用いた時に生じる脇部や太腿部の擦れに起因する毛羽立ちや破れが起こりにくく、特にスポーツウエア、アウトドアウエアとして用いた時に生じる、衣料同士や、他の物体とのさまざまな摩擦に対しても毛羽立ちや破れが起こりにくく、風合に優れた、該ポリエステル繊維からなる織編物を提供することでもある。
[1]エチレンテレフタレートを95モル%以上繰り返し単位とする耐摩耗性ポリエステル繊維であって、以下の要件(1)~(5):
(1)繊度が8dtex以上200dtex以下である、
(2)単糸繊度が1.0dtex以上4.0dtex以下である、
(3)破断強度が3.5cN/dtex以上である、
(4)破断伸度が20%以上50%以下である、そして
(5)繊維の応力-歪曲線における、伸度2%以上5%以下の領域の最小微分ヤング率が20cN/dtex以下である、
を満たすことを特徴とする前記ポリエステル繊維。
(6)糸摩耗強度が0.5回/dtex以上である、
をさらに満たす、前記[1]に記載のポリエステル繊維。
(7)極限粘度が0.70dl/g以上1.30dl/g以下である、
をさらに満たす、前記[1]に記載のポリエステル繊維。
(8)結晶化度が60%~90%であり、かつ、配向度が0.70~0.92である、
をさらに満たす、前記[1]~[3]のいずれかに記載のポリエステル繊維。
極限粘度が0.70dl/g以上1.30dl/g以下であるポリエステルを溶融紡糸し、
限界延伸倍率の65%以上85%以下の延伸倍率で延伸処理し、そして
熱処理温度120℃以上220℃以下、リラックス率5%以上15%以下で弛緩熱処理する、
を含む、前記[1]~[4]のいずれかに記載の耐摩耗性ポリエステル繊維の製造方法。
本発明において、耐摩耗性とは、繊維表面が、他の物体面で擦られた際の摩擦力(剪断力)に抗する性能を意味する。一般に、繊維は擦られることによって、単糸中のフィブリルが単糸表面に毛羽のように現れる現象(フィブリル化)が引き起こされる。一般的に、フィブリル化が起こると、布帛表面の、例えば意匠性、耐久性などが低下するため、フィブリル化は好ましくない現象である。よって、耐摩耗性を向上させるには、如何にしてフィブリル化を防ぐかがポイントとなる。
図2に、図1を伸度について微分したグラフである微分ヤング率-歪曲線を示す。図2に示すとおり、本発明のポリエステル繊維は、伸度が2~5%の範囲で極小値を有し、伸度が10~15%の範囲で極大値を有する。具体的には、本発明で得られる糸の伸度2%以上5%以下の微分ヤング率の極小値は、図2で示されるように20cN/dtex以下となり、伸度が10~15%の範囲で極大値として23cN/dtex以上となる。
配向緩和によってこのような微分ヤング率挙動を有する本発明のポリエステル繊維は、繊維表面に摩擦力(剪断力)が加わった際に、摩擦力(剪断力)によるエネルギーがポリエステル分子の配向増加に多く消費されるため、フィブリル化が起こりにくくなるものと考えられる。
酸性分としては、イソフタル酸や5-ナトリウムスルホイソフタル酸に代表される芳香族ジカルボン酸、アジピン酸やイタコン酸に代表される脂肪族ジカルボン酸などである。グリコール成分としては、エチレングリコール、ブチレングリコール、ポリエチレングリコールなどである。
また、ヒドロキシ安息香酸などのヒドロキシカルボン酸も挙げられる。これらの複数が共重合されていてもよい。
本発明のポリエステル繊維の単糸繊度は1.0dtex以上4.0dtex以下であり、好ましくは1.0dtex以上3.1dtex以下である。単糸繊度が1.0dtex未満の場合は、耐摩耗性が良好でなく、一方、単糸繊度が4dtexを超えると耐摩耗性は良好となるものの、繊維が硬くなるため、編物の風合いが良好でなく、皮膚刺激も生じやすい。
糸摩耗強度=糸摩耗回数/試験に用いた糸の総繊度 (3)
で算出される。
本発明に用いるポリエステル繊維の極限粘度は0.70dl/g以上1.30dl/g以下の範囲であることが好ましく、より好ましくは0.75dl/g以上1.10dl/g以下の範囲である。極限粘度が0.70dl/g以上であれば、得られる繊維の耐摩耗性を改善できる。また、極限粘度が1.30dl/gを超えると、耐摩耗性は良好となるものの、風合いが硬く、衣料用織編物に用いられる繊維として好ましくない。
