-
公开(公告)号：JPH0987951A
公开(公告)日：1997-03-31
申请号：JP24773195
申请日：1995-09-26
Applicant: TORAY INDUSTRIES
Inventor： MATSUZAKI YUKIHIRO , KITAMURA AKIHISA
Abstract: PROBLEM TO BE SOLVED: To stably and surely obtain a uniform highly dense nonwoven fabric by temperature rise of a nonwoven web until it comes to a target fiber denseness followed by needle punching. SOLUTION: A specified number of plies of nonwoven web comprising polyester fibers or nylon/polystyrene two-component-based sheath-core or sea-island type conjugate fibers are first mutually laminated and the resultant laminate is subjected to pressure treatment via a nip roll. Subsequently, the laminate is fed into a needle punching machine held in an ambient temperature- controllable housing where the laminate is subjected to needle punching treatment at a temperature not higher than the glass transition temperature of the nonwoven web constituent fibers, thus obtaining the objective nonwoven fabric having a target fiber denseness of >=0.22 (pref. >=0.23)g/cm .
-
公开(公告)号：JPH05321157A
公开(公告)日：1993-12-07
申请号：JP12072392
申请日：1992-05-13
Applicant: TORAY INDUSTRIES
Inventor： KITAMURA AKIHISA , NAKAMURA HIDEO , TANAKA MINORU , ONO TSUTOMU
Abstract: PURPOSE:To provide a leather-like sheet having soft and comfortable touch and excellent abrasion resistance, flexural resistance and color fastness to satisfy the contradictory requirements of good feeling, high strength and high color fastness. CONSTITUTION:The objective sheet is composed of three-dimensionally interlocked fiber bundles consisting of ultrafine polyamide fibers having uniform thickness of =3, crimping the drawn yarn to obtain staples having a definite fiber length, forming a nonwoven fabric from the staples, applying a polymeric elastomer to the fabric and dissolving and removing the sea component of the fiber composed of mutually arranged polymers.
-
公开(公告)号：JPH04338236A
公开(公告)日：1992-11-25
申请号：JP10753091
申请日：1991-05-13
Applicant: TORAY INDUSTRIES
Inventor： NOYORI MASARU , YOSHIOKA TOSHIO , KITAMURA AKIHISA
Abstract: PURPOSE:To obtain the fibrous adsorbent which has a large surface area, has an excellent adsorption performance, allows the selective adsorption of materials to be adsorbed, and can be easily and inexpensively produced by forming extremely fine fibers of polyester having specified or lower single yarn fineness. CONSTITUTION:Three-component conjugate fibers consisting of a sea component of polystyrene, an island-sheath component of polyester, such as polyethylene terephthalate formed by copolymn. with 5-sodium sulfoisphthalic acid, etc., and an island-core component of polyesthylene are crimped by a crimper. The sea component is then removed with an org. chlorine compd., such as trichloroethylene, by which the crimped tow of the extremely fine fibers having
-
公开(公告)号：JPH093720A
公开(公告)日：1997-01-07
申请号：JP15491295
申请日：1995-06-21
Applicant: TORAY INDUSTRIES
Inventor： MATSUMOTO KAZUHIKO , KITAMURA AKIHISA , OKUMURA YUKIO
Abstract: PURPOSE: To enable uniform drawing of a conjugated yarn while avoiding heat fusion of filaments by cooling the conjugated yarn of a sheath-core or side by side type before or on drawing. CONSTITUTION: Undrawn yarn 4 of a sheath-core or side by side type conjugated fibers are cooled, before or when they are drawn. If the conjugated fibers are cooled down by blowing cool air at about 15 deg. from a nozzle 2 to the yarn at about 600mm/min while giving a vibration to the yarn, the yarn is prevented from generating heat to cause no fusion between filaments. Thereby the drawn yarn is freed from fusion and breakage of filaments.
