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公开(公告)号：JPH10204721A
公开(公告)日：1998-08-04
申请号：JP502197
申请日：1997-01-14
Applicant: TORAY INDUSTRIES
Inventor： KONNO YOSHIHIRO , AONO SHOJI , HIRAI SATOSHI
Abstract: PROBLEM TO BE SOLVED: To obtain the subject staple capable of providing a spun textile having not only high lightfastness but also bulking feeling, soft feeling and rebound feeling by heat treating a drawn fiber comprising a specific copolyester under a specified condition. SOLUTION: The objective staple fiber is obtained by heat-treating a drawn fiber comprising a copolyester containing isophthalic acid and 2,2-bis 4-(2- hydroxyethoxy)phenyl}propane as copolymerizing components, simultaneously satisfying the formula I to III [P(a) is a molar fraction (%) of the isophthalic acid in the whole acid components; P(b) is the molar fraction (%) of the 2,2- bis 4-(2-hydroxyethoxy)phenyl}propane in the whole glycol components] and having >=0.52 intrinsic viscosity by controlling the condition so that the initial water content in a heat-treating zone may be >=5wt.%, a relaxation ratio may be (-2) to 5%, and a treating temperature may be 110-180 deg.C, to form the objective staple having 3% larger than that in 160 deg.C dry air after treating by the boiling water and
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公开(公告)号：JPH10130955A
公开(公告)日：1998-05-19
申请号：JP29048396
申请日：1996-10-31
Applicant: TORAY INDUSTRIES
Inventor： HIRAI SATOSHI , AONO SHOJI , KONNO YOSHIHIRO
Abstract: PROBLEM TO BE SOLVED: To obtain a highly shrinkable polyester staple fiber, excellent in rich fullness, soft touch feeling and color fastness to light and useful for a knitted, a woven fabric, etc., by providing a shrinking stress with plural inflection points within a specific temperature range. SOLUTION: This highly shrinkable polyester staple fiber has >=200mg/d maximum shrinking stress and 125-175 deg.C peak temperature of maximum shrinking stress and the shrinking stress has three inflection points within the range of 50-190 deg.C. The polyester is a copolyester prepared by copolymerizing isophthalic acid and 2,2-bis 4-(2-hydroxyethoxy)phenyl}propane as the third component. The staple fiber preferably has
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公开(公告)号：JPH09228155A
公开(公告)日：1997-09-02
申请号：JP3045196
申请日：1996-02-19
Applicant: TORAY INDUSTRIES
Inventor： HIRAI SATOSHI , KONNO YOSHIHIRO
Abstract: PROBLEM TO BE SOLVED: To provide polyamide conjugate staple fibers having excellent commercial value, hygroscopicity and spinnability without flowing out of a core component by cracking of a sheath component in a higher ordered process. SOLUTION: This core-sheath type conjugate staple fiber is composed of a polyester copolymer 1 copolymerizing 45-95wt.% based on total polymer weight of a hydrophilic compound (A) and containing 0.5-15mol% based on the acid component in the total polymer of a crosslinking agent (B) and having >=12% moisture absorption-releasing parameter (ΔMR) as a core component and a polyamide as a sheath component and at a conjugating weight percentage of (core component/sheath component) of (3/97)-(35/65), and has 3-200mm fiber length and 5-35% crimp degree.
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公开(公告)号：JPH09220147A
公开(公告)日：1997-08-26
申请号：JP3235596
申请日：1996-02-20
Applicant: TORAY INDUSTRIES
Inventor： FUJIMOTO MASUKI , SUGINO TOMOSHIGE , KONNO YOSHIHIRO
Abstract: PROBLEM TO BE SOLVED: To provide bedding covers to give comfortable use feeling, by composing the bedding covers by cloth containing polyester based fiber with moisture absorptivity and antistatic properties and making the of the cloth be a specific value. SOLUTION: These bedding covers are composed of cloth mainly consisting of polyester based fiber, are excellent in moisture absorptivity and antistatic properties and give comfortable use feeling by making its moisture absorption and desorption parameter ▵MR be higher than 1%. If the moisture absorption and desorption parameter ▵MR is lower than 1%, moisture absorption and desorption are insufficient in using the bedding covers to result in that comfortable use feeling cannot be obtained. Friction electrification voltage of cloth composing the bedding covers is to be lower than or equal to 3kV. By making the friction electrification voltage to be 3kV, discomfort feeling by dust adhesion by static electricity and electric discharge can be avoided. Fiber containing a mixture of polyetherester acid and fiber composing resin is used as the polyester based fiber with those properties.
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公开(公告)号：JPH08246245A
公开(公告)日：1996-09-24
申请号：JP4679095
申请日：1995-03-07
Applicant: TORAY INDUSTRIES
Inventor： KONNO YOSHIHIRO , NAGAHAMA AKIHIKO , HIRAI SATOSHI
IPC: D01F8/14 , D01D5/26 , D01D5/34 , D01F8/12 , D04H1/4382
Abstract: PURPOSE: To obtain the subject short fiber capable of improving the shrinkage characteristics and dyeability of a nonwoven fabric made of the fiber, enabling the increase of productivity in processing of the nonwoven fabric and useful for a nonwoven fabric for a core cloth, etc., by using a copolymer polyester as the core component and nylon 6 as the sheath component and specifying the weight ratio of the core part to the sheath part. CONSTITUTION: This core-sheath conjugate short fiber for producing a nonwoven fabric is obtained by using a copolymer polyester, in which >=90mol% recurring units are polyester units, as a core component and nylon 6 as a sheath component and specifying the weight ratio of the core part/the sheath part at (10-60)/(90-40). The obtained short fiber is excellent in vividness after dying and also in passage through a carding engine, etc.
