公开(公告)号：JPH0359174B2

公开(公告)日：1991-09-09

申请号：JP12148081

申请日：1981-08-04

Applicant: TORAY INDUSTRIES

Inventor： SASAMOTO FUTOSHI ,  OKA KENICHIRO ,  MINEO MASANORI

IPC: B60C9/04 ,  B60C9/00 ,  D01F6/62 ,  D02G3/48 ,  D03D1/00 ,  D03D15/00 ,  D03D15/12

公开(公告)号：JPS6257731B2

公开(公告)日：1987-12-02

申请号：JP14123179

申请日：1979-11-02

Applicant: TORAY INDUSTRIES

Inventor： MATSUMOTO TADAYUKI ,  MINEO MASANORI ,  HIRAI SATOSHI

IPC: D02G3/04 ,  D02J1/00

公开(公告)号：JPS62184115A

公开(公告)日：1987-08-12

申请号：JP2400886

申请日：1986-02-07

Applicant: TORAY INDUSTRIES

Inventor： SASAMOTO FUTOSHI ,  MINEO MASANORI

IPC: D01F6/60 ,  D01F6/90 ,  D02J1/22

Abstract: PURPOSE:To obtain the titled fiber having high elastic modulus and low shrinkage, by dividing spun polyamide yarn having high polymerization degree into multiple stages, drawing the yarn at a specific draw ratio corresponding to more than a specific fraction of total draw ratio and heat-treating the drawn yarn under application of fractional stretches divided into multiple stages. CONSTITUTION:A polyamide having high polymerization degree (relative viscosity of >=3.0 in sulfuric acid) is melted in a spinning machine, extruded through a spinneret and solidified by cooling. The undrawn fiber is divided into >=2 stages after optional temporary winding and drawn at a draw ratio corresponding to >=80% of the total draw ratio. The drawn fiber is heat-treated under application of fractional stretches divided into plural stages to obtain the objective fiber suitable for woven fabric for reinforcement of a large-sized tire. The first-stage drawing is preferably carried out at a draw ratio of >=65% of the total draw ratio under fractional stretches divided into plural stages.

公开(公告)号：JPS6229532B2

公开(公告)日：1987-06-26

申请号：JP8610378

申请日：1978-07-17

Applicant: TORAY INDUSTRIES

Inventor： MINEO MASANORI ,  IMAEDA KOZO ,  ARAYA YOSHIO

IPC: D02J1/00 ,  D02J1/08 ,  D02J1/22

公开(公告)号：JPS61275423A

公开(公告)日：1986-12-05

申请号：JP11028585

申请日：1985-05-24

Applicant: TORAY INDUSTRIES

Inventor： MITSUYOSHI TAKEHIKO ,  SASAMOTO FUTOSHI ,  MINEO MASANORI

IPC: D01F8/14 ,  D01F6/84

Abstract: PURPOSE:To obtain the titled fiber having high yarn strength, dyeable easily under normal pressure and giving a dyed fiber having excellent fastness to light, by using respective specific copolyesters as the core component and the sheath component and setting the core ratio within a specific range. CONSTITUTION:A polyester copolymerized with 1.0-2.6mol% compound of formula [M is alkali metal such as Na, Li, K, etc.; R and R' are alkyl or -(CH2) nOH; n is integer of >=2) (S-component) is used as the core component, and a polyester copolymerized with 3.0-6.5mol% S-component, 5-20mol% dicarboxylic acid component or 1-15wt% glycol component is used as the sheath component. The core ratio is set to >=0.8S1(0.35S2-1)/(S2-0.8S1) and

公开(公告)号：JPS60162810A

公开(公告)日：1985-08-24

申请号：JP1694384

申请日：1984-02-03

Applicant: TORAY INDUSTRIES

Inventor： SASAMOTO FUTOSHI ,  OKA KENICHIROU ,  MINEO MASANORI

IPC: D01F6/62 ,  D01D5/12 ,  D02J1/22

Abstract: PURPOSE:To obtain polyester fibers satisfying mechanical properties and uniformity fit for practical use, by cooling a melt extruded polymer at the glass transition temperature or below, and passing the resultant extruded fibers through a specific heating zone. CONSTITUTION:A thermoplastic polyester filament yarn once cooled to the glass transition temperature or below is passed through a heating zone, e.g. a heating cylinder 1, satisfying the following relation; D>=D0+10mm.phi, L>=30mm. and Q>= 9,400mm. (D is the diameter of the supply part 2 for the heating gas; D0 is the yarn path diameter in the heating zone; L is the length of the supply part 2 for the heating gas; Q is the volume of the supply part 2 for the heating gas) while introducing the heating gas from the supply part 2 for the heating gas through holes 4 at 10-80Nl/min into the heating cylinder 1 and then taken off at >=3,000 m/min take-off speed.