このように、延伸後、繊維中のポリエステル分子の熱収縮及び配向を緩和する目的で、弛緩熱処理を行うことにより、伸度2%以上5%以下の領域における最小微分ヤング率が20cN/dtex以下となり、耐摩耗性が向上された繊維を得ることができる。弛緩熱処理は、図7に示す紡糸装置により延伸して一旦巻き取った繊維を、図8に示す装置によって行ってもよく、又は図9に示すように、延伸に引き続き、一旦巻き取ることなく熱処理してもよい。弛緩熱処理時は糸張力が下がるが、低張力で安定した弛緩熱処理を行うという観点から、延伸して一旦巻き取った後、図8に示すように、糸が重力に従って上から下に走行するように引き取ることが好ましい。
本発明でいう結晶化度とはポリエステル系繊維の広角X線測定を行い、5°≦2θ≦40°の散乱強度グラフにおいて、2θ=5°と40°でベースラインを引き、非晶部のピーク値としてθ=19.5°の強度をAとし、結晶部のピーク値としてθ=25.5の強度をBとした時に、下記(1)式:
B/(A+B)×100 (1)
により算出した値(%)をいう。
f=1-△/360 (2)
{式中、△:I(φ)に見られるピークの半価全幅(FWHM)の合計(deg)}により算出した値をいう。尚、I(φ)を求める際には24<2θ<28°において回折強度の積算を行い、空セル補正等必要な補正を施すことが必要である。上記式(2)から明らかなように、結晶が完全配向している場合にはf=1となり、無配向の場合にはf=0となる。
配向度が0.70以上であれば優れた耐摩耗性を発現できるが、配向度が0.92を超えると配向が強いため、繊維軸方向には強く、繊維の強度アップには有効であるが繊維軸以外の方向は逆に弱くなり、本発明でいう耐摩耗性に関しては好ましくない。本発明における耐摩耗性とは、衣類着用時などに起こる、あらゆる方向からの摩擦への耐性に優れることであるから、あらゆる方向での耐摩耗性が求められる。弱い方向があればそこから摩耗が始まってしまい好ましくない。
上記結晶化度、配向度の特に好ましい範囲は、仮撚加工の有無によって異なる。仮撚加工されないポリエステル繊維の結晶化度は65~80%が特に好ましく、配向度は0.70~0.88が特に好ましい。仮撚加工されたポリエステル繊維の結晶化度は60~90%が特に好ましく、配向度は0.85~0.92が特に好ましい。
本発明のポリエステル繊維は、単独で使用してもよく、又は他の繊維と複合して使用してもよい。複合する他の繊維としては、例えば、他のポリエステル繊維、ナイロン、アクリル、キュプラ、レーヨン、ポリウレタン弾性繊維などが選ばれるが、これらに限られるものではない。本発明のポリエステル繊維のみからなる織編物であってもよいが、織物であれば、経緯の少なくとも一方に本発明のポリエステル繊維が含有されていればよく、経緯を構成する糸の30%以上が本発明のポリエステル繊維であることが好ましい。より好ましくは50%以上、特に好ましくは90%以上である。編物であれば、少なくとも片側表面に配される繊維の一部または全部、好ましくは50%以上、特に好ましくは90%以上が本発明のポリエステル繊維であればよい。
通常、織編物に後加工で各種機能を付与する場合、着用や洗濯の繰り返しによって機能が低下する問題があるが、本発明の織編物は、上述の各種加工によって付与された機能が、着用や洗濯を繰り返した後でも持続性に優れる。特に、本発明の織物を撥水加工した場合、撥水効果の持続性に優れる効果を有する。
本発明のポリエステル繊維を編物として使用する場合の編組織としては、丸編み、経編みのいずれでもよい。特にスナッギングの起こりやすい四段スムースなどの編み組織ではスナッグ改善効果も見られ、好適に使用することができる。
本発明の編物は、ART摩耗試験による摩耗性がN(NONE)又はL(LOW)であることが好ましい。衣料用編物の実着用における摩耗状況はART摩耗試験で評価でき、着用時の耐摩耗性を高めるにはART摩耗試験での摩耗性を向上することが有効である。
本発明の編物は、目付が80~350g/m2であることが好ましい。目付がこの範囲であれば、衣料用途に求められる編物性能を保持した上で耐摩耗性に優れる編物を得ることができる。本発明においては、特に30~84dtexの細繊度ポリエステル繊維を用いた編物においても、優れた耐摩耗性を有する。その結果、これらの糸を用いた、軽量、薄地の編物、例えば目付120g/m2以下の編物においても優れた耐摩耗性を有するため、薄地化・軽量化と耐摩耗性向上を両立することができる。
