Title:
SPUNBONDED NONWOVEN FABRIC AND FILTER USING SAME
Document Type and Number:
WIPO Patent Application WO/2012/004905
Kind Code:
A1
Abstract:
Provided are: a spunbonded nonwoven fabric that consists of single-component polyester-based fibers and that is produced by embossing and has a high basis weight and high rigidity which were difficult to attain in the prior art; a filter base material which combines excellent pleatability, excellent pleat retention property and durability while keeping filter performance; and a filter using the filter base material. A spunbonded nonwoven fabric which is obtained by subjecting a fiber aggregate that consists of stacked single-component polyester-based fibers to thermocompression bonding using one pair of rolls, namely, an embossing roll and a flat metal roll, and which exhibits a basis weight of 150 to 400g/m2, a longitudinal bending repulsion of 20 to 60mN, and a longitudinal tensile strength of 400N/5cm or more.
Inventors:
SAKAMOTO HIROYUKI (JP)
Application Number:
PCT/JP2010/072206
Publication Date:
January 12, 2012
Filing Date:
December 10, 2010
Export Citation:
Assignee:
TOYO BOSEKI (JP)
SAKAMOTO HIROYUKI (JP)
SAKAMOTO HIROYUKI (JP)
International Classes:
D04H3/16; B01D39/16; D04H3/00; D04H3/14
Foreign References:
| JP2007231500A | 2007-09-13 | |||
| JP2007237167A | 2007-09-20 | |||
| JPS62144723A | 1987-06-27 | |||
| JP2001123325A | 2001-05-08 | |||
| JPH1161568A | 1999-03-05 |
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Claims: