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公开(公告)号：JPH08120536A
公开(公告)日：1996-05-14
申请号：JP25830494
申请日：1994-10-24
Applicant: TORAY INDUSTRIES
Inventor： FUKUOKA MITSURU , MAEDA YUHEI , FUKUHARA MOTOTADA
Abstract: PURPOSE: To obtain a new bulky textured yarn, having high levels of bulkiness, stretchability, stiffness, resiliency, a soft touch feeling, etc., especially a polyester false twist textured yarn suitable for a woolly woven or knitted fabric having fullness. CONSTITUTION: This false twist textured yarn is obtained by combining filament groups, comprising polyethylene terephthalate and having mutually different single filament deniers. At least one of the filament groups has 3-8 denier single filament size and comprises a high-polymerization degree polymer having 0.70-1.0 intrinsic viscosity and the other filament groups have 0.2-2 denier single filament sizes and comprise a low-polymerization polymer having 0.55-0.65 intrinsic viscosity. The difference in the intrinsic viscosity between both the filament groups is >=0.1.
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公开(公告)号：JPH07305224A
公开(公告)日：1995-11-21
申请号：JP9491594
申请日：1994-05-09
Applicant: TORAY INDUSTRIES
Inventor： MAEDA YUHEI , NAKAMURA SHUSEI , UEDA KUNIHIKO
Abstract: PURPOSE:To provide a method for producing ultrafine polyester filaments having sufficient mechanical properties and a sufficient thermal shrinkage constant, not having dyeing irregularity, and good in a soft property by a low cost one process method in good fiber productivity. CONSTITUTION:This method for spinning and drawing ultrafine polyester filaments having a single filament fineness of 1.4 denier comprises extruding a melted polyester from a spinneret 1, cooling and solidifying the extruded filaments, bundling the filaments at a position apart in a distance of (m) ((d) is the fineness of the finest single filament among the filaments) below the spinneret, taking up the filaments with a non-heated first godet roller 5 at a take-up rate of 2000-3500m/min without winding up the filaments, heating and drawing the filaments with a first thermally treating device 6 having a steam atmosphere of atmospheric pressure and set between the first godet roller 5 and a non-heated second godet roller, thermally treating the drawn filaments with a second thermal treating device 8, and subsequently winding up the filaments.
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公开(公告)号：JPH07278952A
公开(公告)日：1995-10-24
申请号：JP7331994
申请日：1994-04-12
Applicant: TORAY INDUSTRIES
Inventor： MAEDA YUHEI , NAKAMURA SHUSEI , UEDA KUNIHIKO
Abstract: PURPOSE:To control a draw ratio, to reduce a cost and to obtain uniform drawn yarn in producing polyester yarn by one process method. CONSTITUTION:(1) In producing this polyester yarn by spinning a polyester-based polymer from a spinneret, cooling, drawing between a first godet roller 6 and a second godet roller 8 at a temperature >= the glass transition temperature polyester yarn and heat-treating the yarn in a steam atmosphere 9 at >=105 deg.C, the yarn winding angle of the second godet roller is >=170 degree and
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公开(公告)号：JPH06287810A
公开(公告)日：1994-10-11
申请号：JP7570693
申请日：1993-04-01
Applicant: TORAY INDUSTRIES
Inventor： MAEDA YUHEI , AISO HARUO , NAKAMURA SHUSEI
IPC: D01F6/62
Abstract: PURPOSE:To obtain the subject fibers prevented from shrinkage unevenness in the form of a wound package and malformation on the surface and/or at the edge face of such package, by spinning polybutylene terephthalate at a greatly high speed followed by heat treatment and then winding the resultant yarns. CONSTITUTION:A polyester consisting mainly polybutylene terephthalate is spun at a speed of as high as >=7000m/min and heat treated at >=100 deg.C by a heating device 7 in between the 1st take up roller 5 and the 2nd take up roller 6b and then wound on a winder 9 while maintaining winding tension at a constant level by continuously measuring yarn tension using a tensiometer 8.
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公开(公告)号：JPH04194024A
公开(公告)日：1992-07-14
申请号：JP31877090
申请日：1990-11-22
Applicant: TORAY INDUSTRIES
Inventor： TATSUMI HIROAKI , MAEDA YUHEI , MITSUYOSHI TAKEHIKO
Abstract: PURPOSE:To obtain the subject fiber, excellent in strength, elongation, etc., and capable of performing ultrahigh-speed spinning without yarn and single filament breakage, etc., by copolymerizing terephthalic acid with an aliphatic dicarboxylic acid and spinning the resultant copolymer at a specific take-off speed. CONSTITUTION:(C) A >=8C aliphatic dicarboxylic acid (e.g. suberic acid or sebacic acid) in an amount of 2-20mol% (based on the total dicarboxylic acid) is added and polymerized with (A) terephthalic acid and (B) ethylene glycol and the resultant polymer is then spun at a take-off speed satisfying the formula (V is the take-off speed; (d) is the single filament denier of taken off yarn) to afford the objective fiber.
