公开(公告)号：JPH1150335A

公开(公告)日：1999-02-23

申请号：JP20811997

申请日：1997-08-01

Applicant: TORAY INDUSTRIES

Inventor： MORITA SEIJI ,  NAGAOKA NORIMICHI ,  SATO YOSHIAKI

IPC: D06M11/00 ,  D01F6/62 ,  D01F8/14 ,  D03D15/00 ,  D06M11/38 ,  D06M101/00 ,  D06M101/16 ,  D06M101/30 ,  D06M101/32

Abstract: PROBLEM TO BE SOLVED: To obtain the subject multi-leaf-like fiber having numerous microvoids on the surface by including inorganic fine particles in each of a core component and a sheath component of core-sheath conjugate fiber, spinning the core-sheath conjugate fiber under specific conditions, removing the sheath component and dropping inorganic fine particles. SOLUTION: This method for producing a polyester fiber comprises adding 5.0-20 wt.% inorganic fine particles to a core component of a core-sheath conjugate fiber, adding

公开(公告)号：JPH08246277A

公开(公告)日：1996-09-24

申请号：JP5226995

申请日：1995-03-13

Applicant: TORAY INDUSTRIES

Inventor： NAGAOKA NORIMICHI ,  MORITA SEIJI ,  SATO YOSHIAKI

IPC: D01F6/62 ,  D01F6/92 ,  D01F8/14 ,  D02G3/04

Abstract: PURPOSE: To obtain a polyester-based blended yarn having different shrinkages consisting of a dividing-type composite yarn and a highly shrinkable yarn, having a soft and a bulky feelings and suitable for a raw material for woven and kitted products having an excellent stiffness and draping properties. CONSTITUTION: This method for producing a blended yarn having different shrinkages comprises simultaneously spinning a divided-type composite yarn having 0.05-0.5dl segment fineness after a division, where the number of filaments of a low shrinkage yarn and a high shrinkage yarn BF, KF and the number of segments after the separation of the BS satisfy respectively the equations BF>=4KS and BS>=20KS, with the high shrinkage yarn of 4-10dl monofilament fineness, then imparting 5-80/m number of interlaces by an air interlacing nozzle to form a blended yarn having different shrinkages. The divided-type composite yarn is an island in sea type-composite yarn consisting of a PET as a divided segment and a hot water-soluble polyester such as a PET copolymerized with sulfoisophthalic acid salt and isophthalic acid as a dividing component. The high shrinkage yarn is a composite high shrinkage yarn having a tri-lobal cross section consisting of a PET copolymerized with isophthalic acid as a highly modified cross section segment and a PET copolymerized with a sulfoisophthalic acid salt as a tapering-shaped segment, and either one or both of the yarns contains 1.2-10wt.% delusting agent.

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

IPC: D01F8/14 ,  D01D5/22

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

公开(公告)号：JP2001279526A

公开(公告)日：2001-10-10

申请号：JP2000090907

申请日：2000-03-29

Applicant: TORAY INDUSTRIES

Inventor： NAGAOKA NORIMICHI ,  MORI YOSHITOKI ,  MATSUMURA MASAHIDE

IPC: B41N1/24 ,  D01F6/62

Abstract: PROBLEM TO BE SOLVED: To obtain a polyester monofilament textile for a screen gauze having excellent dimensional stability, scum controlling effect, preventing effect on bright specks of pirn, controlling effect on halation, capable of being made into a high mesh, having a fine size, a high strength and a high modulus. SOLUTION: This method for producing a monofilament for screen gauge is characterized in that drawing is carried out by a multistage drawing process having two or more sets of hot rolls and the draw ratio of the multistage drawing process is shown by formula (1) Rt>=3.50 and formula (2) Rf=1.05 (Rt is the total draw ratio of the multistage drawing process and Rf is the draw ratio of the final stage of the multistage drawing process) when the polyester monofilament for a screen gauge is produced.

公开(公告)号：JP2001089939A

公开(公告)日：2001-04-03

申请号：JP26511199

申请日：1999-09-20

Applicant: TORAY INDUSTRIES

Inventor： MORI YOSHITOKI ,  NAGAOKA NORIMICHI ,  MATSUMURA MASAHIDE

IPC: D01F8/14 ,  D01D5/22

Abstract: PROBLEM TO BE SOLVED: To obtain a latently crimpable polyester-based conjugate yarn having both-stabilized operability and excellent crimp developing properties by selecting a polyethylene terephthalate(PET) having a proper melt viscosity for a spinning temperature and a polybutylene terephthalate(PBT) having a proper difference in melt viscosity from the PET. SOLUTION: This latently highly crimpable polyester conjugate yarn has a difference in melt viscosity [Ya-b between the PBT the component and the PET component at a temperature (X) within the range of 260-290 deg.C satifying the following formula (a), further the melt viscosity [Yb] of the PET component satisfying the following formula (b) and the two components conjugated into a side-by-side type in (35:65) to (65:35) ratio. The conjugate yarn has >=17% crimp extension percentage when subjected to a boiling water treatment. (a) -2.72X+993

公开(公告)号：JPH10317230A

公开(公告)日：1998-12-02

申请号：JP12573797

申请日：1997-05-15

Applicant: TORAY INDUSTRIES

Inventor： MORITA SEIJI ,  NAGAOKA NORIMICHI ,  SATO YOSHIAKI

IPC: D01F1/10 ,  D01D5/34 ,  D01F8/14

Abstract: PROBLEM TO BE SOLVED: To obtain the subject yarn having specific shapes, in which cross-sectional shapes of a core part and a sheath part of the conjugate yarn form similar figures, which has prescribed physical properties, which causes excellent opaque feeling when made into a woven fabric and a knitted fabric, which has proper tension, rigidity, repulsing feeling and luster, light-weight feeling and drape besides characteristic touch such as dry feeling and crispy feeling. SOLUTION: This core-sheath conjugate yarn comprises a core part and a sheath part having cross-sectional shapes of 3- to 8-leave shapes of similar shapes, has

