-
公开(公告)号：JPH03199419A
公开(公告)日：1991-08-30
申请号：JP33779189
申请日：1989-12-26
Applicant: TORAY INDUSTRIES
Inventor： SAITO ISOO , YOSHINO MASATO , SEKI MASAO , OGURA AKIRA
Abstract: PURPOSE:To obtain the subject fiber having high strength and sufficient elongation and dimensional stability under heat by cooling and solidifying a molten spun fiber of a polyhexamethylene adipamide having high polymerization degree, taking up the fiber at a relatively low speed and drawing the obtained intermediate oriented fiber in a plasma atmosphere. CONSTITUTION:A cooling gas is blown in a cooling zone against a molten spun fiber produced from chips of a polyhexamethylene adipamide having a relative viscosity etar of >=3.0 in sulfuric acid and containing polyhexamethylene adipamide unit as >=95mol% of the recurring units of the molecular chain. The cooled and solidified fiber is wound round a roller rotating at a speed of and, as necessary, subjected to additional drawing to a birefringence of . The obtained intermediate oriented fiber is drawn in a plasma atmosphere under a tension of 1.0-5.0g/de at a draw ratio of 1.5-7.0.
-
公开(公告)号：JPS5860012A
公开(公告)日：1983-04-09
申请号：JP15819481
申请日：1981-10-06
Applicant: TORAY INDUSTRIES
Inventor： YOSHINO MASATO , HONDA CHIKARA , SAITOU ISOO
Abstract: PURPOSE:The titled fibers, consisting of a specific amount of repeating structural units of hexamethylene adipamide, having a specific relative viscosity in sulfuric acid, high tenacity and improved dimensional stability and fatigue resistance, and suitable for industrial materials. CONSTITUTION:Polyhexamethylene adipamide, consisting of 95mol% or more repeating structural units of hexamethylene adipamide, and having >=2.8 relative viscosity in sulfuric acid is melt spun through a spinneret 1 of preferably an extruder spinning machine to give an extruded filamentary yarn (Y), which is then taken off by take-off rollers 6 at >=2000 m/min speed. The resultant filamentary yarn is adjusted to >=25X10 birefringence, once taken up or without taking up hot drawn at >=3.5 draw ratio by draw rolls 7 to give the aimed filamentary yarn satisfying the characteristics of the formulas: (T/D)>=7.5g/ denier, 30>=E>=12%, Mi>=28g/denier[(T/D) is the strength; E is the residual elongation; Mi is the initial modulus], etc.
-
公开(公告)号：JPH0797746A
公开(公告)日：1995-04-11
申请号：JP24285693
申请日：1993-09-29
Applicant: TORAY INDUSTRIES
Inventor： YOSHINO MASATO , MATSUMOTO TADAYUKI , KONNO YOSHIHIRO , NAKAGAMI TOKUJI
IPC: D03D27/00
Abstract: PURPOSE:To provide pile cloth resistant to the falling-down of pile and the generation of white blurring, giving soft feeling to the skin and having a high- quality appearance. CONSTITUTION:The pile yarn to be used in this pile cloth is composed of >=3 kinds of conjugate fibers and non-conjugate fibers having different conjugation ratios or crimping degrees. The falling-down resistance of the pile can be improved by using a conjugate fiber having an average single fiber fineness of >=2-de and blending the conjugate fiber and a non-conjugate fiber to the pile yarn in an amount of >=30wt.% each. The single fiber fineness of the non- conjugate fiber is preferably =0.15-wt.% each of titanium dioxide.