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Patent Agency Ranking
公开(公告)号：JPH03200831A
公开(公告)日：1991-09-02
申请号：JP34115589
申请日：1989-12-28
Applicant: TORAY INDUSTRIES
Inventor： SASAMOTO FUTOSHI , MAEDA YUHEI , MITSUYOSHI TAKEHIKO
Abstract: PURPOSE:To obtain a high quality and high polymerization degree polyester or polyamide of a low dispersion of quality within a short time by subjecting a polyester or a polyamide to solid-state polymerization in an atmosphere of a low temperature plasma. CONSTITUTION:A polyester or a polyamide is subjected to solid-state polymerization in an atmosphere of a low temperature plasma. Polymers to which the above polymerization process is applicable covers polyesters mainly consisting of repeating ethylene terephthalate or butylene terephthalate units and polyamides such as nylon 6, nylon 66 and nylon 46. The polyester or polyamide may be one containing a small amount (below 10wt.%) of a third component as a comonomer or/and additives. The intrinsic viscosity of the polyester to be subjected to the solid-state polymerization is desirably 0.5-0.8, and the relative viscosity of the nylon in sulfuric acid is desirably 2-4.
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公开(公告)号：JPH03185106A
公开(公告)日：1991-08-13
申请号：JP32216689
申请日：1989-12-11
Applicant: TORAY INDUSTRIES
Inventor： HIRAI SATOSHI , AISO HARUO , MAEDA YUHEI
Abstract: PURPOSE:To obtain the subject spinneret effective in preventing melt-sticking caused by the mutual contact of filaments and end breakage and yarn unevenness caused by the insufficient cooling and exhibiting stable spinning performance by arranging circular introducing holes in the form of a ring and forming plural extrusion holes having equal diameter on the bottom of the introducing holes at specific intervals in the form of a ring. CONSTITUTION:The objective spinneret 1 is produced by arranging circular introducing holes in the form of a ring and forming plural extrusion holes 3 having equal diameter on the bottom 4 of the introducing holes in a row to form a ring. The minimum hole distance between the extrusion holes 3 is >=2 times the diameter of the extrusion hole and the average hole distance calculated by (sum of the hole distances l1 and l'1)divided by (total number of extrusion holes-1) is
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公开(公告)号：JPH03185105A
公开(公告)日：1991-08-13
申请号：JP32216589
申请日：1989-12-11
Applicant: TORAY INDUSTRIES
Inventor： HIRAI SATOSHI , MAEDA YUHEI , AISO HARUO
Abstract: PURPOSE:To obtain the subject spinneret effective in preventing melt-sticking caused by the mutual contact of filaments and end breakage and yarn unevenness caused by the insufficient cooling and exhibiting stable spinning performance by forming introducing grooves of a thermoplastic polymer on the back surface of a spinning and arranging a number of extrusion holes at the bottom part of the introducing groove in high density. CONSTITUTION:The objective spinneret is produced by forming introducing grooves 2 of a thermoplastic polymer in the form of blocks on the back surface of a flat spinneret 1 having a thickness of >=5mm interposing a separation zone 5 between the grooves and arranging plural extrusion holes having equal diameters at the bottom part of the introducing groove in a row. The width W of the bottom part 4 of the introducing groove is =2 times the length L of the extrusion hole and the average hole distance l is
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公开(公告)号：JP2003238669A
公开(公告)日：2003-08-27
申请号：JP2002035466
申请日：2002-02-13
Applicant: TORAY INDUSTRIES
Inventor： YAMADA HIROYUKI , MAEDA YUHEI , ARANISHI YOSHITAKA
Abstract: PROBLEM TO BE SOLVED: To provide a thermoplastic cellulose acetate having an aliphatic polyester graft side chain which is excellent in the moldability and mechanical properties and a fiber made of it which is excellent in the ability of melt spinning and the strength elongation properties. SOLUTION: The thermoplastic cellulose acetate has the aliphatic polyester side chain with a specified degree of acetyl substitution, a specified molecular weight of the graft side chain and a specified melt viscosity, and the fiber is made of it. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2002138378A
公开(公告)日：2002-05-14
申请号：JP2000324240
申请日：2000-10-24
Applicant: TORAY INDUSTRIES
Inventor： HANDA NOBUYOSHI , MAEDA YUHEI , KIMURA TOSHIAKI
Abstract: PROBLEM TO BE SOLVED: To obtain woven and knitted fabrics of an aliphatic polyester-based fiber having high dyeing fastness, soft feeling and excellent color development and biodegradability. SOLUTION: The dyed materials of woven and knitted fabrics are characterized in that, in printing the aliphatic polyester-based fiber, after printing with a dye, woven and knitted fabrics are subjected to color development treatment with superheated steam at 120-150 deg.C or saturated steam at 100-120 deg.C.
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