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公开(公告)号：JPH0124889B2
公开(公告)日：1989-05-15
申请号：JP6112884
申请日：1984-03-30
Applicant: TORAY INDUSTRIES
Inventor： SASAMOTO FUTOSHI , OKA KENICHIRO , MINEO MASANORI
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公开(公告)号：JPS6468515A
公开(公告)日：1989-03-14
申请号：JP22161287
申请日：1987-09-03
Applicant: TORAY INDUSTRIES
Inventor： SASAMOTO FUTOSHI , OKADA TAKEHIKO
Abstract: PURPOSE:To provide the titled fiber having respective specific solution haze, intrinsic viscosity, strength, elongation and dry-heat shrinkage, high strength, high elongation and low shrinkage and suitable as a rubber-reinforcing material. CONSTITUTION:The objective fiber has a solution haze of =0.8 (preferably 0.8-1.2), a strength of >=9.5g/d (preferably 9.5-16g/d), an elongation of >=10% (preferably 10-20%) and a dry-heat shrinkage of =0.82 and a solution haze of in a solvent such as acetone for 1-7min, drawing the product and heat-treating at >=200 deg.C.
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公开(公告)号：JPS6468514A
公开(公告)日：1989-03-14
申请号：JP22436687
申请日：1987-09-07
Applicant: TORAY INDUSTRIES
Inventor： SASAMOTO FUTOSHI , OKADA TAKEHIKO
Abstract: PURPOSE:To obtain the titled fiber having high strength and toughness and low shrinkage and suitable as a rubber-reinforcing fiber, by immersing a specific undrawn polyester fiber in a solvent which does not dissolve but swells the fiber and drawing and heat-treating the fiber under specific condition. CONSTITUTION:An undrawn fiber of a polyester (e.g. polyethylene terephthalate) having an intrinsic viscosity of >=0.85 (preferably >=0.91) and a birefringence of (preferably ) is immersed in a solvent which does not essentially dissolve the polyester but can swell the polyester (e.g. formic acid, DMF, methyl ethyl ketone or diphenyl) at >=20 deg.C for 0.1sec-6min at definite length. The immersed fiber is successively drawn and heat-treated at a drawing temperature of 20-110 deg.C (preferably 50-100 deg.C) and a heat-treatment temperature of 180-260 deg.C to obtain the objective fiber.
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公开(公告)号：JPS61231215A
公开(公告)日：1986-10-15
申请号：JP6643785
申请日：1985-04-01
Applicant: TORAY INDUSTRIES
Inventor： SASAMOTO FUTOSHI , OKA KENICHIRO , MINEO MASANORI
Abstract: PURPOSE:To obtain filament yarns having mechanical properties withstanding the practical use, by regulating the intrinsic viscosity, length of a heat insulating zone and distance from a spinneret to the inlet of a heating zone in solidifying extruded filaments once and hot-drawing the solidified filaments in the heating zone. CONSTITUTION:The intrinsic viscosity of a polymer is adjusted to 0.66-0.75, and the length (L1) of a heat insulating zone from the a spinneret surface to the blowing surface of cooling air is adjusted to 7-22cm. The distance (L2) from the spinneret to the inlet of the heating zone is adjusted to 1-2m. The extruded polyester filaments are cooled and solidified, introduced into the heating zone, e.g. a heating cylinder 1, hot-drawn the heating zone, passed through an oiling device 7 and taken off at
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公开(公告)号：JPS61194213A
公开(公告)日：1986-08-28
申请号：JP3454085
申请日：1985-02-25
Applicant: TORAY INDUSTRIES
Inventor： SASAMOTO FUTOSHI , OKA KENICHIRO , MINEO MASANORI
Abstract: PURPOSE:The titled fiber that is in a certain ranges of filament denier, filament count, fluctuation in stress of S-S curve in individual filament, elongation at break and stress at yielding point, thus giving strongly twisted fabrics of good quality, when woven, because the difference between filaments are reduced. CONSTITUTION:The objective fiber is composed of polyester having ethylene terephthalate recurring units of less than 1.4, preferably less than 1.1 filament denier, more than 36, preferably more than 48 filament count, less than 7%, preferably less than 5% in stress fluctuation at 5% elongation in S-S curve of individual filaments, more than 30% elongation at break and more than 2g/d stress at the yielding point.
