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51. 发明专利

JPH0813247A METHOD FOR CARRYING OUT MELT SPINNING OF POLYESTER 失效
公开(公告)号：JPH0813247A
公开(公告)日：1996-01-16
申请号：JP15228194
申请日：1994-07-04
申请人： TEIJIN LTD
发明人： YOSHIMURA MITSUE , IOHARA KOICHI , KURODA TOSHIMASA
IPC分类号： D01F6/92 , D01D1/02 , D01D5/28 , D01F6/62
摘要： PURPOSE:To provide a method for carrying out melt spinning of a polyester, capable of recovering a polyester sheet used as a magnetic recording unit such as a floppy disk and regenerating a polyester fiber. CONSTITUTION:In carrying out melt-spinning of a polyester waste containing 0.5-2.0wt.% iron oxide based on the weight of a matrix polymer to regenerate a polyester fiber, a thickener in an amount of >=0.2 pts.wt. based on total weight of the polyester is added to the polyester waste and the mixture is melt-spun.

52. 发明专利

JPH083819A MANUFACTURE OF POLYESTER FIBER 失效
公开(公告)号：JPH083819A
公开(公告)日：1996-01-09
申请号：JP13022294
申请日：1994-06-13
申请人： TEIJIN LTD
发明人： YOSHIMURA MITSUE , MINAMISONO KUNIO , IOHARA KOICHI , KURODA TOSHIMASA
IPC分类号： D01F6/62 , D01F6/92 , D01F8/14 , D02G3/04
摘要： PURPOSE:To prevent the adhesion of foreign materials on the surface of a spinneret and stabilize a spinning process in melt spinning of polyester filament composed of the mixture of polyethylene terephthalate and polybutylene terephthalate. CONSTITUTION:A polyester mixture obtained by mixing (A) a polyester resin having butylene terephthalate as a main recurring unit and obtained by lowering catalyst activity by treating the product polymerized in the presence of a titanate catalyst with a phosphoric acid-based stabilizer and (B) a polyester resin having ethylene terephthalate as a main recurring unit and obtained by lowering the catalyst activity by treating the product polymerized in the presence of germanium oxide catalyst with water, in the weight ratio of (A):(B)=5:95 to 95:5 is subjected to melt spinning.

53. 发明专利

JPH07243144A METHOD FOR PRODUCING POLYESTER COMBINED FILAMENT YARN 失效
公开(公告)号：JPH07243144A
公开(公告)日：1995-09-19
申请号：JP3362094
申请日：1994-03-03
申请人： TEIJIN LTD
发明人： AISAKA HIROYUKI , IOHARA KOICHI
IPC分类号： D01F6/62 , D01D5/084 , D01D5/096 , D01D10/02 , D02J1/00 , D02J1/22
摘要： PURPOSE:To provide polyester combined filament yarn having excellent bulkiness and wax touch and having an unique two tone dyeability difference at a high rate by utilizing the same heaters. CONSTITUTION:When polyester filament groups 2A, 2B melt-extruded from spinnerets 1A, 1B are cooled and solidified in a cooling cylinder 3 and subsequently guided into a heater 5, the filament group 2A is subjected to the adhesion of an aqueous oil emulsion through a metering oil device 4, passed through a heating cylinder 6A in the collected state, and subsequently guided out from an opening 7A on the exit side. The other filament group 2B as such is thermally treated in a heating cylinder 6B in a non-collected state and subsequently guided out through an opening 7B having a smaller diameter than that of the opening 7A on the exit side. While both the filament groups 2A, 2B are taken off at a rate of 3000-5500m/min, the other filament group 2B is guided into an interlacing device 10 through a metering oil device 8 to double and blend both the filament groups with each other. The doubled and combined filaments are, if necessary, again interlaced through taking-off rollers 11, 11, and subsequently wound on a winding machine 13.

54. 发明专利

JPH05230713A SPINNING OF READILY DYEABLE POLYESTER FIBER 失效
公开(公告)号：JPH05230713A
公开(公告)日：1993-09-07
申请号：JP3351892
申请日：1992-02-20
申请人： TEIJIN LTD
发明人： IOHARA KOICHI , AISAKA HIROYUKI , NAGAI HIROYUKI
IPC分类号： D01F6/62 , D01F6/84
摘要： PURPOSE:To produce the subject fiber with an excellent spinnability by spinning a copolyester containing a phosphonium sulfonate as a copolymer unit in a specified condition. CONSTITUTION:A phosphonium sulfonate (e.g. tetramethylphosphonium 3,5- dicarbomethoxybenzenesulfonate) of the formula (A is an aromatic group or an aliphatic group. X1 and X2 are independently an ester-forming functional group; n is a positive integer; R1 to R4 are independently H, an alkyl, an aryl or a hydroxyalkyl and the total molecular weight of R1 to R4 is >=60) is copolymerized into a polyester polymer chain. The resultant copolyester is subsequently subjected to melt spinning at 3500 to 8000m/min drawing rate and >=700/M [M is the ratio (mol%) of the copolymerized phosphonium sulfonate based on the whole acid components] draft ratio.

