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公开(公告)号：DE60228656D1
公开(公告)日：2008-10-16
申请号：DE60228656
申请日：2002-07-29
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , SAKAI TAKAAKI , MAEDA YUHEI
Abstract: A poly(lactic acid) fiber has a strength at 90 DEG C of equal to or more than 0.8 cN/dtex and exhibits significantly satisfactory mechanical properties at high temperatures as compared with conventional poly(lactic acid) fibers.
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公开(公告)号：JP2003105645A
公开(公告)日：2003-04-09
申请号：JP2001302704
申请日：2001-09-28
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , MAEDA YUHEI , SAKAI TAKAAKI
Abstract: PROBLEM TO BE SOLVED: To provide a new polylactic acid crimped yarn having excellent high temperature dynamic characteristics. SOLUTION: This polylactic acid crimped yarn which is formed from >=50 wt.% of lactic acid monomer, has excellent high temperature dynamic characteristics, and simultaneously satisfies the following characteristics. Strength at 90 deg.C >=0.5 cN/dtex. CR>=10%.
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公开(公告)号：JP2000248425A
公开(公告)日：2000-09-12
申请号：JP4788699
申请日：1999-02-25
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , SAKAI TAKAAKI , SATO MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To provide a highly shrinkable polyester fiber having slight yarn unevenness for forming a cloth having excellent bulging, softness and repulsive feeling and excellent in quality without dyeing unevenness. SOLUTION: This highly shrinkable polyester fiber having slight yarn unevenness simultaneously satisfies following properties. (1) boiling water shrinkage SHW=15-35%; (2) SHW>=dry heat shrinkage SHD; (3) birefringence Δ>=0.130; (4) crystallinity χ=10-20%; (5) standard deviation of SHW scattering FTA
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公开(公告)号：JP2001214335A
公开(公告)日：2001-08-07
申请号：JP2000024296
申请日：2000-02-01
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , SAKAI TAKAAKI , MURAKAMI KAKUJI
Abstract: PROBLEM TO BE SOLVED: To provide a low-shrinkage polyester yarn for the production of a cloth having excellent processability in advanced processing, bulkiness, softness and resilience as well as excellent beautifulness of the cloth surface and wearing comfortability such as light weight and heat-retaining property. SOLUTION: The objective low-shrinkage polyester slub yarn is a conjugated sheath-core fiber containing a polymer (A) composed essentially of a polyester at the sheath part and a polymer (B) having a temperature dependency of the tensile viscosity higher than that of the polymer (A) at the core part, having thick parts and thin parts continuously arranged in longitudinal direction, having partial hollow part formed by the breakage of the polymer (B) of the core part and satisfying the following requirements. Boiling water shrinkage is 4-10%, dry-heat shrinkage after the boiling water shrinking is =2.5%.
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公开(公告)号：JP2000273727A
公开(公告)日：2000-10-03
申请号：JP7721899
申请日：1999-03-23
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , SAKAI TAKAAKI , SATO MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To obtain a false twist yarn excellent in stretching property capable of improving rough/firm feeling and quality of textile by blending the predetermined amount of polyethylene terephthalate to polybutylene terephthalate, spinning under a specific condition and applying a false twist processing. SOLUTION: The false twist yarn of the blended polyester having torque twisting constant =103 in the molten state, spinning in the winding speed >=2500 m/min, applying the false twisting process setting the heater temperature at 180-210 deg.C. A stretch woven fabric is preferably obtained by shrinking a fabric comprising twistless yarn or the false twist yarn of the blended polyester applied a real twisting process having real twist constant =70 deg.C.
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Patent Agency Ranking
公开(公告)号：JP2001279527A
公开(公告)日：2001-10-10
申请号：JP2000088648
申请日：2000-03-28
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , SAKAI TAKAAKI , MURAKAMI KAKUJI
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a combined filament yarn, having a high spinning stability, capable of forming a fabric low in cost and excellent in texture in the method for producing a spun combined filament yarn using a single polyester. SOLUTION: This method for producing a combined filament yarn is characterized by including a group having 3,000-9,500 spinning draft and a group having 20-500 spinning draft in carrying out melt spinning of two or more kinds of yarns from the same spinneret by using a single polyester having 0.68-2.00 intrinsic viscosity [η].
