发明授权
- 专利标题: Process for producing a highly oriented polyester undrawn yarn
- 专利标题(中): 高取向涤纶未拉丝纱的制造方法
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申请号: US595344申请日: 1975-07-14
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公开(公告)号: US4049763A公开(公告)日: 1977-09-20
- 发明人: Masatoshi Mineo , Ken-ichiro Oka , Kiyoshi Nakagawa , Hiyoshi Matsuda , Shigeo Ohno , Yasuo Takagi
- 申请人: Masatoshi Mineo , Ken-ichiro Oka , Kiyoshi Nakagawa , Hiyoshi Matsuda , Shigeo Ohno , Yasuo Takagi
- 申请人地址: JA Tokyo
- 专利权人: Toray Industries, Inc.
- 当前专利权人: Toray Industries, Inc.
- 当前专利权人地址: JA Tokyo
- 优先权: JA49-83777 19740723
- 主分类号: D01D7/00
- IPC分类号: D01D7/00 ; D01D5/12 ; D01F6/62
摘要:
A process for producing a highly oriented polyester undrawn yarn comprising melt-spinning a polyester from a spinneret, solidifying the melt-spun yarn and taking up a solidified yarn at a take-up velocity from 2,500 to 4,500 m/min, wherein the spinning length is set within a specific range in accordance with the take-up velocity, yarn denier and maximum allowable tension of the yarn.
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