-
公开(公告)号：JPH06280147A
公开(公告)日：1994-10-04
申请号：JP6663493
申请日：1993-03-25
Applicant: TORAY INDUSTRIES
Inventor： YOSHINO MASATO , MATSUMOTO TADAYUKI
Abstract: PURPOSE:To obtain a nonwoven fabric free from nep and unevenness of thickness, excellent in surface quality and having high stretchability by forming the nonwoven fabric using a conjugate fiber having both of thermal bonding property and crimpability. CONSTITUTION:A low melting point copolyester having 80-170 deg.C melting point is used as a sheath part or an island part and a polyester obtained by joining PET and a copolymer having melting point 20 deg.C higher than the copolyester and different in thermal shrinkage in a weight ratio of (40/60) to (60/40) is used as a core part or sea part, and the copolyester and the polyester are conjugated so that the weight ratio of sheath part or island part/core part or sea part may be (10/90) to (30/70) to form the objective thermally bondable latent crimped conjugate yarn. In this conjugate fiber, developed crimp number in no-load heat treatment at 100 deg.C is >=40 top/25mm and a ratio Y of crimp number N before crimple developing treatment and crimp degree satisfies the formula 8 basis weight is formed using a short fiber having 20-120mm fiber length of the conjugate fiber and then subjected to relax heat treatment at 100-150 deg.C to provide the objective nonwoven fabric.
-
公开(公告)号：JPH0536526B2
公开(公告)日：1993-05-31
申请号：JP13434583
申请日：1983-07-25
Applicant: TORAY INDUSTRIES
Inventor： SAITO ISOO , FUJIOKA KOTARO , YOSHINO MASATO
-
Patent Agency Ranking
公开(公告)号：JPH03241006A
公开(公告)日：1991-10-28
申请号：JP4027790
申请日：1990-02-20
Applicant: TORAY INDUSTRIES
Inventor： SAITO ISOO , OGURA AKIRA , YOSHINO MASATO
IPC: D01F6/60
Abstract: PURPOSE:To provide the subject fiber having a specific viscosity, specific physical properties, high strength, high modulus and excellent dimensional stability under heat and useful for tire cord, transmission belt, fishing net, sewing thread, tent, tarpaulin, sling, rope, etc. CONSTITUTION:The objective fiber is a polycapramide fiber having a sulfuric acid relative viscosity etar of >=3.0 (preferably >=3.2) and the following physical properties. Strength, >=13g/d; elongation at break, >=18%; initial modulus, >=35g/d; dry heat-shrinkage, =55X10 , crystal orientation degree fc is >=0.94, the long period Dm measured in equatorial direction is 180Angstrom >=Dm>=115Angstrom , the long period De measured in meridian direction is 230Angstrom >=De>=140Angstrom , the melting point Tm measured by DSC is >=217 deg.C and the absolute value ¦delta ns-c¦ between the birefringence ns at the skin layer of each single fiber and the birefringence nc at the core part is .
-
公开(公告)号：JPH03137220A
公开(公告)日：1991-06-11
申请号：JP27422489
申请日：1989-10-20
Applicant: TORAY INDUSTRIES
Inventor： SAITO ISOO , YOSHINO MASATO , OGURA AKIRA
IPC: D01F6/62 , D01D5/092 , D01F11/16 , D02J1/22 , D06M10/00 , D06M10/02 , D06M101/00 , D06M101/16 , D06M101/30 , D06M101/32
Abstract: PURPOSE:To obtain the title fiber with both high mechanical strength and modulus, excellent in thermal dimensional stability etc., thus suitable for tire cords, transmission belts, etc., by delayed cooling of a specific polymer followed by drawing in a plasma atmosphere. CONSTITUTION:A polymer with >=90mol% of the total recurring units in the molecular chain representing polyethylene terephthalate and an intrinsic viscosity of >=0.7 is put to melt spinning followed by delayed cooling through a high temperature atmospheric zone at pref. 200-350 deg.C just under a spinneret and then solidification, in a cooling zone >=100mm in length, by spraying a gas at pref. >=120 deg.C at a velocity of 15-50m/min and then winding on a take-up roller at a speed of >=1500m/min, thus producing a medium-oriented fiber. This fiber is then drawn by a factor of 1.4-3.5 under a tension of 1.0-5.0g/de in a plasma atmosphere, thus obtaining the objective fiber.