55. 发明专利

JPH05125609A SPINNERET 失效
公开(公告)号：JPH05125609A
公开(公告)日：1993-05-21
申请号：JP9531692
申请日：1992-04-15
申请人： TEIJIN LTD
发明人： IOHARA KOICHI , NAGAI HIROYUKI
IPC分类号： D01D4/02
摘要： PURPOSE:To provide a spinneret, a multihole spinneret having a specified number of specifically arranged delivery holes, useful for fine multifilament yarns, giving high efficiency, capable of giving high-quality products in a stable manner smoothly. CONSTITUTION:The objective spinneret where >=90 delivery holes 11 arranged in a square lattice form as a whole [corresponding four delivery holes 11 adjacent to one another form a square lattice at each interval of p, and these lattices further form a larger square lattice at each interval of q (q>=2.5p), being arranged in a double square lattice form.]. It is preferable that p be 1.0-3.0mm with (q-p) >=2.5mm.

56. 发明专利

JPH05117969A STOCK FILAMENT YARN FOR STRETCH BREAKING 失效
公开(公告)号：JPH05117969A
公开(公告)日：1993-05-14
申请号：JP30117691
申请日：1991-10-22
申请人： TEIJIN LTD
发明人： MAKINO SHOJI , KUNISADA NORINOBU , IOHARA KOICHI
IPC分类号： D01G1/06 , D06M13/02 , D06M13/175 , D06M13/184 , D06M13/224 , D06M13/244 , D06M13/248 , D06M13/256 , D06M13/282 , D06M13/292 , D06M13/51 , D06M13/513
摘要： PURPOSE:To obtain the subject stock filament yarn capable of giving randomly cut single filaments by stretch breaking causing little generation of scum by applying a specific amount of a lubricant having a specific physical property to the filament yarn. CONSTITUTION:A lubricant composition exhibiting liquid state at ordinary temperature in absolute dry state, having a viscosity power of

57. 发明专利

JPH04119117A PRODUCTION OF YARN OF POLYESTER FIBER 失效
公开(公告)号：JPH04119117A
公开(公告)日：1992-04-20
申请号：JP23899390
申请日：1990-09-11
申请人： TEIJIN LTD
发明人： IOHARA KOICHI , NAGAI HIROYUKI
IPC分类号： D01F6/62
摘要： PURPOSE:To produce yarn of polyester fiber applicable even to a hard twisted field by cooling yarn discharged from a spinneret, then passing the resultant yarn through a heated zone at a prescribed temperature or above, winding the yarn around plural heated rollers, drawing the yarn, etc., and winding the drawn yarn at a high speed. CONSTITUTION:Yarn melt discharged from a spinneret is once cooled, then passed through a non-contact or/and a contact type heated zone at >=100 deg.C, subsequently wound around two heated rollers, thereby subjected to drawing or heat treatment in a relaxed state and wound at >=3000m/min, preferably >=5000m/min speed to produce the objective yarn of polyester fiber.

58. 发明专利

JPH0413445B2 失效
公开(公告)号：JPH0413445B2
公开(公告)日：1992-03-09
申请号：JP11017085
申请日：1985-05-24
申请人： TEIJIN LTD
发明人： SUZUKI MOTOYOSHI , KUNUGI KATSUO , YAMADA SETSUO , IOHARA KOICHI
IPC分类号： C08L67/00 , C08G63/00 , C08G63/68 , C08G63/688 , C08G63/91 , C08K3/00 , C08L67/02 , D01F6/62 , D01F6/92 , D06M11/00 , D06M11/38 , D06M101/00 , D06M101/16 , D06M101/30 , D06M101/32

59. 发明专利

JPH03294516A SPINNING FOR POLYESTER FIBER 失效
公开(公告)号：JPH03294516A
公开(公告)日：1991-12-25
申请号：JP9318790
申请日：1990-04-10
申请人： TEIJIN LTD
发明人： IOHARA KOICHI , NAGAI HIROYUKI
IPC分类号： D01F6/62 , D01D5/088
摘要： PURPOSE:To improve yarn tone in obtaining polyester filament yarn by very high-speed spinning or high-speed spinning of extra fine filament yarn, by dividing multifilament yarn spun from one spinneret into two or more groups, collecting and cooling by oiling in the vicinity of the spinneret and joining the filament yarns. CONSTITUTION:Polyester multifilament (preferably spun at the number of filaments >=120 filaments per spinneret and in the amount of spun

60. 发明专利

JPH0323648B2 失效
公开(公告)号：JPH0323648B2
公开(公告)日：1991-03-29
申请号：JP23954485
申请日：1985-10-28
申请人： TEIJIN LTD
发明人： SUZUKI MOTOYOSHI , KONISHI TADASHI , IOHARA KOICHI , OOWAKI SHINJI , YAMADA SETSUO
IPC分类号： C08G63/68 , C08G63/688 , D01F6/86 , D06M11/00 , D06M11/38 , D06M101/00 , D06M101/16 , D06M101/30 , D06M101/32

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