-
公开(公告)号：JPH0441759A
公开(公告)日：1992-02-12
申请号：JP14911490
申请日：1990-06-06
Applicant: TORAY INDUSTRIES
Inventor： TANAKA MINORU , KIMURA TATSUO , KITAMURA AKIHISA
IPC: D04H1/4382 , D04H1/46
Abstract: PURPOSE:To provide an entangled nonwoven fabric made of a conjugate fiber containing a component composed of a polyester copolymerized with 5-sodium sulfoisophthalate and a component capable of forming an ultrafine polyamide fiber, useful for synthetic leather, etc., having soft feeling and easily producible at a low cost. CONSTITUTION:The objective nonwoven fabric having a 10% modulus per unit metsuke (10% modulus/metsuke (weight of fiber, 4.3560g/m )) of cm and a strength (strength/metsuke) of >=30X10 cm is produced by using a conjugate fiber having a crimp number of 11-20/inch and composed of e.g. a sea-island conjugate fiber consisting of a sea component containing
-
Patent Agency Ranking
公开(公告)号：JP2000170027A
公开(公告)日：2000-06-20
申请号：JP34825898
申请日：1998-12-08
Applicant: TORAY INDUSTRIES
Inventor： KITAMURA AKIHISA , ONO TSUTOMU , TANABE YASUHIKO
IPC: D01D5/30
Abstract: PROBLEM TO BE SOLVED: To provide a spinneret excellent in corrosion resistance at the time of cleaning with a chemical, stable spinnability and durability and useful for producing thermoplastic resin fibers by filling a specific metal brazing filler material in gap parts formed from plates and pipes. SOLUTION: This spinneret is obtained by using a metal brazing filler material which is an alloy with
-
公开(公告)号：JPH057711A
公开(公告)日：1993-01-19
申请号：JP16471891
申请日：1991-07-04
Applicant: TORAY INDUSTRIES
Inventor： KITAMURA AKIHISA , TANAKA MINORU , NOYORI MASARU
Abstract: PURPOSE:To obtain an adsorbent which is easy to be formed, having excellent adsorbing properties and low pressure loss, and is usable for cleaing in a wide range, and to provided its manufacturing method. CONSTITUTION:A fibrous absorbent is composed of composite fibers consisting of an aromatic monovinyl-type polymer A and a thermally plastic polymer B except for polymer A, and the aromatic monovinyl-type polymer A composing the fibers has fine pores and 0.1m2/g or more of specific surface area. The manufacturing method of the fibrous adsorbent involves mixing a water-soluble polymer C with the aromatic monovinyl-type polymer A, compounding and spinning the mixed polymer with the thermally plastic polymer B except for the polymer A, and removing at least a part of the water-soluble polymer C from the obtained composite fibers.
-
公开(公告)号：JPS5812366B2
公开(公告)日：1983-03-08
申请号：JP4875980
申请日：1980-04-15
Applicant: TORAY INDUSTRIES
Inventor： FUJITA SHIGERU , KASHIWAGI MASATAKA , KITAMURA AKIHISA
IPC: D01D5/36
-
公开(公告)号：JPH08100322A
公开(公告)日：1996-04-16
申请号：JP23350594
申请日：1994-09-28
Applicant: TORAY INDUSTRIES
Inventor： MATSUMOTO KAZUHIKO , KITAMURA AKIHISA , ARAWASHI KOUJI
IPC: D01D5/34
Abstract: PURPOSE: To the subject device capable of producing conjugate yarn of desired shape with excellent reproducibility by packing a metal solder into a gap between a pipe of a flow channel of a core component polymer and a plate which is engaged with the pipe and supports the pipe. CONSTITUTION: A gap formed between a pipe 1 of a flow channel of a core component polymer and a plate III which is engaged with the pipe and supports the pipe is packed with a metal solder 5 such as nickel, copper, cobalt, manganese, stainless steel, duralumin or brass to provide the objective device. End breakage caused by abnormal retention of a polymer in the spinneret and deficiency in a sheath component can be prevented. The device is applicable to a spinneret for a multi-component yarn (polymer mutual arrangement yarn).
-
公开(公告)号：JPS56148905A
公开(公告)日：1981-11-18
申请号：JP4875980
申请日：1980-04-15
Applicant: TORAY INDUSTRIES
Inventor： FUJITA SHIGERU , KASHIWAGI MASATAKA , KITAMURA AKIHISA
IPC: D01D5/36
Abstract: PURPOSE:The island component is formed into specifically arranged groups of fine continuous lines and a plurality of these groups are positioned in the flow of the sea component to form conjugate fibers with perfect island-in-sea section continuously with no problems on quality such as viscosity difference. CONSTITUTION:The fine continuous lines of the island component 8 are arranged in a plurality of annular circles or additionally another continuous line of the island component is passed through the center of the annular circles. When each annular circle is named as a, b, c, d... in order from the innermost one and each interval between these circles is expressed with L1, L2, L3... in order, the interval between the groups of island continuous lines is set so as to satisfy the equation: L1>L2>L3 or L1>L2 L3 or L1 L2>L3.L1 is required to be 1.1-3 times Ln (the interval in the outermost circle).
-
-
-
-
-
-
-
-
-
Search Results
10
records
(took 0.022 seconds)