-
公开(公告)号：JPH03137218A
公开(公告)日：1991-06-11
申请号：JP27422389
申请日：1989-10-20
Applicant: TORAY INDUSTRIES
Inventor： SAITO ISOO , YOSHINO MASATO , OGURA AKIRA
Abstract: PURPOSE:To provide the subject fiber composed of polyethylene terephthalate, having a specific fiber structure parameter, high modulus and excellent thermal dimensional stability and useful as rubber-reinforcing material such as tire cord or transmission belt or seat belt, fishing net, sewing thread, etc. CONSTITUTION:The objective fiber is composed essentially of a polyethylene terephthalate having an intrinsic viscosity [eta] of >=0.7 (preferably >=0.8) and has the following fiber structure parameters. The birefringence n of the fiber is >=160X10 (preferably 160X10 to 220X10 ), the density rho is >=1.395g/cm (preferably 1.397-1.400g/cm ), the crystal orientation degree fc is >=0.92 (preferably >=0.93), the amorphous region orientation degree fa is >=0.55 (preferably 0.55-0.70), the peak temperature of the dynamic elastic loss curve (tandeltamax) is
-
公开(公告)号：JPS63165512A
公开(公告)日：1988-07-08
申请号：JP30868386
申请日：1986-12-26
Applicant: TORAY INDUSTRIES
Inventor： YOSHINO MASATO , HONDA CHIKARA , HIROSHIGE HIDEAKI
Abstract: PURPOSE:To obtain in high productivity the titled fiber at low cost, for use in tire cords, etc., by melt spinning of a polyamide polymer with a specific relative viscosity in sulfuric acid to make a take-up in high speed followed by imparting low-viscosity lubricant to carry out stretching up to a specified stress followed by imparting high-viscosity lubricant. CONSTITUTION:A polyamide polymer with a relative viscosity in sulfuric acid >=3.0 (e.g. polyhexamethylene adipamide) is melted to deliver through a spinneret to effect solidification on cooling; the resulting yarn is imparted with a low- viscosity lubricant of =1,500m/min, stretching between the take-up roller 4 and first draw roller 6, and at a point when the stretching stress fall between 0.5 and 2.5g/d, imparting the stretched yarn with high- viscosity lubricant of >=100Cp using second-stage oiling roller 5, further stretching through second and third draw rollers 7, 8, and then winding by a winder 10 at a rate >=4,000m/min, thus obtaining the objective fiber.
-
公开(公告)号：JPS6350519A
公开(公告)日：1988-03-03
申请号：JP19330487
申请日：1987-07-31
Applicant: TORAY INDUSTRIES
Inventor： YOSHINO MASATO , HONDA CHIKARA , SAITO ISOO
Abstract: PURPOSE:To obtain the titled fibers, consisting of polyhexamethylene adipamide of specific composition and having a specific relative viscosity in sulfuric acid, having a high tenacity and remarkably improved dimensional stability and fatigue resistance as well as high modulus and low shrinkage at the same time and useful as tire cords, etc. CONSTITUTION:Nylon 66 chips are extruded through a spinneret 1 with an extruder type spinning machine, etc., to give a yarn (Y), which is then passed through a heating cylinder 3 and cooling device 4, oiled with an oiling device 5, taken off with a take-off roll 6 and then drawn with draw rolls 7 to afford the aimed fibers, consisting of a polymer with >=95mol% repeating structural units of hexamethylene adipamide and >=2.8 relative viscosity in sulfuric acid and having >=7.5g/d strength (T/D), an elongation (%) of 30>=F>=12, >=28g/d initial modulus (Mi), =0.92 crystal orientation degree (fc),
-
-
-
-
-
-
-
-
-
Search Results
31
records
(took 0.029 seconds)
