Invention Grant
- Patent Title: Spunbonded nonwoven fabric and filter using same
- Patent Title (中): 纺粘无纺布和使用其的过滤器
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Application No.: US13808176Application Date: 2010-12-10
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Publication No.: US09011567B2Publication Date: 2015-04-21
- Inventor: Hiroyuki Sakamoto
- Applicant: Hiroyuki Sakamoto
- Applicant Address: JP Osaka
- Assignee: Toyobo Co., Ltd.
- Current Assignee: Toyobo Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Fish & Richardson P.C.
- Priority: JP2010-153701 20100706
- International Application: PCT/JP2010/072206 WO 20101210
- International Announcement: WO2012/004905 WO 20120112
- Main IPC: B01D50/00
- IPC: B01D50/00 ; B01D39/16 ; D04H3/011 ; D04H1/4382 ; D04H1/541

Abstract:
The purpose of the present invention is to obtain a spunbonded nonwoven fabric, which comprises a single-component polyester-based fibers, having a high basis weight and a high rigidity by embossing, which is difficult to attain in the conventional art. Further, the present invention provides a filter base material having excellent pleatability, pleat retention property and durability, and a filter using thereof. The present spunbonded nonwoven fabric is obtained by subjecting a deposited fiber assembly to a thermocompression bonding by embossing with a pair of an embossing roll and a flat metal roll, and has a basis weight of 150 to 400 g/m2, a longitudinal bending repulsion of 20 to 60 mN and a longitudinal tensile strength of 400 N/5 cm or more.
Public/Granted literature
- US20130111861A1 Spunbonded Nonwoven Fabric And Filter Using Same Public/Granted day:2013-05-09
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