なお、使用した測定方法及び評価方法は以下の通りのものである。
JIS-L-1013(化学繊維フィラメント糸試験方法)に基づいて下記の条件で測定した。単糸繊度は、糸の繊度をフィラメント数で除して算出した。
試験片長さ :200mm
引張速度 :200mm/min
測定数 :5回/サンプル
上記(1)と同様に破断強度測定を行った。0.25sec毎の応力-伸度測定値を用いて、各点での応力を伸度で微分して求め、得られた微分ヤング率曲線より、伸度2%以上5%以下の領域の微分ヤング率の最小値を最小微分ヤング率とした。
オルソクロロフェノール(以下、OCPと略記する。)に試料ポリマーを溶解し、温度25℃においてオストワルド粘度計を用いて複数点の相対粘度ηrを求め、それを無限希釈度に外挿して求めた。
図7又は図9中の第1ロール(10)直前において未延伸糸を採取し、JIS-L-1013(化学繊維フィラメント糸試験方法)に基づいて限界延伸倍率を算出した。未延伸糸の限界延伸倍率(MD)は、未延伸糸の破断伸度を(E)とした場合に、MD=(E+100)/100で表される。
紡糸性の評価は、3日間紡糸を行った際、糸切れ率が5%以下を「○」、5%以上、もしくは紡糸不能の場合を「×」と判定した。
図10に示す糸摩耗試験機を用いて評価した。糸は20cm切り出し、総繊度が167dtex程度になるよう数本引き揃え、10回/m程度の撚りを入れる。#800の研磨紙を張り付けた直径1cmの金属棒に0.14g/dTexの加重をかけ糸を接触させる。0.6回/秒の速さで3cmの振幅で糸を摩擦させ、糸が切れるまでの回数(1往復を1回とする)を糸摩耗回数とする。研磨紙の状態が変わらないよう、10回ごとに研磨紙をずらして研磨紙が新しい状態で摩擦する。糸摩耗強度は下記式(3):
糸摩耗強度=糸摩耗回数/試験に用いた糸の総繊度 (3)
で算出される。
織物についてはマーチンデール摩耗試験機を用いて、JIS-L-1096に基づいて耐摩耗性を評価した。摩擦回数を20000回として、摩擦後の重量減少率を基準に5等級に区分して判定した。重量減少率(%)={(原布重量-摩擦後重量)/(原布重量)}×100で表し、重量減少率が4%以上ならば3等級以下、2%以上4%未満ならば4等級、2%未満ならば5等級として評価した。
編物についてはJIS L1076(ART法)に基づき、摩耗試験を行った。摩耗回数は60回とし、N(NONE)、L(LOW)、M(MEDIUM)、H(HIGH)で評価した。
風合いにおいては、熟練した検査人10人のうち、9人以上が良好と判断した場合を「○」、それ以外を「×」として評価した。10人全員が、特に柔らかく優れた風合いであると判断したものに関しては「◎」で評価した。
本例では、単糸繊度が紡糸性、耐摩耗性、風合い性能に及ぼす効果について説明する。
以下、実施例2の製造条件を示す。
図7のような紡糸機を用いて、第1ロールと第2ロール間で延伸、一旦巻き取った後に、図8に示す装置を用いて、供給ロールとリラックスロール間で弛緩熱処理することで、本発明の56dtex/24フィラメントの繊維を製造した。使用した製造条件は下記に示すとおりである。
ポリマー極限粘度:1.00dl/g
ペレット乾燥温度及び到達水分率:155℃、10ppm
押出機温度:295℃
スピンヘッド温度:300℃
紡糸口金:孔径0.25mmΦの孔が口金当たり24個を有する口金
ホットディスタンス:135mm
冷却風条件:温度;22℃、相対湿度;90%、速度;0.4m/sec
仕上げ剤:ポリエーテルエステルを主成分とする水系エマルジョン(濃度15wt%)
仕上げ剤付与率:0.75%
紡糸口金から仕上げ剤付与ノズルまでの距離:100cm
第1ロール:速度;1500m/分、温度;90℃
第2ロール:速度;3975m/分、温度;130℃
巻取機:SA-608機(旭エンジニアリング(株)社製)
綾角:5.8度
供給ロール:速度;555m/分、温度;85℃
ホットプレート温度:180℃
リラックスロール:速度;500m/分、温度;非加熱(室温)
リラックス張力:0.25cN/dtex
リラックス率:9%
巻量:1kg/1パーン
表1から明らかなように、本発明の実施例で得られた繊維は、紡糸性、糸摩耗性、風合いにおいて良好な結果を示した。