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公开(公告)号：JP2001200442A
公开(公告)日：2001-07-27
申请号：JP2000005474
申请日：2000-01-14
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , SAKAI TAKAAKI , MURAKAMI KAKUJI
Abstract: PROBLEM TO BE SOLVED: To provide a method for easily producing in high productivity the subject combined filament yarn intended for giving fabrics of excellent touch without the need of using any self-elongative filament yarn. SOLUTION: The subject combined filament yarn comprises high-elongation yarn and low-elongation yarn; wherein the high-elongation yarn consists of a sheath/core conjugate yarn composed of a polyester as the sheath and, as the core, a polymer higher in the temperature dependency of tensile viscosity than the above polyester, while the low-elongation yarn consists singly of a polyester yarn. This method for producing the above combined filament yarn comprises the following process: at least two kinds of polymers corresponding to the high-elongation yarn and the low-elongation yarn are issued (melt-spun) from an identical spinneret into an indrawn heteroelongative combined filament yarn finished with >=0.1 wt.% of a non-polyether-based lubricant, which is subsequently drawn at a draw ratio 0.40-0.50 time the breaking draw ratio of the filament yarn with the highest elongation at 90-110 deg.C followed by heat-setting the thus drawn filament yarn at 110-130 deg.C.
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8.发明专利
公开(公告)号：JP2001172836A
公开(公告)日：2001-06-26
申请号：JP36015299
申请日：1999-12-20
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , SAKAI TAKAAKI , MURAKAMI KAKUJI
Abstract: PROBLEM TO BE SOLVED: To provide a low-shrinkage polyester yarn for forming a fabric excellent in step through property in a high-order processing step, excellent in soft feeling, bulging feeling and repulsive feeling and also excellent in comfortability to wearing such as lightweight property and heat-insulating property. SOLUTION: This low-shrinkage polyester yarn has the following characteristics. Shrinkage factor in boil water: 4-10%; dry heat shrinkage factor after shrinkage in boil water:
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公开(公告)号：JP2000328385A
公开(公告)日：2000-11-28
申请号：JP13020099
申请日：1999-05-11
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , SAKAI TAKAAKI , SATO MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a low shrinkage yarn capable of solving various problems generated in a relaxed heat-treatment and constant length heat-treatment associated with the production of the low shrinkage yarn, showing a higher productivity at a low cost and excellent in quality such as an irregularity in dyeing. SOLUTION: This method for producing a low shrinkage yarn in stretching and heat-setting a polyester un-stretched yarn having 15-85% structure integrity parameter (ε2.0), is characterized by setting a natural drawing ratio(NDR)×0.7-0.85 stretching ratio, 85-110 deg.C stretching temperature, 110-145 deg.C heat setting temperature and >=300 m/min stretching speed and performing a heat setting with a hot roller.
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公开(公告)号：JP2001271239A
公开(公告)日：2001-10-02
申请号：JP2000075794
申请日：2000-03-17
Applicant: TORAY INDUSTRIES
Inventor： OCHI TAKASHI , SAKAI TAKAAKI , MURAKAMI KAKUJI
Abstract: PROBLEM TO BE SOLVED: To obtain a combined filament yarn with a difference in shrinkage for forming a fabric excellent in process passableness in a high-order processing process, touch feeling and further lightweight properties and rich in surface change and to provide a method for producing the combined filament yarn. SOLUTION: This combined filament yarn with the difference in shrinkage comprises a low shrinkable yarn which is a special core-sheath conjugate yarn and a highly shrinkable yarn that is a polyester single yarn and the low shrinkable yarn has a partial hollow part formed by breaking a polymer arranged in the core part and further the following characteristics. The combined filament yarn with the difference in shrinkage has >=2.0% of U% unevenness of thickness in the fiber longitudinal direction. 4-10% shrinkage percentage in boiling water, =3.0% U%.
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