BASIC DYE-DYEABLE COPOLYESTER FIBER

    公开(公告)号:JP2001254228A

    公开(公告)日:2001-09-21

    申请号:JP2000061525

    申请日:2000-03-07

    Abstract: PROBLEM TO BE SOLVED: To obtain a polyester fiber which has high strength and a high elastic recovery (stretching property), having excellent dyeability with basic dyes, is suitable for sports wears, inner wears and the like, and is further suitable for uses blended or combined with other fibers. SOLUTION: This basic dye-dyeable copolyester fiber comprises a copolyester containing propylene terephthalate units as main constituting units and copolymerized with a basic dye-dyeing site component and at least one compound selected from the group consisting of aromatic dicarboxylic acid, aliphatic dicarboxylic acid and salicyclic dicarboxylic acid components, and has a Young's modulus of =80% on an elongation of 10%.

    HEAT BONDING FIBER AND CUSHIONING MATERIAL

    公开(公告)号:JP2001073228A

    公开(公告)日:2001-03-21

    申请号:JP24722899

    申请日:1999-09-01

    Abstract: PROBLEM TO BE SOLVED: To obtain a heat bonding fiber excellent in high-temperature resistance to permanent set in fatigue and comfortableness and useful for a cushioning material, and the like, by exposing a polymer having a prescribed value or above of the glass transition temperature and the crystal melting point within a prescribed range to a part of the fiber surface. SOLUTION: This heat bonding fiber is obtained by exposing a polymer having >=50 deg.C, preferably >=60 deg.C glass transition temperature and 100-200 deg.C crystal melting point such as a copolyester to a part, e.g. 10-100% of the fiber surface. A base material fiber having >=75 deg.C glass transition temperature such as polyethylene terephthalate or polyethylene naphthalate is preferably joined with preferably 10-40 wt.% (in a cushioning material) of the heat bonding fiber to produce the cushioning material. The resistance to permanent set in fatigue of the cushioning material converted into an integral structure by thermoforming at 70 deg.C is preferably >=70%.

    BASIC DYE-DYEABLE POLYESTER FIBER
    65.
    发明专利

    公开(公告)号:JP2001020137A

    公开(公告)日:2001-01-23

    申请号:JP19283399

    申请日:1999-07-07

    Abstract: PROBLEM TO BE SOLVED: To obtain a basic dye-dyeable polyester fiber which has a high strength, a stretching property, and excellent dyeability with basic dyes and disperse dyes and is suitable for sport wears, by processing a specific polyester into the fiber having a prescribed Young's modulus and a prescribed elongation elastic recovery. SOLUTION: This basic dye-dyeable polyester fiber comprises a polyester which contains propylene terephthalate units as main components and has been copolymerized with a basic dye-dyeable site component such as a sulfoisophthalic acid alkali metal salt (preferably in an amount of 0.01 to 10 mol.% based on the total acid components), has a Young's modulus of

    PRODUCTION OF CONJUGATE FIBER
    66.
    发明专利

    公开(公告)号:JP2000303261A

    公开(公告)日:2000-10-31

    申请号:JP11603599

    申请日:1999-04-23

    Abstract: PROBLEM TO BE SOLVED: To provide a conjugate fiber having latent crimpability, suitable for obtaining a nonwoven fabric suitable as a substrate cloth for a medical patch material, and also to provide a method for producing the same fiber. SOLUTION: In this conjugate fiber, the following two polymer components A and B are eccentrically jointed: (A) a copolyester where >=3 mol% 2,2-bis[4-(2- hydroxyethoxy)phenyl]propane is copolymerized, a number-average molecular weight is

    HEAT-ADHESIVE FIBER AND CUSHIONING MATERIAL

    公开(公告)号:JP2000220035A

    公开(公告)日:2000-08-08

    申请号:JP2160999

    申请日:1999-01-29

    Abstract: PROBLEM TO BE SOLVED: To obtain heat-adhesive fibers suitable for cushioning materials, etc., having resistance to loss of resilience due to high temperature exhausting property and comfortableness by exposing an aliphatic polyester having a prescribed range of melting points at a part of the surface of fibers. SOLUTION: This heat-adhesive fiber is composed of an aliphatic polyester such as a polyester comprising L-lactic acid having 130-200 deg.C melting point as a main component and exposed on at least a part of the fiber surface and has

    WADDING MEMBER
    68.
    发明专利

    公开(公告)号:JPH11207057A

    公开(公告)日:1999-08-03

    申请号:JP1544098

    申请日:1998-01-28

    Abstract: PROBLEM TO BE SOLVED: To improve bulkiness like feather, the durability of bulk, heat insulation, etc., by constituting a wadding material to use for bedding, etc., of a core material formed to be stitch structure by core material fibers and wool material fibers knitted to the stitch of the core material and forming the wool material fibers to be fibers of S-shaped cross sections. SOLUTION: The wadding material is formed by knitting the core material 3 formed to be the stitch structure by the core material fibers 1 and the wool material fibers 2 knitted into chain-knitted structures to be the stitch structure of this core material 3. As the fibers 2 are knitted into the stitch structure of the core materials 3 at this time, wool material of the fibers 2 do not come off easily. Then, the number of the groups of the fibers 2 at one stitch string of these fibers 1 is the string of one group but is not limited in particular. In addition, the length of the longitudinal direction of the material 3 (the continuing direction of stitches) is desirably 5 to 100 mm and as the fibers 2, constituting fibers include fibers of S-shaped cross sections and the aspect ratio (a/b) of the S-shaped cross section is set to be in the range of 0.2 to 4.5.

    POLYESTER PILE FABRIC
    69.
    发明专利

    公开(公告)号:JPH11158753A

    公开(公告)日:1999-06-15

    申请号:JP32600497

    申请日:1997-11-27

    Abstract: PROBLEM TO BE SOLVED: To obtain a polyester pile fabric with each specific fiber A, fiber B and fiber C in the pile portion in specified proportions, thereby having soft touch in solid-colored form, excellent in pile standing, covering effect and print color developability, and useful for automotive internal trimming or the like. SOLUTION: This polyester pile fabric is so designed that the pile portion provided with colored print includes >=20 wt.% of fiber A with S-shaped section containing >=1.5 wt.% of a delustering agent, >=20 wt.% of fiber B with S-shaped section containing =20 wt.% of cationic dye-dyeable polyester fiber C; wherein it is preferable that the longitudinal/ transverse length ratio a/b for the fiber with S-shaped cross section is 0.5-3.5, and the single fiber fineness of the pile portion constituent fibers is 1.5-6 denier.

    MODIFIED POLYESTER FIBER AND ITS PRODUCTION

    公开(公告)号:JPH1136137A

    公开(公告)日:1999-02-09

    申请号:JP18990897

    申请日:1997-07-15

    Abstract: PROBLEM TO BE SOLVED: To obtain a modified polyester fiber having good dyeability and wool- like softness by spinning a modified polyester copolymerized with an isophthalic acid having a metal sulfonate group or further with a polyalkylene glycol, under a specific spinning condition. SOLUTION: The objective modified polyester fiber free from constant-stress elongation region on a stress-strain curve and having a breaking extension of 70-150%, a birefringence of 0.02-0.06, a tenacity of =5,000 and a spinning speed of

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