比較例1では、本発明で規定している範囲に対して単糸繊度が小さいので、風合いは良いものの、糸摩耗性において、本発明が期待した効果が得られなかった。
比較例2では、本発明が規定している範囲に対して単糸繊度が大きいので、糸摩耗性は良いものの、風合いが硬く、本発明が期待した効果が得られなかった。
本例では、極限粘度の効果について説明する。
実施例2と同様の紡糸・延伸・弛緩熱処理を行うにあたり、使用するポリマーの極限粘度を変更して紡糸及び巻取を行い、実施例5及び6、比較例3及び4の繊維を得た。
各実施例及び比較例により得られた繊維の物性、及び評価結果を表1に示す。
表1から明らかなように、本発明の実施例で得られた繊維は、紡糸性、糸摩耗性、風合いにおいて良好な結果を示した。
比較例3は、本発明が規定している範囲に対して極限粘度が低いため、糸摩耗性において、本発明が期待した効果が得られなかった。
比較例4は、本発明が規定している範囲に対して極限粘度が高いため、風合いが悪化し、本発明が期待した効果が得られなかった。
本例では、延伸倍率の効果について説明する。
実施例2と同様の紡糸・延伸・弛緩熱処理を行うにあたり、延伸倍率の限界延伸倍率に対する割合及びリラックス率を異ならせることにより、実施例7及び8、比較例5の繊維を得た。
各実施例及び比較例により得られた繊維の物性、及び評価結果を以下の表1に示す。
表1から分かるように、本発明の実施例で得られた繊維は、紡糸性、糸摩耗性、風合いにおいて良好な結果を示した。
比較例5は、本発明が規定している範囲に対して限界延伸倍率が高いので、紡糸性が悪化し、繊維を得ることができなかった。
本例では、熱処理温度の効果について説明する。
実施例2と同様の紡糸・延伸・弛緩熱処理を行うにあたり、熱処理温度を異ならせることにより、実施例9及び10、比較例6及び7の繊維を得た。
各実施例及び比較例により得られた繊維の物性、及び評価結果を以下の表1に示す。
表1から分かるように、本発明の実施例で得られた繊維は、紡糸性、糸摩耗性、風合いにおいて良好な結果を示した。
比較例6は、本発明が規定している範囲に対して熱処理温度が低いので、2%以上5%以下の領域における最小微分ヤング率の値が、20cN/dtex以上となり、糸摩耗性において本発明が期待した効果が得られなかった。
比較例7は、本発明が規定している範囲に対して熱処理温度が高いので、工程張力が下がり、紡糸性が悪化したため、本発明の繊維を得ることができなかった。
本例では、弛緩熱処理の際の、リラックス率の影響について説明する。
実施例2と同様の紡糸・延伸・弛緩熱処理を行うにあたり、弛緩熱処理に関与するロールの速度を変更することにより、実施例11、12、比較例8~10に示すリラックス率違いの繊維を得た。また、比較例9は、実施例2と同様の紡糸・延伸条件で巻取りを行った後、弛緩熱処理を行わなかった繊維である。
各実施例及び比較例により得られた繊維の物性、及び評価結果を以下の表1に示す。
表1から明らかなように、本発明の実施例で得られた繊維は、紡糸性、糸摩耗性、風合いにおいて良好な結果を示した。
比較例8と9は、本発明が規定している範囲に対してリラックス率が小さく、比較例8では-5%、つまり延伸熱処理をしたもの、比較例9は弛緩熱処理をしないものである。これらの場合においては、弛緩熱処理によって起こる繊維中のポリエステル分子の配向緩和効果が小さいか、もしくはないため、最小微分ヤング率が20cN/dtex以上となり、糸摩耗性は向上しなかった。
比較例10は、本発明が規定している範囲に対してリラックス率が大きく、弛緩熱処理の際の工程張力が低くなるため、紡糸性が悪化し、本発明の繊維を得ることができなかった。
(紡糸条件)
ペレット乾燥温度及び到達水分率:155℃、10ppm
押出機温度:295℃
スピンヘッド温度:300℃
紡糸口金:孔径0.25mmΦの孔が口金当たり24個を有する口金
ホットディスタンス:135mm
冷却風条件:温度;22℃、相対湿度;90%、速度;0.4m/秒
仕上げ剤:ポリエーテルエステルを主成分とする水系エマルジョン(濃度15wt%)
仕上げ剤付与率:0.75%
紡糸口金から仕上げ剤付与ノズルまでの距離:100cm
第1ロール:速度;1500m/分、温度;90℃
第2ロール:速度;3975m/分、温度;130℃
第3ロール:速度;3617m/分、温度;180℃
巻取機:SA-608機(旭エンジニアリング(株)社製)
