Invention Grant
- Patent Title: Sheet material for extraction, extraction filter, and extraction bag
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Application No.: US16605746Application Date: 2017-05-20
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Publication No.: US10882688B2Publication Date: 2021-01-05
- Inventor: Naoko Yamaguchi , Yoko Mitani
- Applicant: OHKI CO., LTD.
- Applicant Address: JP Osaka
- Assignee: OHKI CO., LTD.
- Current Assignee: OHKI CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Oliff PLC
- International Application: PCT/JP2017/018940 WO 20170520
- International Announcement: WO2018/216047 WO 20181129
- Main IPC: B65D85/808
- IPC: B65D85/808 ; B32B5/02 ; B32B5/26 ; D04H3/011 ; D04H3/016 ; A47J31/06 ; A47J31/18 ; B01D11/02 ; B32B7/14 ; B65D85/812

Abstract:
A sheet material for extraction with excellent transparency and extraction properties, is less likely to cause powder leakage, and has high modulus and excellent machine adaptability; an extraction filter; and an extraction bag. The sheet material having a first layer of a spunbonded nonwoven fabric formed from polyester-based fibers having an average diameter of 18 to 28 μm, the fabric having a basis weight of 8 to 19 g/m2; and a second layer of a meltblown nonwoven fabric formed from polyester-based fibers having an average diameter of 16 to 28 μm, the fabric having a basis weight of 2 to 8 g/m2, wherein the sum of the lengths of all fibers included in 1 cm2 of the sheet material for extraction is 3.3 to 4.8 m, and the 3% modulus is 5.5 N or higher; and an extraction filter and an extraction bag formed by this sheet material for extraction.
Public/Granted literature
- US20200221896A1 SHEET MATERIAL FOR EXTRACTION, EXTRACTION FILTER, AND EXTRACTION BAG Public/Granted day:2020-07-16
Information query
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