公开(公告)号：JPS60139812A

公开(公告)日：1985-07-24

申请号：JP24547383

申请日：1983-12-28

Applicant: TORAY INDUSTRIES

Inventor： SASAMOTO FUTOSHI ,  OKA KENICHIROU ,  MINEO MASANORI

IPC: D01D5/12 ,  D01F6/62

Abstract: PURPOSE:A thermoplastic polyester is melt-extruded, allowed to run through a heating zone where a hot gas is introduced through a specific straightening filter and heat drawing is effected, then the yarn is wound up to give the titled fiber of good mechanical properties and good uniformily. CONSTITUTION:A thermoplastic polyester such as polyethylene terephthalate is melt extruded through the spinneret into a yarn Y, which is cooled down with air beneath its glass transition point. Then, the cooled yarn Y is allowed to run through the heating zone in the cylinder 1 where stream-straightening filters 4 satisfying equation I (X is absolute filtration diameter) and equation II (L is the length of straightening filter) are arranged so that they surround the yarn path and hot fluide of inert gas is introduced through the filters at a flow rate of 10-80Nl/min to effect non-contact heat drawing. The resultant yarn is taken up at a speed higher than 3,000m/min to give the objective fiber.

公开(公告)号：JPS60126315A

公开(公告)日：1985-07-05

申请号：JP22855683

申请日：1983-12-05

Applicant: TORAY INDUSTRIES

Inventor： YAMASHITA MASAYUKI ,  OKA KENICHIROU ,  MINEO MASANORI

IPC: D01D5/08 ,  B65H54/28 ,  D01F6/62 ,  D02J1/08

Abstract: PURPOSE:To suppress the occurrence of fluff or filament breakage and wind uniform filament yarns, by providing plural fluid interlacing devices between an oiling device and a winder, and winding the filament yarns at a high speed by the no godet method. CONSTITUTION:Cooled and solidified polyester filaments (Y) are oiled in an oiling device 3, interlaced with interlacing nozzles (5a) and (5b) and then wound at >=5,000m/min spinning speed by a winder 7. The distance (l4) between the two interlacing nozzles (5a) and (5b) is set at >=20cm, preferably >=30cm, and a guide 4 for stopping vibration propagation to prevent the propagation of yarn vibration is preferably provided.

公开(公告)号：JPS6075609A

公开(公告)日：1985-04-30

申请号：JP18124883

申请日：1983-09-29

Applicant: TORAY INDUSTRIES

Inventor： SASAMOTO FUTOSHI ,  OKA KENICHIROU ,  MINEO MASANORI

IPC: D02J1/22 ,  D01D5/12 ,  D01F6/62

Abstract: PURPOSE:To obtain the titled uniform fiber, stably, by melt-spinning a thermoplastic polyester polymer through a spinneret, cooling below the glass transition temperature, drawing in a hot zone heated with hot gas introduced actively into the zone at a specific flow rate, and winding at a high speed. CONSTITUTION:A thermoplastic polyester polymer is subjected to the melt spinning through a spinneret, and cooled to a temperature below the glass transition temperature. The obtained yarn Y is transferred through a hot zone to effect the thermal drawing in the zone. In the above process, the heating cylinder 1 is furnished with plural small holes 3 and a hot-gas-supplying part 2 surrounding said holes 3, and the heating zone is heated with the electric heater 4. Hot gas satisfying the formula T>=Tg+10 [T is the temperature of the hot gas ( deg.C), and Tg is the glass transition temperature of the polymer] and the formula 10 =3,000m/min to obtain the objective fiber.

公开(公告)号：JPS6048870A

公开(公告)日：1985-03-16

申请号：JP15412483

申请日：1983-08-25

Applicant: TORAY INDUSTRIES

Inventor： OKA KENICHIROU ,  MINEO MASANORI

IPC: D02J1/00 ,  B65H54/00 ,  B65H54/02 ,  B65H54/28 ,  B65H54/70 ,  B65H55/04 ,  D01D7/00 ,  D01F6/62 ,  D02J1/08

Abstract: PURPOSE:To reduce the inner distortion depending on the winding position and the aging of thread quality, by employing specific reciprocation speed and winding speed of spindle in a spindle drive winder where the package under winding is made contactless against others. CONSTITUTION:The winding speed must be higher than 5,000m/min, preferably higher than 5,500m/min, where the thread produced through high speed spinning has such inner structure as crystal orientation fc>=0.85 while non-crystal orientation fa