綾角:5.8度
実施例2の製造条件に準じ、弛緩熱処理を行わずに、極限粘度が0.86で丸断面の34デシテックス12フィラメントのポリエステルフィラメントを紡糸し、得られたポリエステルフィラメントを経糸及び緯糸に用いて、経緯2mmのリップストップ組織の織物を、ウォータージェットルーム織機にて製織した。得られた織物を、精練の後、190℃で60秒間、幅入れ率3%、追い込み率5%でプレセットした後、液流染色機にて染色、乾燥した後、170℃で20秒間、しわを伸ばす程度に伸ばしてファイナルセットを行い、さらに160℃でカレンダー加工を行った。
得られた織物の特性は以下の表2に示す通り、耐摩耗性に優れており、風合いも良好であった。
経糸、緯糸に実施例2の製造条件に準じ、弛緩熱処理を行わずに製造された、極限粘度が1.20で11デシテックス10フィラメントのW型断面のポリエステルフィラメントを用いた他は、実施例14と同様の方法で製織、加工を行った。
得られた織物の特性は表2に示す通り、耐摩耗性に優れており、風合いも良好であった。
経糸に実施例1のポリエステルフィラメントを用い、緯糸に実施例2の製造条件に準じ、弛緩熱処理を行わずに製造された、極限粘度が0.68で56デシテックス24フィラメントのポリエステルフィラメントを用い、織組織をタフタとした以外は実施例14と同様の方法で製織、加工を行った。
得られた織物の特性は表2に示す通り、耐摩耗性に優れており、風合いも良好であった。
実施例2の製造条件に準じ、極限粘度が0.85で丸断面の34デシテックス12フィラメントのポリエステルフィラメントを紡糸し、一旦巻き取った後、図8に示す装置を用いて、ホットプレート温度160℃でリラックス率10%となるように熱弛緩処理を行った。この糸を経糸、緯糸に用いた他は、実施例1と同様の方法で製織した。得られた織物を、精練のあと、幅入れ率、追い込み率とも0%で190℃60秒間プレセットした後、液流染色機にて染色、乾燥した後、170℃で20秒間、通常のファイナルセットを行い、さらに160℃でカレンダー加工を行った。
得られた織物の特性は表2に示す通り、耐摩耗性に優れており、風合いも良好であった。
幅入れ率3%、追い込み率7%で190℃60秒間プレセットを行う以外は実施例17と同様の方法で製織、加工を行った。得られた織物の物性は以下の表2に示すとおり、耐摩耗性に優れており、風合いも良好であった。
実施例2の製造条件に準じ、弛緩熱処理を行わずに製造された、極限粘度0.62のポリエステル系繊維を用いた以外は実施例14と同様の織物を製織し、加工を行った。得られた織物の特性は以下の表2に示す通り、耐摩耗性に優れており、風合いも良好であった。
実施例2の製造条件に準じ、弛緩熱処理を行わずに製造された、極限粘度0.71で、7デシテックス5フィラメントのポリエステルフィラメントを用いた他は実施例14と同様の織物を製織し、加工を行った。得られた織物の特性は以下の表2に示す通り、耐摩耗性が劣っていた。
糸の熱弛緩処理を行わず、織物加工時に180℃で20%の幅出し熱セット(幅入れ率:-20%)を行った他は実施例17と同様の織物を製織し、加工を行った。得られた織物の特性は以下の表2に示す通り、耐摩耗性に劣っていた。
極限粘度[η]0.65の265デシテックス36フィラメントのY断面のポリエステル未延伸糸を3.3倍に延伸し、150℃で0.2%のリラックス熱処理を施した。その後、リラックス率0.6%、エアー圧力4kg/cm2で液体交絡処理を行った。この糸を経糸とし、通常のポリエステル糸84デシテックス/36フィラメントを緯糸として、WJLで織物(経92本/インチ 緯90本/インチ)を作成し、幅出し率5%(幅入れ率:-5%)で通常の染色加工を施した。得られた織物の特性は以下の表2に示すとおり、耐摩耗性が劣っていた。
実施例2の製造条件に準じ、弛緩熱処理を行わずに製造された、極限粘度[η]が0.75で166デシテックス48フィラメントの丸断面のポリエステルフィラメントを、1H仮撚機を用いて、糸速度577m/min、ドラフト1.75で190℃の条件で仮撚りを行った。その後、ダブル編機で四段スムース組織の編地を作成した。得られた編物を、精練の後、200℃で30秒間、幅入れ率10%でプレセットした後、常法を用いて液流染色機にて染色、乾燥した。その後、170℃で20秒間、しわを伸ばす程度の幅設定でファイナルセットを行った。
