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公开(公告)号：JP2003247125A
公开(公告)日：2003-09-05
申请号：JP2002041561
申请日：2002-02-19
Applicant: TORAY INDUSTRIES
Inventor： MORI YOSHITOKI , KUWAYAMA SATOSHI , SATO MASAYUKI
IPC: D01F8/14
Abstract: PROBLEM TO BE SOLVED: To provide a polyester conjugated fiber for a high-quality worsted knitted fabric which has sufficient flexural rigidity, and further has a firm/springy feeling, stretch-back properties, a resilient feeling, and an elegant appearance quality. SOLUTION: This polyester conjugated fiber comprises a side-by-side-type conjugated fiber composed of two components of polyesters of which the viscosity coefficients are different from each other, wherein a component having a higher viscosity coefficient than the other comprises at least a polyester having polytrimethylene terephthalate repeating units in an amount of ≥80 mol%, and the conjugated fiber has a size of single yarn of 12-35 dtex, an elongation percentage of ≥20%, a modulus of elasticity of ≥90%, a crimp elongation percentage of ≤20%, and a cross section of which the ratio of a line segment CD to anther line segment EF satisfies the following inequity: 1.2≤CD/EF≤4.0 (wherein A and B are each a point of contact of the joint surface of the two components with the perimeter in the cross section of the conjugated fiber; X is a line which passes through the center of a line segment AB and perpendicular to the line segment AB; C and D are each a point of intersection of the line X with the perimeter of the fiber; Y is a line which passes through the center of a line segment CD and perpendicular to the line segment CD; and E and D are each a point of intersection of the line Y with the perimeter of the fiber). COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2002220724A
公开(公告)日：2002-08-09
申请号：JP2001012848
申请日：2001-01-22
Applicant: TORAY INDUSTRIES
Inventor： KUWAYAMA SATOSHI , SATO MASAYUKI , MATSUMURA MASAHIDE
Abstract: PROBLEM TO BE SOLVED: To provide a method for the melt-spinning of an aliphatic polyester fiber capable of keeping the spinneret clean even after the spinning for a long period and prolonging the retouching period of the spinneret. SOLUTION: An aliphatic polyester fiber is produced by melt spinning by using a spinneret having a spinneret face depth of 10-200 mm and coating the spinneret face with a mending agent consisting of a silicone-based releasing agent having a heating loss of
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公开(公告)号：JP2003221735A
公开(公告)日：2003-08-08
申请号：JP2002018344
申请日：2002-01-28
Applicant: TORAY INDUSTRIES
Inventor： MORI YOSHITOKI , KUWAYAMA SATOSHI , SATO MASAYUKI
IPC: D01F8/14
Abstract: PROBLEM TO BE SOLVED: To provide a polyester conjugated yarn having good yarn manufacturing and high-order processability and suitable for a woven or a knitted fabric having high stretchability by using polytrimethylene terephthalate (PTT) as a high-viscosity component constituting a side-by-side conjugated yarn. SOLUTION: This polyester side-by-side conjugated yarn for the highly stretchable woven or knitted fabric comprises two components of polyesters having different viscosities. In at least a high-viscosity component, ≥80 mol% of repeating units are polytrimethylene terephthalate. The length ratio CD/EF of the segment CD to the segment EF (CD/EF) and the length ratio GD/HD of the segment GD to the segment HD satisfy formulas (1) and (2). 1.4≤CD/EF≤4.0 (1) and 1.2≤GD/HD≤2.5 (2). The stretch elongation under 1.8×10 -3 cN/dtex load is ≥45%. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2003213525A
公开(公告)日：2003-07-30
申请号：JP2002011816
申请日：2002-01-21
Applicant: TORAY INDUSTRIES
Inventor： KUWAYAMA SATOSHI , KOBAYASHI YASUKI , MATSUMURA MASAHIDE
IPC: D01F8/14
Abstract: PROBLEM TO BE SOLVED: To provide a conjugate polyester fiber for a high-quality worsted fabric-like woven or knit cloth having high crispness and stiffness as well as stretch-back property and resilience. SOLUTION: The conjugate polyester fiber is a side-by-side conjugate fiber composed of (A) a high-viscosity polyester component composed of a polyethylene terephthalate having an ethylene terephthalate repeating unit content of ≥85 mol% and (B) a low-viscosity polyester component. The single fiber fineness of the fiber is 12-35 dtex and the crimp elongation is ≥120% after a boiling water treatment. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2002004132A
公开(公告)日：2002-01-09
申请号：JP2000184275
申请日：2000-06-20
Applicant: TORAY INDUSTRIES
Inventor： KUWAYAMA SATOSHI , SATO MASAYUKI , MATSUMURA MASAHIDE
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a polypropylene terephthalate fiber, having a clean spinneret after long time spinning and capable of extending a spinneret surface retouching period. SOLUTION: This method for producing the polypropylene terephthalate fiber is characterized by using a silicone-based releasing agent having
