Title:
抽出用フィルター用不織布
Document Type and Number:
Japanese Patent JP7238061
Kind Code:
B2
Abstract:
To provide a non-woven fabric for an extraction filter having excellent strength, heat sealability and extractability, and to provide a method for producing the same.SOLUTION: A non-woven fabric for an extraction filter of the present invention comprises: stretched polyester-based fibers having a fineness of 1.5 dtex or more and 2.0 dtex or less, and an average fiber length of 7 mm or more and 20 mm or less; unstretched polyester-based fibers having a fineness of 1.0 dtex or more and 2.0 dtex or less, and an average fiber length of 3 mm or more and 10 mm or less; and polyester-based core-sheath type composite fibers having a fineness of 1.1 dtex or more and 2.5 dtex or less, and the average fiber length is 3 mm or more and 10 mm or less. The content of the stretched polyester-based fibers is preferably 15% by mass or more and 30% by mass or less, the content of the unstretched polyester-based fibers is preferably 20% by mass or more and 35% by mass or less, and the content of the polyester-based core-sheath type composite fibers is preferably 15% by mass or more and 35% by mass or less.SELECTED DRAWING: None
Inventors:
Junya Toyota
Application Number:
JP2021154051A
Publication Date:
March 13, 2023
Filing Date:
September 22, 2021
Export Citation:
Assignee:
Daio Paper Co., Ltd.
International Classes:
D21H13/24; A47J31/06; B01D39/16; D04H1/435; D04H1/4382; D04H1/541; D04H1/55; D21H15/10
Domestic Patent References:
| JP2019013345A | ||||
| JP2017036521A |
Attorney, Agent or Firm:
Yoshinori Ikeda
Amano Kazunori
Amano Kazunori
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