得られた編物の特性は以下の表3に示す通り、耐摩耗性に優れており、風合いも良好であった。
実施例2の製造条件に準じ、弛緩熱処理を行わずに製造された、極限粘度[η]が0.85の34デシテックス12フィラメントの丸断面のポリエステルフィラメントを用いた他は、実施例1と同様の方法で製編、加工を行った。
得られた編物の特性は以下の表3に示す通り、耐摩耗性に優れており、風合いも良好であった。
実施例2の製造条件に準じ、弛緩熱処理を行わずに製造された、極限粘度[η]が0.70で84デシテックス24フィラメントのポリエステルフィラメントを表側に、極限粘度[η]が0.56で84デシテックス72フィラメントのポリエステル加工糸(210℃で仮撚加工)を裏側に用い、メッシュ編地を作成した。得られた編物を、精練のあと、200℃で30秒間、幅入れ率10%でプレセットした後、常法を用いて液流染色機にて染色、乾燥した。その後、170℃で20秒間、しわを伸ばす程度の幅設定でファイナルセットを行った。得られた編物の特性は以下の表3に示す通り、耐摩耗性に優れており、風合いも良好であった。
28GGのトリコット編み機を用いて、フロントに実施例2の製造条件に準じ、弛緩熱処理を行わずに製造された、極限粘度[η]が0.75で、ポリエステルW型断面加工糸56dtex/30fを、ミドルに固有粘度[η]が0.68でポリエステル丸型断面加工糸56dtex/24fを、バックにポリウレタン繊維44dtexとして、トリコットハーフの組織にて編み立てた。実施例20と同様の加工処理をして、目付255g/m2の編地を得た。フロント筬から供給された糸が構成する面を表面として測定した、得られた編物の特性は以下の表3に示す通り、耐摩耗性に優れており、風合いも良好であった。
極限粘度が0.85で丸断面の84デシテックス24フィラメントのポリエステルフィラメントを紡糸し、一旦巻き取った後、図8に示す装置を用い、ホットプレート温度160℃でリラックス率10%となるように弛緩熱処理を行った。この糸を1H仮撚機を用いて、糸速度577m/min、ドラフト1.75で190℃の条件で仮撚りを行った。その後、ダブル編機で四段スムース組織の編地を作成した。得られた編物を、精練のあと、200℃で30秒間、幅入れ率10%でプレセットした後、常法を用いて液流染色機にて染色、乾燥した。その後、170℃で20秒間、しわを伸ばす程度の幅設定でファイナルセットを行った。得られた編物の特性は以下の表3に示すとおり、耐摩耗性に優れており、風合いも良好であった。
ポリエステル繊維の仮撚を、2Hで温度を210℃/150℃とした他は実施例20と同様に加工を行った。得られた編物の特性は以下の表3に示す通り、耐摩耗性に劣っていた。
実施例2の製造条件に準じ、弛緩熱処理を行わずに製造された、極限粘度[η]0.56の17デシテックス12フィラメントのポリエステルフィラメントを用いた他は実施例20と同様の編物を製編し、加工を行った。得られた編物の特性は以下の表3に示す通り、耐摩耗性に劣っていた。
実施例2の製造条件に準じ、弛緩熱処理を行わずに製造された、極限粘度[η]0.75の84デシテックス144フィラメントのポリエステルフィラメントを用いた他は実施例20と同様の編物を製編し、加工を行った。
得られた編物の特性は以下の表3に示す通り、耐摩耗性に劣っていた。
実施例22のプレセットを190℃で幅出し率20%(幅入れ率:-20%)で行った他は実施例22と同様の編物を製編し、加工を行った。
得られた編物の特性は以下の表3に示す通り、耐摩耗性に劣っていた。
2 押出機
3 ベンド
4 スピンヘッド
5 スピンパック
6 紡糸口金
7 非送風領域
8 冷却風
9 仕上げ剤付与ノズル
10 第1ロール
11 第2ロール
12 繊維チーズ
13 繊維チーズ
14 供給ロール
15 ホットプレート
16 リラックスロール
17 ガイド
18 トラベラーガイド
19 繊維パーン
20 第3ロール
21 可動アーム
22 モーター
23 支柱
24 摩耗紙
25 試料
26 荷重
Claims (16)
- エチレンテレフタレートを95モル%以上繰り返し単位とする耐摩耗性ポリエステル繊維であって、以下の要件(1)~(5):
(1)繊度が8dtex以上200dtex以下である、
(2)単糸繊度が1.0dtex以上4.0dtex以下である、
