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公开(公告)号：JP2000248430A
公开(公告)日：2000-09-12
申请号：JP4788799
申请日：1999-02-25
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , KIDAI AKIRA , SATO MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To obtain a latent crimp-expressing polyester fiber which has an improved crimp-expressing ability under a condition restrained in a woven fabric and is useful for a fabric or the like by melt-spinning polybutylene terephthalate and polyethylene terephthalate having a lower intrinsic viscosity than that of the polybutylene terephthalate under specific conditions, wherein both the polyesters have a difference of prescribed value or larger between their intrinsic viscosities. SOLUTION: Polybutylene terephthalate having an intrinsic viscosity [η] of >=1.20 and polyethylene terephthalate having an intrinsic viscosity [η] of >=0.55 are melted and spun in the form of a side-by-side conjugate fiber or an eccentric sheath-core conjugate fiber to obtain a latent crimp-expressing polyester fiber having a crimp extension-retaining rate of >=5% and a shrinking stress of >=0.20 CN/dtex. Both the polyesters has an intrinsic viscosity difference Δ[η] of >=0.60. It is preferable that middle twisted or strongly twisted latent crimp-expressing polyester fibers having a twist coefficient K of 8,000-25,000 are used to produce a polyester fabric having excellent stretchability, and it is also preferable that a polyester blended yarn is produced from the latent crimp-expressing polyester fibers and low shrinkable polyester fibers having a boiling water rate of
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公开(公告)号：JPH11181624A
公开(公告)日：1999-07-06
申请号：JP35085897
申请日：1997-12-19
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , SATO MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To simply produce a spontaneously extensible yarn excellent in quality without any dyeing speck, etc., and useful for clothes applications with good productivity by spinning and directly drawing a polyester under specific conditions. SOLUTION: A polyester is melt spun to provide a yarn having 0.020-0.065 degree of birefringence and the resultant yarn is then drawn without being once wound at 1.01-1.35 draw ratio, =110 deg.C heat-setting temperature (which is the heat-treating temperature of the yarn after drawing and the temperature of the second hot roller 2HR after the drawing in the case of a hot roller drawing machine) to impart the spontaneous extensibility to the resultant yarn.
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公开(公告)号：JPH10168656A
公开(公告)日：1998-06-23
申请号：JP33674196
申请日：1996-12-17
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , FUNATSU YOSHIJI , FUKUHARA MOTOTADA
Abstract: PROBLEM TO BE SOLVED: To produce a polyester combined filament yarn, excellent in bulkiness, softness, body and stiffness and extremely reduced in dyeing unevenness. SOLUTION: This polyester combined filament yarn is a sheath-core conjugated filament yarn having a sheath polymer which is substantially polyethylene terephthalate and a core polymer that is polypropylene or polyethylene. The core polymer compounding ratio is 0-30wt.% and the filament yarn comprises two or more yarn groups at different core polymer compounding ratios of the core-sheath conjugated yarn.
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公开(公告)号：JPH08246247A
公开(公告)日：1996-09-24
申请号：JP4265095
申请日：1995-03-02
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , FUKUHARA MOTOTADA , KIDAI AKIRA , KIKUTANI YUUJI
IPC: D01F8/14
Abstract: PURPOSE: To produce the subject fiber while suppressing yarn unevenness and breakage by melt spinning a polyester fiber using a specific polymer as a core component. CONSTITUTION: A polyester fiber is obtained by using a polymer (a polystyrene, PMMA, etc., against PET), whose temperature dependence of viscosity in tension is higher than that of a polyester, as a core component polymer. The content of the core component polymer based on the total of the polyester fiber is 0.01-15wt.%. The method of the present invention enables the increase in the amount of ejection every unit time.
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公开(公告)号：JP2003227036A
公开(公告)日：2003-08-15
申请号：JP2002023398
申请日：2002-01-31
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , MAEDA YUHEI , OOME HIROKAZU
IPC: C08L59/00 , C08L67/04 , C08L101/16 , D01F6/92
Abstract: PROBLEM TO BE SOLVED: To obtain a polymer alloy fiber which has excellent biodegradability and abrasion resistance and has not conventionally existed. SOLUTION: The polymer alloy fiber comprises a resin obtained by mixing a polylactic acid with a polyacetal and has ≥1.0 cN/dtex strength. COPYRIGHT: (C)2003,JPO
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Patent Agency Ranking
公开(公告)号：JP2003137037A
公开(公告)日：2003-05-14
申请号：JP2001337824
申请日：2001-11-02
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a high-function vehicle interior trim material having an excellent autonomous humidity control function and excellent durability, capable of carrying various functional substances. SOLUTION: This high-function vehicle interior trim material has a resin layer containing a mesoporous material on at least one face. A polymer forming the resin layer contains a member crosslinked by a crosslinking agent at least in part.
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公开(公告)号：JP2001271239A
公开(公告)日：2001-10-02
申请号：JP2000075794
申请日：2000-03-17
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , SAKAI TAKAAKI , MURAKAMI KAKUJI
Abstract: PROBLEM TO BE SOLVED: To obtain a combined filament yarn with a difference in shrinkage for forming a fabric excellent in process passableness in a high-order processing process, touch feeling and further lightweight properties and rich in surface change and to provide a method for producing the combined filament yarn. SOLUTION: This combined filament yarn with the difference in shrinkage comprises a low shrinkable yarn which is a special core-sheath conjugate yarn and a highly shrinkable yarn that is a polyester single yarn and the low shrinkable yarn has a partial hollow part formed by breaking a polymer arranged in the core part and further the following characteristics. The combined filament yarn with the difference in shrinkage has >=2.0% of U% unevenness of thickness in the fiber longitudinal direction. 4-10% shrinkage percentage in boiling water, =3.0% U%.
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公开(公告)号：JP2001207336A
公开(公告)日：2001-08-03
申请号：JP2000019785
申请日：2000-01-28
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 high-grade 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 in the first stage and at >=NDR×1.00 draw ratio (NDR is a natural draw ratio) in the first stage and >=NDR×1.20 total draw ratio in the second stage when the conjugate yarn is drawn in the many stages.
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公开(公告)号：JP2001089950A
公开(公告)日：2001-04-03
申请号：JP26164599
申请日：1999-09-16
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , SAKAI TAKAAKI , SATO MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To provide a soft fabric woven from a polyester hard twist yarn, excellent in stretching properties and dyeing evenness, and having a beautiful appearance on the fabric surface. SOLUTION: This woven fabric is obtained by subjecting a polyester yarn to hard twist treatment to form the polyester hard twist yarn having a twist coefficient (K) [expressed and calculated by the formula: K=T×D1/2; is a twist number per meter of the yarn; and D is a fineness of the fiber thread (dtex × 0.9)] of >=15,00, then weaving the hard twist yarn into the fabric having an elongation recovery percentage and a stress of >=95% and
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公开(公告)号：JP2000199145A
公开(公告)日：2000-07-18
申请号：JP329799
申请日：1999-01-08
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , SAKAI TAKAAKI , SATO MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To obtain the subject fiber capable of obtaining simply and in a good operating property, also hardly generating dyeing specks, excellent in touch feeling, spontaneous elongating property and suitable for a knitted or woven fabric by heat-setting a polyester stretched fiber obtained under a specific condition by using a crepe-surfaced roller. SOLUTION: This method for producing a polyester fiber having a spontaneous elongating property obtained by stretching at =110 deg.C heat-setting temperature comprises performing the heat setting by using a crepe-surfaced roller having 2-8S surface coarseness. Further, the fiber is preferably stretched so as to have
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