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1. 发明专利

JPH0881825A POLYHEXAMETHYLENE ADIPAMIDE MULTIFILAMENT YARN AND ITS PRODUCTION 失效
公开(公告)号：JPH0881825A
公开(公告)日：1996-03-26
申请号：JP21842294
申请日：1994-09-13
申请人： ASAHI CHEMICAL IND
发明人： YAMASHITA MASAAKI , KAI MASANOBU
IPC分类号： D01D1/04 , D01D5/08 , D01F6/60 , D04B21/00
摘要： PURPOSE: To obtain polyhexamethylene adipamide multifilament properties due to the thermal and tensile history to be subjected during such processes as weaving, knitting, dyeing and heat-setting, thus useful for flexible clothing, by melt spinning of polyhexamethylene adipamide under specified conditions. CONSTITUTION: This polyhexamethylene adipamide multifilament yarn is obtained by melt spinning of polyhexamethylene adipamide chips 1000-3000ppm in moisture content W at a spinning speed of >=4000m/min at a spinning temperature T( deg.C) satisfying the relationship: T>=28/d +tm -0.01(W-1000) [(d) is the single fiber fineness (denier); (tm ) is the melting point of the chips( deg.C); T>=290]. This multifilament yarn has the following characteristics: comprising >=70 single fibers each having a fineness of 0.1-0.9 denier; having a single-peak thermal shrinkage stress-temperature curve (>=30 deg.C) (peak temperature: Mpa.

2. 发明专利

JPH033867A INDIVIDUAL TYPE CUT YARN PROCESSING DEVICE 失效
公开(公告)号：JPH033867A
公开(公告)日：1991-01-09
申请号：JP13464289
申请日：1989-05-30
申请人： ASAHI CHEMICAL IND
发明人： KAI MASANOBU , KAI MITSUO , KIMURA TOSHIHISA
IPC分类号： B65H63/036 , B65H54/88 , D01D11/00
摘要： PURPOSE:To improve the production yield and realize an economically advantageous state by installing the yarn cut detectors in the equal number to the number of yarns and a yarn cutter and a suction aspirator on the downstream side of the cooling wind for one cooling chimney. CONSTITUTION:Yarn cutting devices 4 in the equal number to the number of yarns are installed at the position close to an oil feeding device in the vicinity of a cooling chimney 2 or the position close to the first convergence point 5, directly under a spinneret 1. The yarn cutter 4 may be any type permitting the cutting of yarn, and the well-known or an article on the market can be used as it is. Then, one suction aspirator 6 for one unit of the cooling chimney 2 is installed on the downestream side of the cooling wind blown out from the filter 3 of the cooling chimney 2. In this case, the need of a special strong suction force for the suction aspirator 6 for sucking the cut yarn in free fall is obviated. Further, a yarn cut detector 11 is installed between the goddet rollers 9 and 10 and a taking-up machine 12. Then, the cut yarn detector on the market can be used as it is.

3. 发明专利

JPH07310227A NYLON 66 MULTIFILAMENT YARN 失效
公开(公告)号：JPH07310227A
公开(公告)日：1995-11-28
申请号：JP9964594
申请日：1994-05-13
申请人： ASAHI CHEMICAL IND
发明人： KANEKIYO KENJI , KAI MASANOBU
IPC分类号： D01F6/60
摘要： PURPOSE:To obtain nylon 66 multifilament yarns suitable e.g. for blending and orthoblending with polyester fibers, etc., having specific physical properties and causing very little yellowing in a setting process, free from embrittlement even by wet-heat treatment at a high temperature, exhibiting flexibility and excellent in hand feelings, dyeability, etc. CONSTITUTION:This nylon 66 multifilament yarn has the following characteristics; the initial modulus at 20 deg.C and 60% RH is 15-45g/d, the peak height of dynamic loss tangent (tandelta)max and the peak temperature [Tmax ( deg.C)] satisfy the formula, the peak temperature is =85% and the birefringence (DELTAn) at the center of the fiber is 37X10 to 50X10 . Further, the yarn has 55-100 milli-equivalent amino terminal group based on 1kg yarn. The monofilament denier of this filament is preferably within the range of 0.3-1.0.

4. 发明专利

JPH07197349A UNION CLOTH 失效
公开(公告)号：JPH07197349A
公开(公告)日：1995-08-01
申请号：JP35214593
申请日：1993-12-29
申请人： ASAHI CHEMICAL IND
发明人： KAI MASANOBU
IPC分类号： D03D15/00
摘要： PURPOSE:To obtain union cloth to which soft touch feel is imparted without impairing the touch feel and grade of genuine cotton fabric. CONSTITUTION:This union cloth comprises cotton yarns and nylon multifilament yarns. The nylon multifilament yarns have been produced by high-speed spinning at a winding velocity of >=4000m/min.

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