(3)破断強度が3.5cN/dtex以上である、
(4)破断伸度が20%以上50%以下である、そして
(5)繊維の応力-歪曲線における、伸度2%以上5%以下の領域の最小微分ヤング率が20cN/dtex以下である、
を満たすことを特徴とする前記ポリエステル繊維。 - 以下の要件(6):
(6)糸摩耗強度が0.5回/dtex以上である、
をさらに満たす、請求項1に記載のポリエステル繊維。 - 以下の要件(7):
(7)極限粘度が0.70dl/g以上1.30dl/g以下である、
をさらに満たす、請求項1に記載のポリエステル繊維。 - 以下の要件(8):
(8)結晶化度が60%~90%であり、かつ、配向度が0.70~0.92である、
をさらに満たす、請求項1~3のいずれか1項に記載のポリエステル繊維。 - 請求項1~4のいずれか1項に記載のポリエステル繊維が含有された耐摩耗性織物。
- マーチンデール摩耗試験による重量減少率が3万回で5%以下である織物である、請求項5に記載の耐摩耗性織物。
- 織物組織がリップストップタフタである織物である、請求項5又は6に記載の耐摩耗性織物。
- 請求項1~4のいずれか1項に記載のポリエステル繊維が含有された耐摩耗性編物。
- 目付が80~350g/m2である、請求項8に記載の耐摩耗性編物。
- 以下の工程:
極限粘度が0.70dl/g以上1.30dl/g以下であるポリエステルを溶融紡糸し、
限界延伸倍率の65%以上85%以下の延伸倍率で延伸処理し、そして
熱処理温度120℃以上220℃以下、リラックス率5%以上15%以下で弛緩熱処理する、
を含む、請求項1~4のいずれか1項に記載の耐摩耗性ポリエステル繊維の製造方法。 - 延伸処理した後、一旦巻取り、その後弛緩熱処理する、請求項10に記載の耐摩耗性ポリエステル繊維の製造方法。
- 延伸処理に引き続き、一旦巻取ることなく弛緩熱処理する、請求項10に記載の耐摩耗性ポリエステル繊維の製造方法。
- 染色加工工程でセット時に弛緩熱処理する、請求項5~7のいずれか1項に記載の耐摩耗織物の製造方法。
- 180~200℃で仮撚加工されたポリエステル繊維が含有された織物を、仮撚温度以上の温度で弛緩熱処理する、請求項13に記載の耐摩耗織物の製造方法。
- 染色加工工程でセット時に弛緩熱処理する、請求項8又は9に記載の耐摩耗編物の製造方法。
- 180~200℃で仮撚加工されたポリエステル繊維が含有された編物を、仮撚温度以上の温度で弛緩熱処理する、請求項15に記載の耐摩耗編物の製造方法。
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2010/062839 WO2012014309A1 (ja) | 2010-07-29 | 2010-07-29 | 耐摩耗性ポリエステル繊維及び織編物 |
| EP10855319.9A EP2599901B1 (en) | 2010-07-29 | 2010-07-29 | Abrasion-resistant polyester fiber and woven/knitted product |
| CN201080068332.3A CN103038403B (zh) | 2010-07-29 | 2010-07-29 | 耐磨耗性聚酯纤维以及机织/针织物 |
| JP2012526254A JP5700708B2 (ja) | 2010-07-29 | 2010-07-29 | 耐摩耗性ポリエステル繊維及び織編物 |
| KR1020137002117A KR101439069B1 (ko) | 2010-07-29 | 2010-07-29 | 내마모성 폴리에스테르 섬유 및 직편물 |
| US13/812,688 US20130130008A1 (en) | 2010-07-29 | 2010-07-29 | Abrasion resistant polyester fiber and woven/knitted product |
| US14/918,236 US10036104B2 (en) | 2010-07-29 | 2015-10-20 | Method for producing abrasion resistant polyester fiber |
