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公开(公告)号：JP2000199125A
公开(公告)日：2000-07-18
申请号：JP329899
申请日：1999-01-08
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , SAKAI TAKAAKI , SATO MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To obtain polyester fibers capable of giving woven/knitted fabrics with excellent puffiness, soft touch and resilient feeling by drawing undrawn polyester yarns with its structural integrity parameter within a given range at each specific temperature and draw ratio followed by heat setting at a specific temperature. SOLUTION: The polyester fibers are obtained by drawing undrawn polyester yarns with its structural integrity parameter (ε0.2) being 30-85% of polyethylene terephthalate, polypropylene terephthalate, polybutylene terephthalate, or the like at 75-110 deg.C, pref. 85-105 deg.C and at a draw ratio of 1.01-1.35 followed by heat setting at 110-145 deg.C, pref. 120-140 deg.C, more pref. 125-135 deg.C. The polyester fibers thus obtained have the following characteristics: Uster unevenness: pref.
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公开(公告)号：JPH0610209A
公开(公告)日：1994-01-18
申请号：JP16479792
申请日：1992-06-23
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , MAEDA YUHEI , MATSUMOTO TADAYUKI
Abstract: PURPOSE:To provide the subject heat-treating unit capable of freely shifting the heating zone in the vertical direction in a state where the heat-treating unit is fixed and of also freely selecting the heating zone length in producing fibers different, e.g. in the single yarn fineness, the kind of polymer and the take-off speed. CONSTITUTION:In a filament heat-treating unit comprising at least a heating cylinder and designed so as to heat the atmosphere of a high-speed span filament cooled and coagulated once, this heat-treating unit for high speed spinning is characterized by heat-insulating cylinders 3 and 4 detachably installed on one or both ends of the inner peripheral surface of the heating cylinder 1. According to the kind of fiber, the distance from the nozzle to the heating zone can be changed in a state where the heat-treating unit is fixed. Various kinds of fibers, therefore, can be produced by the same spinning machine in a state where the heat-treating unit is fixed. Consequently, the faults in the conventional technique, i.e., problems, e.g. about extension of a new device for shifting the heat-treating unit, control of the thread handling area and accuracy of setting of the heat-treating unit can be solved.
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公开(公告)号：JP2003105645A
公开(公告)日：2003-04-09
申请号：JP2001302704
申请日：2001-09-28
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , MAEDA YUHEI , SAKAI TAKAAKI
Abstract: PROBLEM TO BE SOLVED: To provide a new polylactic acid crimped yarn having excellent high temperature dynamic characteristics. SOLUTION: This polylactic acid crimped yarn which is formed from >=50 wt.% of lactic acid monomer, has excellent high temperature dynamic characteristics, and simultaneously satisfies the following characteristics. Strength at 90 deg.C >=0.5 cN/dtex. CR>=10%.
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公开(公告)号：JP2002180343A
公开(公告)日：2002-06-26
申请号：JP2000376378
申请日：2000-12-11
Applicant: TORAY INDUSTRIES
Inventor： MATSUO MAKOTO , SHIMIZU TOSHIAKI , OCHI TAKASHI
Abstract: PROBLEM TO BE SOLVED: To produce a low-cost polyester mixed yarn that has a sheath-core conjugated structure in which the sheath is softer and more flexible than the core and can impart a large swell and soft feeling to its woven or knitted fabrics by manifesting a large difference caused by occurrence a difference in the thermal shrinkage between two kinds of multifilament yarns when the fabrics are dyed in usual manners after the mixyarn is woven or knitted into the fabrics. SOLUTION: The objective polyester mixed yarn is constituted with a core- sheath type conjugated multifilament yarn A of the core made of polystyrene and the sheath made of polyester and a high shrinkage copolymerized polyester multifilament yarn B as the third component, and the initial Young modulus of the filament of the core-sheath conjugated multifilament yarn A Ea (cN/dtex) and the initial Young modulus of the filament of the polyester multifilament yarn B Eb (cN/dtex) characteristically satisfy the following formulas [1] and [2]: 20
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公开(公告)号：JP2001207337A
公开(公告)日：2001-08-03
申请号：JP2000021396
申请日：2000-01-31
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , KIDAI AKIRA , SATO MASAYUKI
IPC: D01F8/14
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a latently crimpable polyester yarn by which color developing properties that have hitherto been problems can be improved and a fabric having slight yarn unevenness and excellent in stretchability can be obtained. SOLUTION: This method for producing a latently crimpable polyester yarn is characterized in that a yarn prepared by spinning a polyester and a modified polyester having =85 deg.C drawing temperature and >=NDR×1.20 draw ratio (NDR is a natural draw ratio) by using a drawing machine equipped with at least one pair of hot rollers, then subjected to heat treatment on the hot roller and subsequently stretched between the heat-treating hot roller and an unheated roller by >=0.7%.