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Patent Agency Ranking
公开(公告)号：JPS60259613A
公开(公告)日：1985-12-21
申请号：JP11452084
申请日：1984-06-06
Applicant: TORAY INDUSTRIES
Inventor： SASAMOTO FUTOSHI , OKA KENICHIROU , MINEO MASANORI
Abstract: PURPOSE:To obtain yarn having high strength by one process, by extruding a polymer from a spinneret into a spinning column of pressurized atmosphere set directly under it, solidifying it under cooling, pulling out the solidified polymer from the spinning column, drawing it under heating in a normal-pressure atmosphere. CONSTITUTION:A thermoplastic polymer capable of being subjected to melt spinning is extruded in a molten state from the spinneret 7 into the spinning column S of pressurized atmosphere set directly under it, cooled and solidified, and pulled out from the sealing part 24 at the bottom of the spinning column S to an atmosphere at normal pressure. Then, the polymer is introduced into the heating column 35 and drawing under heating. It is pulled by the godet rollers 30a and 30b, and wound around the winder 33. When the polymer has high melt viscosity, preferably the heating column 8 is set at the outer periphery directly under the spinneret 7. Preferably the pressure in the spinning column S is >=1kg/cm , preferably >=3kg/cm higher than normal pressure.
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公开(公告)号：JPS60204577A
公开(公告)日：1985-10-16
申请号：JP6112784
申请日：1984-03-30
Applicant: TORAY INDUSTRIES
Inventor： SASAMOTO FUTOSHI , OKA KENICHIROU , MINEO MASANORI
Abstract: PURPOSE:To control the amorphous orientation of a polyester fiber package, by setting a yarn length of 3-40m per unit length of 1m in the axial direction of a bobbin, and setting a taper angle of 25 deg. or less at the end face of the package. CONSTITUTION:In a polyester fiber package, the yield stress is 1.7-2.8g/d, the range DELTAT of the fluctuation in the stretch tension measured in the axial direction of the fiber at 4% of stretch is 0.13g/d or less, the yarn length per unit length of 1m in the axial direction of a bobbin is 3-40m, and the taper angle at the end face of the package is 25 deg. or less. For that reason, the amorphous orientation of the package is controlled to be appropriate.
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公开(公告)号：JPS60199915A
公开(公告)日：1985-10-09
申请号：JP4928684
申请日：1984-03-16
Applicant: TORAY INDUSTRIES
Inventor： OKA KENICHIROU , SASAMOTO FUTOSHI , MINEO MASANORI
Abstract: PURPOSE:To manufacture the titled fiber having randomly distributed nonuniformity and feeling, and giving nonuniform color density by dyeing, by passing a molten and spun fiber through a specific hot atmosphere before taken up, thereby drawing and heat-treating in the atmosphere. CONSTITUTION:Spun polyester fiber is cooled to a level below a temperature higher than the glass transition point of the polyester by 40 deg.C, introduced into a hot atmosphere heated at 150-300 deg.C, and taken up at a speed of >=3,000m/min. The heating fluid blasted into the hot atmosphere zone is localized by passing the fluid through different nozzles A1, A2, etc., and a polyester fiber containing the heat-drawn zones, undrawn zones and intermediate zones intermixed with each other can be produced.
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公开(公告)号：JPS60199914A
公开(公告)日：1985-10-09
申请号：JP4928584
申请日：1984-03-16
Applicant: TORAY INDUSTRIES
Inventor： OKA KENICHIROU , MINEO MASANORI , SASAMOTO FUTOSHI
Abstract: PURPOSE:To provide the titled fiber which is a multifilament yarn composed of a group of polyester single fibers wherein the variation of the strength within the fibers is higher than a specific level, exhibiting on constant-stress drawing region, having a specific yield stress, and having resemblance to natural fiber in nonuniformity and feeling. CONSTITUTION:A multifilament yarn composed of a group of polyester single fibers wherein the variation (CV%) of the 5% elongation stress of the fibers in the stress-strain curve of the single fiber is >=5%, preferably >=7%, exhibiting no constant-stress drawing region in the stress-strain curve of the multifilament, and having a yield stress of 1.2-3.5g/d, preferably 1.4-3.0g/d. The multifilament contains preferably >=3/m interlocking points of the single fiber along its length.
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公开(公告)号：JPS60134020A
公开(公告)日：1985-07-17
申请号：JP23984283
申请日：1983-12-21
Applicant: TORAY INDUSTRIES
Inventor： SASAMOTO FUTOSHI , OKA KENICHIROU , MINEO MASANORI
Abstract: PURPOSE:To obtain the titled yarn having improved mechanical properties and uniformity inexpensively, by subjecting a thermoplastic polyester to melt spinning, cooling the yarn to =3,000m/min, to give the desired yarn.
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