公开(公告)号：JPH07126951A

公开(公告)日：1995-05-16

申请号：JP27385893

申请日：1993-11-01

Applicant: TORAY INDUSTRIES

Inventor： SATO YOSHIAKI ,  MORITA SEIJI ,  NAGAOKA NORIMICHI

IPC: D01F6/62 ,  D01D5/08 ,  D02G1/18 ,  D02G3/04 ,  D02G3/36 ,  D03D15/00 ,  D03D15/04 ,  D06M11/00 ,  D06M11/38

Abstract: PURPOSE:To obtain a yarn of mixed filaments differing in deniers comprising a fine- denier dividable segment and a high-denier segment with a different cross section and giving woven and knitted fabrics which have high softness, bulkiness and rich drapeability. CONSTITUTION:(A) Polyethylene terephthalate(PET) containing 1.2 to 10wt.% of titanium oxide dull additive is prepared as the polymer 1 for the segment to be divided 1, and (B) a hot water-soluble isophthalic acid-copolymerized PET as a dividable segment 2 and as a taperable segments 3 and (C) an isophthalic acid-copolymerized PET containing 1.2 to 10wt.% titanium oxide dull additive as a highly different cross section segment 4 are also prepared. Both the low-shrinkage dividable conjugated filaments comprising the polymer components 1 and 2 with the denier of the divided segment of 0.05 to 0.5de and the conjugated filaments whose single yarn deniers are 4 to 10 comprising polymer components 3 and 4 are simultaneously melt-extruded through a same spinneret to give the yarn of mixed filaments differing in deniers. The mixed filament yarn is used as weft and warp to form a woven fabric, then treated with hot water to leach out the components 2, 3 and obtain a woven fabric in which the count of the denier of the fine filaments is more than 20 to that of the thick filaments.

公开(公告)号：JPH0657540A

公开(公告)日：1994-03-01

申请号：JP20897192

申请日：1992-08-05

Applicant: TORAY INDUSTRIES

Inventor： SUGIMOTO TAKETOSHI ,  NAGAOKA NORIMICHI

IPC: D01D4/04 ,  D01F11/04 ,  D06M13/02 ,  D06M13/51 ,  D06M13/513 ,  D06M15/643 ,  D06M101/00 ,  D06M101/16

Abstract: PURPOSE:To prevent decrease of mold release effect after spinning for a long time by applying dimethylsilicone oil to spinneret face and then further applying an alkylphenylsilicone oil thereto. CONSTITUTION:After dimethylsilicone oil is applied to the spinneret face, an alkylphenylsilicone oil having more excellent heat resistance than dimethylsilicone oil is further applied thereto and the spinneret face is covered with a silicone coating film having double structure. The cleaning of the spinneret face is also readily carried out.

公开(公告)号：JP2001140128A

公开(公告)日：2001-05-22

申请号：JP32195899

申请日：1999-11-12

Applicant: TORAY INDUSTRIES

Inventor： NAGAOKA NORIMICHI ,  MORITA SEIJI ,  MATSUMURA MASAHIDE

IPC: D01F8/14 ,  D01D5/34

Abstract: PROBLEM TO BE SOLVED: To obtain a high-strength and high-modulus polyester monofilament fiber of a fine denier for a screen plain gauze having excellent dimensional stability and scum and halation suppressing effects which cannot be obtained by a conventional monofilament fiber and capable of providing a high mesh. SOLUTION: This polyester monofilament for the screen plain gauze is characterized as comprising 0.05-1.0 wt.% of inorganic fine particles in at least a sheath part in a core-sheath type conjugate monofilament comprising a core part which is polyethylene terephthalate and the sheath part that is a copolyester consisting essentially of ethylene terephthalate and having >=5.74 CN/dtex breaking strength, 15.0-30.0% breaking elongation and 4.85-6.18 CN/dtex modulus at 10% elongation.

公开(公告)号：JP2000220033A

公开(公告)日：2000-08-08

申请号：JP1955099

申请日：1999-01-28

Applicant: TORAY INDUSTRIES

Inventor： MORITA SEIJI ,  NAGAOKA NORIMICHI ,  MATSUMURA MASAHIDE

IPC: D01F8/14

Abstract: PROBLEM TO BE SOLVED: To obtain the subject conjugate fiber which is prepared by laminating plural components different in viscosity in the fiber axial direction and having comfortable stretch back properties when formed into a woven or a knitted fabric without using a polyurethane-based yarn by establishing a specific relationship between the breaking elongation and the shrinkage stress. SOLUTION: This conjugate fiber is obtained by laminating two components different in viscosity in the fiber axial direction and has the breaking elongation and the shrinkage stress in a relationship of the formula Y>= 6.0×(1/X)) [Y is the shrinkage stress (g/d); X is the breaking elongation (%)] and further >=5 crimps/cm number of developed crimps. The difference in intrinsic viscosity ΔIV of the two components is preferably 0.12-0.35 and the intrinsic viscosity of the low-viscosity component is preferably 0.45-0.55. Furthermore, the intrinsic viscosity of the high-viscosity component is preferably 0.60-0.85 and the compounding ratio of the high-viscosity component to the low-viscosity component is preferably (40/60) to (70/30) expressed in terms of weight ratio.