- 专利标题： SHEET-LIKE FILTER, MASK, AND SHEET MANUFACTURING APPARATUS
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申请号： US17323002申请日： 2021-05-18
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公开(公告)号： US20210361986A1公开(公告)日： 2021-11-25
- 发明人: Satomi YOSHIOKA , Naotaka HIGUCHI , Shigeo FUJITA , Shunichi SEKI , Kazuhiro ICHIKAWA , Akio ITO
- 申请人： SEIKO EPSON CORPORATION
- 申请人地址： JP Tokyo
- 专利权人： SEIKO EPSON CORPORATION
- 当前专利权人： SEIKO EPSON CORPORATION
- 当前专利权人地址： JP Tokyo
- 优先权： JP2020-088459 20200520
- 主分类号： A62B23/02
- IPC分类号： A62B23/02 ; A41D13/11
摘要：
A sheet-like filter includes a first fiber that is mainly composed of polylactic acid, and a second fiber that is mainly composed of polylactic acid and has a core portion and a cover layer covering the core portion, in which the cover layer functions as a binder for fusing the first fiber and the second fiber. In addition, when a melting point of the core portion is denoted by Tm1 and a melting point of the cover layer is denoted by Tm2, it may be Tm2
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