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| PCT/JP2010/062839 WO2012014309A1 (ja) | 2010-07-29 | 2010-07-29 | 耐摩耗性ポリエステル繊維及び織編物 |
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| US13/812,688 A-371-Of-International US20130130008A1 (en) | 2010-07-29 | 2010-07-29 | Abrasion resistant polyester fiber and woven/knitted product |
| US14/918,236 Division US10036104B2 (en) | 2010-07-29 | 2015-10-20 | Method for producing abrasion resistant polyester fiber |
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| WO2012014309A1 true WO2012014309A1 (ja) | 2012-02-02 |
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| US (2) | US20130130008A1 (ja) |
| EP (1) | EP2599901B1 (ja) |
| JP (1) | JP5700708B2 (ja) |
| KR (1) | KR101439069B1 (ja) |
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| JP6722592B2 (ja) | 2014-05-21 | 2020-07-15 | フェデラル−モーグル・パワートレイン・リミテッド・ライアビリティ・カンパニーFederal−Mogul Powertrain Llc | 可撓性で耐摩耗性の織られた繊維スリーブおよびその構築方法 |
| EP3604668B1 (en) | 2017-03-31 | 2021-05-26 | Asahi Kasei Kabushiki Kaisha | Doubled-and-twisted yarn cord comprising organic fiber |
| CN107916467B (zh) * | 2017-11-24 | 2023-06-16 | 宁波格林美孚新材料科技有限公司 | 一种热塑性聚氨酯弹性体发泡单丝的成型工艺 |
| KR20200103481A (ko) | 2019-02-25 | 2020-09-02 | 효성화학 주식회사 | 모노필라멘트의 내마모 시험 장치 및 내마모 시험 방법 |
| JP7818403B2 (ja) * | 2019-03-26 | 2026-02-20 | システムズ・プロテクション・グループ・ユー・エス・リミテッド・ライアビリティ・カンパニー | 可撓性で耐摩耗性のある織られたスリーブおよびその構築方法 |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2599901B1 (en) | 2015-09-09 |
| EP2599901A1 (en) | 2013-06-05 |
| US20160040321A1 (en) | 2016-02-11 |
| US10036104B2 (en) | 2018-07-31 |
| JP5700708B2 (ja) | 2015-04-15 |
| KR101439069B1 (ko) | 2014-09-05 |
| JPWO2012014309A1 (ja) | 2013-09-09 |
| CN103038403B (zh) | 2015-06-24 |
| KR20130047733A (ko) | 2013-05-08 |
| EP2599901A4 (en) | 2014-06-04 |
| CN103038403A (zh) | 2013-04-10 |
| US20130130008A1 (en) | 2013-05-23 |
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