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Patent Agency Ranking
公开(公告)号：JP2001040537A
公开(公告)日：2001-02-13
申请号：JP21346199
申请日：1999-07-28
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , KIDAI AKIRA , NABESHIMA KEITARO
Abstract: PROBLEM TO BE SOLVED: To obtain the subject yarn having an improved crimp retention ratio and excellent stretchability, useful for a fabric, and the like, by twisting a specific latently crimp developing polyester fiber yarn and providing the yarn with an ability of developing a hollow structure in the length direction of the central part of the yarn by heat treatment. SOLUTION: A latently crimp developing polyester fiber yarn which is a yarn composed of a latently crimp developing polyester fiber made of two or more kinds of polymers such as a polypropylene terephthalate, a polyethylene terephthalate, and which simultaneously satisfies =0.25 cN/dtex maximum value of shrinkage stress, >=30% crimp extension ratio E0 when heat-treated in a free-load state and >=5% crimp extension ratio E35 when heat-treated under 3.5×10-3 cN/dtex load is twisted and has ability of developing a hollow structure in the length direction of the central part of the yarn by heat treatment. A fabric is formed by using the yarn and the hollow structure is developed by heat treatment to preferably produce the objective fabric.
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公开(公告)号：JP2001032146A
公开(公告)日：2001-02-06
申请号：JP20454799
申请日：1999-07-19
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , KANNO KOJI , MOCHIZUKI KATSUHIKO
IPC: D03D15/04
Abstract: PROBLEM TO BE SOLVED: To obtain a soft hard twisted woven fabric excellent in stretchability and a dry feeling in a polyester hard twisted woven fabric. SOLUTION: This hard twisted woven fabric is a woven fabric using a filament yarn obtained by subjecting a filament yarn substantially comprising polypropylene terephthalate and having =15,000 twist multiplier K as a warp yarn and/or a weft yarn. The woven fabric has >=95% recovery percentage of elongation at 30% elongation and
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公开(公告)号：JP2000328358A
公开(公告)日：2000-11-28
申请号：JP13019899
申请日：1999-05-11
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , SATO MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To provide soft polyester fibers which can suitably be used for fabrics having excellent swollen touch, excellent soft touch and excellent repulsive touch and scarcely irregularly dyed, are soft, and have good heat resistance and dimensional stability, and to provide the fabric. SOLUTION: Soft polyester fibers are characterized by simultaneously satisfying the following characteristics (1) to (3). (1) Initial tensile resistance degree =40%, measured by a temperature modulation DSC. (3) The crystal size of (100) surface >=20 Å.
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公开(公告)号：JP2000248425A
公开(公告)日：2000-09-12
申请号：JP4788699
申请日：1999-02-25
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , SAKAI TAKAAKI , SATO MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To provide a highly shrinkable polyester fiber having slight yarn unevenness for forming a cloth having excellent bulging, softness and repulsive feeling and excellent in quality without dyeing unevenness. SOLUTION: This highly shrinkable polyester fiber having slight yarn unevenness simultaneously satisfies following properties. (1) boiling water shrinkage SHW=15-35%; (2) SHW>=dry heat shrinkage SHD; (3) birefringence Δ>=0.130; (4) crystallinity χ=10-20%; (5) standard deviation of SHW scattering FTA
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公开(公告)号：JP2000220052A
公开(公告)日：2000-08-08
申请号：JP2155999
申请日：1999-01-29
Applicant: TORAY INDUSTRIES
Inventor： ISHII YUKO , OCHI TAKASHI , SATO MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To provide a simple method for producing polyester yarns of uneven thickness, which can produce the low-shrinkage yarn only by drawing. SOLUTION: This method for producing polyester yarns of uneven thickness draws undrawn yarns having a boiling water shrinkage of 20% or less and birefringence index of 70×10-3 or less at a draw ratio of (1 + elongation in a fixed stress stretching region (%)/100(%)×1.2) or less.
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