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Patent Agency Ranking
公开(公告)号：JP2003268628A
公开(公告)日：2003-09-25
申请号：JP2002061531
申请日：2002-03-07
Applicant: TORAY INDUSTRIES
Inventor： KUWAYAMA SATOSHI , MATSUMURA YOSHITAKA , SATO MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To provide an antibacterial polyester fiber usable for an alkali thinning use. SOLUTION: This antibacterial polyester fiber is made of a polyethylene terephthalate containing ≥85 mol% ethylene terephthalate repeating unit, contains 0.3-5.0 wt.% phosphate-based antibacterial particles containing a metallic ion and has a residual elongation of 30-200%. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2003228825A
公开(公告)日：2003-08-15
申请号：JP2002027808
申请日：2002-02-05
Applicant: TORAY INDUSTRIES
Inventor： KUWAYAMA SATOSHI , MORI YOSHITOKI , SATO MASAYUKI
IPC: B24B37/20 , B24B37/24 , D01F8/14 , D03D15/00 , D06M11/00 , D06M11/38 , D06M101/32 , G11B5/84 , B24B37/00
Abstract: PROBLEM TO BE SOLVED: To provide a base fabric for processing texture of high performance for obtaining a magnetic disk of the coming generation. SOLUTION: In the base fabric for processing magnetic disk texture, a sea- island type polyester conjugate fiber is used, where an island component is a polyester component (A) being polyethylene terephthalate having ≥85 mol% recurring unit of ethylene terephthalate and containing 2 to 7 wt.% inorganic particles, and a sea component is a polyester component (B) having high alkali reduction rate compared with that of the polyester component (A), single yarn after alkali reduction has 0.03 to 0.07 dtex denier and the relation between the diameter of recessed parts formed by dropping of the inorganic particles contained in the polyester component (A) as the alkali reduction is performed and the diameter of grinding particles used for processing the magnetic disk texture satisfy specific equations. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2003227042A
公开(公告)日：2003-08-15
申请号：JP2002027810
申请日：2002-02-05
Applicant: TORAY INDUSTRIES
Inventor： KOBAYASHI YASUKI , KUWAYAMA SATOSHI , SATO MASAYUKI
IPC: D02G3/04
Abstract: PROBLEM TO BE SOLVED: To obtain a polyester-based conjugate fiber which has excellent firmness/stiffness feeling, stretch-back property, repulsive feeling and characteristics of natural fiber. SOLUTION: The polyester-based conjugate fiber comprises a side-by-side conjugate fiber composed of a high-viscosity polyester component (A) which is a polyethylene terephthalate having ≥85 mol % ethylene terephthalate repeating unit and a low-viscosity polyester component (B) and is obtained by combining the polyester fiber having 12-35 dtex single fiber fineness with a natural fiber or subjecting the fibers to mixed weaving or interknitting. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2001226832A
公开(公告)日：2001-08-21
申请号：JP2000032360
申请日：2000-02-09
Applicant: TORAY INDUSTRIES
Inventor： KUWAYAMA SATOSHI , NAGAOKA NORIMICHI , MATSUMURA MASAHIDE
Abstract: PROBLEM TO BE SOLVED: To provide a high-class woven or knitted fabric having sufficiently quality feeling, and comfortable stretch-back properties without using a polyurethane-based fiber-yarn, and further having soft feeling, a large bulking and resilience while eliminating the fault of a conventional technique. SOLUTION: This polyester conjugate fiber is a side-by-side type conjugate fiber consisting of (A) a highly viscous polyester component and (B) a lowly viscous polyester component, and is characterized by >=7.0 peaks/cm number of crimps after a boiling water treatment, and the rate of the crimps, the number of the crimps and the shrinkage of the fiber, satisfying the following formulas: 2.0
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公开(公告)号：JP2004011067A
公开(公告)日：2004-01-15
申请号：JP2002167427
申请日：2002-06-07
Applicant: TORAY INDUSTRIES
Inventor： KUWAYAMA SATOSHI , MATSUMURA YOSHITAKA , SATO MASAYUKI
IPC: D01F8/14
Abstract: PROBLEM TO BE SOLVED: To stably produce a stretch back yarn having a bulkiness like a natural fiber, high bulkiness and stretchability and good crispness and toughness while solving the defects of conventional technique. SOLUTION: The fiber is a modified cross-section side-by-side conjugate polyester fiber composed of (A) a high-shrinkage polyester component consisting of a polypropylene terephthalate containing ≥85 mol% propylene terephthalate repeating unit and (B) a low-shrinkage polyester component consisting of a polyethylene terephthalate containing ≥85 mol% ethylene terephthalate repeating unit. The conjugate joint face between the high-viscosity polyester component A and the low-viscosity polyester component B in the cross-section of the fiber is constituted by two or more different groups of single fibers and all single fibers have the same conjugation ratio. COPYRIGHT: (C)2004,JPO
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