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Patent Agency Ranking
公开(公告)号：JPH0770827A
公开(公告)日：1995-03-14
申请号：JP10290694
申请日：1994-05-17
Applicant: TORAY INDUSTRIES
Inventor： SATO MASAYUKI , KONNO YOSHIHIRO , TAKAHASHI HIROSHI
IPC: D01F6/84 , D01F8/14 , D06M11/00 , D06M11/38 , D06M101/00 , D06M101/16 , D06M101/30 , D06M101/32
Abstract: PURPOSE:To provide the conjugate fiber excellent in conjugate form stability, process passability and practical characteristics and useful for producing a new touch web having good tension, good stiffness, soft touch and good bulky touch. CONSTITUTION:A three component conjugate fiber in which a core component A, an island component B and a sea component C comprise three mutually different polyesters, respectively, the island component B being scattered so as to surround the core component A and dispersed without being unevenly distributed in the sea component C, is characterized by specifying the ratio of the melt viscosities of the core component A and the island component B to the melt-viscosity of the sea component C and the ratio of the strength of the fiber after the dissolution removal of the sea component to the strength of the raw fiber.
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公开(公告)号：JPH06235115A
公开(公告)日：1994-08-23
申请号：JP2131593
申请日：1993-02-09
Applicant: TORAY INDUSTRIES
Inventor： KONNO YOSHIHIRO , TAKAHASHI HIROSHI
Abstract: PURPOSE:To enable to improve coloration of a polymer comprising a pedal-like cross-sectional shape and control the diameter of a core part on the spinning of the bicomponent conjugate fiber by dissolving off the wedge-shaped cross-sectional tip part of the other polymer. CONSTITUTION:The spinneret for spinning the bicomponent conjugate fiber is characterized by disposing through holes 4, 5 for mutually independently feeding a polymer A distributed into two portions and a through hole 6 for feeding a polymer B in an upper spinneret plate 1, disposing through holes 7, 9 communicated with the through holes, 4, 6 of the upper spinneret plate 1 and at least three through holes 8 surrounding the through hole 7 and communicated with the through hole 5 in an intermediate spinneret plate 2, and disposing an extrusion hole 10 communicated with the through hole 7 of the intermediate spinneret plate 2, plural passages 11 radially extended from an extrusion hole 10 and communicated with the through holes 8 of the intermediate holes 8, and plural passages 12 radially extended from the extrusion hole 10, communication with the through hole 9 of the intermediate spinneret plate 2 and arranged so as to alternately place between the passages 11.
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公开(公告)号：JPH06220717A
公开(公告)日：1994-08-09
申请号：JP1025393
申请日：1993-01-25
Applicant: TORAY INDUSTRIES
Inventor： SATO MASAYUKI , KONNO YOSHIHIRO , TAKAHASHI HIROSHI
Abstract: PURPOSE:To provide a method for producing thick and thin yarn having unconventional high-grade hand effects due to thick and thin parts and light and shade effects due to a difference in dyeability in which the thick/thin ratio and the thick and thin pitch can be controlled. CONSTITUTION:A polyester is melt spun. In the process, liquid droplets having 30-250mum diameter are blown at >=1.0m/sec flow velocity on discharged yarn 3 running in an area (A) within 50cm distance from the surface of a spinneret 1 thereunder.
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公开(公告)号：JPH05171507A
公开(公告)日：1993-07-09
申请号：JP34449491
申请日：1991-12-26
Applicant: TORAY INDUSTRIES
Inventor： MOCHIZUKI KATSUHIKO , KONNO YOSHIHIRO , TAKAHASHI HIROSHI
Abstract: PURPOSE:To provide the conjugate fiber comprising inner and outer layers, having excellent characteristics consisting of excellent dry touch, tension, stiffness and color-developing property and most suitable as a refreshing feeling raw material for clothes. CONSTITUTION:The conjugate fiber comprising an inner layer and an outer layer and having a follow part is characterized in that >=0.1wt.% of fine particles having an average primary particle diameter of >=200mum are contained in the inner layer and/or the outer layer, that the dissolution rate of the outer layer component in a solvent is >=3 times that of the inner layer component, that the external shape of the inner layer in the cross section of the fiber has a polyangular cross section ranging from a triangular cross section to a hexagonal cross section and having extremely sharp tops and highly straight linear sides between the adjacent tops.
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公开(公告)号：JPH04308215A
公开(公告)日：1992-10-30
申请号：JP7163191
申请日：1991-04-04
Applicant: TORAY INDUSTRIES
Inventor： KONNO YOSHIHIRO , MOCHIZUKI KATSUHIKO , TAKAHASHI HIROSHI
Abstract: PURPOSE:To produce a hollow inner and outer-layered conjugated fiber giving a multi-angular hollow fiber having highly straight sides and sharp tip edges by eluting the outer layer of the conjugate fiber. CONSTITUTION:A method for producing a hollow inner and outer-layered conjugate fiber comprising an inner layer of a slightly soluble polymer having a high melting viscosity and an outer layer of an easily soluble polymer having a low melting viscosity by the use of a nozzle divided into three-six slits. The method permits to stably produce the hollow inner and outer-layered conjugate fiber in good reproducibility, the conjugate fiber giving a multi-angular hollow fiber having highly straight sides and tip edges having extremely small curvature angles after the outer layer is eluted. The conjugate fibers thereby give a web favorable in dry touch, stiffness, tension and lightweight feeling.
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