公开(公告)号：AU3405389A

公开(公告)日：1989-11-09

申请号：AU3405389

申请日：1989-05-04

Applicant: TORAY INDUSTRIES

Inventor： SHINDO TAKESHI ,  SANO MASUKI ,  OKA KEN-ICHIRO

IPC: C08G63/78 ,  D01D5/084 ,  D01F6/62 ,  D02G3/48 ,  D01F6/84 ,  D01F8/14 ,  D02G3/26

Abstract: Disclosed is a polyethylene terephthalate untwisted multifilament which satisfies the following requirements (A), (B), (C) and (D); (A) the intrinsic viscosity [IV] is 0.97 to 1.15; (B) the amorphous orientation function [fa] is not larger than 0.55; (C) the tenacity [T] (g/d), the shrinkage [ DELTA S] (%) as measured after standing in dry air at 150 DEG C for 30 minutes, the medium elongation [ME] (%) under a load of 4.5 g/d, and the dimensional stability index [Y] expressed by the formula: Y= ME + DELTA S + 1.32 are within ranges defined by the following formulae (a), (b), (c), (d) and (e): and and (d) the elongation at break is at least 11% and the product of the tenacity and elongation, which is defined by: [tenacity (g/d) at break] x 2ROOT elongation (%) at break, is 30 to 36.

公开(公告)号：CA1327685C

公开(公告)日：1994-03-15

申请号：CA598456

申请日：1989-05-02

Applicant: TORAY INDUSTRIES

Inventor： SHINDO TAKESHI ,  SANO MASUKI ,  OKA KEN-ICHIRO

IPC: C08G63/78 ,  D01D5/084 ,  D01F6/62 ,  D02G3/48

Abstract: POLYESTER FIBER FOR INDUSTRIAL USE AND PROCESS FOR PREPARATION THEREOF Disclosed is a polyethylene terephthalate untwisted multifilament which satisfies the following requirements (A), (B), (C) and (D); (A) the intrinsic viscosity ¢IV! is 0.97 to 1.15; (B) the amorphous orientation function ¢fa! is not larger than 0.55; (C) the tenacity ¢T! (g/d), the shrinkage ¢.DELTA.S! (%) as measured after standing in dry air at 150.degree.C for 30 minutes, the medium elongation ¢ME! (%) under a load of 4.5 g/d, and the dimensional stability index ¢y! expressed by the formula: Y= ME0-81 + .DELTA.S + 1.32 are within ranges defined by the following formulae (a), (b), (c), (d) and (e): 0.33Y + 5.55 ? T ? 0.33Y + 6.50 (a), 8.0 ? T ? 9.5 (b), 8.5 ? Y ? 10.5 (c), 5 ? ME ? 10 (d), and 2 ? .DELTA.S ? 6 (e); and (d) the elongation at break is at least 11% and the product of the tenacity and elongation, which is defined by: , is 30 to 36.

公开(公告)号：AU629546B2

公开(公告)日：1992-10-08

申请号：AU3405389

申请日：1989-05-04

Applicant: TORAY INDUSTRIES

Inventor： SHINDO TAKESHI ,  SANO MASUKI ,  OKA KEN-ICHIRO

IPC: C08G63/78 ,  D01D5/084 ,  D01F6/62 ,  D02G3/48 ,  D01F6/84 ,  D01F8/14 ,  D02G3/26

Abstract: Disclosed is a polyethylene terephthalate untwisted multifilament which satisfies the following requirements (A), (B), (C) and (D); (A) the intrinsic viscosity [IV] is 0.97 to 1.15; (B) the amorphous orientation function [fa] is not larger than 0.55; (C) the tenacity [T] (g/d), the shrinkage [ DELTA S] (%) as measured after standing in dry air at 150 DEG C for 30 minutes, the medium elongation [ME] (%) under a load of 4.5 g/d, and the dimensional stability index [Y] expressed by the formula: Y= ME + DELTA S + 1.32 are within ranges defined by the following formulae (a), (b), (c), (d) and (e): and and (d) the elongation at break is at least 11% and the product of the tenacity and elongation, which is defined by: [tenacity (g/d) at break] x 2ROOT elongation (%) at break, is 30 to 36.

公开(公告)号：ZA8903434B

公开(公告)日：1990-01-31

申请号：ZA8903434

申请日：1989-05-09

Applicant: TORAY INDUSTRIES

Inventor： SHINDO TAKESHI ,  TAKESHI SHINDO ,  SANO MASUKI ,  MASUKI SANO ,  OKA KEN-ICHIRO ,  KEN-ICHIRO OKA

IPC: C08G63/78 ,  D01D5/084 ,  D01F6/62 ,  D02G3/48 ,  D01F

CPC classification number: D01D5/084 ,  D01F6/62 ,  Y10S57/902 ,  Y10T428/2913 ,  Y10T428/2929 ,  Y10T428/2933 ,  Y10T428/2969

公开(公告)号：ZA893434B

公开(公告)日：1990-01-31

申请号：ZA893434

申请日：1989-05-09

Applicant: TORAY INDUSTRIES

Inventor： KEN-ICHIRO OKA ,  SHINDO TAKESHI ,  TAKESHI SHINDO ,  SANO MASUKI ,  MASUKI SANO ,  OKA KEN-ICHIRO

IPC: C08G63/78 ,  D01D5/084 ,  D01F6/62 ,  D02G3/48 ,  D01F

Abstract: Disclosed is a polyethylene terephthalate untwisted multifilament which satisfies the following requirements (A), (B), (C) and (D); (A) the intrinsic viscosity [IV] is 0.97 to 1.15; (B) the amorphous orientation function [fa] is not larger than 0.55; (C) the tenacity [T] (g/d), the shrinkage [ DELTA S] (%) as measured after standing in dry air at 150 DEG C for 30 minutes, the medium elongation [ME] (%) under a load of 4.5 g/d, and the dimensional stability index [Y] expressed by the formula: Y= ME + DELTA S + 1.32 are within ranges defined by the following formulae (a), (b), (c), (d) and (e): and and (d) the elongation at break is at least 11% and the product of the tenacity and elongation, which is defined by: [tenacity (g/d) at break] x 2ROOT elongation (%) at break, is 30 to 36.

公开(公告)号：DE2716106A1

公开(公告)日：1977-10-27

申请号：DE2716106

申请日：1977-04-12

Applicant: TORAY INDUSTRIES

Inventor： OTAKI YUKIO ,  OKA KEN-ICHIRO ,  KOIDE KAZUYOSHI ,  NAKAGAWA KIYOSHI

IPC: D02G1/02 ,  D02G1/08

Abstract: This invention relates to a method and apparatus for imparting false twists to two yarns simultaneously. The significance of the invention resides in that an industrially utilizable method for false twisting yarns by frictional contact of two yarns with 4 rotating frictional discs has been provided. The apparatus of the present invention for practising the false twisting method is characterized in that the angle of contact of yarns with the frictional discs is maintained within a specific range and the frictional discs are attached to four shafts in specific order at specific heights. Various processes for preparing a variety of false twist yarns by utilizing the false twisting method and apparatus of the present invention have been established.